https://perl5.git.perl.org / perl5.git / blame
| 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; |
| e190e9b4 | 66 | assert(SvTYPE(TARG) == SVt_PVAV); |
| 533c011a | 67 | if (PL_op->op_private & OPpLVAL_INTRO) |
| a5911867 RGS |
68 | if (!(PL_op->op_private & OPpPAD_STATE)) |
| 69 | SAVECLEARSV(PAD_SVl(PL_op->op_targ)); | |
| 85e6fe83 | 70 | EXTEND(SP, 1); |
| 533c011a | 71 | if (PL_op->op_flags & OPf_REF) { |
| 85e6fe83 | 72 | PUSHs(TARG); |
| 93a17b20 | 73 | RETURN; |
| 78f9721b SM |
74 | } else if (LVRET) { |
| 75 | if (GIMME == G_SCALAR) | |
| 76 | Perl_croak(aTHX_ "Can't return array to lvalue scalar context"); | |
| 77 | PUSHs(TARG); | |
| 78 | RETURN; | |
| 85e6fe83 | 79 | } |
| 13017935 SM |
80 | gimme = GIMME_V; |
| 81 | if (gimme == G_ARRAY) { | |
| 502c6561 | 82 | const I32 maxarg = AvFILL(MUTABLE_AV(TARG)) + 1; |
| 85e6fe83 | 83 | EXTEND(SP, maxarg); |
| 93965878 NIS |
84 | if (SvMAGICAL(TARG)) { |
| 85 | U32 i; | |
| eb160463 | 86 | for (i=0; i < (U32)maxarg; i++) { |
| 502c6561 | 87 | SV * const * const svp = av_fetch(MUTABLE_AV(TARG), i, FALSE); |
| 3280af22 | 88 | SP[i+1] = (svp) ? *svp : &PL_sv_undef; |
| 93965878 NIS |
89 | } |
| 90 | } | |
| 91 | else { | |
| 502c6561 | 92 | Copy(AvARRAY((const AV *)TARG), SP+1, maxarg, SV*); |
| 93965878 | 93 | } |
| 85e6fe83 LW |
94 | SP += maxarg; |
| 95 | } | |
| 13017935 | 96 | else if (gimme == G_SCALAR) { |
| 1b6737cc | 97 | SV* const sv = sv_newmortal(); |
| 502c6561 | 98 | const I32 maxarg = AvFILL(MUTABLE_AV(TARG)) + 1; |
| 85e6fe83 LW |
99 | sv_setiv(sv, maxarg); |
| 100 | PUSHs(sv); | |
| 101 | } | |
| 102 | RETURN; | |
| 93a17b20 LW |
103 | } |
| 104 | ||
| 105 | PP(pp_padhv) | |
| 106 | { | |
| 97aff369 | 107 | dVAR; dSP; dTARGET; |
| 54310121 | 108 | I32 gimme; |
| 109 | ||
| e190e9b4 | 110 | assert(SvTYPE(TARG) == SVt_PVHV); |
| 93a17b20 | 111 | XPUSHs(TARG); |
| 533c011a | 112 | if (PL_op->op_private & OPpLVAL_INTRO) |
| a5911867 RGS |
113 | if (!(PL_op->op_private & OPpPAD_STATE)) |
| 114 | SAVECLEARSV(PAD_SVl(PL_op->op_targ)); | |
| 533c011a | 115 | if (PL_op->op_flags & OPf_REF) |
| 93a17b20 | 116 | RETURN; |
| 78f9721b SM |
117 | else if (LVRET) { |
| 118 | if (GIMME == G_SCALAR) | |
| 119 | Perl_croak(aTHX_ "Can't return hash to lvalue scalar context"); | |
| 120 | RETURN; | |
| 121 | } | |
| 54310121 | 122 | gimme = GIMME_V; |
| 123 | if (gimme == G_ARRAY) { | |
| cea2e8a9 | 124 | RETURNOP(do_kv()); |
| 85e6fe83 | 125 | } |
| 54310121 | 126 | else if (gimme == G_SCALAR) { |
| 85fbaab2 | 127 | SV* const sv = Perl_hv_scalar(aTHX_ MUTABLE_HV(TARG)); |
| 85e6fe83 | 128 | SETs(sv); |
| 85e6fe83 | 129 | } |
| 54310121 | 130 | RETURN; |
| 93a17b20 LW |
131 | } |
| 132 | ||
| 79072805 LW |
133 | /* Translations. */ |
| 134 | ||
| def89bff NC |
135 | const char S_no_symref_sv[] = |
| 136 | "Can't use string (\"%" SVf32 "\"%s) as %s ref while \"strict refs\" in use"; | |
| 137 | ||
| 79072805 LW |
138 | PP(pp_rv2gv) |
| 139 | { | |
| 97aff369 | 140 | dVAR; dSP; dTOPss; |
| 8ec5e241 | 141 | |
| ed6116ce | 142 | if (SvROK(sv)) { |
| a0d0e21e | 143 | wasref: |
| f5284f61 IZ |
144 | tryAMAGICunDEREF(to_gv); |
| 145 | ||
| ed6116ce | 146 | sv = SvRV(sv); |
| b1dadf13 | 147 | if (SvTYPE(sv) == SVt_PVIO) { |
| 159b6efe | 148 | GV * const gv = MUTABLE_GV(sv_newmortal()); |
| b1dadf13 | 149 | gv_init(gv, 0, "", 0, 0); |
| a45c7426 | 150 | GvIOp(gv) = MUTABLE_IO(sv); |
| b37c2d43 | 151 | SvREFCNT_inc_void_NN(sv); |
| ad64d0ec | 152 | sv = MUTABLE_SV(gv); |
| ef54e1a4 | 153 | } |
| 6e592b3a | 154 | else if (!isGV_with_GP(sv)) |
| cea2e8a9 | 155 | DIE(aTHX_ "Not a GLOB reference"); |
| 79072805 LW |
156 | } |
| 157 | else { | |
| 6e592b3a | 158 | if (!isGV_with_GP(sv)) { |
| a0d0e21e LW |
159 | if (SvGMAGICAL(sv)) { |
| 160 | mg_get(sv); | |
| 161 | if (SvROK(sv)) | |
| 162 | goto wasref; | |
| 163 | } | |
| afd1915d | 164 | if (!SvOK(sv) && sv != &PL_sv_undef) { |
| b13b2135 | 165 | /* If this is a 'my' scalar and flag is set then vivify |
| 853846ea | 166 | * NI-S 1999/05/07 |
| b13b2135 | 167 | */ |
| ac53db4c | 168 | if (SvREADONLY(sv)) |
| f1f66076 | 169 | Perl_croak(aTHX_ "%s", PL_no_modify); |
| 1d8d4d2a | 170 | if (PL_op->op_private & OPpDEREF) { |
| 2c8ac474 GS |
171 | GV *gv; |
| 172 | if (cUNOP->op_targ) { | |
| 173 | STRLEN len; | |
| 0bd48802 AL |
174 | SV * const namesv = PAD_SV(cUNOP->op_targ); |
| 175 | const char * const name = SvPV(namesv, len); | |
| 159b6efe | 176 | gv = MUTABLE_GV(newSV(0)); |
| 2c8ac474 GS |
177 | gv_init(gv, CopSTASH(PL_curcop), name, len, 0); |
| 178 | } | |
| 179 | else { | |
| 0bd48802 | 180 | const char * const name = CopSTASHPV(PL_curcop); |
| 2c8ac474 | 181 | gv = newGVgen(name); |
| 1d8d4d2a | 182 | } |
| 43230e26 | 183 | prepare_SV_for_RV(sv); |
| ad64d0ec | 184 | SvRV_set(sv, MUTABLE_SV(gv)); |
| 853846ea | 185 | SvROK_on(sv); |
| 1d8d4d2a | 186 | SvSETMAGIC(sv); |
| 853846ea | 187 | goto wasref; |
| 2c8ac474 | 188 | } |
| 533c011a NIS |
189 | if (PL_op->op_flags & OPf_REF || |
| 190 | PL_op->op_private & HINT_STRICT_REFS) | |
| cea2e8a9 | 191 | DIE(aTHX_ PL_no_usym, "a symbol"); |
| 599cee73 | 192 | if (ckWARN(WARN_UNINITIALIZED)) |
| 29489e7c | 193 | report_uninit(sv); |
| a0d0e21e LW |
194 | RETSETUNDEF; |
| 195 | } | |
| 35cd451c GS |
196 | if ((PL_op->op_flags & OPf_SPECIAL) && |
| 197 | !(PL_op->op_flags & OPf_MOD)) | |
| 198 | { | |
| ad64d0ec | 199 | SV * const temp = MUTABLE_SV(gv_fetchsv(sv, 0, SVt_PVGV)); |
| 7a5fd60d NC |
200 | if (!temp |
| 201 | && (!is_gv_magical_sv(sv,0) | |
| ad64d0ec NC |
202 | || !(sv = MUTABLE_SV(gv_fetchsv(sv, GV_ADD, |
| 203 | SVt_PVGV))))) { | |
| 35cd451c | 204 | RETSETUNDEF; |
| c9d5ac95 | 205 | } |
| 7a5fd60d | 206 | sv = temp; |
| 35cd451c GS |
207 | } |
| 208 | else { | |
| 209 | if (PL_op->op_private & HINT_STRICT_REFS) | |
| def89bff | 210 | DIE(aTHX_ S_no_symref_sv, sv, (SvCUR(sv)>32 ? "..." : ""), "a symbol"); |
| e26df76a NC |
211 | if ((PL_op->op_private & (OPpLVAL_INTRO|OPpDONT_INIT_GV)) |
| 212 | == OPpDONT_INIT_GV) { | |
| 213 | /* We are the target of a coderef assignment. Return | |
| 214 | the scalar unchanged, and let pp_sasssign deal with | |
| 215 | things. */ | |
| 216 | RETURN; | |
| 217 | } | |
| ad64d0ec | 218 | sv = MUTABLE_SV(gv_fetchsv(sv, GV_ADD, SVt_PVGV)); |
| 35cd451c | 219 | } |
| 93a17b20 | 220 | } |
| 79072805 | 221 | } |
| 533c011a | 222 | if (PL_op->op_private & OPpLVAL_INTRO) |
| 159b6efe | 223 | save_gp(MUTABLE_GV(sv), !(PL_op->op_flags & OPf_SPECIAL)); |
| 79072805 LW |
224 | SETs(sv); |
| 225 | RETURN; | |
| 226 | } | |
| 227 | ||
| dc3c76f8 NC |
228 | /* Helper function for pp_rv2sv and pp_rv2av */ |
| 229 | GV * | |
| fe9845cc RB |
230 | Perl_softref2xv(pTHX_ SV *const sv, const char *const what, |
| 231 | const svtype type, SV ***spp) | |
| dc3c76f8 NC |
232 | { |
| 233 | dVAR; | |
| 234 | GV *gv; | |
| 235 | ||
| 7918f24d NC |
236 | PERL_ARGS_ASSERT_SOFTREF2XV; |
| 237 | ||
| dc3c76f8 NC |
238 | if (PL_op->op_private & HINT_STRICT_REFS) { |
| 239 | if (SvOK(sv)) | |
| def89bff | 240 | Perl_die(aTHX_ S_no_symref_sv, sv, (SvCUR(sv)>32 ? "..." : ""), what); |
| dc3c76f8 NC |
241 | else |
| 242 | Perl_die(aTHX_ PL_no_usym, what); | |
| 243 | } | |
| 244 | if (!SvOK(sv)) { | |
| 245 | if (PL_op->op_flags & OPf_REF) | |
| 246 | Perl_die(aTHX_ PL_no_usym, what); | |
| 247 | if (ckWARN(WARN_UNINITIALIZED)) | |
| 248 | report_uninit(sv); | |
| 249 | if (type != SVt_PV && GIMME_V == G_ARRAY) { | |
| 250 | (*spp)--; | |
| 251 | return NULL; | |
| 252 | } | |
| 253 | **spp = &PL_sv_undef; | |
| 254 | return NULL; | |
| 255 | } | |
| 256 | if ((PL_op->op_flags & OPf_SPECIAL) && | |
| 257 | !(PL_op->op_flags & OPf_MOD)) | |
| 258 | { | |
| 81e3fc25 | 259 | gv = gv_fetchsv(sv, 0, type); |
| dc3c76f8 NC |
260 | if (!gv |
| 261 | && (!is_gv_magical_sv(sv,0) | |
| 81e3fc25 | 262 | || !(gv = gv_fetchsv(sv, GV_ADD, type)))) |
| dc3c76f8 NC |
263 | { |
| 264 | **spp = &PL_sv_undef; | |
| 265 | return NULL; | |
| 266 | } | |
| 267 | } | |
| 268 | else { | |
| 81e3fc25 | 269 | gv = gv_fetchsv(sv, GV_ADD, type); |
| dc3c76f8 NC |
270 | } |
| 271 | return gv; | |
| 272 | } | |
| 273 | ||
| 79072805 LW |
274 | PP(pp_rv2sv) |
| 275 | { | |
| 97aff369 | 276 | dVAR; dSP; dTOPss; |
| c445ea15 | 277 | GV *gv = NULL; |
| 79072805 | 278 | |
| ed6116ce | 279 | if (SvROK(sv)) { |
| a0d0e21e | 280 | wasref: |
| f5284f61 IZ |
281 | tryAMAGICunDEREF(to_sv); |
| 282 | ||
| ed6116ce | 283 | sv = SvRV(sv); |
| 79072805 LW |
284 | switch (SvTYPE(sv)) { |
| 285 | case SVt_PVAV: | |
| 286 | case SVt_PVHV: | |
| 287 | case SVt_PVCV: | |
| cbae9b9f YST |
288 | case SVt_PVFM: |
| 289 | case SVt_PVIO: | |
| cea2e8a9 | 290 | DIE(aTHX_ "Not a SCALAR reference"); |
| 42d0e0b7 | 291 | default: NOOP; |
| 79072805 LW |
292 | } |
| 293 | } | |
| 294 | else { | |
| 159b6efe | 295 | gv = MUTABLE_GV(sv); |
| 748a9306 | 296 | |
| 6e592b3a | 297 | if (!isGV_with_GP(gv)) { |
| a0d0e21e LW |
298 | if (SvGMAGICAL(sv)) { |
| 299 | mg_get(sv); | |
| 300 | if (SvROK(sv)) | |
| 301 | goto wasref; | |
| 302 | } | |
| dc3c76f8 NC |
303 | gv = Perl_softref2xv(aTHX_ sv, "a SCALAR", SVt_PV, &sp); |
| 304 | if (!gv) | |
| 305 | RETURN; | |
| 463ee0b2 | 306 | } |
| 29c711a3 | 307 | sv = GvSVn(gv); |
| a0d0e21e | 308 | } |
| 533c011a | 309 | if (PL_op->op_flags & OPf_MOD) { |
| 82d03984 RGS |
310 | if (PL_op->op_private & OPpLVAL_INTRO) { |
| 311 | if (cUNOP->op_first->op_type == OP_NULL) | |
| 159b6efe | 312 | sv = save_scalar(MUTABLE_GV(TOPs)); |
| 82d03984 RGS |
313 | else if (gv) |
| 314 | sv = save_scalar(gv); | |
| 315 | else | |
| f1f66076 | 316 | Perl_croak(aTHX_ "%s", PL_no_localize_ref); |
| 82d03984 | 317 | } |
| 533c011a NIS |
318 | else if (PL_op->op_private & OPpDEREF) |
| 319 | vivify_ref(sv, PL_op->op_private & OPpDEREF); | |
| 79072805 | 320 | } |
| a0d0e21e | 321 | SETs(sv); |
| 79072805 LW |
322 | RETURN; |
| 323 | } | |
| 324 | ||
| 325 | PP(pp_av2arylen) | |
| 326 | { | |
| 97aff369 | 327 | dVAR; dSP; |
| 502c6561 | 328 | AV * const av = MUTABLE_AV(TOPs); |
| 02d85cc3 EB |
329 | const I32 lvalue = PL_op->op_flags & OPf_MOD || LVRET; |
| 330 | if (lvalue) { | |
| 331 | SV ** const sv = Perl_av_arylen_p(aTHX_ MUTABLE_AV(av)); | |
| 332 | if (!*sv) { | |
| 333 | *sv = newSV_type(SVt_PVMG); | |
| 334 | sv_magic(*sv, MUTABLE_SV(av), PERL_MAGIC_arylen, NULL, 0); | |
| 335 | } | |
| 336 | SETs(*sv); | |
| 337 | } else { | |
| 338 | SETs(sv_2mortal(newSViv( | |
| 339 | AvFILL(MUTABLE_AV(av)) + CopARYBASE_get(PL_curcop) | |
| 340 | ))); | |
| 79072805 | 341 | } |
| 79072805 LW |
342 | RETURN; |
| 343 | } | |
| 344 | ||
| a0d0e21e LW |
345 | PP(pp_pos) |
| 346 | { | |
| 97aff369 | 347 | dVAR; dSP; dTARGET; dPOPss; |
| 8ec5e241 | 348 | |
| 78f9721b | 349 | if (PL_op->op_flags & OPf_MOD || LVRET) { |
| 5f05dabc | 350 | if (SvTYPE(TARG) < SVt_PVLV) { |
| 351 | sv_upgrade(TARG, SVt_PVLV); | |
| c445ea15 | 352 | sv_magic(TARG, NULL, PERL_MAGIC_pos, NULL, 0); |
| 5f05dabc | 353 | } |
| 354 | ||
| 355 | LvTYPE(TARG) = '.'; | |
| 6ff81951 | 356 | if (LvTARG(TARG) != sv) { |
| cb39f75f | 357 | SvREFCNT_dec(LvTARG(TARG)); |
| b37c2d43 | 358 | LvTARG(TARG) = SvREFCNT_inc_simple(sv); |
| 6ff81951 | 359 | } |
| a0d0e21e LW |
360 | PUSHs(TARG); /* no SvSETMAGIC */ |
| 361 | RETURN; | |
| 362 | } | |
| 363 | else { | |
| a0d0e21e | 364 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) { |
| 1b6737cc | 365 | const MAGIC * const mg = mg_find(sv, PERL_MAGIC_regex_global); |
| 565764a8 | 366 | if (mg && mg->mg_len >= 0) { |
| a0ed51b3 | 367 | I32 i = mg->mg_len; |
| 7e2040f0 | 368 | if (DO_UTF8(sv)) |
| a0ed51b3 | 369 | sv_pos_b2u(sv, &i); |
| fc15ae8f | 370 | PUSHi(i + CopARYBASE_get(PL_curcop)); |
| a0d0e21e LW |
371 | RETURN; |
| 372 | } | |
| 373 | } | |
| 374 | RETPUSHUNDEF; | |
| 375 | } | |
| 376 | } | |
| 377 | ||
| 79072805 LW |
378 | PP(pp_rv2cv) |
| 379 | { | |
| 97aff369 | 380 | dVAR; dSP; |
| 79072805 | 381 | GV *gv; |
| 1eced8f8 | 382 | HV *stash_unused; |
| c445ea15 AL |
383 | const I32 flags = (PL_op->op_flags & OPf_SPECIAL) |
| 384 | ? 0 | |
| 385 | : ((PL_op->op_private & (OPpLVAL_INTRO|OPpMAY_RETURN_CONSTANT)) == OPpMAY_RETURN_CONSTANT) | |
| 386 | ? GV_ADD|GV_NOEXPAND | |
| 387 | : GV_ADD; | |
| 4633a7c4 LW |
388 | /* We usually try to add a non-existent subroutine in case of AUTOLOAD. */ |
| 389 | /* (But not in defined().) */ | |
| e26df76a | 390 | |
| 1eced8f8 | 391 | CV *cv = sv_2cv(TOPs, &stash_unused, &gv, flags); |
| 07055b4c CS |
392 | if (cv) { |
| 393 | if (CvCLONE(cv)) | |
| ad64d0ec | 394 | cv = MUTABLE_CV(sv_2mortal(MUTABLE_SV(cv_clone(cv)))); |
| d32f2495 SC |
395 | if ((PL_op->op_private & OPpLVAL_INTRO)) { |
| 396 | if (gv && GvCV(gv) == cv && (gv = gv_autoload4(GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv), FALSE))) | |
| 397 | cv = GvCV(gv); | |
| 398 | if (!CvLVALUE(cv)) | |
| 399 | DIE(aTHX_ "Can't modify non-lvalue subroutine call"); | |
| 400 | } | |
| 07055b4c | 401 | } |
| e26df76a | 402 | else if ((flags == (GV_ADD|GV_NOEXPAND)) && gv && SvROK(gv)) { |
| ea726b52 | 403 | cv = MUTABLE_CV(gv); |
| e26df76a | 404 | } |
| 07055b4c | 405 | else |
| ea726b52 | 406 | cv = MUTABLE_CV(&PL_sv_undef); |
| ad64d0ec | 407 | SETs(MUTABLE_SV(cv)); |
| 79072805 LW |
408 | RETURN; |
| 409 | } | |
| 410 | ||
| c07a80fd | 411 | PP(pp_prototype) |
| 412 | { | |
| 97aff369 | 413 | dVAR; dSP; |
| c07a80fd | 414 | CV *cv; |
| 415 | HV *stash; | |
| 416 | GV *gv; | |
| fabdb6c0 | 417 | SV *ret = &PL_sv_undef; |
| c07a80fd | 418 | |
| b6c543e3 | 419 | if (SvPOK(TOPs) && SvCUR(TOPs) >= 7) { |
| e3f73d4e | 420 | const char * s = SvPVX_const(TOPs); |
| b6c543e3 | 421 | if (strnEQ(s, "CORE::", 6)) { |
| 5458a98a | 422 | const int code = keyword(s + 6, SvCUR(TOPs) - 6, 1); |
| b6c543e3 IZ |
423 | if (code < 0) { /* Overridable. */ |
| 424 | #define MAX_ARGS_OP ((sizeof(I32) - 1) * 2) | |
| 59b085e1 | 425 | int i = 0, n = 0, seen_question = 0, defgv = 0; |
| b6c543e3 IZ |
426 | I32 oa; |
| 427 | char str[ MAX_ARGS_OP * 2 + 2 ]; /* One ';', one '\0' */ | |
| 428 | ||
| bdf1bb36 | 429 | if (code == -KEY_chop || code == -KEY_chomp |
| f23102e2 | 430 | || code == -KEY_exec || code == -KEY_system) |
| 77bc9082 | 431 | goto set; |
| d116c547 | 432 | if (code == -KEY_mkdir) { |
| 84bafc02 | 433 | ret = newSVpvs_flags("_;$", SVs_TEMP); |
| d116c547 RGS |
434 | goto set; |
| 435 | } | |
| 7c8178a1 RGS |
436 | if (code == -KEY_keys || code == -KEY_values || code == -KEY_each) { |
| 437 | ret = newSVpvs_flags("\\[@%]", SVs_TEMP); | |
| 438 | goto set; | |
| 439 | } | |
| e3f73d4e RGS |
440 | if (code == -KEY_readpipe) { |
| 441 | s = "CORE::backtick"; | |
| 442 | } | |
| b6c543e3 | 443 | while (i < MAXO) { /* The slow way. */ |
| 22c35a8c GS |
444 | if (strEQ(s + 6, PL_op_name[i]) |
| 445 | || strEQ(s + 6, PL_op_desc[i])) | |
| 446 | { | |
| b6c543e3 | 447 | goto found; |
| 22c35a8c | 448 | } |
| b6c543e3 IZ |
449 | i++; |
| 450 | } | |
| 451 | goto nonesuch; /* Should not happen... */ | |
| 452 | found: | |
| 59b085e1 | 453 | defgv = PL_opargs[i] & OA_DEFGV; |
| 22c35a8c | 454 | oa = PL_opargs[i] >> OASHIFT; |
| b6c543e3 | 455 | while (oa) { |
| 59b085e1 | 456 | if (oa & OA_OPTIONAL && !seen_question && !defgv) { |
| b6c543e3 IZ |
457 | seen_question = 1; |
| 458 | str[n++] = ';'; | |
| ef54e1a4 | 459 | } |
| b13b2135 | 460 | if ((oa & (OA_OPTIONAL - 1)) >= OA_AVREF |
| 6e97e420 SC |
461 | && (oa & (OA_OPTIONAL - 1)) <= OA_SCALARREF |
| 462 | /* But globs are already references (kinda) */ | |
| 463 | && (oa & (OA_OPTIONAL - 1)) != OA_FILEREF | |
| 464 | ) { | |
| b6c543e3 IZ |
465 | str[n++] = '\\'; |
| 466 | } | |
| b6c543e3 IZ |
467 | str[n++] = ("?$@@%&*$")[oa & (OA_OPTIONAL - 1)]; |
| 468 | oa = oa >> 4; | |
| 469 | } | |
| 59b085e1 RGS |
470 | if (defgv && str[n - 1] == '$') |
| 471 | str[n - 1] = '_'; | |
| b6c543e3 | 472 | str[n++] = '\0'; |
| 59cd0e26 | 473 | ret = newSVpvn_flags(str, n - 1, SVs_TEMP); |
| ef54e1a4 JH |
474 | } |
| 475 | else if (code) /* Non-Overridable */ | |
| b6c543e3 IZ |
476 | goto set; |
| 477 | else { /* None such */ | |
| 478 | nonesuch: | |
| d470f89e | 479 | DIE(aTHX_ "Can't find an opnumber for \"%s\"", s+6); |
| b6c543e3 IZ |
480 | } |
| 481 | } | |
| 482 | } | |
| f2c0649b | 483 | cv = sv_2cv(TOPs, &stash, &gv, 0); |
| 5f05dabc | 484 | if (cv && SvPOK(cv)) |
| 59cd0e26 | 485 | ret = newSVpvn_flags(SvPVX_const(cv), SvCUR(cv), SVs_TEMP); |
| b6c543e3 | 486 | set: |
| c07a80fd | 487 | SETs(ret); |
| 488 | RETURN; | |
| 489 | } | |
| 490 | ||
| a0d0e21e LW |
491 | PP(pp_anoncode) |
| 492 | { | |
| 97aff369 | 493 | dVAR; dSP; |
| ea726b52 | 494 | CV *cv = MUTABLE_CV(PAD_SV(PL_op->op_targ)); |
| a5f75d66 | 495 | if (CvCLONE(cv)) |
| ad64d0ec | 496 | cv = MUTABLE_CV(sv_2mortal(MUTABLE_SV(cv_clone(cv)))); |
| 5f05dabc | 497 | EXTEND(SP,1); |
| ad64d0ec | 498 | PUSHs(MUTABLE_SV(cv)); |
| a0d0e21e LW |
499 | RETURN; |
| 500 | } | |
| 501 | ||
| 502 | PP(pp_srefgen) | |
| 79072805 | 503 | { |
| 97aff369 | 504 | dVAR; dSP; |
| 71be2cbc | 505 | *SP = refto(*SP); |
| 79072805 | 506 | RETURN; |
| 8ec5e241 | 507 | } |
| a0d0e21e LW |
508 | |
| 509 | PP(pp_refgen) | |
| 510 | { | |
| 97aff369 | 511 | dVAR; dSP; dMARK; |
| a0d0e21e | 512 | if (GIMME != G_ARRAY) { |
| 5f0b1d4e GS |
513 | if (++MARK <= SP) |
| 514 | *MARK = *SP; | |
| 515 | else | |
| 3280af22 | 516 | *MARK = &PL_sv_undef; |
| 5f0b1d4e GS |
517 | *MARK = refto(*MARK); |
| 518 | SP = MARK; | |
| 519 | RETURN; | |
| a0d0e21e | 520 | } |
| bbce6d69 | 521 | EXTEND_MORTAL(SP - MARK); |
| 71be2cbc | 522 | while (++MARK <= SP) |
| 523 | *MARK = refto(*MARK); | |
| a0d0e21e | 524 | RETURN; |
| 79072805 LW |
525 | } |
| 526 | ||
| 76e3520e | 527 | STATIC SV* |
| cea2e8a9 | 528 | S_refto(pTHX_ SV *sv) |
| 71be2cbc | 529 | { |
| 97aff369 | 530 | dVAR; |
| 71be2cbc | 531 | SV* rv; |
| 532 | ||
| 7918f24d NC |
533 | PERL_ARGS_ASSERT_REFTO; |
| 534 | ||
| 71be2cbc | 535 | if (SvTYPE(sv) == SVt_PVLV && LvTYPE(sv) == 'y') { |
| 536 | if (LvTARGLEN(sv)) | |
| 68dc0745 | 537 | vivify_defelem(sv); |
| 538 | if (!(sv = LvTARG(sv))) | |
| 3280af22 | 539 | sv = &PL_sv_undef; |
| 0dd88869 | 540 | else |
| b37c2d43 | 541 | SvREFCNT_inc_void_NN(sv); |
| 71be2cbc | 542 | } |
| d8b46c1b | 543 | else if (SvTYPE(sv) == SVt_PVAV) { |
| 502c6561 NC |
544 | if (!AvREAL((const AV *)sv) && AvREIFY((const AV *)sv)) |
| 545 | av_reify(MUTABLE_AV(sv)); | |
| d8b46c1b | 546 | SvTEMP_off(sv); |
| b37c2d43 | 547 | SvREFCNT_inc_void_NN(sv); |
| d8b46c1b | 548 | } |
| f2933f5f DM |
549 | else if (SvPADTMP(sv) && !IS_PADGV(sv)) |
| 550 | sv = newSVsv(sv); | |
| 71be2cbc | 551 | else { |
| 552 | SvTEMP_off(sv); | |
| b37c2d43 | 553 | SvREFCNT_inc_void_NN(sv); |
| 71be2cbc | 554 | } |
| 555 | rv = sv_newmortal(); | |
| 4df7f6af | 556 | sv_upgrade(rv, SVt_IV); |
| b162af07 | 557 | SvRV_set(rv, sv); |
| 71be2cbc | 558 | SvROK_on(rv); |
| 559 | return rv; | |
| 560 | } | |
| 561 | ||
| 79072805 LW |
562 | PP(pp_ref) |
| 563 | { | |
| 97aff369 | 564 | dVAR; dSP; dTARGET; |
| e1ec3a88 | 565 | const char *pv; |
| 1b6737cc | 566 | SV * const sv = POPs; |
| f12c7020 | 567 | |
| 5b295bef RD |
568 | if (sv) |
| 569 | SvGETMAGIC(sv); | |
| f12c7020 | 570 | |
| a0d0e21e | 571 | if (!sv || !SvROK(sv)) |
| 4633a7c4 | 572 | RETPUSHNO; |
| 79072805 | 573 | |
| 1b6737cc | 574 | pv = sv_reftype(SvRV(sv),TRUE); |
| 463ee0b2 | 575 | PUSHp(pv, strlen(pv)); |
| 79072805 LW |
576 | RETURN; |
| 577 | } | |
| 578 | ||
| 579 | PP(pp_bless) | |
| 580 | { | |
| 97aff369 | 581 | dVAR; dSP; |
| 463ee0b2 | 582 | HV *stash; |
| 79072805 | 583 | |
| 463ee0b2 | 584 | if (MAXARG == 1) |
| 11faa288 | 585 | stash = CopSTASH(PL_curcop); |
| 7b8d334a | 586 | else { |
| 1b6737cc | 587 | SV * const ssv = POPs; |
| 7b8d334a | 588 | STRLEN len; |
| e1ec3a88 | 589 | const char *ptr; |
| 81689caa | 590 | |
| 016a42f3 | 591 | if (ssv && !SvGMAGICAL(ssv) && !SvAMAGIC(ssv) && SvROK(ssv)) |
| 81689caa | 592 | Perl_croak(aTHX_ "Attempt to bless into a reference"); |
| 5c144d81 | 593 | ptr = SvPV_const(ssv,len); |
| a2a5de95 NC |
594 | if (len == 0) |
| 595 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), | |
| 596 | "Explicit blessing to '' (assuming package main)"); | |
| da51bb9b | 597 | stash = gv_stashpvn(ptr, len, GV_ADD); |
| 7b8d334a | 598 | } |
| a0d0e21e | 599 | |
| 5d3fdfeb | 600 | (void)sv_bless(TOPs, stash); |
| 79072805 LW |
601 | RETURN; |
| 602 | } | |
| 603 | ||
| fb73857a | 604 | PP(pp_gelem) |
| 605 | { | |
| 97aff369 | 606 | dVAR; dSP; |
| b13b2135 | 607 | |
| 1b6737cc AL |
608 | SV *sv = POPs; |
| 609 | const char * const elem = SvPV_nolen_const(sv); | |
| 159b6efe | 610 | GV * const gv = MUTABLE_GV(POPs); |
| c445ea15 | 611 | SV * tmpRef = NULL; |
| 1b6737cc | 612 | |
| c445ea15 | 613 | sv = NULL; |
| c4ba80c3 NC |
614 | if (elem) { |
| 615 | /* elem will always be NUL terminated. */ | |
| 1b6737cc | 616 | const char * const second_letter = elem + 1; |
| c4ba80c3 NC |
617 | switch (*elem) { |
| 618 | case 'A': | |
| 1b6737cc | 619 | if (strEQ(second_letter, "RRAY")) |
| ad64d0ec | 620 | tmpRef = MUTABLE_SV(GvAV(gv)); |
| c4ba80c3 NC |
621 | break; |
| 622 | case 'C': | |
| 1b6737cc | 623 | if (strEQ(second_letter, "ODE")) |
| ad64d0ec | 624 | tmpRef = MUTABLE_SV(GvCVu(gv)); |
| c4ba80c3 NC |
625 | break; |
| 626 | case 'F': | |
| 1b6737cc | 627 | if (strEQ(second_letter, "ILEHANDLE")) { |
| c4ba80c3 NC |
628 | /* finally deprecated in 5.8.0 */ |
| 629 | deprecate("*glob{FILEHANDLE}"); | |
| ad64d0ec | 630 | tmpRef = MUTABLE_SV(GvIOp(gv)); |
| c4ba80c3 NC |
631 | } |
| 632 | else | |
| 1b6737cc | 633 | if (strEQ(second_letter, "ORMAT")) |
| ad64d0ec | 634 | tmpRef = MUTABLE_SV(GvFORM(gv)); |
| c4ba80c3 NC |
635 | break; |
| 636 | case 'G': | |
| 1b6737cc | 637 | if (strEQ(second_letter, "LOB")) |
| ad64d0ec | 638 | tmpRef = MUTABLE_SV(gv); |
| c4ba80c3 NC |
639 | break; |
| 640 | case 'H': | |
| 1b6737cc | 641 | if (strEQ(second_letter, "ASH")) |
| ad64d0ec | 642 | tmpRef = MUTABLE_SV(GvHV(gv)); |
| c4ba80c3 NC |
643 | break; |
| 644 | case 'I': | |
| 1b6737cc | 645 | if (*second_letter == 'O' && !elem[2]) |
| ad64d0ec | 646 | tmpRef = MUTABLE_SV(GvIOp(gv)); |
| c4ba80c3 NC |
647 | break; |
| 648 | case 'N': | |
| 1b6737cc | 649 | if (strEQ(second_letter, "AME")) |
| a663657d | 650 | sv = newSVhek(GvNAME_HEK(gv)); |
| c4ba80c3 NC |
651 | break; |
| 652 | case 'P': | |
| 1b6737cc | 653 | if (strEQ(second_letter, "ACKAGE")) { |
| 7fa3a4ab NC |
654 | const HV * const stash = GvSTASH(gv); |
| 655 | const HEK * const hek = stash ? HvNAME_HEK(stash) : NULL; | |
| 396482e1 | 656 | sv = hek ? newSVhek(hek) : newSVpvs("__ANON__"); |
| c4ba80c3 NC |
657 | } |
| 658 | break; | |
| 659 | case 'S': | |
| 1b6737cc | 660 | if (strEQ(second_letter, "CALAR")) |
| f9d52e31 | 661 | tmpRef = GvSVn(gv); |
| c4ba80c3 | 662 | break; |
| 39b99f21 | 663 | } |
| fb73857a | 664 | } |
| 76e3520e GS |
665 | if (tmpRef) |
| 666 | sv = newRV(tmpRef); | |
| fb73857a | 667 | if (sv) |
| 668 | sv_2mortal(sv); | |
| 669 | else | |
| 3280af22 | 670 | sv = &PL_sv_undef; |
| fb73857a | 671 | XPUSHs(sv); |
| 672 | RETURN; | |
| 673 | } | |
| 674 | ||
| a0d0e21e | 675 | /* Pattern matching */ |
| 79072805 | 676 | |
| a0d0e21e | 677 | PP(pp_study) |
| 79072805 | 678 | { |
| 97aff369 | 679 | dVAR; dSP; dPOPss; |
| a0d0e21e LW |
680 | register unsigned char *s; |
| 681 | register I32 pos; | |
| 682 | register I32 ch; | |
| 683 | register I32 *sfirst; | |
| 684 | register I32 *snext; | |
| a0d0e21e LW |
685 | STRLEN len; |
| 686 | ||
| 3280af22 | 687 | if (sv == PL_lastscream) { |
| 1e422769 | 688 | if (SvSCREAM(sv)) |
| 689 | RETPUSHYES; | |
| 690 | } | |
| a4f4e906 NC |
691 | s = (unsigned char*)(SvPV(sv, len)); |
| 692 | pos = len; | |
| c9b9f909 | 693 | if (pos <= 0 || !SvPOK(sv) || SvUTF8(sv)) { |
| a4f4e906 NC |
694 | /* No point in studying a zero length string, and not safe to study |
| 695 | anything that doesn't appear to be a simple scalar (and hence might | |
| 696 | change between now and when the regexp engine runs without our set | |
| bd473224 | 697 | magic ever running) such as a reference to an object with overloaded |
| a4f4e906 NC |
698 | stringification. */ |
| 699 | RETPUSHNO; | |
| 700 | } | |
| 701 | ||
| 702 | if (PL_lastscream) { | |
| 703 | SvSCREAM_off(PL_lastscream); | |
| 704 | SvREFCNT_dec(PL_lastscream); | |
| c07a80fd | 705 | } |
| b37c2d43 | 706 | PL_lastscream = SvREFCNT_inc_simple(sv); |
| 1e422769 | 707 | |
| 708 | s = (unsigned char*)(SvPV(sv, len)); | |
| 709 | pos = len; | |
| 710 | if (pos <= 0) | |
| 711 | RETPUSHNO; | |
| 3280af22 NIS |
712 | if (pos > PL_maxscream) { |
| 713 | if (PL_maxscream < 0) { | |
| 714 | PL_maxscream = pos + 80; | |
| a02a5408 JC |
715 | Newx(PL_screamfirst, 256, I32); |
| 716 | Newx(PL_screamnext, PL_maxscream, I32); | |
| 79072805 LW |
717 | } |
| 718 | else { | |
| 3280af22 NIS |
719 | PL_maxscream = pos + pos / 4; |
| 720 | Renew(PL_screamnext, PL_maxscream, I32); | |
| 79072805 | 721 | } |
| 79072805 | 722 | } |
| a0d0e21e | 723 | |
| 3280af22 NIS |
724 | sfirst = PL_screamfirst; |
| 725 | snext = PL_screamnext; | |
| a0d0e21e LW |
726 | |
| 727 | if (!sfirst || !snext) | |
| cea2e8a9 | 728 | DIE(aTHX_ "do_study: out of memory"); |
| a0d0e21e LW |
729 | |
| 730 | for (ch = 256; ch; --ch) | |
| 731 | *sfirst++ = -1; | |
| 732 | sfirst -= 256; | |
| 733 | ||
| 734 | while (--pos >= 0) { | |
| 1b6737cc | 735 | register const I32 ch = s[pos]; |
| a0d0e21e LW |
736 | if (sfirst[ch] >= 0) |
| 737 | snext[pos] = sfirst[ch] - pos; | |
| 738 | else | |
| 739 | snext[pos] = -pos; | |
| 740 | sfirst[ch] = pos; | |
| 79072805 LW |
741 | } |
| 742 | ||
| c07a80fd | 743 | SvSCREAM_on(sv); |
| 14befaf4 | 744 | /* piggyback on m//g magic */ |
| c445ea15 | 745 | sv_magic(sv, NULL, PERL_MAGIC_regex_global, NULL, 0); |
| 1e422769 | 746 | RETPUSHYES; |
| 79072805 LW |
747 | } |
| 748 | ||
| a0d0e21e | 749 | PP(pp_trans) |
| 79072805 | 750 | { |
| 97aff369 | 751 | dVAR; dSP; dTARG; |
| a0d0e21e LW |
752 | SV *sv; |
| 753 | ||
| 533c011a | 754 | if (PL_op->op_flags & OPf_STACKED) |
| a0d0e21e | 755 | sv = POPs; |
| 59f00321 RGS |
756 | else if (PL_op->op_private & OPpTARGET_MY) |
| 757 | sv = GETTARGET; | |
| 79072805 | 758 | else { |
| 54b9620d | 759 | sv = DEFSV; |
| a0d0e21e | 760 | EXTEND(SP,1); |
| 79072805 | 761 | } |
| adbc6bb1 | 762 | TARG = sv_newmortal(); |
| 4757a243 | 763 | PUSHi(do_trans(sv)); |
| a0d0e21e | 764 | RETURN; |
| 79072805 LW |
765 | } |
| 766 | ||
| a0d0e21e | 767 | /* Lvalue operators. */ |
| 79072805 | 768 | |
| a0d0e21e LW |
769 | PP(pp_schop) |
| 770 | { | |
| 97aff369 | 771 | dVAR; dSP; dTARGET; |
| a0d0e21e LW |
772 | do_chop(TARG, TOPs); |
| 773 | SETTARG; | |
| 774 | RETURN; | |
| 79072805 LW |
775 | } |
| 776 | ||
| a0d0e21e | 777 | PP(pp_chop) |
| 79072805 | 778 | { |
| 97aff369 | 779 | dVAR; dSP; dMARK; dTARGET; dORIGMARK; |
| 2ec6af5f RG |
780 | while (MARK < SP) |
| 781 | do_chop(TARG, *++MARK); | |
| 782 | SP = ORIGMARK; | |
| b59aed67 | 783 | XPUSHTARG; |
| a0d0e21e | 784 | RETURN; |
| 79072805 LW |
785 | } |
| 786 | ||
| a0d0e21e | 787 | PP(pp_schomp) |
| 79072805 | 788 | { |
| 97aff369 | 789 | dVAR; dSP; dTARGET; |
| a0d0e21e LW |
790 | SETi(do_chomp(TOPs)); |
| 791 | RETURN; | |
| 79072805 LW |
792 | } |
| 793 | ||
| a0d0e21e | 794 | PP(pp_chomp) |
| 79072805 | 795 | { |
| 97aff369 | 796 | dVAR; dSP; dMARK; dTARGET; |
| a0d0e21e | 797 | register I32 count = 0; |
| 8ec5e241 | 798 | |
| a0d0e21e LW |
799 | while (SP > MARK) |
| 800 | count += do_chomp(POPs); | |
| b59aed67 | 801 | XPUSHi(count); |
| a0d0e21e | 802 | RETURN; |
| 79072805 LW |
803 | } |
| 804 | ||
| a0d0e21e LW |
805 | PP(pp_undef) |
| 806 | { | |
| 97aff369 | 807 | dVAR; dSP; |
| a0d0e21e LW |
808 | SV *sv; |
| 809 | ||
| 533c011a | 810 | if (!PL_op->op_private) { |
| 774d564b | 811 | EXTEND(SP, 1); |
| a0d0e21e | 812 | RETPUSHUNDEF; |
| 774d564b | 813 | } |
| 79072805 | 814 | |
| a0d0e21e LW |
815 | sv = POPs; |
| 816 | if (!sv) | |
| 817 | RETPUSHUNDEF; | |
| 85e6fe83 | 818 | |
| 765f542d | 819 | SV_CHECK_THINKFIRST_COW_DROP(sv); |
| 85e6fe83 | 820 | |
| a0d0e21e LW |
821 | switch (SvTYPE(sv)) { |
| 822 | case SVt_NULL: | |
| 823 | break; | |
| 824 | case SVt_PVAV: | |
| 502c6561 | 825 | av_undef(MUTABLE_AV(sv)); |
| a0d0e21e LW |
826 | break; |
| 827 | case SVt_PVHV: | |
| 85fbaab2 | 828 | hv_undef(MUTABLE_HV(sv)); |
| a0d0e21e LW |
829 | break; |
| 830 | case SVt_PVCV: | |
| a2a5de95 NC |
831 | if (cv_const_sv((const CV *)sv)) |
| 832 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), "Constant subroutine %s undefined", | |
| 833 | CvANON((const CV *)sv) ? "(anonymous)" | |
| 834 | : GvENAME(CvGV((const CV *)sv))); | |
| 5f66b61c | 835 | /* FALLTHROUGH */ |
| 9607fc9c | 836 | case SVt_PVFM: |
| 6fc92669 GS |
837 | { |
| 838 | /* let user-undef'd sub keep its identity */ | |
| ea726b52 NC |
839 | GV* const gv = CvGV((const CV *)sv); |
| 840 | cv_undef(MUTABLE_CV(sv)); | |
| 841 | CvGV((const CV *)sv) = gv; | |
| 6fc92669 | 842 | } |
| a0d0e21e | 843 | break; |
| 8e07c86e | 844 | case SVt_PVGV: |
| 6e592b3a | 845 | if (SvFAKE(sv)) { |
| 3280af22 | 846 | SvSetMagicSV(sv, &PL_sv_undef); |
| 6e592b3a BM |
847 | break; |
| 848 | } | |
| 849 | else if (isGV_with_GP(sv)) { | |
| 20408e3c | 850 | GP *gp; |
| dd69841b BB |
851 | HV *stash; |
| 852 | ||
| 853 | /* undef *Foo:: */ | |
| 159b6efe | 854 | if((stash = GvHV((const GV *)sv)) && HvNAME_get(stash)) |
| dd69841b BB |
855 | mro_isa_changed_in(stash); |
| 856 | /* undef *Pkg::meth_name ... */ | |
| 159b6efe NC |
857 | else if(GvCVu((const GV *)sv) && (stash = GvSTASH((const GV *)sv)) |
| 858 | && HvNAME_get(stash)) | |
| dd69841b BB |
859 | mro_method_changed_in(stash); |
| 860 | ||
| 159b6efe | 861 | gp_free(MUTABLE_GV(sv)); |
| a02a5408 | 862 | Newxz(gp, 1, GP); |
| 20408e3c | 863 | GvGP(sv) = gp_ref(gp); |
| 561b68a9 | 864 | GvSV(sv) = newSV(0); |
| 57843af0 | 865 | GvLINE(sv) = CopLINE(PL_curcop); |
| 159b6efe | 866 | GvEGV(sv) = MUTABLE_GV(sv); |
| 20408e3c | 867 | GvMULTI_on(sv); |
| 6e592b3a | 868 | break; |
| 20408e3c | 869 | } |
| 6e592b3a | 870 | /* FALL THROUGH */ |
| a0d0e21e | 871 | default: |
| b15aece3 | 872 | if (SvTYPE(sv) >= SVt_PV && SvPVX_const(sv) && SvLEN(sv)) { |
| 8bd4d4c5 | 873 | SvPV_free(sv); |
| c445ea15 | 874 | SvPV_set(sv, NULL); |
| 4633a7c4 | 875 | SvLEN_set(sv, 0); |
| a0d0e21e | 876 | } |
| 0c34ef67 | 877 | SvOK_off(sv); |
| 4633a7c4 | 878 | SvSETMAGIC(sv); |
| 79072805 | 879 | } |
| a0d0e21e LW |
880 | |
| 881 | RETPUSHUNDEF; | |
| 79072805 LW |
882 | } |
| 883 | ||
| a0d0e21e | 884 | PP(pp_predec) |
| 79072805 | 885 | { |
| 97aff369 | 886 | dVAR; dSP; |
| 6e592b3a | 887 | if (SvTYPE(TOPs) >= SVt_PVAV || isGV_with_GP(TOPs)) |
| f1f66076 | 888 | DIE(aTHX_ "%s", PL_no_modify); |
| 3510b4a1 NC |
889 | if (!SvREADONLY(TOPs) && SvIOK_notUV(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) |
| 890 | && SvIVX(TOPs) != IV_MIN) | |
| 55497cff | 891 | { |
| 45977657 | 892 | SvIV_set(TOPs, SvIVX(TOPs) - 1); |
| 55497cff | 893 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
| 748a9306 LW |
894 | } |
| 895 | else | |
| 896 | sv_dec(TOPs); | |
| a0d0e21e LW |
897 | SvSETMAGIC(TOPs); |
| 898 | return NORMAL; | |
| 899 | } | |
| 79072805 | 900 | |
| a0d0e21e LW |
901 | PP(pp_postinc) |
| 902 | { | |
| 97aff369 | 903 | dVAR; dSP; dTARGET; |
| 6e592b3a | 904 | if (SvTYPE(TOPs) >= SVt_PVAV || isGV_with_GP(TOPs)) |
| f1f66076 | 905 | DIE(aTHX_ "%s", PL_no_modify); |
| a0d0e21e | 906 | sv_setsv(TARG, TOPs); |
| 3510b4a1 NC |
907 | if (!SvREADONLY(TOPs) && SvIOK_notUV(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) |
| 908 | && SvIVX(TOPs) != IV_MAX) | |
| 55497cff | 909 | { |
| 45977657 | 910 | SvIV_set(TOPs, SvIVX(TOPs) + 1); |
| 55497cff | 911 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
| 748a9306 LW |
912 | } |
| 913 | else | |
| 914 | sv_inc(TOPs); | |
| a0d0e21e | 915 | SvSETMAGIC(TOPs); |
| 1e54a23f | 916 | /* special case for undef: see thread at 2003-03/msg00536.html in archive */ |
| a0d0e21e LW |
917 | if (!SvOK(TARG)) |
| 918 | sv_setiv(TARG, 0); | |
| 919 | SETs(TARG); | |
| 920 | return NORMAL; | |
| 921 | } | |
| 79072805 | 922 | |
| a0d0e21e LW |
923 | PP(pp_postdec) |
| 924 | { | |
| 97aff369 | 925 | dVAR; dSP; dTARGET; |
| 6e592b3a | 926 | if (SvTYPE(TOPs) >= SVt_PVAV || isGV_with_GP(TOPs)) |
| f1f66076 | 927 | DIE(aTHX_ "%s", PL_no_modify); |
| a0d0e21e | 928 | sv_setsv(TARG, TOPs); |
| 3510b4a1 NC |
929 | if (!SvREADONLY(TOPs) && SvIOK_notUV(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) |
| 930 | && SvIVX(TOPs) != IV_MIN) | |
| 55497cff | 931 | { |
| 45977657 | 932 | SvIV_set(TOPs, SvIVX(TOPs) - 1); |
| 55497cff | 933 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
| 748a9306 LW |
934 | } |
| 935 | else | |
| 936 | sv_dec(TOPs); | |
| a0d0e21e LW |
937 | SvSETMAGIC(TOPs); |
| 938 | SETs(TARG); | |
| 939 | return NORMAL; | |
| 940 | } | |
| 79072805 | 941 | |
| a0d0e21e LW |
942 | /* Ordinary operators. */ |
| 943 | ||
| 944 | PP(pp_pow) | |
| 945 | { | |
| 800401ee | 946 | dVAR; dSP; dATARGET; SV *svl, *svr; |
| 58d76dfd | 947 | #ifdef PERL_PRESERVE_IVUV |
| 52a96ae6 HS |
948 | bool is_int = 0; |
| 949 | #endif | |
| 950 | tryAMAGICbin(pow,opASSIGN); | |
| 800401ee JH |
951 | svl = sv_2num(TOPm1s); |
| 952 | svr = sv_2num(TOPs); | |
| 52a96ae6 HS |
953 | #ifdef PERL_PRESERVE_IVUV |
| 954 | /* For integer to integer power, we do the calculation by hand wherever | |
| 955 | we're sure it is safe; otherwise we call pow() and try to convert to | |
| 956 | integer afterwards. */ | |
| 58d76dfd | 957 | { |
| 800401ee JH |
958 | SvIV_please(svr); |
| 959 | if (SvIOK(svr)) { | |
| 960 | SvIV_please(svl); | |
| 961 | if (SvIOK(svl)) { | |
| 900658e3 PF |
962 | UV power; |
| 963 | bool baseuok; | |
| 964 | UV baseuv; | |
| 965 | ||
| 800401ee JH |
966 | if (SvUOK(svr)) { |
| 967 | power = SvUVX(svr); | |
| 900658e3 | 968 | } else { |
| 800401ee | 969 | const IV iv = SvIVX(svr); |
| 900658e3 PF |
970 | if (iv >= 0) { |
| 971 | power = iv; | |
| 972 | } else { | |
| 973 | goto float_it; /* Can't do negative powers this way. */ | |
| 974 | } | |
| 975 | } | |
| 976 | ||
| 800401ee | 977 | baseuok = SvUOK(svl); |
| 900658e3 | 978 | if (baseuok) { |
| 800401ee | 979 | baseuv = SvUVX(svl); |
| 900658e3 | 980 | } else { |
| 800401ee | 981 | const IV iv = SvIVX(svl); |
| 900658e3 PF |
982 | if (iv >= 0) { |
| 983 | baseuv = iv; | |
| 984 | baseuok = TRUE; /* effectively it's a UV now */ | |
| 985 | } else { | |
| 986 | baseuv = -iv; /* abs, baseuok == false records sign */ | |
| 987 | } | |
| 988 | } | |
| 52a96ae6 HS |
989 | /* now we have integer ** positive integer. */ |
| 990 | is_int = 1; | |
| 991 | ||
| 992 | /* foo & (foo - 1) is zero only for a power of 2. */ | |
| 58d76dfd | 993 | if (!(baseuv & (baseuv - 1))) { |
| 52a96ae6 | 994 | /* We are raising power-of-2 to a positive integer. |
| 58d76dfd JH |
995 | The logic here will work for any base (even non-integer |
| 996 | bases) but it can be less accurate than | |
| 997 | pow (base,power) or exp (power * log (base)) when the | |
| 998 | intermediate values start to spill out of the mantissa. | |
| 999 | With powers of 2 we know this can't happen. | |
| 1000 | And powers of 2 are the favourite thing for perl | |
| 1001 | programmers to notice ** not doing what they mean. */ | |
| 1002 | NV result = 1.0; | |
| 1003 | NV base = baseuok ? baseuv : -(NV)baseuv; | |
| 900658e3 PF |
1004 | |
| 1005 | if (power & 1) { | |
| 1006 | result *= base; | |
| 1007 | } | |
| 1008 | while (power >>= 1) { | |
| 1009 | base *= base; | |
| 1010 | if (power & 1) { | |
| 1011 | result *= base; | |
| 1012 | } | |
| 1013 | } | |
| 58d76dfd JH |
1014 | SP--; |
| 1015 | SETn( result ); | |
| 800401ee | 1016 | SvIV_please(svr); |
| 58d76dfd | 1017 | RETURN; |
| 52a96ae6 HS |
1018 | } else { |
| 1019 | register unsigned int highbit = 8 * sizeof(UV); | |
| 900658e3 PF |
1020 | register unsigned int diff = 8 * sizeof(UV); |
| 1021 | while (diff >>= 1) { | |
| 1022 | highbit -= diff; | |
| 1023 | if (baseuv >> highbit) { | |
| 1024 | highbit += diff; | |
| 1025 | } | |
| 52a96ae6 HS |
1026 | } |
| 1027 | /* we now have baseuv < 2 ** highbit */ | |
| 1028 | if (power * highbit <= 8 * sizeof(UV)) { | |
| 1029 | /* result will definitely fit in UV, so use UV math | |
| 1030 | on same algorithm as above */ | |
| 1031 | register UV result = 1; | |
| 1032 | register UV base = baseuv; | |
| 900658e3 PF |
1033 | const bool odd_power = (bool)(power & 1); |
| 1034 | if (odd_power) { | |
| 1035 | result *= base; | |
| 1036 | } | |
| 1037 | while (power >>= 1) { | |
| 1038 | base *= base; | |
| 1039 | if (power & 1) { | |
| 52a96ae6 | 1040 | result *= base; |
| 52a96ae6 HS |
1041 | } |
| 1042 | } | |
| 1043 | SP--; | |
| 0615a994 | 1044 | if (baseuok || !odd_power) |
| 52a96ae6 HS |
1045 | /* answer is positive */ |
| 1046 | SETu( result ); | |
| 1047 | else if (result <= (UV)IV_MAX) | |
| 1048 | /* answer negative, fits in IV */ | |
| 1049 | SETi( -(IV)result ); | |
| 1050 | else if (result == (UV)IV_MIN) | |
| 1051 | /* 2's complement assumption: special case IV_MIN */ | |
| 1052 | SETi( IV_MIN ); | |
| 1053 | else | |
| 1054 | /* answer negative, doesn't fit */ | |
| 1055 | SETn( -(NV)result ); | |
| 1056 | RETURN; | |
| 1057 | } | |
| 1058 | } | |
| 1059 | } | |
| 1060 | } | |
| 58d76dfd | 1061 | } |
| 52a96ae6 | 1062 | float_it: |
| 58d76dfd | 1063 | #endif |
| a0d0e21e | 1064 | { |
| 4efa5a16 RD |
1065 | NV right = SvNV(svr); |
| 1066 | NV left = SvNV(svl); | |
| 1067 | (void)POPs; | |
| 3aaeb624 JA |
1068 | |
| 1069 | #if defined(USE_LONG_DOUBLE) && defined(HAS_AIX_POWL_NEG_BASE_BUG) | |
| 1070 | /* | |
| 1071 | We are building perl with long double support and are on an AIX OS | |
| 1072 | afflicted with a powl() function that wrongly returns NaNQ for any | |
| 1073 | negative base. This was reported to IBM as PMR #23047-379 on | |
| 1074 | 03/06/2006. The problem exists in at least the following versions | |
| 1075 | of AIX and the libm fileset, and no doubt others as well: | |
| 1076 | ||
| 1077 | AIX 4.3.3-ML10 bos.adt.libm 4.3.3.50 | |
| 1078 | AIX 5.1.0-ML04 bos.adt.libm 5.1.0.29 | |
| 1079 | AIX 5.2.0 bos.adt.libm 5.2.0.85 | |
| 1080 | ||
| 1081 | So, until IBM fixes powl(), we provide the following workaround to | |
| 1082 | handle the problem ourselves. Our logic is as follows: for | |
| 1083 | negative bases (left), we use fmod(right, 2) to check if the | |
| 1084 | exponent is an odd or even integer: | |
| 1085 | ||
| 1086 | - if odd, powl(left, right) == -powl(-left, right) | |
| 1087 | - if even, powl(left, right) == powl(-left, right) | |
| 1088 | ||
| 1089 | If the exponent is not an integer, the result is rightly NaNQ, so | |
| 1090 | we just return that (as NV_NAN). | |
| 1091 | */ | |
| 1092 | ||
| 1093 | if (left < 0.0) { | |
| 1094 | NV mod2 = Perl_fmod( right, 2.0 ); | |
| 1095 | if (mod2 == 1.0 || mod2 == -1.0) { /* odd integer */ | |
| 1096 | SETn( -Perl_pow( -left, right) ); | |
| 1097 | } else if (mod2 == 0.0) { /* even integer */ | |
| 1098 | SETn( Perl_pow( -left, right) ); | |
| 1099 | } else { /* fractional power */ | |
| 1100 | SETn( NV_NAN ); | |
| 1101 | } | |
| 1102 | } else { | |
| 1103 | SETn( Perl_pow( left, right) ); | |
| 1104 | } | |
| 1105 | #else | |
| 52a96ae6 | 1106 | SETn( Perl_pow( left, right) ); |
| 3aaeb624 JA |
1107 | #endif /* HAS_AIX_POWL_NEG_BASE_BUG */ |
| 1108 | ||
| 52a96ae6 HS |
1109 | #ifdef PERL_PRESERVE_IVUV |
| 1110 | if (is_int) | |
| 800401ee | 1111 | SvIV_please(svr); |
| 52a96ae6 HS |
1112 | #endif |
| 1113 | RETURN; | |
| 93a17b20 | 1114 | } |
| a0d0e21e LW |
1115 | } |
| 1116 | ||
| 1117 | PP(pp_multiply) | |
| 1118 | { | |
| 800401ee JH |
1119 | dVAR; dSP; dATARGET; SV *svl, *svr; |
| 1120 | tryAMAGICbin(mult,opASSIGN); | |
| 1121 | svl = sv_2num(TOPm1s); | |
| 1122 | svr = sv_2num(TOPs); | |
| 28e5dec8 | 1123 | #ifdef PERL_PRESERVE_IVUV |
| 800401ee JH |
1124 | SvIV_please(svr); |
| 1125 | if (SvIOK(svr)) { | |
| 28e5dec8 JH |
1126 | /* Unless the left argument is integer in range we are going to have to |
| 1127 | use NV maths. Hence only attempt to coerce the right argument if | |
| 1128 | we know the left is integer. */ | |
| 1129 | /* Left operand is defined, so is it IV? */ | |
| 800401ee JH |
1130 | SvIV_please(svl); |
| 1131 | if (SvIOK(svl)) { | |
| 1132 | bool auvok = SvUOK(svl); | |
| 1133 | bool buvok = SvUOK(svr); | |
| 28e5dec8 JH |
1134 | const UV topmask = (~ (UV)0) << (4 * sizeof (UV)); |
| 1135 | const UV botmask = ~((~ (UV)0) << (4 * sizeof (UV))); | |
| 1136 | UV alow; | |
| 1137 | UV ahigh; | |
| 1138 | UV blow; | |
| 1139 | UV bhigh; | |
| 1140 | ||
| 1141 | if (auvok) { | |
| 800401ee | 1142 | alow = SvUVX(svl); |
| 28e5dec8 | 1143 | } else { |
| 800401ee | 1144 | const IV aiv = SvIVX(svl); |
| 28e5dec8 JH |
1145 | if (aiv >= 0) { |
| 1146 | alow = aiv; | |
| 1147 | auvok = TRUE; /* effectively it's a UV now */ | |
| 1148 | } else { | |
| 1149 | alow = -aiv; /* abs, auvok == false records sign */ | |
| 1150 | } | |
| 1151 | } | |
| 1152 | if (buvok) { | |
| 800401ee | 1153 | blow = SvUVX(svr); |
| 28e5dec8 | 1154 | } else { |
| 800401ee | 1155 | const IV biv = SvIVX(svr); |
| 28e5dec8 JH |
1156 | if (biv >= 0) { |
| 1157 | blow = biv; | |
| 1158 | buvok = TRUE; /* effectively it's a UV now */ | |
| 1159 | } else { | |
| 1160 | blow = -biv; /* abs, buvok == false records sign */ | |
| 1161 | } | |
| 1162 | } | |
| 1163 | ||
| 1164 | /* If this does sign extension on unsigned it's time for plan B */ | |
| 1165 | ahigh = alow >> (4 * sizeof (UV)); | |
| 1166 | alow &= botmask; | |
| 1167 | bhigh = blow >> (4 * sizeof (UV)); | |
| 1168 | blow &= botmask; | |
| 1169 | if (ahigh && bhigh) { | |
| 6f207bd3 | 1170 | NOOP; |
| 28e5dec8 JH |
1171 | /* eg 32 bit is at least 0x10000 * 0x10000 == 0x100000000 |
| 1172 | which is overflow. Drop to NVs below. */ | |
| 1173 | } else if (!ahigh && !bhigh) { | |
| 1174 | /* eg 32 bit is at most 0xFFFF * 0xFFFF == 0xFFFE0001 | |
| 1175 | so the unsigned multiply cannot overflow. */ | |
| c445ea15 | 1176 | const UV product = alow * blow; |
| 28e5dec8 JH |
1177 | if (auvok == buvok) { |
| 1178 | /* -ve * -ve or +ve * +ve gives a +ve result. */ | |
| 1179 | SP--; | |
| 1180 | SETu( product ); | |
| 1181 | RETURN; | |
| 1182 | } else if (product <= (UV)IV_MIN) { | |
| 1183 | /* 2s complement assumption that (UV)-IV_MIN is correct. */ | |
| 1184 | /* -ve result, which could overflow an IV */ | |
| 1185 | SP--; | |
| 25716404 | 1186 | SETi( -(IV)product ); |
| 28e5dec8 JH |
1187 | RETURN; |
| 1188 | } /* else drop to NVs below. */ | |
| 1189 | } else { | |
| 1190 | /* One operand is large, 1 small */ | |
| 1191 | UV product_middle; | |
| 1192 | if (bhigh) { | |
| 1193 | /* swap the operands */ | |
| 1194 | ahigh = bhigh; | |
| 1195 | bhigh = blow; /* bhigh now the temp var for the swap */ | |
| 1196 | blow = alow; | |
| 1197 | alow = bhigh; | |
| 1198 | } | |
| 1199 | /* now, ((ahigh * blow) << half_UV_len) + (alow * blow) | |
| 1200 | multiplies can't overflow. shift can, add can, -ve can. */ | |
| 1201 | product_middle = ahigh * blow; | |
| 1202 | if (!(product_middle & topmask)) { | |
| 1203 | /* OK, (ahigh * blow) won't lose bits when we shift it. */ | |
| 1204 | UV product_low; | |
| 1205 | product_middle <<= (4 * sizeof (UV)); | |
| 1206 | product_low = alow * blow; | |
| 1207 | ||
| 1208 | /* as for pp_add, UV + something mustn't get smaller. | |
| 1209 | IIRC ANSI mandates this wrapping *behaviour* for | |
| 1210 | unsigned whatever the actual representation*/ | |
| 1211 | product_low += product_middle; | |
| 1212 | if (product_low >= product_middle) { | |
| 1213 | /* didn't overflow */ | |
| 1214 | if (auvok == buvok) { | |
| 1215 | /* -ve * -ve or +ve * +ve gives a +ve result. */ | |
| 1216 | SP--; | |
| 1217 | SETu( product_low ); | |
| 1218 | RETURN; | |
| 1219 | } else if (product_low <= (UV)IV_MIN) { | |
| 1220 | /* 2s complement assumption again */ | |
| 1221 | /* -ve result, which could overflow an IV */ | |
| 1222 | SP--; | |
| 25716404 | 1223 | SETi( -(IV)product_low ); |
| 28e5dec8 JH |
1224 | RETURN; |
| 1225 | } /* else drop to NVs below. */ | |
| 1226 | } | |
| 1227 | } /* product_middle too large */ | |
| 1228 | } /* ahigh && bhigh */ | |
| 800401ee JH |
1229 | } /* SvIOK(svl) */ |
| 1230 | } /* SvIOK(svr) */ | |
| 28e5dec8 | 1231 | #endif |
| a0d0e21e | 1232 | { |
| 4efa5a16 RD |
1233 | NV right = SvNV(svr); |
| 1234 | NV left = SvNV(svl); | |
| 1235 | (void)POPs; | |
| a0d0e21e LW |
1236 | SETn( left * right ); |
| 1237 | RETURN; | |
| 79072805 | 1238 | } |
| a0d0e21e LW |
1239 | } |
| 1240 | ||
| 1241 | PP(pp_divide) | |
| 1242 | { | |
| 800401ee JH |
1243 | dVAR; dSP; dATARGET; SV *svl, *svr; |
| 1244 | tryAMAGICbin(div,opASSIGN); | |
| 1245 | svl = sv_2num(TOPm1s); | |
| 1246 | svr = sv_2num(TOPs); | |
| 5479d192 | 1247 | /* Only try to do UV divide first |
| 68795e93 | 1248 | if ((SLOPPYDIVIDE is true) or |
| 5479d192 NC |
1249 | (PERL_PRESERVE_IVUV is true and one or both SV is a UV too large |
| 1250 | to preserve)) | |
| 1251 | The assumption is that it is better to use floating point divide | |
| 1252 | whenever possible, only doing integer divide first if we can't be sure. | |
| 1253 | If NV_PRESERVES_UV is true then we know at compile time that no UV | |
| 1254 | can be too large to preserve, so don't need to compile the code to | |
| 1255 | test the size of UVs. */ | |
| 1256 | ||
| a0d0e21e | 1257 | #ifdef SLOPPYDIVIDE |
| 5479d192 NC |
1258 | # define PERL_TRY_UV_DIVIDE |
| 1259 | /* ensure that 20./5. == 4. */ | |
| a0d0e21e | 1260 | #else |
| 5479d192 NC |
1261 | # ifdef PERL_PRESERVE_IVUV |
| 1262 | # ifndef NV_PRESERVES_UV | |
| 1263 | # define PERL_TRY_UV_DIVIDE | |
| 1264 | # endif | |
| 1265 | # endif | |
| a0d0e21e | 1266 | #endif |
| 5479d192 NC |
1267 | |
| 1268 | #ifdef PERL_TRY_UV_DIVIDE | |
| 800401ee JH |
1269 | SvIV_please(svr); |
| 1270 | if (SvIOK(svr)) { | |
| 1271 | SvIV_please(svl); | |
| 1272 | if (SvIOK(svl)) { | |
| 1273 | bool left_non_neg = SvUOK(svl); | |
| 1274 | bool right_non_neg = SvUOK(svr); | |
| 5479d192 NC |
1275 | UV left; |
| 1276 | UV right; | |
| 1277 | ||
| 1278 | if (right_non_neg) { | |
| 800401ee | 1279 | right = SvUVX(svr); |
| 5479d192 NC |
1280 | } |
| 1281 | else { | |
| 800401ee | 1282 | const IV biv = SvIVX(svr); |
| 5479d192 NC |
1283 | if (biv >= 0) { |
| 1284 | right = biv; | |
| 1285 | right_non_neg = TRUE; /* effectively it's a UV now */ | |
| 1286 | } | |
| 1287 | else { | |
| 1288 | right = -biv; | |
| 1289 | } | |
| 1290 | } | |
| 1291 | /* historically undef()/0 gives a "Use of uninitialized value" | |
| 1292 | warning before dieing, hence this test goes here. | |
| 1293 | If it were immediately before the second SvIV_please, then | |
| 1294 | DIE() would be invoked before left was even inspected, so | |
| 1295 | no inpsection would give no warning. */ | |
| 1296 | if (right == 0) | |
| 1297 | DIE(aTHX_ "Illegal division by zero"); | |
| 1298 | ||
| 1299 | if (left_non_neg) { | |
| 800401ee | 1300 | left = SvUVX(svl); |
| 5479d192 NC |
1301 | } |
| 1302 | else { | |
| 800401ee | 1303 | const IV aiv = SvIVX(svl); |
| 5479d192 NC |
1304 | if (aiv >= 0) { |
| 1305 | left = aiv; | |
| 1306 | left_non_neg = TRUE; /* effectively it's a UV now */ | |
| 1307 | } | |
| 1308 | else { | |
| 1309 | left = -aiv; | |
| 1310 | } | |
| 1311 | } | |
| 1312 | ||
| 1313 | if (left >= right | |
| 1314 | #ifdef SLOPPYDIVIDE | |
| 1315 | /* For sloppy divide we always attempt integer division. */ | |
| 1316 | #else | |
| 1317 | /* Otherwise we only attempt it if either or both operands | |
| 1318 | would not be preserved by an NV. If both fit in NVs | |
| 0c2ee62a NC |
1319 | we fall through to the NV divide code below. However, |
| 1320 | as left >= right to ensure integer result here, we know that | |
| 1321 | we can skip the test on the right operand - right big | |
| 1322 | enough not to be preserved can't get here unless left is | |
| 1323 | also too big. */ | |
| 1324 | ||
| 1325 | && (left > ((UV)1 << NV_PRESERVES_UV_BITS)) | |
| 5479d192 NC |
1326 | #endif |
| 1327 | ) { | |
| 1328 | /* Integer division can't overflow, but it can be imprecise. */ | |
| 1b6737cc | 1329 | const UV result = left / right; |
| 5479d192 NC |
1330 | if (result * right == left) { |
| 1331 | SP--; /* result is valid */ | |
| 1332 | if (left_non_neg == right_non_neg) { | |
| 1333 | /* signs identical, result is positive. */ | |
| 1334 | SETu( result ); | |
| 1335 | RETURN; | |
| 1336 | } | |
| 1337 | /* 2s complement assumption */ | |
| 1338 | if (result <= (UV)IV_MIN) | |
| 91f3b821 | 1339 | SETi( -(IV)result ); |
| 5479d192 NC |
1340 | else { |
| 1341 | /* It's exact but too negative for IV. */ | |
| 1342 | SETn( -(NV)result ); | |
| 1343 | } | |
| 1344 | RETURN; | |
| 1345 | } /* tried integer divide but it was not an integer result */ | |
| 32fdb065 | 1346 | } /* else (PERL_ABS(result) < 1.0) or (both UVs in range for NV) */ |
| 5479d192 NC |
1347 | } /* left wasn't SvIOK */ |
| 1348 | } /* right wasn't SvIOK */ | |
| 1349 | #endif /* PERL_TRY_UV_DIVIDE */ | |
| 1350 | { | |
| 4efa5a16 RD |
1351 | NV right = SvNV(svr); |
| 1352 | NV left = SvNV(svl); | |
| 1353 | (void)POPs;(void)POPs; | |
| ebc6a117 PD |
1354 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
| 1355 | if (! Perl_isnan(right) && right == 0.0) | |
| 1356 | #else | |
| 5479d192 | 1357 | if (right == 0.0) |
| ebc6a117 | 1358 | #endif |
| 5479d192 NC |
1359 | DIE(aTHX_ "Illegal division by zero"); |
| 1360 | PUSHn( left / right ); | |
| 1361 | RETURN; | |
| 79072805 | 1362 | } |
| a0d0e21e LW |
1363 | } |
| 1364 | ||
| 1365 | PP(pp_modulo) | |
| 1366 | { | |
| 97aff369 | 1367 | dVAR; dSP; dATARGET; tryAMAGICbin(modulo,opASSIGN); |
| a0d0e21e | 1368 | { |
| 9c5ffd7c JH |
1369 | UV left = 0; |
| 1370 | UV right = 0; | |
| dc656993 JH |
1371 | bool left_neg = FALSE; |
| 1372 | bool right_neg = FALSE; | |
| e2c88acc NC |
1373 | bool use_double = FALSE; |
| 1374 | bool dright_valid = FALSE; | |
| 9c5ffd7c JH |
1375 | NV dright = 0.0; |
| 1376 | NV dleft = 0.0; | |
| 800401ee JH |
1377 | SV * svl; |
| 1378 | SV * const svr = sv_2num(TOPs); | |
| 1379 | SvIV_please(svr); | |
| 1380 | if (SvIOK(svr)) { | |
| 1381 | right_neg = !SvUOK(svr); | |
| e2c88acc | 1382 | if (!right_neg) { |
| 800401ee | 1383 | right = SvUVX(svr); |
| e2c88acc | 1384 | } else { |
| 800401ee | 1385 | const IV biv = SvIVX(svr); |
| e2c88acc NC |
1386 | if (biv >= 0) { |
| 1387 | right = biv; | |
| 1388 | right_neg = FALSE; /* effectively it's a UV now */ | |
| 1389 | } else { | |
| 1390 | right = -biv; | |
| 1391 | } | |
| 1392 | } | |
| 1393 | } | |
| 1394 | else { | |
| 4efa5a16 | 1395 | dright = SvNV(svr); |
| 787eafbd IZ |
1396 | right_neg = dright < 0; |
| 1397 | if (right_neg) | |
| 1398 | dright = -dright; | |
| e2c88acc NC |
1399 | if (dright < UV_MAX_P1) { |
| 1400 | right = U_V(dright); | |
| 1401 | dright_valid = TRUE; /* In case we need to use double below. */ | |
| 1402 | } else { | |
| 1403 | use_double = TRUE; | |
| 1404 | } | |
| 787eafbd | 1405 | } |
| 4efa5a16 | 1406 | sp--; |
| a0d0e21e | 1407 | |
| e2c88acc NC |
1408 | /* At this point use_double is only true if right is out of range for |
| 1409 | a UV. In range NV has been rounded down to nearest UV and | |
| 1410 | use_double false. */ | |
| 800401ee JH |
1411 | svl = sv_2num(TOPs); |
| 1412 | SvIV_please(svl); | |
| 1413 | if (!use_double && SvIOK(svl)) { | |
| 1414 | if (SvIOK(svl)) { | |
| 1415 | left_neg = !SvUOK(svl); | |
| e2c88acc | 1416 | if (!left_neg) { |
| 800401ee | 1417 | left = SvUVX(svl); |
| e2c88acc | 1418 | } else { |
| 800401ee | 1419 | const IV aiv = SvIVX(svl); |
| e2c88acc NC |
1420 | if (aiv >= 0) { |
| 1421 | left = aiv; | |
| 1422 | left_neg = FALSE; /* effectively it's a UV now */ | |
| 1423 | } else { | |
| 1424 | left = -aiv; | |
| 1425 | } | |
| 1426 | } | |
| 1427 | } | |
| 1428 | } | |
| 787eafbd | 1429 | else { |
| 4efa5a16 | 1430 | dleft = SvNV(svl); |
| 787eafbd IZ |
1431 | left_neg = dleft < 0; |
| 1432 | if (left_neg) | |
| 1433 | dleft = -dleft; | |
| 68dc0745 | 1434 | |
| e2c88acc NC |
1435 | /* This should be exactly the 5.6 behaviour - if left and right are |
| 1436 | both in range for UV then use U_V() rather than floor. */ | |
| 1437 | if (!use_double) { | |
| 1438 | if (dleft < UV_MAX_P1) { | |
| 1439 | /* right was in range, so is dleft, so use UVs not double. | |
| 1440 | */ | |
| 1441 | left = U_V(dleft); | |
| 1442 | } | |
| 1443 | /* left is out of range for UV, right was in range, so promote | |
| 1444 | right (back) to double. */ | |
| 1445 | else { | |
| 1446 | /* The +0.5 is used in 5.6 even though it is not strictly | |
| 1447 | consistent with the implicit +0 floor in the U_V() | |
| 1448 | inside the #if 1. */ | |
| 1449 | dleft = Perl_floor(dleft + 0.5); | |
| 1450 | use_double = TRUE; | |
| 1451 | if (dright_valid) | |
| 1452 | dright = Perl_floor(dright + 0.5); | |
| 1453 | else | |
| 1454 | dright = right; | |
| 1455 | } | |
| 1456 | } | |
| 1457 | } | |
| 4efa5a16 | 1458 | sp--; |
| 787eafbd | 1459 | if (use_double) { |
| 65202027 | 1460 | NV dans; |
| 787eafbd | 1461 | |
| 787eafbd | 1462 | if (!dright) |
| cea2e8a9 | 1463 | DIE(aTHX_ "Illegal modulus zero"); |
| 787eafbd | 1464 | |
| 65202027 | 1465 | dans = Perl_fmod(dleft, dright); |
| 787eafbd IZ |
1466 | if ((left_neg != right_neg) && dans) |
| 1467 | dans = dright - dans; | |
| 1468 | if (right_neg) | |
| 1469 | dans = -dans; | |
| 1470 | sv_setnv(TARG, dans); | |
| 1471 | } | |
| 1472 | else { | |
| 1473 | UV ans; | |
| 1474 | ||
| 787eafbd | 1475 | if (!right) |
| cea2e8a9 | 1476 | DIE(aTHX_ "Illegal modulus zero"); |
| 787eafbd IZ |
1477 | |
| 1478 | ans = left % right; | |
| 1479 | if ((left_neg != right_neg) && ans) | |
| 1480 | ans = right - ans; | |
| 1481 | if (right_neg) { | |
| 1482 | /* XXX may warn: unary minus operator applied to unsigned type */ | |
| 1483 | /* could change -foo to be (~foo)+1 instead */ | |
| 1484 | if (ans <= ~((UV)IV_MAX)+1) | |
| 1485 | sv_setiv(TARG, ~ans+1); | |
| 1486 | else | |
| 65202027 | 1487 | sv_setnv(TARG, -(NV)ans); |
| 787eafbd IZ |
1488 | } |
| 1489 | else | |
| 1490 | sv_setuv(TARG, ans); | |
| 1491 | } | |
| 1492 | PUSHTARG; | |
| 1493 | RETURN; | |
| 79072805 | 1494 | } |
| a0d0e21e | 1495 | } |
| 79072805 | 1496 | |
| a0d0e21e LW |
1497 | PP(pp_repeat) |
| 1498 | { | |
| 97aff369 | 1499 | dVAR; dSP; dATARGET; tryAMAGICbin(repeat,opASSIGN); |
| 748a9306 | 1500 | { |
| 2b573ace JH |
1501 | register IV count; |
| 1502 | dPOPss; | |
| 5b295bef | 1503 | SvGETMAGIC(sv); |
| 2b573ace JH |
1504 | if (SvIOKp(sv)) { |
| 1505 | if (SvUOK(sv)) { | |
| 1b6737cc | 1506 | const UV uv = SvUV(sv); |
| 2b573ace JH |
1507 | if (uv > IV_MAX) |
| 1508 | count = IV_MAX; /* The best we can do? */ | |
| 1509 | else | |
| 1510 | count = uv; | |
| 1511 | } else { | |
| 0bd48802 | 1512 | const IV iv = SvIV(sv); |
| 2b573ace JH |
1513 | if (iv < 0) |
| 1514 | count = 0; | |
| 1515 | else | |
| 1516 | count = iv; | |
| 1517 | } | |
| 1518 | } | |
| 1519 | else if (SvNOKp(sv)) { | |
| 1b6737cc | 1520 | const NV nv = SvNV(sv); |
| 2b573ace JH |
1521 | if (nv < 0.0) |
| 1522 | count = 0; | |
| 1523 | else | |
| 1524 | count = (IV)nv; | |
| 1525 | } | |
| 1526 | else | |
| 4ea561bc | 1527 | count = SvIV(sv); |
| 533c011a | 1528 | if (GIMME == G_ARRAY && PL_op->op_private & OPpREPEAT_DOLIST) { |
| a0d0e21e | 1529 | dMARK; |
| 0bd48802 AL |
1530 | static const char oom_list_extend[] = "Out of memory during list extend"; |
| 1531 | const I32 items = SP - MARK; | |
| 1532 | const I32 max = items * count; | |
| 79072805 | 1533 | |
| 2b573ace JH |
1534 | MEM_WRAP_CHECK_1(max, SV*, oom_list_extend); |
| 1535 | /* Did the max computation overflow? */ | |
| 27d5b266 | 1536 | if (items > 0 && max > 0 && (max < items || max < count)) |
| 2b573ace | 1537 | Perl_croak(aTHX_ oom_list_extend); |
| a0d0e21e LW |
1538 | MEXTEND(MARK, max); |
| 1539 | if (count > 1) { | |
| 1540 | while (SP > MARK) { | |
| 976c8a39 JH |
1541 | #if 0 |
| 1542 | /* This code was intended to fix 20010809.028: | |
| 1543 | ||
| 1544 | $x = 'abcd'; | |
| 1545 | for (($x =~ /./g) x 2) { | |
| 1546 | print chop; # "abcdabcd" expected as output. | |
| 1547 | } | |
| 1548 | ||
| 1549 | * but that change (#11635) broke this code: | |
| 1550 | ||
| 1551 | $x = [("foo")x2]; # only one "foo" ended up in the anonlist. | |
| 1552 | ||
| 1553 | * I can't think of a better fix that doesn't introduce | |
| 1554 | * an efficiency hit by copying the SVs. The stack isn't | |
| 1555 | * refcounted, and mortalisation obviously doesn't | |
| 1556 | * Do The Right Thing when the stack has more than | |
| 1557 | * one pointer to the same mortal value. | |
| 1558 | * .robin. | |
| 1559 | */ | |
| e30acc16 RH |
1560 | if (*SP) { |
| 1561 | *SP = sv_2mortal(newSVsv(*SP)); | |
| 1562 | SvREADONLY_on(*SP); | |
| 1563 | } | |
| 976c8a39 JH |
1564 | #else |
| 1565 | if (*SP) | |
| 1566 | SvTEMP_off((*SP)); | |
| 1567 | #endif | |
| a0d0e21e | 1568 | SP--; |
| 79072805 | 1569 | } |
| a0d0e21e LW |
1570 | MARK++; |
| 1571 | repeatcpy((char*)(MARK + items), (char*)MARK, | |
| ad64d0ec | 1572 | items * sizeof(const SV *), count - 1); |
| a0d0e21e | 1573 | SP += max; |
| 79072805 | 1574 | } |
| a0d0e21e LW |
1575 | else if (count <= 0) |
| 1576 | SP -= items; | |
| 79072805 | 1577 | } |
| a0d0e21e | 1578 | else { /* Note: mark already snarfed by pp_list */ |
| 0bd48802 | 1579 | SV * const tmpstr = POPs; |
| a0d0e21e | 1580 | STRLEN len; |
| 9b877dbb | 1581 | bool isutf; |
| 2b573ace JH |
1582 | static const char oom_string_extend[] = |
| 1583 | "Out of memory during string extend"; | |
| a0d0e21e | 1584 | |
| a0d0e21e LW |
1585 | SvSetSV(TARG, tmpstr); |
| 1586 | SvPV_force(TARG, len); | |
| 9b877dbb | 1587 | isutf = DO_UTF8(TARG); |
| 8ebc5c01 | 1588 | if (count != 1) { |
| 1589 | if (count < 1) | |
| 1590 | SvCUR_set(TARG, 0); | |
| 1591 | else { | |
| c445ea15 | 1592 | const STRLEN max = (UV)count * len; |
| 19a94d75 | 1593 | if (len > MEM_SIZE_MAX / count) |
| 2b573ace JH |
1594 | Perl_croak(aTHX_ oom_string_extend); |
| 1595 | MEM_WRAP_CHECK_1(max, char, oom_string_extend); | |
| 8569b9dc | 1596 | SvGROW(TARG, max + 1); |
| a0d0e21e | 1597 | repeatcpy(SvPVX(TARG) + len, SvPVX(TARG), len, count - 1); |
| b162af07 | 1598 | SvCUR_set(TARG, SvCUR(TARG) * count); |
| 7a4c00b4 | 1599 | } |
| a0d0e21e | 1600 | *SvEND(TARG) = '\0'; |
| a0d0e21e | 1601 | } |
| dfcb284a GS |
1602 | if (isutf) |
| 1603 | (void)SvPOK_only_UTF8(TARG); | |
| 1604 | else | |
| 1605 | (void)SvPOK_only(TARG); | |
| b80b6069 RH |
1606 | |
| 1607 | if (PL_op->op_private & OPpREPEAT_DOLIST) { | |
| 1608 | /* The parser saw this as a list repeat, and there | |
| 1609 | are probably several items on the stack. But we're | |
| 1610 | in scalar context, and there's no pp_list to save us | |
| 1611 | now. So drop the rest of the items -- robin@kitsite.com | |
| 1612 | */ | |
| 1613 | dMARK; | |
| 1614 | SP = MARK; | |
| 1615 | } | |
| a0d0e21e | 1616 | PUSHTARG; |
| 79072805 | 1617 | } |
| a0d0e21e | 1618 | RETURN; |
| 748a9306 | 1619 | } |
| a0d0e21e | 1620 | } |
| 79072805 | 1621 | |
| a0d0e21e LW |
1622 | PP(pp_subtract) |
| 1623 | { | |
| 800401ee JH |
1624 | dVAR; dSP; dATARGET; bool useleft; SV *svl, *svr; |
| 1625 | tryAMAGICbin(subtr,opASSIGN); | |
| 1626 | svl = sv_2num(TOPm1s); | |
| 1627 | svr = sv_2num(TOPs); | |
| 1628 | useleft = USE_LEFT(svl); | |
| 28e5dec8 | 1629 | #ifdef PERL_PRESERVE_IVUV |
| 7dca457a NC |
1630 | /* See comments in pp_add (in pp_hot.c) about Overflow, and how |
| 1631 | "bad things" happen if you rely on signed integers wrapping. */ | |
| 800401ee JH |
1632 | SvIV_please(svr); |
| 1633 | if (SvIOK(svr)) { | |
| 28e5dec8 JH |
1634 | /* Unless the left argument is integer in range we are going to have to |
| 1635 | use NV maths. Hence only attempt to coerce the right argument if | |
| 1636 | we know the left is integer. */ | |
| 9c5ffd7c JH |
1637 | register UV auv = 0; |
| 1638 | bool auvok = FALSE; | |
| 7dca457a NC |
1639 | bool a_valid = 0; |
| 1640 | ||
| 28e5dec8 | 1641 | if (!useleft) { |
| 7dca457a NC |
1642 | auv = 0; |
| 1643 | a_valid = auvok = 1; | |
| 1644 | /* left operand is undef, treat as zero. */ | |
| 28e5dec8 JH |
1645 | } else { |
| 1646 | /* Left operand is defined, so is it IV? */ | |
| 800401ee JH |
1647 | SvIV_please(svl); |
| 1648 | if (SvIOK(svl)) { | |
| 1649 | if ((auvok = SvUOK(svl))) | |
| 1650 | auv = SvUVX(svl); | |
| 7dca457a | 1651 | else { |
| 800401ee | 1652 | register const IV aiv = SvIVX(svl); |
| 7dca457a NC |
1653 | if (aiv >= 0) { |
| 1654 | auv = aiv; | |
| 1655 | auvok = 1; /* Now acting as a sign flag. */ | |
| 1656 | } else { /* 2s complement assumption for IV_MIN */ | |
| 1657 | auv = (UV)-aiv; | |
| 28e5dec8 | 1658 | } |
| 7dca457a NC |
1659 | } |
| 1660 | a_valid = 1; | |
| 1661 | } | |
| 1662 | } | |
| 1663 | if (a_valid) { | |
| 1664 | bool result_good = 0; | |
| 1665 | UV result; | |
| 1666 | register UV buv; | |
| 800401ee | 1667 | bool buvok = SvUOK(svr); |
| 9041c2e3 | 1668 | |
| 7dca457a | 1669 | if (buvok) |
| 800401ee | 1670 | buv = SvUVX(svr); |
| 7dca457a | 1671 | else { |
| 800401ee | 1672 | register const IV biv = SvIVX(svr); |
| 7dca457a NC |
1673 | if (biv >= 0) { |
| 1674 | buv = biv; | |
| 1675 | buvok = 1; | |
| 1676 | } else | |
| 1677 | buv = (UV)-biv; | |
| 1678 | } | |
| 1679 | /* ?uvok if value is >= 0. basically, flagged as UV if it's +ve, | |
| 602f51c4 | 1680 | else "IV" now, independent of how it came in. |
| 7dca457a NC |
1681 | if a, b represents positive, A, B negative, a maps to -A etc |
| 1682 | a - b => (a - b) | |
| 1683 | A - b => -(a + b) | |
| 1684 | a - B => (a + b) | |
| 1685 | A - B => -(a - b) | |
| 1686 | all UV maths. negate result if A negative. | |
| 1687 | subtract if signs same, add if signs differ. */ | |
| 1688 | ||
| 1689 | if (auvok ^ buvok) { | |
| 1690 | /* Signs differ. */ | |
| 1691 | result = auv + buv; | |
| 1692 | if (result >= auv) | |
| 1693 | result_good = 1; | |
| 1694 | } else { | |
| 1695 | /* Signs same */ | |
| 1696 | if (auv >= buv) { | |
| 1697 | result = auv - buv; | |
| 1698 | /* Must get smaller */ | |
| 1699 | if (result <= auv) | |
| 1700 | result_good = 1; | |
| 1701 | } else { | |
| 1702 | result = buv - auv; | |
| 1703 | if (result <= buv) { | |
| 1704 | /* result really should be -(auv-buv). as its negation | |
| 1705 | of true value, need to swap our result flag */ | |
| 1706 | auvok = !auvok; | |
| 1707 | result_good = 1; | |
| 28e5dec8 | 1708 | } |
| 28e5dec8 JH |
1709 | } |
| 1710 | } | |
| 7dca457a NC |
1711 | if (result_good) { |
| 1712 | SP--; | |
| 1713 | if (auvok) | |
| 1714 | SETu( result ); | |
| 1715 | else { | |
| 1716 | /* Negate result */ | |
| 1717 | if (result <= (UV)IV_MIN) | |
| 1718 | SETi( -(IV)result ); | |
| 1719 | else { | |
| 1720 | /* result valid, but out of range for IV. */ | |
| 1721 | SETn( -(NV)result ); | |
| 1722 | } | |
| 1723 | } | |
| 1724 | RETURN; | |
| 1725 | } /* Overflow, drop through to NVs. */ | |
| 28e5dec8 JH |
1726 | } |
| 1727 | } | |
| 1728 | #endif | |
| a0d0e21e | 1729 | { |
| 4efa5a16 RD |
1730 | NV value = SvNV(svr); |
| 1731 | (void)POPs; | |
| 1732 | ||
| 28e5dec8 JH |
1733 | if (!useleft) { |
| 1734 | /* left operand is undef, treat as zero - value */ | |
| 1735 | SETn(-value); | |
| 1736 | RETURN; | |
| 1737 | } | |
| 4efa5a16 | 1738 | SETn( SvNV(svl) - value ); |
| 28e5dec8 | 1739 | RETURN; |
| 79072805 | 1740 | } |
| a0d0e21e | 1741 | } |
| 79072805 | 1742 | |
| a0d0e21e LW |
1743 | PP(pp_left_shift) |
| 1744 | { | |
| 97aff369 | 1745 | dVAR; dSP; dATARGET; tryAMAGICbin(lshift,opASSIGN); |
| a0d0e21e | 1746 | { |
| 1b6737cc | 1747 | const IV shift = POPi; |
| d0ba1bd2 | 1748 | if (PL_op->op_private & HINT_INTEGER) { |
| c445ea15 | 1749 | const IV i = TOPi; |
| 972b05a9 | 1750 | SETi(i << shift); |
| d0ba1bd2 JH |
1751 | } |
| 1752 | else { | |
| c445ea15 | 1753 | const UV u = TOPu; |
| 972b05a9 | 1754 | SETu(u << shift); |
| d0ba1bd2 | 1755 | } |
| 55497cff | 1756 | RETURN; |
| 79072805 | 1757 | } |
| a0d0e21e | 1758 | } |
| 79072805 | 1759 | |
| a0d0e21e LW |
1760 | PP(pp_right_shift) |
| 1761 | { | |
| 97aff369 | 1762 | dVAR; dSP; dATARGET; tryAMAGICbin(rshift,opASSIGN); |
| a0d0e21e | 1763 | { |
| 1b6737cc | 1764 | const IV shift = POPi; |
| d0ba1bd2 | 1765 | if (PL_op->op_private & HINT_INTEGER) { |
| 0bd48802 | 1766 | const IV i = TOPi; |
| 972b05a9 | 1767 | SETi(i >> shift); |
| d0ba1bd2 JH |
1768 | } |
| 1769 | else { | |
| 0bd48802 | 1770 | const UV u = TOPu; |
| 972b05a9 | 1771 | SETu(u >> shift); |
| d0ba1bd2 | 1772 | } |
| a0d0e21e | 1773 | RETURN; |
| 93a17b20 | 1774 | } |
| 79072805 LW |
1775 | } |
| 1776 | ||
| a0d0e21e | 1777 | PP(pp_lt) |
| 79072805 | 1778 | { |
| 97aff369 | 1779 | dVAR; dSP; tryAMAGICbinSET(lt,0); |
| 28e5dec8 JH |
1780 | #ifdef PERL_PRESERVE_IVUV |
| 1781 | SvIV_please(TOPs); | |
| 1782 | if (SvIOK(TOPs)) { | |
| 1783 | SvIV_please(TOPm1s); | |
| 1784 | if (SvIOK(TOPm1s)) { | |
| 1785 | bool auvok = SvUOK(TOPm1s); | |
| 1786 | bool buvok = SvUOK(TOPs); | |
| a227d84d | 1787 | |
| 28e5dec8 | 1788 | if (!auvok && !buvok) { /* ## IV < IV ## */ |
| 1b6737cc AL |
1789 | const IV aiv = SvIVX(TOPm1s); |
| 1790 | const IV biv = SvIVX(TOPs); | |
| 28e5dec8 JH |
1791 | |
| 1792 | SP--; | |
| 1793 | SETs(boolSV(aiv < biv)); | |
| 1794 | RETURN; | |
| 1795 | } | |
| 1796 | if (auvok && buvok) { /* ## UV < UV ## */ | |
| 1b6737cc AL |
1797 | const UV auv = SvUVX(TOPm1s); |
| 1798 | const UV buv = SvUVX(TOPs); | |
| 28e5dec8 JH |
1799 | |
| 1800 | SP--; | |
| 1801 | SETs(boolSV(auv < buv)); | |
| 1802 | RETURN; | |
| 1803 | } | |
| 1804 | if (auvok) { /* ## UV < IV ## */ | |
| 1805 | UV auv; | |
| 1b6737cc | 1806 | const IV biv = SvIVX(TOPs); |
| 28e5dec8 JH |
1807 | SP--; |
| 1808 | if (biv < 0) { | |
| 1809 | /* As (a) is a UV, it's >=0, so it cannot be < */ | |
| 1810 | SETs(&PL_sv_no); | |
| 1811 | RETURN; | |
| 1812 | } | |
| 1813 | auv = SvUVX(TOPs); | |
| 28e5dec8 JH |
1814 | SETs(boolSV(auv < (UV)biv)); |
| 1815 | RETURN; | |
| 1816 | } | |
| 1817 | { /* ## IV < UV ## */ | |
| 1b6737cc | 1818 | const IV aiv = SvIVX(TOPm1s); |
| 28e5dec8 JH |
1819 | UV buv; |
| 1820 | ||
| 28e5dec8 JH |
1821 | if (aiv < 0) { |
| 1822 | /* As (b) is a UV, it's >=0, so it must be < */ | |
| 1823 | SP--; | |
| 1824 | SETs(&PL_sv_yes); | |
| 1825 | RETURN; | |
| 1826 | } | |
| 1827 | buv = SvUVX(TOPs); | |
| 1828 | SP--; | |
| 28e5dec8 JH |
1829 | SETs(boolSV((UV)aiv < buv)); |
| 1830 | RETURN; | |
| 1831 | } | |
| 1832 | } | |
| 1833 | } | |
| 1834 | #endif | |
| 30de85b6 | 1835 | #ifndef NV_PRESERVES_UV |
| 50fb3111 NC |
1836 | #ifdef PERL_PRESERVE_IVUV |
| 1837 | else | |
| 1838 | #endif | |
| 0bdaccee NC |
1839 | if (SvROK(TOPs) && !SvAMAGIC(TOPs) && SvROK(TOPm1s) && !SvAMAGIC(TOPm1s)) { |
| 1840 | SP--; | |
| 1841 | SETs(boolSV(SvRV(TOPs) < SvRV(TOPp1s))); | |
| 1842 | RETURN; | |
| 1843 | } | |
| 30de85b6 | 1844 | #endif |
| a0d0e21e | 1845 | { |
| cab190d4 JD |
1846 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
| 1847 | dPOPTOPnnrl; | |
| 1848 | if (Perl_isnan(left) || Perl_isnan(right)) | |
| 1849 | RETSETNO; | |
| 1850 | SETs(boolSV(left < right)); | |
| 1851 | #else | |
| a0d0e21e | 1852 | dPOPnv; |
| 54310121 | 1853 | SETs(boolSV(TOPn < value)); |
| cab190d4 | 1854 | #endif |
| a0d0e21e | 1855 | RETURN; |
| 79072805 | 1856 | } |
| a0d0e21e | 1857 | } |
| 79072805 | 1858 | |
| a0d0e21e LW |
1859 | PP(pp_gt) |
| 1860 | { | |
| 97aff369 | 1861 | dVAR; dSP; tryAMAGICbinSET(gt,0); |
| 28e5dec8 JH |
1862 | #ifdef PERL_PRESERVE_IVUV |
| 1863 | SvIV_please(TOPs); | |
| 1864 | if (SvIOK(TOPs)) { | |
| 1865 | SvIV_please(TOPm1s); | |
| 1866 | if (SvIOK(TOPm1s)) { | |
| 1867 | bool auvok = SvUOK(TOPm1s); | |
| 1868 | bool buvok = SvUOK(TOPs); | |
| a227d84d | 1869 | |
| 28e5dec8 | 1870 | if (!auvok && !buvok) { /* ## IV > IV ## */ |
| 1b6737cc AL |
1871 | const IV aiv = SvIVX(TOPm1s); |
| 1872 | const IV biv = SvIVX(TOPs); | |
| 1873 | ||
| 28e5dec8 JH |
1874 | SP--; |
| 1875 | SETs(boolSV(aiv > biv)); | |
| 1876 | RETURN; | |
| 1877 | } | |
| 1878 | if (auvok && buvok) { /* ## UV > UV ## */ | |
| 1b6737cc AL |
1879 | const UV auv = SvUVX(TOPm1s); |
| 1880 | const UV buv = SvUVX(TOPs); | |
| 28e5dec8 JH |
1881 | |
| 1882 | SP--; | |
| 1883 | SETs(boolSV(auv > buv)); | |
| 1884 | RETURN; | |
| 1885 | } | |
| 1886 | if (auvok) { /* ## UV > IV ## */ | |
| 1887 | UV auv; | |
| 1b6737cc AL |
1888 | const IV biv = SvIVX(TOPs); |
| 1889 | ||
| 28e5dec8 JH |
1890 | SP--; |
| 1891 | if (biv < 0) { | |
| 1892 | /* As (a) is a UV, it's >=0, so it must be > */ | |
| 1893 | SETs(&PL_sv_yes); | |
| 1894 | RETURN; | |
| 1895 | } | |
| 1896 | auv = SvUVX(TOPs); | |
| 28e5dec8 JH |
1897 | SETs(boolSV(auv > (UV)biv)); |
| 1898 | RETURN; | |
| 1899 | } | |
| 1900 | { /* ## IV > UV ## */ | |
| 1b6737cc | 1901 | const IV aiv = SvIVX(TOPm1s); |
| 28e5dec8 JH |
1902 | UV buv; |
| 1903 | ||
| 28e5dec8 JH |
1904 | if (aiv < 0) { |
| 1905 | /* As (b) is a UV, it's >=0, so it cannot be > */ | |
| 1906 | SP--; | |
| 1907 | SETs(&PL_sv_no); | |
| 1908 | RETURN; | |
| 1909 | } | |
| 1910 | buv = SvUVX(TOPs); | |
| 1911 | SP--; | |
| 28e5dec8 JH |
1912 | SETs(boolSV((UV)aiv > buv)); |
| 1913 | RETURN; | |
| 1914 | } | |
| 1915 | } | |
| 1916 | } | |
| 1917 | #endif | |
| 30de85b6 | 1918 | #ifndef NV_PRESERVES_UV |
| 50fb3111 NC |
1919 | #ifdef PERL_PRESERVE_IVUV |
| 1920 | else | |
| 1921 | #endif | |
| 0bdaccee | 1922 | if (SvROK(TOPs) && !SvAMAGIC(TOPs) && SvROK(TOPm1s) && !SvAMAGIC(TOPm1s)) { |
| 30de85b6 NC |
1923 | SP--; |
| 1924 | SETs(boolSV(SvRV(TOPs) > SvRV(TOPp1s))); | |
| 1925 | RETURN; | |
| 1926 | } | |
| 1927 | #endif | |
| a0d0e21e | 1928 | { |
| cab190d4 JD |
1929 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
| 1930 | dPOPTOPnnrl; | |
| 1931 | if (Perl_isnan(left) || Perl_isnan(right)) | |
| 1932 | RETSETNO; | |
| 1933 | SETs(boolSV(left > right)); | |
| 1934 | #else | |
| a0d0e21e | 1935 | dPOPnv; |
| 54310121 | 1936 | SETs(boolSV(TOPn > value)); |
| cab190d4 | 1937 | #endif |
| a0d0e21e | 1938 | RETURN; |
| 79072805 | 1939 | } |
| a0d0e21e LW |
1940 | } |
| 1941 | ||
| 1942 | PP(pp_le) | |
| 1943 | { | |
| 97aff369 | 1944 | dVAR; dSP; tryAMAGICbinSET(le,0); |
| 28e5dec8 JH |
1945 | #ifdef PERL_PRESERVE_IVUV |
| 1946 | SvIV_please(TOPs); | |
| 1947 | if (SvIOK(TOPs)) { | |
| 1948 | SvIV_please(TOPm1s); | |
| 1949 | if (SvIOK(TOPm1s)) { | |
| 1950 | bool auvok = SvUOK(TOPm1s); | |
| 1951 | bool buvok = SvUOK(TOPs); | |
| a227d84d | 1952 | |
| 28e5dec8 | 1953 | if (!auvok && !buvok) { /* ## IV <= IV ## */ |
| 1b6737cc AL |
1954 | const IV aiv = SvIVX(TOPm1s); |
| 1955 | const IV biv = SvIVX(TOPs); | |
| 28e5dec8 JH |
1956 | |
| 1957 | SP--; | |
| 1958 | SETs(boolSV(aiv <= biv)); | |
| 1959 | RETURN; | |
| 1960 | } | |
| 1961 | if (auvok && buvok) { /* ## UV <= UV ## */ | |
| 1962 | UV auv = SvUVX(TOPm1s); | |
| 1963 | UV buv = SvUVX(TOPs); | |
| 1964 | ||
| 1965 | SP--; | |
| 1966 | SETs(boolSV(auv <= buv)); | |
| 1967 | RETURN; | |
| 1968 | } | |
| 1969 | if (auvok) { /* ## UV <= IV ## */ | |
| 1970 | UV auv; | |
| 1b6737cc AL |
1971 | const IV biv = SvIVX(TOPs); |
| 1972 | ||
| 28e5dec8 JH |
1973 | SP--; |
| 1974 | if (biv < 0) { | |
| 1975 | /* As (a) is a UV, it's >=0, so a cannot be <= */ | |
| 1976 | SETs(&PL_sv_no); | |
| 1977 | RETURN; | |
| 1978 | } | |
| 1979 | auv = SvUVX(TOPs); | |
| 28e5dec8 JH |
1980 | SETs(boolSV(auv <= (UV)biv)); |
| 1981 | RETURN; | |
| 1982 | } | |
| 1983 | { /* ## IV <= UV ## */ | |
| 1b6737cc | 1984 | const IV aiv = SvIVX(TOPm1s); |
| 28e5dec8 | 1985 | UV buv; |
| 1b6737cc | 1986 | |
| 28e5dec8 JH |
1987 | if (aiv < 0) { |
| 1988 | /* As (b) is a UV, it's >=0, so a must be <= */ | |
| 1989 | SP--; | |
| 1990 | SETs(&PL_sv_yes); | |
| 1991 | RETURN; | |
| 1992 | } | |
| 1993 | buv = SvUVX(TOPs); | |
| 1994 | SP--; | |
| 28e5dec8 JH |
1995 | SETs(boolSV((UV)aiv <= buv)); |
| 1996 | RETURN; | |
| 1997 | } | |
| 1998 | } | |
| 1999 | } | |
| 2000 | #endif | |
| 30de85b6 | 2001 | #ifndef NV_PRESERVES_UV |
| 50fb3111 NC |
2002 | #ifdef PERL_PRESERVE_IVUV |
| 2003 | else | |
| 2004 | #endif | |
| 0bdaccee | 2005 | if (SvROK(TOPs) && !SvAMAGIC(TOPs) && SvROK(TOPm1s) && !SvAMAGIC(TOPm1s)) { |
| 30de85b6 NC |
2006 | SP--; |
| 2007 | SETs(boolSV(SvRV(TOPs) <= SvRV(TOPp1s))); | |
| 2008 | RETURN; | |
| 2009 | } | |
| 2010 | #endif | |
| a0d0e21e | 2011 | { |
| cab190d4 JD |
2012 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
| 2013 | dPOPTOPnnrl; | |
| 2014 | if (Perl_isnan(left) || Perl_isnan(right)) | |
| 2015 | RETSETNO; | |
| 2016 | SETs(boolSV(left <= right)); | |
| 2017 | #else | |
| a0d0e21e | 2018 | dPOPnv; |
| 54310121 | 2019 | SETs(boolSV(TOPn <= value)); |
| cab190d4 | 2020 | #endif |
| a0d0e21e | 2021 | RETURN; |
| 79072805 | 2022 | } |
| a0d0e21e LW |
2023 | } |
| 2024 | ||
| 2025 | PP(pp_ge) | |
| 2026 | { | |
| 97aff369 | 2027 | dVAR; dSP; tryAMAGICbinSET(ge,0); |
| 28e5dec8 JH |
2028 | #ifdef PERL_PRESERVE_IVUV |
| 2029 | SvIV_please(TOPs); | |
| 2030 | if (SvIOK(TOPs)) { | |
| 2031 | SvIV_please(TOPm1s); | |
| 2032 | if (SvIOK(TOPm1s)) { | |
| 2033 | bool auvok = SvUOK(TOPm1s); | |
| 2034 | bool buvok = SvUOK(TOPs); | |
| a227d84d | 2035 | |
| 28e5dec8 | 2036 | if (!auvok && !buvok) { /* ## IV >= IV ## */ |
| 1b6737cc AL |
2037 | const IV aiv = SvIVX(TOPm1s); |
| 2038 | const IV biv = SvIVX(TOPs); | |
| 2039 | ||
| 28e5dec8 JH |
2040 | SP--; |
| 2041 | SETs(boolSV(aiv >= biv)); | |
| 2042 | RETURN; | |
| 2043 | } | |
| 2044 | if (auvok && buvok) { /* ## UV >= UV ## */ | |
| 1b6737cc AL |
2045 | const UV auv = SvUVX(TOPm1s); |
| 2046 | const UV buv = SvUVX(TOPs); | |
| 2047 | ||
| 28e5dec8 JH |
2048 | SP--; |
| 2049 | SETs(boolSV(auv >= buv)); | |
| 2050 | RETURN; | |
| 2051 | } | |
| 2052 | if (auvok) { /* ## UV >= IV ## */ | |
| 2053 | UV auv; | |
| 1b6737cc AL |
2054 | const IV biv = SvIVX(TOPs); |
| 2055 | ||
| 28e5dec8 JH |
2056 | SP--; |
| 2057 | if (biv < 0) { | |
| 2058 | /* As (a) is a UV, it's >=0, so it must be >= */ | |
| 2059 | SETs(&PL_sv_yes); | |
| 2060 | RETURN; | |
| 2061 | } | |
| 2062 | auv = SvUVX(TOPs); | |
| 28e5dec8 JH |
2063 | SETs(boolSV(auv >= (UV)biv)); |
| 2064 | RETURN; | |
| 2065 | } | |
| 2066 | { /* ## IV >= UV ## */ | |
| 1b6737cc | 2067 | const IV aiv = SvIVX(TOPm1s); |
| 28e5dec8 | 2068 | UV buv; |
| 1b6737cc | 2069 | |
| 28e5dec8 JH |
2070 | if (aiv < 0) { |
| 2071 | /* As (b) is a UV, it's >=0, so a cannot be >= */ | |
| 2072 | SP--; | |
| 2073 | SETs(&PL_sv_no); | |
| 2074 | RETURN; | |
| 2075 | } | |
| 2076 | buv = SvUVX(TOPs); | |
| 2077 | SP--; | |
| 28e5dec8 JH |
2078 | SETs(boolSV((UV)aiv >= buv)); |
| 2079 | RETURN; | |
| 2080 | } | |
| 2081 | } | |
| 2082 | } | |
| 2083 | #endif | |
| 30de85b6 | 2084 | #ifndef NV_PRESERVES_UV |
| 50fb3111 NC |
2085 | #ifdef PERL_PRESERVE_IVUV |
| 2086 | else | |
| 2087 | #endif | |
| 0bdaccee | 2088 | if (SvROK(TOPs) && !SvAMAGIC(TOPs) && SvROK(TOPm1s) && !SvAMAGIC(TOPm1s)) { |
| 30de85b6 NC |
2089 | SP--; |
| 2090 | SETs(boolSV(SvRV(TOPs) >= SvRV(TOPp1s))); | |
| 2091 | RETURN; | |
| 2092 | } | |
| 2093 | #endif | |
| a0d0e21e | 2094 | { |
| cab190d4 JD |
2095 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
| 2096 | dPOPTOPnnrl; | |
| 2097 | if (Perl_isnan(left) || Perl_isnan(right)) | |
| 2098 | RETSETNO; | |
| 2099 | SETs(boolSV(left >= right)); | |
| 2100 | #else | |
| a0d0e21e | 2101 | dPOPnv; |
| 54310121 | 2102 | SETs(boolSV(TOPn >= value)); |
| cab190d4 | 2103 | #endif |
| a0d0e21e | 2104 | RETURN; |
| 79072805 | 2105 | } |
| a0d0e21e | 2106 | } |
| 79072805 | 2107 | |
| a0d0e21e LW |
2108 | PP(pp_ne) |
| 2109 | { | |
| 97aff369 | 2110 | dVAR; dSP; tryAMAGICbinSET(ne,0); |
| 3bb2c415 | 2111 | #ifndef NV_PRESERVES_UV |
| 0bdaccee | 2112 | if (SvROK(TOPs) && !SvAMAGIC(TOPs) && SvROK(TOPm1s) && !SvAMAGIC(TOPm1s)) { |
| e61d22ef NC |
2113 | SP--; |
| 2114 | SETs(boolSV(SvRV(TOPs) != SvRV(TOPp1s))); | |
| 3bb2c415 JH |
2115 | RETURN; |
| 2116 | } | |
| 2117 | #endif | |
| 28e5dec8 JH |
2118 | #ifdef PERL_PRESERVE_IVUV |
| 2119 | SvIV_please(TOPs); | |
| 2120 | if (SvIOK(TOPs)) { | |
| 2121 | SvIV_please(TOPm1s); | |
| 2122 | if (SvIOK(TOPm1s)) { | |
| 0bd48802 AL |
2123 | const bool auvok = SvUOK(TOPm1s); |
| 2124 | const bool buvok = SvUOK(TOPs); | |
| a227d84d | 2125 | |
| 30de85b6 NC |
2126 | if (auvok == buvok) { /* ## IV == IV or UV == UV ## */ |
| 2127 | /* Casting IV to UV before comparison isn't going to matter | |
| 2128 | on 2s complement. On 1s complement or sign&magnitude | |
| 2129 | (if we have any of them) it could make negative zero | |
| 2130 | differ from normal zero. As I understand it. (Need to | |
| 2131 | check - is negative zero implementation defined behaviour | |
| 2132 | anyway?). NWC */ | |
| 1b6737cc AL |
2133 | const UV buv = SvUVX(POPs); |
| 2134 | const UV auv = SvUVX(TOPs); | |
| 2135 | ||
| 28e5dec8 JH |
2136 | SETs(boolSV(auv != buv)); |
| 2137 | RETURN; | |
| 2138 | } | |
| 2139 | { /* ## Mixed IV,UV ## */ | |
| 2140 | IV iv; | |
| 2141 | UV uv; | |
| 2142 | ||
| 2143 | /* != is commutative so swap if needed (save code) */ | |
| 2144 | if (auvok) { | |
| 2145 | /* swap. top of stack (b) is the iv */ | |
| 2146 | iv = SvIVX(TOPs); | |
| 2147 | SP--; | |
| 2148 | if (iv < 0) { | |
| 2149 | /* As (a) is a UV, it's >0, so it cannot be == */ | |
| 2150 | SETs(&PL_sv_yes); | |
| 2151 | RETURN; | |
| 2152 | } | |
| 2153 | uv = SvUVX(TOPs); | |
| 2154 | } else { | |
| 2155 | iv = SvIVX(TOPm1s); | |
| 2156 | SP--; | |
| 2157 | if (iv < 0) { | |
| 2158 | /* As (b) is a UV, it's >0, so it cannot be == */ | |
| 2159 | SETs(&PL_sv_yes); | |
| 2160 | RETURN; | |
| 2161 | } | |
| 2162 | uv = SvUVX(*(SP+1)); /* Do I want TOPp1s() ? */ | |
| 2163 | } | |
| 28e5dec8 JH |
2164 | SETs(boolSV((UV)iv != uv)); |
| 2165 | RETURN; | |
| 2166 | } | |
| 2167 | } | |
| 2168 | } | |
| 2169 | #endif | |
| a0d0e21e | 2170 | { |
| cab190d4 JD |
2171 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
| 2172 | dPOPTOPnnrl; | |
| 2173 | if (Perl_isnan(left) || Perl_isnan(right)) | |
| 2174 | RETSETYES; | |
| 2175 | SETs(boolSV(left != right)); | |
| 2176 | #else | |
| a0d0e21e | 2177 | dPOPnv; |
| 54310121 | 2178 | SETs(boolSV(TOPn != value)); |
| cab190d4 | 2179 | #endif |
| a0d0e21e LW |
2180 | RETURN; |
| 2181 | } | |
| 79072805 LW |
2182 | } |
| 2183 | ||
| a0d0e21e | 2184 | PP(pp_ncmp) |
| 79072805 | 2185 | { |
| 97aff369 | 2186 | dVAR; dSP; dTARGET; tryAMAGICbin(ncmp,0); |
| d8c7644e | 2187 | #ifndef NV_PRESERVES_UV |
| 0bdaccee | 2188 | if (SvROK(TOPs) && !SvAMAGIC(TOPs) && SvROK(TOPm1s) && !SvAMAGIC(TOPm1s)) { |
| 0bd48802 AL |
2189 | const UV right = PTR2UV(SvRV(POPs)); |
| 2190 | const UV left = PTR2UV(SvRV(TOPs)); | |
| e61d22ef | 2191 | SETi((left > right) - (left < right)); |
| d8c7644e JH |
2192 | RETURN; |
| 2193 | } | |
| 2194 | #endif | |
| 28e5dec8 JH |
2195 | #ifdef PERL_PRESERVE_IVUV |
| 2196 | /* Fortunately it seems NaN isn't IOK */ | |
| 2197 | SvIV_please(TOPs); | |
| 2198 | if (SvIOK(TOPs)) { | |
| 2199 | SvIV_please(TOPm1s); | |
| 2200 | if (SvIOK(TOPm1s)) { | |
| 1b6737cc AL |
2201 | const bool leftuvok = SvUOK(TOPm1s); |
| 2202 | const bool rightuvok = SvUOK(TOPs); | |
| 28e5dec8 JH |
2203 | I32 value; |
| 2204 | if (!leftuvok && !rightuvok) { /* ## IV <=> IV ## */ | |
| 1b6737cc AL |
2205 | const IV leftiv = SvIVX(TOPm1s); |
| 2206 | const IV rightiv = SvIVX(TOPs); | |
| 28e5dec8 JH |
2207 | |
| 2208 | if (leftiv > rightiv) | |
| 2209 | value = 1; | |
| 2210 | else if (leftiv < rightiv) | |
| 2211 | value = -1; | |
| 2212 | else | |
| 2213 | value = 0; | |
| 2214 | } else if (leftuvok && rightuvok) { /* ## UV <=> UV ## */ | |
| 1b6737cc AL |
2215 | const UV leftuv = SvUVX(TOPm1s); |
| 2216 | const UV rightuv = SvUVX(TOPs); | |
| 28e5dec8 JH |
2217 | |
| 2218 | if (leftuv > rightuv) | |
| 2219 | value = 1; | |
| 2220 | else if (leftuv < rightuv) | |
| 2221 | value = -1; | |
| 2222 | else | |
| 2223 | value = 0; | |
| 2224 | } else if (leftuvok) { /* ## UV <=> IV ## */ | |
| 1b6737cc | 2225 | const IV rightiv = SvIVX(TOPs); |
| 28e5dec8 JH |
2226 | if (rightiv < 0) { |
| 2227 | /* As (a) is a UV, it's >=0, so it cannot be < */ | |
| 2228 | value = 1; | |
| 2229 | } else { | |
| 1b6737cc | 2230 | const UV leftuv = SvUVX(TOPm1s); |
| 83bac5dd | 2231 | if (leftuv > (UV)rightiv) { |
| 28e5dec8 JH |
2232 | value = 1; |
| 2233 | } else if (leftuv < (UV)rightiv) { | |
| 2234 | value = -1; | |
| 2235 | } else { | |
| 2236 | value = 0; | |
| 2237 | } | |
| 2238 | } | |
| 2239 | } else { /* ## IV <=> UV ## */ | |
| 1b6737cc | 2240 | const IV leftiv = SvIVX(TOPm1s); |
| 28e5dec8 JH |
2241 | if (leftiv < 0) { |
| 2242 | /* As (b) is a UV, it's >=0, so it must be < */ | |
| 2243 | value = -1; | |
| 2244 | } else { | |
| 1b6737cc | 2245 | const UV rightuv = SvUVX(TOPs); |
| 83bac5dd | 2246 | if ((UV)leftiv > rightuv) { |
| 28e5dec8 | 2247 | value = 1; |
| 83bac5dd | 2248 | } else if ((UV)leftiv < rightuv) { |
| 28e5dec8 JH |
2249 | value = -1; |
| 2250 | } else { | |
| 2251 | value = 0; | |
| 2252 | } | |
| 2253 | } | |
| 2254 | } | |
| 2255 | SP--; | |
| 2256 | SETi(value); | |
| 2257 | RETURN; | |
| 2258 | } | |
| 2259 | } | |
| 2260 | #endif | |
| a0d0e21e LW |
2261 | { |
| 2262 | dPOPTOPnnrl; | |
| 2263 | I32 value; | |
| 79072805 | 2264 | |
| a3540c92 | 2265 | #ifdef Perl_isnan |
| 1ad04cfd JH |
2266 | if (Perl_isnan(left) || Perl_isnan(right)) { |
| 2267 | SETs(&PL_sv_undef); | |
| 2268 | RETURN; | |
| 2269 | } | |
| 2270 | value = (left > right) - (left < right); | |
| 2271 | #else | |
| ff0cee69 | 2272 | if (left == right) |
| a0d0e21e | 2273 | value = 0; |
| a0d0e21e LW |
2274 | else if (left < right) |
| 2275 | value = -1; | |
| 44a8e56a | 2276 | else if (left > right) |
| 2277 | value = 1; | |
| 2278 | else { | |
| 3280af22 | 2279 | SETs(&PL_sv_undef); |
| 44a8e56a | 2280 | RETURN; |
| 2281 | } | |
| 1ad04cfd | 2282 | #endif |
| a0d0e21e LW |
2283 | SETi(value); |
| 2284 | RETURN; | |
| 79072805 | 2285 | } |
| a0d0e21e | 2286 | } |
| 79072805 | 2287 | |
| afd9910b | 2288 | PP(pp_sle) |
| a0d0e21e | 2289 | { |
| 97aff369 | 2290 | dVAR; dSP; |
| 79072805 | 2291 | |
| afd9910b NC |
2292 | int amg_type = sle_amg; |
| 2293 | int multiplier = 1; | |
| 2294 | int rhs = 1; | |
| 79072805 | 2295 | |
| afd9910b NC |
2296 | switch (PL_op->op_type) { |
| 2297 | case OP_SLT: | |
| 2298 | amg_type = slt_amg; | |
| 2299 | /* cmp < 0 */ | |
| 2300 | rhs = 0; | |
| 2301 | break; | |
| 2302 | case OP_SGT: | |
| 2303 | amg_type = sgt_amg; | |
| 2304 | /* cmp > 0 */ | |
| 2305 | multiplier = -1; | |
| 2306 | rhs = 0; | |
| 2307 | break; | |
| 2308 | case OP_SGE: | |
| 2309 | amg_type = sge_amg; | |
| 2310 | /* cmp >= 0 */ | |
| 2311 | multiplier = -1; | |
| 2312 | break; | |
| 79072805 | 2313 | } |
| 79072805 | 2314 | |
| afd9910b | 2315 | tryAMAGICbinSET_var(amg_type,0); |
| a0d0e21e LW |
2316 | { |
| 2317 | dPOPTOPssrl; | |
| 1b6737cc | 2318 | const int cmp = (IN_LOCALE_RUNTIME |
| bbce6d69 | 2319 | ? sv_cmp_locale(left, right) |
| 2320 | : sv_cmp(left, right)); | |
| afd9910b | 2321 | SETs(boolSV(cmp * multiplier < rhs)); |
| a0d0e21e LW |
2322 | RETURN; |
| 2323 | } | |
| 2324 | } | |
| 79072805 | 2325 | |
| 36477c24 | 2326 | PP(pp_seq) |
| 2327 | { | |
| 97aff369 | 2328 | dVAR; dSP; tryAMAGICbinSET(seq,0); |
| 36477c24 | 2329 | { |
| 2330 | dPOPTOPssrl; | |
| 54310121 | 2331 | SETs(boolSV(sv_eq(left, right))); |
| a0d0e21e LW |
2332 | RETURN; |
| 2333 | } | |
| 2334 | } | |
| 79072805 | 2335 | |
| a0d0e21e | 2336 | PP(pp_sne) |
| 79072805 | 2337 | { |
| 97aff369 | 2338 | dVAR; dSP; tryAMAGICbinSET(sne,0); |
| a0d0e21e LW |
2339 | { |
| 2340 | dPOPTOPssrl; | |
| 54310121 | 2341 | SETs(boolSV(!sv_eq(left, right))); |
| a0d0e21e | 2342 | RETURN; |
| 463ee0b2 | 2343 | } |
| 79072805 LW |
2344 | } |
| 2345 | ||
| a0d0e21e | 2346 | PP(pp_scmp) |
| 79072805 | 2347 | { |
| 97aff369 | 2348 | dVAR; dSP; dTARGET; tryAMAGICbin(scmp,0); |
| a0d0e21e LW |
2349 | { |
| 2350 | dPOPTOPssrl; | |
| 1b6737cc | 2351 | const int cmp = (IN_LOCALE_RUNTIME |
| bbce6d69 | 2352 | ? sv_cmp_locale(left, right) |
| 2353 | : sv_cmp(left, right)); | |
| 2354 | SETi( cmp ); | |
| a0d0e21e LW |
2355 | RETURN; |
| 2356 | } | |
| 2357 | } | |
| 79072805 | 2358 | |
| 55497cff | 2359 | PP(pp_bit_and) |
| 2360 | { | |
| 97aff369 | 2361 | dVAR; dSP; dATARGET; tryAMAGICbin(band,opASSIGN); |
| a0d0e21e LW |
2362 | { |
| 2363 | dPOPTOPssrl; | |
| 5b295bef RD |
2364 | SvGETMAGIC(left); |
| 2365 | SvGETMAGIC(right); | |
| 4633a7c4 | 2366 | if (SvNIOKp(left) || SvNIOKp(right)) { |
| d0ba1bd2 | 2367 | if (PL_op->op_private & HINT_INTEGER) { |
| 1b6737cc | 2368 | const IV i = SvIV_nomg(left) & SvIV_nomg(right); |
| 972b05a9 | 2369 | SETi(i); |
| d0ba1bd2 JH |
2370 | } |
| 2371 | else { | |
| 1b6737cc | 2372 | const UV u = SvUV_nomg(left) & SvUV_nomg(right); |
| 972b05a9 | 2373 | SETu(u); |
| d0ba1bd2 | 2374 | } |
| a0d0e21e LW |
2375 | } |
| 2376 | else { | |
| 533c011a | 2377 | do_vop(PL_op->op_type, TARG, left, right); |
| a0d0e21e LW |
2378 | SETTARG; |
| 2379 | } | |
| 2380 | RETURN; | |
| 2381 | } | |
| 2382 | } | |
| 79072805 | 2383 | |
| a0d0e21e LW |
2384 | PP(pp_bit_or) |
| 2385 | { | |
| 3658c1f1 NC |
2386 | dVAR; dSP; dATARGET; |
| 2387 | const int op_type = PL_op->op_type; | |
| 2388 | ||
| 2389 | tryAMAGICbin_var((op_type == OP_BIT_OR ? bor_amg : bxor_amg), opASSIGN); | |
| a0d0e21e LW |
2390 | { |
| 2391 | dPOPTOPssrl; | |
| 5b295bef RD |
2392 | SvGETMAGIC(left); |
| 2393 | SvGETMAGIC(right); | |
| 4633a7c4 | 2394 | if (SvNIOKp(left) || SvNIOKp(right)) { |
| d0ba1bd2 | 2395 | if (PL_op->op_private & HINT_INTEGER) { |
| 3658c1f1 NC |
2396 | const IV l = (USE_LEFT(left) ? SvIV_nomg(left) : 0); |
| 2397 | const IV r = SvIV_nomg(right); | |
| 2398 | const IV result = op_type == OP_BIT_OR ? (l | r) : (l ^ r); | |
| 2399 | SETi(result); | |
| d0ba1bd2 JH |
2400 | } |
| 2401 | else { | |
| 3658c1f1 NC |
2402 | const UV l = (USE_LEFT(left) ? SvUV_nomg(left) : 0); |
| 2403 | const UV r = SvUV_nomg(right); | |
| 2404 | const UV result = op_type == OP_BIT_OR ? (l | r) : (l ^ r); | |
| 2405 | SETu(result); | |
| d0ba1bd2 | 2406 | } |
| a0d0e21e LW |
2407 | } |
| 2408 | else { | |
| 3658c1f1 | 2409 | do_vop(op_type, TARG, left, right); |
| a0d0e21e LW |
2410 | SETTARG; |
| 2411 | } | |
| 2412 | RETURN; | |
| 79072805 | 2413 | } |
| a0d0e21e | 2414 | } |
| 79072805 | 2415 | |
| a0d0e21e LW |
2416 | PP(pp_negate) |
| 2417 | { | |
| 97aff369 | 2418 | dVAR; dSP; dTARGET; tryAMAGICun(neg); |
| a0d0e21e | 2419 | { |
| 800401ee | 2420 | SV * const sv = sv_2num(TOPs); |
| 1b6737cc | 2421 | const int flags = SvFLAGS(sv); |
| 5b295bef | 2422 | SvGETMAGIC(sv); |
| 28e5dec8 JH |
2423 | if ((flags & SVf_IOK) || ((flags & (SVp_IOK | SVp_NOK)) == SVp_IOK)) { |
| 2424 | /* It's publicly an integer, or privately an integer-not-float */ | |
| 2425 | oops_its_an_int: | |
| 9b0e499b GS |
2426 | if (SvIsUV(sv)) { |
| 2427 | if (SvIVX(sv) == IV_MIN) { | |
| 28e5dec8 | 2428 | /* 2s complement assumption. */ |
| 9b0e499b GS |
2429 | SETi(SvIVX(sv)); /* special case: -((UV)IV_MAX+1) == IV_MIN */ |
| 2430 | RETURN; | |
| 2431 | } | |
| 2432 | else if (SvUVX(sv) <= IV_MAX) { | |
| beccb14c | 2433 | SETi(-SvIVX(sv)); |
| 9b0e499b GS |
2434 | RETURN; |
| 2435 | } | |
| 2436 | } | |
| 2437 | else if (SvIVX(sv) != IV_MIN) { | |
| 2438 | SETi(-SvIVX(sv)); | |
| 2439 | RETURN; | |
| 2440 | } | |
| 28e5dec8 JH |
2441 | #ifdef PERL_PRESERVE_IVUV |
| 2442 | else { | |
| 2443 | SETu((UV)IV_MIN); | |
| 2444 | RETURN; | |
| 2445 | } | |
| 2446 | #endif | |
| 9b0e499b GS |
2447 | } |
| 2448 | if (SvNIOKp(sv)) | |
| a0d0e21e | 2449 | SETn(-SvNV(sv)); |
| 4633a7c4 | 2450 | else if (SvPOKp(sv)) { |
| a0d0e21e | 2451 | STRLEN len; |
| c445ea15 | 2452 | const char * const s = SvPV_const(sv, len); |
| bbce6d69 | 2453 | if (isIDFIRST(*s)) { |
| 76f68e9b | 2454 | sv_setpvs(TARG, "-"); |
| a0d0e21e | 2455 | sv_catsv(TARG, sv); |
| 79072805 | 2456 | } |
| a0d0e21e LW |
2457 | else if (*s == '+' || *s == '-') { |
| 2458 | sv_setsv(TARG, sv); | |
| 2459 | *SvPV_force(TARG, len) = *s == '-' ? '+' : '-'; | |
| 79072805 | 2460 | } |
| 8eb28a70 JH |
2461 | else if (DO_UTF8(sv)) { |
| 2462 | SvIV_please(sv); | |
| 2463 | if (SvIOK(sv)) | |
| 2464 | goto oops_its_an_int; | |
| 2465 | if (SvNOK(sv)) | |
| 2466 | sv_setnv(TARG, -SvNV(sv)); | |
| 2467 | else { | |
| 76f68e9b | 2468 | sv_setpvs(TARG, "-"); |
| 8eb28a70 JH |
2469 | sv_catsv(TARG, sv); |
| 2470 | } | |
| 834a4ddd | 2471 | } |
| 28e5dec8 | 2472 | else { |
| 8eb28a70 JH |
2473 | SvIV_please(sv); |
| 2474 | if (SvIOK(sv)) | |
| 2475 | goto oops_its_an_int; | |
| 2476 | sv_setnv(TARG, -SvNV(sv)); | |
| 28e5dec8 | 2477 | } |
| a0d0e21e | 2478 | SETTARG; |
| 79072805 | 2479 | } |
| 4633a7c4 LW |
2480 | else |
| 2481 | SETn(-SvNV(sv)); | |
| 79072805 | 2482 | } |
| a0d0e21e | 2483 | RETURN; |
| 79072805 LW |
2484 | } |
| 2485 | ||
| a0d0e21e | 2486 | PP(pp_not) |
| 79072805 | 2487 | { |
| 97aff369 | 2488 | dVAR; dSP; tryAMAGICunSET(not); |
| 3280af22 | 2489 | *PL_stack_sp = boolSV(!SvTRUE(*PL_stack_sp)); |
| a0d0e21e | 2490 | return NORMAL; |
| 79072805 LW |
2491 | } |
| 2492 | ||
| a0d0e21e | 2493 | PP(pp_complement) |
| 79072805 | 2494 | { |
| 97aff369 | 2495 | dVAR; dSP; dTARGET; tryAMAGICun(compl); |
| a0d0e21e LW |
2496 | { |
| 2497 | dTOPss; | |
| 5b295bef | 2498 | SvGETMAGIC(sv); |
| 4633a7c4 | 2499 | if (SvNIOKp(sv)) { |
| d0ba1bd2 | 2500 | if (PL_op->op_private & HINT_INTEGER) { |
| 1b6737cc | 2501 | const IV i = ~SvIV_nomg(sv); |
| 972b05a9 | 2502 | SETi(i); |
| d0ba1bd2 JH |
2503 | } |
| 2504 | else { | |
| 1b6737cc | 2505 | const UV u = ~SvUV_nomg(sv); |
| 972b05a9 | 2506 | SETu(u); |
| d0ba1bd2 | 2507 | } |
| a0d0e21e LW |
2508 | } |
| 2509 | else { | |
| 51723571 | 2510 | register U8 *tmps; |
| 55497cff | 2511 | register I32 anum; |
| a0d0e21e LW |
2512 | STRLEN len; |
| 2513 | ||
| 10516c54 | 2514 | (void)SvPV_nomg_const(sv,len); /* force check for uninit var */ |
| 891f9566 | 2515 | sv_setsv_nomg(TARG, sv); |
| 51723571 | 2516 | tmps = (U8*)SvPV_force(TARG, len); |
| a0d0e21e | 2517 | anum = len; |
| 1d68d6cd | 2518 | if (SvUTF8(TARG)) { |
| a1ca4561 | 2519 | /* Calculate exact length, let's not estimate. */ |
| 1d68d6cd | 2520 | STRLEN targlen = 0; |
| ba210ebe | 2521 | STRLEN l; |
| a1ca4561 YST |
2522 | UV nchar = 0; |
| 2523 | UV nwide = 0; | |
| 01f6e806 | 2524 | U8 * const send = tmps + len; |
| 74d49cd0 TS |
2525 | U8 * const origtmps = tmps; |
| 2526 | const UV utf8flags = UTF8_ALLOW_ANYUV; | |
| 1d68d6cd | 2527 | |
| 1d68d6cd | 2528 | while (tmps < send) { |
| 74d49cd0 TS |
2529 | const UV c = utf8n_to_uvchr(tmps, send-tmps, &l, utf8flags); |
| 2530 | tmps += l; | |
| 5bbb0b5a | 2531 | targlen += UNISKIP(~c); |
| a1ca4561 YST |
2532 | nchar++; |
| 2533 | if (c > 0xff) | |
| 2534 | nwide++; | |
| 1d68d6cd SC |
2535 | } |
| 2536 | ||
| 2537 | /* Now rewind strings and write them. */ | |
| 74d49cd0 | 2538 | tmps = origtmps; |
| a1ca4561 YST |
2539 | |
| 2540 | if (nwide) { | |
| 01f6e806 AL |
2541 | U8 *result; |
| 2542 | U8 *p; | |
| 2543 | ||
| 74d49cd0 | 2544 | Newx(result, targlen + 1, U8); |
| 01f6e806 | 2545 | p = result; |
| a1ca4561 | 2546 | while (tmps < send) { |
| 74d49cd0 TS |
2547 | const UV c = utf8n_to_uvchr(tmps, send-tmps, &l, utf8flags); |
| 2548 | tmps += l; | |
| 01f6e806 | 2549 | p = uvchr_to_utf8_flags(p, ~c, UNICODE_ALLOW_ANY); |
| a1ca4561 | 2550 | } |
| 01f6e806 | 2551 | *p = '\0'; |
| c1c21316 NC |
2552 | sv_usepvn_flags(TARG, (char*)result, targlen, |
| 2553 | SV_HAS_TRAILING_NUL); | |
| a1ca4561 YST |
2554 | SvUTF8_on(TARG); |
| 2555 | } | |
| 2556 | else { | |
| 01f6e806 AL |
2557 | U8 *result; |
| 2558 | U8 *p; | |
| 2559 | ||
| 74d49cd0 | 2560 | Newx(result, nchar + 1, U8); |
| 01f6e806 | 2561 | p = result; |
| a1ca4561 | 2562 | while (tmps < send) { |
| 74d49cd0 TS |
2563 | const U8 c = (U8)utf8n_to_uvchr(tmps, send-tmps, &l, utf8flags); |
| 2564 | tmps += l; | |
| 01f6e806 | 2565 | *p++ = ~c; |
| a1ca4561 | 2566 | } |
| 01f6e806 | 2567 | *p = '\0'; |
| c1c21316 | 2568 | sv_usepvn_flags(TARG, (char*)result, nchar, SV_HAS_TRAILING_NUL); |
| d0a21e00 | 2569 | SvUTF8_off(TARG); |
| 1d68d6cd | 2570 | } |
| ec93b65f | 2571 | SETTARG; |
| 1d68d6cd SC |
2572 | RETURN; |
| 2573 | } | |
| a0d0e21e | 2574 | #ifdef LIBERAL |
| 51723571 JH |
2575 | { |
| 2576 | register long *tmpl; | |
| 2577 | for ( ; anum && (unsigned long)tmps % sizeof(long); anum--, tmps++) | |
| 2578 | *tmps = ~*tmps; | |
| 2579 | tmpl = (long*)tmps; | |
| bb7a0f54 | 2580 | for ( ; anum >= (I32)sizeof(long); anum -= (I32)sizeof(long), tmpl++) |
| 51723571 JH |
2581 | *tmpl = ~*tmpl; |
| 2582 | tmps = (U8*)tmpl; | |
| 2583 | } | |
| a0d0e21e LW |
2584 | #endif |
| 2585 | for ( ; anum > 0; anum--, tmps++) | |
| 2586 | *tmps = ~*tmps; | |
| ec93b65f | 2587 | SETTARG; |
| a0d0e21e LW |
2588 | } |
| 2589 | RETURN; | |
| 2590 | } | |
| 79072805 LW |
2591 | } |
| 2592 | ||
| a0d0e21e LW |
2593 | /* integer versions of some of the above */ |
| 2594 | ||
| a0d0e21e | 2595 | PP(pp_i_multiply) |
| 79072805 | 2596 | { |
| 97aff369 | 2597 | dVAR; dSP; dATARGET; tryAMAGICbin(mult,opASSIGN); |
| a0d0e21e LW |
2598 | { |
| 2599 | dPOPTOPiirl; | |
| 2600 | SETi( left * right ); | |
| 2601 | RETURN; | |
| 2602 | } | |
| 79072805 LW |
2603 | } |
| 2604 | ||
| a0d0e21e | 2605 | PP(pp_i_divide) |
| 79072805 | 2606 | { |
| ece1bcef | 2607 | IV num; |
| 97aff369 | 2608 | dVAR; dSP; dATARGET; tryAMAGICbin(div,opASSIGN); |
| a0d0e21e LW |
2609 | { |
| 2610 | dPOPiv; | |
| 2611 | if (value == 0) | |
| ece1bcef SP |
2612 | DIE(aTHX_ "Illegal division by zero"); |
| 2613 | num = POPi; | |
| a0cec769 YST |
2614 | |
| 2615 | /* avoid FPE_INTOVF on some platforms when num is IV_MIN */ | |
| 2616 | if (value == -1) | |
| 2617 | value = - num; | |
| 2618 | else | |
| 2619 | value = num / value; | |
| a0d0e21e LW |
2620 | PUSHi( value ); |
| 2621 | RETURN; | |
| 2622 | } | |
| 79072805 LW |
2623 | } |
| 2624 | ||
| befad5d1 | 2625 | #if defined(__GLIBC__) && IVSIZE == 8 |
| 224ec323 JH |
2626 | STATIC |
| 2627 | PP(pp_i_modulo_0) | |
| befad5d1 NC |
2628 | #else |
| 2629 | PP(pp_i_modulo) | |
| 2630 | #endif | |
| 224ec323 JH |
2631 | { |
| 2632 | /* This is the vanilla old i_modulo. */ | |
| 27da23d5 | 2633 | dVAR; dSP; dATARGET; tryAMAGICbin(modulo,opASSIGN); |
| 224ec323 JH |
2634 | { |
| 2635 | dPOPTOPiirl; | |
| 2636 | if (!right) | |
| 2637 | DIE(aTHX_ "Illegal modulus zero"); | |
| a0cec769 YST |
2638 | /* avoid FPE_INTOVF on some platforms when left is IV_MIN */ |
| 2639 | if (right == -1) | |
| 2640 | SETi( 0 ); | |
| 2641 | else | |
| 2642 | SETi( left % right ); | |
| 224ec323 JH |
2643 | RETURN; |
| 2644 | } | |
| 2645 | } | |
| 2646 | ||
| 11010fa3 | 2647 | #if defined(__GLIBC__) && IVSIZE == 8 |
| 224ec323 JH |
2648 | STATIC |
| 2649 | PP(pp_i_modulo_1) | |
| befad5d1 | 2650 | |
| 224ec323 | 2651 | { |
| 224ec323 | 2652 | /* This is the i_modulo with the workaround for the _moddi3 bug |
| fce2b89e | 2653 | * in (at least) glibc 2.2.5 (the PERL_ABS() the workaround). |
| 224ec323 | 2654 | * See below for pp_i_modulo. */ |
| 5186cc12 | 2655 | dVAR; dSP; dATARGET; tryAMAGICbin(modulo,opASSIGN); |
| 224ec323 JH |
2656 | { |
| 2657 | dPOPTOPiirl; | |
| 2658 | if (!right) | |
| 2659 | DIE(aTHX_ "Illegal modulus zero"); | |
| a0cec769 YST |
2660 | /* avoid FPE_INTOVF on some platforms when left is IV_MIN */ |
| 2661 | if (right == -1) | |
| 2662 | SETi( 0 ); | |
| 2663 | else | |
| 2664 | SETi( left % PERL_ABS(right) ); | |
| 224ec323 JH |
2665 | RETURN; |
| 2666 | } | |
| 224ec323 JH |
2667 | } |
| 2668 | ||
| a0d0e21e | 2669 | PP(pp_i_modulo) |
| 79072805 | 2670 | { |
| 27da23d5 | 2671 | dVAR; dSP; dATARGET; tryAMAGICbin(modulo,opASSIGN); |
| 224ec323 JH |
2672 | { |
| 2673 | dPOPTOPiirl; | |
| 2674 | if (!right) | |
| 2675 | DIE(aTHX_ "Illegal modulus zero"); | |
| 2676 | /* The assumption is to use hereafter the old vanilla version... */ | |
| 2677 | PL_op->op_ppaddr = | |
| 2678 | PL_ppaddr[OP_I_MODULO] = | |
| 1c127fab | 2679 | Perl_pp_i_modulo_0; |
| 224ec323 JH |
2680 | /* .. but if we have glibc, we might have a buggy _moddi3 |
| 2681 | * (at least glicb 2.2.5 is known to have this bug), in other | |
| 2682 | * words our integer modulus with negative quad as the second | |
| 2683 | * argument might be broken. Test for this and re-patch the | |
| 2684 | * opcode dispatch table if that is the case, remembering to | |
| 2685 | * also apply the workaround so that this first round works | |
| 2686 | * right, too. See [perl #9402] for more information. */ | |
| 224ec323 JH |
2687 | { |
| 2688 | IV l = 3; | |
| 2689 | IV r = -10; | |
| 2690 | /* Cannot do this check with inlined IV constants since | |
| 2691 | * that seems to work correctly even with the buggy glibc. */ | |
| 2692 | if (l % r == -3) { | |
| 2693 | /* Yikes, we have the bug. | |
| 2694 | * Patch in the workaround version. */ | |
| 2695 | PL_op->op_ppaddr = | |
| 2696 | PL_ppaddr[OP_I_MODULO] = | |
| 2697 | &Perl_pp_i_modulo_1; | |
| 2698 | /* Make certain we work right this time, too. */ | |
| 32fdb065 | 2699 | right = PERL_ABS(right); |
| 224ec323 JH |
2700 | } |
| 2701 | } | |
| a0cec769 YST |
2702 | /* avoid FPE_INTOVF on some platforms when left is IV_MIN */ |
| 2703 | if (right == -1) | |
| 2704 | SETi( 0 ); | |
| 2705 | else | |
| 2706 | SETi( left % right ); | |
| 224ec323 JH |
2707 | RETURN; |
| 2708 | } | |
| 79072805 | 2709 | } |
| befad5d1 | 2710 | #endif |
| 79072805 | 2711 | |
| a0d0e21e | 2712 | PP(pp_i_add) |
| 79072805 | 2713 | { |
| 97aff369 | 2714 | dVAR; dSP; dATARGET; tryAMAGICbin(add,opASSIGN); |
| a0d0e21e | 2715 | { |
| 5e66d4f1 | 2716 | dPOPTOPiirl_ul; |
| a0d0e21e LW |
2717 | SETi( left + right ); |
| 2718 | RETURN; | |
| 79072805 | 2719 | } |
| 79072805 LW |
2720 | } |
| 2721 | ||
| a0d0e21e | 2722 | PP(pp_i_subtract) |
| 79072805 | 2723 | { |
| 97aff369 | 2724 | dVAR; dSP; dATARGET; tryAMAGICbin(subtr,opASSIGN); |
| a0d0e21e | 2725 | { |
| 5e66d4f1 | 2726 | dPOPTOPiirl_ul; |
| a0d0e21e LW |
2727 | SETi( left - right ); |
| 2728 | RETURN; | |
| 79072805 | 2729 | } |
| 79072805 LW |
2730 | } |
| 2731 | ||
| a0d0e21e | 2732 | PP(pp_i_lt) |
| 79072805 | 2733 | { |
| 97aff369 | 2734 | dVAR; dSP; tryAMAGICbinSET(lt,0); |
| a0d0e21e LW |
2735 | { |
| 2736 | dPOPTOPiirl; | |
| 54310121 | 2737 | SETs(boolSV(left < right)); |
| a0d0e21e LW |
2738 | RETURN; |
| 2739 | } | |
| 79072805 LW |
2740 | } |
| 2741 | ||
| a0d0e21e | 2742 | PP(pp_i_gt) |
| 79072805 | 2743 | { |
| 97aff369 | 2744 | dVAR; dSP; tryAMAGICbinSET(gt,0); |
| a0d0e21e LW |
2745 | { |
| 2746 | dPOPTOPiirl; | |
| 54310121 | 2747 | SETs(boolSV(left > right)); |
| a0d0e21e LW |
2748 | RETURN; |
| 2749 | } | |
| 79072805 LW |
2750 | } |
| 2751 | ||
| a0d0e21e | 2752 | PP(pp_i_le) |
| 79072805 | 2753 | { |
| 97aff369 | 2754 | dVAR; dSP; tryAMAGICbinSET(le,0); |
| a0d0e21e LW |
2755 | { |
| 2756 | dPOPTOPiirl; | |
| 54310121 | 2757 | SETs(boolSV(left <= right)); |
| a0d0e21e | 2758 | RETURN; |
| 85e6fe83 | 2759 | } |
| 79072805 LW |
2760 | } |
| 2761 | ||
| a0d0e21e | 2762 | PP(pp_i_ge) |
| 79072805 | 2763 | { |
| 97aff369 | 2764 | dVAR; dSP; tryAMAGICbinSET(ge,0); |
| a0d0e21e LW |
2765 | { |
| 2766 | dPOPTOPiirl; | |
| 54310121 | 2767 | SETs(boolSV(left >= right)); |
| a0d0e21e LW |
2768 | RETURN; |
| 2769 | } | |
| 79072805 LW |
2770 | } |
| 2771 | ||
| a0d0e21e | 2772 | PP(pp_i_eq) |
| 79072805 | 2773 | { |
| 97aff369 | 2774 | dVAR; dSP; tryAMAGICbinSET(eq,0); |
| a0d0e21e LW |
2775 | { |
| 2776 | dPOPTOPiirl; | |
| 54310121 | 2777 | SETs(boolSV(left == right)); |
| a0d0e21e LW |
2778 | RETURN; |
| 2779 | } | |
| 79072805 LW |
2780 | } |
| 2781 | ||
| a0d0e21e | 2782 | PP(pp_i_ne) |
| 79072805 | 2783 | { |
| 97aff369 | 2784 | dVAR; dSP; tryAMAGICbinSET(ne,0); |
| a0d0e21e LW |
2785 | { |
| 2786 | dPOPTOPiirl; | |
| 54310121 | 2787 | SETs(boolSV(left != right)); |
| a0d0e21e LW |
2788 | RETURN; |
| 2789 | } | |
| 79072805 LW |
2790 | } |
| 2791 | ||
| a0d0e21e | 2792 | PP(pp_i_ncmp) |
| 79072805 | 2793 | { |
| 97aff369 | 2794 | dVAR; dSP; dTARGET; tryAMAGICbin(ncmp,0); |
| a0d0e21e LW |
2795 | { |
| 2796 | dPOPTOPiirl; | |
| 2797 | I32 value; | |
| 79072805 | 2798 | |
| a0d0e21e | 2799 | if (left > right) |
| 79072805 | 2800 | value = 1; |
| a0d0e21e | 2801 | else if (left < right) |
| 79072805 | 2802 | value = -1; |
| a0d0e21e | 2803 | else |
| 79072805 | 2804 | value = 0; |
| a0d0e21e LW |
2805 | SETi(value); |
| 2806 | RETURN; | |
| 79072805 | 2807 | } |
| 85e6fe83 LW |
2808 | } |
| 2809 | ||
| 2810 | PP(pp_i_negate) | |
| 2811 | { | |
| 97aff369 | 2812 | dVAR; dSP; dTARGET; tryAMAGICun(neg); |
| 85e6fe83 LW |
2813 | SETi(-TOPi); |
| 2814 | RETURN; | |
| 2815 | } | |
| 2816 | ||
| 79072805 LW |
2817 | /* High falutin' math. */ |
| 2818 | ||
| 2819 | PP(pp_atan2) | |
| 2820 | { | |
| 97aff369 | 2821 | dVAR; dSP; dTARGET; tryAMAGICbin(atan2,0); |
| a0d0e21e LW |
2822 | { |
| 2823 | dPOPTOPnnrl; | |
| a1021d57 | 2824 | SETn(Perl_atan2(left, right)); |
| a0d0e21e LW |
2825 | RETURN; |
| 2826 | } | |
| 79072805 LW |
2827 | } |
| 2828 | ||
| 2829 | PP(pp_sin) | |
| 2830 | { | |
| 71302fe3 NC |
2831 | dVAR; dSP; dTARGET; |
| 2832 | int amg_type = sin_amg; | |
| 2833 | const char *neg_report = NULL; | |
| bc81784a | 2834 | NV (*func)(NV) = Perl_sin; |
| 71302fe3 NC |
2835 | const int op_type = PL_op->op_type; |
| 2836 | ||
| 2837 | switch (op_type) { | |
| 2838 | case OP_COS: | |
| 2839 | amg_type = cos_amg; | |
| bc81784a | 2840 | func = Perl_cos; |
| 71302fe3 NC |
2841 | break; |
| 2842 | case OP_EXP: | |
| 2843 | amg_type = exp_amg; | |
| bc81784a | 2844 | func = Perl_exp; |
| 71302fe3 NC |
2845 | break; |
| 2846 | case OP_LOG: | |
| 2847 | amg_type = log_amg; | |
| bc81784a | 2848 | func = Perl_log; |
| 71302fe3 NC |
2849 | neg_report = "log"; |
| 2850 | break; | |
| 2851 | case OP_SQRT: | |
| 2852 | amg_type = sqrt_amg; | |
| bc81784a | 2853 | func = Perl_sqrt; |
| 71302fe3 NC |
2854 | neg_report = "sqrt"; |
| 2855 | break; | |
| a0d0e21e | 2856 | } |
| 79072805 | 2857 | |
| 71302fe3 | 2858 | tryAMAGICun_var(amg_type); |
| a0d0e21e | 2859 | { |
| 1b6737cc | 2860 | const NV value = POPn; |
| 71302fe3 NC |
2861 | if (neg_report) { |
| 2862 | if (op_type == OP_LOG ? (value <= 0.0) : (value < 0.0)) { | |
| 2863 | SET_NUMERIC_STANDARD(); | |
| 2864 | DIE(aTHX_ "Can't take %s of %"NVgf, neg_report, value); | |
| 2865 | } | |
| 2866 | } | |
| 2867 | XPUSHn(func(value)); | |
| a0d0e21e LW |
2868 | RETURN; |
| 2869 | } | |
| 79072805 LW |
2870 | } |
| 2871 | ||
| 56cb0a1c AD |
2872 | /* Support Configure command-line overrides for rand() functions. |
| 2873 | After 5.005, perhaps we should replace this by Configure support | |
| 2874 | for drand48(), random(), or rand(). For 5.005, though, maintain | |
| 2875 | compatibility by calling rand() but allow the user to override it. | |
| 2876 | See INSTALL for details. --Andy Dougherty 15 July 1998 | |
| 2877 | */ | |
| 85ab1d1d JH |
2878 | /* Now it's after 5.005, and Configure supports drand48() and random(), |
| 2879 | in addition to rand(). So the overrides should not be needed any more. | |
| 2880 | --Jarkko Hietaniemi 27 September 1998 | |
| 2881 | */ | |
| 2882 | ||
| 2883 | #ifndef HAS_DRAND48_PROTO | |
| 20ce7b12 | 2884 | extern double drand48 (void); |
| 56cb0a1c AD |
2885 | #endif |
| 2886 | ||
| 79072805 LW |
2887 | PP(pp_rand) |
| 2888 | { | |
| 97aff369 | 2889 | dVAR; dSP; dTARGET; |
| 65202027 | 2890 | NV value; |
| 79072805 LW |
2891 | if (MAXARG < 1) |
| 2892 | value = 1.0; | |
| 2893 | else | |
| 2894 | value = POPn; | |
| 2895 | if (value == 0.0) | |
| 2896 | value = 1.0; | |
| 80252599 | 2897 | if (!PL_srand_called) { |
| 85ab1d1d | 2898 | (void)seedDrand01((Rand_seed_t)seed()); |
| 80252599 | 2899 | PL_srand_called = TRUE; |
| 93dc8474 | 2900 | } |
| 85ab1d1d | 2901 | value *= Drand01(); |
| 79072805 LW |
2902 | XPUSHn(value); |
| 2903 | RETURN; | |
| 2904 | } | |
| 2905 | ||
| 2906 | PP(pp_srand) | |
| 2907 | { | |
| 97aff369 | 2908 | dVAR; dSP; |
| 0bd48802 | 2909 | const UV anum = (MAXARG < 1) ? seed() : POPu; |
| 85ab1d1d | 2910 | (void)seedDrand01((Rand_seed_t)anum); |
| 80252599 | 2911 | PL_srand_called = TRUE; |
| 79072805 LW |
2912 | EXTEND(SP, 1); |
| 2913 | RETPUSHYES; | |
| 2914 | } | |
| 2915 | ||
| 79072805 LW |
2916 | PP(pp_int) |
| 2917 | { | |
| 97aff369 | 2918 | dVAR; dSP; dTARGET; tryAMAGICun(int); |
| 774d564b | 2919 | { |
| 800401ee JH |
2920 | SV * const sv = sv_2num(TOPs); |
| 2921 | const IV iv = SvIV(sv); | |
| 28e5dec8 JH |
2922 | /* XXX it's arguable that compiler casting to IV might be subtly |
| 2923 | different from modf (for numbers inside (IV_MIN,UV_MAX)) in which | |
| 2924 | else preferring IV has introduced a subtle behaviour change bug. OTOH | |
| 2925 | relying on floating point to be accurate is a bug. */ | |
| 2926 | ||
| c781a409 | 2927 | if (!SvOK(sv)) { |
| 922c4365 | 2928 | SETu(0); |
| c781a409 RD |
2929 | } |
| 2930 | else if (SvIOK(sv)) { | |
| 2931 | if (SvIsUV(sv)) | |
| 2932 | SETu(SvUV(sv)); | |
| 2933 | else | |
| 28e5dec8 | 2934 | SETi(iv); |
| c781a409 | 2935 | } |
| c781a409 RD |
2936 | else { |
| 2937 | const NV value = SvNV(sv); | |
| 1048ea30 | 2938 | if (value >= 0.0) { |
| 28e5dec8 JH |
2939 | if (value < (NV)UV_MAX + 0.5) { |
| 2940 | SETu(U_V(value)); | |
| 2941 | } else { | |
| 059a1014 | 2942 | SETn(Perl_floor(value)); |
| 28e5dec8 | 2943 | } |
| 1048ea30 | 2944 | } |
| 28e5dec8 JH |
2945 | else { |
| 2946 | if (value > (NV)IV_MIN - 0.5) { | |
| 2947 | SETi(I_V(value)); | |
| 2948 | } else { | |
| 1bbae031 | 2949 | SETn(Perl_ceil(value)); |
| 28e5dec8 JH |
2950 | } |
| 2951 | } | |
| 774d564b | 2952 | } |
| 79072805 | 2953 | } |
| 79072805 LW |
2954 | RETURN; |
| 2955 | } | |
| 2956 | ||
| 463ee0b2 LW |
2957 | PP(pp_abs) |
| 2958 | { | |
| 97aff369 | 2959 | dVAR; dSP; dTARGET; tryAMAGICun(abs); |
| a0d0e21e | 2960 | { |
| 800401ee | 2961 | SV * const sv = sv_2num(TOPs); |
| 28e5dec8 | 2962 | /* This will cache the NV value if string isn't actually integer */ |
| 800401ee | 2963 | const IV iv = SvIV(sv); |
| a227d84d | 2964 | |
| 800401ee | 2965 | if (!SvOK(sv)) { |
| 922c4365 | 2966 | SETu(0); |
| 800401ee JH |
2967 | } |
| 2968 | else if (SvIOK(sv)) { | |
| 28e5dec8 | 2969 | /* IVX is precise */ |
| 800401ee JH |
2970 | if (SvIsUV(sv)) { |
| 2971 | SETu(SvUV(sv)); /* force it to be numeric only */ | |
| 28e5dec8 JH |
2972 | } else { |
| 2973 | if (iv >= 0) { | |
| 2974 | SETi(iv); | |
| 2975 | } else { | |
| 2976 | if (iv != IV_MIN) { | |
| 2977 | SETi(-iv); | |
| 2978 | } else { | |
| 2979 | /* 2s complement assumption. Also, not really needed as | |
| 2980 | IV_MIN and -IV_MIN should both be %100...00 and NV-able */ | |
| 2981 | SETu(IV_MIN); | |
| 2982 | } | |
| a227d84d | 2983 | } |
| 28e5dec8 JH |
2984 | } |
| 2985 | } else{ | |
| 800401ee | 2986 | const NV value = SvNV(sv); |
| 774d564b | 2987 | if (value < 0.0) |
| 1b6737cc | 2988 | SETn(-value); |
| a4474c9e DD |
2989 | else |
| 2990 | SETn(value); | |
| 774d564b | 2991 | } |
| a0d0e21e | 2992 | } |
| 774d564b | 2993 | RETURN; |
| 463ee0b2 LW |
2994 | } |
| 2995 | ||
| 79072805 LW |
2996 | PP(pp_oct) |
| 2997 | { | |
| 97aff369 | 2998 | dVAR; dSP; dTARGET; |
| 5c144d81 | 2999 | const char *tmps; |
| 53305cf1 | 3000 | I32 flags = PERL_SCAN_ALLOW_UNDERSCORES; |
| 6f894ead | 3001 | STRLEN len; |
| 53305cf1 NC |
3002 | NV result_nv; |
| 3003 | UV result_uv; | |
| 1b6737cc | 3004 | SV* const sv = POPs; |
| 79072805 | 3005 | |
| 349d4f2f | 3006 | tmps = (SvPV_const(sv, len)); |
| 2bc69dc4 NIS |
3007 | if (DO_UTF8(sv)) { |
| 3008 | /* If Unicode, try to downgrade | |
| 3009 | * If not possible, croak. */ | |
| 1b6737cc | 3010 | SV* const tsv = sv_2mortal(newSVsv(sv)); |
| 2bc69dc4 NIS |
3011 | |
| 3012 | SvUTF8_on(tsv); | |
| 3013 | sv_utf8_downgrade(tsv, FALSE); | |
| 349d4f2f | 3014 | tmps = SvPV_const(tsv, len); |
| 2bc69dc4 | 3015 | } |
| daa2adfd NC |
3016 | if (PL_op->op_type == OP_HEX) |
| 3017 | goto hex; | |
| 3018 | ||
| 6f894ead | 3019 | while (*tmps && len && isSPACE(*tmps)) |
| 53305cf1 | 3020 | tmps++, len--; |
| 9e24b6e2 | 3021 | if (*tmps == '0') |
| 53305cf1 | 3022 | tmps++, len--; |
| daa2adfd NC |
3023 | if (*tmps == 'x') { |
| 3024 | hex: | |
| 53305cf1 | 3025 | result_uv = grok_hex (tmps, &len, &flags, &result_nv); |
| daa2adfd | 3026 | } |
| 9e24b6e2 | 3027 | else if (*tmps == 'b') |
| 53305cf1 | 3028 | result_uv = grok_bin (tmps, &len, &flags, &result_nv); |
| 464e2e8a | 3029 | else |
| 53305cf1 NC |
3030 | result_uv = grok_oct (tmps, &len, &flags, &result_nv); |
| 3031 | ||
| 3032 | if (flags & PERL_SCAN_GREATER_THAN_UV_MAX) { | |
| 3033 | XPUSHn(result_nv); | |
| 3034 | } | |
| 3035 | else { | |
| 3036 | XPUSHu(result_uv); | |
| 3037 | } | |
| 79072805 LW |
3038 | RETURN; |
| 3039 | } | |
| 3040 | ||
| 3041 | /* String stuff. */ | |
| 3042 | ||
| 3043 | PP(pp_length) | |
| 3044 | { | |
| 97aff369 | 3045 | dVAR; dSP; dTARGET; |
| 0bd48802 | 3046 | SV * const sv = TOPs; |
| a0ed51b3 | 3047 | |
| 656266fc | 3048 | if (SvGAMAGIC(sv)) { |
| 9f621bb0 NC |
3049 | /* For an overloaded or magic scalar, we can't know in advance if |
| 3050 | it's going to be UTF-8 or not. Also, we can't call sv_len_utf8 as | |
| 3051 | it likes to cache the length. Maybe that should be a documented | |
| 3052 | feature of it. | |
| 92331800 NC |
3053 | */ |
| 3054 | STRLEN len; | |
| 9f621bb0 NC |
3055 | const char *const p |
| 3056 | = sv_2pv_flags(sv, &len, | |
| 3057 | SV_UNDEF_RETURNS_NULL|SV_CONST_RETURN|SV_GMAGIC); | |
| 92331800 | 3058 | |
| 9f621bb0 NC |
3059 | if (!p) |
| 3060 | SETs(&PL_sv_undef); | |
| 3061 | else if (DO_UTF8(sv)) { | |
| 899be101 | 3062 | SETi(utf8_length((U8*)p, (U8*)p + len)); |
| 92331800 NC |
3063 | } |
| 3064 | else | |
| 3065 | SETi(len); | |
| 656266fc | 3066 | } else if (SvOK(sv)) { |
| 9f621bb0 NC |
3067 | /* Neither magic nor overloaded. */ |
| 3068 | if (DO_UTF8(sv)) | |
| 3069 | SETi(sv_len_utf8(sv)); | |
| 3070 | else | |
| 3071 | SETi(sv_len(sv)); | |
| 656266fc NC |
3072 | } else { |
| 3073 | SETs(&PL_sv_undef); | |
| 92331800 | 3074 | } |
| 79072805 LW |
3075 | RETURN; |
| 3076 | } | |
| 3077 | ||
| 3078 | PP(pp_substr) | |
| 3079 | { | |
| 97aff369 | 3080 | dVAR; dSP; dTARGET; |
| 79072805 | 3081 | SV *sv; |
| b6d1426f | 3082 | IV len = 0; |
| 463ee0b2 | 3083 | STRLEN curlen; |
| 9402d6ed | 3084 | STRLEN utf8_curlen; |
| b6d1426f Z |
3085 | IV pos; |
| 3086 | IV rem; | |
| 3087 | IV fail; | |
| 050e6362 | 3088 | const I32 lvalue = PL_op->op_flags & OPf_MOD || LVRET; |
| e1ec3a88 | 3089 | const char *tmps; |
| fc15ae8f | 3090 | const I32 arybase = CopARYBASE_get(PL_curcop); |
| 9402d6ed | 3091 | SV *repl_sv = NULL; |
| cbbf8932 | 3092 | const char *repl = NULL; |
| 7b8d334a | 3093 | STRLEN repl_len; |
| 050e6362 | 3094 | const int num_args = PL_op->op_private & 7; |
| 13e30c65 | 3095 | bool repl_need_utf8_upgrade = FALSE; |
| 9402d6ed | 3096 | bool repl_is_utf8 = FALSE; |
| 79072805 | 3097 | |
| 20408e3c | 3098 | SvTAINTED_off(TARG); /* decontaminate */ |
| 7e2040f0 | 3099 | SvUTF8_off(TARG); /* decontaminate */ |
| 78f9721b SM |
3100 | if (num_args > 2) { |
| 3101 | if (num_args > 3) { | |
| 9402d6ed | 3102 | repl_sv = POPs; |
| 83003860 | 3103 | repl = SvPV_const(repl_sv, repl_len); |
| 9402d6ed | 3104 | repl_is_utf8 = DO_UTF8(repl_sv) && SvCUR(repl_sv); |
| 7b8d334a | 3105 | } |
| 79072805 | 3106 | len = POPi; |
| 5d82c453 | 3107 | } |
| 84902520 | 3108 | pos = POPi; |
| 79072805 | 3109 | sv = POPs; |
| 849ca7ee | 3110 | PUTBACK; |
| 9402d6ed JH |
3111 | if (repl_sv) { |
| 3112 | if (repl_is_utf8) { | |
| 3113 | if (!DO_UTF8(sv)) | |
| 3114 | sv_utf8_upgrade(sv); | |
| 3115 | } | |
| 13e30c65 JH |
3116 | else if (DO_UTF8(sv)) |
| 3117 | repl_need_utf8_upgrade = TRUE; | |
| 9402d6ed | 3118 | } |
| 5c144d81 | 3119 | tmps = SvPV_const(sv, curlen); |
| 7e2040f0 | 3120 | if (DO_UTF8(sv)) { |
| 9402d6ed JH |
3121 | utf8_curlen = sv_len_utf8(sv); |
| 3122 | if (utf8_curlen == curlen) | |
| 3123 | utf8_curlen = 0; | |
| a0ed51b3 | 3124 | else |
| 9402d6ed | 3125 | curlen = utf8_curlen; |
| a0ed51b3 | 3126 | } |
| d1c2b58a | 3127 | else |
| 9402d6ed | 3128 | utf8_curlen = 0; |
| a0ed51b3 | 3129 | |
| 84902520 TB |
3130 | if (pos >= arybase) { |
| 3131 | pos -= arybase; | |
| 3132 | rem = curlen-pos; | |
| 3133 | fail = rem; | |
| 78f9721b | 3134 | if (num_args > 2) { |
| 5d82c453 GA |
3135 | if (len < 0) { |
| 3136 | rem += len; | |
| 3137 | if (rem < 0) | |
| 3138 | rem = 0; | |
| 3139 | } | |
| 3140 | else if (rem > len) | |
| 3141 | rem = len; | |
| 3142 | } | |
| 68dc0745 | 3143 | } |
| 84902520 | 3144 | else { |
| 5d82c453 | 3145 | pos += curlen; |
| 78f9721b | 3146 | if (num_args < 3) |
| 5d82c453 GA |
3147 | rem = curlen; |
| 3148 | else if (len >= 0) { | |
| 3149 | rem = pos+len; | |
| b6d1426f | 3150 | if (rem > (IV)curlen) |
| 5d82c453 GA |
3151 | rem = curlen; |
| 3152 | } | |
| 3153 | else { | |
| 3154 | rem = curlen+len; | |
| 3155 | if (rem < pos) | |
| 3156 | rem = pos; | |
| 3157 | } | |
| 3158 | if (pos < 0) | |
| 3159 | pos = 0; | |
| 3160 | fail = rem; | |
| 3161 | rem -= pos; | |
| 84902520 TB |
3162 | } |
| 3163 | if (fail < 0) { | |
| e476b1b5 GS |
3164 | if (lvalue || repl) |
| 3165 | Perl_croak(aTHX_ "substr outside of string"); | |
| a2a5de95 | 3166 | Perl_ck_warner(aTHX_ packWARN(WARN_SUBSTR), "substr outside of string"); |
| 2304df62 AD |
3167 | RETPUSHUNDEF; |
| 3168 | } | |
| 79072805 | 3169 | else { |
| b6d1426f Z |
3170 | const IV upos = pos; |
| 3171 | const IV urem = rem; | |
| 9402d6ed | 3172 | if (utf8_curlen) |
| a0ed51b3 | 3173 | sv_pos_u2b(sv, &pos, &rem); |
| 79072805 | 3174 | tmps += pos; |
| 781e7547 DM |
3175 | /* we either return a PV or an LV. If the TARG hasn't been used |
| 3176 | * before, or is of that type, reuse it; otherwise use a mortal | |
| 3177 | * instead. Note that LVs can have an extended lifetime, so also | |
| 3178 | * dont reuse if refcount > 1 (bug #20933) */ | |
| 3179 | if (SvTYPE(TARG) > SVt_NULL) { | |
| 3180 | if ( (SvTYPE(TARG) == SVt_PVLV) | |
| 3181 | ? (!lvalue || SvREFCNT(TARG) > 1) | |
| 3182 | : lvalue) | |
| 3183 | { | |
| 3184 | TARG = sv_newmortal(); | |
| 3185 | } | |
| 3186 | } | |
| 3187 | ||
| 050e6362 | 3188 | sv_setpvn(TARG, tmps, rem); |
| 12aa1545 | 3189 | #ifdef USE_LOCALE_COLLATE |
| 14befaf4 | 3190 | sv_unmagic(TARG, PERL_MAGIC_collxfrm); |
| 12aa1545 | 3191 | #endif |
| 9402d6ed | 3192 | if (utf8_curlen) |
| 7f66633b | 3193 | SvUTF8_on(TARG); |
| f7928d6c | 3194 | if (repl) { |
| 13e30c65 JH |
3195 | SV* repl_sv_copy = NULL; |
| 3196 | ||
| 3197 | if (repl_need_utf8_upgrade) { | |
| 3198 | repl_sv_copy = newSVsv(repl_sv); | |
| 3199 | sv_utf8_upgrade(repl_sv_copy); | |
| 349d4f2f | 3200 | repl = SvPV_const(repl_sv_copy, repl_len); |
| 13e30c65 JH |
3201 | repl_is_utf8 = DO_UTF8(repl_sv_copy) && SvCUR(sv); |
| 3202 | } | |
| 502d9230 VP |
3203 | if (!SvOK(sv)) |
| 3204 | sv_setpvs(sv, ""); | |
| c0dd94a0 | 3205 | sv_insert_flags(sv, pos, rem, repl, repl_len, 0); |
| 9402d6ed | 3206 | if (repl_is_utf8) |
| f7928d6c | 3207 | SvUTF8_on(sv); |
| ef8d46e8 | 3208 | SvREFCNT_dec(repl_sv_copy); |
| f7928d6c | 3209 | } |
| c8faf1c5 | 3210 | else if (lvalue) { /* it's an lvalue! */ |
| dedeecda | 3211 | if (!SvGMAGICAL(sv)) { |
| 3212 | if (SvROK(sv)) { | |
| 13c5b33c | 3213 | SvPV_force_nolen(sv); |
| a2a5de95 NC |
3214 | Perl_ck_warner(aTHX_ packWARN(WARN_SUBSTR), |
| 3215 | "Attempt to use reference as lvalue in substr"); | |
| dedeecda | 3216 | } |
| f7877b28 NC |
3217 | if (isGV_with_GP(sv)) |
| 3218 | SvPV_force_nolen(sv); | |
| 3219 | else if (SvOK(sv)) /* is it defined ? */ | |
| 7f66633b | 3220 | (void)SvPOK_only_UTF8(sv); |
| dedeecda | 3221 | else |
| 523f125d | 3222 | sv_setpvs(sv, ""); /* avoid lexical reincarnation */ |
| dedeecda | 3223 | } |
| 5f05dabc | 3224 | |
| a0d0e21e LW |
3225 | if (SvTYPE(TARG) < SVt_PVLV) { |
| 3226 | sv_upgrade(TARG, SVt_PVLV); | |
| c445ea15 | 3227 | sv_magic(TARG, NULL, PERL_MAGIC_substr, NULL, 0); |
| ed6116ce | 3228 | } |
| a0d0e21e | 3229 | |
| 5f05dabc | 3230 | LvTYPE(TARG) = 'x'; |
| 6ff81951 | 3231 | if (LvTARG(TARG) != sv) { |
| cb39f75f | 3232 | SvREFCNT_dec(LvTARG(TARG)); |
| b37c2d43 | 3233 | LvTARG(TARG) = SvREFCNT_inc_simple(sv); |
| 6ff81951 | 3234 | } |
| 9aa983d2 JH |
3235 | LvTARGOFF(TARG) = upos; |
| 3236 | LvTARGLEN(TARG) = urem; | |
| 79072805 LW |
3237 | } |
| 3238 | } | |
| 849ca7ee | 3239 | SPAGAIN; |
| 79072805 LW |
3240 | PUSHs(TARG); /* avoid SvSETMAGIC here */ |
| 3241 | RETURN; | |
| 3242 | } | |
| 3243 | ||
| 3244 | PP(pp_vec) | |
| 3245 | { | |
| 97aff369 | 3246 | dVAR; dSP; dTARGET; |
| 1b6737cc AL |
3247 | register const IV size = POPi; |
| 3248 | register const IV offset = POPi; | |
| 3249 | register SV * const src = POPs; | |
| 3250 | const I32 lvalue = PL_op->op_flags & OPf_MOD || LVRET; | |
| a0d0e21e | 3251 | |
| 81e118e0 JH |
3252 | SvTAINTED_off(TARG); /* decontaminate */ |
| 3253 | if (lvalue) { /* it's an lvalue! */ | |
| 24aef97f HS |
3254 | if (SvREFCNT(TARG) > 1) /* don't share the TARG (#20933) */ |
| 3255 | TARG = sv_newmortal(); | |
| 81e118e0 JH |
3256 | if (SvTYPE(TARG) < SVt_PVLV) { |
| 3257 | sv_upgrade(TARG, SVt_PVLV); | |
| c445ea15 | 3258 | sv_magic(TARG, NULL, PERL_MAGIC_vec, NULL, 0); |
| 79072805 | 3259 | } |
| 81e118e0 JH |
3260 | LvTYPE(TARG) = 'v'; |
| 3261 | if (LvTARG(TARG) != src) { | |
| cb39f75f | 3262 | SvREFCNT_dec(LvTARG(TARG)); |
| b37c2d43 | 3263 | LvTARG(TARG) = SvREFCNT_inc_simple(src); |
| 79072805 | 3264 | } |
| 81e118e0 JH |
3265 | LvTARGOFF(TARG) = offset; |
| 3266 | LvTARGLEN(TARG) = size; | |
| 79072805 LW |
3267 | } |
| 3268 | ||
| 81e118e0 | 3269 | sv_setuv(TARG, do_vecget(src, offset, size)); |
| 79072805 LW |
3270 | PUSHs(TARG); |
| 3271 | RETURN; | |
| 3272 | } | |
| 3273 | ||
| 3274 | PP(pp_index) | |
| 3275 | { | |
| 97aff369 | 3276 | dVAR; dSP; dTARGET; |
| 79072805 LW |
3277 | SV *big; |
| 3278 | SV *little; | |
| c445ea15 | 3279 | SV *temp = NULL; |
| ad66a58c | 3280 | STRLEN biglen; |
| 2723d216 | 3281 | STRLEN llen = 0; |
| 79072805 LW |
3282 | I32 offset; |
| 3283 | I32 retval; | |
| 73ee8be2 NC |
3284 | const char *big_p; |
| 3285 | const char *little_p; | |
| fc15ae8f | 3286 | const I32 arybase = CopARYBASE_get(PL_curcop); |
| 2f040f7f NC |
3287 | bool big_utf8; |
| 3288 | bool little_utf8; | |
| 2723d216 | 3289 | const bool is_index = PL_op->op_type == OP_INDEX; |
| 79072805 | 3290 | |
| 2723d216 NC |
3291 | if (MAXARG >= 3) { |
| 3292 | /* arybase is in characters, like offset, so combine prior to the | |
| 3293 | UTF-8 to bytes calculation. */ | |
| 79072805 | 3294 | offset = POPi - arybase; |
| 2723d216 | 3295 | } |
| 79072805 LW |
3296 | little = POPs; |
| 3297 | big = POPs; | |
| 73ee8be2 NC |
3298 | big_p = SvPV_const(big, biglen); |
| 3299 | little_p = SvPV_const(little, llen); | |
| 3300 | ||
| e609e586 NC |
3301 | big_utf8 = DO_UTF8(big); |
| 3302 | little_utf8 = DO_UTF8(little); | |
| 3303 | if (big_utf8 ^ little_utf8) { | |
| 3304 | /* One needs to be upgraded. */ | |
| 2f040f7f NC |
3305 | if (little_utf8 && !PL_encoding) { |
| 3306 | /* Well, maybe instead we might be able to downgrade the small | |
| 3307 | string? */ | |
| 1eced8f8 | 3308 | char * const pv = (char*)bytes_from_utf8((U8 *)little_p, &llen, |
| 2f040f7f NC |
3309 | &little_utf8); |
| 3310 | if (little_utf8) { | |
| 3311 | /* If the large string is ISO-8859-1, and it's not possible to | |
| 3312 | convert the small string to ISO-8859-1, then there is no | |
| 3313 | way that it could be found anywhere by index. */ | |
| 3314 | retval = -1; | |
| 3315 | goto fail; | |
| 3316 | } | |
| e609e586 | 3317 | |
| 2f040f7f NC |
3318 | /* At this point, pv is a malloc()ed string. So donate it to temp |
| 3319 | to ensure it will get free()d */ | |
| 3320 | little = temp = newSV(0); | |
| 73ee8be2 NC |
3321 | sv_usepvn(temp, pv, llen); |
| 3322 | little_p = SvPVX(little); | |
| e609e586 | 3323 | } else { |
| 73ee8be2 NC |
3324 | temp = little_utf8 |
| 3325 | ? newSVpvn(big_p, biglen) : newSVpvn(little_p, llen); | |
| 2f040f7f NC |
3326 | |
| 3327 | if (PL_encoding) { | |
| 3328 | sv_recode_to_utf8(temp, PL_encoding); | |
| 3329 | } else { | |
| 3330 | sv_utf8_upgrade(temp); | |
| 3331 | } | |
| 3332 | if (little_utf8) { | |
| 3333 | big = temp; | |
| 3334 | big_utf8 = TRUE; | |
| 73ee8be2 | 3335 | big_p = SvPV_const(big, biglen); |
| 2f040f7f NC |
3336 | } else { |
| 3337 | little = temp; | |
| 73ee8be2 | 3338 | little_p = SvPV_const(little, llen); |
| 2f040f7f | 3339 | } |
| e609e586 NC |
3340 | } |
| 3341 | } | |
| 73ee8be2 NC |
3342 | if (SvGAMAGIC(big)) { |
| 3343 | /* Life just becomes a lot easier if I use a temporary here. | |
| 3344 | Otherwise I need to avoid calls to sv_pos_u2b(), which (dangerously) | |
| 3345 | will trigger magic and overloading again, as will fbm_instr() | |
| 3346 | */ | |
| 59cd0e26 NC |
3347 | big = newSVpvn_flags(big_p, biglen, |
| 3348 | SVs_TEMP | (big_utf8 ? SVf_UTF8 : 0)); | |
| 73ee8be2 NC |
3349 | big_p = SvPVX(big); |
| 3350 | } | |
| e4e44778 | 3351 | if (SvGAMAGIC(little) || (is_index && !SvOK(little))) { |
| 73ee8be2 NC |
3352 | /* index && SvOK() is a hack. fbm_instr() calls SvPV_const, which will |
| 3353 | warn on undef, and we've already triggered a warning with the | |
| 3354 | SvPV_const some lines above. We can't remove that, as we need to | |
| 3355 | call some SvPV to trigger overloading early and find out if the | |
| 3356 | string is UTF-8. | |
| 3357 | This is all getting to messy. The API isn't quite clean enough, | |
| 3358 | because data access has side effects. | |
| 3359 | */ | |
| 59cd0e26 NC |
3360 | little = newSVpvn_flags(little_p, llen, |
| 3361 | SVs_TEMP | (little_utf8 ? SVf_UTF8 : 0)); | |
| 73ee8be2 NC |
3362 | little_p = SvPVX(little); |
| 3363 | } | |
| e609e586 | 3364 | |
| 79072805 | 3365 | if (MAXARG < 3) |
| 2723d216 | 3366 | offset = is_index ? 0 : biglen; |
| a0ed51b3 | 3367 | else { |
| ad66a58c | 3368 | if (big_utf8 && offset > 0) |
| a0ed51b3 | 3369 | sv_pos_u2b(big, &offset, 0); |
| 73ee8be2 NC |
3370 | if (!is_index) |
| 3371 | offset += llen; | |
| a0ed51b3 | 3372 | } |
| 79072805 LW |
3373 | if (offset < 0) |
| 3374 | offset = 0; | |
| ad66a58c NC |
3375 | else if (offset > (I32)biglen) |
| 3376 | offset = biglen; | |
| 73ee8be2 NC |
3377 | if (!(little_p = is_index |
| 3378 | ? fbm_instr((unsigned char*)big_p + offset, | |
| 3379 | (unsigned char*)big_p + biglen, little, 0) | |
| 3380 | : rninstr(big_p, big_p + offset, | |
| 3381 | little_p, little_p + llen))) | |
| a0ed51b3 | 3382 | retval = -1; |
| ad66a58c | 3383 | else { |
| 73ee8be2 | 3384 | retval = little_p - big_p; |
| ad66a58c NC |
3385 | if (retval > 0 && big_utf8) |
| 3386 | sv_pos_b2u(big, &retval); | |
| 3387 | } | |
| ef8d46e8 | 3388 | SvREFCNT_dec(temp); |
| 2723d216 | 3389 | fail: |
| a0ed51b3 | 3390 | PUSHi(retval + arybase); |
| 79072805 LW |
3391 | RETURN; |
| 3392 | } | |
| 3393 | ||
| 3394 | PP(pp_sprintf) | |
| 3395 | { | |
| 97aff369 | 3396 | dVAR; dSP; dMARK; dORIGMARK; dTARGET; |
| 20ee07fb RGS |
3397 | if (SvTAINTED(MARK[1])) |
| 3398 | TAINT_PROPER("sprintf"); | |
| 79072805 | 3399 | do_sprintf(TARG, SP-MARK, MARK+1); |
| bbce6d69 | 3400 | TAINT_IF(SvTAINTED(TARG)); |
| 79072805 LW |
3401 | SP = ORIGMARK; |
| 3402 | PUSHTARG; | |
| 3403 | RETURN; | |
| 3404 | } | |
| 3405 | ||
| 79072805 LW |
3406 | PP(pp_ord) |
| 3407 | { | |
| 97aff369 | 3408 | dVAR; dSP; dTARGET; |
| 1eced8f8 | 3409 | |
| 7df053ec | 3410 | SV *argsv = POPs; |
| ba210ebe | 3411 | STRLEN len; |
| 349d4f2f | 3412 | const U8 *s = (U8*)SvPV_const(argsv, len); |
| 121910a4 | 3413 | |
| 799ef3cb | 3414 | if (PL_encoding && SvPOK(argsv) && !DO_UTF8(argsv)) { |
| 1eced8f8 | 3415 | SV * const tmpsv = sv_2mortal(newSVsv(argsv)); |
| 799ef3cb | 3416 | s = (U8*)sv_recode_to_utf8(tmpsv, PL_encoding); |
| 121910a4 JH |
3417 | argsv = tmpsv; |
| 3418 | } | |
| 79072805 | 3419 | |
| 872c91ae | 3420 | XPUSHu(DO_UTF8(argsv) ? |
| 89ebb4a3 | 3421 | utf8n_to_uvchr(s, UTF8_MAXBYTES, 0, UTF8_ALLOW_ANYUV) : |
| 5fc32dea | 3422 | (UV)(*s & 0xff)); |
| 68795e93 | 3423 | |
| 79072805 LW |
3424 | RETURN; |
| 3425 | } | |
| 3426 | ||
| 463ee0b2 LW |
3427 | PP(pp_chr) |
| 3428 | { | |
| 97aff369 | 3429 | dVAR; dSP; dTARGET; |
| 463ee0b2 | 3430 | char *tmps; |
| 8a064bd6 JH |
3431 | UV value; |
| 3432 | ||
| 3433 | if (((SvIOK_notUV(TOPs) && SvIV(TOPs) < 0) | |
| 3434 | || | |
| 3435 | (SvNOK(TOPs) && SvNV(TOPs) < 0.0))) { | |
| 3436 | if (IN_BYTES) { | |
| 3437 | value = POPu; /* chr(-1) eq chr(0xff), etc. */ | |
| 3438 | } else { | |
| 3439 | (void) POPs; /* Ignore the argument value. */ | |
| 3440 | value = UNICODE_REPLACEMENT; | |
| 3441 | } | |
| 3442 | } else { | |
| 3443 | value = POPu; | |
| 3444 | } | |
| 463ee0b2 | 3445 | |
| 862a34c6 | 3446 | SvUPGRADE(TARG,SVt_PV); |
| a0ed51b3 | 3447 | |
| 0064a8a9 | 3448 | if (value > 255 && !IN_BYTES) { |
| eb160463 | 3449 | SvGROW(TARG, (STRLEN)UNISKIP(value)+1); |
| 62961d2e | 3450 | tmps = (char*)uvchr_to_utf8_flags((U8*)SvPVX(TARG), value, 0); |
| 349d4f2f | 3451 | SvCUR_set(TARG, tmps - SvPVX_const(TARG)); |
| a0ed51b3 LW |
3452 | *tmps = '\0'; |
| 3453 | (void)SvPOK_only(TARG); | |
| aa6ffa16 | 3454 | SvUTF8_on(TARG); |
| a0ed51b3 LW |
3455 | XPUSHs(TARG); |
| 3456 | RETURN; | |
| 3457 | } | |
| 3458 | ||
| 748a9306 | 3459 | SvGROW(TARG,2); |
| 463ee0b2 LW |
3460 | SvCUR_set(TARG, 1); |
| 3461 | tmps = SvPVX(TARG); | |
| eb160463 | 3462 | *tmps++ = (char)value; |
| 748a9306 | 3463 | *tmps = '\0'; |
| a0d0e21e | 3464 | (void)SvPOK_only(TARG); |
| 4c5ed6e2 | 3465 | |
| 88632417 | 3466 | if (PL_encoding && !IN_BYTES) { |
| 799ef3cb | 3467 | sv_recode_to_utf8(TARG, PL_encoding); |
| 88632417 JH |
3468 | tmps = SvPVX(TARG); |
| 3469 | if (SvCUR(TARG) == 0 || !is_utf8_string((U8*)tmps, SvCUR(TARG)) || | |
| 4c5ed6e2 TS |
3470 | UNICODE_IS_REPLACEMENT(utf8_to_uvchr((U8*)tmps, NULL))) { |
| 3471 | SvGROW(TARG, 2); | |
| d5a15ac2 | 3472 | tmps = SvPVX(TARG); |
| 4c5ed6e2 TS |
3473 | SvCUR_set(TARG, 1); |
| 3474 | *tmps++ = (char)value; | |
| 88632417 | 3475 | *tmps = '\0'; |
| 4c5ed6e2 | 3476 | SvUTF8_off(TARG); |
| 88632417 JH |
3477 | } |
| 3478 | } | |
| 4c5ed6e2 | 3479 | |
| 463ee0b2 LW |
3480 | XPUSHs(TARG); |
| 3481 | RETURN; | |
| 3482 | } | |
| 3483 | ||
| 79072805 LW |
3484 | PP(pp_crypt) |
| 3485 | { | |
| 79072805 | 3486 | #ifdef HAS_CRYPT |
| 97aff369 | 3487 | dVAR; dSP; dTARGET; |
| 5f74f29c | 3488 | dPOPTOPssrl; |
| 85c16d83 | 3489 | STRLEN len; |
| 10516c54 | 3490 | const char *tmps = SvPV_const(left, len); |
| 2bc69dc4 | 3491 | |
| 85c16d83 | 3492 | if (DO_UTF8(left)) { |
| 2bc69dc4 | 3493 | /* If Unicode, try to downgrade. |
| f2791508 JH |
3494 | * If not possible, croak. |
| 3495 | * Yes, we made this up. */ | |
| 1b6737cc | 3496 | SV* const tsv = sv_2mortal(newSVsv(left)); |
| 2bc69dc4 | 3497 | |
| f2791508 | 3498 | SvUTF8_on(tsv); |
| 2bc69dc4 | 3499 | sv_utf8_downgrade(tsv, FALSE); |
| 349d4f2f | 3500 | tmps = SvPV_const(tsv, len); |
| 85c16d83 | 3501 | } |
| 05404ffe JH |
3502 | # ifdef USE_ITHREADS |
| 3503 | # ifdef HAS_CRYPT_R | |
| 3504 | if (!PL_reentrant_buffer->_crypt_struct_buffer) { | |
| 3505 | /* This should be threadsafe because in ithreads there is only | |
| 3506 | * one thread per interpreter. If this would not be true, | |
| 3507 | * we would need a mutex to protect this malloc. */ | |
| 3508 | PL_reentrant_buffer->_crypt_struct_buffer = | |
| 3509 | (struct crypt_data *)safemalloc(sizeof(struct crypt_data)); | |
| 3510 | #if defined(__GLIBC__) || defined(__EMX__) | |
| 3511 | if (PL_reentrant_buffer->_crypt_struct_buffer) { | |
| 3512 | PL_reentrant_buffer->_crypt_struct_buffer->initialized = 0; | |
| 3513 | /* work around glibc-2.2.5 bug */ | |
| 3514 | PL_reentrant_buffer->_crypt_struct_buffer->current_saltbits = 0; | |
| 3515 | } | |
| 05404ffe | 3516 | #endif |
| 6ab58e4d | 3517 | } |
| 05404ffe JH |
3518 | # endif /* HAS_CRYPT_R */ |
| 3519 | # endif /* USE_ITHREADS */ | |
| 5f74f29c | 3520 | # ifdef FCRYPT |
| 83003860 | 3521 | sv_setpv(TARG, fcrypt(tmps, SvPV_nolen_const(right))); |
| 5f74f29c | 3522 | # else |
| 83003860 | 3523 | sv_setpv(TARG, PerlProc_crypt(tmps, SvPV_nolen_const(right))); |
| 5f74f29c | 3524 | # endif |
| ec93b65f | 3525 | SETTARG; |
| 4808266b | 3526 | RETURN; |
| 79072805 | 3527 | #else |
| b13b2135 | 3528 | DIE(aTHX_ |
| 79072805 | 3529 | "The crypt() function is unimplemented due to excessive paranoia."); |
| 9e95c635 | 3530 | return NORMAL; |
| 79072805 | 3531 | #endif |
| 79072805 LW |
3532 | } |
| 3533 | ||
| 00f254e2 KW |
3534 | /* Generally UTF-8 and UTF-EBCDIC are indistinguishable at this level. So |
| 3535 | * most comments below say UTF-8, when in fact they mean UTF-EBCDIC as well */ | |
| 3536 | ||
| 3537 | /* Both the characters below can be stored in two UTF-8 bytes. In UTF-8 the max | |
| 3538 | * character that 2 bytes can hold is U+07FF, and in UTF-EBCDIC it is U+03FF. | |
| 3539 | * See http://www.unicode.org/unicode/reports/tr16 */ | |
| 3540 | #define LATIN_CAPITAL_LETTER_Y_WITH_DIAERESIS 0x0178 /* Also is title case */ | |
| 3541 | #define GREEK_CAPITAL_LETTER_MU 0x039C /* Upper and title case of MICRON */ | |
| 3542 | ||
| 3543 | /* Below are several macros that generate code */ | |
| 3544 | /* Generates code to store a unicode codepoint c that is known to occupy | |
| 3545 | * exactly two UTF-8 and UTF-EBCDIC bytes; it is stored into p and p+1. */ | |
| 3546 | #define STORE_UNI_TO_UTF8_TWO_BYTE(p, c) \ | |
| 3547 | STMT_START { \ | |
| 3548 | *(p) = UTF8_TWO_BYTE_HI(c); \ | |
| 3549 | *((p)+1) = UTF8_TWO_BYTE_LO(c); \ | |
| 3550 | } STMT_END | |
| 3551 | ||
| 3552 | /* Like STORE_UNI_TO_UTF8_TWO_BYTE, but advances p to point to the next | |
| 3553 | * available byte after the two bytes */ | |
| 3554 | #define CAT_UNI_TO_UTF8_TWO_BYTE(p, c) \ | |
| 3555 | STMT_START { \ | |
| 3556 | *(p)++ = UTF8_TWO_BYTE_HI(c); \ | |
| 3557 | *((p)++) = UTF8_TWO_BYTE_LO(c); \ | |
| 3558 | } STMT_END | |
| 3559 | ||
| 3560 | /* Generates code to store the upper case of latin1 character l which is known | |
| 3561 | * to have its upper case be non-latin1 into the two bytes p and p+1. There | |
| 3562 | * are only two characters that fit this description, and this macro knows | |
| 3563 | * about them, and that the upper case values fit into two UTF-8 or UTF-EBCDIC | |
| 3564 | * bytes */ | |
| 3565 | #define STORE_NON_LATIN1_UC(p, l) \ | |
| 3566 | STMT_START { \ | |
| 3567 | if ((l) == LATIN_SMALL_LETTER_Y_WITH_DIAERESIS) { \ | |
| 3568 | STORE_UNI_TO_UTF8_TWO_BYTE((p), LATIN_CAPITAL_LETTER_Y_WITH_DIAERESIS); \ | |
| 3569 | } else { /* Must be the following letter */ \ | |
| 3570 | STORE_UNI_TO_UTF8_TWO_BYTE((p), GREEK_CAPITAL_LETTER_MU); \ | |
| 3571 | } \ | |
| 3572 | } STMT_END | |
| 3573 | ||
| 3574 | /* Like STORE_NON_LATIN1_UC, but advances p to point to the next available byte | |
| 3575 | * after the character stored */ | |
| 3576 | #define CAT_NON_LATIN1_UC(p, l) \ | |
| 3577 | STMT_START { \ | |
| 3578 | if ((l) == LATIN_SMALL_LETTER_Y_WITH_DIAERESIS) { \ | |
| 3579 | CAT_UNI_TO_UTF8_TWO_BYTE((p), LATIN_CAPITAL_LETTER_Y_WITH_DIAERESIS); \ | |
| 3580 | } else { \ | |
| 3581 | CAT_UNI_TO_UTF8_TWO_BYTE((p), GREEK_CAPITAL_LETTER_MU); \ | |
| 3582 | } \ | |
| 3583 | } STMT_END | |
| 3584 | ||
| 3585 | /* Generates code to add the two UTF-8 bytes (probably u) that are the upper | |
| 3586 | * case of l into p and p+1. u must be the result of toUPPER_LATIN1_MOD(l), | |
| 3587 | * and must require two bytes to store it. Advances p to point to the next | |
| 3588 | * available position */ | |
| 3589 | #define CAT_TWO_BYTE_UNI_UPPER_MOD(p, l, u) \ | |
| 3590 | STMT_START { \ | |
| 3591 | if ((u) != LATIN_SMALL_LETTER_Y_WITH_DIAERESIS) { \ | |
| 3592 | CAT_UNI_TO_UTF8_TWO_BYTE((p), (u)); /* not special, just save it */ \ | |
| 3593 | } else if (l == LATIN_SMALL_LETTER_SHARP_S) { \ | |
| 3594 | *(p)++ = 'S'; *(p)++ = 'S'; /* upper case is 'SS' */ \ | |
| 3595 | } else {/* else is one of the other two special cases */ \ | |
| 3596 | CAT_NON_LATIN1_UC((p), (l)); \ | |
| 3597 | } \ | |
| 3598 | } STMT_END | |
| 3599 | ||
| 79072805 LW |
3600 | PP(pp_ucfirst) |
| 3601 | { | |
| 00f254e2 KW |
3602 | /* Actually is both lcfirst() and ucfirst(). Only the first character |
| 3603 | * changes. This means that possibly we can change in-place, ie., just | |
| 3604 | * take the source and change that one character and store it back, but not | |
| 3605 | * if read-only etc, or if the length changes */ | |
| 3606 | ||
| 97aff369 | 3607 | dVAR; |
| 39644a26 | 3608 | dSP; |
| d54190f6 | 3609 | SV *source = TOPs; |
| 00f254e2 | 3610 | STRLEN slen; /* slen is the byte length of the whole SV. */ |
| d54190f6 NC |
3611 | STRLEN need; |
| 3612 | SV *dest; | |
| 00f254e2 KW |
3613 | bool inplace; /* ? Convert first char only, in-place */ |
| 3614 | bool doing_utf8 = FALSE; /* ? using utf8 */ | |
| 3615 | bool convert_source_to_utf8 = FALSE; /* ? need to convert */ | |
| 12e9c124 | 3616 | const int op_type = PL_op->op_type; |
| d54190f6 NC |
3617 | const U8 *s; |
| 3618 | U8 *d; | |
| 3619 | U8 tmpbuf[UTF8_MAXBYTES_CASE+1]; | |
| 00f254e2 KW |
3620 | STRLEN ulen; /* ulen is the byte length of the original Unicode character |
| 3621 | * stored as UTF-8 at s. */ | |
| 3622</ |