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| Commit | Line | Data |
|---|---|---|
| a0d0e21e | 1 | /* pp.c |
| 79072805 | 2 | * |
| 1129b882 NC |
3 | * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, |
| 4 | * 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 by Larry Wall and others | |
| 79072805 | 5 | * |
| a0d0e21e LW |
6 | * You may distribute under the terms of either the GNU General Public |
| 7 | * License or the Artistic License, as specified in the README file. | |
| 79072805 | 8 | * |
| a0d0e21e LW |
9 | */ |
| 10 | ||
| 11 | /* | |
| 4ac71550 TC |
12 | * 'It's a big house this, and very peculiar. Always a bit more |
| 13 | * to discover, and no knowing what you'll find round a corner. | |
| 14 | * And Elves, sir!' --Samwise Gamgee | |
| 15 | * | |
| 16 | * [p.225 of _The Lord of the Rings_, II/i: "Many Meetings"] | |
| a0d0e21e | 17 | */ |
| 79072805 | 18 | |
| 166f8a29 DM |
19 | /* This file contains general pp ("push/pop") functions that execute the |
| 20 | * opcodes that make up a perl program. A typical pp function expects to | |
| 21 | * find its arguments on the stack, and usually pushes its results onto | |
| 22 | * the stack, hence the 'pp' terminology. Each OP structure contains | |
| 23 | * a pointer to the relevant pp_foo() function. | |
| 24 | */ | |
| 25 | ||
| 79072805 | 26 | #include "EXTERN.h" |
| 864dbfa3 | 27 | #define PERL_IN_PP_C |
| 79072805 | 28 | #include "perl.h" |
| 77bc9082 | 29 | #include "keywords.h" |
| 79072805 | 30 | |
| a4af207c JH |
31 | #include "reentr.h" |
| 32 | ||
| dfe9444c AD |
33 | /* XXX I can't imagine anyone who doesn't have this actually _needs_ |
| 34 | it, since pid_t is an integral type. | |
| 35 | --AD 2/20/1998 | |
| 36 | */ | |
| 37 | #ifdef NEED_GETPID_PROTO | |
| 38 | extern Pid_t getpid (void); | |
| 8ac85365 NIS |
39 | #endif |
| 40 | ||
| 0630166f SP |
41 | /* |
| 42 | * Some BSDs and Cygwin default to POSIX math instead of IEEE. | |
| 43 | * This switches them over to IEEE. | |
| 44 | */ | |
| 45 | #if defined(LIBM_LIB_VERSION) | |
| 46 | _LIB_VERSION_TYPE _LIB_VERSION = _IEEE_; | |
| 47 | #endif | |
| 48 | ||
| 13017935 SM |
49 | /* variations on pp_null */ |
| 50 | ||
| 93a17b20 LW |
51 | PP(pp_stub) |
| 52 | { | |
| 97aff369 | 53 | dVAR; |
| 39644a26 | 54 | dSP; |
| 54310121 | 55 | if (GIMME_V == G_SCALAR) |
| 3280af22 | 56 | XPUSHs(&PL_sv_undef); |
| 93a17b20 LW |
57 | RETURN; |
| 58 | } | |
| 59 | ||
| 79072805 LW |
60 | /* Pushy stuff. */ |
| 61 | ||
| 93a17b20 LW |
62 | PP(pp_padav) |
| 63 | { | |
| 97aff369 | 64 | dVAR; dSP; dTARGET; |
| 13017935 | 65 | I32 gimme; |
| 533c011a | 66 | if (PL_op->op_private & OPpLVAL_INTRO) |
| a5911867 RGS |
67 | if (!(PL_op->op_private & OPpPAD_STATE)) |
| 68 | SAVECLEARSV(PAD_SVl(PL_op->op_targ)); | |
| 85e6fe83 | 69 | EXTEND(SP, 1); |
| 533c011a | 70 | if (PL_op->op_flags & OPf_REF) { |
| 85e6fe83 | 71 | PUSHs(TARG); |
| 93a17b20 | 72 | RETURN; |
| 78f9721b SM |
73 | } else if (LVRET) { |
| 74 | if (GIMME == G_SCALAR) | |
| 75 | Perl_croak(aTHX_ "Can't return array to lvalue scalar context"); | |
| 76 | PUSHs(TARG); | |
| 77 | RETURN; | |
| 85e6fe83 | 78 | } |
| 13017935 SM |
79 | gimme = GIMME_V; |
| 80 | if (gimme == G_ARRAY) { | |
| 502c6561 | 81 | const I32 maxarg = AvFILL(MUTABLE_AV(TARG)) + 1; |
| 85e6fe83 | 82 | EXTEND(SP, maxarg); |
| 93965878 NIS |
83 | if (SvMAGICAL(TARG)) { |
| 84 | U32 i; | |
| eb160463 | 85 | for (i=0; i < (U32)maxarg; i++) { |
| 502c6561 | 86 | SV * const * const svp = av_fetch(MUTABLE_AV(TARG), i, FALSE); |
| 3280af22 | 87 | SP[i+1] = (svp) ? *svp : &PL_sv_undef; |
| 93965878 NIS |
88 | } |
| 89 | } | |
| 90 | else { | |
| 502c6561 | 91 | Copy(AvARRAY((const AV *)TARG), SP+1, maxarg, SV*); |
| 93965878 | 92 | } |
| 85e6fe83 LW |
93 | SP += maxarg; |
| 94 | } | |
| 13017935 | 95 | else if (gimme == G_SCALAR) { |
| 1b6737cc | 96 | SV* const sv = sv_newmortal(); |
| 502c6561 | 97 | const I32 maxarg = AvFILL(MUTABLE_AV(TARG)) + 1; |
| 85e6fe83 LW |
98 | sv_setiv(sv, maxarg); |
| 99 | PUSHs(sv); | |
| 100 | } | |
| 101 | RETURN; | |
| 93a17b20 LW |
102 | } |
| 103 | ||
| 104 | PP(pp_padhv) | |
| 105 | { | |
| 97aff369 | 106 | dVAR; dSP; dTARGET; |
| 54310121 | 107 | I32 gimme; |
| 108 | ||
| 93a17b20 | 109 | XPUSHs(TARG); |
| 533c011a | 110 | if (PL_op->op_private & OPpLVAL_INTRO) |
| a5911867 RGS |
111 | if (!(PL_op->op_private & OPpPAD_STATE)) |
| 112 | SAVECLEARSV(PAD_SVl(PL_op->op_targ)); | |
| 533c011a | 113 | if (PL_op->op_flags & OPf_REF) |
| 93a17b20 | 114 | RETURN; |
| 78f9721b SM |
115 | else if (LVRET) { |
| 116 | if (GIMME == G_SCALAR) | |
| 117 | Perl_croak(aTHX_ "Can't return hash to lvalue scalar context"); | |
| 118 | RETURN; | |
| 119 | } | |
| 54310121 | 120 | gimme = GIMME_V; |
| 121 | if (gimme == G_ARRAY) { | |
| cea2e8a9 | 122 | RETURNOP(do_kv()); |
| 85e6fe83 | 123 | } |
| 54310121 | 124 | else if (gimme == G_SCALAR) { |
| 85fbaab2 | 125 | SV* const sv = Perl_hv_scalar(aTHX_ MUTABLE_HV(TARG)); |
| 85e6fe83 | 126 | SETs(sv); |
| 85e6fe83 | 127 | } |
| 54310121 | 128 | RETURN; |
| 93a17b20 LW |
129 | } |
| 130 | ||
| 79072805 LW |
131 | /* Translations. */ |
| 132 | ||
| 133 | PP(pp_rv2gv) | |
| 134 | { | |
| 97aff369 | 135 | dVAR; dSP; dTOPss; |
| 8ec5e241 | 136 | |
| ed6116ce | 137 | if (SvROK(sv)) { |
| a0d0e21e | 138 | wasref: |
| f5284f61 IZ |
139 | tryAMAGICunDEREF(to_gv); |
| 140 | ||
| ed6116ce | 141 | sv = SvRV(sv); |
| b1dadf13 | 142 | if (SvTYPE(sv) == SVt_PVIO) { |
| 159b6efe | 143 | GV * const gv = MUTABLE_GV(sv_newmortal()); |
| b1dadf13 | 144 | gv_init(gv, 0, "", 0, 0); |
| a45c7426 | 145 | GvIOp(gv) = MUTABLE_IO(sv); |
| b37c2d43 | 146 | SvREFCNT_inc_void_NN(sv); |
| ad64d0ec | 147 | sv = MUTABLE_SV(gv); |
| ef54e1a4 | 148 | } |
| 6e592b3a | 149 | else if (!isGV_with_GP(sv)) |
| cea2e8a9 | 150 | DIE(aTHX_ "Not a GLOB reference"); |
| 79072805 LW |
151 | } |
| 152 | else { | |
| 6e592b3a | 153 | if (!isGV_with_GP(sv)) { |
| a0d0e21e LW |
154 | if (SvGMAGICAL(sv)) { |
| 155 | mg_get(sv); | |
| 156 | if (SvROK(sv)) | |
| 157 | goto wasref; | |
| 158 | } | |
| afd1915d | 159 | if (!SvOK(sv) && sv != &PL_sv_undef) { |
| b13b2135 | 160 | /* If this is a 'my' scalar and flag is set then vivify |
| 853846ea | 161 | * NI-S 1999/05/07 |
| b13b2135 | 162 | */ |
| ac53db4c | 163 | if (SvREADONLY(sv)) |
| f1f66076 | 164 | Perl_croak(aTHX_ "%s", PL_no_modify); |
| 1d8d4d2a | 165 | if (PL_op->op_private & OPpDEREF) { |
| 2c8ac474 GS |
166 | GV *gv; |
| 167 | if (cUNOP->op_targ) { | |
| 168 | STRLEN len; | |
| 0bd48802 AL |
169 | SV * const namesv = PAD_SV(cUNOP->op_targ); |
| 170 | const char * const name = SvPV(namesv, len); | |
| 159b6efe | 171 | gv = MUTABLE_GV(newSV(0)); |
| 2c8ac474 GS |
172 | gv_init(gv, CopSTASH(PL_curcop), name, len, 0); |
| 173 | } | |
| 174 | else { | |
| 0bd48802 | 175 | const char * const name = CopSTASHPV(PL_curcop); |
| 2c8ac474 | 176 | gv = newGVgen(name); |
| 1d8d4d2a | 177 | } |
| 43230e26 | 178 | prepare_SV_for_RV(sv); |
| ad64d0ec | 179 | SvRV_set(sv, MUTABLE_SV(gv)); |
| 853846ea | 180 | SvROK_on(sv); |
| 1d8d4d2a | 181 | SvSETMAGIC(sv); |
| 853846ea | 182 | goto wasref; |
| 2c8ac474 | 183 | } |
| 533c011a NIS |
184 | if (PL_op->op_flags & OPf_REF || |
| 185 | PL_op->op_private & HINT_STRICT_REFS) | |
| cea2e8a9 | 186 | DIE(aTHX_ PL_no_usym, "a symbol"); |
| 599cee73 | 187 | if (ckWARN(WARN_UNINITIALIZED)) |
| 29489e7c | 188 | report_uninit(sv); |
| a0d0e21e LW |
189 | RETSETUNDEF; |
| 190 | } | |
| 35cd451c GS |
191 | if ((PL_op->op_flags & OPf_SPECIAL) && |
| 192 | !(PL_op->op_flags & OPf_MOD)) | |
| 193 | { | |
| ad64d0ec | 194 | SV * const temp = MUTABLE_SV(gv_fetchsv(sv, 0, SVt_PVGV)); |
| 7a5fd60d NC |
195 | if (!temp |
| 196 | && (!is_gv_magical_sv(sv,0) | |
| ad64d0ec NC |
197 | || !(sv = MUTABLE_SV(gv_fetchsv(sv, GV_ADD, |
| 198 | SVt_PVGV))))) { | |
| 35cd451c | 199 | RETSETUNDEF; |
| c9d5ac95 | 200 | } |
| 7a5fd60d | 201 | sv = temp; |
| 35cd451c GS |
202 | } |
| 203 | else { | |
| 204 | if (PL_op->op_private & HINT_STRICT_REFS) | |
| 7a5fd60d | 205 | DIE(aTHX_ PL_no_symref_sv, sv, "a symbol"); |
| e26df76a NC |
206 | if ((PL_op->op_private & (OPpLVAL_INTRO|OPpDONT_INIT_GV)) |
| 207 | == OPpDONT_INIT_GV) { | |
| 208 | /* We are the target of a coderef assignment. Return | |
| 209 | the scalar unchanged, and let pp_sasssign deal with | |
| 210 | things. */ | |
| 211 | RETURN; | |
| 212 | } | |
| ad64d0ec | 213 | sv = MUTABLE_SV(gv_fetchsv(sv, GV_ADD, SVt_PVGV)); |
| 35cd451c | 214 | } |
| 93a17b20 | 215 | } |
| 79072805 | 216 | } |
| 533c011a | 217 | if (PL_op->op_private & OPpLVAL_INTRO) |
| 159b6efe | 218 | save_gp(MUTABLE_GV(sv), !(PL_op->op_flags & OPf_SPECIAL)); |
| 79072805 LW |
219 | SETs(sv); |
| 220 | RETURN; | |
| 221 | } | |
| 222 | ||
| dc3c76f8 NC |
223 | /* Helper function for pp_rv2sv and pp_rv2av */ |
| 224 | GV * | |
| fe9845cc RB |
225 | Perl_softref2xv(pTHX_ SV *const sv, const char *const what, |
| 226 | const svtype type, SV ***spp) | |
| dc3c76f8 NC |
227 | { |
| 228 | dVAR; | |
| 229 | GV *gv; | |
| 230 | ||
| 7918f24d NC |
231 | PERL_ARGS_ASSERT_SOFTREF2XV; |
| 232 | ||
| dc3c76f8 NC |
233 | if (PL_op->op_private & HINT_STRICT_REFS) { |
| 234 | if (SvOK(sv)) | |
| 235 | Perl_die(aTHX_ PL_no_symref_sv, sv, what); | |
| 236 | else | |
| 237 | Perl_die(aTHX_ PL_no_usym, what); | |
| 238 | } | |
| 239 | if (!SvOK(sv)) { | |
| 240 | if (PL_op->op_flags & OPf_REF) | |
| 241 | Perl_die(aTHX_ PL_no_usym, what); | |
| 242 | if (ckWARN(WARN_UNINITIALIZED)) | |
| 243 | report_uninit(sv); | |
| 244 | if (type != SVt_PV && GIMME_V == G_ARRAY) { | |
| 245 | (*spp)--; | |
| 246 | return NULL; | |
| 247 | } | |
| 248 | **spp = &PL_sv_undef; | |
| 249 | return NULL; | |
| 250 | } | |
| 251 | if ((PL_op->op_flags & OPf_SPECIAL) && | |
| 252 | !(PL_op->op_flags & OPf_MOD)) | |
| 253 | { | |
| 81e3fc25 | 254 | gv = gv_fetchsv(sv, 0, type); |
| dc3c76f8 NC |
255 | if (!gv |
| 256 | && (!is_gv_magical_sv(sv,0) | |
| 81e3fc25 | 257 | || !(gv = gv_fetchsv(sv, GV_ADD, type)))) |
| dc3c76f8 NC |
258 | { |
| 259 | **spp = &PL_sv_undef; | |
| 260 | return NULL; | |
| 261 | } | |
| 262 | } | |
| 263 | else { | |
| 81e3fc25 | 264 | gv = gv_fetchsv(sv, GV_ADD, type); |
| dc3c76f8 NC |
265 | } |
| 266 | return gv; | |
| 267 | } | |
| 268 | ||
| 79072805 LW |
269 | PP(pp_rv2sv) |
| 270 | { | |
| 97aff369 | 271 | dVAR; dSP; dTOPss; |
| c445ea15 | 272 | GV *gv = NULL; |
| 79072805 | 273 | |
| ed6116ce | 274 | if (SvROK(sv)) { |
| a0d0e21e | 275 | wasref: |
| f5284f61 IZ |
276 | tryAMAGICunDEREF(to_sv); |
| 277 | ||
| ed6116ce | 278 | sv = SvRV(sv); |
| 79072805 LW |
279 | switch (SvTYPE(sv)) { |
| 280 | case SVt_PVAV: | |
| 281 | case SVt_PVHV: | |
| 282 | case SVt_PVCV: | |
| cbae9b9f YST |
283 | case SVt_PVFM: |
| 284 | case SVt_PVIO: | |
| cea2e8a9 | 285 | DIE(aTHX_ "Not a SCALAR reference"); |
| 42d0e0b7 | 286 | default: NOOP; |
| 79072805 LW |
287 | } |
| 288 | } | |
| 289 | else { | |
| 159b6efe | 290 | gv = MUTABLE_GV(sv); |
| 748a9306 | 291 | |
| 6e592b3a | 292 | if (!isGV_with_GP(gv)) { |
| a0d0e21e LW |
293 | if (SvGMAGICAL(sv)) { |
| 294 | mg_get(sv); | |
| 295 | if (SvROK(sv)) | |
| 296 | goto wasref; | |
| 297 | } | |
| dc3c76f8 NC |
298 | gv = Perl_softref2xv(aTHX_ sv, "a SCALAR", SVt_PV, &sp); |
| 299 | if (!gv) | |
| 300 | RETURN; | |
| 463ee0b2 | 301 | } |
| 29c711a3 | 302 | sv = GvSVn(gv); |
| a0d0e21e | 303 | } |
| 533c011a | 304 | if (PL_op->op_flags & OPf_MOD) { |
| 82d03984 RGS |
305 | if (PL_op->op_private & OPpLVAL_INTRO) { |
| 306 | if (cUNOP->op_first->op_type == OP_NULL) | |
| 159b6efe | 307 | sv = save_scalar(MUTABLE_GV(TOPs)); |
| 82d03984 RGS |
308 | else if (gv) |
| 309 | sv = save_scalar(gv); | |
| 310 | else | |
| f1f66076 | 311 | Perl_croak(aTHX_ "%s", PL_no_localize_ref); |
| 82d03984 | 312 | } |
| 533c011a NIS |
313 | else if (PL_op->op_private & OPpDEREF) |
| 314 | vivify_ref(sv, PL_op->op_private & OPpDEREF); | |
| 79072805 | 315 | } |
| a0d0e21e | 316 | SETs(sv); |
| 79072805 LW |
317 | RETURN; |
| 318 | } | |
| 319 | ||
| 320 | PP(pp_av2arylen) | |
| 321 | { | |
| 97aff369 | 322 | dVAR; dSP; |
| 502c6561 NC |
323 | AV * const av = MUTABLE_AV(TOPs); |
| 324 | SV ** const sv = Perl_av_arylen_p(aTHX_ MUTABLE_AV(av)); | |
| a3874608 | 325 | if (!*sv) { |
| b9f83d2f | 326 | *sv = newSV_type(SVt_PVMG); |
| ad64d0ec | 327 | sv_magic(*sv, MUTABLE_SV(av), PERL_MAGIC_arylen, NULL, 0); |
| 79072805 | 328 | } |
| a3874608 | 329 | SETs(*sv); |
| 79072805 LW |
330 | RETURN; |
| 331 | } | |
| 332 | ||
| a0d0e21e LW |
333 | PP(pp_pos) |
| 334 | { | |
| 97aff369 | 335 | dVAR; dSP; dTARGET; dPOPss; |
| 8ec5e241 | 336 | |
| 78f9721b | 337 | if (PL_op->op_flags & OPf_MOD || LVRET) { |
| 5f05dabc | 338 | if (SvTYPE(TARG) < SVt_PVLV) { |
| 339 | sv_upgrade(TARG, SVt_PVLV); | |
| c445ea15 | 340 | sv_magic(TARG, NULL, PERL_MAGIC_pos, NULL, 0); |
| 5f05dabc | 341 | } |
| 342 | ||
| 343 | LvTYPE(TARG) = '.'; | |
| 6ff81951 GS |
344 | if (LvTARG(TARG) != sv) { |
| 345 | if (LvTARG(TARG)) | |
| 346 | SvREFCNT_dec(LvTARG(TARG)); | |
| b37c2d43 | 347 | LvTARG(TARG) = SvREFCNT_inc_simple(sv); |
| 6ff81951 | 348 | } |
| a0d0e21e LW |
349 | PUSHs(TARG); /* no SvSETMAGIC */ |
| 350 | RETURN; | |
| 351 | } | |
| 352 | else { | |
| a0d0e21e | 353 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) { |
| 1b6737cc | 354 | const MAGIC * const mg = mg_find(sv, PERL_MAGIC_regex_global); |
| 565764a8 | 355 | if (mg && mg->mg_len >= 0) { |
| a0ed51b3 | 356 | I32 i = mg->mg_len; |
| 7e2040f0 | 357 | if (DO_UTF8(sv)) |
| a0ed51b3 | 358 | sv_pos_b2u(sv, &i); |
| fc15ae8f | 359 | PUSHi(i + CopARYBASE_get(PL_curcop)); |
| a0d0e21e LW |
360 | RETURN; |
| 361 | } | |
| 362 | } | |
| 363 | RETPUSHUNDEF; | |
| 364 | } | |
| 365 | } | |
| 366 | ||
| 79072805 LW |
367 | PP(pp_rv2cv) |
| 368 | { | |
| 97aff369 | 369 | dVAR; dSP; |
| 79072805 | 370 | GV *gv; |
| 1eced8f8 | 371 | HV *stash_unused; |
| c445ea15 AL |
372 | const I32 flags = (PL_op->op_flags & OPf_SPECIAL) |
| 373 | ? 0 | |
| 374 | : ((PL_op->op_private & (OPpLVAL_INTRO|OPpMAY_RETURN_CONSTANT)) == OPpMAY_RETURN_CONSTANT) | |
| 375 | ? GV_ADD|GV_NOEXPAND | |
| 376 | : GV_ADD; | |
| 4633a7c4 LW |
377 | /* We usually try to add a non-existent subroutine in case of AUTOLOAD. */ |
| 378 | /* (But not in defined().) */ | |
| e26df76a | 379 | |
| 1eced8f8 | 380 | CV *cv = sv_2cv(TOPs, &stash_unused, &gv, flags); |
| 07055b4c CS |
381 | if (cv) { |
| 382 | if (CvCLONE(cv)) | |
| ad64d0ec | 383 | cv = MUTABLE_CV(sv_2mortal(MUTABLE_SV(cv_clone(cv)))); |
| d32f2495 SC |
384 | if ((PL_op->op_private & OPpLVAL_INTRO)) { |
| 385 | if (gv && GvCV(gv) == cv && (gv = gv_autoload4(GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv), FALSE))) | |
| 386 | cv = GvCV(gv); | |
| 387 | if (!CvLVALUE(cv)) | |
| 388 | DIE(aTHX_ "Can't modify non-lvalue subroutine call"); | |
| 389 | } | |
| 07055b4c | 390 | } |
| e26df76a | 391 | else if ((flags == (GV_ADD|GV_NOEXPAND)) && gv && SvROK(gv)) { |
| ea726b52 | 392 | cv = MUTABLE_CV(gv); |
| e26df76a | 393 | } |
| 07055b4c | 394 | else |
| ea726b52 | 395 | cv = MUTABLE_CV(&PL_sv_undef); |
| ad64d0ec | 396 | SETs(MUTABLE_SV(cv)); |
| 79072805 LW |
397 | RETURN; |
| 398 | } | |
| 399 | ||
| c07a80fd | 400 | PP(pp_prototype) |
| 401 | { | |
| 97aff369 | 402 | dVAR; dSP; |
| c07a80fd | 403 | CV *cv; |
| 404 | HV *stash; | |
| 405 | GV *gv; | |
| fabdb6c0 | 406 | SV *ret = &PL_sv_undef; |
| c07a80fd | 407 | |
| b6c543e3 | 408 | if (SvPOK(TOPs) && SvCUR(TOPs) >= 7) { |
| e3f73d4e | 409 | const char * s = SvPVX_const(TOPs); |
| b6c543e3 | 410 | if (strnEQ(s, "CORE::", 6)) { |
| 5458a98a | 411 | const int code = keyword(s + 6, SvCUR(TOPs) - 6, 1); |
| b6c543e3 IZ |
412 | if (code < 0) { /* Overridable. */ |
| 413 | #define MAX_ARGS_OP ((sizeof(I32) - 1) * 2) | |
| 59b085e1 | 414 | int i = 0, n = 0, seen_question = 0, defgv = 0; |
| b6c543e3 IZ |
415 | I32 oa; |
| 416 | char str[ MAX_ARGS_OP * 2 + 2 ]; /* One ';', one '\0' */ | |
| 417 | ||
| bdf1bb36 | 418 | if (code == -KEY_chop || code == -KEY_chomp |
| f23102e2 | 419 | || code == -KEY_exec || code == -KEY_system) |
| 77bc9082 | 420 | goto set; |
| d116c547 | 421 | if (code == -KEY_mkdir) { |
| 84bafc02 | 422 | ret = newSVpvs_flags("_;$", SVs_TEMP); |
| d116c547 RGS |
423 | goto set; |
| 424 | } | |
| e3f73d4e RGS |
425 | if (code == -KEY_readpipe) { |
| 426 | s = "CORE::backtick"; | |
| 427 | } | |
| b6c543e3 | 428 | while (i < MAXO) { /* The slow way. */ |
| 22c35a8c GS |
429 | if (strEQ(s + 6, PL_op_name[i]) |
| 430 | || strEQ(s + 6, PL_op_desc[i])) | |
| 431 | { | |
| b6c543e3 | 432 | goto found; |
| 22c35a8c | 433 | } |
| b6c543e3 IZ |
434 | i++; |
| 435 | } | |
| 436 | goto nonesuch; /* Should not happen... */ | |
| 437 | found: | |
| 59b085e1 | 438 | defgv = PL_opargs[i] & OA_DEFGV; |
| 22c35a8c | 439 | oa = PL_opargs[i] >> OASHIFT; |
| b6c543e3 | 440 | while (oa) { |
| 59b085e1 | 441 | if (oa & OA_OPTIONAL && !seen_question && !defgv) { |
| b6c543e3 IZ |
442 | seen_question = 1; |
| 443 | str[n++] = ';'; | |
| ef54e1a4 | 444 | } |
| b13b2135 | 445 | if ((oa & (OA_OPTIONAL - 1)) >= OA_AVREF |
| 6e97e420 SC |
446 | && (oa & (OA_OPTIONAL - 1)) <= OA_SCALARREF |
| 447 | /* But globs are already references (kinda) */ | |
| 448 | && (oa & (OA_OPTIONAL - 1)) != OA_FILEREF | |
| 449 | ) { | |
| b6c543e3 IZ |
450 | str[n++] = '\\'; |
| 451 | } | |
| b6c543e3 IZ |
452 | str[n++] = ("?$@@%&*$")[oa & (OA_OPTIONAL - 1)]; |
| 453 | oa = oa >> 4; | |
| 454 | } | |
| 59b085e1 RGS |
455 | if (defgv && str[n - 1] == '$') |
| 456 | str[n - 1] = '_'; | |
| b6c543e3 | 457 | str[n++] = '\0'; |
| 59cd0e26 | 458 | ret = newSVpvn_flags(str, n - 1, SVs_TEMP); |
| ef54e1a4 JH |
459 | } |
| 460 | else if (code) /* Non-Overridable */ | |
| b6c543e3 IZ |
461 | goto set; |
| 462 | else { /* None such */ | |
| 463 | nonesuch: | |
| d470f89e | 464 | DIE(aTHX_ "Can't find an opnumber for \"%s\"", s+6); |
| b6c543e3 IZ |
465 | } |
| 466 | } | |
| 467 | } | |
| f2c0649b | 468 | cv = sv_2cv(TOPs, &stash, &gv, 0); |
| 5f05dabc | 469 | if (cv && SvPOK(cv)) |
| 59cd0e26 | 470 | ret = newSVpvn_flags(SvPVX_const(cv), SvCUR(cv), SVs_TEMP); |
| b6c543e3 | 471 | set: |
| c07a80fd | 472 | SETs(ret); |
| 473 | RETURN; | |
| 474 | } | |
| 475 | ||
| a0d0e21e LW |
476 | PP(pp_anoncode) |
| 477 | { | |
| 97aff369 | 478 | dVAR; dSP; |
| ea726b52 | 479 | CV *cv = MUTABLE_CV(PAD_SV(PL_op->op_targ)); |
| a5f75d66 | 480 | if (CvCLONE(cv)) |
| ad64d0ec | 481 | cv = MUTABLE_CV(sv_2mortal(MUTABLE_SV(cv_clone(cv)))); |
| 5f05dabc | 482 | EXTEND(SP,1); |
| ad64d0ec | 483 | PUSHs(MUTABLE_SV(cv)); |
| a0d0e21e LW |
484 | RETURN; |
| 485 | } | |
| 486 | ||
| 487 | PP(pp_srefgen) | |
| 79072805 | 488 | { |
| 97aff369 | 489 | dVAR; dSP; |
| 71be2cbc | 490 | *SP = refto(*SP); |
| 79072805 | 491 | RETURN; |
| 8ec5e241 | 492 | } |
| a0d0e21e LW |
493 | |
| 494 | PP(pp_refgen) | |
| 495 | { | |
| 97aff369 | 496 | dVAR; dSP; dMARK; |
| a0d0e21e | 497 | if (GIMME != G_ARRAY) { |
| 5f0b1d4e GS |
498 | if (++MARK <= SP) |
| 499 | *MARK = *SP; | |
| 500 | else | |
| 3280af22 | 501 | *MARK = &PL_sv_undef; |
| 5f0b1d4e GS |
502 | *MARK = refto(*MARK); |
| 503 | SP = MARK; | |
| 504 | RETURN; | |
| a0d0e21e | 505 | } |
| bbce6d69 | 506 | EXTEND_MORTAL(SP - MARK); |
| 71be2cbc | 507 | while (++MARK <= SP) |
| 508 | *MARK = refto(*MARK); | |
| a0d0e21e | 509 | RETURN; |
| 79072805 LW |
510 | } |
| 511 | ||
| 76e3520e | 512 | STATIC SV* |
| cea2e8a9 | 513 | S_refto(pTHX_ SV *sv) |
| 71be2cbc | 514 | { |
| 97aff369 | 515 | dVAR; |
| 71be2cbc | 516 | SV* rv; |
| 517 | ||
| 7918f24d NC |
518 | PERL_ARGS_ASSERT_REFTO; |
| 519 | ||
| 71be2cbc | 520 | if (SvTYPE(sv) == SVt_PVLV && LvTYPE(sv) == 'y') { |
| 521 | if (LvTARGLEN(sv)) | |
| 68dc0745 | 522 | vivify_defelem(sv); |
| 523 | if (!(sv = LvTARG(sv))) | |
| 3280af22 | 524 | sv = &PL_sv_undef; |
| 0dd88869 | 525 | else |
| b37c2d43 | 526 | SvREFCNT_inc_void_NN(sv); |
| 71be2cbc | 527 | } |
| d8b46c1b | 528 | else if (SvTYPE(sv) == SVt_PVAV) { |
| 502c6561 NC |
529 | if (!AvREAL((const AV *)sv) && AvREIFY((const AV *)sv)) |
| 530 | av_reify(MUTABLE_AV(sv)); | |
| d8b46c1b | 531 | SvTEMP_off(sv); |
| b37c2d43 | 532 | SvREFCNT_inc_void_NN(sv); |
| d8b46c1b | 533 | } |
| f2933f5f DM |
534 | else if (SvPADTMP(sv) && !IS_PADGV(sv)) |
| 535 | sv = newSVsv(sv); | |
| 71be2cbc | 536 | else { |
| 537 | SvTEMP_off(sv); | |
| b37c2d43 | 538 | SvREFCNT_inc_void_NN(sv); |
| 71be2cbc | 539 | } |
| 540 | rv = sv_newmortal(); | |
| 4df7f6af | 541 | sv_upgrade(rv, SVt_IV); |
| b162af07 | 542 | SvRV_set(rv, sv); |
| 71be2cbc | 543 | SvROK_on(rv); |
| 544 | return rv; | |
| 545 | } | |
| 546 | ||
| 79072805 LW |
547 | PP(pp_ref) |
| 548 | { | |
| 97aff369 | 549 | dVAR; dSP; dTARGET; |
| e1ec3a88 | 550 | const char *pv; |
| 1b6737cc | 551 | SV * const sv = POPs; |
| f12c7020 | 552 | |
| 5b295bef RD |
553 | if (sv) |
| 554 | SvGETMAGIC(sv); | |
| f12c7020 | 555 | |
| a0d0e21e | 556 | if (!sv || !SvROK(sv)) |
| 4633a7c4 | 557 | RETPUSHNO; |
| 79072805 | 558 | |
| 1b6737cc | 559 | pv = sv_reftype(SvRV(sv),TRUE); |
| 463ee0b2 | 560 | PUSHp(pv, strlen(pv)); |
| 79072805 LW |
561 | RETURN; |
| 562 | } | |
| 563 | ||
| 564 | PP(pp_bless) | |
| 565 | { | |
| 97aff369 | 566 | dVAR; dSP; |
| 463ee0b2 | 567 | HV *stash; |
| 79072805 | 568 | |
| 463ee0b2 | 569 | if (MAXARG == 1) |
| 11faa288 | 570 | stash = CopSTASH(PL_curcop); |
| 7b8d334a | 571 | else { |
| 1b6737cc | 572 | SV * const ssv = POPs; |
| 7b8d334a | 573 | STRLEN len; |
| e1ec3a88 | 574 | const char *ptr; |
| 81689caa | 575 | |
| 016a42f3 | 576 | if (ssv && !SvGMAGICAL(ssv) && !SvAMAGIC(ssv) && SvROK(ssv)) |
| 81689caa | 577 | Perl_croak(aTHX_ "Attempt to bless into a reference"); |
| 5c144d81 | 578 | ptr = SvPV_const(ssv,len); |
| a2a5de95 NC |
579 | if (len == 0) |
| 580 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), | |
| 581 | "Explicit blessing to '' (assuming package main)"); | |
| da51bb9b | 582 | stash = gv_stashpvn(ptr, len, GV_ADD); |
| 7b8d334a | 583 | } |
| a0d0e21e | 584 | |
| 5d3fdfeb | 585 | (void)sv_bless(TOPs, stash); |
| 79072805 LW |
586 | RETURN; |
| 587 | } | |
| 588 | ||
| fb73857a | 589 | PP(pp_gelem) |
| 590 | { | |
| 97aff369 | 591 | dVAR; dSP; |
| b13b2135 | 592 | |
| 1b6737cc AL |
593 | SV *sv = POPs; |
| 594 | const char * const elem = SvPV_nolen_const(sv); | |
| 159b6efe | 595 | GV * const gv = MUTABLE_GV(POPs); |
| c445ea15 | 596 | SV * tmpRef = NULL; |
| 1b6737cc | 597 | |
| c445ea15 | 598 | sv = NULL; |
| c4ba80c3 NC |
599 | if (elem) { |
| 600 | /* elem will always be NUL terminated. */ | |
| 1b6737cc | 601 | const char * const second_letter = elem + 1; |
| c4ba80c3 NC |
602 | switch (*elem) { |
| 603 | case 'A': | |
| 1b6737cc | 604 | if (strEQ(second_letter, "RRAY")) |
| ad64d0ec | 605 | tmpRef = MUTABLE_SV(GvAV(gv)); |
| c4ba80c3 NC |
606 | break; |
| 607 | case 'C': | |
| 1b6737cc | 608 | if (strEQ(second_letter, "ODE")) |
| ad64d0ec | 609 | tmpRef = MUTABLE_SV(GvCVu(gv)); |
| c4ba80c3 NC |
610 | break; |
| 611 | case 'F': | |
| 1b6737cc | 612 | if (strEQ(second_letter, "ILEHANDLE")) { |
| c4ba80c3 NC |
613 | /* finally deprecated in 5.8.0 */ |
| 614 | deprecate("*glob{FILEHANDLE}"); | |
| ad64d0ec | 615 | tmpRef = MUTABLE_SV(GvIOp(gv)); |
| c4ba80c3 NC |
616 | } |
| 617 | else | |
| 1b6737cc | 618 | if (strEQ(second_letter, "ORMAT")) |
| ad64d0ec | 619 | tmpRef = MUTABLE_SV(GvFORM(gv)); |
| c4ba80c3 NC |
620 | break; |
| 621 | case 'G': | |
| 1b6737cc | 622 | if (strEQ(second_letter, "LOB")) |
| ad64d0ec | 623 | tmpRef = MUTABLE_SV(gv); |
| c4ba80c3 NC |
624 | break; |
| 625 | case 'H': | |
| 1b6737cc | 626 | if (strEQ(second_letter, "ASH")) |
| ad64d0ec | 627 | tmpRef = MUTABLE_SV(GvHV(gv)); |
| c4ba80c3 NC |
628 | break; |
| 629 | case 'I': | |
| 1b6737cc | 630 | if (*second_letter == 'O' && !elem[2]) |
| ad64d0ec | 631 | tmpRef = MUTABLE_SV(GvIOp(gv)); |
| c4ba80c3 NC |
632 | break; |
| 633 | case 'N': | |
| 1b6737cc | 634 | if (strEQ(second_letter, "AME")) |
| a663657d | 635 | sv = newSVhek(GvNAME_HEK(gv)); |
| c4ba80c3 NC |
636 | break; |
| 637 | case 'P': | |
| 1b6737cc | 638 | if (strEQ(second_letter, "ACKAGE")) { |
| 7fa3a4ab NC |
639 | const HV * const stash = GvSTASH(gv); |
| 640 | const HEK * const hek = stash ? HvNAME_HEK(stash) : NULL; | |
| 396482e1 | 641 | sv = hek ? newSVhek(hek) : newSVpvs("__ANON__"); |
| c4ba80c3 NC |
642 | } |
| 643 | break; | |
| 644 | case 'S': | |
| 1b6737cc | 645 | if (strEQ(second_letter, "CALAR")) |
| f9d52e31 | 646 | tmpRef = GvSVn(gv); |
| c4ba80c3 | 647 | break; |
| 39b99f21 | 648 | } |
| fb73857a | 649 | } |
| 76e3520e GS |
650 | if (tmpRef) |
| 651 | sv = newRV(tmpRef); | |
| fb73857a | 652 | if (sv) |
| 653 | sv_2mortal(sv); | |
| 654 | else | |
| 3280af22 | 655 | sv = &PL_sv_undef; |
| fb73857a | 656 | XPUSHs(sv); |
| 657 | RETURN; | |
| 658 | } | |
| 659 | ||
| a0d0e21e | 660 | /* Pattern matching */ |
| 79072805 | 661 | |
| a0d0e21e | 662 | PP(pp_study) |
| 79072805 | 663 | { |
| 97aff369 | 664 | dVAR; dSP; dPOPss; |
| a0d0e21e LW |
665 | register unsigned char *s; |
| 666 | register I32 pos; | |
| 667 | register I32 ch; | |
| 668 | register I32 *sfirst; | |
| 669 | register I32 *snext; | |
| a0d0e21e LW |
670 | STRLEN len; |
| 671 | ||
| 3280af22 | 672 | if (sv == PL_lastscream) { |
| 1e422769 | 673 | if (SvSCREAM(sv)) |
| 674 | RETPUSHYES; | |
| 675 | } | |
| a4f4e906 NC |
676 | s = (unsigned char*)(SvPV(sv, len)); |
| 677 | pos = len; | |
| c9b9f909 | 678 | if (pos <= 0 || !SvPOK(sv) || SvUTF8(sv)) { |
| a4f4e906 NC |
679 | /* No point in studying a zero length string, and not safe to study |
| 680 | anything that doesn't appear to be a simple scalar (and hence might | |
| 681 | change between now and when the regexp engine runs without our set | |
| bd473224 | 682 | magic ever running) such as a reference to an object with overloaded |
| a4f4e906 NC |
683 | stringification. */ |
| 684 | RETPUSHNO; | |
| 685 | } | |
| 686 | ||
| 687 | if (PL_lastscream) { | |
| 688 | SvSCREAM_off(PL_lastscream); | |
| 689 | SvREFCNT_dec(PL_lastscream); | |
| c07a80fd | 690 | } |
| b37c2d43 | 691 | PL_lastscream = SvREFCNT_inc_simple(sv); |
| 1e422769 | 692 | |
| 693 | s = (unsigned char*)(SvPV(sv, len)); | |
| 694 | pos = len; | |
| 695 | if (pos <= 0) | |
| 696 | RETPUSHNO; | |
| 3280af22 NIS |
697 | if (pos > PL_maxscream) { |
| 698 | if (PL_maxscream < 0) { | |
| 699 | PL_maxscream = pos + 80; | |
| a02a5408 JC |
700 | Newx(PL_screamfirst, 256, I32); |
| 701 | Newx(PL_screamnext, PL_maxscream, I32); | |
| 79072805 LW |
702 | } |
| 703 | else { | |
| 3280af22 NIS |
704 | PL_maxscream = pos + pos / 4; |
| 705 | Renew(PL_screamnext, PL_maxscream, I32); | |
| 79072805 | 706 | } |
| 79072805 | 707 | } |
| a0d0e21e | 708 | |
| 3280af22 NIS |
709 | sfirst = PL_screamfirst; |
| 710 | snext = PL_screamnext; | |
| a0d0e21e LW |
711 | |
| 712 | if (!sfirst || !snext) | |
| cea2e8a9 | 713 | DIE(aTHX_ "do_study: out of memory"); |
| a0d0e21e LW |
714 | |
| 715 | for (ch = 256; ch; --ch) | |
| 716 | *sfirst++ = -1; | |
| 717 | sfirst -= 256; | |
| 718 | ||
| 719 | while (--pos >= 0) { | |
| 1b6737cc | 720 | register const I32 ch = s[pos]; |
| a0d0e21e LW |
721 | if (sfirst[ch] >= 0) |
| 722 | snext[pos] = sfirst[ch] - pos; | |
| 723 | else | |
| 724 | snext[pos] = -pos; | |
| 725 | sfirst[ch] = pos; | |
| 79072805 LW |
726 | } |
| 727 | ||
| c07a80fd | 728 | SvSCREAM_on(sv); |
| 14befaf4 | 729 | /* piggyback on m//g magic */ |
| c445ea15 | 730 | sv_magic(sv, NULL, PERL_MAGIC_regex_global, NULL, 0); |
| 1e422769 | 731 | RETPUSHYES; |
| 79072805 LW |
732 | } |
| 733 | ||
| a0d0e21e | 734 | PP(pp_trans) |
| 79072805 | 735 | { |
| 97aff369 | 736 | dVAR; dSP; dTARG; |
| a0d0e21e LW |
737 | SV *sv; |
| 738 | ||
| 533c011a | 739 | if (PL_op->op_flags & OPf_STACKED) |
| a0d0e21e | 740 | sv = POPs; |
| 59f00321 RGS |
741 | else if (PL_op->op_private & OPpTARGET_MY) |
| 742 | sv = GETTARGET; | |
| 79072805 | 743 | else { |
| 54b9620d | 744 | sv = DEFSV; |
| a0d0e21e | 745 | EXTEND(SP,1); |
| 79072805 | 746 | } |
| adbc6bb1 | 747 | TARG = sv_newmortal(); |
| 4757a243 | 748 | PUSHi(do_trans(sv)); |
| a0d0e21e | 749 | RETURN; |
| 79072805 LW |
750 | } |
| 751 | ||
| a0d0e21e | 752 | /* Lvalue operators. */ |
| 79072805 | 753 | |
| a0d0e21e LW |
754 | PP(pp_schop) |
| 755 | { | |
| 97aff369 | 756 | dVAR; dSP; dTARGET; |
| a0d0e21e LW |
757 | do_chop(TARG, TOPs); |
| 758 | SETTARG; | |
| 759 | RETURN; | |
| 79072805 LW |
760 | } |
| 761 | ||
| a0d0e21e | 762 | PP(pp_chop) |
| 79072805 | 763 | { |
| 97aff369 | 764 | dVAR; dSP; dMARK; dTARGET; dORIGMARK; |
| 2ec6af5f RG |
765 | while (MARK < SP) |
| 766 | do_chop(TARG, *++MARK); | |
| 767 | SP = ORIGMARK; | |
| b59aed67 | 768 | XPUSHTARG; |
| a0d0e21e | 769 | RETURN; |
| 79072805 LW |
770 | } |
| 771 | ||
| a0d0e21e | 772 | PP(pp_schomp) |
| 79072805 | 773 | { |
| 97aff369 | 774 | dVAR; dSP; dTARGET; |
| a0d0e21e LW |
775 | SETi(do_chomp(TOPs)); |
| 776 | RETURN; | |
| 79072805 LW |
777 | } |
| 778 | ||
| a0d0e21e | 779 | PP(pp_chomp) |
| 79072805 | 780 | { |
| 97aff369 | 781 | dVAR; dSP; dMARK; dTARGET; |
| a0d0e21e | 782 | register I32 count = 0; |
| 8ec5e241 | 783 | |
| a0d0e21e LW |
784 | while (SP > MARK) |
| 785 | count += do_chomp(POPs); | |
| b59aed67 | 786 | XPUSHi(count); |
| a0d0e21e | 787 | RETURN; |
| 79072805 LW |
788 | } |
| 789 | ||
| a0d0e21e LW |
790 | PP(pp_undef) |
| 791 | { | |
| 97aff369 | 792 | dVAR; dSP; |
| a0d0e21e LW |
793 | SV *sv; |
| 794 | ||
| 533c011a | 795 | if (!PL_op->op_private) { |
| 774d564b | 796 | EXTEND(SP, 1); |
| a0d0e21e | 797 | RETPUSHUNDEF; |
| 774d564b | 798 | } |
| 79072805 | 799 | |
| a0d0e21e LW |
800 | sv = POPs; |
| 801 | if (!sv) | |
| 802 | RETPUSHUNDEF; | |
| 85e6fe83 | 803 | |
| 765f542d | 804 | SV_CHECK_THINKFIRST_COW_DROP(sv); |
| 85e6fe83 | 805 | |
| a0d0e21e LW |
806 | switch (SvTYPE(sv)) { |
| 807 | case SVt_NULL: | |
| 808 | break; | |
| 809 | case SVt_PVAV: | |
| 502c6561 | 810 | av_undef(MUTABLE_AV(sv)); |
| a0d0e21e LW |
811 | break; |
| 812 | case SVt_PVHV: | |
| 85fbaab2 | 813 | hv_undef(MUTABLE_HV(sv)); |
| a0d0e21e LW |
814 | break; |
| 815 | case SVt_PVCV: | |
| a2a5de95 NC |
816 | if (cv_const_sv((const CV *)sv)) |
| 817 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), "Constant subroutine %s undefined", | |
| 818 | CvANON((const CV *)sv) ? "(anonymous)" | |
| 819 | : GvENAME(CvGV((const CV *)sv))); | |
| 5f66b61c | 820 | /* FALLTHROUGH */ |
| 9607fc9c | 821 | case SVt_PVFM: |
| 6fc92669 GS |
822 | { |
| 823 | /* let user-undef'd sub keep its identity */ | |
| ea726b52 NC |
824 | GV* const gv = CvGV((const CV *)sv); |
| 825 | cv_undef(MUTABLE_CV(sv)); | |
| 826 | CvGV((const CV *)sv) = gv; | |
| 6fc92669 | 827 | } |
| a0d0e21e | 828 | break; |
| 8e07c86e | 829 | case SVt_PVGV: |
| 6e592b3a | 830 | if (SvFAKE(sv)) { |
| 3280af22 | 831 | SvSetMagicSV(sv, &PL_sv_undef); |
| 6e592b3a BM |
832 | break; |
| 833 | } | |
| 834 | else if (isGV_with_GP(sv)) { | |
| 20408e3c | 835 | GP *gp; |
| dd69841b BB |
836 | HV *stash; |
| 837 | ||
| 838 | /* undef *Foo:: */ | |
| 159b6efe | 839 | if((stash = GvHV((const GV *)sv)) && HvNAME_get(stash)) |
| dd69841b BB |
840 | mro_isa_changed_in(stash); |
| 841 | /* undef *Pkg::meth_name ... */ | |
| 159b6efe NC |
842 | else if(GvCVu((const GV *)sv) && (stash = GvSTASH((const GV *)sv)) |
| 843 | && HvNAME_get(stash)) | |
| dd69841b BB |
844 | mro_method_changed_in(stash); |
| 845 | ||
| 159b6efe | 846 | gp_free(MUTABLE_GV(sv)); |
| a02a5408 | 847 | Newxz(gp, 1, GP); |
| 20408e3c | 848 | GvGP(sv) = gp_ref(gp); |
| 561b68a9 | 849 | GvSV(sv) = newSV(0); |
| 57843af0 | 850 | GvLINE(sv) = CopLINE(PL_curcop); |
| 159b6efe | 851 | GvEGV(sv) = MUTABLE_GV(sv); |
| 20408e3c | 852 | GvMULTI_on(sv); |
| 6e592b3a | 853 | break; |
| 20408e3c | 854 | } |
| 6e592b3a | 855 | /* FALL THROUGH */ |
| a0d0e21e | 856 | default: |
| b15aece3 | 857 | if (SvTYPE(sv) >= SVt_PV && SvPVX_const(sv) && SvLEN(sv)) { |
| 8bd4d4c5 | 858 | SvPV_free(sv); |
| c445ea15 | 859 | SvPV_set(sv, NULL); |
| 4633a7c4 | 860 | SvLEN_set(sv, 0); |
| a0d0e21e | 861 | } |
| 0c34ef67 | 862 | SvOK_off(sv); |
| 4633a7c4 | 863 | SvSETMAGIC(sv); |
| 79072805 | 864 | } |
| a0d0e21e LW |
865 | |
| 866 | RETPUSHUNDEF; | |
| 79072805 LW |
867 | } |
| 868 | ||
| a0d0e21e | 869 | PP(pp_predec) |
| 79072805 | 870 | { |
| 97aff369 | 871 | dVAR; dSP; |
| 6e592b3a | 872 | if (SvTYPE(TOPs) >= SVt_PVAV || isGV_with_GP(TOPs)) |
| f1f66076 | 873 | DIE(aTHX_ "%s", PL_no_modify); |
| 3510b4a1 NC |
874 | if (!SvREADONLY(TOPs) && SvIOK_notUV(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) |
| 875 | && SvIVX(TOPs) != IV_MIN) | |
| 55497cff | 876 | { |
| 45977657 | 877 | SvIV_set(TOPs, SvIVX(TOPs) - 1); |
| 55497cff | 878 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
| 748a9306 LW |
879 | } |
| 880 | else | |
| 881 | sv_dec(TOPs); | |
| a0d0e21e LW |
882 | SvSETMAGIC(TOPs); |
| 883 | return NORMAL; | |
| 884 | } | |
| 79072805 | 885 | |
| a0d0e21e LW |
886 | PP(pp_postinc) |
| 887 | { | |
| 97aff369 | 888 | dVAR; dSP; dTARGET; |
| 6e592b3a | 889 | if (SvTYPE(TOPs) >= SVt_PVAV || isGV_with_GP(TOPs)) |
| f1f66076 | 890 | DIE(aTHX_ "%s", PL_no_modify); |
| a0d0e21e | 891 | sv_setsv(TARG, TOPs); |
| 3510b4a1 NC |
892 | if (!SvREADONLY(TOPs) && SvIOK_notUV(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) |
| 893 | && SvIVX(TOPs) != IV_MAX) | |
| 55497cff | 894 | { |
| 45977657 | 895 | SvIV_set(TOPs, SvIVX(TOPs) + 1); |
| 55497cff | 896 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
| 748a9306 LW |
897 | } |
| 898 | else | |
| 899 | sv_inc(TOPs); | |
| a0d0e21e | 900 | SvSETMAGIC(TOPs); |
| 1e54a23f | 901 | /* special case for undef: see thread at 2003-03/msg00536.html in archive */ |
| a0d0e21e LW |
902 | if (!SvOK(TARG)) |
| 903 | sv_setiv(TARG, 0); | |
| 904 | SETs(TARG); | |
| 905 | return NORMAL; | |
| 906 | } | |
| 79072805 | 907 | |
| a0d0e21e LW |
908 | PP(pp_postdec) |
| 909 | { | |
| 97aff369 | 910 | dVAR; dSP; dTARGET; |
| 6e592b3a | 911 | if (SvTYPE(TOPs) >= SVt_PVAV || isGV_with_GP(TOPs)) |
| f1f66076 | 912 | DIE(aTHX_ "%s", PL_no_modify); |
| a0d0e21e | 913 | sv_setsv(TARG, TOPs); |
| 3510b4a1 NC |
914 | if (!SvREADONLY(TOPs) && SvIOK_notUV(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) |
| 915 | && SvIVX(TOPs) != IV_MIN) | |
| 55497cff | 916 | { |
| 45977657 | 917 | SvIV_set(TOPs, SvIVX(TOPs) - 1); |
| 55497cff | 918 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
| 748a9306 LW |
919 | } |
| 920 | else | |
| 921 | sv_dec(TOPs); | |
| a0d0e21e LW |
922 | SvSETMAGIC(TOPs); |
| 923 | SETs(TARG); | |
| 924 | return NORMAL; | |
| 925 | } | |
| 79072805 | 926 | |
| a0d0e21e LW |
927 | /* Ordinary operators. */ |
| 928 | ||
| 929 | PP(pp_pow) | |
| 930 | { | |
| 800401ee | 931 | dVAR; dSP; dATARGET; SV *svl, *svr; |
| 58d76dfd | 932 | #ifdef PERL_PRESERVE_IVUV |
| 52a96ae6 HS |
933 | bool is_int = 0; |
| 934 | #endif | |
| 935 | tryAMAGICbin(pow,opASSIGN); | |
| 800401ee JH |
936 | svl = sv_2num(TOPm1s); |
| 937 | svr = sv_2num(TOPs); | |
| 52a96ae6 HS |
938 | #ifdef PERL_PRESERVE_IVUV |
| 939 | /* For integer to integer power, we do the calculation by hand wherever | |
| 940 | we're sure it is safe; otherwise we call pow() and try to convert to | |
| 941 | integer afterwards. */ | |
| 58d76dfd | 942 | { |
| 800401ee JH |
943 | SvIV_please(svr); |
| 944 | if (SvIOK(svr)) { | |
| 945 | SvIV_please(svl); | |
| 946 | if (SvIOK(svl)) { | |
| 900658e3 PF |
947 | UV power; |
| 948 | bool baseuok; | |
| 949 | UV baseuv; | |
| 950 | ||
| 800401ee JH |
951 | if (SvUOK(svr)) { |
| 952 | power = SvUVX(svr); | |
| 900658e3 | 953 | } else { |
| 800401ee | 954 | const IV iv = SvIVX(svr); |
| 900658e3 PF |
955 | if (iv >= 0) { |
| 956 | power = iv; | |
| 957 | } else { | |
| 958 | goto float_it; /* Can't do negative powers this way. */ | |
| 959 | } | |
| 960 | } | |
| 961 | ||
| 800401ee | 962 | baseuok = SvUOK(svl); |
| 900658e3 | 963 | if (baseuok) { |
| 800401ee | 964 | baseuv = SvUVX(svl); |
| 900658e3 | 965 | } else { |
| 800401ee | 966 | const IV iv = SvIVX(svl); |
| 900658e3 PF |
967 | if (iv >= 0) { |
| 968 | baseuv = iv; | |
| 969 | baseuok = TRUE; /* effectively it's a UV now */ | |
| 970 | } else { | |
| 971 | baseuv = -iv; /* abs, baseuok == false records sign */ | |
| 972 | } | |
| 973 | } | |
| 52a96ae6 HS |
974 | /* now we have integer ** positive integer. */ |
| 975 | is_int = 1; | |
| 976 | ||
| 977 | /* foo & (foo - 1) is zero only for a power of 2. */ | |
| 58d76dfd | 978 | if (!(baseuv & (baseuv - 1))) { |
| 52a96ae6 | 979 | /* We are raising power-of-2 to a positive integer. |
| 58d76dfd JH |
980 | The logic here will work for any base (even non-integer |
| 981 | bases) but it can be less accurate than | |
| 982 | pow (base,power) or exp (power * log (base)) when the | |
| 983 | intermediate values start to spill out of the mantissa. | |
| 984 | With powers of 2 we know this can't happen. | |
| 985 | And powers of 2 are the favourite thing for perl | |
| 986 | programmers to notice ** not doing what they mean. */ | |
| 987 | NV result = 1.0; | |
| 988 | NV base = baseuok ? baseuv : -(NV)baseuv; | |
| 900658e3 PF |
989 | |
| 990 | if (power & 1) { | |
| 991 | result *= base; | |
| 992 | } | |
| 993 | while (power >>= 1) { | |
| 994 | base *= base; | |
| 995 | if (power & 1) { | |
| 996 | result *= base; | |
| 997 | } | |
| 998 | } | |
| 58d76dfd JH |
999 | SP--; |
| 1000 | SETn( result ); | |
| 800401ee | 1001 | SvIV_please(svr); |
| 58d76dfd | 1002 | RETURN; |
| 52a96ae6 HS |
1003 | } else { |
| 1004 | register unsigned int highbit = 8 * sizeof(UV); | |
| 900658e3 PF |
1005 | register unsigned int diff = 8 * sizeof(UV); |
| 1006 | while (diff >>= 1) { | |
| 1007 | highbit -= diff; | |
| 1008 | if (baseuv >> highbit) { | |
| 1009 | highbit += diff; | |
| 1010 | } | |
| 52a96ae6 HS |
1011 | } |
| 1012 | /* we now have baseuv < 2 ** highbit */ | |
| 1013 | if (power * highbit <= 8 * sizeof(UV)) { | |
| 1014 | /* result will definitely fit in UV, so use UV math | |
| 1015 | on same algorithm as above */ | |
| 1016 | register UV result = 1; | |
| 1017 | register UV base = baseuv; | |
| 900658e3 PF |
1018 | const bool odd_power = (bool)(power & 1); |
| 1019 | if (odd_power) { | |
| 1020 | result *= base; | |
| 1021 | } | |
| 1022 | while (power >>= 1) { | |
| 1023 | base *= base; | |
| 1024 | if (power & 1) { | |
| 52a96ae6 | 1025 | result *= base; |
| 52a96ae6 HS |
1026 | } |
| 1027 | } | |
| 1028 | SP--; | |
| 0615a994 | 1029 | if (baseuok || !odd_power) |
| 52a96ae6 HS |
1030 | /* answer is positive */ |
| 1031 | SETu( result ); | |
| 1032 | else if (result <= (UV)IV_MAX) | |
| 1033 | /* answer negative, fits in IV */ | |
| 1034 | SETi( -(IV)result ); | |
| 1035 | else if (result == (UV)IV_MIN) | |
| 1036 | /* 2's complement assumption: special case IV_MIN */ | |
| 1037 | SETi( IV_MIN ); | |
| 1038 | else | |
| 1039 | /* answer negative, doesn't fit */ | |
| 1040 | SETn( -(NV)result ); | |
| 1041 | RETURN; | |
| 1042 | } | |
| 1043 | } | |
| 1044 | } | |
| 1045 | } | |
| 58d76dfd | 1046 | } |
| 52a96ae6 | 1047 | float_it: |
| 58d76dfd | 1048 | #endif |
| a0d0e21e | 1049 | { |
| 4efa5a16 RD |
1050 | NV right = SvNV(svr); |
| 1051 | NV left = SvNV(svl); | |
| 1052 | (void)POPs; | |
| 3aaeb624 JA |
1053 | |
| 1054 | #if defined(USE_LONG_DOUBLE) && defined(HAS_AIX_POWL_NEG_BASE_BUG) | |
| 1055 | /* | |
| 1056 | We are building perl with long double support and are on an AIX OS | |
| 1057 | afflicted with a powl() function that wrongly returns NaNQ for any | |
| 1058 | negative base. This was reported to IBM as PMR #23047-379 on | |
| 1059 | 03/06/2006. The problem exists in at least the following versions | |
| 1060 | of AIX and the libm fileset, and no doubt others as well: | |
| 1061 | ||
| 1062 | AIX 4.3.3-ML10 bos.adt.libm 4.3.3.50 | |
| 1063 | AIX 5.1.0-ML04 bos.adt.libm 5.1.0.29 | |
| 1064 | AIX 5.2.0 bos.adt.libm 5.2.0.85 | |
| 1065 | ||
| 1066 | So, until IBM fixes powl(), we provide the following workaround to | |
| 1067 | handle the problem ourselves. Our logic is as follows: for | |
| 1068 | negative bases (left), we use fmod(right, 2) to check if the | |
| 1069 | exponent is an odd or even integer: | |
| 1070 | ||
| 1071 | - if odd, powl(left, right) == -powl(-left, right) | |
| 1072 | - if even, powl(left, right) == powl(-left, right) | |
| 1073 | ||
| 1074 | If the exponent is not an integer, the result is rightly NaNQ, so | |
| 1075 | we just return that (as NV_NAN). | |
| 1076 | */ | |
| 1077 | ||
| 1078 | if (left < 0.0) { | |
| 1079 | NV mod2 = Perl_fmod( right, 2.0 ); | |
| 1080 | if (mod2 == 1.0 || mod2 == -1.0) { /* odd integer */ | |
| 1081 | SETn( -Perl_pow( -left, right) ); | |
| 1082 | } else if (mod2 == 0.0) { /* even integer */ | |
| 1083 | SETn( Perl_pow( -left, right) ); | |
| 1084 | } else { /* fractional power */ | |
| 1085 | SETn( NV_NAN ); | |
| 1086 | } | |
| 1087 | } else { | |
| 1088 | SETn( Perl_pow( left, right) ); | |
| 1089 | } | |
| 1090 | #else | |
| 52a96ae6 | 1091 | SETn( Perl_pow( left, right) ); |
| 3aaeb624 JA |
1092 | #endif /* HAS_AIX_POWL_NEG_BASE_BUG */ |
| 1093 | ||
| 52a96ae6 HS |
1094 | #ifdef PERL_PRESERVE_IVUV |
| 1095 | if (is_int) | |
| 800401ee | 1096 | SvIV_please(svr); |
| 52a96ae6 HS |
1097 | #endif |
| 1098 | RETURN; | |
| 93a17b20 | 1099 | } |
| a0d0e21e LW |
1100 | } |
| 1101 | ||
| 1102 | PP(pp_multiply) | |
| 1103 | { | |
| 800401ee JH |
1104 | dVAR; dSP; dATARGET; SV *svl, *svr; |
| 1105 | tryAMAGICbin(mult,opASSIGN); | |
| 1106 | svl = sv_2num(TOPm1s); | |
| 1107 | svr = sv_2num(TOPs); | |
| 28e5dec8 | 1108 | #ifdef PERL_PRESERVE_IVUV |
| 800401ee JH |
1109 | SvIV_please(svr); |
| 1110 | if (SvIOK(svr)) { | |
| 28e5dec8 JH |
1111 | /* Unless the left argument is integer in range we are going to have to |
| 1112 | use NV maths. Hence only attempt to coerce the right argument if | |
| 1113 | we know the left is integer. */ | |
| 1114 | /* Left operand is defined, so is it IV? */ | |
| 800401ee JH |
1115 | SvIV_please(svl); |
| 1116 | if (SvIOK(svl)) { | |
| 1117 | bool auvok = SvUOK(svl); | |
| 1118 | bool buvok = SvUOK(svr); | |
| 28e5dec8 JH |
1119 | const UV topmask = (~ (UV)0) << (4 * sizeof (UV)); |
| 1120 | const UV botmask = ~((~ (UV)0) << (4 * sizeof (UV))); | |
| 1121 | UV alow; | |
| 1122 | UV ahigh; | |
| 1123 | UV blow; | |
| 1124 | UV bhigh; | |
| 1125 | ||
| 1126 | if (auvok) { | |
| 800401ee | 1127 | alow = SvUVX(svl); |
| 28e5dec8 | 1128 | } else { |
| 800401ee | 1129 | const IV aiv = SvIVX(svl); |
| 28e5dec8 JH |
1130 | if (aiv >= 0) { |
| 1131 | alow = aiv; | |
| 1132 | auvok = TRUE; /* effectively it's a UV now */ | |
| 1133 | } else { | |
| 1134 | alow = -aiv; /* abs, auvok == false records sign */ | |
| 1135 | } | |
| 1136 | } | |
| 1137 | if (buvok) { | |
| 800401ee | 1138 | blow = SvUVX(svr); |
| 28e5dec8 | 1139 | } else { |
| 800401ee | 1140 | const IV biv = SvIVX(svr); |
| 28e5dec8 JH |
1141 | if (biv >= 0) { |
| 1142 | blow = biv; | |
| 1143 | buvok = TRUE; /* effectively it's a UV now */ | |
| 1144 | } else { | |
| 1145 | blow = -biv; /* abs, buvok == false records sign */ | |
| 1146 | } | |
| 1147 | } | |
| 1148 | ||
| 1149 | /* If this does sign extension on unsigned it's time for plan B */ | |
| 1150 | ahigh = alow >> (4 * sizeof (UV)); | |
| 1151 | alow &= botmask; | |
| 1152 | bhigh = blow >> (4 * sizeof (UV)); | |
| 1153 | blow &= botmask; | |
| 1154 | if (ahigh && bhigh) { | |
| 6f207bd3 | 1155 | NOOP; |
| 28e5dec8 JH |
1156 | /* eg 32 bit is at least 0x10000 * 0x10000 == 0x100000000 |
| 1157 | which is overflow. Drop to NVs below. */ | |
| 1158 | } else if (!ahigh && !bhigh) { | |
| 1159 | /* eg 32 bit is at most 0xFFFF * 0xFFFF == 0xFFFE0001 | |
| 1160 | so the unsigned multiply cannot overflow. */ | |
| c445ea15 | 1161 | const UV product = alow * blow; |
| 28e5dec8 JH |
1162 | if (auvok == buvok) { |
| 1163 | /* -ve * -ve or +ve * +ve gives a +ve result. */ | |
| 1164 | SP--; | |
| 1165 | SETu( product ); | |
| 1166 | RETURN; | |
| 1167 | } else if (product <= (UV)IV_MIN) { | |
| 1168 | /* 2s complement assumption that (UV)-IV_MIN is correct. */ | |
| 1169 | /* -ve result, which could overflow an IV */ | |
| 1170 | SP--; | |
| 25716404 | 1171 | SETi( -(IV)product ); |
| 28e5dec8 JH |
1172 | RETURN; |
| 1173 | } /* else drop to NVs below. */ | |
| 1174 | } else { | |
| 1175 | /* One operand is large, 1 small */ | |
| 1176 | UV product_middle; | |
| 1177 | if (bhigh) { | |
| 1178 | /* swap the operands */ | |
| 1179 | ahigh = bhigh; | |
| 1180 | bhigh = blow; /* bhigh now the temp var for the swap */ | |
| 1181 | blow = alow; | |
| 1182 | alow = bhigh; | |
| 1183 | } | |
| 1184 | /* now, ((ahigh * blow) << half_UV_len) + (alow * blow) | |
| 1185 | multiplies can't overflow. shift can, add can, -ve can. */ | |
| 1186 | product_middle = ahigh * blow; | |
| 1187 | if (!(product_middle & topmask)) { | |
| 1188 | /* OK, (ahigh * blow) won't lose bits when we shift it. */ | |
| 1189 | UV product_low; | |
| 1190 | product_middle <<= (4 * sizeof (UV)); | |
| 1191 | product_low = alow * blow; | |
| 1192 | ||
| 1193 | /* as for pp_add, UV + something mustn't get smaller. | |
| 1194 | IIRC ANSI mandates this wrapping *behaviour* for | |
| 1195 | unsigned whatever the actual representation*/ | |
| 1196 | product_low += product_middle; | |
| 1197 | if (product_low >= product_middle) { | |
| 1198 | /* didn't overflow */ | |
| 1199 | if (auvok == buvok) { | |
| 1200 | /* -ve * -ve or +ve * +ve gives a +ve result. */ | |
| 1201 | SP--; | |
| 1202 | SETu( product_low ); | |
| 1203 | RETURN; | |
| 1204 | } else if (product_low <= (UV)IV_MIN) { | |
| 1205 | /* 2s complement assumption again */ | |
| 1206 | /* -ve result, which could overflow an IV */ | |
| 1207 | SP--; | |
| 25716404 | 1208 | SETi( -(IV)product_low ); |
| 28e5dec8 JH |
1209 | RETURN; |
| 1210 | } /* else drop to NVs below. */ | |
| 1211 | } | |
| 1212 | } /* product_middle too large */ | |
| 1213 | } /* ahigh && bhigh */ | |
| 800401ee JH |
1214 | } /* SvIOK(svl) */ |
| 1215 | } /* SvIOK(svr) */ | |
| 28e5dec8 | 1216 | #endif |
| a0d0e21e | 1217 | { |
| 4efa5a16 RD |
1218 | NV right = SvNV(svr); |
| 1219 | NV left = SvNV(svl); | |
| 1220 | (void)POPs; | |
| a0d0e21e LW |
1221 | SETn( left * right ); |
| 1222 | RETURN; | |
| 79072805 | 1223 | } |
| a0d0e21e LW |
1224 | } |
| 1225 | ||
| 1226 | PP(pp_divide) | |
| 1227 | { | |
| 800401ee JH |
1228 | dVAR; dSP; dATARGET; SV *svl, *svr; |
| 1229 | tryAMAGICbin(div,opASSIGN); | |
| 1230 | svl = sv_2num(TOPm1s); | |
| 1231 | svr = sv_2num(TOPs); | |
| 5479d192 | 1232 | /* Only try to do UV divide first |
| 68795e93 | 1233 | if ((SLOPPYDIVIDE is true) or |
| 5479d192 NC |
1234 | (PERL_PRESERVE_IVUV is true and one or both SV is a UV too large |
| 1235 | to preserve)) | |
| 1236 | The assumption is that it is better to use floating point divide | |
| 1237 | whenever possible, only doing integer divide first if we can't be sure. | |
| 1238 | If NV_PRESERVES_UV is true then we know at compile time that no UV | |
| 1239 | can be too large to preserve, so don't need to compile the code to | |
| 1240 | test the size of UVs. */ | |
| 1241 | ||
| a0d0e21e | 1242 | #ifdef SLOPPYDIVIDE |
| 5479d192 NC |
1243 | # define PERL_TRY_UV_DIVIDE |
| 1244 | /* ensure that 20./5. == 4. */ | |
| a0d0e21e | 1245 | #else |
| 5479d192 NC |
1246 | # ifdef PERL_PRESERVE_IVUV |
| 1247 | # ifndef NV_PRESERVES_UV | |
| 1248 | # define PERL_TRY_UV_DIVIDE | |
| 1249 | # endif | |
| 1250 | # endif | |
| a0d0e21e | 1251 | #endif |
| 5479d192 NC |
1252 | |
| 1253 | #ifdef PERL_TRY_UV_DIVIDE | |
| 800401ee JH |
1254 | SvIV_please(svr); |
| 1255 | if (SvIOK(svr)) { | |
| 1256 | SvIV_please(svl); | |
| 1257 | if (SvIOK(svl)) { | |
| 1258 | bool left_non_neg = SvUOK(svl); | |
| 1259 | bool right_non_neg = SvUOK(svr); | |
| 5479d192 NC |
1260 | UV left; |
| 1261 | UV right; | |
| 1262 | ||
| 1263 | if (right_non_neg) { | |
| 800401ee | 1264 | right = SvUVX(svr); |
| 5479d192 NC |
1265 | } |
| 1266 | else { | |
| 800401ee | 1267 | const IV biv = SvIVX(svr); |
| 5479d192 NC |
1268 | if (biv >= 0) { |
| 1269 | right = biv; | |
| 1270 | right_non_neg = TRUE; /* effectively it's a UV now */ | |
| 1271 | } | |
| 1272 | else { | |
| 1273 | right = -biv; | |
| 1274 | } | |
| 1275 | } | |
| 1276 | /* historically undef()/0 gives a "Use of uninitialized value" | |
| 1277 | warning before dieing, hence this test goes here. | |
| 1278 | If it were immediately before the second SvIV_please, then | |
| 1279 | DIE() would be invoked before left was even inspected, so | |
| 1280 | no inpsection would give no warning. */ | |
| 1281 | if (right == 0) | |
| 1282 | DIE(aTHX_ "Illegal division by zero"); | |
| 1283 | ||
| 1284 | if (left_non_neg) { | |
| 800401ee | 1285 | left = SvUVX(svl); |
| 5479d192 NC |
1286 | } |
| 1287 | else { | |
| 800401ee | 1288 | const IV aiv = SvIVX(svl); |
| 5479d192 NC |
1289 | if (aiv >= 0) { |
| 1290 | left = aiv; | |
| 1291 | left_non_neg = TRUE; /* effectively it's a UV now */ | |
| 1292 | } | |
| 1293 | else { | |
| 1294 | left = -aiv; | |
| 1295 | } | |
| 1296 | } | |
| 1297 | ||
| 1298 | if (left >= right | |
| 1299 | #ifdef SLOPPYDIVIDE | |
| 1300 | /* For sloppy divide we always attempt integer division. */ | |
| 1301 | #else | |
| 1302 | /* Otherwise we only attempt it if either or both operands | |
| 1303 | would not be preserved by an NV. If both fit in NVs | |
| 0c2ee62a NC |
1304 | we fall through to the NV divide code below. However, |
| 1305 | as left >= right to ensure integer result here, we know that | |
| 1306 | we can skip the test on the right operand - right big | |
| 1307 | enough not to be preserved can't get here unless left is | |
| 1308 | also too big. */ | |
| 1309 | ||
| 1310 | && (left > ((UV)1 << NV_PRESERVES_UV_BITS)) | |
| 5479d192 NC |
1311 | #endif |
| 1312 | ) { | |
| 1313 | /* Integer division can't overflow, but it can be imprecise. */ | |
| 1b6737cc | 1314 | const UV result = left / right; |
| 5479d192 NC |
1315 | if (result * right == left) { |
| 1316 | SP--; /* result is valid */ | |
| 1317 | if (left_non_neg == right_non_neg) { | |
| 1318 | /* signs identical, result is positive. */ | |
| 1319 | SETu( result ); | |
| 1320 | RETURN; | |
| 1321 | } | |
| 1322 | /* 2s complement assumption */ | |
| 1323 | if (result <= (UV)IV_MIN) | |
| 91f3b821 | 1324 | SETi( -(IV)result ); |
| 5479d192 NC |
1325 | else { |
| 1326 | /* It's exact but too negative for IV. */ | |
| 1327 | SETn( -(NV)result ); | |
| 1328 | } | |
| 1329 | RETURN; | |
| 1330 | } /* tried integer divide but it was not an integer result */ | |
| 32fdb065 | 1331 | } /* else (PERL_ABS(result) < 1.0) or (both UVs in range for NV) */ |
| 5479d192 NC |
1332 | } /* left wasn't SvIOK */ |
| 1333 | } /* right wasn't SvIOK */ | |
| 1334 | #endif /* PERL_TRY_UV_DIVIDE */ | |
| 1335 | { | |
| 4efa5a16 RD |
1336 | NV right = SvNV(svr); |
| 1337 | NV left = SvNV(svl); | |
| 1338 | (void)POPs;(void)POPs; | |
| ebc6a117 PD |
1339 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
| 1340 | if (! Perl_isnan(right) && right == 0.0) | |
| 1341 | #else | |
| 5479d192 | 1342 | if (right == 0.0) |
| ebc6a117 | 1343 | #endif |
| 5479d192 NC |
1344 | DIE(aTHX_ "Illegal division by zero"); |
| 1345 | PUSHn( left / right ); | |
| 1346 | RETURN; | |
| 79072805 | 1347 | } |
| a0d0e21e LW |
1348 | } |
| 1349 | ||
| 1350 | PP(pp_modulo) | |
| 1351 | { | |
| 97aff369 | 1352 | dVAR; dSP; dATARGET; tryAMAGICbin(modulo,opASSIGN); |
| a0d0e21e | 1353 | { |
| 9c5ffd7c JH |
1354 | UV left = 0; |
| 1355 | UV right = 0; | |
| dc656993 JH |
1356 | bool left_neg = FALSE; |
| 1357 | bool right_neg = FALSE; | |
| e2c88acc NC |
1358 | bool use_double = FALSE; |
| 1359 | bool dright_valid = FALSE; | |
| 9c5ffd7c JH |
1360 | NV dright = 0.0; |
| 1361 | NV dleft = 0.0; | |
| 800401ee JH |
1362 | SV * svl; |
| 1363 | SV * const svr = sv_2num(TOPs); | |
| 1364 | SvIV_please(svr); | |
| 1365 | if (SvIOK(svr)) { | |
| 1366 | right_neg = !SvUOK(svr); | |
| e2c88acc | 1367 | if (!right_neg) { |
| 800401ee | 1368 | right = SvUVX(svr); |
| e2c88acc | 1369 | } else { |
| 800401ee | 1370 | const IV biv = SvIVX(svr); |
| e2c88acc NC |
1371 | if (biv >= 0) { |
| 1372 | right = biv; | |
| 1373 | right_neg = FALSE; /* effectively it's a UV now */ | |
| 1374 | } else { | |
| 1375 | right = -biv; | |
| 1376 | } | |
| 1377 | } | |
| 1378 | } | |
| 1379 | else { | |
| 4efa5a16 | 1380 | dright = SvNV(svr); |
| 787eafbd IZ |
1381 | right_neg = dright < 0; |
| 1382 | if (right_neg) | |
| 1383 | dright = -dright; | |
| e2c88acc NC |
1384 | if (dright < UV_MAX_P1) { |
| 1385 | right = U_V(dright); | |
| 1386 | dright_valid = TRUE; /* In case we need to use double below. */ | |
| 1387 | } else { | |
| 1388 | use_double = TRUE; | |
| 1389 | } | |
| 787eafbd | 1390 | } |
| 4efa5a16 | 1391 | sp--; |
| a0d0e21e | 1392 | |
| e2c88acc NC |
1393 | /* At this point use_double is only true if right is out of range for |
| 1394 | a UV. In range NV has been rounded down to nearest UV and | |
| 1395 | use_double false. */ | |
| 800401ee JH |
1396 | svl = sv_2num(TOPs); |
| 1397 | SvIV_please(svl); | |
| 1398 | if (!use_double && SvIOK(svl)) { | |
| 1399 | if (SvIOK(svl)) { | |
| 1400 | left_neg = !SvUOK(svl); | |
| e2c88acc | 1401 | if (!left_neg) { |
| 800401ee | 1402 | left = SvUVX(svl); |
| e2c88acc | 1403 | } else { |
| 800401ee | 1404 | const IV aiv = SvIVX(svl); |
| e2c88acc NC |
1405 | if (aiv >= 0) { |
| 1406 | left = aiv; | |
| 1407 | left_neg = FALSE; /* effectively it's a UV now */ | |
| 1408 | } else { | |
| 1409 | left = -aiv; | |
| 1410 | } | |
| 1411 | } | |
| 1412 | } | |
| 1413 | } | |
| 787eafbd | 1414 | else { |
| 4efa5a16 | 1415 | dleft = SvNV(svl); |
| 787eafbd IZ |
1416 | left_neg = dleft < 0; |
| 1417 | if (left_neg) | |
| 1418 | dleft = -dleft; | |
| 68dc0745 | 1419 | |
| e2c88acc NC |
1420 | /* This should be exactly the 5.6 behaviour - if left and right are |
| 1421 | both in range for UV then use U_V() rather than floor. */ | |
| 1422 | if (!use_double) { | |
| 1423 | if (dleft < UV_MAX_P1) { | |
| 1424 | /* right was in range, so is dleft, so use UVs not double. | |
| 1425 | */ | |
| 1426 | left = U_V(dleft); | |
| 1427 | } | |
| 1428 | /* left is out of range for UV, right was in range, so promote | |
| 1429 | right (back) to double. */ | |
| 1430 | else { | |
| 1431 | /* The +0.5 is used in 5.6 even though it is not strictly | |
| 1432 | consistent with the implicit +0 floor in the U_V() | |
| 1433 | inside the #if 1. */ | |
| 1434 | dleft = Perl_floor(dleft + 0.5); | |
| 1435 | use_double = TRUE; | |
| 1436 | if (dright_valid) | |
| 1437 | dright = Perl_floor(dright + 0.5); | |
| 1438 | else | |
| 1439 | dright = right; | |
| 1440 | } | |
| 1441 | } | |
| 1442 | } | |
| 4efa5a16 | 1443 | sp--; |
| 787eafbd | 1444 | if (use_double) { |
| 65202027 | 1445 | NV dans; |
| 787eafbd | 1446 | |
| 787eafbd | 1447 | if (!dright) |
| cea2e8a9 | 1448 | DIE(aTHX_ "Illegal modulus zero"); |
| 787eafbd | 1449 | |
| 65202027 | 1450 | dans = Perl_fmod(dleft, dright); |
| 787eafbd IZ |
1451 | if ((left_neg != right_neg) && dans) |
| 1452 | dans = dright - dans; | |
| 1453 | if (right_neg) | |
| 1454 | dans = -dans; | |
| 1455 | sv_setnv(TARG, dans); | |
| 1456 | } | |
| 1457 | else { | |
| 1458 | UV ans; | |
| 1459 | ||
| 787eafbd | 1460 | if (!right) |
| cea2e8a9 | 1461 | DIE(aTHX_ "Illegal modulus zero"); |
| 787eafbd IZ |
1462 | |
| 1463 | ans = left % right; | |
| 1464 | if ((left_neg != right_neg) && ans) | |
| 1465 | ans = right - ans; | |
| 1466 | if (right_neg) { | |
| 1467 | /* XXX may warn: unary minus operator applied to unsigned type */ | |
| 1468 | /* could change -foo to be (~foo)+1 instead */ | |
| 1469 | if (ans <= ~((UV)IV_MAX)+1) | |
| 1470 | sv_setiv(TARG, ~ans+1); | |
| 1471 | else | |
| 65202027 | 1472 | sv_setnv(TARG, -(NV)ans); |
| 787eafbd IZ |
1473 | } |
| 1474 | else | |
| 1475 | sv_setuv(TARG, ans); | |
| 1476 | } | |
| 1477 | PUSHTARG; | |
| 1478 | RETURN; | |
| 79072805 | 1479 | } |
| a0d0e21e | 1480 | } |
| 79072805 | 1481 | |
| a0d0e21e LW |
1482 | PP(pp_repeat) |
| 1483 | { | |
| 97aff369 | 1484 | dVAR; dSP; dATARGET; tryAMAGICbin(repeat,opASSIGN); |
| 748a9306 | 1485 | { |
| 2b573ace JH |
1486 | register IV count; |
| 1487 | dPOPss; | |
| 5b295bef | 1488 | SvGETMAGIC(sv); |
| 2b573ace JH |
1489 | if (SvIOKp(sv)) { |
| 1490 | if (SvUOK(sv)) { | |
| 1b6737cc | 1491 | const UV uv = SvUV(sv); |
| 2b573ace JH |
1492 | if (uv > IV_MAX) |
| 1493 | count = IV_MAX; /* The best we can do? */ | |
| 1494 | else | |
| 1495 | count = uv; | |
| 1496 | } else { | |
| 0bd48802 | 1497 | const IV iv = SvIV(sv); |
| 2b573ace JH |
1498 | if (iv < 0) |
| 1499 | count = 0; | |
| 1500 | else | |
| 1501 | count = iv; | |
| 1502 | } | |
| 1503 | } | |
| 1504 | else if (SvNOKp(sv)) { | |
| 1b6737cc | 1505 | const NV nv = SvNV(sv); |
| 2b573ace JH |
1506 | if (nv < 0.0) |
| 1507 | count = 0; | |
| 1508 | else | |
| 1509 | count = (IV)nv; | |
| 1510 | } | |
| 1511 | else | |
| 4ea561bc | 1512 | count = SvIV(sv); |
| 533c011a | 1513 | if (GIMME == G_ARRAY && PL_op->op_private & OPpREPEAT_DOLIST) { |
| a0d0e21e | 1514 | dMARK; |
| 0bd48802 AL |
1515 | static const char oom_list_extend[] = "Out of memory during list extend"; |
| 1516 | const I32 items = SP - MARK; | |
| 1517 | const I32 max = items * count; | |
| 79072805 | 1518 | |
| 2b573ace JH |
1519 | MEM_WRAP_CHECK_1(max, SV*, oom_list_extend); |
| 1520 | /* Did the max computation overflow? */ | |
| 27d5b266 | 1521 | if (items > 0 && max > 0 && (max < items || max < count)) |
| 2b573ace | 1522 | Perl_croak(aTHX_ oom_list_extend); |
| a0d0e21e LW |
1523 | MEXTEND(MARK, max); |
| 1524 | if (count > 1) { | |
| 1525 | while (SP > MARK) { | |
| 976c8a39 JH |
1526 | #if 0 |
| 1527 | /* This code was intended to fix 20010809.028: | |
| 1528 | ||
| 1529 | $x = 'abcd'; | |
| 1530 | for (($x =~ /./g) x 2) { | |
| 1531 | print chop; # "abcdabcd" expected as output. | |
| 1532 | } | |
| 1533 | ||
| 1534 | * but that change (#11635) broke this code: | |
| 1535 | ||
| 1536 | $x = [("foo")x2]; # only one "foo" ended up in the anonlist. | |
| 1537 | ||
| 1538 | * I can't think of a better fix that doesn't introduce | |
| 1539 | * an efficiency hit by copying the SVs. The stack isn't | |
| 1540 | * refcounted, and mortalisation obviously doesn't | |
| 1541 | * Do The Right Thing when the stack has more than | |
| 1542 | * one pointer to the same mortal value. | |
| 1543 | * .robin. | |
| 1544 | */ | |
| e30acc16 RH |
1545 | if (*SP) { |
| 1546 | *SP = sv_2mortal(newSVsv(*SP)); | |
| 1547 | SvREADONLY_on(*SP); | |
| 1548 | } | |
| 976c8a39 JH |
1549 | #else |
| 1550 | if (*SP) | |
| 1551 | SvTEMP_off((*SP)); | |
| 1552 | #endif | |
| a0d0e21e | 1553 | SP--; |
| 79072805 | 1554 | } |
| a0d0e21e LW |
1555 | MARK++; |
| 1556 | repeatcpy((char*)(MARK + items), (char*)MARK, | |
| ad64d0ec | 1557 | items * sizeof(const SV *), count - 1); |
| a0d0e21e | 1558 | SP += max; |
| 79072805 | 1559 | } |
| a0d0e21e LW |
1560 | else if (count <= 0) |
| 1561 | SP -= items; | |
| 79072805 | 1562 | } |
| a0d0e21e | 1563 | else { /* Note: mark already snarfed by pp_list */ |
| 0bd48802 | 1564 | SV * const tmpstr = POPs; |
| a0d0e21e | 1565 | STRLEN len; |
| 9b877dbb | 1566 | bool isutf; |
| 2b573ace JH |
1567 | static const char oom_string_extend[] = |
| 1568 | "Out of memory during string extend"; | |
| a0d0e21e | 1569 | |
| a0d0e21e LW |
1570 | SvSetSV(TARG, tmpstr); |
| 1571 | SvPV_force(TARG, len); | |
| 9b877dbb | 1572 | isutf = DO_UTF8(TARG); |
| 8ebc5c01 | 1573 | if (count != 1) { |
| 1574 | if (count < 1) | |
| 1575 | SvCUR_set(TARG, 0); | |
| 1576 | else { | |
| c445ea15 | 1577 | const STRLEN max = (UV)count * len; |
| 19a94d75 | 1578 | if (len > MEM_SIZE_MAX / count) |
| 2b573ace JH |
1579 | Perl_croak(aTHX_ oom_string_extend); |
| 1580 | MEM_WRAP_CHECK_1(max, char, oom_string_extend); | |
| 8569b9dc | 1581 | SvGROW(TARG, max + 1); |
| a0d0e21e | 1582 | repeatcpy(SvPVX(TARG) + len, SvPVX(TARG), len, count - 1); |
| b162af07 | 1583 | SvCUR_set(TARG, SvCUR(TARG) * count); |
| 7a4c00b4 | 1584 | } |
| a0d0e21e | 1585 | *SvEND(TARG) = '\0'; |
| a0d0e21e | 1586 | } |
| dfcb284a GS |
1587 | if (isutf) |
| 1588 | (void)SvPOK_only_UTF8(TARG); | |
| 1589 | else | |
| 1590 | (void)SvPOK_only(TARG); | |
| b80b6069 RH |
1591 | |
| 1592 | if (PL_op->op_private & OPpREPEAT_DOLIST) { | |
| 1593 | /* The parser saw this as a list repeat, and there | |
| 1594 | are probably several items on the stack. But we're | |
| 1595 | in scalar context, and there's no pp_list to save us | |
| 1596 | now. So drop the rest of the items -- robin@kitsite.com | |
| 1597 | */ | |
| 1598 | dMARK; | |
| 1599 | SP = MARK; | |
| 1600 | } | |
| a0d0e21e | 1601 | PUSHTARG; |
| 79072805 | 1602 | } |
| a0d0e21e | 1603 | RETURN; |
| 748a9306 | 1604 | } |
| a0d0e21e | 1605 | } |
| 79072805 | 1606 | |
| a0d0e21e LW |
1607 | PP(pp_subtract) |
| 1608 | { | |
| 800401ee JH |
1609 | dVAR; dSP; dATARGET; bool useleft; SV *svl, *svr; |
| 1610 | tryAMAGICbin(subtr,opASSIGN); | |
| 1611 | svl = sv_2num(TOPm1s); | |
| 1612 | svr = sv_2num(TOPs); | |
| 1613 | useleft = USE_LEFT(svl); | |
| 28e5dec8 | 1614 | #ifdef PERL_PRESERVE_IVUV |
| 7dca457a NC |
1615 | /* See comments in pp_add (in pp_hot.c) about Overflow, and how |
| 1616 | "bad things" happen if you rely on signed integers wrapping. */ | |
| 800401ee JH |
1617 | SvIV_please(svr); |
| 1618 | if (SvIOK(svr)) { | |
| 28e5dec8 JH |
1619 | /* Unless the left argument is integer in range we are going to have to |
| 1620 | use NV maths. Hence only attempt to coerce the right argument if | |
| 1621 | we know the left is integer. */ | |
| 9c5ffd7c JH |
1622 | register UV auv = 0; |
| 1623 | bool auvok = FALSE; | |
| 7dca457a NC |
1624 | bool a_valid = 0; |
| 1625 | ||
| 28e5dec8 | 1626 | if (!useleft) { |
| 7dca457a NC |
1627 | auv = 0; |
| 1628 | a_valid = auvok = 1; | |
| 1629 | /* left operand is undef, treat as zero. */ | |
| 28e5dec8 JH |
1630 | } else { |
| 1631 | /* Left operand is defined, so is it IV? */ | |
| 800401ee JH |
1632 | SvIV_please(svl); |
| 1633 | if (SvIOK(svl)) { | |
| 1634 | if ((auvok = SvUOK(svl))) | |
| 1635 | auv = SvUVX(svl); | |
| 7dca457a | 1636 | else { |
| 800401ee | 1637 | register const IV aiv = SvIVX(svl); |
| 7dca457a NC |
1638 | if (aiv >= 0) { |
| 1639 | auv = aiv; | |
| 1640 | auvok = 1; /* Now acting as a sign flag. */ | |
| 1641 | } else { /* 2s complement assumption for IV_MIN */ | |
| 1642 | auv = (UV)-aiv; | |
| 28e5dec8 | 1643 | } |
| 7dca457a NC |
1644 | } |
| 1645 | a_valid = 1; | |
| 1646 | } | |
| 1647 | } | |
| 1648 | if (a_valid) { | |
| 1649 | bool result_good = 0; | |
| 1650 | UV result; | |
| 1651 | register UV buv; | |
| 800401ee | 1652 | bool buvok = SvUOK(svr); |
| 9041c2e3 | 1653 | |
| 7dca457a | 1654 | if (buvok) |
| 800401ee | 1655 | buv = SvUVX(svr); |
| 7dca457a | 1656 | else { |
| 800401ee | 1657 | register const IV biv = SvIVX(svr); |
| 7dca457a NC |
1658 | if (biv >= 0) { |
| 1659 | buv = biv; | |
| 1660 | buvok = 1; | |
| 1661 | } else | |
| 1662 | buv = (UV)-biv; | |
| 1663 | } | |
| 1664 | /* ?uvok if value is >= 0. basically, flagged as UV if it's +ve, | |
| 602f51c4 | 1665 | else "IV" now, independent of how it came in. |
| 7dca457a NC |
1666 | if a, b represents positive, A, B negative, a maps to -A etc |
| 1667 | a - b => (a - b) | |
| 1668 | A - b => -(a + b) | |
| 1669 | a - B => (a + b) | |
| 1670 | A - B => -(a - b) | |
| 1671 | all UV maths. negate result if A negative. | |
| 1672 | subtract if signs same, add if signs differ. */ | |
| 1673 | ||
| 1674 | if (auvok ^ buvok) { | |
| 1675 | /* Signs differ. */ | |
| 1676 | result = auv + buv; | |
| 1677 | if (result >= auv) | |
| 1678 | result_good = 1; | |
| 1679 | } else { | |
| 1680 | /* Signs same */ | |
| 1681 | if (auv >= buv) { | |
| 1682 | result = auv - buv; | |
| 1683 | /* Must get smaller */ | |
| 1684 | if (result <= auv) | |
| 1685 | result_good = 1; | |
| 1686 | } else { | |
| 1687 | result = buv - auv; | |
| 1688 | if (result <= buv) { | |
| 1689 | /* result really should be -(auv-buv). as its negation | |
| 1690 | of true value, need to swap our result flag */ | |
| 1691 | auvok = !auvok; | |
| 1692 | result_good = 1; | |
| 28e5dec8 | 1693 | } |
| 28e5dec8 JH |
1694 | } |
| 1695 | } | |
| 7dca457a NC |
1696 | if (result_good) { |
| 1697 | SP--; | |
| 1698 | if (auvok) | |
| 1699 | SETu( result ); | |
| 1700 | else { | |
| 1701 | /* Negate result */ | |
| 1702 | if (result <= (UV)IV_MIN) | |
| 1703 | SETi( -(IV)result ); | |
| 1704 | else { | |
| 1705 | /* result valid, but out of range for IV. */ | |
| 1706 | SETn( -(NV)result ); | |
| 1707 | } | |
| 1708 | } | |
| 1709 | RETURN; | |
| 1710 | } /* Overflow, drop through to NVs. */ | |
| 28e5dec8 JH |
1711 | } |
| 1712 | } | |
| 1713 | #endif | |
| a0d0e21e | 1714 | { |
| 4efa5a16 RD |
1715 | NV value = SvNV(svr); |
| 1716 | (void)POPs; | |
| 1717 | ||
| 28e5dec8 JH |
1718 | if (!useleft) { |
| 1719 | /* left operand is undef, treat as zero - value */ | |
| 1720 | SETn(-value); | |
| 1721 | RETURN; | |
| 1722 | } | |
| 4efa5a16 | 1723 | SETn( SvNV(svl) - value ); |
| 28e5dec8 | 1724 | RETURN; |
| 79072805 | 1725 | } |
| a0d0e21e | 1726 | } |
| 79072805 | 1727 | |
| a0d0e21e LW |
1728 | PP(pp_left_shift) |
| 1729 | { | |
| 97aff369 | 1730 | dVAR; dSP; dATARGET; tryAMAGICbin(lshift,opASSIGN); |
| a0d0e21e | 1731 | { |
| 1b6737cc | 1732 | const IV shift = POPi; |
| d0ba1bd2 | 1733 | if (PL_op->op_private & HINT_INTEGER) { |
| c445ea15 | 1734 | const IV i = TOPi; |
| 972b05a9 | 1735 | SETi(i << shift); |
| d0ba1bd2 JH |
1736 | } |
| 1737 | else { | |
| c445ea15 | 1738 | const UV u = TOPu; |
| 972b05a9 | 1739 | SETu(u << shift); |
| d0ba1bd2 | 1740 | } |
| 55497cff | 1741 | RETURN; |
| 79072805 | 1742 | } |
| a0d0e21e | 1743 | } |
| 79072805 | 1744 | |
| a0d0e21e LW |
1745 | PP(pp_right_shift) |
| 1746 | { | |
| 97aff369 | 1747 | dVAR; dSP; dATARGET; tryAMAGICbin(rshift,opASSIGN); |
| a0d0e21e | 1748 | { |
| 1b6737cc | 1749 | const IV shift = POPi; |
| d0ba1bd2 | 1750 | if (PL_op->op_private & HINT_INTEGER) { |
| 0bd48802 | 1751 | const IV i = TOPi; |
| 972b05a9 | 1752 | SETi(i >> shift); |
| d0ba1bd2 JH |
1753 | } |
| 1754 | else { | |
| 0bd48802 | 1755 | const UV u = TOPu; |
| 972b05a9 | 1756 | SETu(u >> shift); |
| d0ba1bd2 | 1757 | } |
| a0d0e21e | 1758 | RETURN; |
| 93a17b20 | 1759 | } |
| 79072805 LW |
1760 | } |
| 1761 | ||
| a0d0e21e | 1762 | PP(pp_lt) |
| 79072805 | 1763 | { |
| 97aff369 | 1764 | dVAR; dSP; tryAMAGICbinSET(lt,0); |
| 28e5dec8 JH |
1765 | #ifdef PERL_PRESERVE_IVUV |
| 1766 | SvIV_please(TOPs); | |
| 1767 | if (SvIOK(TOPs)) { | |
| 1768 | SvIV_please(TOPm1s); | |
| 1769 | if (SvIOK(TOPm1s)) { | |
| 1770 | bool auvok = SvUOK(TOPm1s); | |
| 1771 | bool buvok = SvUOK(TOPs); | |
| a227d84d | 1772 | |
| 28e5dec8 | 1773 | if (!auvok && !buvok) { /* ## IV < IV ## */ |
| 1b6737cc AL |
1774 | const IV aiv = SvIVX(TOPm1s); |
| 1775 | const IV biv = SvIVX(TOPs); | |
| 28e5dec8 JH |
1776 | |
| 1777 | SP--; | |
| 1778 | SETs(boolSV(aiv < biv)); | |
| 1779 | RETURN; | |
| 1780 | } | |
| 1781 | if (auvok && buvok) { /* ## UV < UV ## */ | |
| 1b6737cc AL |
1782 | const UV auv = SvUVX(TOPm1s); |
| 1783 | const UV buv = SvUVX(TOPs); | |
| 28e5dec8 JH |
1784 | |
| 1785 | SP--; | |
| 1786 | SETs(boolSV(auv < buv)); | |
| 1787 | RETURN; | |
| 1788 | } | |
| 1789 | if (auvok) { /* ## UV < IV ## */ | |
| 1790 | UV auv; | |
| 1b6737cc | 1791 | const IV biv = SvIVX(TOPs); |
| 28e5dec8 JH |
1792 | SP--; |
| 1793 | if (biv < 0) { | |
| 1794 | /* As (a) is a UV, it's >=0, so it cannot be < */ | |
| 1795 | SETs(&PL_sv_no); | |
| 1796 | RETURN; | |
| 1797 | } | |
| 1798 | auv = SvUVX(TOPs); | |
| 28e5dec8 JH |
1799 | SETs(boolSV(auv < (UV)biv)); |
| 1800 | RETURN; | |
| 1801 | } | |
| 1802 | { /* ## IV < UV ## */ | |
| 1b6737cc | 1803 | const IV aiv = SvIVX(TOPm1s); |
| 28e5dec8 JH |
1804 | UV buv; |
| 1805 | ||
| 28e5dec8 JH |
1806 | if (aiv < 0) { |
| 1807 | /* As (b) is a UV, it's >=0, so it must be < */ | |
| 1808 | SP--; | |
| 1809 | SETs(&PL_sv_yes); | |
| 1810 | RETURN; | |
| 1811 | } | |
| 1812 | buv = SvUVX(TOPs); | |
| 1813 | SP--; | |
| 28e5dec8 JH |
1814 | SETs(boolSV((UV)aiv < buv)); |
| 1815 | RETURN; | |
| 1816 | } | |
| 1817 | } | |
| 1818 | } | |
| 1819 | #endif | |
| 30de85b6 | 1820 | #ifndef NV_PRESERVES_UV |
| 50fb3111 NC |
1821 | #ifdef PERL_PRESERVE_IVUV |
| 1822 | else | |
| 1823 | #endif | |
| 0bdaccee NC |
1824 | if (SvROK(TOPs) && !SvAMAGIC(TOPs) && SvROK(TOPm1s) && !SvAMAGIC(TOPm1s)) { |
| 1825 | SP--; | |
| 1826 | SETs(boolSV(SvRV(TOPs) < SvRV(TOPp1s))); | |
| 1827 | RETURN; | |
| 1828 | } | |
| 30de85b6 | 1829 | #endif |
| a0d0e21e | 1830 | { |
| cab190d4 JD |
1831 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
| 1832 | dPOPTOPnnrl; | |
| 1833 | if (Perl_isnan(left) || Perl_isnan(right)) | |
| 1834 | RETSETNO; | |
| 1835 | SETs(boolSV(left < right)); | |
| 1836 | #else | |
| a0d0e21e | 1837 | dPOPnv; |
| 54310121 | 1838 | SETs(boolSV(TOPn < value)); |
| cab190d4 | 1839 | #endif |
| a0d0e21e | 1840 | RETURN; |
| 79072805 | 1841 | } |
| a0d0e21e | 1842 | } |
| 79072805 | 1843 | |
| a0d0e21e LW |
1844 | PP(pp_gt) |
| 1845 | { | |
| 97aff369 | 1846 | dVAR; dSP; tryAMAGICbinSET(gt,0); |
| 28e5dec8 JH |
1847 | #ifdef PERL_PRESERVE_IVUV |
| 1848 | SvIV_please(TOPs); | |
| 1849 | if (SvIOK(TOPs)) { | |
| 1850 | SvIV_please(TOPm1s); | |
| 1851 | if (SvIOK(TOPm1s)) { | |
| 1852 | bool auvok = SvUOK(TOPm1s); | |
| 1853 | bool buvok = SvUOK(TOPs); | |
| a227d84d | 1854 | |
| 28e5dec8 | 1855 | if (!auvok && !buvok) { /* ## IV > IV ## */ |
| 1b6737cc AL |
1856 | const IV aiv = SvIVX(TOPm1s); |
| 1857 | const IV biv = SvIVX(TOPs); | |
| 1858 | ||
| 28e5dec8 JH |
1859 | SP--; |
| 1860 | SETs(boolSV(aiv > biv)); | |
| 1861 | RETURN; | |
| 1862 | } | |
| 1863 | if (auvok && buvok) { /* ## UV > UV ## */ | |
| 1b6737cc AL |
1864 | const UV auv = SvUVX(TOPm1s); |
| 1865 | const UV buv = SvUVX(TOPs); | |
| 28e5dec8 JH |
1866 | |
| 1867 | SP--; | |
| 1868 | SETs(boolSV(auv > buv)); | |
| 1869 | RETURN; | |
| 1870 | } | |
| 1871 | if (auvok) { /* ## UV > IV ## */ | |
| 1872 | UV auv; | |
| 1b6737cc AL |
1873 | const IV biv = SvIVX(TOPs); |
| 1874 | ||
| 28e5dec8 JH |
1875 | SP--; |
| 1876 | if (biv < 0) { | |
| 1877 | /* As (a) is a UV, it's >=0, so it must be > */ | |
| 1878 | SETs(&PL_sv_yes); | |
| 1879 | RETURN; | |
| 1880 | } | |
| 1881 | auv = SvUVX(TOPs); | |
| 28e5dec8 JH |
1882 | SETs(boolSV(auv > (UV)biv)); |
| 1883 | RETURN; | |
| 1884 | } | |
| 1885 | { /* ## IV > UV ## */ | |
| 1b6737cc | 1886 | const IV aiv = SvIVX(TOPm1s); |
| 28e5dec8 JH |
1887 | UV buv; |
| 1888 | ||
| 28e5dec8 JH |
1889 | if (aiv < 0) { |
| 1890 | /* As (b) is a UV, it's >=0, so it cannot be > */ | |
| 1891 | SP--; | |
| 1892 | SETs(&PL_sv_no); | |
| 1893 | RETURN; | |
| 1894 | } | |
| 1895 | buv = SvUVX(TOPs); | |
| 1896 | SP--; | |
| 28e5dec8 JH |
1897 | SETs(boolSV((UV)aiv > buv)); |
| 1898 | RETURN; | |
| 1899 | } | |
| 1900 | } | |
| 1901 | } | |
| 1902 | #endif | |
| 30de85b6 | 1903 | #ifndef NV_PRESERVES_UV |
| 50fb3111 NC |
1904 | #ifdef PERL_PRESERVE_IVUV |
| 1905 | else | |
| 1906 | #endif | |
| 0bdaccee | 1907 | if (SvROK(TOPs) && !SvAMAGIC(TOPs) && SvROK(TOPm1s) && !SvAMAGIC(TOPm1s)) { |
| 30de85b6 NC |
1908 | SP--; |
| 1909 | SETs(boolSV(SvRV(TOPs) > SvRV(TOPp1s))); | |
| 1910 | RETURN; | |
| 1911 | } | |
| 1912 | #endif | |
| a0d0e21e | 1913 | { |
| cab190d4 JD |
1914 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
| 1915 | dPOPTOPnnrl; | |
| 1916 | if (Perl_isnan(left) || Perl_isnan(right)) | |
| 1917 | RETSETNO; | |
| 1918 | SETs(boolSV(left > right)); | |
| 1919 | #else | |
| a0d0e21e | 1920 | dPOPnv; |
| 54310121 | 1921 | SETs(boolSV(TOPn > value)); |
| cab190d4 | 1922 | #endif |
| a0d0e21e | 1923 | RETURN; |
| 79072805 | 1924 | } |
| a0d0e21e LW |
1925 | } |
| 1926 | ||
| 1927 | PP(pp_le) | |
| 1928 | { | |
| 97aff369 | 1929 | dVAR; dSP; tryAMAGICbinSET(le,0); |
| 28e5dec8 JH |
1930 | #ifdef PERL_PRESERVE_IVUV |
| 1931 | SvIV_please(TOPs); | |
| 1932 | if (SvIOK(TOPs)) { | |
| 1933 | SvIV_please(TOPm1s); | |
| 1934 | if (SvIOK(TOPm1s)) { | |
| 1935 | bool auvok = SvUOK(TOPm1s); | |
| 1936 | bool buvok = SvUOK(TOPs); | |
| a227d84d | 1937 | |
| 28e5dec8 | 1938 | if (!auvok && !buvok) { /* ## IV <= IV ## */ |
| 1b6737cc AL |
1939 | const IV aiv = SvIVX(TOPm1s); |
| 1940 | const IV biv = SvIVX(TOPs); | |
| 28e5dec8 JH |
1941 | |
| 1942 | SP--; | |
| 1943 | SETs(boolSV(aiv <= biv)); | |
| 1944 | RETURN; | |
| 1945 | } | |
| 1946 | if (auvok && buvok) { /* ## UV <= UV ## */ | |
| 1947 | UV auv = SvUVX(TOPm1s); | |
| 1948 | UV buv = SvUVX(TOPs); | |
| 1949 | ||
| 1950 | SP--; | |
| 1951 | SETs(boolSV(auv <= buv)); | |
| 1952 | RETURN; | |
| 1953 | } | |
| 1954 | if (auvok) { /* ## UV <= IV ## */ | |
| 1955 | UV auv; | |
| 1b6737cc AL |
1956 | const IV biv = SvIVX(TOPs); |
| 1957 | ||
| 28e5dec8 JH |
1958 | SP--; |
| 1959 | if (biv < 0) { | |
| 1960 | /* As (a) is a UV, it's >=0, so a cannot be <= */ | |
| 1961 | SETs(&PL_sv_no); | |
| 1962 | RETURN; | |
| 1963 | } | |
| 1964 | auv = SvUVX(TOPs); | |
| 28e5dec8 JH |
1965 | SETs(boolSV(auv <= (UV)biv)); |
| 1966 | RETURN; | |
| 1967 | } | |
| 1968 | { /* ## IV <= UV ## */ | |
| 1b6737cc | 1969 | const IV aiv = SvIVX(TOPm1s); |
| 28e5dec8 | 1970 | UV buv; |
| 1b6737cc | 1971 | |
| 28e5dec8 JH |
1972 | if (aiv < 0) { |
| 1973 | /* As (b) is a UV, it's >=0, so a must be <= */ | |
| 1974 | SP--; | |
| 1975 | SETs(&PL_sv_yes); | |
| 1976 | RETURN; | |
| 1977 | } | |
| 1978 | buv = SvUVX(TOPs); | |
| 1979 | SP--; | |
| 28e5dec8 JH |
1980 | SETs(boolSV((UV)aiv <= buv)); |
| 1981 | RETURN; | |
| 1982 | } | |
| 1983 | } | |
| 1984 | } | |
| 1985 | #endif | |
| 30de85b6 | 1986 | #ifndef NV_PRESERVES_UV |
| 50fb3111 NC |
1987 | #ifdef PERL_PRESERVE_IVUV |
| 1988 | else | |
| 1989 | #endif | |
| 0bdaccee | 1990 | if (SvROK(TOPs) && !SvAMAGIC(TOPs) && SvROK(TOPm1s) && !SvAMAGIC(TOPm1s)) { |
| 30de85b6 NC |
1991 | SP--; |
| 1992 | SETs(boolSV(SvRV(TOPs) <= SvRV(TOPp1s))); | |
| 1993 | RETURN; | |
| 1994 | } | |
| 1995 | #endif | |
| a0d0e21e | 1996 | { |
| cab190d4 JD |
1997 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
| 1998 | dPOPTOPnnrl; | |
| 1999 | if (Perl_isnan(left) || Perl_isnan(right)) | |
| 2000 | RETSETNO; | |
| 2001 | SETs(boolSV(left <= right)); | |
| 2002 | #else | |
| a0d0e21e | 2003 | dPOPnv; |
| 54310121 | 2004 | SETs(boolSV(TOPn <= value)); |
| cab190d4 | 2005 | #endif |
| a0d0e21e | 2006 | RETURN; |
| 79072805 | 2007 | } |
| a0d0e21e LW |
2008 | } |
| 2009 | ||
| 2010 | PP(pp_ge) | |
| 2011 | { | |
| 97aff369 | 2012 | dVAR; dSP; tryAMAGICbinSET(ge,0); |
| 28e5dec8 JH |
2013 | #ifdef PERL_PRESERVE_IVUV |
| 2014 | SvIV_please(TOPs); | |
| 2015 | if (SvIOK(TOPs)) { | |
| 2016 | SvIV_please(TOPm1s); | |
| 2017 | if (SvIOK(TOPm1s)) { | |
| 2018 | bool auvok = SvUOK(TOPm1s); | |
| 2019 | bool buvok = SvUOK(TOPs); | |
| a227d84d | 2020 | |
| 28e5dec8 | 2021 | if (!auvok && !buvok) { /* ## IV >= IV ## */ |
| 1b6737cc AL |
2022 | const IV aiv = SvIVX(TOPm1s); |
| 2023 | const IV biv = SvIVX(TOPs); | |
| 2024 | ||
| 28e5dec8 JH |
2025 | SP--; |
| 2026 | SETs(boolSV(aiv >= biv)); | |
| 2027 | RETURN; | |
| 2028 | } | |
| 2029 | if (auvok && buvok) { /* ## UV >= UV ## */ | |
| 1b6737cc AL |
2030 | const UV auv = SvUVX(TOPm1s); |
| 2031 | const UV buv = SvUVX(TOPs); | |
| 2032 | ||
| 28e5dec8 JH |
2033 | SP--; |
| 2034 | SETs(boolSV(auv >= buv)); | |
| 2035 | RETURN; | |
| 2036 | } | |
| 2037 | if (auvok) { /* ## UV >= IV ## */ | |
| 2038 | UV auv; | |
| 1b6737cc AL |
2039 | const IV biv = SvIVX(TOPs); |
| 2040 | ||
| 28e5dec8 JH |
2041 | SP--; |
| 2042 | if (biv < 0) { | |
| 2043 | /* As (a) is a UV, it's >=0, so it must be >= */ | |
| 2044 | SETs(&PL_sv_yes); | |
| 2045 | RETURN; | |
| 2046 | } | |
| 2047 | auv = SvUVX(TOPs); | |
| 28e5dec8 JH |
2048 | SETs(boolSV(auv >= (UV)biv)); |
| 2049 | RETURN; | |
| 2050 | } | |
| 2051 | { /* ## IV >= UV ## */ | |
| 1b6737cc | 2052 | const IV aiv = SvIVX(TOPm1s); |
| 28e5dec8 | 2053 | UV buv; |
| 1b6737cc | 2054 | |
| 28e5dec8 JH |
2055 | if (aiv < 0) { |
| 2056 | /* As (b) is a UV, it's >=0, so a cannot be >= */ | |
| 2057 | SP--; | |
| 2058 | SETs(&PL_sv_no); | |
| 2059 | RETURN; | |
| 2060 | } | |
| 2061 | buv = SvUVX(TOPs); | |
| 2062 | SP--; | |
| 28e5dec8 JH |
2063 | SETs(boolSV((UV)aiv >= buv)); |
| 2064 | RETURN; | |
| 2065 | } | |
| 2066 | } | |
| 2067 | } | |
| 2068 | #endif | |
| 30de85b6 | 2069 | #ifndef NV_PRESERVES_UV |
| 50fb3111 NC |
2070 | #ifdef PERL_PRESERVE_IVUV |
| 2071 | else | |
| 2072 | #endif | |
| 0bdaccee | 2073 | if (SvROK(TOPs) && !SvAMAGIC(TOPs) && SvROK(TOPm1s) && !SvAMAGIC(TOPm1s)) { |
| 30de85b6 NC |
2074 | SP--; |
| 2075 | SETs(boolSV(SvRV(TOPs) >= SvRV(TOPp1s))); | |
| 2076 | RETURN; | |
| 2077 | } | |
| 2078 | #endif | |
| a0d0e21e | 2079 | { |
| cab190d4 JD |
2080 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
| 2081 | dPOPTOPnnrl; | |
| 2082 | if (Perl_isnan(left) || Perl_isnan(right)) | |
| 2083 | RETSETNO; | |
| 2084 | SETs(boolSV(left >= right)); | |
| 2085 | #else | |
| a0d0e21e | 2086 | dPOPnv; |
| 54310121 | 2087 | SETs(boolSV(TOPn >= value)); |
| cab190d4 | 2088 | #endif |
| a0d0e21e | 2089 | RETURN; |
| 79072805 | 2090 | } |
| a0d0e21e | 2091 | } |
| 79072805 | 2092 | |
| a0d0e21e LW |
2093 | PP(pp_ne) |
| 2094 | { | |
| 97aff369 | 2095 | dVAR; dSP; tryAMAGICbinSET(ne,0); |
| 3bb2c415 | 2096 | #ifndef NV_PRESERVES_UV |
| 0bdaccee | 2097 | if (SvROK(TOPs) && !SvAMAGIC(TOPs) && SvROK(TOPm1s) && !SvAMAGIC(TOPm1s)) { |
| e61d22ef NC |
2098 | SP--; |
| 2099 | SETs(boolSV(SvRV(TOPs) != SvRV(TOPp1s))); | |
| 3bb2c415 JH |
2100 | RETURN; |
| 2101 | } | |
| 2102 | #endif | |
| 28e5dec8 JH |
2103 | #ifdef PERL_PRESERVE_IVUV |
| 2104 | SvIV_please(TOPs); | |
| 2105 | if (SvIOK(TOPs)) { | |
| 2106 | SvIV_please(TOPm1s); | |
| 2107 | if (SvIOK(TOPm1s)) { | |
| 0bd48802 AL |
2108 | const bool auvok = SvUOK(TOPm1s); |
| 2109 | const bool buvok = SvUOK(TOPs); | |
| a227d84d | 2110 | |
| 30de85b6 NC |
2111 | if (auvok == buvok) { /* ## IV == IV or UV == UV ## */ |
| 2112 | /* Casting IV to UV before comparison isn't going to matter | |
| 2113 | on 2s complement. On 1s complement or sign&magnitude | |
| 2114 | (if we have any of them) it could make negative zero | |
| 2115 | differ from normal zero. As I understand it. (Need to | |
| 2116 | check - is negative zero implementation defined behaviour | |
| 2117 | anyway?). NWC */ | |
| 1b6737cc AL |
2118 | const UV buv = SvUVX(POPs); |
| 2119 | const UV auv = SvUVX(TOPs); | |
| 2120 | ||
| 28e5dec8 JH |
2121 | SETs(boolSV(auv != buv)); |
| 2122 | RETURN; | |
| 2123 | } | |
| 2124 | { /* ## Mixed IV,UV ## */ | |
| 2125 | IV iv; | |
| 2126 | UV uv; | |
| 2127 | ||
| 2128 | /* != is commutative so swap if needed (save code) */ | |
| 2129 | if (auvok) { | |
| 2130 | /* swap. top of stack (b) is the iv */ | |
| 2131 | iv = SvIVX(TOPs); | |
| 2132 | SP--; | |
| 2133 | if (iv < 0) { | |
| 2134 | /* As (a) is a UV, it's >0, so it cannot be == */ | |
| 2135 | SETs(&PL_sv_yes); | |
| 2136 | RETURN; | |
| 2137 | } | |
| 2138 | uv = SvUVX(TOPs); | |
| 2139 | } else { | |
| 2140 | iv = SvIVX(TOPm1s); | |
| 2141 | SP--; | |
| 2142 | if (iv < 0) { | |
| 2143 | /* As (b) is a UV, it's >0, so it cannot be == */ | |
| 2144 | SETs(&PL_sv_yes); | |
| 2145 | RETURN; | |
| 2146 | } | |
| 2147 | uv = SvUVX(*(SP+1)); /* Do I want TOPp1s() ? */ | |
| 2148 | } | |
| 28e5dec8 JH |
2149 | SETs(boolSV((UV)iv != uv)); |
| 2150 | RETURN; | |
| 2151 | } | |
| 2152 | } | |
| 2153 | } | |
| 2154 | #endif | |
| a0d0e21e | 2155 | { |
| cab190d4 JD |
2156 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
| 2157 | dPOPTOPnnrl; | |
| 2158 | if (Perl_isnan(left) || Perl_isnan(right)) | |
| 2159 | RETSETYES; | |
| 2160 | SETs(boolSV(left != right)); | |
| 2161 | #else | |
| a0d0e21e | 2162 | dPOPnv; |
| 54310121 | 2163 | SETs(boolSV(TOPn != value)); |
| cab190d4 | 2164 | #endif |
| a0d0e21e LW |
2165 | RETURN; |
| 2166 | } | |
| 79072805 LW |
2167 | } |
| 2168 | ||
| a0d0e21e | 2169 | PP(pp_ncmp) |
| 79072805 | 2170 | { |
| 97aff369 | 2171 | dVAR; dSP; dTARGET; tryAMAGICbin(ncmp,0); |
| d8c7644e | 2172 | #ifndef NV_PRESERVES_UV |
| 0bdaccee | 2173 | if (SvROK(TOPs) && !SvAMAGIC(TOPs) && SvROK(TOPm1s) && !SvAMAGIC(TOPm1s)) { |
| 0bd48802 AL |
2174 | const UV right = PTR2UV(SvRV(POPs)); |
| 2175 | const UV left = PTR2UV(SvRV(TOPs)); | |
| e61d22ef | 2176 | SETi((left > right) - (left < right)); |
| d8c7644e JH |
2177 | RETURN; |
| 2178 | } | |
| 2179 | #endif | |
| 28e5dec8 JH |
2180 | #ifdef PERL_PRESERVE_IVUV |
| 2181 | /* Fortunately it seems NaN isn't IOK */ | |
| 2182 | SvIV_please(TOPs); | |
| 2183 | if (SvIOK(TOPs)) { | |
| 2184 | SvIV_please(TOPm1s); | |
| 2185 | if (SvIOK(TOPm1s)) { | |
| 1b6737cc AL |
2186 | const bool leftuvok = SvUOK(TOPm1s); |
| 2187 | const bool rightuvok = SvUOK(TOPs); | |
| 28e5dec8 JH |
2188 | I32 value; |
| 2189 | if (!leftuvok && !rightuvok) { /* ## IV <=> IV ## */ | |
| 1b6737cc AL |
2190 | const IV leftiv = SvIVX(TOPm1s); |
| 2191 | const IV rightiv = SvIVX(TOPs); | |
| 28e5dec8 JH |
2192 | |
| 2193 | if (leftiv > rightiv) | |
| 2194 | value = 1; | |
| 2195 | else if (leftiv < rightiv) | |
| 2196 | value = -1; | |
| 2197 | else | |
| 2198 | value = 0; | |
| 2199 | } else if (leftuvok && rightuvok) { /* ## UV <=> UV ## */ | |
| 1b6737cc AL |
2200 | const UV leftuv = SvUVX(TOPm1s); |
| 2201 | const UV rightuv = SvUVX(TOPs); | |
| 28e5dec8 JH |
2202 | |
| 2203 | if (leftuv > rightuv) | |
| 2204 | value = 1; | |
| 2205 | else if (leftuv < rightuv) | |
| 2206 | value = -1; | |
| 2207 | else | |
| 2208 | value = 0; | |
| 2209 | } else if (leftuvok) { /* ## UV <=> IV ## */ | |
| 1b6737cc | 2210 | const IV rightiv = SvIVX(TOPs); |
| 28e5dec8 JH |
2211 | if (rightiv < 0) { |
| 2212 | /* As (a) is a UV, it's >=0, so it cannot be < */ | |
| 2213 | value = 1; | |
| 2214 | } else { | |
| 1b6737cc | 2215 | const UV leftuv = SvUVX(TOPm1s); |
| 83bac5dd | 2216 | if (leftuv > (UV)rightiv) { |
| 28e5dec8 JH |
2217 | value = 1; |
| 2218 | } else if (leftuv < (UV)rightiv) { | |
| 2219 | value = -1; | |
| 2220 | } else { | |
| 2221 | value = 0; | |
| 2222 | } | |
| 2223 | } | |
| 2224 | } else { /* ## IV <=> UV ## */ | |
| 1b6737cc | 2225 | const IV leftiv = SvIVX(TOPm1s); |
| 28e5dec8 JH |
2226 | if (leftiv < 0) { |
| 2227 | /* As (b) is a UV, it's >=0, so it must be < */ | |
| 2228 | value = -1; | |
| 2229 | } else { | |
| 1b6737cc | 2230 | const UV rightuv = SvUVX(TOPs); |
| 83bac5dd | 2231 | if ((UV)leftiv > rightuv) { |
| 28e5dec8 | 2232 | value = 1; |
| 83bac5dd | 2233 | } else if ((UV)leftiv < rightuv) { |
| 28e5dec8 JH |
2234 | value = -1; |
| 2235 | } else { | |
| 2236 | value = 0; | |
| 2237 | } | |
| 2238 | } | |
| 2239 | } | |
| 2240 | SP--; | |
| 2241 | SETi(value); | |
| 2242 | RETURN; | |
| 2243 | } | |
| 2244 | } | |
| 2245 | #endif | |
| a0d0e21e LW |
2246 | { |
| 2247 | dPOPTOPnnrl; | |
| 2248 | I32 value; | |
| 79072805 | 2249 | |
| a3540c92 | 2250 | #ifdef Perl_isnan |
| 1ad04cfd JH |
2251 | if (Perl_isnan(left) || Perl_isnan(right)) { |
| 2252 | SETs(&PL_sv_undef); | |
| 2253 | RETURN; | |
| 2254 | } | |
| 2255 | value = (left > right) - (left < right); | |
| 2256 | #else | |
| ff0cee69 | 2257 | if (left == right) |
| a0d0e21e | 2258 | value = 0; |
| a0d0e21e LW |
2259 | else if (left < right) |
| 2260 | value = -1; | |
| 44a8e56a | 2261 | else if (left > right) |
| 2262 | value = 1; | |
| 2263 | else { | |
| 3280af22 | 2264 | SETs(&PL_sv_undef); |
| 44a8e56a | 2265 | RETURN; |
| 2266 | } | |
| 1ad04cfd | 2267 | #endif |
| a0d0e21e LW |
2268 | SETi(value); |
| 2269 | RETURN; | |
| 79072805 | 2270 | } |
| a0d0e21e | 2271 | } |
| 79072805 | 2272 | |
| afd9910b | 2273 | PP(pp_sle) |
| a0d0e21e | 2274 | { |
| 97aff369 | 2275 | dVAR; dSP; |
| 79072805 | 2276 | |
| afd9910b NC |
2277 | int amg_type = sle_amg; |
| 2278 | int multiplier = 1; | |
| 2279 | int rhs = 1; | |
| 79072805 | 2280 | |
| afd9910b NC |
2281 | switch (PL_op->op_type) { |
| 2282 | case OP_SLT: | |
| 2283 | amg_type = slt_amg; | |
| 2284 | /* cmp < 0 */ | |
| 2285 | rhs = 0; | |
| 2286 | break; | |
| 2287 | case OP_SGT: | |
| 2288 | amg_type = sgt_amg; | |
| 2289 | /* cmp > 0 */ | |
| 2290 | multiplier = -1; | |
| 2291 | rhs = 0; | |
| 2292 | break; | |
| 2293 | case OP_SGE: | |
| 2294 | amg_type = sge_amg; | |
| 2295 | /* cmp >= 0 */ | |
| 2296 | multiplier = -1; | |
| 2297 | break; | |
| 79072805 | 2298 | } |
| 79072805 | 2299 | |
| afd9910b | 2300 | tryAMAGICbinSET_var(amg_type,0); |
| a0d0e21e LW |
2301 | { |
| 2302 | dPOPTOPssrl; | |
| 1b6737cc | 2303 | const int cmp = (IN_LOCALE_RUNTIME |
| bbce6d69 | 2304 | ? sv_cmp_locale(left, right) |
| 2305 | : sv_cmp(left, right)); | |
| afd9910b | 2306 | SETs(boolSV(cmp * multiplier < rhs)); |
| a0d0e21e LW |
2307 | RETURN; |
| 2308 | } | |
| 2309 | } | |
| 79072805 | 2310 | |
| 36477c24 | 2311 | PP(pp_seq) |
| 2312 | { | |
| 97aff369 | 2313 | dVAR; dSP; tryAMAGICbinSET(seq,0); |
| 36477c24 | 2314 | { |
| 2315 | dPOPTOPssrl; | |
| 54310121 | 2316 | SETs(boolSV(sv_eq(left, right))); |
| a0d0e21e LW |
2317 | RETURN; |
| 2318 | } | |
| 2319 | } | |
| 79072805 | 2320 | |
| a0d0e21e | 2321 | PP(pp_sne) |
| 79072805 | 2322 | { |
| 97aff369 | 2323 | dVAR; dSP; tryAMAGICbinSET(sne,0); |
| a0d0e21e LW |
2324 | { |
| 2325 | dPOPTOPssrl; | |
| 54310121 | 2326 | SETs(boolSV(!sv_eq(left, right))); |
| a0d0e21e | 2327 | RETURN; |
| 463ee0b2 | 2328 | } |
| 79072805 LW |
2329 | } |
| 2330 | ||
| a0d0e21e | 2331 | PP(pp_scmp) |
| 79072805 | 2332 | { |
| 97aff369 | 2333 | dVAR; dSP; dTARGET; tryAMAGICbin(scmp,0); |
| a0d0e21e LW |
2334 | { |
| 2335 | dPOPTOPssrl; | |
| 1b6737cc | 2336 | const int cmp = (IN_LOCALE_RUNTIME |
| bbce6d69 | 2337 | ? sv_cmp_locale(left, right) |
| 2338 | : sv_cmp(left, right)); | |
| 2339 | SETi( cmp ); | |
| a0d0e21e LW |
2340 | RETURN; |
| 2341 | } | |
| 2342 | } | |
| 79072805 | 2343 | |
| 55497cff | 2344 | PP(pp_bit_and) |
| 2345 | { | |
| 97aff369 | 2346 | dVAR; dSP; dATARGET; tryAMAGICbin(band,opASSIGN); |
| a0d0e21e LW |
2347 | { |
| 2348 | dPOPTOPssrl; | |
| 5b295bef RD |
2349 | SvGETMAGIC(left); |
| 2350 | SvGETMAGIC(right); | |
| 4633a7c4 | 2351 | if (SvNIOKp(left) || SvNIOKp(right)) { |
| d0ba1bd2 | 2352 | if (PL_op->op_private & HINT_INTEGER) { |
| 1b6737cc | 2353 | const IV i = SvIV_nomg(left) & SvIV_nomg(right); |
| 972b05a9 | 2354 | SETi(i); |
| d0ba1bd2 JH |
2355 | } |
| 2356 | else { | |
| 1b6737cc | 2357 | const UV u = SvUV_nomg(left) & SvUV_nomg(right); |
| 972b05a9 | 2358 | SETu(u); |
| d0ba1bd2 | 2359 | } |
| a0d0e21e LW |
2360 | } |
| 2361 | else { | |
| 533c011a | 2362 | do_vop(PL_op->op_type, TARG, left, right); |
| a0d0e21e LW |
2363 | SETTARG; |
| 2364 | } | |
| 2365 | RETURN; | |
| 2366 | } | |
| 2367 | } | |
| 79072805 | 2368 | |
| a0d0e21e LW |
2369 | PP(pp_bit_or) |
| 2370 | { | |
| 3658c1f1 NC |
2371 | dVAR; dSP; dATARGET; |
| 2372 | const int op_type = PL_op->op_type; | |
| 2373 | ||
| 2374 | tryAMAGICbin_var((op_type == OP_BIT_OR ? bor_amg : bxor_amg), opASSIGN); | |
| a0d0e21e LW |
2375 | { |
| 2376 | dPOPTOPssrl; | |
| 5b295bef RD |
2377 | SvGETMAGIC(left); |
| 2378 | SvGETMAGIC(right); | |
| 4633a7c4 | 2379 | if (SvNIOKp(left) || SvNIOKp(right)) { |
| d0ba1bd2 | 2380 | if (PL_op->op_private & HINT_INTEGER) { |
| 3658c1f1 NC |
2381 | const IV l = (USE_LEFT(left) ? SvIV_nomg(left) : 0); |
| 2382 | const IV r = SvIV_nomg(right); | |
| 2383 | const IV result = op_type == OP_BIT_OR ? (l | r) : (l ^ r); | |
| 2384 | SETi(result); | |
| d0ba1bd2 JH |
2385 | } |
| 2386 | else { | |
| 3658c1f1 NC |
2387 | const UV l = (USE_LEFT(left) ? SvUV_nomg(left) : 0); |
| 2388 | const UV r = SvUV_nomg(right); | |
| 2389 | const UV result = op_type == OP_BIT_OR ? (l | r) : (l ^ r); | |
| 2390 | SETu(result); | |
| d0ba1bd2 | 2391 | } |
| a0d0e21e LW |
2392 | } |
| 2393 | else { | |
| 3658c1f1 | 2394 | do_vop(op_type, TARG, left, right); |
| a0d0e21e LW |
2395 | SETTARG; |
| 2396 | } | |
| 2397 | RETURN; | |
| 79072805 | 2398 | } |
| a0d0e21e | 2399 | } |
| 79072805 | 2400 | |
| a0d0e21e LW |
2401 | PP(pp_negate) |
| 2402 | { | |
| 97aff369 | 2403 | dVAR; dSP; dTARGET; tryAMAGICun(neg); |
| a0d0e21e | 2404 | { |
| 800401ee | 2405 | SV * const sv = sv_2num(TOPs); |
| 1b6737cc | 2406 | const int flags = SvFLAGS(sv); |
| 5b295bef | 2407 | SvGETMAGIC(sv); |
| 28e5dec8 JH |
2408 | if ((flags & SVf_IOK) || ((flags & (SVp_IOK | SVp_NOK)) == SVp_IOK)) { |
| 2409 | /* It's publicly an integer, or privately an integer-not-float */ | |
| 2410 | oops_its_an_int: | |
| 9b0e499b GS |
2411 | if (SvIsUV(sv)) { |
| 2412 | if (SvIVX(sv) == IV_MIN) { | |
| 28e5dec8 | 2413 | /* 2s complement assumption. */ |
| 9b0e499b GS |
2414 | SETi(SvIVX(sv)); /* special case: -((UV)IV_MAX+1) == IV_MIN */ |
| 2415 | RETURN; | |
| 2416 | } | |
| 2417 | else if (SvUVX(sv) <= IV_MAX) { | |
| beccb14c | 2418 | SETi(-SvIVX(sv)); |
| 9b0e499b GS |
2419 | RETURN; |
| 2420 | } | |
| 2421 | } | |
| 2422 | else if (SvIVX(sv) != IV_MIN) { | |
| 2423 | SETi(-SvIVX(sv)); | |
| 2424 | RETURN; | |
| 2425 | } | |
| 28e5dec8 JH |
2426 | #ifdef PERL_PRESERVE_IVUV |
| 2427 | else { | |
| 2428 | SETu((UV)IV_MIN); | |
| 2429 | RETURN; | |
| 2430 | } | |
| 2431 | #endif | |
| 9b0e499b GS |
2432 | } |
| 2433 | if (SvNIOKp(sv)) | |
| a0d0e21e | 2434 | SETn(-SvNV(sv)); |
| 4633a7c4 | 2435 | else if (SvPOKp(sv)) { |
| a0d0e21e | 2436 | STRLEN len; |
| c445ea15 | 2437 | const char * const s = SvPV_const(sv, len); |
| bbce6d69 | 2438 | if (isIDFIRST(*s)) { |
| 76f68e9b | 2439 | sv_setpvs(TARG, "-"); |
| a0d0e21e | 2440 | sv_catsv(TARG, sv); |
| 79072805 | 2441 | } |
| a0d0e21e LW |
2442 | else if (*s == '+' || *s == '-') { |
| 2443 | sv_setsv(TARG, sv); | |
| 2444 | *SvPV_force(TARG, len) = *s == '-' ? '+' : '-'; | |
| 79072805 | 2445 | } |
| 8eb28a70 JH |
2446 | else if (DO_UTF8(sv)) { |
| 2447 | SvIV_please(sv); | |
| 2448 | if (SvIOK(sv)) | |
| 2449 | goto oops_its_an_int; | |
| 2450 | if (SvNOK(sv)) | |
| 2451 | sv_setnv(TARG, -SvNV(sv)); | |
| 2452 | else { | |
| 76f68e9b | 2453 | sv_setpvs(TARG, "-"); |
| 8eb28a70 JH |
2454 | sv_catsv(TARG, sv); |
| 2455 | } | |
| 834a4ddd | 2456 | } |
| 28e5dec8 | 2457 | else { |
| 8eb28a70 JH |
2458 | SvIV_please(sv); |
| 2459 | if (SvIOK(sv)) | |
| 2460 | goto oops_its_an_int; | |
| 2461 | sv_setnv(TARG, -SvNV(sv)); | |
| 28e5dec8 | 2462 | } |
| a0d0e21e | 2463 | SETTARG; |
| 79072805 | 2464 | } |
| 4633a7c4 LW |
2465 | else |
| 2466 | SETn(-SvNV(sv)); | |
| 79072805 | 2467 | } |
| a0d0e21e | 2468 | RETURN; |
| 79072805 LW |
2469 | } |
| 2470 | ||
| a0d0e21e | 2471 | PP(pp_not) |
| 79072805 | 2472 | { |
| 97aff369 | 2473 | dVAR; dSP; tryAMAGICunSET(not); |
| 3280af22 | 2474 | *PL_stack_sp = boolSV(!SvTRUE(*PL_stack_sp)); |
| a0d0e21e | 2475 | return NORMAL; |
| 79072805 LW |
2476 | } |
| 2477 | ||
| a0d0e21e | 2478 | PP(pp_complement) |
| 79072805 | 2479 | { |
| 97aff369 | 2480 | dVAR; dSP; dTARGET; tryAMAGICun(compl); |
| a0d0e21e LW |
2481 | { |
| 2482 | dTOPss; | |
| 5b295bef | 2483 | SvGETMAGIC(sv); |
| 4633a7c4 | 2484 | if (SvNIOKp(sv)) { |
| d0ba1bd2 | 2485 | if (PL_op->op_private & HINT_INTEGER) { |
| 1b6737cc | 2486 | const IV i = ~SvIV_nomg(sv); |
| 972b05a9 | 2487 | SETi(i); |
| d0ba1bd2 JH |
2488 | } |
| 2489 | else { | |
| 1b6737cc | 2490 | const UV u = ~SvUV_nomg(sv); |
| 972b05a9 | 2491 | SETu(u); |
| d0ba1bd2 | 2492 | } |
| a0d0e21e LW |
2493 | } |
| 2494 | else { | |
| 51723571 | 2495 | register U8 *tmps; |
| 55497cff | 2496 | register I32 anum; |
| a0d0e21e LW |
2497 | STRLEN len; |
| 2498 | ||
| 10516c54 | 2499 | (void)SvPV_nomg_const(sv,len); /* force check for uninit var */ |
| 891f9566 | 2500 | sv_setsv_nomg(TARG, sv); |
| 51723571 | 2501 | tmps = (U8*)SvPV_force(TARG, len); |
| a0d0e21e | 2502 | anum = len; |
| 1d68d6cd | 2503 | if (SvUTF8(TARG)) { |
| a1ca4561 | 2504 | /* Calculate exact length, let's not estimate. */ |
| 1d68d6cd | 2505 | STRLEN targlen = 0; |
| ba210ebe | 2506 | STRLEN l; |
| a1ca4561 YST |
2507 | UV nchar = 0; |
| 2508 | UV nwide = 0; | |
| 01f6e806 | 2509 | U8 * const send = tmps + len; |
| 74d49cd0 TS |
2510 | U8 * const origtmps = tmps; |
| 2511 | const UV utf8flags = UTF8_ALLOW_ANYUV; | |
| 1d68d6cd | 2512 | |
| 1d68d6cd | 2513 | while (tmps < send) { |
| 74d49cd0 TS |
2514 | const UV c = utf8n_to_uvchr(tmps, send-tmps, &l, utf8flags); |
| 2515 | tmps += l; | |
| 5bbb0b5a | 2516 | targlen += UNISKIP(~c); |
| a1ca4561 YST |
2517 | nchar++; |
| 2518 | if (c > 0xff) | |
| 2519 | nwide++; | |
| 1d68d6cd SC |
2520 | } |
| 2521 | ||
| 2522 | /* Now rewind strings and write them. */ | |
| 74d49cd0 | 2523 | tmps = origtmps; |
| a1ca4561 YST |
2524 | |
| 2525 | if (nwide) { | |
| 01f6e806 AL |
2526 | U8 *result; |
| 2527 | U8 *p; | |
| 2528 | ||
| 74d49cd0 | 2529 | Newx(result, targlen + 1, U8); |
| 01f6e806 | 2530 | p = result; |
| a1ca4561 | 2531 | while (tmps < send) { |
| 74d49cd0 TS |
2532 | const UV c = utf8n_to_uvchr(tmps, send-tmps, &l, utf8flags); |
| 2533 | tmps += l; | |
| 01f6e806 | 2534 | p = uvchr_to_utf8_flags(p, ~c, UNICODE_ALLOW_ANY); |
| a1ca4561 | 2535 | } |
| 01f6e806 | 2536 | *p = '\0'; |
| c1c21316 NC |
2537 | sv_usepvn_flags(TARG, (char*)result, targlen, |
| 2538 | SV_HAS_TRAILING_NUL); | |
| a1ca4561 YST |
2539 | SvUTF8_on(TARG); |
| 2540 | } | |
| 2541 | else { | |
| 01f6e806 AL |
2542 | U8 *result; |
| 2543 | U8 *p; | |
| 2544 | ||
| 74d49cd0 | 2545 | Newx(result, nchar + 1, U8); |
| 01f6e806 | 2546 | p = result; |
| a1ca4561 | 2547 | while (tmps < send) { |
| 74d49cd0 TS |
2548 | const U8 c = (U8)utf8n_to_uvchr(tmps, send-tmps, &l, utf8flags); |
| 2549 | tmps += l; | |
| 01f6e806 | 2550 | *p++ = ~c; |
| a1ca4561 | 2551 | } |
| 01f6e806 | 2552 | *p = '\0'; |
| c1c21316 | 2553 | sv_usepvn_flags(TARG, (char*)result, nchar, SV_HAS_TRAILING_NUL); |
| d0a21e00 | 2554 | SvUTF8_off(TARG); |
| 1d68d6cd | 2555 | } |
| ec93b65f | 2556 | SETTARG; |
| 1d68d6cd SC |
2557 | RETURN; |
| 2558 | } | |
| a0d0e21e | 2559 | #ifdef LIBERAL |
| 51723571 JH |
2560 | { |
| 2561 | register long *tmpl; | |
| 2562 | for ( ; anum && (unsigned long)tmps % sizeof(long); anum--, tmps++) | |
| 2563 | *tmps = ~*tmps; | |
| 2564 | tmpl = (long*)tmps; | |
| bb7a0f54 | 2565 | for ( ; anum >= (I32)sizeof(long); anum -= (I32)sizeof(long), tmpl++) |
| 51723571 JH |
2566 | *tmpl = ~*tmpl; |
| 2567 | tmps = (U8*)tmpl; | |
| 2568 | } | |
| a0d0e21e LW |
2569 | #endif |
| 2570 | for ( ; anum > 0; anum--, tmps++) | |
| 2571 | *tmps = ~*tmps; | |
| ec93b65f | 2572 | SETTARG; |
| a0d0e21e LW |
2573 | } |
| 2574 | RETURN; | |
| 2575 | } | |
| 79072805 LW |
2576 | } |
| 2577 | ||
| a0d0e21e LW |
2578 | /* integer versions of some of the above */ |
| 2579 | ||
| a0d0e21e | 2580 | PP(pp_i_multiply) |
| 79072805 | 2581 | { |
| 97aff369 | 2582 | dVAR; dSP; dATARGET; tryAMAGICbin(mult,opASSIGN); |
| a0d0e21e LW |
2583 | { |
| 2584 | dPOPTOPiirl; | |
| 2585 | SETi( left * right ); | |
| 2586 | RETURN; | |
| 2587 | } | |
| 79072805 LW |
2588 | } |
| 2589 | ||
| a0d0e21e | 2590 | PP(pp_i_divide) |
| 79072805 | 2591 | { |
| ece1bcef | 2592 | IV num; |
| 97aff369 | 2593 | dVAR; dSP; dATARGET; tryAMAGICbin(div,opASSIGN); |
| a0d0e21e LW |
2594 | { |
| 2595 | dPOPiv; | |
| 2596 | if (value == 0) | |
| ece1bcef SP |
2597 | DIE(aTHX_ "Illegal division by zero"); |
| 2598 | num = POPi; | |
| a0cec769 YST |
2599 | |
| 2600 | /* avoid FPE_INTOVF on some platforms when num is IV_MIN */ | |
| 2601 | if (value == -1) | |
| 2602 | value = - num; | |
| 2603 | else | |
| 2604 | value = num / value; | |
| a0d0e21e LW |
2605 | PUSHi( value ); |
| 2606 | RETURN; | |
| 2607 | } | |
| 79072805 LW |
2608 | } |
| 2609 | ||
| befad5d1 | 2610 | #if defined(__GLIBC__) && IVSIZE == 8 |
| 224ec323 JH |
2611 | STATIC |
| 2612 | PP(pp_i_modulo_0) | |
| befad5d1 NC |
2613 | #else |
| 2614 | PP(pp_i_modulo) | |
| 2615 | #endif | |
| 224ec323 JH |
2616 | { |
| 2617 | /* This is the vanilla old i_modulo. */ | |
| 27da23d5 | 2618 | dVAR; dSP; dATARGET; tryAMAGICbin(modulo,opASSIGN); |
| 224ec323 JH |
2619 | { |
| 2620 | dPOPTOPiirl; | |
| 2621 | if (!right) | |
| 2622 | DIE(aTHX_ "Illegal modulus zero"); | |
| a0cec769 YST |
2623 | /* avoid FPE_INTOVF on some platforms when left is IV_MIN */ |
| 2624 | if (right == -1) | |
| 2625 | SETi( 0 ); | |
| 2626 | else | |
| 2627 | SETi( left % right ); | |
| 224ec323 JH |
2628 | RETURN; |
| 2629 | } | |
| 2630 | } | |
| 2631 | ||
| 11010fa3 | 2632 | #if defined(__GLIBC__) && IVSIZE == 8 |
| 224ec323 JH |
2633 | STATIC |
| 2634 | PP(pp_i_modulo_1) | |
| befad5d1 | 2635 | |
| 224ec323 | 2636 | { |
| 224ec323 | 2637 | /* This is the i_modulo with the workaround for the _moddi3 bug |
| fce2b89e | 2638 | * in (at least) glibc 2.2.5 (the PERL_ABS() the workaround). |
| 224ec323 | 2639 | * See below for pp_i_modulo. */ |
| 5186cc12 | 2640 | dVAR; dSP; dATARGET; tryAMAGICbin(modulo,opASSIGN); |
| 224ec323 JH |
2641 | { |
| 2642 | dPOPTOPiirl; | |
| 2643 | if (!right) | |
| 2644 | DIE(aTHX_ "Illegal modulus zero"); | |
| a0cec769 YST |
2645 | /* avoid FPE_INTOVF on some platforms when left is IV_MIN */ |
| 2646 | if (right == -1) | |
| 2647 | SETi( 0 ); | |
| 2648 | else | |
| 2649 | SETi( left % PERL_ABS(right) ); | |
| 224ec323 JH |
2650 | RETURN; |
| 2651 | } | |
| 224ec323 JH |
2652 | } |
| 2653 | ||
| a0d0e21e | 2654 | PP(pp_i_modulo) |
| 79072805 | 2655 | { |
| 27da23d5 | 2656 | dVAR; dSP; dATARGET; tryAMAGICbin(modulo,opASSIGN); |
| 224ec323 JH |
2657 | { |
| 2658 | dPOPTOPiirl; | |
| 2659 | if (!right) | |
| 2660 | DIE(aTHX_ "Illegal modulus zero"); | |
| 2661 | /* The assumption is to use hereafter the old vanilla version... */ | |
| 2662 | PL_op->op_ppaddr = | |
| 2663 | PL_ppaddr[OP_I_MODULO] = | |
| 1c127fab | 2664 | Perl_pp_i_modulo_0; |
| 224ec323 JH |
2665 | /* .. but if we have glibc, we might have a buggy _moddi3 |
| 2666 | * (at least glicb 2.2.5 is known to have this bug), in other | |
| 2667 | * words our integer modulus with negative quad as the second | |
| 2668 | * argument might be broken. Test for this and re-patch the | |
| 2669 | * opcode dispatch table if that is the case, remembering to | |
| 2670 | * also apply the workaround so that this first round works | |
| 2671 | * right, too. See [perl #9402] for more information. */ | |
| 224ec323 JH |
2672 | { |
| 2673 | IV l = 3; | |
| 2674 | IV r = -10; | |
| 2675 | /* Cannot do this check with inlined IV constants since | |
| 2676 | * that seems to work correctly even with the buggy glibc. */ | |
| 2677 | if (l % r == -3) { | |
| 2678 | /* Yikes, we have the bug. | |
| 2679 | * Patch in the workaround version. */ | |
| 2680 | PL_op->op_ppaddr = | |
| 2681 | PL_ppaddr[OP_I_MODULO] = | |
| 2682 | &Perl_pp_i_modulo_1; | |
| 2683 | /* Make certain we work right this time, too. */ | |
| 32fdb065 | 2684 | right = PERL_ABS(right); |
| 224ec323 JH |
2685 | } |
| 2686 | } | |
| a0cec769 YST |
2687 | /* avoid FPE_INTOVF on some platforms when left is IV_MIN */ |
| 2688 | if (right == -1) | |
| 2689 | SETi( 0 ); | |
| 2690 | else | |
| 2691 | SETi( left % right ); | |
| 224ec323 JH |
2692 | RETURN; |
| 2693 | } | |
| 79072805 | 2694 | } |
| befad5d1 | 2695 | #endif |
| 79072805 | 2696 | |
| a0d0e21e | 2697 | PP(pp_i_add) |
| 79072805 | 2698 | { |
| 97aff369 | 2699 | dVAR; dSP; dATARGET; tryAMAGICbin(add,opASSIGN); |
| a0d0e21e | 2700 | { |
| 5e66d4f1 | 2701 | dPOPTOPiirl_ul; |
| a0d0e21e LW |
2702 | SETi( left + right ); |
| 2703 | RETURN; | |
| 79072805 | 2704 | } |
| 79072805 LW |
2705 | } |
| 2706 | ||
| a0d0e21e | 2707 | PP(pp_i_subtract) |
| 79072805 | 2708 | { |
| 97aff369 | 2709 | dVAR; dSP; dATARGET; tryAMAGICbin(subtr,opASSIGN); |
| a0d0e21e | 2710 | { |
| 5e66d4f1 | 2711 | dPOPTOPiirl_ul; |
| a0d0e21e LW |
2712 | SETi( left - right ); |
| 2713 | RETURN; | |
| 79072805 | 2714 | } |
| 79072805 LW |
2715 | } |
| 2716 | ||
| a0d0e21e | 2717 | PP(pp_i_lt) |
| 79072805 | 2718 | { |
| 97aff369 | 2719 | dVAR; dSP; tryAMAGICbinSET(lt,0); |
| a0d0e21e LW |
2720 | { |
| 2721 | dPOPTOPiirl; | |
| 54310121 | 2722 | SETs(boolSV(left < right)); |
| a0d0e21e LW |
2723 | RETURN; |
| 2724 | } | |
| 79072805 LW |
2725 | } |
| 2726 | ||
| a0d0e21e | 2727 | PP(pp_i_gt) |
| 79072805 | 2728 | { |
| 97aff369 | 2729 | dVAR; dSP; tryAMAGICbinSET(gt,0); |
| a0d0e21e LW |
2730 | { |
| 2731 | dPOPTOPiirl; | |
| 54310121 | 2732 | SETs(boolSV(left > right)); |
| a0d0e21e LW |
2733 | RETURN; |
| 2734 | } | |
| 79072805 LW |
2735 | } |
| 2736 | ||
| a0d0e21e | 2737 | PP(pp_i_le) |
| 79072805 | 2738 | { |
| 97aff369 | 2739 | dVAR; dSP; tryAMAGICbinSET(le,0); |
| a0d0e21e LW |
2740 | { |
| 2741 | dPOPTOPiirl; | |
| 54310121 | 2742 | SETs(boolSV(left <= right)); |
| a0d0e21e | 2743 | RETURN; |
| 85e6fe83 | 2744 | } |
| 79072805 LW |
2745 | } |
| 2746 | ||
| a0d0e21e | 2747 | PP(pp_i_ge) |
| 79072805 | 2748 | { |
| 97aff369 | 2749 | dVAR; dSP; tryAMAGICbinSET(ge,0); |
| a0d0e21e LW |
2750 | { |
| 2751 | dPOPTOPiirl; | |
| 54310121 | 2752 | SETs(boolSV(left >= right)); |
| a0d0e21e LW |
2753 | RETURN; |
| 2754 | } | |
| 79072805 LW |
2755 | } |
| 2756 | ||
| a0d0e21e | 2757 | PP(pp_i_eq) |
| 79072805 | 2758 | { |
| 97aff369 | 2759 | dVAR; dSP; tryAMAGICbinSET(eq,0); |
| a0d0e21e LW |
2760 | { |
| 2761 | dPOPTOPiirl; | |
| 54310121 | 2762 | SETs(boolSV(left == right)); |
| a0d0e21e LW |
2763 | RETURN; |
| 2764 | } | |
| 79072805 LW |
2765 | } |
| 2766 | ||
| a0d0e21e | 2767 | PP(pp_i_ne) |
| 79072805 | 2768 | { |
| 97aff369 | 2769 | dVAR; dSP; tryAMAGICbinSET(ne,0); |
| a0d0e21e LW |
2770 | { |
| 2771 | dPOPTOPiirl; | |
| 54310121 | 2772 | SETs(boolSV(left != right)); |
| a0d0e21e LW |
2773 | RETURN; |
| 2774 | } | |
| 79072805 LW |
2775 | } |
| 2776 | ||
| a0d0e21e | 2777 | PP(pp_i_ncmp) |
| 79072805 | 2778 | { |
| 97aff369 | 2779 | dVAR; dSP; dTARGET; tryAMAGICbin(ncmp,0); |
| a0d0e21e LW |
2780 | { |
| 2781 | dPOPTOPiirl; | |
| 2782 | I32 value; | |
| 79072805 | 2783 | |
| a0d0e21e | 2784 | if (left > right) |
| 79072805 | 2785 | value = 1; |
| a0d0e21e | 2786 | else if (left < right) |
| 79072805 | 2787 | value = -1; |
| a0d0e21e | 2788 | else |
| 79072805 | 2789 | value = 0; |
| a0d0e21e LW |
2790 | SETi(value); |
| 2791 | RETURN; | |
| 79072805 | 2792 | } |
| 85e6fe83 LW |
2793 | } |
| 2794 | ||
| 2795 | PP(pp_i_negate) | |
| 2796 | { | |
| 97aff369 | 2797 | dVAR; dSP; dTARGET; tryAMAGICun(neg); |
| 85e6fe83 LW |
2798 | SETi(-TOPi); |
| 2799 | RETURN; | |
| 2800 | } | |
| 2801 | ||
| 79072805 LW |
2802 | /* High falutin' math. */ |
| 2803 | ||
| 2804 | PP(pp_atan2) | |
| 2805 | { | |
| 97aff369 | 2806 | dVAR; dSP; dTARGET; tryAMAGICbin(atan2,0); |
| a0d0e21e LW |
2807 | { |
| 2808 | dPOPTOPnnrl; | |
| a1021d57 | 2809 | SETn(Perl_atan2(left, right)); |
| a0d0e21e LW |
2810 | RETURN; |
| 2811 | } | |
| 79072805 LW |
2812 | } |
| 2813 | ||
| 2814 | PP(pp_sin) | |
| 2815 | { | |
| 71302fe3 NC |
2816 | dVAR; dSP; dTARGET; |
| 2817 | int amg_type = sin_amg; | |
| 2818 | const char *neg_report = NULL; | |
| bc81784a | 2819 | NV (*func)(NV) = Perl_sin; |
| 71302fe3 NC |
2820 | const int op_type = PL_op->op_type; |
| 2821 | ||
| 2822 | switch (op_type) { | |
| 2823 | case OP_COS: | |
| 2824 | amg_type = cos_amg; | |
| bc81784a | 2825 | func = Perl_cos; |
| 71302fe3 NC |
2826 | break; |
| 2827 | case OP_EXP: | |
| 2828 | amg_type = exp_amg; | |
| bc81784a | 2829 | func = Perl_exp; |
| 71302fe3 NC |
2830 | break; |
| 2831 | case OP_LOG: | |
| 2832 | amg_type = log_amg; | |
| bc81784a | 2833 | func = Perl_log; |
| 71302fe3 NC |
2834 | neg_report = "log"; |
| 2835 | break; | |
| 2836 | case OP_SQRT: | |
| 2837 | amg_type = sqrt_amg; | |
| bc81784a | 2838 | func = Perl_sqrt; |
| 71302fe3 NC |
2839 | neg_report = "sqrt"; |
| 2840 | break; | |
| a0d0e21e | 2841 | } |
| 79072805 | 2842 | |
| 71302fe3 | 2843 | tryAMAGICun_var(amg_type); |
| a0d0e21e | 2844 | { |
| 1b6737cc | 2845 | const NV value = POPn; |
| 71302fe3 NC |
2846 | if (neg_report) { |
| 2847 | if (op_type == OP_LOG ? (value <= 0.0) : (value < 0.0)) { | |
| 2848 | SET_NUMERIC_STANDARD(); | |
| 2849 | DIE(aTHX_ "Can't take %s of %"NVgf, neg_report, value); | |
| 2850 | } | |
| 2851 | } | |
| 2852 | XPUSHn(func(value)); | |
| a0d0e21e LW |
2853 | RETURN; |
| 2854 | } | |
| 79072805 LW |
2855 | } |
| 2856 | ||
| 56cb0a1c AD |
2857 | /* Support Configure command-line overrides for rand() functions. |
| 2858 | After 5.005, perhaps we should replace this by Configure support | |
| 2859 | for drand48(), random(), or rand(). For 5.005, though, maintain | |
| 2860 | compatibility by calling rand() but allow the user to override it. | |
| 2861 | See INSTALL for details. --Andy Dougherty 15 July 1998 | |
| 2862 | */ | |
| 85ab1d1d JH |
2863 | /* Now it's after 5.005, and Configure supports drand48() and random(), |
| 2864 | in addition to rand(). So the overrides should not be needed any more. | |
| 2865 | --Jarkko Hietaniemi 27 September 1998 | |
| 2866 | */ | |
| 2867 | ||
| 2868 | #ifndef HAS_DRAND48_PROTO | |
| 20ce7b12 | 2869 | extern double drand48 (void); |
| 56cb0a1c AD |
2870 | #endif |
| 2871 | ||
| 79072805 LW |
2872 | PP(pp_rand) |
| 2873 | { | |
| 97aff369 | 2874 | dVAR; dSP; dTARGET; |
| 65202027 | 2875 | NV value; |
| 79072805 LW |
2876 | if (MAXARG < 1) |
| 2877 | value = 1.0; | |
| 2878 | else | |
| 2879 | value = POPn; | |
| 2880 | if (value == 0.0) | |
| 2881 | value = 1.0; | |
| 80252599 | 2882 | if (!PL_srand_called) { |
| 85ab1d1d | 2883 | (void)seedDrand01((Rand_seed_t)seed()); |
| 80252599 | 2884 | PL_srand_called = TRUE; |
| 93dc8474 | 2885 | } |
| 85ab1d1d | 2886 | value *= Drand01(); |
| 79072805 LW |
2887 | XPUSHn(value); |
| 2888 | RETURN; | |
| 2889 | } | |
| 2890 | ||
| 2891 | PP(pp_srand) | |
| 2892 | { | |
| 97aff369 | 2893 | dVAR; dSP; |
| 0bd48802 | 2894 | const UV anum = (MAXARG < 1) ? seed() : POPu; |
| 85ab1d1d | 2895 | (void)seedDrand01((Rand_seed_t)anum); |
| 80252599 | 2896 | PL_srand_called = TRUE; |
| 79072805 LW |
2897 | EXTEND(SP, 1); |
| 2898 | RETPUSHYES; | |
| 2899 | } | |
| 2900 | ||
| 79072805 LW |
2901 | PP(pp_int) |
| 2902 | { | |
| 97aff369 | 2903 | dVAR; dSP; dTARGET; tryAMAGICun(int); |
| 774d564b | 2904 | { |
| 800401ee JH |
2905 | SV * const sv = sv_2num(TOPs); |
| 2906 | const IV iv = SvIV(sv); | |
| 28e5dec8 JH |
2907 | /* XXX it's arguable that compiler casting to IV might be subtly |
| 2908 | different from modf (for numbers inside (IV_MIN,UV_MAX)) in which | |
| 2909 | else preferring IV has introduced a subtle behaviour change bug. OTOH | |
| 2910 | relying on floating point to be accurate is a bug. */ | |
| 2911 | ||
| c781a409 | 2912 | if (!SvOK(sv)) { |
| 922c4365 | 2913 | SETu(0); |
| c781a409 RD |
2914 | } |
| 2915 | else if (SvIOK(sv)) { | |
| 2916 | if (SvIsUV(sv)) | |
| 2917 | SETu(SvUV(sv)); | |
| 2918 | else | |
| 28e5dec8 | 2919 | SETi(iv); |
| c781a409 | 2920 | } |
| c781a409 RD |
2921 | else { |
| 2922 | const NV value = SvNV(sv); | |
| 1048ea30 | 2923 | if (value >= 0.0) { |
| 28e5dec8 JH |
2924 | if (value < (NV)UV_MAX + 0.5) { |
| 2925 | SETu(U_V(value)); | |
| 2926 | } else { | |
| 059a1014 | 2927 | SETn(Perl_floor(value)); |
| 28e5dec8 | 2928 | } |
| 1048ea30 | 2929 | } |
| 28e5dec8 JH |
2930 | else { |
| 2931 | if (value > (NV)IV_MIN - 0.5) { | |
| 2932 | SETi(I_V(value)); | |
| 2933 | } else { | |
| 1bbae031 | 2934 | SETn(Perl_ceil(value)); |
| 28e5dec8 JH |
2935 | } |
| 2936 | } | |
| 774d564b | 2937 | } |
| 79072805 | 2938 | } |
| 79072805 LW |
2939 | RETURN; |
| 2940 | } | |
| 2941 | ||
| 463ee0b2 LW |
2942 | PP(pp_abs) |
| 2943 | { | |
| 97aff369 | 2944 | dVAR; dSP; dTARGET; tryAMAGICun(abs); |
| a0d0e21e | 2945 | { |
| 800401ee | 2946 | SV * const sv = sv_2num(TOPs); |
| 28e5dec8 | 2947 | /* This will cache the NV value if string isn't actually integer */ |
| 800401ee | 2948 | const IV iv = SvIV(sv); |
| a227d84d | 2949 | |
| 800401ee | 2950 | if (!SvOK(sv)) { |
| 922c4365 | 2951 | SETu(0); |
| 800401ee JH |
2952 | } |
| 2953 | else if (SvIOK(sv)) { | |
| 28e5dec8 | 2954 | /* IVX is precise */ |
| 800401ee JH |
2955 | if (SvIsUV(sv)) { |
| 2956 | SETu(SvUV(sv)); /* force it to be numeric only */ | |
| 28e5dec8 JH |
2957 | } else { |
| 2958 | if (iv >= 0) { | |
| 2959 | SETi(iv); | |
| 2960 | } else { | |
| 2961 | if (iv != IV_MIN) { | |
| 2962 | SETi(-iv); | |
| 2963 | } else { | |
| 2964 | /* 2s complement assumption. Also, not really needed as | |
| 2965 | IV_MIN and -IV_MIN should both be %100...00 and NV-able */ | |
| 2966 | SETu(IV_MIN); | |
| 2967 | } | |
| a227d84d | 2968 | } |
| 28e5dec8 JH |
2969 | } |
| 2970 | } else{ | |
| 800401ee | 2971 | const NV value = SvNV(sv); |
| 774d564b | 2972 | if (value < 0.0) |
| 1b6737cc | 2973 | SETn(-value); |
| a4474c9e DD |
2974 | else |
| 2975 | SETn(value); | |
| 774d564b | 2976 | } |
| a0d0e21e | 2977 | } |
| 774d564b | 2978 | RETURN; |
| 463ee0b2 LW |
2979 | } |
| 2980 | ||
| 79072805 LW |
2981 | PP(pp_oct) |
| 2982 | { | |
| 97aff369 | 2983 | dVAR; dSP; dTARGET; |
| 5c144d81 | 2984 | const char *tmps; |
| 53305cf1 | 2985 | I32 flags = PERL_SCAN_ALLOW_UNDERSCORES; |
| 6f894ead | 2986 | STRLEN len; |
| 53305cf1 NC |
2987 | NV result_nv; |
| 2988 | UV result_uv; | |
| 1b6737cc | 2989 | SV* const sv = POPs; |
| 79072805 | 2990 | |
| 349d4f2f | 2991 | tmps = (SvPV_const(sv, len)); |
| 2bc69dc4 NIS |
2992 | if (DO_UTF8(sv)) { |
| 2993 | /* If Unicode, try to downgrade | |
| 2994 | * If not possible, croak. */ | |
| 1b6737cc | 2995 | SV* const tsv = sv_2mortal(newSVsv(sv)); |
| 2bc69dc4 NIS |
2996 | |
| 2997 | SvUTF8_on(tsv); | |
| 2998 | sv_utf8_downgrade(tsv, FALSE); | |
| 349d4f2f | 2999 | tmps = SvPV_const(tsv, len); |
| 2bc69dc4 | 3000 | } |
| daa2adfd NC |
3001 | if (PL_op->op_type == OP_HEX) |
| 3002 | goto hex; | |
| 3003 | ||
| 6f894ead | 3004 | while (*tmps && len && isSPACE(*tmps)) |
| 53305cf1 | 3005 | tmps++, len--; |
| 9e24b6e2 | 3006 | if (*tmps == '0') |
| 53305cf1 | 3007 | tmps++, len--; |
| daa2adfd NC |
3008 | if (*tmps == 'x') { |
| 3009 | hex: | |
| 53305cf1 | 3010 | result_uv = grok_hex (tmps, &len, &flags, &result_nv); |
| daa2adfd | 3011 | } |
| 9e24b6e2 | 3012 | else if (*tmps == 'b') |
| 53305cf1 | 3013 | result_uv = grok_bin (tmps, &len, &flags, &result_nv); |
| 464e2e8a | 3014 | else |
| 53305cf1 NC |
3015 | result_uv = grok_oct (tmps, &len, &flags, &result_nv); |
| 3016 | ||
| 3017 | if (flags & PERL_SCAN_GREATER_THAN_UV_MAX) { | |
| 3018 | XPUSHn(result_nv); | |
| 3019 | } | |
| 3020 | else { | |
| 3021 | XPUSHu(result_uv); | |
| 3022 | } | |
| 79072805 LW |
3023 | RETURN; |
| 3024 | } | |
| 3025 | ||
| 3026 | /* String stuff. */ | |
| 3027 | ||
| 3028 | PP(pp_length) | |
| 3029 | { | |
| 97aff369 | 3030 | dVAR; dSP; dTARGET; |
| 0bd48802 | 3031 | SV * const sv = TOPs; |
| a0ed51b3 | 3032 | |
| 656266fc | 3033 | if (SvGAMAGIC(sv)) { |
| 9f621bb0 NC |
3034 | /* For an overloaded or magic scalar, we can't know in advance if |
| 3035 | it's going to be UTF-8 or not. Also, we can't call sv_len_utf8 as | |
| 3036 | it likes to cache the length. Maybe that should be a documented | |
| 3037 | feature of it. | |
| 92331800 NC |
3038 | */ |
| 3039 | STRLEN len; | |
| 9f621bb0 NC |
3040 | const char *const p |
| 3041 | = sv_2pv_flags(sv, &len, | |
| 3042 | SV_UNDEF_RETURNS_NULL|SV_CONST_RETURN|SV_GMAGIC); | |
| 92331800 | 3043 | |
| 9f621bb0 NC |
3044 | if (!p) |
| 3045 | SETs(&PL_sv_undef); | |
| 3046 | else if (DO_UTF8(sv)) { | |
| 899be101 | 3047 | SETi(utf8_length((U8*)p, (U8*)p + len)); |
| 92331800 NC |
3048 | } |
| 3049 | else | |
| 3050 | SETi(len); | |
| 656266fc | 3051 | } else if (SvOK(sv)) { |
| 9f621bb0 NC |
3052 | /* Neither magic nor overloaded. */ |
| 3053 | if (DO_UTF8(sv)) | |
| 3054 | SETi(sv_len_utf8(sv)); | |
| 3055 | else | |
| 3056 | SETi(sv_len(sv)); | |
| 656266fc NC |
3057 | } else { |
| 3058 | SETs(&PL_sv_undef); | |
| 92331800 | 3059 | } |
| 79072805 LW |
3060 | RETURN; |
| 3061 | } | |
| 3062 | ||
| 3063 | PP(pp_substr) | |
| 3064 | { | |
| 97aff369 | 3065 | dVAR; dSP; dTARGET; |
| 79072805 | 3066 | SV *sv; |
| 9c5ffd7c | 3067 | I32 len = 0; |
| 463ee0b2 | 3068 | STRLEN curlen; |
| 9402d6ed | 3069 | STRLEN utf8_curlen; |
| 79072805 LW |
3070 | I32 pos; |
| 3071 | I32 rem; | |
| 84902520 | 3072 | I32 fail; |
| 050e6362 | 3073 | const I32 lvalue = PL_op->op_flags & OPf_MOD || LVRET; |
| e1ec3a88 | 3074 | const char *tmps; |
| fc15ae8f | 3075 | const I32 arybase = CopARYBASE_get(PL_curcop); |
| 9402d6ed | 3076 | SV *repl_sv = NULL; |
| cbbf8932 | 3077 | const char *repl = NULL; |
| 7b8d334a | 3078 | STRLEN repl_len; |
| 050e6362 | 3079 | const int num_args = PL_op->op_private & 7; |
| 13e30c65 | 3080 | bool repl_need_utf8_upgrade = FALSE; |
| 9402d6ed | 3081 | bool repl_is_utf8 = FALSE; |
| 79072805 | 3082 | |
| 20408e3c | 3083 | SvTAINTED_off(TARG); /* decontaminate */ |
| 7e2040f0 | 3084 | SvUTF8_off(TARG); /* decontaminate */ |
| 78f9721b SM |
3085 | if (num_args > 2) { |
| 3086 | if (num_args > 3) { | |
| 9402d6ed | 3087 | repl_sv = POPs; |
| 83003860 | 3088 | repl = SvPV_const(repl_sv, repl_len); |
| 9402d6ed | 3089 | repl_is_utf8 = DO_UTF8(repl_sv) && SvCUR(repl_sv); |
| 7b8d334a | 3090 | } |
| 79072805 | 3091 | len = POPi; |
| 5d82c453 | 3092 | } |
| 84902520 | 3093 | pos = POPi; |
| 79072805 | 3094 | sv = POPs; |
| 849ca7ee | 3095 | PUTBACK; |
| 9402d6ed JH |
3096 | if (repl_sv) { |
| 3097 | if (repl_is_utf8) { | |
| 3098 | if (!DO_UTF8(sv)) | |
| 3099 | sv_utf8_upgrade(sv); | |
| 3100 | } | |
| 13e30c65 JH |
3101 | else if (DO_UTF8(sv)) |
| 3102 | repl_need_utf8_upgrade = TRUE; | |
| 9402d6ed | 3103 | } |
| 5c144d81 | 3104 | tmps = SvPV_const(sv, curlen); |
| 7e2040f0 | 3105 | if (DO_UTF8(sv)) { |
| 9402d6ed JH |
3106 | utf8_curlen = sv_len_utf8(sv); |
| 3107 | if (utf8_curlen == curlen) | |
| 3108 | utf8_curlen = 0; | |
| a0ed51b3 | 3109 | else |
| 9402d6ed | 3110 | curlen = utf8_curlen; |
| a0ed51b3 | 3111 | } |
| d1c2b58a | 3112 | else |
| 9402d6ed | 3113 | utf8_curlen = 0; |
| a0ed51b3 | 3114 | |
| 84902520 TB |
3115 | if (pos >= arybase) { |
| 3116 | pos -= arybase; | |
| 3117 | rem = curlen-pos; | |
| 3118 | fail = rem; | |
| 78f9721b | 3119 | if (num_args > 2) { |
| 5d82c453 GA |
3120 | if (len < 0) { |
| 3121 | rem += len; | |
| 3122 | if (rem < 0) | |
| 3123 | rem = 0; | |
| 3124 | } | |
| 3125 | else if (rem > len) | |
| 3126 | rem = len; | |
| 3127 | } | |
| 68dc0745 | 3128 | } |
| 84902520 | 3129 | else { |
| 5d82c453 | 3130 | pos += curlen; |
| 78f9721b | 3131 | if (num_args < 3) |
| 5d82c453 GA |
3132 | rem = curlen; |
| 3133 | else if (len >= 0) { | |
| 3134 | rem = pos+len; | |
| 3135 | if (rem > (I32)curlen) | |
| 3136 | rem = curlen; | |
| 3137 | } | |
| 3138 | else { | |
| 3139 | rem = curlen+len; | |
| 3140 | if (rem < pos) | |
| 3141 | rem = pos; | |
| 3142 | } | |
| 3143 | if (pos < 0) | |
| 3144 | pos = 0; | |
| 3145 | fail = rem; | |
| 3146 | rem -= pos; | |
| 84902520 TB |
3147 | } |
| 3148 | if (fail < 0) { | |
| e476b1b5 GS |
3149 | if (lvalue || repl) |
| 3150 | Perl_croak(aTHX_ "substr outside of string"); | |
| a2a5de95 | 3151 | Perl_ck_warner(aTHX_ packWARN(WARN_SUBSTR), "substr outside of string"); |
| 2304df62 AD |
3152 | RETPUSHUNDEF; |
| 3153 | } | |
| 79072805 | 3154 | else { |
| 1b6737cc AL |
3155 | const I32 upos = pos; |
| 3156 | const I32 urem = rem; | |
| 9402d6ed | 3157 | if (utf8_curlen) |
| a0ed51b3 | 3158 | sv_pos_u2b(sv, &pos, &rem); |
| 79072805 | 3159 | tmps += pos; |
| 781e7547 DM |
3160 | /* we either return a PV or an LV. If the TARG hasn't been used |
| 3161 | * before, or is of that type, reuse it; otherwise use a mortal | |
| 3162 | * instead. Note that LVs can have an extended lifetime, so also | |
| 3163 | * dont reuse if refcount > 1 (bug #20933) */ | |
| 3164 | if (SvTYPE(TARG) > SVt_NULL) { | |
| 3165 | if ( (SvTYPE(TARG) == SVt_PVLV) | |
| 3166 | ? (!lvalue || SvREFCNT(TARG) > 1) | |
| 3167 | : lvalue) | |
| 3168 | { | |
| 3169 | TARG = sv_newmortal(); | |
| 3170 | } | |
| 3171 | } | |
| 3172 | ||
| 050e6362 | 3173 | sv_setpvn(TARG, tmps, rem); |
| 12aa1545 | 3174 | #ifdef USE_LOCALE_COLLATE |
| 14befaf4 | 3175 | sv_unmagic(TARG, PERL_MAGIC_collxfrm); |
| 12aa1545 | 3176 | #endif |
| 9402d6ed | 3177 | if (utf8_curlen) |
| 7f66633b | 3178 | SvUTF8_on(TARG); |
| f7928d6c | 3179 | if (repl) { |
| 13e30c65 JH |
3180 | SV* repl_sv_copy = NULL; |
| 3181 | ||
| 3182 | if (repl_need_utf8_upgrade) { | |
| 3183 | repl_sv_copy = newSVsv(repl_sv); | |
| 3184 | sv_utf8_upgrade(repl_sv_copy); | |
| 349d4f2f | 3185 | repl = SvPV_const(repl_sv_copy, repl_len); |
| 13e30c65 JH |
3186 | repl_is_utf8 = DO_UTF8(repl_sv_copy) && SvCUR(sv); |
| 3187 | } | |
| 502d9230 VP |
3188 | if (!SvOK(sv)) |
| 3189 | sv_setpvs(sv, ""); | |
| c0dd94a0 | 3190 | sv_insert_flags(sv, pos, rem, repl, repl_len, 0); |
| 9402d6ed | 3191 | if (repl_is_utf8) |
| f7928d6c | 3192 | SvUTF8_on(sv); |
| 9402d6ed JH |
3193 | if (repl_sv_copy) |
| 3194 | SvREFCNT_dec(repl_sv_copy); | |
| f7928d6c | 3195 | } |
| c8faf1c5 | 3196 | else if (lvalue) { /* it's an lvalue! */ |
| dedeecda | 3197 | if (!SvGMAGICAL(sv)) { |
| 3198 | if (SvROK(sv)) { | |
| 13c5b33c | 3199 | SvPV_force_nolen(sv); |
| a2a5de95 NC |
3200 | Perl_ck_warner(aTHX_ packWARN(WARN_SUBSTR), |
| 3201 | "Attempt to use reference as lvalue in substr"); | |
| dedeecda | 3202 | } |
| f7877b28 NC |
3203 | if (isGV_with_GP(sv)) |
| 3204 | SvPV_force_nolen(sv); | |
| 3205 | else if (SvOK(sv)) /* is it defined ? */ | |
| 7f66633b | 3206 | (void)SvPOK_only_UTF8(sv); |
| dedeecda | 3207 | else |
| 523f125d | 3208 | sv_setpvs(sv, ""); /* avoid lexical reincarnation */ |
| dedeecda | 3209 | } |
| 5f05dabc | 3210 | |
| a0d0e21e LW |
3211 | if (SvTYPE(TARG) < SVt_PVLV) { |
| 3212 | sv_upgrade(TARG, SVt_PVLV); | |
| c445ea15 | 3213 | sv_magic(TARG, NULL, PERL_MAGIC_substr, NULL, 0); |
| ed6116ce | 3214 | } |
| a0d0e21e | 3215 | |
| 5f05dabc | 3216 | LvTYPE(TARG) = 'x'; |
| 6ff81951 GS |
3217 | if (LvTARG(TARG) != sv) { |
| 3218 | if (LvTARG(TARG)) | |
| 3219 | SvREFCNT_dec(LvTARG(TARG)); | |
| b37c2d43 | 3220 | LvTARG(TARG) = SvREFCNT_inc_simple(sv); |
| 6ff81951 | 3221 | } |
| 9aa983d2 JH |
3222 | LvTARGOFF(TARG) = upos; |
| 3223 | LvTARGLEN(TARG) = urem; | |
| 79072805 LW |
3224 | } |
| 3225 | } | |
| 849ca7ee | 3226 | SPAGAIN; |
| 79072805 LW |
3227 | PUSHs(TARG); /* avoid SvSETMAGIC here */ |
| 3228 | RETURN; | |
| 3229 | } | |
| 3230 | ||
| 3231 | PP(pp_vec) | |
| 3232 | { | |
| 97aff369 | 3233 | dVAR; dSP; dTARGET; |
| 1b6737cc AL |
3234 | register const IV size = POPi; |
| 3235 | register const IV offset = POPi; | |
| 3236 | register SV * const src = POPs; | |
| 3237 | const I32 lvalue = PL_op->op_flags & OPf_MOD || LVRET; | |
| a0d0e21e | 3238 | |
| 81e118e0 JH |
3239 | SvTAINTED_off(TARG); /* decontaminate */ |
| 3240 | if (lvalue) { /* it's an lvalue! */ | |
| 24aef97f HS |
3241 | if (SvREFCNT(TARG) > 1) /* don't share the TARG (#20933) */ |
| 3242 | TARG = sv_newmortal(); | |
| 81e118e0 JH |
3243 | if (SvTYPE(TARG) < SVt_PVLV) { |
| 3244 | sv_upgrade(TARG, SVt_PVLV); | |
| c445ea15 | 3245 | sv_magic(TARG, NULL, PERL_MAGIC_vec, NULL, 0); |
| 79072805 | 3246 | } |
| 81e118e0 JH |
3247 | LvTYPE(TARG) = 'v'; |
| 3248 | if (LvTARG(TARG) != src) { | |
| 3249 | if (LvTARG(TARG)) | |
| 3250 | SvREFCNT_dec(LvTARG(TARG)); | |
| b37c2d43 | 3251 | LvTARG(TARG) = SvREFCNT_inc_simple(src); |
| 79072805 | 3252 | } |
| 81e118e0 JH |
3253 | LvTARGOFF(TARG) = offset; |
| 3254 | LvTARGLEN(TARG) = size; | |
| 79072805 LW |
3255 | } |
| 3256 | ||
| 81e118e0 | 3257 | sv_setuv(TARG, do_vecget(src, offset, size)); |
| 79072805 LW |
3258 | PUSHs(TARG); |
| 3259 | RETURN; | |
| 3260 | } | |
| 3261 | ||
| 3262 | PP(pp_index) | |
| 3263 | { | |
| 97aff369 | 3264 | dVAR; dSP; dTARGET; |
| 79072805 LW |
3265 | SV *big; |
| 3266 | SV *little; | |
| c445ea15 | 3267 | SV *temp = NULL; |
| ad66a58c | 3268 | STRLEN biglen; |
| 2723d216 | 3269 | STRLEN llen = 0; |
| 79072805 LW |
3270 | I32 offset; |
| 3271 | I32 retval; | |
| 73ee8be2 NC |
3272 | const char *big_p; |
| 3273 | const char *little_p; | |
| fc15ae8f | 3274 | const I32 arybase = CopARYBASE_get(PL_curcop); |
| 2f040f7f NC |
3275 | bool big_utf8; |
| 3276 | bool little_utf8; | |
| 2723d216 | 3277 | const bool is_index = PL_op->op_type == OP_INDEX; |
| 79072805 | 3278 | |
| 2723d216 NC |
3279 | if (MAXARG >= 3) { |
| 3280 | /* arybase is in characters, like offset, so combine prior to the | |
| 3281 | UTF-8 to bytes calculation. */ | |
| 79072805 | 3282 | offset = POPi - arybase; |
| 2723d216 | 3283 | } |
| 79072805 LW |
3284 | little = POPs; |
| 3285 | big = POPs; | |
| 73ee8be2 NC |
3286 | big_p = SvPV_const(big, biglen); |
| 3287 | little_p = SvPV_const(little, llen); | |
| 3288 | ||
| e609e586 NC |
3289 | big_utf8 = DO_UTF8(big); |
| 3290 | little_utf8 = DO_UTF8(little); | |
| 3291 | if (big_utf8 ^ little_utf8) { | |
| 3292 | /* One needs to be upgraded. */ | |
| 2f040f7f NC |
3293 | if (little_utf8 && !PL_encoding) { |
| 3294 | /* Well, maybe instead we might be able to downgrade the small | |
| 3295 | string? */ | |
| 1eced8f8 | 3296 | char * const pv = (char*)bytes_from_utf8((U8 *)little_p, &llen, |
| 2f040f7f NC |
3297 | &little_utf8); |
| 3298 | if (little_utf8) { | |
| 3299 | /* If the large string is ISO-8859-1, and it's not possible to | |
| 3300 | convert the small string to ISO-8859-1, then there is no | |
| 3301 | way that it could be found anywhere by index. */ | |
| 3302 | retval = -1; | |
| 3303 | goto fail; | |
| 3304 | } | |
| e609e586 | 3305 | |
| 2f040f7f NC |
3306 | /* At this point, pv is a malloc()ed string. So donate it to temp |
| 3307 | to ensure it will get free()d */ | |
| 3308 | little = temp = newSV(0); | |
| 73ee8be2 NC |
3309 | sv_usepvn(temp, pv, llen); |
| 3310 | little_p = SvPVX(little); | |
| e609e586 | 3311 | } else { |
| 73ee8be2 NC |
3312 | temp = little_utf8 |
| 3313 | ? newSVpvn(big_p, biglen) : newSVpvn(little_p, llen); | |
| 2f040f7f NC |
3314 | |
| 3315 | if (PL_encoding) { | |
| 3316 | sv_recode_to_utf8(temp, PL_encoding); | |
| 3317 | } else { | |
| 3318 | sv_utf8_upgrade(temp); | |
| 3319 | } | |
| 3320 | if (little_utf8) { | |
| 3321 | big = temp; | |
| 3322 | big_utf8 = TRUE; | |
| 73ee8be2 | 3323 | big_p = SvPV_const(big, biglen); |
| 2f040f7f NC |
3324 | } else { |
| 3325 | little = temp; | |
| 73ee8be2 | 3326 | little_p = SvPV_const(little, llen); |
| 2f040f7f | 3327 | } |
| e609e586 NC |
3328 | } |
| 3329 | } | |
| 73ee8be2 NC |
3330 | if (SvGAMAGIC(big)) { |
| 3331 | /* Life just becomes a lot easier if I use a temporary here. | |
| 3332 | Otherwise I need to avoid calls to sv_pos_u2b(), which (dangerously) | |
| 3333 | will trigger magic and overloading again, as will fbm_instr() | |
| 3334 | */ | |
| 59cd0e26 NC |
3335 | big = newSVpvn_flags(big_p, biglen, |
| 3336 | SVs_TEMP | (big_utf8 ? SVf_UTF8 : 0)); | |
| 73ee8be2 NC |
3337 | big_p = SvPVX(big); |
| 3338 | } | |
| e4e44778 | 3339 | if (SvGAMAGIC(little) || (is_index && !SvOK(little))) { |
| 73ee8be2 NC |
3340 | /* index && SvOK() is a hack. fbm_instr() calls SvPV_const, which will |
| 3341 | warn on undef, and we've already triggered a warning with the | |
| 3342 | SvPV_const some lines above. We can't remove that, as we need to | |
| 3343 | call some SvPV to trigger overloading early and find out if the | |
| 3344 | string is UTF-8. | |
| 3345 | This is all getting to messy. The API isn't quite clean enough, | |
| 3346 | because data access has side effects. | |
| 3347 | */ | |
| 59cd0e26 NC |
3348 | little = newSVpvn_flags(little_p, llen, |
| 3349 | SVs_TEMP | (little_utf8 ? SVf_UTF8 : 0)); | |
| 73ee8be2 NC |
3350 | little_p = SvPVX(little); |
| 3351 | } | |
| e609e586 | 3352 | |
| 79072805 | 3353 | if (MAXARG < 3) |
| 2723d216 | 3354 | offset = is_index ? 0 : biglen; |
| a0ed51b3 | 3355 | else { |
| ad66a58c | 3356 | if (big_utf8 && offset > 0) |
| a0ed51b3 | 3357 | sv_pos_u2b(big, &offset, 0); |
| 73ee8be2 NC |
3358 | if (!is_index) |
| 3359 | offset += llen; | |
| a0ed51b3 | 3360 | } |
| 79072805 LW |
3361 | if (offset < 0) |
| 3362 | offset = 0; | |
| ad66a58c NC |
3363 | else if (offset > (I32)biglen) |
| 3364 | offset = biglen; | |
| 73ee8be2 NC |
3365 | if (!(little_p = is_index |
| 3366 | ? fbm_instr((unsigned char*)big_p + offset, | |
| 3367 | (unsigned char*)big_p + biglen, little, 0) | |
| 3368 | : rninstr(big_p, big_p + offset, | |
| 3369 | little_p, little_p + llen))) | |
| a0ed51b3 | 3370 | retval = -1; |
| ad66a58c | 3371 | else { |
| 73ee8be2 | 3372 | retval = little_p - big_p; |
| ad66a58c NC |
3373 | if (retval > 0 && big_utf8) |
| 3374 | sv_pos_b2u(big, &retval); | |
| 3375 | } | |
| e609e586 NC |
3376 | if (temp) |
| 3377 | SvREFCNT_dec(temp); | |
| 2723d216 | 3378 | fail: |
| a0ed51b3 | 3379 | PUSHi(retval + arybase); |
| 79072805 LW |
3380 | RETURN; |
| 3381 | } | |
| 3382 | ||
| 3383 | PP(pp_sprintf) | |
| 3384 | { | |
| 97aff369 | 3385 | dVAR; dSP; dMARK; dORIGMARK; dTARGET; |
| 20ee07fb RGS |
3386 | if (SvTAINTED(MARK[1])) |
| 3387 | TAINT_PROPER("sprintf"); | |
| 79072805 | 3388 | do_sprintf(TARG, SP-MARK, MARK+1); |
| bbce6d69 | 3389 | TAINT_IF(SvTAINTED(TARG)); |
| 79072805 LW |
3390 | SP = ORIGMARK; |
| 3391 | PUSHTARG; | |
| 3392 | RETURN; | |
| 3393 | } | |
| 3394 | ||
| 79072805 LW |
3395 | PP(pp_ord) |
| 3396 | { | |
| 97aff369 | 3397 | dVAR; dSP; dTARGET; |
| 1eced8f8 | 3398 | |
| 7df053ec | 3399 | SV *argsv = POPs; |
| ba210ebe | 3400 | STRLEN len; |
| 349d4f2f | 3401 | const U8 *s = (U8*)SvPV_const(argsv, len); |
| 121910a4 | 3402 | |
| 799ef3cb | 3403 | if (PL_encoding && SvPOK(argsv) && !DO_UTF8(argsv)) { |
| 1eced8f8 | 3404 | SV * const tmpsv = sv_2mortal(newSVsv(argsv)); |
| 799ef3cb | 3405 | s = (U8*)sv_recode_to_utf8(tmpsv, PL_encoding); |
| 121910a4 JH |
3406 | argsv = tmpsv; |
| 3407 | } | |
| 79072805 | 3408 | |
| 872c91ae | 3409 | XPUSHu(DO_UTF8(argsv) ? |
| 89ebb4a3 | 3410 | utf8n_to_uvchr(s, UTF8_MAXBYTES, 0, UTF8_ALLOW_ANYUV) : |
| 5fc32dea | 3411 | (UV)(*s & 0xff)); |
| 68795e93 | 3412 | |
| 79072805 LW |
3413 | RETURN; |
| 3414 | } | |
| 3415 | ||
| 463ee0b2 LW |
3416 | PP(pp_chr) |
| 3417 | { | |
| 97aff369 | 3418 | dVAR; dSP; dTARGET; |
| 463ee0b2 | 3419 | char *tmps; |
| 8a064bd6 JH |
3420 | UV value; |
| 3421 | ||
| 3422 | if (((SvIOK_notUV(TOPs) && SvIV(TOPs) < 0) | |
| 3423 | || | |
| 3424 | (SvNOK(TOPs) && SvNV(TOPs) < 0.0))) { | |
| 3425 | if (IN_BYTES) { | |
| 3426 | value = POPu; /* chr(-1) eq chr(0xff), etc. */ | |
| 3427 | } else { | |
| 3428 | (void) POPs; /* Ignore the argument value. */ | |
| 3429 | value = UNICODE_REPLACEMENT; | |
| 3430 | } | |
| 3431 | } else { | |
| 3432 | value = POPu; | |
| 3433 | } | |
| 463ee0b2 | 3434 | |
| 862a34c6 | 3435 | SvUPGRADE(TARG,SVt_PV); |
| a0ed51b3 | 3436 | |
| 0064a8a9 | 3437 | if (value > 255 && !IN_BYTES) { |
| eb160463 | 3438 | SvGROW(TARG, (STRLEN)UNISKIP(value)+1); |
| 62961d2e | 3439 | tmps = (char*)uvchr_to_utf8_flags((U8*)SvPVX(TARG), value, 0); |
| 349d4f2f | 3440 | SvCUR_set(TARG, tmps - SvPVX_const(TARG)); |
| a0ed51b3 LW |
3441 | *tmps = '\0'; |
| 3442 | (void)SvPOK_only(TARG); | |
| aa6ffa16 | 3443 | SvUTF8_on(TARG); |
| a0ed51b3 LW |
3444 | XPUSHs(TARG); |
| 3445 | RETURN; | |
| 3446 | } | |
| 3447 | ||
| 748a9306 | 3448 | SvGROW(TARG,2); |
| 463ee0b2 LW |
3449 | SvCUR_set(TARG, 1); |
| 3450 | tmps = SvPVX(TARG); | |
| eb160463 | 3451 | *tmps++ = (char)value; |
| 748a9306 | 3452 | *tmps = '\0'; |
| a0d0e21e | 3453 | (void)SvPOK_only(TARG); |
| 4c5ed6e2 | 3454 | |
| 88632417 | 3455 | if (PL_encoding && !IN_BYTES) { |
| 799ef3cb | 3456 | sv_recode_to_utf8(TARG, PL_encoding); |
| 88632417 JH |
3457 | tmps = SvPVX(TARG); |
| 3458 | if (SvCUR(TARG) == 0 || !is_utf8_string((U8*)tmps, SvCUR(TARG)) || | |
| 4c5ed6e2 TS |
3459 | UNICODE_IS_REPLACEMENT(utf8_to_uvchr((U8*)tmps, NULL))) { |
| 3460 | SvGROW(TARG, 2); | |
| d5a15ac2 | 3461 | tmps = SvPVX(TARG); |
| 4c5ed6e2 TS |
3462 | SvCUR_set(TARG, 1); |
| 3463 | *tmps++ = (char)value; | |
| 88632417 | 3464 | *tmps = '\0'; |
| 4c5ed6e2 | 3465 | SvUTF8_off(TARG); |
| 88632417 JH |
3466 | } |
| 3467 | } | |
| 4c5ed6e2 | 3468 | |
| 463ee0b2 LW |
3469 | XPUSHs(TARG); |
| 3470 | RETURN; | |
| 3471 | } | |
| 3472 | ||
| 79072805 LW |
3473 | PP(pp_crypt) |
| 3474 | { | |
| 79072805 | 3475 | #ifdef HAS_CRYPT |
| 97aff369 | 3476 | dVAR; dSP; dTARGET; |
| 5f74f29c | 3477 | dPOPTOPssrl; |
| 85c16d83 | 3478 | STRLEN len; |
| 10516c54 | 3479 | const char *tmps = SvPV_const(left, len); |
| 2bc69dc4 | 3480 | |
| 85c16d83 | 3481 | if (DO_UTF8(left)) { |
| 2bc69dc4 | 3482 | /* If Unicode, try to downgrade. |
| f2791508 JH |
3483 | * If not possible, croak. |
| 3484 | * Yes, we made this up. */ | |
| 1b6737cc | 3485 | SV* const tsv = sv_2mortal(newSVsv(left)); |
| 2bc69dc4 | 3486 | |
| f2791508 | 3487 | SvUTF8_on(tsv); |
| 2bc69dc4 | 3488 | sv_utf8_downgrade(tsv, FALSE); |
| 349d4f2f | 3489 | tmps = SvPV_const(tsv, len); |
| 85c16d83 | 3490 | } |
| 05404ffe JH |
3491 | # ifdef USE_ITHREADS |
| 3492 | # ifdef HAS_CRYPT_R | |
| 3493 | if (!PL_reentrant_buffer->_crypt_struct_buffer) { | |
| 3494 | /* This should be threadsafe because in ithreads there is only | |
| 3495 | * one thread per interpreter. If this would not be true, | |
| 3496 | * we would need a mutex to protect this malloc. */ | |
| 3497 | PL_reentrant_buffer->_crypt_struct_buffer = | |
| 3498 | (struct crypt_data *)safemalloc(sizeof(struct crypt_data)); | |
| 3499 | #if defined(__GLIBC__) || defined(__EMX__) | |
| 3500 | if (PL_reentrant_buffer->_crypt_struct_buffer) { | |
| 3501 | PL_reentrant_buffer->_crypt_struct_buffer->initialized = 0; | |
| 3502 | /* work around glibc-2.2.5 bug */ | |
| 3503 | PL_reentrant_buffer->_crypt_struct_buffer->current_saltbits = 0; | |
| 3504 | } | |
| 05404ffe | 3505 | #endif |
| 6ab58e4d | 3506 | } |
| 05404ffe JH |
3507 | # endif /* HAS_CRYPT_R */ |
| 3508 | # endif /* USE_ITHREADS */ | |
| 5f74f29c | 3509 | # ifdef FCRYPT |
| 83003860 | 3510 | sv_setpv(TARG, fcrypt(tmps, SvPV_nolen_const(right))); |
| 5f74f29c | 3511 | # else |
| 83003860 | 3512 | sv_setpv(TARG, PerlProc_crypt(tmps, SvPV_nolen_const(right))); |
| 5f74f29c | 3513 | # endif |
| ec93b65f | 3514 | SETTARG; |
| 4808266b | 3515 | RETURN; |
| 79072805 | 3516 | #else |
| b13b2135 | 3517 | DIE(aTHX_ |
| 79072805 LW |
3518 | "The crypt() function is unimplemented due to excessive paranoia."); |
| 3519 | #endif | |
| 79072805 LW |
3520 | } |
| 3521 | ||
| 3522 | PP(pp_ucfirst) | |
| 3523 | { | |
| 97aff369 | 3524 | dVAR; |
| 39644a26 | 3525 | dSP; |
| d54190f6 | 3526 | SV *source = TOPs; |
| a0ed51b3 | 3527 | STRLEN slen; |
| d54190f6 NC |
3528 | STRLEN need; |
| 3529 | SV *dest; | |
| 3530 | bool inplace = TRUE; | |
| 3531 | bool doing_utf8; | |
| 12e9c124 | 3532 | const int op_type = PL_op->op_type; |
| d54190f6 NC |
3533 | const U8 *s; |
| 3534 | U8 *d; | |
| 3535 | U8 tmpbuf[UTF8_MAXBYTES_CASE+1]; | |
| 3536 | STRLEN ulen; | |
| 3537 | STRLEN tculen; | |
| 3538 | ||
| 3539 | SvGETMAGIC(source); | |
| 3540 | if (SvOK(source)) { | |
| 3541 | s = (const U8*)SvPV_nomg_const(source, slen); | |
| 3542 | } else { | |
| 0a0ffbce RGS |
3543 | if (ckWARN(WARN_UNINITIALIZED)) |
| 3544 | report_uninit(source); | |
| 1eced8f8 | 3545 | s = (const U8*)""; |
| d54190f6 NC |
3546 | slen = 0; |
| 3547 | } | |
| a0ed51b3 | 3548 | |
| d54190f6 NC |
3549 | if (slen && DO_UTF8(source) && UTF8_IS_START(*s)) { |
| 3550 | doing_utf8 = TRUE; | |
| 44bc797b | 3551 | utf8_to_uvchr(s, &ulen); |
| 12e9c124 NC |
3552 | if (op_type == OP_UCFIRST) { |
| 3553 | toTITLE_utf8(s, tmpbuf, &tculen); | |
| 3554 | } else { | |
| 3555 | toLOWER_utf8(s, tmpbuf, &tculen); | |
| 3556 | } | |
| d54190f6 | 3557 | /* If the two differ, we definately cannot do inplace. */ |
| 1eced8f8 | 3558 | inplace = (ulen == tculen); |
| d54190f6 NC |
3559 | need = slen + 1 - ulen + tculen; |
| 3560 | } else { | |
| 3561 | doing_utf8 = FALSE; | |
| 3562 | need = slen + 1; | |
| 3563 | } | |
| 3564 | ||
| 17fa0776 | 3565 | if (SvPADTMP(source) && !SvREADONLY(source) && inplace && SvTEMP(source)) { |
| d54190f6 NC |
3566 | /* We can convert in place. */ |
| 3567 | ||
| 3568 | dest = source; | |
| 3569 | s = d = (U8*)SvPV_force_nomg(source, slen); | |
| 3570 | } else { | |
| 3571 | dTARGET; | |
| 3572 | ||
| 3573 | dest = TARG; | |
| 3574 | ||
| 3575 | SvUPGRADE(dest, SVt_PV); | |
| 3b416f41 | 3576 | d = (U8*)SvGROW(dest, need); |
| d54190f6 NC |
3577 | (void)SvPOK_only(dest); |
| 3578 | ||
| 3579 | SETs(dest); | |
| 3580 | ||
| 3581 | inplace = FALSE; | |
| 3582 | } | |
| 44bc797b | 3583 | |
| d54190f6 NC |
3584 | if (doing_utf8) { |
| 3585 | if(!inplace) { | |
| 3a2263fe RGS |
3586 | /* slen is the byte length of the whole SV. |
| 3587 | * ulen is the byte length of the original Unicode character | |
| 3588 | * stored as UTF-8 at s. | |
| 12e9c124 NC |
3589 | * tculen is the byte length of the freshly titlecased (or |
| 3590 | * lowercased) Unicode character stored as UTF-8 at tmpbuf. | |
| 3591 | * We first set the result to be the titlecased (/lowercased) | |
| 3592 | * character, and then append the rest of the SV data. */ | |
| d54190f6 | 3593 | sv_setpvn(dest, (char*)tmpbuf, tculen); |
| 3a2263fe | 3594 | if (slen > ulen) |
| d54190f6 NC |
3595 | sv_catpvn(dest, (char*)(s + ulen), slen - ulen); |
| 3596 | SvUTF8_on(dest); | |
| a0ed51b3 LW |
3597 | } |
| 3598 | else { | |
| d54190f6 NC |
3599 | Copy(tmpbuf, d, tculen, U8); |
| 3600 | SvCUR_set(dest, need - 1); | |
| a0ed51b3 | 3601 | } |
| a0ed51b3 | 3602 | } |
| 626727d5 | 3603 | else { |
| d54190f6 | 3604 | if (*s) { |
| 2de3dbcc | 3605 | if (IN_LOCALE_RUNTIME) { |
| 31351b04 | 3606 | TAINT; |
| d54190f6 NC |
3607 | SvTAINTED_on(dest); |
| 3608 | *d = (op_type == OP_UCFIRST) | |
| 3609 | ? toUPPER_LC(*s) : toLOWER_LC(*s); | |
| 31351b04 JS |
3610 | } |
| 3611 | else | |
| d54190f6 NC |
3612 | *d = (op_type == OP_UCFIRST) ? toUPPER(*s) : toLOWER(*s); |
| 3613 | } else { | |
| 3614 | /* See bug #39028 */ | |
| 3615 | *d = *s; | |
| 3616 | } | |
| 3617 | ||
| 3618 | if (SvUTF8(source)) | |
| 3619 | SvUTF8_on(dest); | |
| 3620 | ||
| 3621 | if (!inplace) { | |
| 3622 | /* This will copy the trailing NUL */ | |
| 3623 | Copy(s + 1, d + 1, slen, U8); | |
| 3624 | SvCUR_set(dest, need - 1); | |
| bbce6d69 | 3625 | } |
| bbce6d69 | 3626 | } |
| d54190f6 | 3627 | SvSETMAGIC(dest); |
| 79072805 LW |
3628 | RETURN; |
| 3629 | } | |
| 3630 | ||
| 67306194 NC |
3631 | /* There's so much setup/teardown code common between uc and lc, I wonder if |
| 3632 | it would be worth merging the two, and just having a switch outside each | |
| 3633 | of the three tight loops. */ | |
| 79072805 LW |
3634 | PP(pp_uc) |
| 3635 | { | |
| 97aff369 | 3636 | dVAR; |
| 39644a26 | 3637 | dSP; |
| 67306194 | 3638 | SV *source = TOPs; |
| 463ee0b2 | 3639 | STRLEN len; |
| 67306194 NC |
3640 | STRLEN min; |
| 3641 | SV *dest; | |
| 3642 | const U8 *s; | |
| 3643 | U8 *d; | |
| 79072805 | 3644 | |
| 67306194 NC |
3645 | SvGETMAGIC(source); |
| 3646 | ||
| 3647 | if (SvPADTMP(source) && !SvREADONLY(source) && !SvAMAGIC(source) | |
| 17fa0776 | 3648 | && SvTEMP(source) && !DO_UTF8(source)) { |
| 67306194 NC |
3649 | /* We can convert in place. */ |
| 3650 | ||
| 3651 | dest = source; | |
| 3652 | s = d = (U8*)SvPV_force_nomg(source, len); | |
| 3653 | min = len + 1; | |
| 3654 | } else { | |
| a0ed51b3 | 3655 | dTARGET; |
| a0ed51b3 | 3656 | |
| 67306194 | 3657 | dest = TARG; |
| 128c9517 | 3658 | |
| 67306194 NC |
3659 | /* The old implementation would copy source into TARG at this point. |
| 3660 | This had the side effect that if source was undef, TARG was now | |
| 3661 | an undefined SV with PADTMP set, and they don't warn inside | |
| 3662 | sv_2pv_flags(). However, we're now getting the PV direct from | |
| 3663 | source, which doesn't have PADTMP set, so it would warn. Hence the | |
| 3664 | little games. */ | |
| 3665 | ||
| 3666 | if (SvOK(source)) { | |
| 3667 | s = (const U8*)SvPV_nomg_const(source, len); | |
| 3668 | } else { | |
| 0a0ffbce RGS |
3669 | if (ckWARN(WARN_UNINITIALIZED)) |
| 3670 | report_uninit(source); | |
| 1eced8f8 | 3671 | s = (const U8*)""; |
| 67306194 | 3672 | len = 0; |
| a0ed51b3 | 3673 | } |
| 67306194 NC |
3674 | min = len + 1; |
| 3675 | ||
| 3676 | SvUPGRADE(dest, SVt_PV); | |
| 3b416f41 | 3677 | d = (U8*)SvGROW(dest, min); |
| 67306194 NC |
3678 | (void)SvPOK_only(dest); |
| 3679 | ||
| 3680 | SETs(dest); | |
| a0ed51b3 | 3681 | } |
| 31351b04 | 3682 | |
| 67306194 NC |
3683 | /* Overloaded values may have toggled the UTF-8 flag on source, so we need |
| 3684 | to check DO_UTF8 again here. */ | |
| 3685 | ||
| 3686 | if (DO_UTF8(source)) { | |
| 3687 | const U8 *const send = s + len; | |
| 3688 | U8 tmpbuf[UTF8_MAXBYTES+1]; | |
| 3689 | ||
| 3690 | while (s < send) { | |
| 3691 | const STRLEN u = UTF8SKIP(s); | |
| 3692 | STRLEN ulen; | |
| 3693 | ||
| 3694 | toUPPER_utf8(s, tmpbuf, &ulen); | |
| 3695 | if (ulen > u && (SvLEN(dest) < (min += ulen - u))) { | |
| 3696 | /* If the eventually required minimum size outgrows | |
| 3697 | * the available space, we need to grow. */ | |
| 3698 | const UV o = d - (U8*)SvPVX_const(dest); | |
| 3699 | ||
| 3700 | /* If someone uppercases one million U+03B0s we SvGROW() one | |
| 3701 | * million times. Or we could try guessing how much to | |
| 3702 | allocate without allocating too much. Such is life. */ | |
| 3703 | SvGROW(dest, min); | |
| 3704 | d = (U8*)SvPVX(dest) + o; | |
| 3705 | } | |
| 3706 | Copy(tmpbuf, d, ulen, U8); | |
| 3707 | d += ulen; | |
| 3708 | s += u; | |
| 3709 | } | |
| 3710 | SvUTF8_on(dest); | |
| 3711 | *d = '\0'; | |
| 3712 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); | |
| 3713 | } else { | |
| 3714 | if (len) { | |
| 3715 | const U8 *const send = s + len; | |
| 2de3dbcc | 3716 | if (IN_LOCALE_RUNTIME) { |
| 31351b04 | 3717 | TAINT; |
| 67306194 NC |
3718 | SvTAINTED_on(dest); |
| 3719 | for (; s < send; d++, s++) | |
| 3720 | *d = toUPPER_LC(*s); | |
| 31351b04 JS |
3721 | } |
| 3722 | else { | |
| 67306194 NC |
3723 | for (; s < send; d++, s++) |
| 3724 | *d = toUPPER(*s); | |
| 31351b04 | 3725 | } |
| bbce6d69 | 3726 | } |
| 67306194 NC |
3727 | if (source != dest) { |
| 3728 | *d = '\0'; | |
| 3729 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); | |
| 3730 | } | |
| 79072805 | 3731 | } |
| 67306194 | 3732 | SvSETMAGIC(dest); |
| 79072805 LW |
3733 | RETURN; |
| 3734 | } | |
| 3735 | ||
| 3736 | PP(pp_lc) | |
| 3737 | { | |
| 97aff369 | 3738 | dVAR; |
| 39644a26 | 3739 | dSP; |
| ec9af7d4 | 3740 | SV *source = TOPs; |
| 463ee0b2 | 3741 | STRLEN len; |
| ec9af7d4 NC |
3742 | STRLEN min; |
| 3743 | SV *dest; | |
| 3744 | const U8 *s; | |
| 3745 | U8 *d; | |
| 79072805 | 3746 | |
| ec9af7d4 NC |
3747 | SvGETMAGIC(source); |
| 3748 | ||
| 3749 | if (SvPADTMP(source) && !SvREADONLY(source) && !SvAMAGIC(source) | |
| 17fa0776 | 3750 | && SvTEMP(source) && !DO_UTF8(source)) { |
| ec9af7d4 NC |
3751 | /* We can convert in place. */ |
| 3752 | ||
| 3753 | dest = source; | |
| 3754 | s = d = (U8*)SvPV_force_nomg(source, len); | |
| 3755 | min = len + 1; | |
| 3756 | } else { | |
| a0ed51b3 | 3757 | dTARGET; |
| a0ed51b3 | 3758 | |
| ec9af7d4 NC |
3759 | dest = TARG; |
| 3760 | ||
| 3761 | /* The old implementation would copy source into TARG at this point. | |
| 3762 | This had the side effect that if source was undef, TARG was now | |
| 3763 | an undefined SV with PADTMP set, and they don't warn inside | |
| 3764 | sv_2pv_flags(). However, we're now getting the PV direct from | |
| 3765 | source, which doesn't have PADTMP set, so it would warn. Hence the | |
| 3766 | little games. */ | |
| 3767 | ||
| 3768 | if (SvOK(source)) { | |
| 3769 | s = (const U8*)SvPV_nomg_const(source, len); | |
| 3770 | } else { | |
| 0a0ffbce RGS |
3771 | if (ckWARN(WARN_UNINITIALIZED)) |
| 3772 | report_uninit(source); | |
| 1eced8f8 | 3773 | s = (const U8*)""; |
| ec9af7d4 | 3774 | len = 0; |
| a0ed51b3 | 3775 | } |
| ec9af7d4 | 3776 | min = len + 1; |
| 128c9517 | 3777 | |
| ec9af7d4 | 3778 | SvUPGRADE(dest, SVt_PV); |
| 3b416f41 | 3779 | d = (U8*)SvGROW(dest, min); |
| ec9af7d4 NC |
3780 | (void)SvPOK_only(dest); |
| 3781 | ||
| 3782 | SETs(dest); | |
| 3783 | } | |
| 3784 | ||
| 3785 | /* Overloaded values may have toggled the UTF-8 flag on source, so we need | |
| 3786 | to check DO_UTF8 again here. */ | |
| 3787 | ||
| 3788 | if (DO_UTF8(source)) { | |
| 3789 | const U8 *const send = s + len; | |
| 3790 | U8 tmpbuf[UTF8_MAXBYTES_CASE+1]; | |
| 3791 | ||
| 3792 | while (s < send) { | |
| 3793 | const STRLEN u = UTF8SKIP(s); | |
| 3794 | STRLEN ulen; | |
| 3795 | const UV uv = toLOWER_utf8(s, tmpbuf, &ulen); | |
| 89ebb4a3 JH |
3796 | |
| 3797 | #define GREEK_CAPITAL_LETTER_SIGMA 0x03A3 /* Unicode U+03A3 */ | |
| ec9af7d4 NC |
3798 | if (uv == GREEK_CAPITAL_LETTER_SIGMA) { |
| 3799 | NOOP; | |
| 3800 | /* | |
| 3801 | * Now if the sigma is NOT followed by | |
| 3802 | * /$ignorable_sequence$cased_letter/; | |
| 3803 | * and it IS preceded by /$cased_letter$ignorable_sequence/; | |
| 3804 | * where $ignorable_sequence is [\x{2010}\x{AD}\p{Mn}]* | |
| 3805 | * and $cased_letter is [\p{Ll}\p{Lo}\p{Lt}] | |
| 3806 | * then it should be mapped to 0x03C2, | |
| 3807 | * (GREEK SMALL LETTER FINAL SIGMA), | |
| 3808 | * instead of staying 0x03A3. | |
| 3809 | * "should be": in other words, this is not implemented yet. | |
| 3810 | * See lib/unicore/SpecialCasing.txt. | |
| 3811 | */ | |
| 3812 | } | |
| 3813 | if (ulen > u && (SvLEN(dest) < (min += ulen - u))) { | |
| 3814 | /* If the eventually required minimum size outgrows | |
| 3815 | * the available space, we need to grow. */ | |
| 3816 | const UV o = d - (U8*)SvPVX_const(dest); | |
| 89ebb4a3 | 3817 | |
| ec9af7d4 NC |
3818 | /* If someone lowercases one million U+0130s we SvGROW() one |
| 3819 | * million times. Or we could try guessing how much to | |
| 3820 | allocate without allocating too much. Such is life. */ | |
| 3821 | SvGROW(dest, min); | |
| 3822 | d = (U8*)SvPVX(dest) + o; | |
| a0ed51b3 | 3823 | } |
| ec9af7d4 NC |
3824 | Copy(tmpbuf, d, ulen, U8); |
| 3825 | d += ulen; | |
| 3826 | s += u; | |
| a0ed51b3 | 3827 | } |
| ec9af7d4 NC |
3828 | SvUTF8_on(dest); |
| 3829 | *d = '\0'; | |
| 3830 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); | |
| 3831 | } else { | |
| 31351b04 | 3832 | if (len) { |
| ec9af7d4 | 3833 | const U8 *const send = s + len; |
| 2de3dbcc | 3834 | if (IN_LOCALE_RUNTIME) { |
| 31351b04 | 3835 | TAINT; |
| ec9af7d4 NC |
3836 | SvTAINTED_on(dest); |
| 3837 | for (; s < send; d++, s++) | |
| 3838 | *d = toLOWER_LC(*s); | |
| 31351b04 JS |
3839 | } |
| 3840 | else { | |
| ec9af7d4 NC |
3841 | for (; s < send; d++, s++) |
| 3842 | *d = toLOWER(*s); | |
| 31351b04 | 3843 | } |
| bbce6d69 | 3844 | } |
| ec9af7d4 NC |
3845 | if (source != dest) { |
| 3846 | *d = '\0'; | |
| 3847 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); | |
| 3848 | } | |
| 79072805 | 3849 | } |
| ec9af7d4 | 3850 | SvSETMAGIC(dest); |
| 79072805 LW |
3851 | RETURN; |
| 3852 | } | |
| 3853 | ||
| a0d0e21e | 3854 | PP(pp_quotemeta) |
| 79072805 | 3855 | { |
| 97aff369 | 3856 | dVAR; dSP; dTARGET; |
| 1b6737cc | 3857 | SV * const sv = TOPs; |
| a0d0e21e | 3858 | STRLEN len; |
| 0d46e09a | 3859 | register const char *s = SvPV_const(sv,len); |
| 79072805 | 3860 | |
| 7e2040f0 | 3861 | SvUTF8_off(TARG); /* decontaminate */ |
| a0d0e21e | 3862 | if (len) { |
| 1b6737cc | 3863 | register char *d; |
| 862a34c6 | 3864 | SvUPGRADE(TARG, SVt_PV); |
| c07a80fd | 3865 | SvGROW(TARG, (len * 2) + 1); |
| a0d0e21e | 3866 | d = SvPVX(TARG); |
| 7e2040f0 | 3867 | if (DO_UTF8(sv)) { |
| 0dd2cdef | 3868 | while (len) { |
| fd400ab9 | 3869 | if (UTF8_IS_CONTINUED(*s)) { |
| 0dd2cdef LW |
3870 | STRLEN ulen = UTF8SKIP(s); |
| 3871 | if (ulen > len) | |
| 3872 | ulen = len; | |
| 3873 | len -= ulen; | |
| 3874 | while (ulen--) | |
| 3875 | *d++ = *s++; | |
| 3876 | } | |
| 3877 | else { | |
| 3878 | if (!isALNUM(*s)) | |
| 3879 | *d++ = '\\'; | |
| 3880 | *d++ = *s++; | |
| 3881 | len--; | |
| 3882 | } | |
| 3883 | } | |
| 7e2040f0 | 3884 | SvUTF8_on(TARG); |
| 0dd2cdef LW |
3885 | } |
| 3886 | else { | |
| 3887 | while (len--) { | |
| 3888 | if (!isALNUM(*s)) | |
| 3889 | *d++ = '\\'; | |
| 3890 | *d++ = *s++; | |
| 3891 | } | |
| 79072805 | 3892 | } |
| a0d0e21e | 3893 | *d = '\0'; |
| 349d4f2f | 3894 | SvCUR_set(TARG, d - SvPVX_const(TARG)); |
| 3aa33fe5 | 3895 | (void)SvPOK_only_UTF8(TARG); |
| 79072805 | 3896 | } |
| a0d0e21e LW |
3897 | else |
| 3898 | sv_setpvn(TARG, s, len); | |
| ec93b65f | 3899 | SETTARG; |
| 79072805 LW |
3900 | RETURN; |
| 3901 | } | |
| 3902 | ||
| a0d0e21e | 3903 | /* Arrays. */ |
| 79072805 | 3904 | |
| a0d0e21e | 3905 | PP(pp_aslice) |
| 79072805 | 3906 | { |
| 97aff369 | 3907 | dVAR; dSP; dMARK; dORIGMARK; |
| 502c6561 | 3908 | register AV *const av = MUTABLE_AV(POPs); |
| 1b6737cc | 3909 | register const I32 lval = (PL_op->op_flags & OPf_MOD || LVRET); |
| 79072805 | 3910 | |
| a0d0e21e | 3911 | if (SvTYPE(av) == SVt_PVAV) { |
| fc15ae8f | 3912 | const I32 arybase = CopARYBASE_get(PL_curcop); |
| 4ad10a0b VP |
3913 | const bool localizing = PL_op->op_private & OPpLVAL_INTRO; |
| 3914 | bool can_preserve = FALSE; | |
| 3915 | ||
| 3916 | if (localizing) { | |
| 3917 | MAGIC *mg; | |
| 3918 | HV *stash; | |
| 3919 | ||
| 3920 | can_preserve = SvCANEXISTDELETE(av); | |
| 3921 | } | |
| 3922 | ||
| 3923 | if (lval && localizing) { | |
| 1b6737cc | 3924 | register SV **svp; |
| 748a9306 | 3925 | I32 max = -1; |
| 924508f0 | 3926 | for (svp = MARK + 1; svp <= SP; svp++) { |
| 4ea561bc | 3927 | const I32 elem = SvIV(*svp); |
| 748a9306 LW |
3928 | if (elem > max) |
| 3929 | max = elem; | |
| 3930 | } | |
| 3931 | if (max > AvMAX(av)) | |
| 3932 | av_extend(av, max); | |
| 3933 | } | |
| 4ad10a0b | 3934 | |
| a0d0e21e | 3935 | while (++MARK <= SP) { |
| 1b6737cc | 3936 | register SV **svp; |
| 4ea561bc | 3937 | I32 elem = SvIV(*MARK); |
| 4ad10a0b | 3938 | bool preeminent = TRUE; |
| a0d0e21e | 3939 | |
| 748a9306 LW |
3940 | if (elem > 0) |
| 3941 | elem -= arybase; | |
| 4ad10a0b VP |
3942 | if (localizing && can_preserve) { |
| 3943 | /* If we can determine whether the element exist, | |
| 3944 | * Try to preserve the existenceness of a tied array | |
| 3945 | * element by using EXISTS and DELETE if possible. | |
| 3946 | * Fallback to FETCH and STORE otherwise. */ | |
| 3947 | preeminent = av_exists(av, elem); | |
| 3948 | } | |
| 3949 | ||
| a0d0e21e LW |
3950 | svp = av_fetch(av, elem, lval); |
| 3951 | if (lval) { | |
| 3280af22 | 3952 | if (!svp || *svp == &PL_sv_undef) |
| cea2e8a9 | 3953 | DIE(aTHX_ PL_no_aelem, elem); |
| 4ad10a0b VP |
3954 | if (localizing) { |
| 3955 | if (preeminent) | |
| 3956 | save_aelem(av, elem, svp); | |
| 3957 | else | |
| 3958 | SAVEADELETE(av, elem); | |
| 3959 | } | |
| 79072805 | 3960 | } |
| 3280af22 | 3961 | *MARK = svp ? *svp : &PL_sv_undef; |
| 79072805 LW |
3962 | } |
| 3963 | } | |
| 748a9306 | 3964 | if (GIMME != G_ARRAY) { |
| a0d0e21e | 3965 | MARK = ORIGMARK; |
| 04ab2c87 | 3966 | *++MARK = SP > ORIGMARK ? *SP : &PL_sv_undef; |
| a0d0e21e LW |
3967 | SP = MARK; |
| 3968 | } | |
| 79072805 LW |
3969 | RETURN; |
| 3970 | } | |
| 3971 | ||
| 878d132a NC |
3972 | PP(pp_aeach) |
| 3973 | { | |
| 3974 | dVAR; | |
| 3975 | dSP; | |
| 502c6561 | 3976 | AV *array = MUTABLE_AV(POPs); |
| 878d132a | 3977 | const I32 gimme = GIMME_V; |
| 453d94a9 | 3978 | IV *iterp = Perl_av_iter_p(aTHX_ array); |
| 878d132a NC |
3979 | const IV current = (*iterp)++; |
| 3980 | ||
| 3981 | if (current > av_len(array)) { | |
| 3982 | *iterp = 0; | |
| 3983 | if (gimme == G_SCALAR) | |
| 3984 | RETPUSHUNDEF; | |
| 3985 | else | |
| 3986 | RETURN; | |
| 3987 | } | |
| 3988 | ||
| 3989 | EXTEND(SP, 2); | |
| 3990 | mPUSHi(CopARYBASE_get(PL_curcop) + current); | |
| 3991 | if (gimme == G_ARRAY) { | |
| 3992 | SV **const element = av_fetch(array, current, 0); | |
| 3993 | PUSHs(element ? *element : &PL_sv_undef); | |
| 3994 | } | |
| 3995 | RETURN; | |
| 3996 | } | |
| 3997 | ||
| 3998 | PP(pp_akeys) | |
| 3999 | { | |
| 4000 | dVAR; | |
| 4001 | dSP; | |
| 502c6561 | 4002 | AV *array = MUTABLE_AV(POPs); |
| 878d132a NC |
4003 | const I32 gimme = GIMME_V; |
| 4004 | ||
| 4005 | *Perl_av_iter_p(aTHX_ array) = 0; | |
| 4006 | ||
| 4007 | if (gimme == G_SCALAR) { | |
| 4008 | dTARGET; | |
| 4009 | PUSHi(av_len(array) + 1); | |
| 4010 | } | |
| 4011 | else if (gimme == G_ARRAY) { | |
| 4012 | IV n = Perl_av_len(aTHX_ array); | |
| 4013 | IV i = CopARYBASE_get(PL_curcop); | |
| 4014 | ||
| 4015 | EXTEND(SP, n + 1); | |
| 4016 | ||
| 4017 | if (PL_op->op_type == OP_AKEYS) { | |
| 4018 | n += i; | |
| 4019 | for (; i <= n; i++) { | |
| 4020 | mPUSHi(i); | |
| 4021 | } | |
| 4022 | } | |
| 4023 | else { | |
| 4024 | for (i = 0; i <= n; i++) { | |
| 4025 | SV *const *const elem = Perl_av_fetch(aTHX_ array, i, 0); | |
| 4026 | PUSHs(elem ? *elem : &PL_sv_undef); | |
| 4027 | } | |
| 4028 | } | |
| 4029 | } | |
| 4030 | RETURN; | |
| 4031 | } | |
| 4032 | ||
| 79072805 LW |
4033 | /* Associative arrays. */ |
| 4034 | ||
| 4035 | PP(pp_each) | |
| 4036 | { | |
| 97aff369 | 4037 | dVAR; |
| 39644a26 | 4038 | dSP; |
| 85fbaab2 | 4039 | HV * hash = MUTABLE_HV(POPs); |
| c07a80fd | 4040 | HE *entry; |
| f54cb97a | 4041 | const I32 gimme = GIMME_V; |
| 8ec5e241 | 4042 | |
| c07a80fd | 4043 | PUTBACK; |
| c750a3ec | 4044 | /* might clobber stack_sp */ |
| 6d822dc4 | 4045 | entry = hv_iternext(hash); |
| c07a80fd | 4046 | SPAGAIN; |
| 79072805 | 4047 | |
| 79072805 LW |
4048 | EXTEND(SP, 2); |
| 4049 | if (entry) { | |
| 1b6737cc | 4050 | SV* const sv = hv_iterkeysv(entry); |
| 574c8022 | 4051 | PUSHs(sv); /* won't clobber stack_sp */ |
| 54310121 | 4052 | if (gimme == G_ARRAY) { |
| 59af0135 | 4053 | SV *val; |
| c07a80fd | 4054 | PUTBACK; |
| c750a3ec | 4055 | /* might clobber stack_sp */ |
| 6d822dc4 | 4056 | val = hv_iterval(hash, entry); |
| c07a80fd | 4057 | SPAGAIN; |
| 59af0135 | 4058 | PUSHs(val); |
| 79072805 | 4059 | } |
| 79072805 | 4060 | } |
| 54310121 | 4061 | else if (gimme == G_SCALAR) |
| 79072805 LW |
4062 | RETPUSHUNDEF; |
| 4063 | ||
| 4064 | RETURN; | |
| 4065 | } | |
| 4066 | ||
| 7332a6c4 VP |
4067 | STATIC OP * |
| 4068 | S_do_delete_local(pTHX) | |
| 79072805 | 4069 | { |
| 97aff369 | 4070 | dVAR; |
| 39644a26 | 4071 | dSP; |
| f54cb97a | 4072 | const I32 gimme = GIMME_V; |
| 7332a6c4 VP |
4073 | const MAGIC *mg; |
| 4074 | HV *stash; | |
| 4075 | ||
| 4076 | if (PL_op->op_private & OPpSLICE) { | |
| 4077 | dMARK; dORIGMARK; | |
| 4078 | SV * const osv = POPs; | |
| 4079 | const bool tied = SvRMAGICAL(osv) | |
| 4080 | && mg_find((const SV *)osv, PERL_MAGIC_tied); | |
| 4081 | const bool can_preserve = SvCANEXISTDELETE(osv) | |
| 4082 | || mg_find((const SV *)osv, PERL_MAGIC_env); | |
| 4083 | const U32 type = SvTYPE(osv); | |
| 4084 | if (type == SVt_PVHV) { /* hash element */ | |
| 4085 | HV * const hv = MUTABLE_HV(osv); | |
| 4086 | while (++MARK <= SP) { | |
| 4087 | SV * const keysv = *MARK; | |
| 4088 | SV *sv = NULL; | |
| 4089 | bool preeminent = TRUE; | |
| 4090 | if (can_preserve) | |
| 4091 | preeminent = hv_exists_ent(hv, keysv, 0); | |
| 4092 | if (tied) { | |
| 4093 | HE *he = hv_fetch_ent(hv, keysv, 1, 0); | |
| 4094 | if (he) | |
| 4095 | sv = HeVAL(he); | |
| 4096 | else | |
| 4097 | preeminent = FALSE; | |
| 4098 | } | |
| 4099 | else { | |
| 4100 | sv = hv_delete_ent(hv, keysv, 0, 0); | |
| 4101 | SvREFCNT_inc_simple_void(sv); /* De-mortalize */ | |
| 4102 | } | |
| 4103 | if (preeminent) { | |
| 4104 | save_helem_flags(hv, keysv, &sv, SAVEf_KEEPOLDELEM); | |
| 4105 | if (tied) { | |
| 4106 | *MARK = sv_mortalcopy(sv); | |
| 4107 | mg_clear(sv); | |
| 4108 | } else | |
| 4109 | *MARK = sv; | |
| 4110 | } | |
| 4111 | else { | |
| 4112 | SAVEHDELETE(hv, keysv); | |
| 4113 | *MARK = &PL_sv_undef; | |
| 4114 | } | |
| 4115 | } | |
| 4116 | } | |
| 4117 | else if (type == SVt_PVAV) { /* array element */ | |
| 4118 | if (PL_op->op_flags & OPf_SPECIAL) { | |
| 4119 | AV * const av = MUTABLE_AV(osv); | |
| 4120 | while (++MARK <= SP) { | |
| 4121 | I32 idx = SvIV(*MARK); | |
| 4122 | SV *sv = NULL; | |
| 4123 | bool preeminent = TRUE; | |
| 4124 | if (can_preserve) | |
| 4125 | preeminent = av_exists(av, idx); | |
| 4126 | if (tied) { | |
| 4127 | SV **svp = av_fetch(av, idx, 1); | |
| 4128 | if (svp) | |
| 4129 | sv = *svp; | |
| 4130 | else | |
| 4131 | preeminent = FALSE; | |
| 4132 | } | |
| 4133 | else { | |
| 4134 | sv = av_delete(av, idx, 0); | |
| 4135 | SvREFCNT_inc_simple_void(sv); /* De-mortalize */ | |
| 4136 | } | |
| 4137 | if (preeminent) { | |
| 4138 | save_aelem_flags(av, idx, &sv, SAVEf_KEEPOLDELEM); | |
| 4139 | if (tied) { | |
| 4140 | *MARK = sv_mortalcopy(sv); | |
| 4141 | mg_clear(sv); | |
| 4142 | } else | |
| 4143 | *MARK = sv; | |
| 4144 | } | |
| 4145 | else { | |
| 4146 | SAVEADELETE(av, idx); | |
| 4147 | *MARK = &PL_sv_undef; | |
| 4148 | } | |
| 4149 | } | |
| 4150 | } | |
| 4151 | } | |
| 4152 | else | |
| 4153 | DIE(aTHX_ "Not a HASH reference"); | |
| 4154 | if (gimme == G_VOID) | |
| 4155 | SP = ORIGMARK; | |
| 4156 | else if (gimme == G_SCALAR) { | |
| 4157 | MARK = ORIGMARK; | |
| 4158 | if (SP > MARK) | |
| 4159 | *++MARK = *SP; | |
| 4160 | else | |
| 4161 | *++MARK = &PL_sv_undef; | |
| 4162 | SP = MARK; | |
| 4163 | } | |
| 4164 | } | |
| 4165 | else { | |
| 4166 | SV * const keysv = POPs; | |
| 4167 | SV * const osv = POPs; | |
| 4168 | const bool tied = SvRMAGICAL(osv) | |
| 4169 | && mg_find((const SV *)osv, PERL_MAGIC_tied); | |
| 4170 | const bool can_preserve = SvCANEXISTDELETE(osv) | |
| 4171 | || mg_find((const SV *)osv, PERL_MAGIC_env); | |
| 4172 | const U32 type = SvTYPE(osv); | |
| 4173 | SV *sv = NULL; | |
| 4174 | if (type == SVt_PVHV) { | |
| 4175 | HV * const hv = MUTABLE_HV(osv); | |
| 4176 | bool preeminent = TRUE; | |
| 4177 | if (can_preserve) | |
| 4178 | preeminent = hv_exists_ent(hv, keysv, 0); | |
| 4179 | if (tied) { | |
| 4180 | HE *he = hv_fetch_ent(hv, keysv, 1, 0); | |
| 4181 | if (he) | |
| 4182 | sv = HeVAL(he); | |
| 4183 | else | |
| 4184 | preeminent = FALSE; | |
| 4185 | } | |
| 4186 | else { | |
| 4187 | sv = hv_delete_ent(hv, keysv, 0, 0); | |
| 4188 | SvREFCNT_inc_simple_void(sv); /* De-mortalize */ | |
| 4189 | } | |
| 4190 | if (preeminent) { | |
| 4191 | save_helem_flags(hv, keysv, &sv, SAVEf_KEEPOLDELEM); | |
| 4192 | if (tied) { | |
| 4193 | SV *nsv = sv_mortalcopy(sv); | |
| 4194 | mg_clear(sv); | |
| 4195 | sv = nsv; | |
| 4196 | } | |
| 4197 | } | |
| 4198 | else | |
| 4199 | SAVEHDELETE(hv, keysv); | |
| 4200 | } | |
| 4201 | else if (type == SVt_PVAV) { | |
| 4202 | if (PL_op->op_flags & OPf_SPECIAL) { | |
| 4203 | AV * const av = MUTABLE_AV(osv); | |
| 4204 | I32 idx = SvIV(keysv); | |
| 4205 | bool preeminent = TRUE; | |
| 4206 | if (can_preserve) | |
| 4207 | preeminent = av_exists(av, idx); | |
| 4208 | if (tied) { | |
| 4209 | SV **svp = av_fetch(av, idx, 1); | |
| 4210 | if (svp) | |
| 4211 | sv = *svp; | |
| 4212 | else | |
| 4213 | preeminent = FALSE; | |
| 4214 | } | |
| 4215 | else { | |
| 4216 | sv = av_delete(av, idx, 0); | |
| 4217 | SvREFCNT_inc_simple_void(sv); /* De-mortalize */ | |
| 4218 | } | |
| 4219 | if (preeminent) { | |
| 4220 | save_aelem_flags(av, idx, &sv, SAVEf_KEEPOLDELEM); | |
| 4221 | if (tied) { | |
| 4222 | SV *nsv = sv_mortalcopy(sv); | |
| 4223 | mg_clear(sv); | |
| 4224 | sv = nsv; | |
| 4225 | } | |
| 4226 | } | |
| 4227 | else | |
| 4228 | SAVEADELETE(av, idx); | |
| 4229 | } | |
| 4230 | else | |
| 4231 | DIE(aTHX_ "panic: avhv_delete no longer supported"); | |
| 4232 | } | |
| 4233 | else | |
| 4234 | DIE(aTHX_ "Not a HASH reference"); | |
| 4235 | if (!sv) | |
| 4236 | sv = &PL_sv_undef; | |
| 4237 | if (gimme != G_VOID) | |
| 4238 | PUSHs(sv); | |
| 4239 | } | |
| 4240 | ||
| 4241 | RETURN; | |
| 4242 | } | |
| 4243 | ||
| 4244 | PP(pp_delete) | |
| 4245 | { | |
| 4246 | dVAR; | |
| 4247 | dSP; | |
| 4248 | I32 gimme; | |
| 4249 | I32 discard; | |
| 4250 | ||
| 4251 | if (PL_op->op_private & OPpLVAL_INTRO) | |
| 4252 | return do_delete_local(); | |
| 4253 | ||
| 4254 | gimme = GIMME_V; | |
| 4255 | discard = (gimme == G_VOID) ? G_DISCARD : 0; | |
| 5f05dabc | 4256 | |
| 533c011a | 4257 | if (PL_op->op_private & OPpSLICE) { |
| 5f05dabc | 4258 | dMARK; dORIGMARK; |
| 85fbaab2 | 4259 | HV * const hv = MUTABLE_HV(POPs); |
| 1b6737cc | 4260 | const U32 hvtype = SvTYPE(hv); |
| 01020589 GS |
4261 | if (hvtype == SVt_PVHV) { /* hash element */ |
| 4262 | while (++MARK <= SP) { | |
| 1b6737cc | 4263 | SV * const sv = hv_delete_ent(hv, *MARK, discard, 0); |
| 01020589 GS |
4264 | *MARK = sv ? sv : &PL_sv_undef; |
| 4265 | } | |
| 5f05dabc | 4266 | } |
| 6d822dc4 MS |
4267 | else if (hvtype == SVt_PVAV) { /* array element */ |
| 4268 | if (PL_op->op_flags & OPf_SPECIAL) { | |
| 4269 | while (++MARK <= SP) { | |
| 502c6561 | 4270 | SV * const sv = av_delete(MUTABLE_AV(hv), SvIV(*MARK), discard); |
| 6d822dc4 MS |
4271 | *MARK = sv ? sv : &PL_sv_undef; |
| 4272 | } | |
| 4273 | } | |
| 01020589 GS |
4274 | } |
| 4275 | else | |
| 4276 | DIE(aTHX_ "Not a HASH reference"); | |
| 54310121 | 4277 | if (discard) |
| 4278 | SP = ORIGMARK; | |
| 4279 | else if (gimme == G_SCALAR) { | |
| 5f05dabc | 4280 | MARK = ORIGMARK; |
| 9111c9c0 DM |
4281 | if (SP > MARK) |
| 4282 | *++MARK = *SP; | |
| 4283 | else | |
| 4284 | *++MARK = &PL_sv_undef; | |
| 5f05dabc | 4285 | SP = MARK; |
| 4286 | } | |
| 4287 | } | |
| 4288 | else { | |
| 4289 | SV *keysv = POPs; | |
| 85fbaab2 | 4290 | HV * const hv = MUTABLE_HV(POPs); |
| 1b6737cc | 4291 | SV *sv; |
| 97fcbf96 MB |
4292 | if (SvTYPE(hv) == SVt_PVHV) |
| 4293 | sv = hv_delete_ent(hv, keysv, discard, 0); | |
| 01020589 GS |
4294 | else if (SvTYPE(hv) == SVt_PVAV) { |
| 4295 | if (PL_op->op_flags & OPf_SPECIAL) | |
| 502c6561 | 4296 | sv = av_delete(MUTABLE_AV(hv), SvIV(keysv), discard); |
| af288a60 HS |
4297 | else |
| 4298 | DIE(aTHX_ "panic: avhv_delete no longer supported"); | |
| 01020589 | 4299 | } |
| 97fcbf96 | 4300 | else |
| cea2e8a9 | 4301 | DIE(aTHX_ "Not a HASH reference"); |
| 5f05dabc | 4302 | if (!sv) |
| 3280af22 | 4303 | sv = &PL_sv_undef; |
| 54310121 | 4304 | if (!discard) |
| 4305 | PUSHs(sv); | |
| 79072805 | 4306 | } |
| 79072805 LW |
4307 | RETURN; |
| 4308 | } | |
| 4309 | ||
| a0d0e21e | 4310 | PP(pp_exists) |
| 79072805 | 4311 | { |
| 97aff369 | 4312 | dVAR; |
| 39644a26 | 4313 | dSP; |
| afebc493 GS |
4314 | SV *tmpsv; |
| 4315 | HV *hv; | |
| 4316 | ||
| 4317 | if (PL_op->op_private & OPpEXISTS_SUB) { | |
| 4318 | GV *gv; | |
| 0bd48802 | 4319 | SV * const sv = POPs; |
| f2c0649b | 4320 | CV * const cv = sv_2cv(sv, &hv, &gv, 0); |
| afebc493 GS |
4321 | if (cv) |
| 4322 | RETPUSHYES; | |
| 4323 | if (gv && isGV(gv) && GvCV(gv) && !GvCVGEN(gv)) | |
| 4324 | RETPUSHYES; | |
| 4325 | RETPUSHNO; | |
| 4326 | } | |
| 4327 | tmpsv = POPs; | |
| 85fbaab2 | 4328 | hv = MUTABLE_HV(POPs); |
| c750a3ec | 4329 | if (SvTYPE(hv) == SVt_PVHV) { |
| ae77835f | 4330 | if (hv_exists_ent(hv, tmpsv, 0)) |
| c750a3ec | 4331 | RETPUSHYES; |
| ef54e1a4 JH |
4332 | } |
| 4333 | else if (SvTYPE(hv) == SVt_PVAV) { | |
| 01020589 | 4334 | if (PL_op->op_flags & OPf_SPECIAL) { /* array element */ |
| 502c6561 | 4335 | if (av_exists(MUTABLE_AV(hv), SvIV(tmpsv))) |
| 01020589 GS |
4336 | RETPUSHYES; |
| 4337 | } | |
| ef54e1a4 JH |
4338 | } |
| 4339 | else { | |
| cea2e8a9 | 4340 | DIE(aTHX_ "Not a HASH reference"); |
| a0d0e21e | 4341 | } |
| a0d0e21e LW |
4342 | RETPUSHNO; |
| 4343 | } | |
| 79072805 | 4344 | |
| a0d0e21e LW |
4345 | PP(pp_hslice) |
| 4346 | { | |
| 97aff369 | 4347 | dVAR; dSP; dMARK; dORIGMARK; |
| 85fbaab2 | 4348 | register HV * const hv = MUTABLE_HV(POPs); |
| 1b6737cc AL |
4349 | register const I32 lval = (PL_op->op_flags & OPf_MOD || LVRET); |
| 4350 | const bool localizing = PL_op->op_private & OPpLVAL_INTRO; | |
| d30e492c | 4351 | bool can_preserve = FALSE; |
| 79072805 | 4352 | |
| eb85dfd3 DM |
4353 | if (localizing) { |
| 4354 | MAGIC *mg; | |
| 4355 | HV *stash; | |
| 4356 | ||
| d30e492c VP |
4357 | if (SvCANEXISTDELETE(hv) || mg_find((const SV *)hv, PERL_MAGIC_env)) |
| 4358 | can_preserve = TRUE; | |
| eb85dfd3 DM |
4359 | } |
| 4360 | ||
| 6d822dc4 | 4361 | while (++MARK <= SP) { |
| 1b6737cc | 4362 | SV * const keysv = *MARK; |
| 6d822dc4 MS |
4363 | SV **svp; |
| 4364 | HE *he; | |
| d30e492c VP |
4365 | bool preeminent = TRUE; |
| 4366 | ||
| 4367 | if (localizing && can_preserve) { | |
| 4368 | /* If we can determine whether the element exist, | |
| 4369 | * try to preserve the existenceness of a tied hash | |
| 4370 | * element by using EXISTS and DELETE if possible. | |
| 4371 | * Fallback to FETCH and STORE otherwise. */ | |
| 4372 | preeminent = hv_exists_ent(hv, keysv, 0); | |
| 6d822dc4 | 4373 | } |
| eb85dfd3 | 4374 | |
| 6d822dc4 | 4375 | he = hv_fetch_ent(hv, keysv, lval, 0); |
| fe5bfecd | 4376 | svp = he ? &HeVAL(he) : NULL; |
| eb85dfd3 | 4377 | |
| 6d822dc4 MS |
4378 | if (lval) { |
| 4379 | if (!svp || *svp == &PL_sv_undef) { | |
| be2597df | 4380 | DIE(aTHX_ PL_no_helem_sv, SVfARG(keysv)); |
| 6d822dc4 MS |
4381 | } |
| 4382 | if (localizing) { | |
| 7a2e501a | 4383 | if (HvNAME_get(hv) && isGV(*svp)) |
| 159b6efe | 4384 | save_gp(MUTABLE_GV(*svp), !(PL_op->op_flags & OPf_SPECIAL)); |
| 47cfc530 VP |
4385 | else if (preeminent) |
| 4386 | save_helem_flags(hv, keysv, svp, | |
| 4387 | (PL_op->op_flags & OPf_SPECIAL) ? 0 : SAVEf_SETMAGIC); | |
| 4388 | else | |
| 4389 | SAVEHDELETE(hv, keysv); | |
| 6d822dc4 MS |
4390 | } |
| 4391 | } | |
| 4392 | *MARK = svp ? *svp : &PL_sv_undef; | |
| 79072805 | 4393 | } |
| a0d0e21e LW |
4394 | if (GIMME != G_ARRAY) { |
| 4395 | MARK = ORIGMARK; | |
| 04ab2c87 | 4396 | *++MARK = SP > ORIGMARK ? *SP : &PL_sv_undef; |
| a0d0e21e | 4397 | SP = MARK; |
| 79072805 | 4398 | } |
| a0d0e21e LW |
4399 | RETURN; |
| 4400 | } | |
| 4401 | ||
| 4402 | /* List operators. */ | |
| 4403 | ||
| 4404 | PP(pp_list) | |
| 4405 | { | |
| 97aff369 | 4406 | dVAR; dSP; dMARK; |
| a0d0e21e LW |
4407 | if (GIMME != G_ARRAY) { |
| 4408 | if (++MARK <= SP) | |
| 4409 | *MARK = *SP; /* unwanted list, return last item */ | |
| 8990e307 | 4410 | else |
| 3280af22 | 4411 | *MARK = &PL_sv_undef; |
| a0d0e21e | 4412 | SP = MARK; |
| 79072805 | 4413 | } |
| a0d0e21e | 4414 | RETURN; |
| 79072805 LW |
4415 | } |
| 4416 | ||
| a0d0e21e | 4417 | PP(pp_lslice) |
| 79072805 | 4418 | { |
| 97aff369 | 4419 | dVAR; |
| 39644a26 | 4420 | dSP; |
| 1b6737cc AL |
4421 | SV ** const lastrelem = PL_stack_sp; |
| 4422 | SV ** const lastlelem = PL_stack_base + POPMARK; | |
| 4423 | SV ** const firstlelem = PL_stack_base + POPMARK + 1; | |
| 4424 | register SV ** const firstrelem = lastlelem + 1; | |
| fc15ae8f | 4425 | const I32 arybase = CopARYBASE_get(PL_curcop); |
| 42e73ed0 | 4426 | I32 is_something_there = FALSE; |
| 1b6737cc AL |
4427 | |
| 4428 | register const I32 max = lastrelem - lastlelem; | |
| a0d0e21e | 4429 | register SV **lelem; |
| a0d0e21e LW |
4430 | |
| 4431 | if (GIMME != G_ARRAY) { | |
| 4ea561bc | 4432 | I32 ix = SvIV(*lastlelem); |
| 748a9306 LW |
4433 | if (ix < 0) |
| 4434 | ix += max; | |
| 4435 | else | |
| 4436 | ix -= arybase; | |
| a0d0e21e | 4437 | if (ix < 0 || ix >= max) |
| 3280af22 | 4438 | *firstlelem = &PL_sv_undef; |
| a0d0e21e LW |
4439 | else |
| 4440 | *firstlelem = firstrelem[ix]; | |
| 4441 | SP = firstlelem; | |
| 4442 | RETURN; | |
| 4443 | } | |
| 4444 | ||
| 4445 | if (max == 0) { | |
| 4446 | SP = firstlelem - 1; | |
| 4447 | RETURN; | |
| 4448 | } | |
| 4449 | ||
| 4450 | for (lelem = firstlelem; lelem <= lastlelem; lelem++) { | |
| 4ea561bc | 4451 | I32 ix = SvIV(*lelem); |
| c73bf8e3 | 4452 | if (ix < 0) |
| a0d0e21e | 4453 | ix += max; |
| b13b2135 | 4454 | else |
| 748a9306 | 4455 | ix -= arybase; |
| c73bf8e3 HS |
4456 | if (ix < 0 || ix >= max) |
| 4457 | *lelem = &PL_sv_undef; | |
| 4458 | else { | |
| 4459 | is_something_there = TRUE; | |
| 4460 | if (!(*lelem = firstrelem[ix])) | |
| 3280af22 | 4461 | *lelem = &PL_sv_undef; |
| 748a9306 | 4462 | } |
| 79072805 | 4463 | } |
| 4633a7c4 LW |
4464 | if (is_something_there) |
| 4465 | SP = lastlelem; | |
| 4466 | else | |
| 4467 | SP = firstlelem - 1; | |
| 79072805 LW |
4468 | RETURN; |
| 4469 | } | |
| 4470 | ||
| a0d0e21e LW |
4471 | PP(pp_anonlist) |
| 4472 | { | |
| 97aff369 | 4473 | dVAR; dSP; dMARK; dORIGMARK; |
| 1b6737cc | 4474 | const I32 items = SP - MARK; |
| ad64d0ec | 4475 | SV * const av = MUTABLE_SV(av_make(items, MARK+1)); |
| 44a8e56a | 4476 | SP = ORIGMARK; /* av_make() might realloc stack_sp */ |
| 6e449a3a MHM |
4477 | mXPUSHs((PL_op->op_flags & OPf_SPECIAL) |
| 4478 | ? newRV_noinc(av) : av); | |
| a0d0e21e LW |
4479 | RETURN; |
| 4480 | } | |
| 4481 | ||
| 4482 | PP(pp_anonhash) | |
| 79072805 | 4483 | { |
| 97aff369 | 4484 | dVAR; dSP; dMARK; dORIGMARK; |
| 78c72037 | 4485 | HV* const hv = newHV(); |
| a0d0e21e LW |
4486 | |
| 4487 | while (MARK < SP) { | |
| 1b6737cc | 4488 | SV * const key = *++MARK; |
| 561b68a9 | 4489 | SV * const val = newSV(0); |
| a0d0e21e LW |
4490 | if (MARK < SP) |
| 4491 | sv_setsv(val, *++MARK); | |
| a2a5de95 NC |
4492 | else |
| 4493 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), "Odd number of elements in anonymous hash"); | |
| f12c7020 | 4494 | (void)hv_store_ent(hv,key,val,0); |
| 79072805 | 4495 | } |
| a0d0e21e | 4496 | SP = ORIGMARK; |
| 6e449a3a | 4497 | mXPUSHs((PL_op->op_flags & OPf_SPECIAL) |
| ad64d0ec | 4498 | ? newRV_noinc(MUTABLE_SV(hv)) : MUTABLE_SV(hv)); |
| 79072805 LW |
4499 | RETURN; |
| 4500 | } | |
| 4501 | ||
| a0d0e21e | 4502 | PP(pp_splice) |
| 79072805 | 4503 | { |
| 27da23d5 | 4504 | dVAR; dSP; dMARK; dORIGMARK; |
| 502c6561 | 4505 | register AV *ary = MUTABLE_AV(*++MARK); |
| a0d0e21e LW |
4506 | register SV **src; |
| 4507 | register SV **dst; | |
| 4508 | register I32 i; | |
| 4509 | register I32 offset; | |
| 4510 | register I32 length; | |
| 4511 | I32 newlen; | |
| 4512 | I32 after; | |
| 4513 | I32 diff; | |
| ad64d0ec | 4514 | const MAGIC * const mg = SvTIED_mg((const SV *)ary, PERL_MAGIC_tied); |
| 93965878 | 4515 | |
| 1b6737cc | 4516 | if (mg) { |
| ad64d0ec | 4517 | *MARK-- = SvTIED_obj(MUTABLE_SV(ary), mg); |
| 93965878 | 4518 | PUSHMARK(MARK); |
| 8ec5e241 | 4519 | PUTBACK; |
| a60c0954 | 4520 | ENTER; |
| 864dbfa3 | 4521 | call_method("SPLICE",GIMME_V); |
| a60c0954 | 4522 | LEAVE; |
| 93965878 NIS |
4523 | SPAGAIN; |
| 4524 | RETURN; | |
| 4525 | } | |
| 79072805 | 4526 | |
| a0d0e21e | 4527 | SP++; |
| 79072805 | 4528 | |
| a0d0e21e | 4529 | if (++MARK < SP) { |
| 4ea561bc | 4530 | offset = i = SvIV(*MARK); |
| a0d0e21e | 4531 | if (offset < 0) |
| 93965878 | 4532 | offset += AvFILLp(ary) + 1; |
| a0d0e21e | 4533 | else |
| fc15ae8f | 4534 | offset -= CopARYBASE_get(PL_curcop); |
| 84902520 | 4535 | if (offset < 0) |
| cea2e8a9 | 4536 | DIE(aTHX_ PL_no_aelem, i); |
| a0d0e21e LW |
4537 | if (++MARK < SP) { |
| 4538 | length = SvIVx(*MARK++); | |
| 48cdf507 GA |
4539 | if (length < 0) { |
| 4540 | length += AvFILLp(ary) - offset + 1; | |
| 4541 | if (length < 0) | |
| 4542 | length = 0; | |
| 4543 | } | |
| 79072805 LW |
4544 | } |
| 4545 | else | |
| a0d0e21e | 4546 | length = AvMAX(ary) + 1; /* close enough to infinity */ |
| 79072805 | 4547 | } |
| a0d0e21e LW |
4548 | else { |
| 4549 | offset = 0; | |
| 4550 | length = AvMAX(ary) + 1; | |
| 4551 | } | |
| 8cbc2e3b | 4552 | if (offset > AvFILLp(ary) + 1) { |
| a2a5de95 | 4553 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), "splice() offset past end of array" ); |
| 93965878 | 4554 | offset = AvFILLp(ary) + 1; |
| 8cbc2e3b | 4555 | } |
| 93965878 | 4556 | after = AvFILLp(ary) + 1 - (offset + length); |
| a0d0e21e LW |
4557 | if (after < 0) { /* not that much array */ |
| 4558 | length += after; /* offset+length now in array */ | |
| 4559 | after = 0; | |
| 4560 | if (!AvALLOC(ary)) | |
| 4561 | av_extend(ary, 0); | |
| 4562 | } | |
| 4563 | ||
| 4564 | /* At this point, MARK .. SP-1 is our new LIST */ | |
| 4565 | ||
| 4566 | newlen = SP - MARK; | |
| 4567 | diff = newlen - length; | |
| 13d7cbc1 GS |
4568 | if (newlen && !AvREAL(ary) && AvREIFY(ary)) |
| 4569 | av_reify(ary); | |
| a0d0e21e | 4570 | |
| 50528de0 WL |
4571 | /* make new elements SVs now: avoid problems if they're from the array */ |
| 4572 | for (dst = MARK, i = newlen; i; i--) { | |
| 1b6737cc | 4573 | SV * const h = *dst; |
| f2b990bf | 4574 | *dst++ = newSVsv(h); |
| 50528de0 WL |
4575 | } |
| 4576 | ||
| a0d0e21e | 4577 | if (diff < 0) { /* shrinking the area */ |
| 95b63a38 | 4578 | SV **tmparyval = NULL; |
| a0d0e21e | 4579 | if (newlen) { |
| a02a5408 | 4580 | Newx(tmparyval, newlen, SV*); /* so remember insertion */ |
| a0d0e21e | 4581 | Copy(MARK, tmparyval, newlen, SV*); |
| 79072805 | 4582 | } |
| a0d0e21e LW |
4583 | |
| 4584 | MARK = ORIGMARK + 1; | |
| 4585 | if (GIMME == G_ARRAY) { /* copy return vals to stack */ | |
| 4586 | MEXTEND(MARK, length); | |
| 4587 | Copy(AvARRAY(ary)+offset, MARK, length, SV*); | |
| 4588 | if (AvREAL(ary)) { | |
| bbce6d69 | 4589 | EXTEND_MORTAL(length); |
| 36477c24 | 4590 | for (i = length, dst = MARK; i; i--) { |
| d689ffdd | 4591 | sv_2mortal(*dst); /* free them eventualy */ |
| 36477c24 | 4592 | dst++; |
| 4593 | } | |
| a0d0e21e LW |
4594 | } |
| 4595 | MARK += length - 1; | |
| 79072805 | 4596 | } |
| a0d0e21e LW |
4597 | else { |
| 4598 | *MARK = AvARRAY(ary)[offset+length-1]; | |
| 4599 | if (AvREAL(ary)) { | |
| d689ffdd | 4600 | sv_2mortal(*MARK); |
| a0d0e21e LW |
4601 | for (i = length - 1, dst = &AvARRAY(ary)[offset]; i > 0; i--) |
| 4602 | SvREFCNT_dec(*dst++); /* free them now */ | |
| 79072805 | 4603 | } |
| a0d0e21e | 4604 | } |
| 93965878 | 4605 | AvFILLp(ary) += diff; |
| a0d0e21e LW |
4606 | |
| 4607 | /* pull up or down? */ | |
| 4608 | ||
| 4609 | if (offset < after) { /* easier to pull up */ | |
| 4610 | if (offset) { /* esp. if nothing to pull */ | |
| 4611 | src = &AvARRAY(ary)[offset-1]; | |
| 4612 | dst = src - diff; /* diff is negative */ | |
| 4613 | for (i = offset; i > 0; i--) /* can't trust Copy */ | |
| 4614 | *dst-- = *src--; | |
| 79072805 | 4615 | } |
| a0d0e21e | 4616 | dst = AvARRAY(ary); |
| 9c6bc640 | 4617 | AvARRAY(ary) = AvARRAY(ary) - diff; /* diff is negative */ |
| a0d0e21e LW |
4618 | AvMAX(ary) += diff; |
| 4619 | } | |
| 4620 | else { | |
| 4621 | if (after) { /* anything to pull down? */ | |
| 4622 | src = AvARRAY(ary) + offset + length; | |
| 4623 | dst = src + diff; /* diff is negative */ | |
| 4624 | Move(src, dst, after, SV*); | |
| 79072805 | 4625 | } |
| 93965878 | 4626 | dst = &AvARRAY(ary)[AvFILLp(ary)+1]; |
| a0d0e21e LW |
4627 | /* avoid later double free */ |
| 4628 | } | |
| 4629 | i = -diff; | |
| 4630 | while (i) | |
| 3280af22 | 4631 | dst[--i] = &PL_sv_undef; |
| a0d0e21e LW |
4632 | |
| 4633 | if (newlen) { | |
| 50528de0 | 4634 | Copy( tmparyval, AvARRAY(ary) + offset, newlen, SV* ); |
| a0d0e21e LW |
4635 | Safefree(tmparyval); |
| 4636 | } | |
| 4637 | } | |
| 4638 | else { /* no, expanding (or same) */ | |
| d3961450 | 4639 | SV** tmparyval = NULL; |
| a0d0e21e | 4640 | if (length) { |
| a02a5408 | 4641 | Newx(tmparyval, length, SV*); /* so remember deletion */ |
| a0d0e21e LW |
4642 | Copy(AvARRAY(ary)+offset, tmparyval, length, SV*); |
| 4643 | } | |
| 4644 | ||
| 4645 | if (diff > 0) { /* expanding */ | |
| a0d0e21e | 4646 | /* push up or down? */ |
| a0d0e21e LW |
4647 | if (offset < after && diff <= AvARRAY(ary) - AvALLOC(ary)) { |
| 4648 | if (offset) { | |
| 4649 | src = AvARRAY(ary); | |
| 4650 | dst = src - diff; | |
| 4651 | Move(src, dst, offset, SV*); | |
| 79072805 | 4652 | } |
| 9c6bc640 | 4653 | AvARRAY(ary) = AvARRAY(ary) - diff;/* diff is positive */ |
| a0d0e21e | 4654 | AvMAX(ary) += diff; |
| 93965878 | 4655 | AvFILLp(ary) += diff; |
| 79072805 LW |
4656 | } |
| 4657 | else { | |
| 93965878 NIS |
4658 | if (AvFILLp(ary) + diff >= AvMAX(ary)) /* oh, well */ |
| 4659 | av_extend(ary, AvFILLp(ary) + diff); | |
| 4660 | AvFILLp(ary) += diff; | |
| a0d0e21e LW |
4661 | |
| 4662 | if (after) { | |
| 93965878 | 4663 | dst = AvARRAY(ary) + AvFILLp(ary); |
| a0d0e21e LW |
4664 | src = dst - diff; |
| 4665 | for (i = after; i; i--) { | |
| 4666 | *dst-- = *src--; | |
| 4667 | } | |
| 79072805 LW |
4668 | } |
| 4669 | } | |
| a0d0e21e LW |
4670 | } |
| 4671 | ||
| 50528de0 WL |
4672 | if (newlen) { |
| 4673 | Copy( MARK, AvARRAY(ary) + offset, newlen, SV* ); | |
| a0d0e21e | 4674 | } |
| 50528de0 | 4675 | |
| a0d0e21e LW |
4676 | MARK = ORIGMARK + 1; |
| 4677 | if (GIMME == G_ARRAY) { /* copy return vals to stack */ | |
| 4678 | if (length) { | |
| 4679 | Copy(tmparyval, MARK, length, SV*); | |
| 4680 | if (AvREAL(ary)) { | |
| bbce6d69 | 4681 | EXTEND_MORTAL(length); |
| 36477c24 | 4682 | for (i = length, dst = MARK; i; i--) { |
| d689ffdd | 4683 | sv_2mortal(*dst); /* free them eventualy */ |
| 36477c24 | 4684 | dst++; |
| 4685 | } | |
| 79072805 LW |
4686 | } |
| 4687 | } | |
| a0d0e21e LW |
4688 | MARK += length - 1; |
| 4689 | } | |
| 4690 | else if (length--) { | |
| 4691 | *MARK = tmparyval[length]; | |
| 4692 | if (AvREAL(ary)) { | |
| d689ffdd | 4693 | sv_2mortal(*MARK); |
| a0d0e21e LW |
4694 | while (length-- > 0) |
| 4695 | SvREFCNT_dec(tmparyval[length]); | |
| 79072805 | 4696 | } |
| 79072805 | 4697 | } |
| a0d0e21e | 4698 | else |
| 3280af22 | 4699 | *MARK = &PL_sv_undef; |
| d3961450 | 4700 | Safefree(tmparyval); |
| 79072805 | 4701 | } |
| a0d0e21e | 4702 | SP = MARK; |
| 79072805 LW |
4703 | RETURN; |
| 4704 | } | |
| 4705 | ||
| a0d0e21e | 4706 | PP(pp_push) |
| 79072805 | 4707 | { |
| 27da23d5 | 4708 | dVAR; dSP; dMARK; dORIGMARK; dTARGET; |
| 502c6561 | 4709 | register AV * const ary = MUTABLE_AV(*++MARK); |
| ad64d0ec | 4710 | const MAGIC * const mg = SvTIED_mg((const SV *)ary, PERL_MAGIC_tied); |
| 79072805 | 4711 | |
| 1b6737cc | 4712 | if (mg) { |
| ad64d0ec | 4713 | *MARK-- = SvTIED_obj(MUTABLE_SV(ary), mg); |
| 93965878 NIS |
4714 | PUSHMARK(MARK); |
| 4715 | PUTBACK; | |
| a60c0954 | 4716 | ENTER; |
| 864dbfa3 | 4717 | call_method("PUSH",G_SCALAR|G_DISCARD); |
| a60c0954 | 4718 | LEAVE; |
| 93965878 | 4719 | SPAGAIN; |
| 93965878 | 4720 | } |
| a60c0954 | 4721 | else { |
| 89c14e2e | 4722 | PL_delaymagic = DM_DELAY; |
| a60c0954 | 4723 | for (++MARK; MARK <= SP; MARK++) { |
| 561b68a9 | 4724 | SV * const sv = newSV(0); |
| a60c0954 NIS |
4725 | if (*MARK) |
| 4726 | sv_setsv(sv, *MARK); | |
| 0a75904b | 4727 | av_store(ary, AvFILLp(ary)+1, sv); |
| a60c0954 | 4728 | } |
| 89c14e2e | 4729 | if (PL_delaymagic & DM_ARRAY) |
| ad64d0ec | 4730 | mg_set(MUTABLE_SV(ary)); |
| 89c14e2e BB |
4731 | |
| 4732 | PL_delaymagic = 0; | |
| 6eeabd23 VP |
4733 | } |
| 4734 | SP = ORIGMARK; | |
| 4735 | if (OP_GIMME(PL_op, 0) != G_VOID) { | |
| 4736 | PUSHi( AvFILL(ary) + 1 ); | |
| 79072805 | 4737 | } |
| 79072805 LW |
4738 | RETURN; |
| 4739 | } | |
| 4740 | ||
| a0d0e21e | 4741 | PP(pp_shift) |
| 79072805 | 4742 | { |
| 97aff369 | 4743 | dVAR; |
| 39644a26 | 4744 | dSP; |
| 502c6561 | 4745 | AV * const av = MUTABLE_AV(POPs); |
| 789b4bc9 | 4746 | SV * const sv = PL_op->op_type == OP_SHIFT ? av_shift(av) : av_pop(av); |
| 79072805 | 4747 | EXTEND(SP, 1); |
| c2b4a044 | 4748 | assert (sv); |
| d689ffdd | 4749 | if (AvREAL(av)) |
| a0d0e21e LW |
4750 | (void)sv_2mortal(sv); |
| 4751 | PUSHs(sv); | |
| 79072805 | 4752 | RETURN; |
| 79072805 LW |
4753 | } |
| 4754 | ||
| a0d0e21e | 4755 | PP(pp_unshift) |
| 79072805 | 4756 | { |
| 27da23d5 | 4757 | dVAR; dSP; dMARK; dORIGMARK; dTARGET; |
| 502c6561 | 4758 | register AV *ary = MUTABLE_AV(*++MARK); |
| ad64d0ec | 4759 | const MAGIC * const mg = SvTIED_mg((const SV *)ary, PERL_MAGIC_tied); |
| 93965878 | 4760 | |
| 1b6737cc | 4761 | if (mg) { |
| ad64d0ec | 4762 | *MARK-- = SvTIED_obj(MUTABLE_SV(ary), mg); |
| 7fd66d9d | 4763 | PUSHMARK(MARK); |
| 93965878 | 4764 | PUTBACK; |
| a60c0954 | 4765 | ENTER; |
| 864dbfa3 | 4766 | call_method("UNSHIFT",G_SCALAR|G_DISCARD); |
| a60c0954 | 4767 | LEAVE; |
| 93965878 | 4768 | SPAGAIN; |
| 93965878 | 4769 | } |
| a60c0954 | 4770 | else { |
| 1b6737cc | 4771 | register I32 i = 0; |
| a60c0954 NIS |
4772 | av_unshift(ary, SP - MARK); |
| 4773 | while (MARK < SP) { | |
| 1b6737cc | 4774 | SV * const sv = newSVsv(*++MARK); |
| a60c0954 NIS |
4775 | (void)av_store(ary, i++, sv); |
| 4776 | } | |
| 79072805 | 4777 | } |
| a0d0e21e | 4778 | SP = ORIGMARK; |
| 6eeabd23 | 4779 | if (OP_GIMME(PL_op, 0) != G_VOID) { |
| 5658d0a9 LR |
4780 | PUSHi( AvFILL(ary) + 1 ); |
| 4781 | } | |
| 79072805 | 4782 | RETURN; |
| 79072805 LW |
4783 | } |
| 4784 | ||
| a0d0e21e | 4785 | PP(pp_reverse) |
| 79072805 | 4786 | { |
| 97aff369 | 4787 | dVAR; dSP; dMARK; |
| 1b6737cc | 4788 | SV ** const oldsp = SP; |
| 79072805 | 4789 | |
| a0d0e21e LW |
4790 | if (GIMME == G_ARRAY) { |
| 4791 | MARK++; | |
| 4792 | while (MARK < SP) { | |
| 1b6737cc | 4793 | register SV * const tmp = *MARK; |
| a0d0e21e LW |
4794 | *MARK++ = *SP; |
| 4795 | *SP-- = tmp; | |
| 4796 | } | |
| dd58a1ab | 4797 | /* safe as long as stack cannot get extended in the above */ |
| a0d0e21e | 4798 | SP = oldsp; |
| 79072805 LW |
4799 | } |
| 4800 | else { | |
| a0d0e21e LW |
4801 | register char *up; |
| 4802 | register char *down; | |
| 4803 | register I32 tmp; | |
| 4804 | dTARGET; | |
| 4805 | STRLEN len; | |
| 9f7d9405 | 4806 | PADOFFSET padoff_du; |
| 79072805 | 4807 | |
| 7e2040f0 | 4808 | SvUTF8_off(TARG); /* decontaminate */ |
| a0d0e21e | 4809 | if (SP - MARK > 1) |
| 3280af22 | 4810 | do_join(TARG, &PL_sv_no, MARK, SP); |
| 1e21d011 | 4811 | else { |
| e1f795dc RGS |
4812 | sv_setsv(TARG, (SP > MARK) |
| 4813 | ? *SP | |
| 29289021 | 4814 | : (padoff_du = find_rundefsvoffset(), |
| 00b1698f NC |
4815 | (padoff_du == NOT_IN_PAD |
| 4816 | || PAD_COMPNAME_FLAGS_isOUR(padoff_du)) | |
| e1f795dc | 4817 | ? DEFSV : PAD_SVl(padoff_du))); |
| 1e21d011 B |
4818 | |
| 4819 | if (! SvOK(TARG) && ckWARN(WARN_UNINITIALIZED)) | |
| 4820 | report_uninit(TARG); | |
| 4821 | } | |
| 4822 | ||
| a0d0e21e LW |
4823 | up = SvPV_force(TARG, len); |
| 4824 | if (len > 1) { | |
| 7e2040f0 | 4825 | if (DO_UTF8(TARG)) { /* first reverse each character */ |
| dfe13c55 | 4826 | U8* s = (U8*)SvPVX(TARG); |
| 349d4f2f | 4827 | const U8* send = (U8*)(s + len); |
| a0ed51b3 | 4828 | while (s < send) { |
| d742c382 | 4829 | if (UTF8_IS_INVARIANT(*s)) { |
| a0ed51b3 LW |
4830 | s++; |
| 4831 | continue; | |
| 4832 | } | |
| 4833 | else { | |
| 9041c2e3 | 4834 | if (!utf8_to_uvchr(s, 0)) |
| a0dbb045 | 4835 | break; |
| dfe13c55 | 4836 | up = (char*)s; |
| a0ed51b3 | 4837 | s += UTF8SKIP(s); |
| dfe13c55 | 4838 | down = (char*)(s - 1); |
| a0dbb045 | 4839 | /* reverse this character */ |
| a0ed51b3 LW |
4840 | while (down > up) { |
| 4841 | tmp = *up; | |
| 4842 | *up++ = *down; | |
| eb160463 | 4843 | *down-- = (char)tmp; |
| a0ed51b3 LW |
4844 | } |
| 4845 | } | |
| 4846 | } | |
| 4847 | up = SvPVX(TARG); | |
| 4848 | } | |
| a0d0e21e LW |
4849 | down = SvPVX(TARG) + len - 1; |
| 4850 | while (down > up) { | |
| 4851 | tmp = *up; | |
| 4852 | *up++ = *down; | |
| eb160463 | 4853 | *down-- = (char)tmp; |
| a0d0e21e | 4854 | } |
| 3aa33fe5 | 4855 | (void)SvPOK_only_UTF8(TARG); |
| 79072805 | 4856 | } |
| a0d0e21e LW |
4857 | SP = MARK + 1; |
| 4858 | SETTARG; | |
| 79072805 | 4859 | } |
| a0d0e21e | 4860 | RETURN; |
| 79072805 LW |
4861 | } |
| 4862 | ||
| a0d0e21e | 4863 | PP(pp_split) |
| 79072805 | 4864 | { |
| 27da23d5 | 4865 | dVAR; dSP; dTARG; |
| a0d0e21e | 4866 | AV *ary; |
| 467f0320 | 4867 | register IV limit = POPi; /* note, negative is forever */ |
| 1b6737cc | 4868 | SV * const sv = POPs; |
| a0d0e21e | 4869 | STRLEN len; |
| 727b7506 | 4870 | register const char *s = SvPV_const(sv, len); |
| 1b6737cc | 4871 | const bool do_utf8 = DO_UTF8(sv); |
| 727b7506 | 4872 | const char *strend = s + len; |
| 44a8e56a | 4873 | register PMOP *pm; |
| d9f97599 | 4874 | register REGEXP *rx; |
| a0d0e21e | 4875 | register SV *dstr; |
| 727b7506 | 4876 | register const char *m; |
| a0d0e21e | 4877 | I32 iters = 0; |
| bb7a0f54 | 4878 | const STRLEN slen = do_utf8 ? utf8_length((U8*)s, (U8*)strend) : (STRLEN)(strend - s); |
| 792b2c16 | 4879 | I32 maxiters = slen + 10; |
| c1a7495a | 4880 | I32 trailing_empty = 0; |
| 727b7506 | 4881 | const char *orig; |
| 1b6737cc | 4882 | const I32 origlimit = limit; |
| a0d0e21e LW |
4883 | I32 realarray = 0; |
| 4884 | I32 base; | |
| f54cb97a | 4885 | const I32 gimme = GIMME_V; |
| c1a7495a | 4886 | const bool gimme_scalar = (GIMME_V == G_SCALAR); |
| f54cb97a | 4887 | const I32 oldsave = PL_savestack_ix; |
| 437d3b4e | 4888 | U32 make_mortal = SVs_TEMP; |
| 7fba1cd6 | 4889 | bool multiline = 0; |
| b37c2d43 | 4890 | MAGIC *mg = NULL; |
| 79072805 | 4891 | |
| 44a8e56a | 4892 | #ifdef DEBUGGING |
| 4893 | Copy(&LvTARGOFF(POPs), &pm, 1, PMOP*); | |
| 4894 | #else | |
| 4895 | pm = (PMOP*)POPs; | |
| 4896 | #endif | |
| a0d0e21e | 4897 | if (!pm || !s) |
| 2269b42e | 4898 | DIE(aTHX_ "panic: pp_split"); |
| aaa362c4 | 4899 | rx = PM_GETRE(pm); |
| bbce6d69 | 4900 | |
| 07bc277f NC |
4901 | TAINT_IF((RX_EXTFLAGS(rx) & RXf_PMf_LOCALE) && |
| 4902 | (RX_EXTFLAGS(rx) & (RXf_WHITE | RXf_SKIPWHITE))); | |
| bbce6d69 | 4903 | |
| a30b2f1f | 4904 | RX_MATCH_UTF8_set(rx, do_utf8); |
| d9f424b2 | 4905 | |
| 971a9dd3 | 4906 | #ifdef USE_ITHREADS |
| 20e98b0f | 4907 | if (pm->op_pmreplrootu.op_pmtargetoff) { |
| 159b6efe | 4908 | ary = GvAVn(MUTABLE_GV(PAD_SVl(pm->op_pmreplrootu.op_pmtargetoff))); |
| 20e98b0f | 4909 | } |
| 971a9dd3 | 4910 | #else |
| 20e98b0f NC |
4911 | if (pm->op_pmreplrootu.op_pmtargetgv) { |
| 4912 | ary = GvAVn(pm->op_pmreplrootu.op_pmtargetgv); | |
| 971a9dd3 | 4913 | } |
| 20e98b0f | 4914 | #endif |
| 79072805 | 4915 | else |
| 7d49f689 | 4916 | ary = NULL; |
| a0d0e21e LW |
4917 | if (ary && (gimme != G_ARRAY || (pm->op_pmflags & PMf_ONCE))) { |
| 4918 | realarray = 1; | |
| 8ec5e241 | 4919 | PUTBACK; |
| a0d0e21e LW |
4920 | av_extend(ary,0); |
| 4921 | av_clear(ary); | |
| 8ec5e241 | 4922 | SPAGAIN; |
| ad64d0ec | 4923 | if ((mg = SvTIED_mg((const SV *)ary, PERL_MAGIC_tied))) { |
| 8ec5e241 | 4924 | PUSHMARK(SP); |
| ad64d0ec | 4925 | XPUSHs(SvTIED_obj(MUTABLE_SV(ary), mg)); |
| 8ec5e241 NIS |
4926 | } |
| 4927 | else { | |
| 1c0b011c | 4928 | if (!AvREAL(ary)) { |
| 1b6737cc | 4929 | I32 i; |
| 1c0b011c | 4930 | AvREAL_on(ary); |
| abff13bb | 4931 | AvREIFY_off(ary); |
| 1c0b011c | 4932 | for (i = AvFILLp(ary); i >= 0; i--) |
| 3280af22 | 4933 | AvARRAY(ary)[i] = &PL_sv_undef; /* don't free mere refs */ |
| 1c0b011c NIS |
4934 | } |
| 4935 | /* temporarily switch stacks */ | |
| 8b7059b1 | 4936 | SAVESWITCHSTACK(PL_curstack, ary); |
| 8ec5e241 | 4937 | make_mortal = 0; |
| 1c0b011c | 4938 | } |
| 79072805 | 4939 | } |
| 3280af22 | 4940 | base = SP - PL_stack_base; |
| a0d0e21e | 4941 | orig = s; |
| 07bc277f | 4942 | if (RX_EXTFLAGS(rx) & RXf_SKIPWHITE) { |
| 613f191e TS |
4943 | if (do_utf8) { |
| 4944 | while (*s == ' ' || is_utf8_space((U8*)s)) | |
| 4945 | s += UTF8SKIP(s); | |
| 4946 | } | |
| 07bc277f | 4947 | else if (RX_EXTFLAGS(rx) & RXf_PMf_LOCALE) { |
| bbce6d69 | 4948 | while (isSPACE_LC(*s)) |
| 4949 | s++; | |
| 4950 | } | |
| 4951 | else { | |
| 4952 | while (isSPACE(*s)) | |
| 4953 | s++; | |
| 4954 | } | |
| a0d0e21e | 4955 | } |
| 07bc277f | 4956 | if (RX_EXTFLAGS(rx) & PMf_MULTILINE) { |
| 7fba1cd6 | 4957 | multiline = 1; |
| c07a80fd | 4958 | } |
| 4959 | ||
| a0d0e21e LW |
4960 | if (!limit) |
| 4961 | limit = maxiters + 2; | |
| 07bc277f | 4962 | if (RX_EXTFLAGS(rx) & RXf_WHITE) { |
| a0d0e21e | 4963 | while (--limit) { |
| bbce6d69 | 4964 | m = s; |
| 8727f688 YO |
4965 | /* this one uses 'm' and is a negative test */ |
| 4966 | if (do_utf8) { | |
| 613f191e TS |
4967 | while (m < strend && !( *m == ' ' || is_utf8_space((U8*)m) )) { |
| 4968 | const int t = UTF8SKIP(m); | |
| 4969 | /* is_utf8_space returns FALSE for malform utf8 */ | |
| 4970 | if (strend - m < t) | |
| 4971 | m = strend; | |
| 4972 | else | |
| 4973 | m += t; | |
| 4974 | } | |
| 07bc277f | 4975 | } else if (RX_EXTFLAGS(rx) & RXf_PMf_LOCALE) { |
| 8727f688 YO |
4976 | while (m < strend && !isSPACE_LC(*m)) |
| 4977 | ++m; | |
| 4978 | } else { | |
| 4979 | while (m < strend && !isSPACE(*m)) | |
| 4980 | ++m; | |
| 4981 | } | |
| a0d0e21e LW |
4982 | if (m >= strend) |
| 4983 | break; | |
| bbce6d69 | 4984 | |
| c1a7495a BB |
4985 | if (gimme_scalar) { |
| 4986 | iters++; | |
| 4987 | if (m-s == 0) | |
| 4988 | trailing_empty++; | |
| 4989 | else | |
| 4990 | trailing_empty = 0; | |
| 4991 | } else { | |
| 4992 | dstr = newSVpvn_flags(s, m-s, | |
| 4993 | (do_utf8 ? SVf_UTF8 : 0) | make_mortal); | |
| 4994 | XPUSHs(dstr); | |
| 4995 | } | |
| bbce6d69 | 4996 | |
| 613f191e TS |
4997 | /* skip the whitespace found last */ |
| 4998 | if (do_utf8) | |
| 4999 | s = m + UTF8SKIP(m); | |
| 5000 | else | |
| 5001 | s = m + 1; | |
| 5002 | ||
| 8727f688 YO |
5003 | /* this one uses 's' and is a positive test */ |
| 5004 | if (do_utf8) { | |
| 613f191e | 5005 | while (s < strend && ( *s == ' ' || is_utf8_space((U8*)s) )) |
| 8727f688 | 5006 | s += UTF8SKIP(s); |
| 07bc277f | 5007 | } else if (RX_EXTFLAGS(rx) & RXf_PMf_LOCALE) { |
| 8727f688 YO |
5008 | while (s < strend && isSPACE_LC(*s)) |
| 5009 | ++s; | |
| 5010 | } else { | |
| 5011 | while (s < strend && isSPACE(*s)) | |
| 5012 | ++s; | |
| 5013 | } | |
| 79072805 LW |
5014 | } |
| 5015 | } | |
| 07bc277f | 5016 | else if (RX_EXTFLAGS(rx) & RXf_START_ONLY) { |
| a0d0e21e | 5017 | while (--limit) { |
| a6e20a40 AL |
5018 | for (m = s; m < strend && *m != '\n'; m++) |
| 5019 | ; | |
| a0d0e21e LW |
5020 | m++; |
| 5021 | if (m >= strend) | |
| 5022 | break; | |
| c1a7495a BB |
5023 | |
| 5024 | if (gimme_scalar) { | |
| 5025 | iters++; | |
| 5026 | if (m-s == 0) | |
| 5027 | trailing_empty++; | |
| 5028 | else | |
| 5029 | trailing_empty = 0; | |
| 5030 | } else { | |
| 5031 | dstr = newSVpvn_flags(s, m-s, | |
| 5032 | (do_utf8 ? SVf_UTF8 : 0) | make_mortal); | |
| 5033 | XPUSHs(dstr); | |
| 5034 | } | |
| a0d0e21e LW |
5035 | s = m; |
| 5036 | } | |
| 5037 | } | |
| 07bc277f | 5038 | else if (RX_EXTFLAGS(rx) & RXf_NULL && !(s >= strend)) { |
| 640f820d AB |
5039 | /* |
| 5040 | Pre-extend the stack, either the number of bytes or | |
| 5041 | characters in the string or a limited amount, triggered by: | |
| 5042 | ||
| 5043 | my ($x, $y) = split //, $str; | |
| 5044 | or | |
| 5045 | split //, $str, $i; | |
| 5046 | */ | |
| c1a7495a BB |
5047 | if (!gimme_scalar) { |
| 5048 | const U32 items = limit - 1; | |
| 5049 | if (items < slen) | |
| 5050 | EXTEND(SP, items); | |
| 5051 | else | |
| 5052 | EXTEND(SP, slen); | |
| 5053 | } | |
| 640f820d | 5054 | |
| e9515b0f AB |
5055 | if (do_utf8) { |
| 5056 | while (--limit) { | |
| 5057 | /* keep track of how many bytes we skip over */ | |
| 5058 | m = s; | |
| 640f820d | 5059 | s += UTF8SKIP(s); |
| c1a7495a BB |
5060 | if (gimme_scalar) { |
| 5061 | iters++; | |
| 5062 | if (s-m == 0) | |
| 5063 | trailing_empty++; | |
| 5064 | else | |
| 5065 | trailing_empty = 0; | |
| 5066 | } else { | |
| 5067 | dstr = newSVpvn_flags(m, s-m, SVf_UTF8 | make_mortal); | |
| 640f820d | 5068 | |
| c1a7495a BB |
5069 | PUSHs(dstr); |
| 5070 | } | |
| 640f820d | 5071 | |
| e9515b0f AB |
5072 | if (s >= strend) |
| 5073 | break; | |
| 5074 | } | |
| 5075 | } else { | |
| 5076 | while (--limit) { | |
| c1a7495a BB |
5077 | if (gimme_scalar) { |
| 5078 | iters++; | |
| 5079 | } else { | |
| 5080 | dstr = newSVpvn(s, 1); | |
| e9515b0f | 5081 | |
| e9515b0f | 5082 | |
| c1a7495a BB |
5083 | if (make_mortal) |
| 5084 | sv_2mortal(dstr); | |
| 640f820d | 5085 | |
| c1a7495a BB |
5086 | PUSHs(dstr); |
| 5087 | } | |
| 5088 | ||
| 5089 | s++; | |
| e9515b0f AB |
5090 | |
| 5091 | if (s >= strend) | |
| 5092 | break; | |
| 5093 | } | |
| 640f820d AB |
5094 | } |
| 5095 | } | |
| 3c8556c3 | 5096 | else if (do_utf8 == (RX_UTF8(rx) != 0) && |
| 07bc277f NC |
5097 | (RX_EXTFLAGS(rx) & RXf_USE_INTUIT) && !RX_NPARENS(rx) |
| 5098 | && (RX_EXTFLAGS(rx) & RXf_CHECK_ALL) | |
| 5099 | && !(RX_EXTFLAGS(rx) & RXf_ANCH)) { | |
| 5100 | const int tail = (RX_EXTFLAGS(rx) & RXf_INTUIT_TAIL); | |
| f9f4320a | 5101 | SV * const csv = CALLREG_INTUIT_STRING(rx); |
| cf93c79d | 5102 | |
| 07bc277f | 5103 | len = RX_MINLENRET(rx); |
| 3c8556c3 | 5104 | if (len == 1 && !RX_UTF8(rx) && !tail) { |
| 1b6737cc | 5105 | const char c = *SvPV_nolen_const(csv); |
| a0d0e21e | 5106 | while (--limit) { |
| a6e20a40 AL |
5107 | for (m = s; m < strend && *m != c; m++) |
| 5108 | ; | |
| a0d0e21e LW |
5109 | if (m >= strend) |
| 5110 | break; | |
| c1a7495a BB |
5111 | if (gimme_scalar) { |
| 5112 | iters++; | |
| 5113 | if (m-s == 0) | |
| 5114 | trailing_empty++; | |
| 5115 | else | |
| 5116 | trailing_empty = 0; | |
| 5117 | } else { | |
| 5118 | dstr = newSVpvn_flags(s, m-s, | |
| 5119 | (do_utf8 ? SVf_UTF8 : 0) | make_mortal); | |
| 5120 | XPUSHs(dstr); | |
| 5121 | } | |
| 93f04dac JH |
5122 | /* The rx->minlen is in characters but we want to step |
| 5123 | * s ahead by bytes. */ | |
| 1aa99e6b IH |
5124 | if (do_utf8) |
| 5125 | s = (char*)utf8_hop((U8*)m, len); | |
| 5126 | else | |
| 5127 | s = m + len; /* Fake \n at the end */ | |
| a0d0e21e LW |
5128 | } |
| 5129 | } | |
| 5130 | else { | |
| a0d0e21e | 5131 | while (s < strend && --limit && |
| f722798b | 5132 | (m = fbm_instr((unsigned char*)s, (unsigned char*)strend, |
| 7fba1cd6 | 5133 | csv, multiline ? FBMrf_MULTILINE : 0)) ) |
| a0d0e21e | 5134 | { |
| c1a7495a BB |
5135 | if (gimme_scalar) { |
| 5136 | iters++; | |
| 5137 | if (m-s == 0) | |
| 5138 | trailing_empty++; | |
| 5139 | else | |
| 5140 | trailing_empty = 0; | |
| 5141 | } else { | |
| 5142 | dstr = newSVpvn_flags(s, m-s, | |
| 5143 | (do_utf8 ? SVf_UTF8 : 0) | make_mortal); | |
| 5144 | XPUSHs(dstr); | |
| 5145 | } | |
| 93f04dac JH |
5146 | /* The rx->minlen is in characters but we want to step |
| 5147 | * s ahead by bytes. */ | |
| 1aa99e6b IH |
5148 | if (do_utf8) |
| 5149 | s = (char*)utf8_hop((U8*)m, len); | |
| 5150 | else | |
| 5151 | s = m + len; /* Fake \n at the end */ | |
| a0d0e21e | 5152 | } |
| 463ee0b2 | 5153 | } |
| 463ee0b2 | 5154 | } |
| a0d0e21e | 5155 | else { |
| 07bc277f | 5156 | maxiters += slen * RX_NPARENS(rx); |
| 080c2dec | 5157 | while (s < strend && --limit) |
| bbce6d69 | 5158 | { |
| 1b6737cc | 5159 | I32 rex_return; |
| 080c2dec | 5160 | PUTBACK; |
| f9f4320a | 5161 | rex_return = CALLREGEXEC(rx, (char*)s, (char*)strend, (char*)orig, 1 , |
| 727b7506 | 5162 | sv, NULL, 0); |
| 080c2dec | 5163 | SPAGAIN; |
| 1b6737cc | 5164 | if (rex_return == 0) |
| 080c2dec | 5165 | break; |
| d9f97599 | 5166 | TAINT_IF(RX_MATCH_TAINTED(rx)); |
| 07bc277f | 5167 | if (RX_MATCH_COPIED(rx) && RX_SUBBEG(rx) != orig) { |
| a0d0e21e LW |
5168 | m = s; |
| 5169 | s = orig; | |
| 07bc277f | 5170 | orig = RX_SUBBEG(rx); |
| a0d0e21e LW |
5171 | s = orig + (m - s); |
| 5172 | strend = s + (strend - m); | |
| 5173 | } | |
| 07bc277f | 5174 | m = RX_OFFS(rx)[0].start + orig; |
| c1a7495a BB |
5175 | |
| 5176 | if (gimme_scalar) { | |
| 5177 | iters++; | |
| 5178 | if (m-s == 0) | |
| 5179 | trailing_empty++; | |
| 5180 | else | |
| 5181 | trailing_empty = 0; | |
| 5182 | } else { | |
| 5183 | dstr = newSVpvn_flags(s, m-s, | |
| 5184 | (do_utf8 ? SVf_UTF8 : 0) | make_mortal); | |
| 5185 | XPUSHs(dstr); | |
| 5186 | } | |
| 07bc277f | 5187 | if (RX_NPARENS(rx)) { |
| 1b6737cc | 5188 | I32 i; |
| 07bc277f NC |
5189 | for (i = 1; i <= (I32)RX_NPARENS(rx); i++) { |
| 5190 | s = RX_OFFS(rx)[i].start + orig; | |
| 5191 | m = RX_OFFS(rx)[i].end + orig; | |
| 6de67870 JP |
5192 | |
| 5193 | /* japhy (07/27/01) -- the (m && s) test doesn't catch | |
| 5194 | parens that didn't match -- they should be set to | |
| 5195 | undef, not the empty string */ | |
| c1a7495a BB |
5196 | if (gimme_scalar) { |
| 5197 | iters++; | |
| 5198 | if (m-s == 0) | |
| 5199 | trailing_empty++; | |
| 5200 | else | |
| 5201 | trailing_empty = 0; | |
| 5202 | } else { | |
| 5203 | if (m >= orig && s >= orig) { | |
| 5204 | dstr = newSVpvn_flags(s, m-s, | |
| 5205 | (do_utf8 ? SVf_UTF8 : 0) | |
| 5206 | | make_mortal); | |
| 5207 | } | |
| 5208 | else | |
| 5209 | dstr = &PL_sv_undef; /* undef, not "" */ | |
| 5210 | XPUSHs(dstr); | |
| 748a9306 | 5211 | } |
| c1a7495a | 5212 | |
| a0d0e21e LW |
5213 | } |
| 5214 | } | |
| 07bc277f | 5215 | s = RX_OFFS(rx)[0].end + orig; |
| a0d0e21e | 5216 | } |
| 79072805 | 5217 | } |
| 8ec5e241 | 5218 | |
| c1a7495a BB |
5219 | if (!gimme_scalar) { |
| 5220 | iters = (SP - PL_stack_base) - base; | |
| 5221 | } | |
| a0d0e21e | 5222 | if (iters > maxiters) |
| cea2e8a9 | 5223 | DIE(aTHX_ "Split loop"); |
| 8ec5e241 | 5224 | |
| a0d0e21e LW |
5225 | /* keep field after final delim? */ |
| 5226 | if (s < strend || (iters && origlimit)) { | |
| c1a7495a BB |
5227 | if (!gimme_scalar) { |
| 5228 | const STRLEN l = strend - s; | |
| 5229 | dstr = newSVpvn_flags(s, l, (do_utf8 ? SVf_UTF8 : 0) | make_mortal); | |
| 5230 | XPUSHs(dstr); | |
| 5231 | } | |
| a0d0e21e | 5232 | iters++; |
| 79072805 | 5233 | } |
| a0d0e21e | 5234 | else if (!origlimit) { |
| c1a7495a BB |
5235 | if (gimme_scalar) { |
| 5236 | iters -= trailing_empty; | |
| 5237 | } else { | |
| 5238 | while (iters > 0 && (!TOPs || !SvANY(TOPs) || SvCUR(TOPs) == 0)) { | |
| 5239 | if (TOPs && !make_mortal) | |
| 5240 | sv_2mortal(TOPs); | |
| 5241 | *SP-- = &PL_sv_undef; | |
| 5242 | iters--; | |
| 5243 | } | |
| 89900bd3 | 5244 | } |
| a0d0e21e | 5245 | } |
| 8ec5e241 | 5246 | |
| 8b7059b1 DM |
5247 | PUTBACK; |
| 5248 | LEAVE_SCOPE(oldsave); /* may undo an earlier SWITCHSTACK */ | |
| 5249 | SPAGAIN; | |
| a0d0e21e | 5250 | if (realarray) { |
| 8ec5e241 | 5251 | if (!mg) { |
| 1c0b011c NIS |
5252 | if (SvSMAGICAL(ary)) { |
| 5253 | PUTBACK; | |
| ad64d0ec | 5254 | mg_set(MUTABLE_SV(ary)); |
| 1c0b011c NIS |
5255 | SPAGAIN; |
| 5256 | } | |
| 5257 | if (gimme == G_ARRAY) { | |
| 5258 | EXTEND(SP, iters); | |
| 5259 | Copy(AvARRAY(ary), SP + 1, iters, SV*); | |
| 5260 | SP += iters; | |
| 5261 | RETURN; | |
| 5262 | } | |
| 8ec5e241 | 5263 | } |
| 1c0b011c | 5264 | else { |
| fb73857a | 5265 | PUTBACK; |
| 8ec5e241 | 5266 | ENTER; |
| 864dbfa3 | 5267 | call_method("PUSH",G_SCALAR|G_DISCARD); |
| 8ec5e241 | 5268 | LEAVE; |
| fb73857a | 5269 | SPAGAIN; |
| 8ec5e241 | 5270 | if (gimme == G_ARRAY) { |
| 1b6737cc | 5271 | I32 i; |
| 8ec5e241 NIS |
5272 | /* EXTEND should not be needed - we just popped them */ |
| 5273 | EXTEND(SP, iters); | |
| 5274 | for (i=0; i < iters; i++) { | |
| 5275 | SV **svp = av_fetch(ary, i, FALSE); | |
| 3280af22 | 5276 | PUSHs((svp) ? *svp : &PL_sv_undef); |
| 8ec5e241 | 5277 | } |
| 1c0b011c NIS |
5278 | RETURN; |
| 5279 | } | |
| a0d0e21e LW |
5280 | } |
| 5281 | } | |
| 5282 | else { | |
| 5283 | if (gimme == G_ARRAY) | |
| 5284 | RETURN; | |
| 5285 | } | |
| 7f18b612 YST |
5286 | |
| 5287 | GETTARGET; | |
| 5288 | PUSHi(iters); | |
| 5289 | RETURN; | |
| 79072805 | 5290 | } |
| 85e6fe83 | 5291 | |
| c5917253 NC |
5292 | PP(pp_once) |
| 5293 | { | |
| 5294 | dSP; | |
| 5295 | SV *const sv = PAD_SVl(PL_op->op_targ); | |
| 5296 | ||
| 5297 | if (SvPADSTALE(sv)) { | |
| 5298 | /* First time. */ | |
| 5299 | SvPADSTALE_off(sv); | |
| 5300 | RETURNOP(cLOGOP->op_other); | |
| 5301 | } | |
| 5302 | RETURNOP(cLOGOP->op_next); | |
| 5303 | } | |
| 5304 | ||
| c0329465 MB |
5305 | PP(pp_lock) |
| 5306 | { | |
| 97aff369 | 5307 | dVAR; |
| 39644a26 | 5308 | dSP; |
| c0329465 | 5309 | dTOPss; |
| e55aaa0e | 5310 | SV *retsv = sv; |
| 076a2a80 | 5311 | assert(SvTYPE(retsv) != SVt_PVCV); |
| 68795e93 | 5312 | SvLOCK(sv); |
| 076a2a80 | 5313 | if (SvTYPE(retsv) == SVt_PVAV || SvTYPE(retsv) == SVt_PVHV) { |
| e55aaa0e MB |
5314 | retsv = refto(retsv); |
| 5315 | } | |
| 5316 | SETs(retsv); | |
| c0329465 MB |
5317 | RETURN; |
| 5318 | } | |
| a863c7d1 | 5319 | |
| 65bca31a NC |
5320 | |
| 5321 | PP(unimplemented_op) | |
| 5322 | { | |
| 97aff369 | 5323 | dVAR; |
| 65bca31a NC |
5324 | DIE(aTHX_ "panic: unimplemented op %s (#%d) called", OP_NAME(PL_op), |
| 5325 | PL_op->op_type); | |
| 5326 | } | |
| 5327 | ||
| e609e586 NC |
5328 | /* |
| 5329 | * Local variables: | |
| 5330 | * c-indentation-style: bsd | |
| 5331 | * c-basic-offset: 4 | |
| 5332 | * indent-tabs-mode: t | |
| 5333 | * End: | |
| 5334 | * | |
| 37442d52 RGS |
5335 | * ex: set ts=8 sts=4 sw=4 noet: |
| 5336 | */ |