https://perl5.git.perl.org / perl5.git / blame
| Commit | Line | Data |
|---|---|---|
| a0d0e21e | 1 | /* pp.c |
| 79072805 | 2 | * |
| 4bb101f2 | 3 | * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
| b94e2f88 | 4 | * 2000, 2001, 2002, 2003, 2004, 2005, 2006, 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 | /* | |
| 12 | * "It's a big house this, and very peculiar. Always a bit more to discover, | |
| 13 | * and no knowing what you'll find around a corner. And Elves, sir!" --Samwise | |
| 14 | */ | |
| 79072805 | 15 | |
| 166f8a29 DM |
16 | /* This file contains general pp ("push/pop") functions that execute the |
| 17 | * opcodes that make up a perl program. A typical pp function expects to | |
| 18 | * find its arguments on the stack, and usually pushes its results onto | |
| 19 | * the stack, hence the 'pp' terminology. Each OP structure contains | |
| 20 | * a pointer to the relevant pp_foo() function. | |
| 21 | */ | |
| 22 | ||
| 79072805 | 23 | #include "EXTERN.h" |
| 864dbfa3 | 24 | #define PERL_IN_PP_C |
| 79072805 | 25 | #include "perl.h" |
| 77bc9082 | 26 | #include "keywords.h" |
| 79072805 | 27 | |
| a4af207c JH |
28 | #include "reentr.h" |
| 29 | ||
| dfe9444c AD |
30 | /* XXX I can't imagine anyone who doesn't have this actually _needs_ |
| 31 | it, since pid_t is an integral type. | |
| 32 | --AD 2/20/1998 | |
| 33 | */ | |
| 34 | #ifdef NEED_GETPID_PROTO | |
| 35 | extern Pid_t getpid (void); | |
| 8ac85365 NIS |
36 | #endif |
| 37 | ||
| 0630166f SP |
38 | /* |
| 39 | * Some BSDs and Cygwin default to POSIX math instead of IEEE. | |
| 40 | * This switches them over to IEEE. | |
| 41 | */ | |
| 42 | #if defined(LIBM_LIB_VERSION) | |
| 43 | _LIB_VERSION_TYPE _LIB_VERSION = _IEEE_; | |
| 44 | #endif | |
| 45 | ||
| 13017935 SM |
46 | /* variations on pp_null */ |
| 47 | ||
| 93a17b20 LW |
48 | PP(pp_stub) |
| 49 | { | |
| 97aff369 | 50 | dVAR; |
| 39644a26 | 51 | dSP; |
| 54310121 | 52 | if (GIMME_V == G_SCALAR) |
| 3280af22 | 53 | XPUSHs(&PL_sv_undef); |
| 93a17b20 LW |
54 | RETURN; |
| 55 | } | |
| 56 | ||
| 79072805 LW |
57 | /* Pushy stuff. */ |
| 58 | ||
| 93a17b20 LW |
59 | PP(pp_padav) |
| 60 | { | |
| 97aff369 | 61 | dVAR; dSP; dTARGET; |
| 13017935 | 62 | I32 gimme; |
| 533c011a | 63 | if (PL_op->op_private & OPpLVAL_INTRO) |
| dd2155a4 | 64 | SAVECLEARSV(PAD_SVl(PL_op->op_targ)); |
| 85e6fe83 | 65 | EXTEND(SP, 1); |
| 533c011a | 66 | if (PL_op->op_flags & OPf_REF) { |
| 85e6fe83 | 67 | PUSHs(TARG); |
| 93a17b20 | 68 | RETURN; |
| 78f9721b SM |
69 | } else if (LVRET) { |
| 70 | if (GIMME == G_SCALAR) | |
| 71 | Perl_croak(aTHX_ "Can't return array to lvalue scalar context"); | |
| 72 | PUSHs(TARG); | |
| 73 | RETURN; | |
| 85e6fe83 | 74 | } |
| 13017935 SM |
75 | gimme = GIMME_V; |
| 76 | if (gimme == G_ARRAY) { | |
| f54cb97a | 77 | const I32 maxarg = AvFILL((AV*)TARG) + 1; |
| 85e6fe83 | 78 | EXTEND(SP, maxarg); |
| 93965878 NIS |
79 | if (SvMAGICAL(TARG)) { |
| 80 | U32 i; | |
| eb160463 | 81 | for (i=0; i < (U32)maxarg; i++) { |
| 0bd48802 | 82 | SV * const * const svp = av_fetch((AV*)TARG, i, FALSE); |
| 3280af22 | 83 | SP[i+1] = (svp) ? *svp : &PL_sv_undef; |
| 93965878 NIS |
84 | } |
| 85 | } | |
| 86 | else { | |
| 87 | Copy(AvARRAY((AV*)TARG), SP+1, maxarg, SV*); | |
| 88 | } | |
| 85e6fe83 LW |
89 | SP += maxarg; |
| 90 | } | |
| 13017935 | 91 | else if (gimme == G_SCALAR) { |
| 1b6737cc | 92 | SV* const sv = sv_newmortal(); |
| f54cb97a | 93 | const I32 maxarg = AvFILL((AV*)TARG) + 1; |
| 85e6fe83 LW |
94 | sv_setiv(sv, maxarg); |
| 95 | PUSHs(sv); | |
| 96 | } | |
| 97 | RETURN; | |
| 93a17b20 LW |
98 | } |
| 99 | ||
| 100 | PP(pp_padhv) | |
| 101 | { | |
| 97aff369 | 102 | dVAR; dSP; dTARGET; |
| 54310121 | 103 | I32 gimme; |
| 104 | ||
| 93a17b20 | 105 | XPUSHs(TARG); |
| 533c011a | 106 | if (PL_op->op_private & OPpLVAL_INTRO) |
| dd2155a4 | 107 | SAVECLEARSV(PAD_SVl(PL_op->op_targ)); |
| 533c011a | 108 | if (PL_op->op_flags & OPf_REF) |
| 93a17b20 | 109 | RETURN; |
| 78f9721b SM |
110 | else if (LVRET) { |
| 111 | if (GIMME == G_SCALAR) | |
| 112 | Perl_croak(aTHX_ "Can't return hash to lvalue scalar context"); | |
| 113 | RETURN; | |
| 114 | } | |
| 54310121 | 115 | gimme = GIMME_V; |
| 116 | if (gimme == G_ARRAY) { | |
| cea2e8a9 | 117 | RETURNOP(do_kv()); |
| 85e6fe83 | 118 | } |
| 54310121 | 119 | else if (gimme == G_SCALAR) { |
| 1b6737cc | 120 | SV* const sv = Perl_hv_scalar(aTHX_ (HV*)TARG); |
| 85e6fe83 | 121 | SETs(sv); |
| 85e6fe83 | 122 | } |
| 54310121 | 123 | RETURN; |
| 93a17b20 LW |
124 | } |
| 125 | ||
| 79072805 LW |
126 | /* Translations. */ |
| 127 | ||
| 128 | PP(pp_rv2gv) | |
| 129 | { | |
| 97aff369 | 130 | dVAR; dSP; dTOPss; |
| 8ec5e241 | 131 | |
| ed6116ce | 132 | if (SvROK(sv)) { |
| a0d0e21e | 133 | wasref: |
| f5284f61 IZ |
134 | tryAMAGICunDEREF(to_gv); |
| 135 | ||
| ed6116ce | 136 | sv = SvRV(sv); |
| b1dadf13 | 137 | if (SvTYPE(sv) == SVt_PVIO) { |
| 1b6737cc | 138 | GV * const gv = (GV*) sv_newmortal(); |
| b1dadf13 | 139 | gv_init(gv, 0, "", 0, 0); |
| 140 | GvIOp(gv) = (IO *)sv; | |
| b37c2d43 | 141 | SvREFCNT_inc_void_NN(sv); |
| b1dadf13 | 142 | sv = (SV*) gv; |
| ef54e1a4 JH |
143 | } |
| 144 | else if (SvTYPE(sv) != SVt_PVGV) | |
| cea2e8a9 | 145 | DIE(aTHX_ "Not a GLOB reference"); |
| 79072805 LW |
146 | } |
| 147 | else { | |
| 93a17b20 | 148 | if (SvTYPE(sv) != SVt_PVGV) { |
| a0d0e21e LW |
149 | if (SvGMAGICAL(sv)) { |
| 150 | mg_get(sv); | |
| 151 | if (SvROK(sv)) | |
| 152 | goto wasref; | |
| 153 | } | |
| afd1915d | 154 | if (!SvOK(sv) && sv != &PL_sv_undef) { |
| b13b2135 | 155 | /* If this is a 'my' scalar and flag is set then vivify |
| 853846ea | 156 | * NI-S 1999/05/07 |
| b13b2135 | 157 | */ |
| ac53db4c DM |
158 | if (SvREADONLY(sv)) |
| 159 | Perl_croak(aTHX_ PL_no_modify); | |
| 1d8d4d2a | 160 | if (PL_op->op_private & OPpDEREF) { |
| 2c8ac474 GS |
161 | GV *gv; |
| 162 | if (cUNOP->op_targ) { | |
| 163 | STRLEN len; | |
| 0bd48802 AL |
164 | SV * const namesv = PAD_SV(cUNOP->op_targ); |
| 165 | const char * const name = SvPV(namesv, len); | |
| 561b68a9 | 166 | gv = (GV*)newSV(0); |
| 2c8ac474 GS |
167 | gv_init(gv, CopSTASH(PL_curcop), name, len, 0); |
| 168 | } | |
| 169 | else { | |
| 0bd48802 | 170 | const char * const name = CopSTASHPV(PL_curcop); |
| 2c8ac474 | 171 | gv = newGVgen(name); |
| 1d8d4d2a | 172 | } |
| b13b2135 NIS |
173 | if (SvTYPE(sv) < SVt_RV) |
| 174 | sv_upgrade(sv, SVt_RV); | |
| bc6af7f8 | 175 | else if (SvPVX_const(sv)) { |
| 8bd4d4c5 | 176 | SvPV_free(sv); |
| b162af07 SP |
177 | SvLEN_set(sv, 0); |
| 178 | SvCUR_set(sv, 0); | |
| 8f3c2c0c | 179 | } |
| b162af07 | 180 | SvRV_set(sv, (SV*)gv); |
| 853846ea | 181 | SvROK_on(sv); |
| 1d8d4d2a | 182 | SvSETMAGIC(sv); |
| 853846ea | 183 | goto wasref; |
| 2c8ac474 | 184 | } |
| 533c011a NIS |
185 | if (PL_op->op_flags & OPf_REF || |
| 186 | PL_op->op_private & HINT_STRICT_REFS) | |
| cea2e8a9 | 187 | DIE(aTHX_ PL_no_usym, "a symbol"); |
| 599cee73 | 188 | if (ckWARN(WARN_UNINITIALIZED)) |
| 29489e7c | 189 | report_uninit(sv); |
| a0d0e21e LW |
190 | RETSETUNDEF; |
| 191 | } | |
| 35cd451c GS |
192 | if ((PL_op->op_flags & OPf_SPECIAL) && |
| 193 | !(PL_op->op_flags & OPf_MOD)) | |
| 194 | { | |
| f776e3cd | 195 | SV * const temp = (SV*)gv_fetchsv(sv, 0, SVt_PVGV); |
| 7a5fd60d NC |
196 | if (!temp |
| 197 | && (!is_gv_magical_sv(sv,0) | |
| f776e3cd | 198 | || !(sv = (SV*)gv_fetchsv(sv, GV_ADD, SVt_PVGV)))) { |
| 35cd451c | 199 | RETSETUNDEF; |
| c9d5ac95 | 200 | } |
| 7a5fd60d | 201 | sv = temp; |
| 35cd451c GS |
202 | } |
| 203 | else { | |
| 204 | if (PL_op->op_private & HINT_STRICT_REFS) | |
| 7a5fd60d | 205 | DIE(aTHX_ PL_no_symref_sv, sv, "a symbol"); |
| e26df76a NC |
206 | if ((PL_op->op_private & (OPpLVAL_INTRO|OPpDONT_INIT_GV)) |
| 207 | == OPpDONT_INIT_GV) { | |
| 208 | /* We are the target of a coderef assignment. Return | |
| 209 | the scalar unchanged, and let pp_sasssign deal with | |
| 210 | things. */ | |
| 211 | RETURN; | |
| 212 | } | |
| f776e3cd | 213 | sv = (SV*)gv_fetchsv(sv, GV_ADD, SVt_PVGV); |
| 35cd451c | 214 | } |
| 93a17b20 | 215 | } |
| 79072805 | 216 | } |
| 533c011a NIS |
217 | if (PL_op->op_private & OPpLVAL_INTRO) |
| 218 | save_gp((GV*)sv, !(PL_op->op_flags & OPf_SPECIAL)); | |
| 79072805 LW |
219 | SETs(sv); |
| 220 | RETURN; | |
| 221 | } | |
| 222 | ||
| 79072805 LW |
223 | PP(pp_rv2sv) |
| 224 | { | |
| 97aff369 | 225 | dVAR; dSP; dTOPss; |
| c445ea15 | 226 | GV *gv = NULL; |
| 79072805 | 227 | |
| ed6116ce | 228 | if (SvROK(sv)) { |
| a0d0e21e | 229 | wasref: |
| f5284f61 IZ |
230 | tryAMAGICunDEREF(to_sv); |
| 231 | ||
| ed6116ce | 232 | sv = SvRV(sv); |
| 79072805 LW |
233 | switch (SvTYPE(sv)) { |
| 234 | case SVt_PVAV: | |
| 235 | case SVt_PVHV: | |
| 236 | case SVt_PVCV: | |
| cbae9b9f YST |
237 | case SVt_PVFM: |
| 238 | case SVt_PVIO: | |
| cea2e8a9 | 239 | DIE(aTHX_ "Not a SCALAR reference"); |
| 79072805 LW |
240 | } |
| 241 | } | |
| 242 | else { | |
| 82d03984 | 243 | gv = (GV*)sv; |
| 748a9306 | 244 | |
| 463ee0b2 | 245 | if (SvTYPE(gv) != SVt_PVGV) { |
| a0d0e21e LW |
246 | if (SvGMAGICAL(sv)) { |
| 247 | mg_get(sv); | |
| 248 | if (SvROK(sv)) | |
| 249 | goto wasref; | |
| 250 | } | |
| 2e6a7e23 RGS |
251 | if (PL_op->op_private & HINT_STRICT_REFS) { |
| 252 | if (SvOK(sv)) | |
| 253 | DIE(aTHX_ PL_no_symref_sv, sv, "a SCALAR"); | |
| 254 | else | |
| 255 | DIE(aTHX_ PL_no_usym, "a SCALAR"); | |
| 256 | } | |
| a0d0e21e | 257 | if (!SvOK(sv)) { |
| 2e6a7e23 | 258 | if (PL_op->op_flags & OPf_REF) |
| cea2e8a9 | 259 | DIE(aTHX_ PL_no_usym, "a SCALAR"); |
| 599cee73 | 260 | if (ckWARN(WARN_UNINITIALIZED)) |
| 29489e7c | 261 | report_uninit(sv); |
| a0d0e21e LW |
262 | RETSETUNDEF; |
| 263 | } | |
| 35cd451c GS |
264 | if ((PL_op->op_flags & OPf_SPECIAL) && |
| 265 | !(PL_op->op_flags & OPf_MOD)) | |
| 266 | { | |
| f776e3cd | 267 | gv = (GV*)gv_fetchsv(sv, 0, SVt_PV); |
| c9d5ac95 | 268 | if (!gv |
| 7a5fd60d | 269 | && (!is_gv_magical_sv(sv, 0) |
| f776e3cd | 270 | || !(gv = (GV*)gv_fetchsv(sv, GV_ADD, SVt_PV)))) |
| c9d5ac95 | 271 | { |
| 35cd451c | 272 | RETSETUNDEF; |
| c9d5ac95 | 273 | } |
| 35cd451c GS |
274 | } |
| 275 | else { | |
| f776e3cd | 276 | gv = (GV*)gv_fetchsv(sv, GV_ADD, SVt_PV); |
| 35cd451c | 277 | } |
| 463ee0b2 | 278 | } |
| 29c711a3 | 279 | sv = GvSVn(gv); |
| a0d0e21e | 280 | } |
| 533c011a | 281 | if (PL_op->op_flags & OPf_MOD) { |
| 82d03984 RGS |
282 | if (PL_op->op_private & OPpLVAL_INTRO) { |
| 283 | if (cUNOP->op_first->op_type == OP_NULL) | |
| 284 | sv = save_scalar((GV*)TOPs); | |
| 285 | else if (gv) | |
| 286 | sv = save_scalar(gv); | |
| 287 | else | |
| 288 | Perl_croak(aTHX_ PL_no_localize_ref); | |
| 289 | } | |
| 533c011a NIS |
290 | else if (PL_op->op_private & OPpDEREF) |
| 291 | vivify_ref(sv, PL_op->op_private & OPpDEREF); | |
| 79072805 | 292 | } |
| a0d0e21e | 293 | SETs(sv); |
| 79072805 LW |
294 | RETURN; |
| 295 | } | |
| 296 | ||
| 297 | PP(pp_av2arylen) | |
| 298 | { | |
| 97aff369 | 299 | dVAR; dSP; |
| 1b6737cc AL |
300 | AV * const av = (AV*)TOPs; |
| 301 | SV ** const sv = Perl_av_arylen_p(aTHX_ (AV*)av); | |
| a3874608 | 302 | if (!*sv) { |
| 561b68a9 | 303 | *sv = newSV(0); |
| a3874608 | 304 | sv_upgrade(*sv, SVt_PVMG); |
| c445ea15 | 305 | sv_magic(*sv, (SV*)av, PERL_MAGIC_arylen, NULL, 0); |
| 79072805 | 306 | } |
| a3874608 | 307 | SETs(*sv); |
| 79072805 LW |
308 | RETURN; |
| 309 | } | |
| 310 | ||
| a0d0e21e LW |
311 | PP(pp_pos) |
| 312 | { | |
| 97aff369 | 313 | dVAR; dSP; dTARGET; dPOPss; |
| 8ec5e241 | 314 | |
| 78f9721b | 315 | if (PL_op->op_flags & OPf_MOD || LVRET) { |
| 5f05dabc | 316 | if (SvTYPE(TARG) < SVt_PVLV) { |
| 317 | sv_upgrade(TARG, SVt_PVLV); | |
| c445ea15 | 318 | sv_magic(TARG, NULL, PERL_MAGIC_pos, NULL, 0); |
| 5f05dabc | 319 | } |
| 320 | ||
| 321 | LvTYPE(TARG) = '.'; | |
| 6ff81951 GS |
322 | if (LvTARG(TARG) != sv) { |
| 323 | if (LvTARG(TARG)) | |
| 324 | SvREFCNT_dec(LvTARG(TARG)); | |
| b37c2d43 | 325 | LvTARG(TARG) = SvREFCNT_inc_simple(sv); |
| 6ff81951 | 326 | } |
| a0d0e21e LW |
327 | PUSHs(TARG); /* no SvSETMAGIC */ |
| 328 | RETURN; | |
| 329 | } | |
| 330 | else { | |
| a0d0e21e | 331 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) { |
| 1b6737cc | 332 | const MAGIC * const mg = mg_find(sv, PERL_MAGIC_regex_global); |
| 565764a8 | 333 | if (mg && mg->mg_len >= 0) { |
| a0ed51b3 | 334 | I32 i = mg->mg_len; |
| 7e2040f0 | 335 | if (DO_UTF8(sv)) |
| a0ed51b3 | 336 | sv_pos_b2u(sv, &i); |
| fc15ae8f | 337 | PUSHi(i + CopARYBASE_get(PL_curcop)); |
| a0d0e21e LW |
338 | RETURN; |
| 339 | } | |
| 340 | } | |
| 341 | RETPUSHUNDEF; | |
| 342 | } | |
| 343 | } | |
| 344 | ||
| 79072805 LW |
345 | PP(pp_rv2cv) |
| 346 | { | |
| 97aff369 | 347 | dVAR; dSP; |
| 79072805 | 348 | GV *gv; |
| 1eced8f8 | 349 | HV *stash_unused; |
| c445ea15 AL |
350 | const I32 flags = (PL_op->op_flags & OPf_SPECIAL) |
| 351 | ? 0 | |
| 352 | : ((PL_op->op_private & (OPpLVAL_INTRO|OPpMAY_RETURN_CONSTANT)) == OPpMAY_RETURN_CONSTANT) | |
| 353 | ? GV_ADD|GV_NOEXPAND | |
| 354 | : GV_ADD; | |
| 4633a7c4 LW |
355 | /* We usually try to add a non-existent subroutine in case of AUTOLOAD. */ |
| 356 | /* (But not in defined().) */ | |
| e26df76a | 357 | |
| 1eced8f8 | 358 | CV *cv = sv_2cv(TOPs, &stash_unused, &gv, flags); |
| 07055b4c CS |
359 | if (cv) { |
| 360 | if (CvCLONE(cv)) | |
| 361 | cv = (CV*)sv_2mortal((SV*)cv_clone(cv)); | |
| d32f2495 SC |
362 | if ((PL_op->op_private & OPpLVAL_INTRO)) { |
| 363 | if (gv && GvCV(gv) == cv && (gv = gv_autoload4(GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv), FALSE))) | |
| 364 | cv = GvCV(gv); | |
| 365 | if (!CvLVALUE(cv)) | |
| 366 | DIE(aTHX_ "Can't modify non-lvalue subroutine call"); | |
| 367 | } | |
| 07055b4c | 368 | } |
| e26df76a NC |
369 | else if ((flags == (GV_ADD|GV_NOEXPAND)) && gv && SvROK(gv)) { |
| 370 | cv = (CV*)gv; | |
| 371 | } | |
| 07055b4c | 372 | else |
| 3280af22 | 373 | cv = (CV*)&PL_sv_undef; |
| 79072805 LW |
374 | SETs((SV*)cv); |
| 375 | RETURN; | |
| 376 | } | |
| 377 | ||
| c07a80fd | 378 | PP(pp_prototype) |
| 379 | { | |
| 97aff369 | 380 | dVAR; dSP; |
| c07a80fd | 381 | CV *cv; |
| 382 | HV *stash; | |
| 383 | GV *gv; | |
| fabdb6c0 | 384 | SV *ret = &PL_sv_undef; |
| c07a80fd | 385 | |
| b6c543e3 | 386 | if (SvPOK(TOPs) && SvCUR(TOPs) >= 7) { |
| 0bd48802 | 387 | const char * const s = SvPVX_const(TOPs); |
| b6c543e3 | 388 | if (strnEQ(s, "CORE::", 6)) { |
| f54cb97a | 389 | const int code = keyword(s + 6, SvCUR(TOPs) - 6); |
| b6c543e3 IZ |
390 | if (code < 0) { /* Overridable. */ |
| 391 | #define MAX_ARGS_OP ((sizeof(I32) - 1) * 2) | |
| 392 | int i = 0, n = 0, seen_question = 0; | |
| 393 | I32 oa; | |
| 394 | char str[ MAX_ARGS_OP * 2 + 2 ]; /* One ';', one '\0' */ | |
| 395 | ||
| bdf1bb36 RGS |
396 | if (code == -KEY_chop || code == -KEY_chomp |
| 397 | || code == -KEY_exec || code == -KEY_system) | |
| 77bc9082 | 398 | goto set; |
| b6c543e3 | 399 | while (i < MAXO) { /* The slow way. */ |
| 22c35a8c GS |
400 | if (strEQ(s + 6, PL_op_name[i]) |
| 401 | || strEQ(s + 6, PL_op_desc[i])) | |
| 402 | { | |
| b6c543e3 | 403 | goto found; |
| 22c35a8c | 404 | } |
| b6c543e3 IZ |
405 | i++; |
| 406 | } | |
| 407 | goto nonesuch; /* Should not happen... */ | |
| 408 | found: | |
| 22c35a8c | 409 | oa = PL_opargs[i] >> OASHIFT; |
| b6c543e3 | 410 | while (oa) { |
| 3012a639 | 411 | if (oa & OA_OPTIONAL && !seen_question) { |
| b6c543e3 IZ |
412 | seen_question = 1; |
| 413 | str[n++] = ';'; | |
| ef54e1a4 | 414 | } |
| b13b2135 | 415 | if ((oa & (OA_OPTIONAL - 1)) >= OA_AVREF |
| 6e97e420 SC |
416 | && (oa & (OA_OPTIONAL - 1)) <= OA_SCALARREF |
| 417 | /* But globs are already references (kinda) */ | |
| 418 | && (oa & (OA_OPTIONAL - 1)) != OA_FILEREF | |
| 419 | ) { | |
| b6c543e3 IZ |
420 | str[n++] = '\\'; |
| 421 | } | |
| b6c543e3 IZ |
422 | str[n++] = ("?$@@%&*$")[oa & (OA_OPTIONAL - 1)]; |
| 423 | oa = oa >> 4; | |
| 424 | } | |
| 425 | str[n++] = '\0'; | |
| 79cb57f6 | 426 | ret = sv_2mortal(newSVpvn(str, n - 1)); |
| ef54e1a4 JH |
427 | } |
| 428 | else if (code) /* Non-Overridable */ | |
| b6c543e3 IZ |
429 | goto set; |
| 430 | else { /* None such */ | |
| 431 | nonesuch: | |
| d470f89e | 432 | DIE(aTHX_ "Can't find an opnumber for \"%s\"", s+6); |
| b6c543e3 IZ |
433 | } |
| 434 | } | |
| 435 | } | |
| f2c0649b | 436 | cv = sv_2cv(TOPs, &stash, &gv, 0); |
| 5f05dabc | 437 | if (cv && SvPOK(cv)) |
| b15aece3 | 438 | ret = sv_2mortal(newSVpvn(SvPVX_const(cv), SvCUR(cv))); |
| b6c543e3 | 439 | set: |
| c07a80fd | 440 | SETs(ret); |
| 441 | RETURN; | |
| 442 | } | |
| 443 | ||
| a0d0e21e LW |
444 | PP(pp_anoncode) |
| 445 | { | |
| 97aff369 | 446 | dVAR; dSP; |
| dd2155a4 | 447 | CV* cv = (CV*)PAD_SV(PL_op->op_targ); |
| a5f75d66 | 448 | if (CvCLONE(cv)) |
| b355b4e0 | 449 | cv = (CV*)sv_2mortal((SV*)cv_clone(cv)); |
| 5f05dabc | 450 | EXTEND(SP,1); |
| 748a9306 | 451 | PUSHs((SV*)cv); |
| a0d0e21e LW |
452 | RETURN; |
| 453 | } | |
| 454 | ||
| 455 | PP(pp_srefgen) | |
| 79072805 | 456 | { |
| 97aff369 | 457 | dVAR; dSP; |
| 71be2cbc | 458 | *SP = refto(*SP); |
| 79072805 | 459 | RETURN; |
| 8ec5e241 | 460 | } |
| a0d0e21e LW |
461 | |
| 462 | PP(pp_refgen) | |
| 463 | { | |
| 97aff369 | 464 | dVAR; dSP; dMARK; |
| a0d0e21e | 465 | if (GIMME != G_ARRAY) { |
| 5f0b1d4e GS |
466 | if (++MARK <= SP) |
| 467 | *MARK = *SP; | |
| 468 | else | |
| 3280af22 | 469 | *MARK = &PL_sv_undef; |
| 5f0b1d4e GS |
470 | *MARK = refto(*MARK); |
| 471 | SP = MARK; | |
| 472 | RETURN; | |
| a0d0e21e | 473 | } |
| bbce6d69 | 474 | EXTEND_MORTAL(SP - MARK); |
| 71be2cbc | 475 | while (++MARK <= SP) |
| 476 | *MARK = refto(*MARK); | |
| a0d0e21e | 477 | RETURN; |
| 79072805 LW |
478 | } |
| 479 | ||
| 76e3520e | 480 | STATIC SV* |
| cea2e8a9 | 481 | S_refto(pTHX_ SV *sv) |
| 71be2cbc | 482 | { |
| 97aff369 | 483 | dVAR; |
| 71be2cbc | 484 | SV* rv; |
| 485 | ||
| 486 | if (SvTYPE(sv) == SVt_PVLV && LvTYPE(sv) == 'y') { | |
| 487 | if (LvTARGLEN(sv)) | |
| 68dc0745 | 488 | vivify_defelem(sv); |
| 489 | if (!(sv = LvTARG(sv))) | |
| 3280af22 | 490 | sv = &PL_sv_undef; |
| 0dd88869 | 491 | else |
| b37c2d43 | 492 | SvREFCNT_inc_void_NN(sv); |
| 71be2cbc | 493 | } |
| d8b46c1b GS |
494 | else if (SvTYPE(sv) == SVt_PVAV) { |
| 495 | if (!AvREAL((AV*)sv) && AvREIFY((AV*)sv)) | |
| 496 | av_reify((AV*)sv); | |
| 497 | SvTEMP_off(sv); | |
| b37c2d43 | 498 | SvREFCNT_inc_void_NN(sv); |
| d8b46c1b | 499 | } |
| f2933f5f DM |
500 | else if (SvPADTMP(sv) && !IS_PADGV(sv)) |
| 501 | sv = newSVsv(sv); | |
| 71be2cbc | 502 | else { |
| 503 | SvTEMP_off(sv); | |
| b37c2d43 | 504 | SvREFCNT_inc_void_NN(sv); |
| 71be2cbc | 505 | } |
| 506 | rv = sv_newmortal(); | |
| 507 | sv_upgrade(rv, SVt_RV); | |
| b162af07 | 508 | SvRV_set(rv, sv); |
| 71be2cbc | 509 | SvROK_on(rv); |
| 510 | return rv; | |
| 511 | } | |
| 512 | ||
| 79072805 LW |
513 | PP(pp_ref) |
| 514 | { | |
| 97aff369 | 515 | dVAR; dSP; dTARGET; |
| e1ec3a88 | 516 | const char *pv; |
| 1b6737cc | 517 | SV * const sv = POPs; |
| f12c7020 | 518 | |
| 5b295bef RD |
519 | if (sv) |
| 520 | SvGETMAGIC(sv); | |
| f12c7020 | 521 | |
| a0d0e21e | 522 | if (!sv || !SvROK(sv)) |
| 4633a7c4 | 523 | RETPUSHNO; |
| 79072805 | 524 | |
| 1b6737cc | 525 | pv = sv_reftype(SvRV(sv),TRUE); |
| 463ee0b2 | 526 | PUSHp(pv, strlen(pv)); |
| 79072805 LW |
527 | RETURN; |
| 528 | } | |
| 529 | ||
| 530 | PP(pp_bless) | |
| 531 | { | |
| 97aff369 | 532 | dVAR; dSP; |
| 463ee0b2 | 533 | HV *stash; |
| 79072805 | 534 | |
| 463ee0b2 | 535 | if (MAXARG == 1) |
| 11faa288 | 536 | stash = CopSTASH(PL_curcop); |
| 7b8d334a | 537 | else { |
| 1b6737cc | 538 | SV * const ssv = POPs; |
| 7b8d334a | 539 | STRLEN len; |
| e1ec3a88 | 540 | const char *ptr; |
| 81689caa | 541 | |
| 016a42f3 | 542 | if (ssv && !SvGMAGICAL(ssv) && !SvAMAGIC(ssv) && SvROK(ssv)) |
| 81689caa | 543 | Perl_croak(aTHX_ "Attempt to bless into a reference"); |
| 5c144d81 | 544 | ptr = SvPV_const(ssv,len); |
| 041457d9 | 545 | if (len == 0 && ckWARN(WARN_MISC)) |
| 9014280d | 546 | Perl_warner(aTHX_ packWARN(WARN_MISC), |
| 599cee73 | 547 | "Explicit blessing to '' (assuming package main)"); |
| 7b8d334a GS |
548 | stash = gv_stashpvn(ptr, len, TRUE); |
| 549 | } | |
| a0d0e21e | 550 | |
| 5d3fdfeb | 551 | (void)sv_bless(TOPs, stash); |
| 79072805 LW |
552 | RETURN; |
| 553 | } | |
| 554 | ||
| fb73857a | 555 | PP(pp_gelem) |
| 556 | { | |
| 97aff369 | 557 | dVAR; dSP; |
| b13b2135 | 558 | |
| 1b6737cc AL |
559 | SV *sv = POPs; |
| 560 | const char * const elem = SvPV_nolen_const(sv); | |
| 561 | GV * const gv = (GV*)POPs; | |
| c445ea15 | 562 | SV * tmpRef = NULL; |
| 1b6737cc | 563 | |
| c445ea15 | 564 | sv = NULL; |
| c4ba80c3 NC |
565 | if (elem) { |
| 566 | /* elem will always be NUL terminated. */ | |
| 1b6737cc | 567 | const char * const second_letter = elem + 1; |
| c4ba80c3 NC |
568 | switch (*elem) { |
| 569 | case 'A': | |
| 1b6737cc | 570 | if (strEQ(second_letter, "RRAY")) |
| c4ba80c3 NC |
571 | tmpRef = (SV*)GvAV(gv); |
| 572 | break; | |
| 573 | case 'C': | |
| 1b6737cc | 574 | if (strEQ(second_letter, "ODE")) |
| c4ba80c3 NC |
575 | tmpRef = (SV*)GvCVu(gv); |
| 576 | break; | |
| 577 | case 'F': | |
| 1b6737cc | 578 | if (strEQ(second_letter, "ILEHANDLE")) { |
| c4ba80c3 NC |
579 | /* finally deprecated in 5.8.0 */ |
| 580 | deprecate("*glob{FILEHANDLE}"); | |
| 581 | tmpRef = (SV*)GvIOp(gv); | |
| 582 | } | |
| 583 | else | |
| 1b6737cc | 584 | if (strEQ(second_letter, "ORMAT")) |
| c4ba80c3 NC |
585 | tmpRef = (SV*)GvFORM(gv); |
| 586 | break; | |
| 587 | case 'G': | |
| 1b6737cc | 588 | if (strEQ(second_letter, "LOB")) |
| c4ba80c3 NC |
589 | tmpRef = (SV*)gv; |
| 590 | break; | |
| 591 | case 'H': | |
| 1b6737cc | 592 | if (strEQ(second_letter, "ASH")) |
| c4ba80c3 NC |
593 | tmpRef = (SV*)GvHV(gv); |
| 594 | break; | |
| 595 | case 'I': | |
| 1b6737cc | 596 | if (*second_letter == 'O' && !elem[2]) |
| c4ba80c3 NC |
597 | tmpRef = (SV*)GvIOp(gv); |
| 598 | break; | |
| 599 | case 'N': | |
| 1b6737cc | 600 | if (strEQ(second_letter, "AME")) |
| c4ba80c3 NC |
601 | sv = newSVpvn(GvNAME(gv), GvNAMELEN(gv)); |
| 602 | break; | |
| 603 | case 'P': | |
| 1b6737cc | 604 | if (strEQ(second_letter, "ACKAGE")) { |
| 7fa3a4ab NC |
605 | const HV * const stash = GvSTASH(gv); |
| 606 | const HEK * const hek = stash ? HvNAME_HEK(stash) : NULL; | |
| 396482e1 | 607 | sv = hek ? newSVhek(hek) : newSVpvs("__ANON__"); |
| c4ba80c3 NC |
608 | } |
| 609 | break; | |
| 610 | case 'S': | |
| 1b6737cc | 611 | if (strEQ(second_letter, "CALAR")) |
| f9d52e31 | 612 | tmpRef = GvSVn(gv); |
| c4ba80c3 | 613 | break; |
| 39b99f21 | 614 | } |
| fb73857a | 615 | } |
| 76e3520e GS |
616 | if (tmpRef) |
| 617 | sv = newRV(tmpRef); | |
| fb73857a | 618 | if (sv) |
| 619 | sv_2mortal(sv); | |
| 620 | else | |
| 3280af22 | 621 | sv = &PL_sv_undef; |
| fb73857a | 622 | XPUSHs(sv); |
| 623 | RETURN; | |
| 624 | } | |
| 625 | ||
| a0d0e21e | 626 | /* Pattern matching */ |
| 79072805 | 627 | |
| a0d0e21e | 628 | PP(pp_study) |
| 79072805 | 629 | { |
| 97aff369 | 630 | dVAR; dSP; dPOPss; |
| a0d0e21e LW |
631 | register unsigned char *s; |
| 632 | register I32 pos; | |
| 633 | register I32 ch; | |
| 634 | register I32 *sfirst; | |
| 635 | register I32 *snext; | |
| a0d0e21e LW |
636 | STRLEN len; |
| 637 | ||
| 3280af22 | 638 | if (sv == PL_lastscream) { |
| 1e422769 | 639 | if (SvSCREAM(sv)) |
| 640 | RETPUSHYES; | |
| 641 | } | |
| a4f4e906 NC |
642 | s = (unsigned char*)(SvPV(sv, len)); |
| 643 | pos = len; | |
| 644 | if (pos <= 0 || !SvPOK(sv)) { | |
| 645 | /* No point in studying a zero length string, and not safe to study | |
| 646 | anything that doesn't appear to be a simple scalar (and hence might | |
| 647 | change between now and when the regexp engine runs without our set | |
| bd473224 | 648 | magic ever running) such as a reference to an object with overloaded |
| a4f4e906 NC |
649 | stringification. */ |
| 650 | RETPUSHNO; | |
| 651 | } | |
| 652 | ||
| 653 | if (PL_lastscream) { | |
| 654 | SvSCREAM_off(PL_lastscream); | |
| 655 | SvREFCNT_dec(PL_lastscream); | |
| c07a80fd | 656 | } |
| b37c2d43 | 657 | PL_lastscream = SvREFCNT_inc_simple(sv); |
| 1e422769 | 658 | |
| 659 | s = (unsigned char*)(SvPV(sv, len)); | |
| 660 | pos = len; | |
| 661 | if (pos <= 0) | |
| 662 | RETPUSHNO; | |
| 3280af22 NIS |
663 | if (pos > PL_maxscream) { |
| 664 | if (PL_maxscream < 0) { | |
| 665 | PL_maxscream = pos + 80; | |
| a02a5408 JC |
666 | Newx(PL_screamfirst, 256, I32); |
| 667 | Newx(PL_screamnext, PL_maxscream, I32); | |
| 79072805 LW |
668 | } |
| 669 | else { | |
| 3280af22 NIS |
670 | PL_maxscream = pos + pos / 4; |
| 671 | Renew(PL_screamnext, PL_maxscream, I32); | |
| 79072805 | 672 | } |
| 79072805 | 673 | } |
| a0d0e21e | 674 | |
| 3280af22 NIS |
675 | sfirst = PL_screamfirst; |
| 676 | snext = PL_screamnext; | |
| a0d0e21e LW |
677 | |
| 678 | if (!sfirst || !snext) | |
| cea2e8a9 | 679 | DIE(aTHX_ "do_study: out of memory"); |
| a0d0e21e LW |
680 | |
| 681 | for (ch = 256; ch; --ch) | |
| 682 | *sfirst++ = -1; | |
| 683 | sfirst -= 256; | |
| 684 | ||
| 685 | while (--pos >= 0) { | |
| 1b6737cc | 686 | register const I32 ch = s[pos]; |
| a0d0e21e LW |
687 | if (sfirst[ch] >= 0) |
| 688 | snext[pos] = sfirst[ch] - pos; | |
| 689 | else | |
| 690 | snext[pos] = -pos; | |
| 691 | sfirst[ch] = pos; | |
| 79072805 LW |
692 | } |
| 693 | ||
| c07a80fd | 694 | SvSCREAM_on(sv); |
| 14befaf4 | 695 | /* piggyback on m//g magic */ |
| c445ea15 | 696 | sv_magic(sv, NULL, PERL_MAGIC_regex_global, NULL, 0); |
| 1e422769 | 697 | RETPUSHYES; |
| 79072805 LW |
698 | } |
| 699 | ||
| a0d0e21e | 700 | PP(pp_trans) |
| 79072805 | 701 | { |
| 97aff369 | 702 | dVAR; dSP; dTARG; |
| a0d0e21e LW |
703 | SV *sv; |
| 704 | ||
| 533c011a | 705 | if (PL_op->op_flags & OPf_STACKED) |
| a0d0e21e | 706 | sv = POPs; |
| 59f00321 RGS |
707 | else if (PL_op->op_private & OPpTARGET_MY) |
| 708 | sv = GETTARGET; | |
| 79072805 | 709 | else { |
| 54b9620d | 710 | sv = DEFSV; |
| a0d0e21e | 711 | EXTEND(SP,1); |
| 79072805 | 712 | } |
| adbc6bb1 | 713 | TARG = sv_newmortal(); |
| 4757a243 | 714 | PUSHi(do_trans(sv)); |
| a0d0e21e | 715 | RETURN; |
| 79072805 LW |
716 | } |
| 717 | ||
| a0d0e21e | 718 | /* Lvalue operators. */ |
| 79072805 | 719 | |
| a0d0e21e LW |
720 | PP(pp_schop) |
| 721 | { | |
| 97aff369 | 722 | dVAR; dSP; dTARGET; |
| a0d0e21e LW |
723 | do_chop(TARG, TOPs); |
| 724 | SETTARG; | |
| 725 | RETURN; | |
| 79072805 LW |
726 | } |
| 727 | ||
| a0d0e21e | 728 | PP(pp_chop) |
| 79072805 | 729 | { |
| 97aff369 | 730 | dVAR; dSP; dMARK; dTARGET; dORIGMARK; |
| 2ec6af5f RG |
731 | while (MARK < SP) |
| 732 | do_chop(TARG, *++MARK); | |
| 733 | SP = ORIGMARK; | |
| b59aed67 | 734 | XPUSHTARG; |
| a0d0e21e | 735 | RETURN; |
| 79072805 LW |
736 | } |
| 737 | ||
| a0d0e21e | 738 | PP(pp_schomp) |
| 79072805 | 739 | { |
| 97aff369 | 740 | dVAR; dSP; dTARGET; |
| a0d0e21e LW |
741 | SETi(do_chomp(TOPs)); |
| 742 | RETURN; | |
| 79072805 LW |
743 | } |
| 744 | ||
| a0d0e21e | 745 | PP(pp_chomp) |
| 79072805 | 746 | { |
| 97aff369 | 747 | dVAR; dSP; dMARK; dTARGET; |
| a0d0e21e | 748 | register I32 count = 0; |
| 8ec5e241 | 749 | |
| a0d0e21e LW |
750 | while (SP > MARK) |
| 751 | count += do_chomp(POPs); | |
| b59aed67 | 752 | XPUSHi(count); |
| a0d0e21e | 753 | RETURN; |
| 79072805 LW |
754 | } |
| 755 | ||
| a0d0e21e LW |
756 | PP(pp_undef) |
| 757 | { | |
| 97aff369 | 758 | dVAR; dSP; |
| a0d0e21e LW |
759 | SV *sv; |
| 760 | ||
| 533c011a | 761 | if (!PL_op->op_private) { |
| 774d564b | 762 | EXTEND(SP, 1); |
| a0d0e21e | 763 | RETPUSHUNDEF; |
| 774d564b | 764 | } |
| 79072805 | 765 | |
| a0d0e21e LW |
766 | sv = POPs; |
| 767 | if (!sv) | |
| 768 | RETPUSHUNDEF; | |
| 85e6fe83 | 769 | |
| 765f542d | 770 | SV_CHECK_THINKFIRST_COW_DROP(sv); |
| 85e6fe83 | 771 | |
| a0d0e21e LW |
772 | switch (SvTYPE(sv)) { |
| 773 | case SVt_NULL: | |
| 774 | break; | |
| 775 | case SVt_PVAV: | |
| 776 | av_undef((AV*)sv); | |
| 777 | break; | |
| 778 | case SVt_PVHV: | |
| 779 | hv_undef((HV*)sv); | |
| 780 | break; | |
| 781 | case SVt_PVCV: | |
| 041457d9 | 782 | if (cv_const_sv((CV*)sv) && ckWARN(WARN_MISC)) |
| 9014280d | 783 | Perl_warner(aTHX_ packWARN(WARN_MISC), "Constant subroutine %s undefined", |
| 54310121 | 784 | CvANON((CV*)sv) ? "(anonymous)" : GvENAME(CvGV((CV*)sv))); |
| 5f66b61c | 785 | /* FALLTHROUGH */ |
| 9607fc9c | 786 | case SVt_PVFM: |
| 6fc92669 GS |
787 | { |
| 788 | /* let user-undef'd sub keep its identity */ | |
| 0bd48802 | 789 | GV* const gv = CvGV((CV*)sv); |
| 6fc92669 GS |
790 | cv_undef((CV*)sv); |
| 791 | CvGV((CV*)sv) = gv; | |
| 792 | } | |
| a0d0e21e | 793 | break; |
| 8e07c86e | 794 | case SVt_PVGV: |
| 44a8e56a | 795 | if (SvFAKE(sv)) |
| 3280af22 | 796 | SvSetMagicSV(sv, &PL_sv_undef); |
| 20408e3c GS |
797 | else { |
| 798 | GP *gp; | |
| 799 | gp_free((GV*)sv); | |
| a02a5408 | 800 | Newxz(gp, 1, GP); |
| 20408e3c | 801 | GvGP(sv) = gp_ref(gp); |
| 561b68a9 | 802 | GvSV(sv) = newSV(0); |
| 57843af0 | 803 | GvLINE(sv) = CopLINE(PL_curcop); |
| 20408e3c GS |
804 | GvEGV(sv) = (GV*)sv; |
| 805 | GvMULTI_on(sv); | |
| 806 | } | |
| 44a8e56a | 807 | break; |
| a0d0e21e | 808 | default: |
| b15aece3 | 809 | if (SvTYPE(sv) >= SVt_PV && SvPVX_const(sv) && SvLEN(sv)) { |
| 8bd4d4c5 | 810 | SvPV_free(sv); |
| c445ea15 | 811 | SvPV_set(sv, NULL); |
| 4633a7c4 | 812 | SvLEN_set(sv, 0); |
| a0d0e21e | 813 | } |
| 0c34ef67 | 814 | SvOK_off(sv); |
| 4633a7c4 | 815 | SvSETMAGIC(sv); |
| 79072805 | 816 | } |
| a0d0e21e LW |
817 | |
| 818 | RETPUSHUNDEF; | |
| 79072805 LW |
819 | } |
| 820 | ||
| a0d0e21e | 821 | PP(pp_predec) |
| 79072805 | 822 | { |
| 97aff369 | 823 | dVAR; dSP; |
| f39684df | 824 | if (SvTYPE(TOPs) >= SVt_PVGV && SvTYPE(TOPs) != SVt_PVLV) |
| d470f89e | 825 | DIE(aTHX_ PL_no_modify); |
| 3510b4a1 NC |
826 | if (!SvREADONLY(TOPs) && SvIOK_notUV(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) |
| 827 | && SvIVX(TOPs) != IV_MIN) | |
| 55497cff | 828 | { |
| 45977657 | 829 | SvIV_set(TOPs, SvIVX(TOPs) - 1); |
| 55497cff | 830 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
| 748a9306 LW |
831 | } |
| 832 | else | |
| 833 | sv_dec(TOPs); | |
| a0d0e21e LW |
834 | SvSETMAGIC(TOPs); |
| 835 | return NORMAL; | |
| 836 | } | |
| 79072805 | 837 | |
| a0d0e21e LW |
838 | PP(pp_postinc) |
| 839 | { | |
| 97aff369 | 840 | dVAR; dSP; dTARGET; |
| f39684df | 841 | if (SvTYPE(TOPs) >= SVt_PVGV && SvTYPE(TOPs) != SVt_PVLV) |
| d470f89e | 842 | DIE(aTHX_ PL_no_modify); |
| a0d0e21e | 843 | sv_setsv(TARG, TOPs); |
| 3510b4a1 NC |
844 | if (!SvREADONLY(TOPs) && SvIOK_notUV(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) |
| 845 | && SvIVX(TOPs) != IV_MAX) | |
| 55497cff | 846 | { |
| 45977657 | 847 | SvIV_set(TOPs, SvIVX(TOPs) + 1); |
| 55497cff | 848 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
| 748a9306 LW |
849 | } |
| 850 | else | |
| 851 | sv_inc(TOPs); | |
| a0d0e21e | 852 | SvSETMAGIC(TOPs); |
| 1e54a23f | 853 | /* special case for undef: see thread at 2003-03/msg00536.html in archive */ |
| a0d0e21e LW |
854 | if (!SvOK(TARG)) |
| 855 | sv_setiv(TARG, 0); | |
| 856 | SETs(TARG); | |
| 857 | return NORMAL; | |
| 858 | } | |
| 79072805 | 859 | |
| a0d0e21e LW |
860 | PP(pp_postdec) |
| 861 | { | |
| 97aff369 | 862 | dVAR; dSP; dTARGET; |
| f39684df | 863 | if (SvTYPE(TOPs) >= SVt_PVGV && SvTYPE(TOPs) != SVt_PVLV) |
| d470f89e | 864 | DIE(aTHX_ PL_no_modify); |
| a0d0e21e | 865 | sv_setsv(TARG, TOPs); |
| 3510b4a1 NC |
866 | if (!SvREADONLY(TOPs) && SvIOK_notUV(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) |
| 867 | && SvIVX(TOPs) != IV_MIN) | |
| 55497cff | 868 | { |
| 45977657 | 869 | SvIV_set(TOPs, SvIVX(TOPs) - 1); |
| 55497cff | 870 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
| 748a9306 LW |
871 | } |
| 872 | else | |
| 873 | sv_dec(TOPs); | |
| a0d0e21e LW |
874 | SvSETMAGIC(TOPs); |
| 875 | SETs(TARG); | |
| 876 | return NORMAL; | |
| 877 | } | |
| 79072805 | 878 | |
| a0d0e21e LW |
879 | /* Ordinary operators. */ |
| 880 | ||
| 881 | PP(pp_pow) | |
| 882 | { | |
| 97aff369 | 883 | dVAR; dSP; dATARGET; |
| 58d76dfd | 884 | #ifdef PERL_PRESERVE_IVUV |
| 52a96ae6 HS |
885 | bool is_int = 0; |
| 886 | #endif | |
| 887 | tryAMAGICbin(pow,opASSIGN); | |
| 888 | #ifdef PERL_PRESERVE_IVUV | |
| 889 | /* For integer to integer power, we do the calculation by hand wherever | |
| 890 | we're sure it is safe; otherwise we call pow() and try to convert to | |
| 891 | integer afterwards. */ | |
| 58d76dfd | 892 | { |
| 900658e3 PF |
893 | SvIV_please(TOPs); |
| 894 | if (SvIOK(TOPs)) { | |
| 895 | SvIV_please(TOPm1s); | |
| 896 | if (SvIOK(TOPm1s)) { | |
| 897 | UV power; | |
| 898 | bool baseuok; | |
| 899 | UV baseuv; | |
| 900 | ||
| 901 | if (SvUOK(TOPs)) { | |
| 902 | power = SvUVX(TOPs); | |
| 903 | } else { | |
| 904 | const IV iv = SvIVX(TOPs); | |
| 905 | if (iv >= 0) { | |
| 906 | power = iv; | |
| 907 | } else { | |
| 908 | goto float_it; /* Can't do negative powers this way. */ | |
| 909 | } | |
| 910 | } | |
| 911 | ||
| 912 | baseuok = SvUOK(TOPm1s); | |
| 913 | if (baseuok) { | |
| 914 | baseuv = SvUVX(TOPm1s); | |
| 915 | } else { | |
| 916 | const IV iv = SvIVX(TOPm1s); | |
| 917 | if (iv >= 0) { | |
| 918 | baseuv = iv; | |
| 919 | baseuok = TRUE; /* effectively it's a UV now */ | |
| 920 | } else { | |
| 921 | baseuv = -iv; /* abs, baseuok == false records sign */ | |
| 922 | } | |
| 923 | } | |
| 52a96ae6 HS |
924 | /* now we have integer ** positive integer. */ |
| 925 | is_int = 1; | |
| 926 | ||
| 927 | /* foo & (foo - 1) is zero only for a power of 2. */ | |
| 58d76dfd | 928 | if (!(baseuv & (baseuv - 1))) { |
| 52a96ae6 | 929 | /* We are raising power-of-2 to a positive integer. |
| 58d76dfd JH |
930 | The logic here will work for any base (even non-integer |
| 931 | bases) but it can be less accurate than | |
| 932 | pow (base,power) or exp (power * log (base)) when the | |
| 933 | intermediate values start to spill out of the mantissa. | |
| 934 | With powers of 2 we know this can't happen. | |
| 935 | And powers of 2 are the favourite thing for perl | |
| 936 | programmers to notice ** not doing what they mean. */ | |
| 937 | NV result = 1.0; | |
| 938 | NV base = baseuok ? baseuv : -(NV)baseuv; | |
| 900658e3 PF |
939 | |
| 940 | if (power & 1) { | |
| 941 | result *= base; | |
| 942 | } | |
| 943 | while (power >>= 1) { | |
| 944 | base *= base; | |
| 945 | if (power & 1) { | |
| 946 | result *= base; | |
| 947 | } | |
| 948 | } | |
| 58d76dfd JH |
949 | SP--; |
| 950 | SETn( result ); | |
| 52a96ae6 | 951 | SvIV_please(TOPs); |
| 58d76dfd | 952 | RETURN; |
| 52a96ae6 HS |
953 | } else { |
| 954 | register unsigned int highbit = 8 * sizeof(UV); | |
| 900658e3 PF |
955 | register unsigned int diff = 8 * sizeof(UV); |
| 956 | while (diff >>= 1) { | |
| 957 | highbit -= diff; | |
| 958 | if (baseuv >> highbit) { | |
| 959 | highbit += diff; | |
| 960 | } | |
| 52a96ae6 HS |
961 | } |
| 962 | /* we now have baseuv < 2 ** highbit */ | |
| 963 | if (power * highbit <= 8 * sizeof(UV)) { | |
| 964 | /* result will definitely fit in UV, so use UV math | |
| 965 | on same algorithm as above */ | |
| 966 | register UV result = 1; | |
| 967 | register UV base = baseuv; | |
| 900658e3 PF |
968 | const bool odd_power = (bool)(power & 1); |
| 969 | if (odd_power) { | |
| 970 | result *= base; | |
| 971 | } | |
| 972 | while (power >>= 1) { | |
| 973 | base *= base; | |
| 974 | if (power & 1) { | |
| 52a96ae6 | 975 | result *= base; |
| 52a96ae6 HS |
976 | } |
| 977 | } | |
| 978 | SP--; | |
| 0615a994 | 979 | if (baseuok || !odd_power) |
| 52a96ae6 HS |
980 | /* answer is positive */ |
| 981 | SETu( result ); | |
| 982 | else if (result <= (UV)IV_MAX) | |
| 983 | /* answer negative, fits in IV */ | |
| 984 | SETi( -(IV)result ); | |
| 985 | else if (result == (UV)IV_MIN) | |
| 986 | /* 2's complement assumption: special case IV_MIN */ | |
| 987 | SETi( IV_MIN ); | |
| 988 | else | |
| 989 | /* answer negative, doesn't fit */ | |
| 990 | SETn( -(NV)result ); | |
| 991 | RETURN; | |
| 992 | } | |
| 993 | } | |
| 994 | } | |
| 995 | } | |
| 58d76dfd | 996 | } |
| 52a96ae6 | 997 | float_it: |
| 58d76dfd | 998 | #endif |
| a0d0e21e | 999 | { |
| 52a96ae6 | 1000 | dPOPTOPnnrl; |
| 3aaeb624 JA |
1001 | |
| 1002 | #if defined(USE_LONG_DOUBLE) && defined(HAS_AIX_POWL_NEG_BASE_BUG) | |
| 1003 | /* | |
| 1004 | We are building perl with long double support and are on an AIX OS | |
| 1005 | afflicted with a powl() function that wrongly returns NaNQ for any | |
| 1006 | negative base. This was reported to IBM as PMR #23047-379 on | |
| 1007 | 03/06/2006. The problem exists in at least the following versions | |
| 1008 | of AIX and the libm fileset, and no doubt others as well: | |
| 1009 | ||
| 1010 | AIX 4.3.3-ML10 bos.adt.libm 4.3.3.50 | |
| 1011 | AIX 5.1.0-ML04 bos.adt.libm 5.1.0.29 | |
| 1012 | AIX 5.2.0 bos.adt.libm 5.2.0.85 | |
| 1013 | ||
| 1014 | So, until IBM fixes powl(), we provide the following workaround to | |
| 1015 | handle the problem ourselves. Our logic is as follows: for | |
| 1016 | negative bases (left), we use fmod(right, 2) to check if the | |
| 1017 | exponent is an odd or even integer: | |
| 1018 | ||
| 1019 | - if odd, powl(left, right) == -powl(-left, right) | |
| 1020 | - if even, powl(left, right) == powl(-left, right) | |
| 1021 | ||
| 1022 | If the exponent is not an integer, the result is rightly NaNQ, so | |
| 1023 | we just return that (as NV_NAN). | |
| 1024 | */ | |
| 1025 | ||
| 1026 | if (left < 0.0) { | |
| 1027 | NV mod2 = Perl_fmod( right, 2.0 ); | |
| 1028 | if (mod2 == 1.0 || mod2 == -1.0) { /* odd integer */ | |
| 1029 | SETn( -Perl_pow( -left, right) ); | |
| 1030 | } else if (mod2 == 0.0) { /* even integer */ | |
| 1031 | SETn( Perl_pow( -left, right) ); | |
| 1032 | } else { /* fractional power */ | |
| 1033 | SETn( NV_NAN ); | |
| 1034 | } | |
| 1035 | } else { | |
| 1036 | SETn( Perl_pow( left, right) ); | |
| 1037 | } | |
| 1038 | #else | |
| 52a96ae6 | 1039 | SETn( Perl_pow( left, right) ); |
| 3aaeb624 JA |
1040 | #endif /* HAS_AIX_POWL_NEG_BASE_BUG */ |
| 1041 | ||
| 52a96ae6 HS |
1042 | #ifdef PERL_PRESERVE_IVUV |
| 1043 | if (is_int) | |
| 1044 | SvIV_please(TOPs); | |
| 1045 | #endif | |
| 1046 | RETURN; | |
| 93a17b20 | 1047 | } |
| a0d0e21e LW |
1048 | } |
| 1049 | ||
| 1050 | PP(pp_multiply) | |
| 1051 | { | |
| 97aff369 | 1052 | dVAR; dSP; dATARGET; tryAMAGICbin(mult,opASSIGN); |
| 28e5dec8 JH |
1053 | #ifdef PERL_PRESERVE_IVUV |
| 1054 | SvIV_please(TOPs); | |
| 1055 | if (SvIOK(TOPs)) { | |
| 1056 | /* Unless the left argument is integer in range we are going to have to | |
| 1057 | use NV maths. Hence only attempt to coerce the right argument if | |
| 1058 | we know the left is integer. */ | |
| 1059 | /* Left operand is defined, so is it IV? */ | |
| 1060 | SvIV_please(TOPm1s); | |
| 1061 | if (SvIOK(TOPm1s)) { | |
| 1062 | bool auvok = SvUOK(TOPm1s); | |
| 1063 | bool buvok = SvUOK(TOPs); | |
| 1064 | const UV topmask = (~ (UV)0) << (4 * sizeof (UV)); | |
| 1065 | const UV botmask = ~((~ (UV)0) << (4 * sizeof (UV))); | |
| 1066 | UV alow; | |
| 1067 | UV ahigh; | |
| 1068 | UV blow; | |
| 1069 | UV bhigh; | |
| 1070 | ||
| 1071 | if (auvok) { | |
| 1072 | alow = SvUVX(TOPm1s); | |
| 1073 | } else { | |
| 1b6737cc | 1074 | const IV aiv = SvIVX(TOPm1s); |
| 28e5dec8 JH |
1075 | if (aiv >= 0) { |
| 1076 | alow = aiv; | |
| 1077 | auvok = TRUE; /* effectively it's a UV now */ | |
| 1078 | } else { | |
| 1079 | alow = -aiv; /* abs, auvok == false records sign */ | |
| 1080 | } | |
| 1081 | } | |
| 1082 | if (buvok) { | |
| 1083 | blow = SvUVX(TOPs); | |
| 1084 | } else { | |
| 1b6737cc | 1085 | const IV biv = SvIVX(TOPs); |
| 28e5dec8 JH |
1086 | if (biv >= 0) { |
| 1087 | blow = biv; | |
| 1088 | buvok = TRUE; /* effectively it's a UV now */ | |
| 1089 | } else { | |
| 1090 | blow = -biv; /* abs, buvok == false records sign */ | |
| 1091 | } | |
| 1092 | } | |
| 1093 | ||
| 1094 | /* If this does sign extension on unsigned it's time for plan B */ | |
| 1095 | ahigh = alow >> (4 * sizeof (UV)); | |
| 1096 | alow &= botmask; | |
| 1097 | bhigh = blow >> (4 * sizeof (UV)); | |
| 1098 | blow &= botmask; | |
| 1099 | if (ahigh && bhigh) { | |
| 6f207bd3 | 1100 | NOOP; |
| 28e5dec8 JH |
1101 | /* eg 32 bit is at least 0x10000 * 0x10000 == 0x100000000 |
| 1102 | which is overflow. Drop to NVs below. */ | |
| 1103 | } else if (!ahigh && !bhigh) { | |
| 1104 | /* eg 32 bit is at most 0xFFFF * 0xFFFF == 0xFFFE0001 | |
| 1105 | so the unsigned multiply cannot overflow. */ | |
| c445ea15 | 1106 | const UV product = alow * blow; |
| 28e5dec8 JH |
1107 | if (auvok == buvok) { |
| 1108 | /* -ve * -ve or +ve * +ve gives a +ve result. */ | |
| 1109 | SP--; | |
| 1110 | SETu( product ); | |
| 1111 | RETURN; | |
| 1112 | } else if (product <= (UV)IV_MIN) { | |
| 1113 | /* 2s complement assumption that (UV)-IV_MIN is correct. */ | |
| 1114 | /* -ve result, which could overflow an IV */ | |
| 1115 | SP--; | |
| 25716404 | 1116 | SETi( -(IV)product ); |
| 28e5dec8 JH |
1117 | RETURN; |
| 1118 | } /* else drop to NVs below. */ | |
| 1119 | } else { | |
| 1120 | /* One operand is large, 1 small */ | |
| 1121 | UV product_middle; | |
| 1122 | if (bhigh) { | |
| 1123 | /* swap the operands */ | |
| 1124 | ahigh = bhigh; | |
| 1125 | bhigh = blow; /* bhigh now the temp var for the swap */ | |
| 1126 | blow = alow; | |
| 1127 | alow = bhigh; | |
| 1128 | } | |
| 1129 | /* now, ((ahigh * blow) << half_UV_len) + (alow * blow) | |
| 1130 | multiplies can't overflow. shift can, add can, -ve can. */ | |
| 1131 | product_middle = ahigh * blow; | |
| 1132 | if (!(product_middle & topmask)) { | |
| 1133 | /* OK, (ahigh * blow) won't lose bits when we shift it. */ | |
| 1134 | UV product_low; | |
| 1135 | product_middle <<= (4 * sizeof (UV)); | |
| 1136 | product_low = alow * blow; | |
| 1137 | ||
| 1138 | /* as for pp_add, UV + something mustn't get smaller. | |
| 1139 | IIRC ANSI mandates this wrapping *behaviour* for | |
| 1140 | unsigned whatever the actual representation*/ | |
| 1141 | product_low += product_middle; | |
| 1142 | if (product_low >= product_middle) { | |
| 1143 | /* didn't overflow */ | |
| 1144 | if (auvok == buvok) { | |
| 1145 | /* -ve * -ve or +ve * +ve gives a +ve result. */ | |
| 1146 | SP--; | |
| 1147 | SETu( product_low ); | |
| 1148 | RETURN; | |
| 1149 | } else if (product_low <= (UV)IV_MIN) { | |
| 1150 | /* 2s complement assumption again */ | |
| 1151 | /* -ve result, which could overflow an IV */ | |
| 1152 | SP--; | |
| 25716404 | 1153 | SETi( -(IV)product_low ); |
| 28e5dec8 JH |
1154 | RETURN; |
| 1155 | } /* else drop to NVs below. */ | |
| 1156 | } | |
| 1157 | } /* product_middle too large */ | |
| 1158 | } /* ahigh && bhigh */ | |
| 1159 | } /* SvIOK(TOPm1s) */ | |
| 1160 | } /* SvIOK(TOPs) */ | |
| 1161 | #endif | |
| a0d0e21e LW |
1162 | { |
| 1163 | dPOPTOPnnrl; | |
| 1164 | SETn( left * right ); | |
| 1165 | RETURN; | |
| 79072805 | 1166 | } |
| a0d0e21e LW |
1167 | } |
| 1168 | ||
| 1169 | PP(pp_divide) | |
| 1170 | { | |
| 97aff369 | 1171 | dVAR; dSP; dATARGET; tryAMAGICbin(div,opASSIGN); |
| 5479d192 | 1172 | /* Only try to do UV divide first |
| 68795e93 | 1173 | if ((SLOPPYDIVIDE is true) or |
| 5479d192 NC |
1174 | (PERL_PRESERVE_IVUV is true and one or both SV is a UV too large |
| 1175 | to preserve)) | |
| 1176 | The assumption is that it is better to use floating point divide | |
| 1177 | whenever possible, only doing integer divide first if we can't be sure. | |
| 1178 | If NV_PRESERVES_UV is true then we know at compile time that no UV | |
| 1179 | can be too large to preserve, so don't need to compile the code to | |
| 1180 | test the size of UVs. */ | |
| 1181 | ||
| a0d0e21e | 1182 | #ifdef SLOPPYDIVIDE |
| 5479d192 NC |
1183 | # define PERL_TRY_UV_DIVIDE |
| 1184 | /* ensure that 20./5. == 4. */ | |
| a0d0e21e | 1185 | #else |
| 5479d192 NC |
1186 | # ifdef PERL_PRESERVE_IVUV |
| 1187 | # ifndef NV_PRESERVES_UV | |
| 1188 | # define PERL_TRY_UV_DIVIDE | |
| 1189 | # endif | |
| 1190 | # endif | |
| a0d0e21e | 1191 | #endif |
| 5479d192 NC |
1192 | |
| 1193 | #ifdef PERL_TRY_UV_DIVIDE | |
| 1194 | SvIV_please(TOPs); | |
| 1195 | if (SvIOK(TOPs)) { | |
| 1196 | SvIV_please(TOPm1s); | |
| 1197 | if (SvIOK(TOPm1s)) { | |
| 1198 | bool left_non_neg = SvUOK(TOPm1s); | |
| 1199 | bool right_non_neg = SvUOK(TOPs); | |
| 1200 | UV left; | |
| 1201 | UV right; | |
| 1202 | ||
| 1203 | if (right_non_neg) { | |
| 1204 | right = SvUVX(TOPs); | |
| 1205 | } | |
| 1206 | else { | |
| 1b6737cc | 1207 | const IV biv = SvIVX(TOPs); |
| 5479d192 NC |
1208 | if (biv >= 0) { |
| 1209 | right = biv; | |
| 1210 | right_non_neg = TRUE; /* effectively it's a UV now */ | |
| 1211 | } | |
| 1212 | else { | |
| 1213 | right = -biv; | |
| 1214 | } | |
| 1215 | } | |
| 1216 | /* historically undef()/0 gives a "Use of uninitialized value" | |
| 1217 | warning before dieing, hence this test goes here. | |
| 1218 | If it were immediately before the second SvIV_please, then | |
| 1219 | DIE() would be invoked before left was even inspected, so | |
| 1220 | no inpsection would give no warning. */ | |
| 1221 | if (right == 0) | |
| 1222 | DIE(aTHX_ "Illegal division by zero"); | |
| 1223 | ||
| 1224 | if (left_non_neg) { | |
| 1225 | left = SvUVX(TOPm1s); | |
| 1226 | } | |
| 1227 | else { | |
| 1b6737cc | 1228 | const IV aiv = SvIVX(TOPm1s); |
| 5479d192 NC |
1229 | if (aiv >= 0) { |
| 1230 | left = aiv; | |
| 1231 | left_non_neg = TRUE; /* effectively it's a UV now */ | |
| 1232 | } | |
| 1233 | else { | |
| 1234 | left = -aiv; | |
| 1235 | } | |
| 1236 | } | |
| 1237 | ||
| 1238 | if (left >= right | |
| 1239 | #ifdef SLOPPYDIVIDE | |
| 1240 | /* For sloppy divide we always attempt integer division. */ | |
| 1241 | #else | |
| 1242 | /* Otherwise we only attempt it if either or both operands | |
| 1243 | would not be preserved by an NV. If both fit in NVs | |
| 0c2ee62a NC |
1244 | we fall through to the NV divide code below. However, |
| 1245 | as left >= right to ensure integer result here, we know that | |
| 1246 | we can skip the test on the right operand - right big | |
| 1247 | enough not to be preserved can't get here unless left is | |
| 1248 | also too big. */ | |
| 1249 | ||
| 1250 | && (left > ((UV)1 << NV_PRESERVES_UV_BITS)) | |
| 5479d192 NC |
1251 | #endif |
| 1252 | ) { | |
| 1253 | /* Integer division can't overflow, but it can be imprecise. */ | |
| 1b6737cc | 1254 | const UV result = left / right; |
| 5479d192 NC |
1255 | if (result * right == left) { |
| 1256 | SP--; /* result is valid */ | |
| 1257 | if (left_non_neg == right_non_neg) { | |
| 1258 | /* signs identical, result is positive. */ | |
| 1259 | SETu( result ); | |
| 1260 | RETURN; | |
| 1261 | } | |
| 1262 | /* 2s complement assumption */ | |
| 1263 | if (result <= (UV)IV_MIN) | |
| 91f3b821 | 1264 | SETi( -(IV)result ); |
| 5479d192 NC |
1265 | else { |
| 1266 | /* It's exact but too negative for IV. */ | |
| 1267 | SETn( -(NV)result ); | |
| 1268 | } | |
| 1269 | RETURN; | |
| 1270 | } /* tried integer divide but it was not an integer result */ | |
| 32fdb065 | 1271 | } /* else (PERL_ABS(result) < 1.0) or (both UVs in range for NV) */ |
| 5479d192 NC |
1272 | } /* left wasn't SvIOK */ |
| 1273 | } /* right wasn't SvIOK */ | |
| 1274 | #endif /* PERL_TRY_UV_DIVIDE */ | |
| 1275 | { | |
| 1276 | dPOPPOPnnrl; | |
| 1277 | if (right == 0.0) | |
| 1278 | DIE(aTHX_ "Illegal division by zero"); | |
| 1279 | PUSHn( left / right ); | |
| 1280 | RETURN; | |
| 79072805 | 1281 | } |
| a0d0e21e LW |
1282 | } |
| 1283 | ||
| 1284 | PP(pp_modulo) | |
| 1285 | { | |
| 97aff369 | 1286 | dVAR; dSP; dATARGET; tryAMAGICbin(modulo,opASSIGN); |
| a0d0e21e | 1287 | { |
| 9c5ffd7c JH |
1288 | UV left = 0; |
| 1289 | UV right = 0; | |
| dc656993 JH |
1290 | bool left_neg = FALSE; |
| 1291 | bool right_neg = FALSE; | |
| e2c88acc NC |
1292 | bool use_double = FALSE; |
| 1293 | bool dright_valid = FALSE; | |
| 9c5ffd7c JH |
1294 | NV dright = 0.0; |
| 1295 | NV dleft = 0.0; | |
| 787eafbd | 1296 | |
| e2c88acc NC |
1297 | SvIV_please(TOPs); |
| 1298 | if (SvIOK(TOPs)) { | |
| 1299 | right_neg = !SvUOK(TOPs); | |
| 1300 | if (!right_neg) { | |
| 1301 | right = SvUVX(POPs); | |
| 1302 | } else { | |
| 1b6737cc | 1303 | const IV biv = SvIVX(POPs); |
| e2c88acc NC |
1304 | if (biv >= 0) { |
| 1305 | right = biv; | |
| 1306 | right_neg = FALSE; /* effectively it's a UV now */ | |
| 1307 | } else { | |
| 1308 | right = -biv; | |
| 1309 | } | |
| 1310 | } | |
| 1311 | } | |
| 1312 | else { | |
| 787eafbd | 1313 | dright = POPn; |
| 787eafbd IZ |
1314 | right_neg = dright < 0; |
| 1315 | if (right_neg) | |
| 1316 | dright = -dright; | |
| e2c88acc NC |
1317 | if (dright < UV_MAX_P1) { |
| 1318 | right = U_V(dright); | |
| 1319 | dright_valid = TRUE; /* In case we need to use double below. */ | |
| 1320 | } else { | |
| 1321 | use_double = TRUE; | |
| 1322 | } | |
| 787eafbd | 1323 | } |
| a0d0e21e | 1324 | |
| e2c88acc NC |
1325 | /* At this point use_double is only true if right is out of range for |
| 1326 | a UV. In range NV has been rounded down to nearest UV and | |
| 1327 | use_double false. */ | |
| 1328 | SvIV_please(TOPs); | |
| 1329 | if (!use_double && SvIOK(TOPs)) { | |
| 1330 | if (SvIOK(TOPs)) { | |
| 1331 | left_neg = !SvUOK(TOPs); | |
| 1332 | if (!left_neg) { | |
| 1333 | left = SvUVX(POPs); | |
| 1334 | } else { | |
| 0bd48802 | 1335 | const IV aiv = SvIVX(POPs); |
| e2c88acc NC |
1336 | if (aiv >= 0) { |
| 1337 | left = aiv; | |
| 1338 | left_neg = FALSE; /* effectively it's a UV now */ | |
| 1339 | } else { | |
| 1340 | left = -aiv; | |
| 1341 | } | |
| 1342 | } | |
| 1343 | } | |
| 1344 | } | |
| 787eafbd IZ |
1345 | else { |
| 1346 | dleft = POPn; | |
| 787eafbd IZ |
1347 | left_neg = dleft < 0; |
| 1348 | if (left_neg) | |
| 1349 | dleft = -dleft; | |
| 68dc0745 | 1350 | |
| e2c88acc NC |
1351 | /* This should be exactly the 5.6 behaviour - if left and right are |
| 1352 | both in range for UV then use U_V() rather than floor. */ | |
| 1353 | if (!use_double) { | |
| 1354 | if (dleft < UV_MAX_P1) { | |
| 1355 | /* right was in range, so is dleft, so use UVs not double. | |
| 1356 | */ | |
| 1357 | left = U_V(dleft); | |
| 1358 | } | |
| 1359 | /* left is out of range for UV, right was in range, so promote | |
| 1360 | right (back) to double. */ | |
| 1361 | else { | |
| 1362 | /* The +0.5 is used in 5.6 even though it is not strictly | |
| 1363 | consistent with the implicit +0 floor in the U_V() | |
| 1364 | inside the #if 1. */ | |
| 1365 | dleft = Perl_floor(dleft + 0.5); | |
| 1366 | use_double = TRUE; | |
| 1367 | if (dright_valid) | |
| 1368 | dright = Perl_floor(dright + 0.5); | |
| 1369 | else | |
| 1370 | dright = right; | |
| 1371 | } | |
| 1372 | } | |
| 1373 | } | |
| 787eafbd | 1374 | if (use_double) { |
| 65202027 | 1375 | NV dans; |
| 787eafbd | 1376 | |
| 787eafbd | 1377 | if (!dright) |
| cea2e8a9 | 1378 | DIE(aTHX_ "Illegal modulus zero"); |
| 787eafbd | 1379 | |
| 65202027 | 1380 | dans = Perl_fmod(dleft, dright); |
| 787eafbd IZ |
1381 | if ((left_neg != right_neg) && dans) |
| 1382 | dans = dright - dans; | |
| 1383 | if (right_neg) | |
| 1384 | dans = -dans; | |
| 1385 | sv_setnv(TARG, dans); | |
| 1386 | } | |
| 1387 | else { | |
| 1388 | UV ans; | |
| 1389 | ||
| 787eafbd | 1390 | if (!right) |
| cea2e8a9 | 1391 | DIE(aTHX_ "Illegal modulus zero"); |
| 787eafbd IZ |
1392 | |
| 1393 | ans = left % right; | |
| 1394 | if ((left_neg != right_neg) && ans) | |
| 1395 | ans = right - ans; | |
| 1396 | if (right_neg) { | |
| 1397 | /* XXX may warn: unary minus operator applied to unsigned type */ | |
| 1398 | /* could change -foo to be (~foo)+1 instead */ | |
| 1399 | if (ans <= ~((UV)IV_MAX)+1) | |
| 1400 | sv_setiv(TARG, ~ans+1); | |
| 1401 | else | |
| 65202027 | 1402 | sv_setnv(TARG, -(NV)ans); |
| 787eafbd IZ |
1403 | } |
| 1404 | else | |
| 1405 | sv_setuv(TARG, ans); | |
| 1406 | } | |
| 1407 | PUSHTARG; | |
| 1408 | RETURN; | |
| 79072805 | 1409 | } |
| a0d0e21e | 1410 | } |
| 79072805 | 1411 | |
| a0d0e21e LW |
1412 | PP(pp_repeat) |
| 1413 | { | |
| 97aff369 | 1414 | dVAR; dSP; dATARGET; tryAMAGICbin(repeat,opASSIGN); |
| 748a9306 | 1415 | { |
| 2b573ace JH |
1416 | register IV count; |
| 1417 | dPOPss; | |
| 5b295bef | 1418 | SvGETMAGIC(sv); |
| 2b573ace JH |
1419 | if (SvIOKp(sv)) { |
| 1420 | if (SvUOK(sv)) { | |
| 1b6737cc | 1421 | const UV uv = SvUV(sv); |
| 2b573ace JH |
1422 | if (uv > IV_MAX) |
| 1423 | count = IV_MAX; /* The best we can do? */ | |
| 1424 | else | |
| 1425 | count = uv; | |
| 1426 | } else { | |
| 0bd48802 | 1427 | const IV iv = SvIV(sv); |
| 2b573ace JH |
1428 | if (iv < 0) |
| 1429 | count = 0; | |
| 1430 | else | |
| 1431 | count = iv; | |
| 1432 | } | |
| 1433 | } | |
| 1434 | else if (SvNOKp(sv)) { | |
| 1b6737cc | 1435 | const NV nv = SvNV(sv); |
| 2b573ace JH |
1436 | if (nv < 0.0) |
| 1437 | count = 0; | |
| 1438 | else | |
| 1439 | count = (IV)nv; | |
| 1440 | } | |
| 1441 | else | |
| 1442 | count = SvIVx(sv); | |
| 533c011a | 1443 | if (GIMME == G_ARRAY && PL_op->op_private & OPpREPEAT_DOLIST) { |
| a0d0e21e | 1444 | dMARK; |
| 0bd48802 AL |
1445 | static const char oom_list_extend[] = "Out of memory during list extend"; |
| 1446 | const I32 items = SP - MARK; | |
| 1447 | const I32 max = items * count; | |
| 79072805 | 1448 | |
| 2b573ace JH |
1449 | MEM_WRAP_CHECK_1(max, SV*, oom_list_extend); |
| 1450 | /* Did the max computation overflow? */ | |
| 27d5b266 | 1451 | if (items > 0 && max > 0 && (max < items || max < count)) |
| 2b573ace | 1452 | Perl_croak(aTHX_ oom_list_extend); |
| a0d0e21e LW |
1453 | MEXTEND(MARK, max); |
| 1454 | if (count > 1) { | |
| 1455 | while (SP > MARK) { | |
| 976c8a39 JH |
1456 | #if 0 |
| 1457 | /* This code was intended to fix 20010809.028: | |
| 1458 | ||
| 1459 | $x = 'abcd'; | |
| 1460 | for (($x =~ /./g) x 2) { | |
| 1461 | print chop; # "abcdabcd" expected as output. | |
| 1462 | } | |
| 1463 | ||
| 1464 | * but that change (#11635) broke this code: | |
| 1465 | ||
| 1466 | $x = [("foo")x2]; # only one "foo" ended up in the anonlist. | |
| 1467 | ||
| 1468 | * I can't think of a better fix that doesn't introduce | |
| 1469 | * an efficiency hit by copying the SVs. The stack isn't | |
| 1470 | * refcounted, and mortalisation obviously doesn't | |
| 1471 | * Do The Right Thing when the stack has more than | |
| 1472 | * one pointer to the same mortal value. | |
| 1473 | * .robin. | |
| 1474 | */ | |
| e30acc16 RH |
1475 | if (*SP) { |
| 1476 | *SP = sv_2mortal(newSVsv(*SP)); | |
| 1477 | SvREADONLY_on(*SP); | |
| 1478 | } | |
| 976c8a39 JH |
1479 | #else |
| 1480 | if (*SP) | |
| 1481 | SvTEMP_off((*SP)); | |
| 1482 | #endif | |
| a0d0e21e | 1483 | SP--; |
| 79072805 | 1484 | } |
| a0d0e21e LW |
1485 | MARK++; |
| 1486 | repeatcpy((char*)(MARK + items), (char*)MARK, | |
| 1487 | items * sizeof(SV*), count - 1); | |
| 1488 | SP += max; | |
| 79072805 | 1489 | } |
| a0d0e21e LW |
1490 | else if (count <= 0) |
| 1491 | SP -= items; | |
| 79072805 | 1492 | } |
| a0d0e21e | 1493 | else { /* Note: mark already snarfed by pp_list */ |
| 0bd48802 | 1494 | SV * const tmpstr = POPs; |
| a0d0e21e | 1495 | STRLEN len; |
| 9b877dbb | 1496 | bool isutf; |
| 2b573ace JH |
1497 | static const char oom_string_extend[] = |
| 1498 | "Out of memory during string extend"; | |
| a0d0e21e | 1499 | |
| a0d0e21e LW |
1500 | SvSetSV(TARG, tmpstr); |
| 1501 | SvPV_force(TARG, len); | |
| 9b877dbb | 1502 | isutf = DO_UTF8(TARG); |
| 8ebc5c01 | 1503 | if (count != 1) { |
| 1504 | if (count < 1) | |
| 1505 | SvCUR_set(TARG, 0); | |
| 1506 | else { | |
| c445ea15 | 1507 | const STRLEN max = (UV)count * len; |
| 2b573ace JH |
1508 | if (len > ((MEM_SIZE)~0)/count) |
| 1509 | Perl_croak(aTHX_ oom_string_extend); | |
| 1510 | MEM_WRAP_CHECK_1(max, char, oom_string_extend); | |
| 8569b9dc | 1511 | SvGROW(TARG, max + 1); |
| a0d0e21e | 1512 | repeatcpy(SvPVX(TARG) + len, SvPVX(TARG), len, count - 1); |
| b162af07 | 1513 | SvCUR_set(TARG, SvCUR(TARG) * count); |
| 7a4c00b4 | 1514 | } |
| a0d0e21e | 1515 | *SvEND(TARG) = '\0'; |
| a0d0e21e | 1516 | } |
| dfcb284a GS |
1517 | if (isutf) |
| 1518 | (void)SvPOK_only_UTF8(TARG); | |
| 1519 | else | |
| 1520 | (void)SvPOK_only(TARG); | |
| b80b6069 RH |
1521 | |
| 1522 | if (PL_op->op_private & OPpREPEAT_DOLIST) { | |
| 1523 | /* The parser saw this as a list repeat, and there | |
| 1524 | are probably several items on the stack. But we're | |
| 1525 | in scalar context, and there's no pp_list to save us | |
| 1526 | now. So drop the rest of the items -- robin@kitsite.com | |
| 1527 | */ | |
| 1528 | dMARK; | |
| 1529 | SP = MARK; | |
| 1530 | } | |
| a0d0e21e | 1531 | PUSHTARG; |
| 79072805 | 1532 | } |
| a0d0e21e | 1533 | RETURN; |
| 748a9306 | 1534 | } |
| a0d0e21e | 1535 | } |
| 79072805 | 1536 | |
| a0d0e21e LW |
1537 | PP(pp_subtract) |
| 1538 | { | |
| 97aff369 | 1539 | dVAR; dSP; dATARGET; bool useleft; tryAMAGICbin(subtr,opASSIGN); |
| 28e5dec8 JH |
1540 | useleft = USE_LEFT(TOPm1s); |
| 1541 | #ifdef PERL_PRESERVE_IVUV | |
| 7dca457a NC |
1542 | /* See comments in pp_add (in pp_hot.c) about Overflow, and how |
| 1543 | "bad things" happen if you rely on signed integers wrapping. */ | |
| 28e5dec8 JH |
1544 | SvIV_please(TOPs); |
| 1545 | if (SvIOK(TOPs)) { | |
| 1546 | /* Unless the left argument is integer in range we are going to have to | |
| 1547 | use NV maths. Hence only attempt to coerce the right argument if | |
| 1548 | we know the left is integer. */ | |
| 9c5ffd7c JH |
1549 | register UV auv = 0; |
| 1550 | bool auvok = FALSE; | |
| 7dca457a NC |
1551 | bool a_valid = 0; |
| 1552 | ||
| 28e5dec8 | 1553 | if (!useleft) { |
| 7dca457a NC |
1554 | auv = 0; |
| 1555 | a_valid = auvok = 1; | |
| 1556 | /* left operand is undef, treat as zero. */ | |
| 28e5dec8 JH |
1557 | } else { |
| 1558 | /* Left operand is defined, so is it IV? */ | |
| 1559 | SvIV_please(TOPm1s); | |
| 1560 | if (SvIOK(TOPm1s)) { | |
| 7dca457a NC |
1561 | if ((auvok = SvUOK(TOPm1s))) |
| 1562 | auv = SvUVX(TOPm1s); | |
| 1563 | else { | |
| 1b6737cc | 1564 | register const IV aiv = SvIVX(TOPm1s); |
| 7dca457a NC |
1565 | if (aiv >= 0) { |
| 1566 | auv = aiv; | |
| 1567 | auvok = 1; /* Now acting as a sign flag. */ | |
| 1568 | } else { /* 2s complement assumption for IV_MIN */ | |
| 1569 | auv = (UV)-aiv; | |
| 28e5dec8 | 1570 | } |
| 7dca457a NC |
1571 | } |
| 1572 | a_valid = 1; | |
| 1573 | } | |
| 1574 | } | |
| 1575 | if (a_valid) { | |
| 1576 | bool result_good = 0; | |
| 1577 | UV result; | |
| 1578 | register UV buv; | |
| 1579 | bool buvok = SvUOK(TOPs); | |
| 9041c2e3 | 1580 | |
| 7dca457a NC |
1581 | if (buvok) |
| 1582 | buv = SvUVX(TOPs); | |
| 1583 | else { | |
| 1b6737cc | 1584 | register const IV biv = SvIVX(TOPs); |
| 7dca457a NC |
1585 | if (biv >= 0) { |
| 1586 | buv = biv; | |
| 1587 | buvok = 1; | |
| 1588 | } else | |
| 1589 | buv = (UV)-biv; | |
| 1590 | } | |
| 1591 | /* ?uvok if value is >= 0. basically, flagged as UV if it's +ve, | |
| 602f51c4 | 1592 | else "IV" now, independent of how it came in. |
| 7dca457a NC |
1593 | if a, b represents positive, A, B negative, a maps to -A etc |
| 1594 | a - b => (a - b) | |
| 1595 | A - b => -(a + b) | |
| 1596 | a - B => (a + b) | |
| 1597 | A - B => -(a - b) | |
| 1598 | all UV maths. negate result if A negative. | |
| 1599 | subtract if signs same, add if signs differ. */ | |
| 1600 | ||
| 1601 | if (auvok ^ buvok) { | |
| 1602 | /* Signs differ. */ | |
| 1603 | result = auv + buv; | |
| 1604 | if (result >= auv) | |
| 1605 | result_good = 1; | |
| 1606 | } else { | |
| 1607 | /* Signs same */ | |
| 1608 | if (auv >= buv) { | |
| 1609 | result = auv - buv; | |
| 1610 | /* Must get smaller */ | |
| 1611 | if (result <= auv) | |
| 1612 | result_good = 1; | |
| 1613 | } else { | |
| 1614 | result = buv - auv; | |
| 1615 | if (result <= buv) { | |
| 1616 | /* result really should be -(auv-buv). as its negation | |
| 1617 | of true value, need to swap our result flag */ | |
| 1618 | auvok = !auvok; | |
| 1619 | result_good = 1; | |
| 28e5dec8 | 1620 | } |
| 28e5dec8 JH |
1621 | } |
| 1622 | } | |
| 7dca457a NC |
1623 | if (result_good) { |
| 1624 | SP--; | |
| 1625 | if (auvok) | |
| 1626 | SETu( result ); | |
| 1627 | else { | |
| 1628 | /* Negate result */ | |
| 1629 | if (result <= (UV)IV_MIN) | |
| 1630 | SETi( -(IV)result ); | |
| 1631 | else { | |
| 1632 | /* result valid, but out of range for IV. */ | |
| 1633 | SETn( -(NV)result ); | |
| 1634 | } | |
| 1635 | } | |
| 1636 | RETURN; | |
| 1637 | } /* Overflow, drop through to NVs. */ | |
| 28e5dec8 JH |
1638 | } |
| 1639 | } | |
| 1640 | #endif | |
| 7dca457a | 1641 | useleft = USE_LEFT(TOPm1s); |
| a0d0e21e | 1642 | { |
| 28e5dec8 JH |
1643 | dPOPnv; |
| 1644 | if (!useleft) { | |
| 1645 | /* left operand is undef, treat as zero - value */ | |
| 1646 | SETn(-value); | |
| 1647 | RETURN; | |
| 1648 | } | |
| 1649 | SETn( TOPn - value ); | |
| 1650 | RETURN; | |
| 79072805 | 1651 | } |
| a0d0e21e | 1652 | } |
| 79072805 | 1653 | |
| a0d0e21e LW |
1654 | PP(pp_left_shift) |
| 1655 | { | |
| 97aff369 | 1656 | dVAR; dSP; dATARGET; tryAMAGICbin(lshift,opASSIGN); |
| a0d0e21e | 1657 | { |
| 1b6737cc | 1658 | const IV shift = POPi; |
| d0ba1bd2 | 1659 | if (PL_op->op_private & HINT_INTEGER) { |
| c445ea15 | 1660 | const IV i = TOPi; |
| 972b05a9 | 1661 | SETi(i << shift); |
| d0ba1bd2 JH |
1662 | } |
| 1663 | else { | |
| c445ea15 | 1664 | const UV u = TOPu; |
| 972b05a9 | 1665 | SETu(u << shift); |
| d0ba1bd2 | 1666 | } |
| 55497cff | 1667 | RETURN; |
| 79072805 | 1668 | } |
| a0d0e21e | 1669 | } |
| 79072805 | 1670 | |
| a0d0e21e LW |
1671 | PP(pp_right_shift) |
| 1672 | { | |
| 97aff369 | 1673 | dVAR; dSP; dATARGET; tryAMAGICbin(rshift,opASSIGN); |
| a0d0e21e | 1674 | { |
| 1b6737cc | 1675 | const IV shift = POPi; |
| d0ba1bd2 | 1676 | if (PL_op->op_private & HINT_INTEGER) { |
| 0bd48802 | 1677 | const IV i = TOPi; |
| 972b05a9 | 1678 | SETi(i >> shift); |
| d0ba1bd2 JH |
1679 | } |
| 1680 | else { | |
| 0bd48802 | 1681 | const UV u = TOPu; |
| 972b05a9 | 1682 | SETu(u >> shift); |
| d0ba1bd2 | 1683 | } |
| a0d0e21e | 1684 | RETURN; |
| 93a17b20 | 1685 | } |
| 79072805 LW |
1686 | } |
| 1687 | ||
| a0d0e21e | 1688 | PP(pp_lt) |
| 79072805 | 1689 | { |
| 97aff369 | 1690 | dVAR; dSP; tryAMAGICbinSET(lt,0); |
| 28e5dec8 JH |
1691 | #ifdef PERL_PRESERVE_IVUV |
| 1692 | SvIV_please(TOPs); | |
| 1693 | if (SvIOK(TOPs)) { | |
| 1694 | SvIV_please(TOPm1s); | |
| 1695 | if (SvIOK(TOPm1s)) { | |
| 1696 | bool auvok = SvUOK(TOPm1s); | |
| 1697 | bool buvok = SvUOK(TOPs); | |
| a227d84d | 1698 | |
| 28e5dec8 | 1699 | if (!auvok && !buvok) { /* ## IV < IV ## */ |
| 1b6737cc AL |
1700 | const IV aiv = SvIVX(TOPm1s); |
| 1701 | const IV biv = SvIVX(TOPs); | |
| 28e5dec8 JH |
1702 | |
| 1703 | SP--; | |
| 1704 | SETs(boolSV(aiv < biv)); | |
| 1705 | RETURN; | |
| 1706 | } | |
| 1707 | if (auvok && buvok) { /* ## UV < UV ## */ | |
| 1b6737cc AL |
1708 | const UV auv = SvUVX(TOPm1s); |
| 1709 | const UV buv = SvUVX(TOPs); | |
| 28e5dec8 JH |
1710 | |
| 1711 | SP--; | |
| 1712 | SETs(boolSV(auv < buv)); | |
| 1713 | RETURN; | |
| 1714 | } | |
| 1715 | if (auvok) { /* ## UV < IV ## */ | |
| 1716 | UV auv; | |
| 1b6737cc | 1717 | const IV biv = SvIVX(TOPs); |
| 28e5dec8 JH |
1718 | SP--; |
| 1719 | if (biv < 0) { | |
| 1720 | /* As (a) is a UV, it's >=0, so it cannot be < */ | |
| 1721 | SETs(&PL_sv_no); | |
| 1722 | RETURN; | |
| 1723 | } | |
| 1724 | auv = SvUVX(TOPs); | |
| 28e5dec8 JH |
1725 | SETs(boolSV(auv < (UV)biv)); |
| 1726 | RETURN; | |
| 1727 | } | |
| 1728 | { /* ## IV < UV ## */ | |
| 1b6737cc | 1729 | const IV aiv = SvIVX(TOPm1s); |
| 28e5dec8 JH |
1730 | UV buv; |
| 1731 | ||
| 28e5dec8 JH |
1732 | if (aiv < 0) { |
| 1733 | /* As (b) is a UV, it's >=0, so it must be < */ | |
| 1734 | SP--; | |
| 1735 | SETs(&PL_sv_yes); | |
| 1736 | RETURN; | |
| 1737 | } | |
| 1738 | buv = SvUVX(TOPs); | |
| 1739 | SP--; | |
| 28e5dec8 JH |
1740 | SETs(boolSV((UV)aiv < buv)); |
| 1741 | RETURN; | |
| 1742 | } | |
| 1743 | } | |
| 1744 | } | |
| 1745 | #endif | |
| 30de85b6 | 1746 | #ifndef NV_PRESERVES_UV |
| 50fb3111 NC |
1747 | #ifdef PERL_PRESERVE_IVUV |
| 1748 | else | |
| 1749 | #endif | |
| 0bdaccee NC |
1750 | if (SvROK(TOPs) && !SvAMAGIC(TOPs) && SvROK(TOPm1s) && !SvAMAGIC(TOPm1s)) { |
| 1751 | SP--; | |
| 1752 | SETs(boolSV(SvRV(TOPs) < SvRV(TOPp1s))); | |
| 1753 | RETURN; | |
| 1754 | } | |
| 30de85b6 | 1755 | #endif |
| a0d0e21e | 1756 | { |
| cab190d4 JD |
1757 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
| 1758 | dPOPTOPnnrl; | |
| 1759 | if (Perl_isnan(left) || Perl_isnan(right)) | |
| 1760 | RETSETNO; | |
| 1761 | SETs(boolSV(left < right)); | |
| 1762 | #else | |
| a0d0e21e | 1763 | dPOPnv; |
| 54310121 | 1764 | SETs(boolSV(TOPn < value)); |
| cab190d4 | 1765 | #endif |
| a0d0e21e | 1766 | RETURN; |
| 79072805 | 1767 | } |
| a0d0e21e | 1768 | } |
| 79072805 | 1769 | |
| a0d0e21e LW |
1770 | PP(pp_gt) |
| 1771 | { | |
| 97aff369 | 1772 | dVAR; dSP; tryAMAGICbinSET(gt,0); |
| 28e5dec8 JH |
1773 | #ifdef PERL_PRESERVE_IVUV |
| 1774 | SvIV_please(TOPs); | |
| 1775 | if (SvIOK(TOPs)) { | |
| 1776 | SvIV_please(TOPm1s); | |
| 1777 | if (SvIOK(TOPm1s)) { | |
| 1778 | bool auvok = SvUOK(TOPm1s); | |
| 1779 | bool buvok = SvUOK(TOPs); | |
| a227d84d | 1780 | |
| 28e5dec8 | 1781 | if (!auvok && !buvok) { /* ## IV > IV ## */ |
| 1b6737cc AL |
1782 | const IV aiv = SvIVX(TOPm1s); |
| 1783 | const IV biv = SvIVX(TOPs); | |
| 1784 | ||
| 28e5dec8 JH |
1785 | SP--; |
| 1786 | SETs(boolSV(aiv > biv)); | |
| 1787 | RETURN; | |
| 1788 | } | |
| 1789 | if (auvok && buvok) { /* ## UV > UV ## */ | |
| 1b6737cc AL |
1790 | const UV auv = SvUVX(TOPm1s); |
| 1791 | const UV buv = SvUVX(TOPs); | |
| 28e5dec8 JH |
1792 | |
| 1793 | SP--; | |
| 1794 | SETs(boolSV(auv > buv)); | |
| 1795 | RETURN; | |
| 1796 | } | |
| 1797 | if (auvok) { /* ## UV > IV ## */ | |
| 1798 | UV auv; | |
| 1b6737cc AL |
1799 | const IV biv = SvIVX(TOPs); |
| 1800 | ||
| 28e5dec8 JH |
1801 | SP--; |
| 1802 | if (biv < 0) { | |
| 1803 | /* As (a) is a UV, it's >=0, so it must be > */ | |
| 1804 | SETs(&PL_sv_yes); | |
| 1805 | RETURN; | |
| 1806 | } | |
| 1807 | auv = SvUVX(TOPs); | |
| 28e5dec8 JH |
1808 | SETs(boolSV(auv > (UV)biv)); |
| 1809 | RETURN; | |
| 1810 | } | |
| 1811 | { /* ## IV > UV ## */ | |
| 1b6737cc | 1812 | const IV aiv = SvIVX(TOPm1s); |
| 28e5dec8 JH |
1813 | UV buv; |
| 1814 | ||
| 28e5dec8 JH |
1815 | if (aiv < 0) { |
| 1816 | /* As (b) is a UV, it's >=0, so it cannot be > */ | |
| 1817 | SP--; | |
| 1818 | SETs(&PL_sv_no); | |
| 1819 | RETURN; | |
| 1820 | } | |
| 1821 | buv = SvUVX(TOPs); | |
| 1822 | SP--; | |
| 28e5dec8 JH |
1823 | SETs(boolSV((UV)aiv > buv)); |
| 1824 | RETURN; | |
| 1825 | } | |
| 1826 | } | |
| 1827 | } | |
| 1828 | #endif | |
| 30de85b6 | 1829 | #ifndef NV_PRESERVES_UV |
| 50fb3111 NC |
1830 | #ifdef PERL_PRESERVE_IVUV |
| 1831 | else | |
| 1832 | #endif | |
| 0bdaccee | 1833 | if (SvROK(TOPs) && !SvAMAGIC(TOPs) && SvROK(TOPm1s) && !SvAMAGIC(TOPm1s)) { |
| 30de85b6 NC |
1834 | SP--; |
| 1835 | SETs(boolSV(SvRV(TOPs) > SvRV(TOPp1s))); | |
| 1836 | RETURN; | |
| 1837 | } | |
| 1838 | #endif | |
| a0d0e21e | 1839 | { |
| cab190d4 JD |
1840 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
| 1841 | dPOPTOPnnrl; | |
| 1842 | if (Perl_isnan(left) || Perl_isnan(right)) | |
| 1843 | RETSETNO; | |
| 1844 | SETs(boolSV(left > right)); | |
| 1845 | #else | |
| a0d0e21e | 1846 | dPOPnv; |
| 54310121 | 1847 | SETs(boolSV(TOPn > value)); |
| cab190d4 | 1848 | #endif |
| a0d0e21e | 1849 | RETURN; |
| 79072805 | 1850 | } |
| a0d0e21e LW |
1851 | } |
| 1852 | ||
| 1853 | PP(pp_le) | |
| 1854 | { | |
| 97aff369 | 1855 | dVAR; dSP; tryAMAGICbinSET(le,0); |
| 28e5dec8 JH |
1856 | #ifdef PERL_PRESERVE_IVUV |
| 1857 | SvIV_please(TOPs); | |
| 1858 | if (SvIOK(TOPs)) { | |
| 1859 | SvIV_please(TOPm1s); | |
| 1860 | if (SvIOK(TOPm1s)) { | |
| 1861 | bool auvok = SvUOK(TOPm1s); | |
| 1862 | bool buvok = SvUOK(TOPs); | |
| a227d84d | 1863 | |
| 28e5dec8 | 1864 | if (!auvok && !buvok) { /* ## IV <= IV ## */ |
| 1b6737cc AL |
1865 | const IV aiv = SvIVX(TOPm1s); |
| 1866 | const IV biv = SvIVX(TOPs); | |
| 28e5dec8 JH |
1867 | |
| 1868 | SP--; | |
| 1869 | SETs(boolSV(aiv <= biv)); | |
| 1870 | RETURN; | |
| 1871 | } | |
| 1872 | if (auvok && buvok) { /* ## UV <= UV ## */ | |
| 1873 | UV auv = SvUVX(TOPm1s); | |
| 1874 | UV buv = SvUVX(TOPs); | |
| 1875 | ||
| 1876 | SP--; | |
| 1877 | SETs(boolSV(auv <= buv)); | |
| 1878 | RETURN; | |
| 1879 | } | |
| 1880 | if (auvok) { /* ## UV <= IV ## */ | |
| 1881 | UV auv; | |
| 1b6737cc AL |
1882 | const IV biv = SvIVX(TOPs); |
| 1883 | ||
| 28e5dec8 JH |
1884 | SP--; |
| 1885 | if (biv < 0) { | |
| 1886 | /* As (a) is a UV, it's >=0, so a cannot be <= */ | |
| 1887 | SETs(&PL_sv_no); | |
| 1888 | RETURN; | |
| 1889 | } | |
| 1890 | auv = SvUVX(TOPs); | |
| 28e5dec8 JH |
1891 | SETs(boolSV(auv <= (UV)biv)); |
| 1892 | RETURN; | |
| 1893 | } | |
| 1894 | { /* ## IV <= UV ## */ | |
| 1b6737cc | 1895 | const IV aiv = SvIVX(TOPm1s); |
| 28e5dec8 | 1896 | UV buv; |
| 1b6737cc | 1897 | |
| 28e5dec8 JH |
1898 | if (aiv < 0) { |
| 1899 | /* As (b) is a UV, it's >=0, so a must be <= */ | |
| 1900 | SP--; | |
| 1901 | SETs(&PL_sv_yes); | |
| 1902 | RETURN; | |
| 1903 | } | |
| 1904 | buv = SvUVX(TOPs); | |
| 1905 | SP--; | |
| 28e5dec8 JH |
1906 | SETs(boolSV((UV)aiv <= buv)); |
| 1907 | RETURN; | |
| 1908 | } | |
| 1909 | } | |
| 1910 | } | |
| 1911 | #endif | |
| 30de85b6 | 1912 | #ifndef NV_PRESERVES_UV |
| 50fb3111 NC |
1913 | #ifdef PERL_PRESERVE_IVUV |
| 1914 | else | |
| 1915 | #endif | |
| 0bdaccee | 1916 | if (SvROK(TOPs) && !SvAMAGIC(TOPs) && SvROK(TOPm1s) && !SvAMAGIC(TOPm1s)) { |
| 30de85b6 NC |
1917 | SP--; |
| 1918 | SETs(boolSV(SvRV(TOPs) <= SvRV(TOPp1s))); | |
| 1919 | RETURN; | |
| 1920 | } | |
| 1921 | #endif | |
| a0d0e21e | 1922 | { |
| cab190d4 JD |
1923 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
| 1924 | dPOPTOPnnrl; | |
| 1925 | if (Perl_isnan(left) || Perl_isnan(right)) | |
| 1926 | RETSETNO; | |
| 1927 | SETs(boolSV(left <= right)); | |
| 1928 | #else | |
| a0d0e21e | 1929 | dPOPnv; |
| 54310121 | 1930 | SETs(boolSV(TOPn <= value)); |
| cab190d4 | 1931 | #endif |
| a0d0e21e | 1932 | RETURN; |
| 79072805 | 1933 | } |
| a0d0e21e LW |
1934 | } |
| 1935 | ||
| 1936 | PP(pp_ge) | |
| 1937 | { | |
| 97aff369 | 1938 | dVAR; dSP; tryAMAGICbinSET(ge,0); |
| 28e5dec8 JH |
1939 | #ifdef PERL_PRESERVE_IVUV |
| 1940 | SvIV_please(TOPs); | |
| 1941 | if (SvIOK(TOPs)) { | |
| 1942 | SvIV_please(TOPm1s); | |
| 1943 | if (SvIOK(TOPm1s)) { | |
| 1944 | bool auvok = SvUOK(TOPm1s); | |
| 1945 | bool buvok = SvUOK(TOPs); | |
| a227d84d | 1946 | |
| 28e5dec8 | 1947 | if (!auvok && !buvok) { /* ## IV >= IV ## */ |
| 1b6737cc AL |
1948 | const IV aiv = SvIVX(TOPm1s); |
| 1949 | const IV biv = SvIVX(TOPs); | |
| 1950 | ||
| 28e5dec8 JH |
1951 | SP--; |
| 1952 | SETs(boolSV(aiv >= biv)); | |
| 1953 | RETURN; | |
| 1954 | } | |
| 1955 | if (auvok && buvok) { /* ## UV >= UV ## */ | |
| 1b6737cc AL |
1956 | const UV auv = SvUVX(TOPm1s); |
| 1957 | const UV buv = SvUVX(TOPs); | |
| 1958 | ||
| 28e5dec8 JH |
1959 | SP--; |
| 1960 | SETs(boolSV(auv >= buv)); | |
| 1961 | RETURN; | |
| 1962 | } | |
| 1963 | if (auvok) { /* ## UV >= IV ## */ | |
| 1964 | UV auv; | |
| 1b6737cc AL |
1965 | const IV biv = SvIVX(TOPs); |
| 1966 | ||
| 28e5dec8 JH |
1967 | SP--; |
| 1968 | if (biv < 0) { | |
| 1969 | /* As (a) is a UV, it's >=0, so it must be >= */ | |
| 1970 | SETs(&PL_sv_yes); | |
| 1971 | RETURN; | |
| 1972 | } | |
| 1973 | auv = SvUVX(TOPs); | |
| 28e5dec8 JH |
1974 | SETs(boolSV(auv >= (UV)biv)); |
| 1975 | RETURN; | |
| 1976 | } | |
| 1977 | { /* ## IV >= UV ## */ | |
| 1b6737cc | 1978 | const IV aiv = SvIVX(TOPm1s); |
| 28e5dec8 | 1979 | UV buv; |
| 1b6737cc | 1980 | |
| 28e5dec8 JH |
1981 | if (aiv < 0) { |
| 1982 | /* As (b) is a UV, it's >=0, so a cannot be >= */ | |
| 1983 | SP--; | |
| 1984 | SETs(&PL_sv_no); | |
| 1985 | RETURN; | |
| 1986 | } | |
| 1987 | buv = SvUVX(TOPs); | |
| 1988 | SP--; | |
| 28e5dec8 JH |
1989 | SETs(boolSV((UV)aiv >= buv)); |
| 1990 | RETURN; | |
| 1991 | } | |
| 1992 | } | |
| 1993 | } | |
| 1994 | #endif | |
| 30de85b6 | 1995 | #ifndef NV_PRESERVES_UV |
| 50fb3111 NC |
1996 | #ifdef PERL_PRESERVE_IVUV |
| 1997 | else | |
| 1998 | #endif | |
| 0bdaccee | 1999 | if (SvROK(TOPs) && !SvAMAGIC(TOPs) && SvROK(TOPm1s) && !SvAMAGIC(TOPm1s)) { |
| 30de85b6 NC |
2000 | SP--; |
| 2001 | SETs(boolSV(SvRV(TOPs) >= SvRV(TOPp1s))); | |
| 2002 | RETURN; | |
| 2003 | } | |
| 2004 | #endif | |
| a0d0e21e | 2005 | { |
| cab190d4 JD |
2006 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
| 2007 | dPOPTOPnnrl; | |
| 2008 | if (Perl_isnan(left) || Perl_isnan(right)) | |
| 2009 | RETSETNO; | |
| 2010 | SETs(boolSV(left >= right)); | |
| 2011 | #else | |
| a0d0e21e | 2012 | dPOPnv; |
| 54310121 | 2013 | SETs(boolSV(TOPn >= value)); |
| cab190d4 | 2014 | #endif |
| a0d0e21e | 2015 | RETURN; |
| 79072805 | 2016 | } |
| a0d0e21e | 2017 | } |
| 79072805 | 2018 | |
| a0d0e21e LW |
2019 | PP(pp_ne) |
| 2020 | { | |
| 97aff369 | 2021 | dVAR; dSP; tryAMAGICbinSET(ne,0); |
| 3bb2c415 | 2022 | #ifndef NV_PRESERVES_UV |
| 0bdaccee | 2023 | if (SvROK(TOPs) && !SvAMAGIC(TOPs) && SvROK(TOPm1s) && !SvAMAGIC(TOPm1s)) { |
| e61d22ef NC |
2024 | SP--; |
| 2025 | SETs(boolSV(SvRV(TOPs) != SvRV(TOPp1s))); | |
| 3bb2c415 JH |
2026 | RETURN; |
| 2027 | } | |
| 2028 | #endif | |
| 28e5dec8 JH |
2029 | #ifdef PERL_PRESERVE_IVUV |
| 2030 | SvIV_please(TOPs); | |
| 2031 | if (SvIOK(TOPs)) { | |
| 2032 | SvIV_please(TOPm1s); | |
| 2033 | if (SvIOK(TOPm1s)) { | |
| 0bd48802 AL |
2034 | const bool auvok = SvUOK(TOPm1s); |
| 2035 | const bool buvok = SvUOK(TOPs); | |
| a227d84d | 2036 | |
| 30de85b6 NC |
2037 | if (auvok == buvok) { /* ## IV == IV or UV == UV ## */ |
| 2038 | /* Casting IV to UV before comparison isn't going to matter | |
| 2039 | on 2s complement. On 1s complement or sign&magnitude | |
| 2040 | (if we have any of them) it could make negative zero | |
| 2041 | differ from normal zero. As I understand it. (Need to | |
| 2042 | check - is negative zero implementation defined behaviour | |
| 2043 | anyway?). NWC */ | |
| 1b6737cc AL |
2044 | const UV buv = SvUVX(POPs); |
| 2045 | const UV auv = SvUVX(TOPs); | |
| 2046 | ||
| 28e5dec8 JH |
2047 | SETs(boolSV(auv != buv)); |
| 2048 | RETURN; | |
| 2049 | } | |
| 2050 | { /* ## Mixed IV,UV ## */ | |
| 2051 | IV iv; | |
| 2052 | UV uv; | |
| 2053 | ||
| 2054 | /* != is commutative so swap if needed (save code) */ | |
| 2055 | if (auvok) { | |
| 2056 | /* swap. top of stack (b) is the iv */ | |
| 2057 | iv = SvIVX(TOPs); | |
| 2058 | SP--; | |
| 2059 | if (iv < 0) { | |
| 2060 | /* As (a) is a UV, it's >0, so it cannot be == */ | |
| 2061 | SETs(&PL_sv_yes); | |
| 2062 | RETURN; | |
| 2063 | } | |
| 2064 | uv = SvUVX(TOPs); | |
| 2065 | } else { | |
| 2066 | iv = SvIVX(TOPm1s); | |
| 2067 | SP--; | |
| 2068 | if (iv < 0) { | |
| 2069 | /* As (b) is a UV, it's >0, so it cannot be == */ | |
| 2070 | SETs(&PL_sv_yes); | |
| 2071 | RETURN; | |
| 2072 | } | |
| 2073 | uv = SvUVX(*(SP+1)); /* Do I want TOPp1s() ? */ | |
| 2074 | } | |
| 28e5dec8 JH |
2075 | SETs(boolSV((UV)iv != uv)); |
| 2076 | RETURN; | |
| 2077 | } | |
| 2078 | } | |
| 2079 | } | |
| 2080 | #endif | |
| a0d0e21e | 2081 | { |
| cab190d4 JD |
2082 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
| 2083 | dPOPTOPnnrl; | |
| 2084 | if (Perl_isnan(left) || Perl_isnan(right)) | |
| 2085 | RETSETYES; | |
| 2086 | SETs(boolSV(left != right)); | |
| 2087 | #else | |
| a0d0e21e | 2088 | dPOPnv; |
| 54310121 | 2089 | SETs(boolSV(TOPn != value)); |
| cab190d4 | 2090 | #endif |
| a0d0e21e LW |
2091 | RETURN; |
| 2092 | } | |
| 79072805 LW |
2093 | } |
| 2094 | ||
| a0d0e21e | 2095 | PP(pp_ncmp) |
| 79072805 | 2096 | { |
| 97aff369 | 2097 | dVAR; dSP; dTARGET; tryAMAGICbin(ncmp,0); |
| d8c7644e | 2098 | #ifndef NV_PRESERVES_UV |
| 0bdaccee | 2099 | if (SvROK(TOPs) && !SvAMAGIC(TOPs) && SvROK(TOPm1s) && !SvAMAGIC(TOPm1s)) { |
| 0bd48802 AL |
2100 | const UV right = PTR2UV(SvRV(POPs)); |
| 2101 | const UV left = PTR2UV(SvRV(TOPs)); | |
| e61d22ef | 2102 | SETi((left > right) - (left < right)); |
| d8c7644e JH |
2103 | RETURN; |
| 2104 | } | |
| 2105 | #endif | |
| 28e5dec8 JH |
2106 | #ifdef PERL_PRESERVE_IVUV |
| 2107 | /* Fortunately it seems NaN isn't IOK */ | |
| 2108 | SvIV_please(TOPs); | |
| 2109 | if (SvIOK(TOPs)) { | |
| 2110 | SvIV_please(TOPm1s); | |
| 2111 | if (SvIOK(TOPm1s)) { | |
| 1b6737cc AL |
2112 | const bool leftuvok = SvUOK(TOPm1s); |
| 2113 | const bool rightuvok = SvUOK(TOPs); | |
| 28e5dec8 JH |
2114 | I32 value; |
| 2115 | if (!leftuvok && !rightuvok) { /* ## IV <=> IV ## */ | |
| 1b6737cc AL |
2116 | const IV leftiv = SvIVX(TOPm1s); |
| 2117 | const IV rightiv = SvIVX(TOPs); | |
| 28e5dec8 JH |
2118 | |
| 2119 | if (leftiv > rightiv) | |
| 2120 | value = 1; | |
| 2121 | else if (leftiv < rightiv) | |
| 2122 | value = -1; | |
| 2123 | else | |
| 2124 | value = 0; | |
| 2125 | } else if (leftuvok && rightuvok) { /* ## UV <=> UV ## */ | |
| 1b6737cc AL |
2126 | const UV leftuv = SvUVX(TOPm1s); |
| 2127 | const UV rightuv = SvUVX(TOPs); | |
| 28e5dec8 JH |
2128 | |
| 2129 | if (leftuv > rightuv) | |
| 2130 | value = 1; | |
| 2131 | else if (leftuv < rightuv) | |
| 2132 | value = -1; | |
| 2133 | else | |
| 2134 | value = 0; | |
| 2135 | } else if (leftuvok) { /* ## UV <=> IV ## */ | |
| 1b6737cc | 2136 | const IV rightiv = SvIVX(TOPs); |
| 28e5dec8 JH |
2137 | if (rightiv < 0) { |
| 2138 | /* As (a) is a UV, it's >=0, so it cannot be < */ | |
| 2139 | value = 1; | |
| 2140 | } else { | |
| 1b6737cc | 2141 | const UV leftuv = SvUVX(TOPm1s); |
| 83bac5dd | 2142 | if (leftuv > (UV)rightiv) { |
| 28e5dec8 JH |
2143 | value = 1; |
| 2144 | } else if (leftuv < (UV)rightiv) { | |
| 2145 | value = -1; | |
| 2146 | } else { | |
| 2147 | value = 0; | |
| 2148 | } | |
| 2149 | } | |
| 2150 | } else { /* ## IV <=> UV ## */ | |
| 1b6737cc | 2151 | const IV leftiv = SvIVX(TOPm1s); |
| 28e5dec8 JH |
2152 | if (leftiv < 0) { |
| 2153 | /* As (b) is a UV, it's >=0, so it must be < */ | |
| 2154 | value = -1; | |
| 2155 | } else { | |
| 1b6737cc | 2156 | const UV rightuv = SvUVX(TOPs); |
| 83bac5dd | 2157 | if ((UV)leftiv > rightuv) { |
| 28e5dec8 | 2158 | value = 1; |
| 83bac5dd | 2159 | } else if ((UV)leftiv < rightuv) { |
| 28e5dec8 JH |
2160 | value = -1; |
| 2161 | } else { | |
| 2162 | value = 0; | |
| 2163 | } | |
| 2164 | } | |
| 2165 | } | |
| 2166 | SP--; | |
| 2167 | SETi(value); | |
| 2168 | RETURN; | |
| 2169 | } | |
| 2170 | } | |
| 2171 | #endif | |
| a0d0e21e LW |
2172 | { |
| 2173 | dPOPTOPnnrl; | |
| 2174 | I32 value; | |
| 79072805 | 2175 | |
| a3540c92 | 2176 | #ifdef Perl_isnan |
| 1ad04cfd JH |
2177 | if (Perl_isnan(left) || Perl_isnan(right)) { |
| 2178 | SETs(&PL_sv_undef); | |
| 2179 | RETURN; | |
| 2180 | } | |
| 2181 | value = (left > right) - (left < right); | |
| 2182 | #else | |
| ff0cee69 | 2183 | if (left == right) |
| a0d0e21e | 2184 | value = 0; |
| a0d0e21e LW |
2185 | else if (left < right) |
| 2186 | value = -1; | |
| 44a8e56a | 2187 | else if (left > right) |
| 2188 | value = 1; | |
| 2189 | else { | |
| 3280af22 | 2190 | SETs(&PL_sv_undef); |
| 44a8e56a | 2191 | RETURN; |
| 2192 | } | |
| 1ad04cfd | 2193 | #endif |
| a0d0e21e LW |
2194 | SETi(value); |
| 2195 | RETURN; | |
| 79072805 | 2196 | } |
| a0d0e21e | 2197 | } |
| 79072805 | 2198 | |
| afd9910b | 2199 | PP(pp_sle) |
| a0d0e21e | 2200 | { |
| 97aff369 | 2201 | dVAR; dSP; |
| 79072805 | 2202 | |
| afd9910b NC |
2203 | int amg_type = sle_amg; |
| 2204 | int multiplier = 1; | |
| 2205 | int rhs = 1; | |
| 79072805 | 2206 | |
| afd9910b NC |
2207 | switch (PL_op->op_type) { |
| 2208 | case OP_SLT: | |
| 2209 | amg_type = slt_amg; | |
| 2210 | /* cmp < 0 */ | |
| 2211 | rhs = 0; | |
| 2212 | break; | |
| 2213 | case OP_SGT: | |
| 2214 | amg_type = sgt_amg; | |
| 2215 | /* cmp > 0 */ | |
| 2216 | multiplier = -1; | |
| 2217 | rhs = 0; | |
| 2218 | break; | |
| 2219 | case OP_SGE: | |
| 2220 | amg_type = sge_amg; | |
| 2221 | /* cmp >= 0 */ | |
| 2222 | multiplier = -1; | |
| 2223 | break; | |
| 79072805 | 2224 | } |
| 79072805 | 2225 | |
| afd9910b | 2226 | tryAMAGICbinSET_var(amg_type,0); |
| a0d0e21e LW |
2227 | { |
| 2228 | dPOPTOPssrl; | |
| 1b6737cc | 2229 | const int cmp = (IN_LOCALE_RUNTIME |
| bbce6d69 | 2230 | ? sv_cmp_locale(left, right) |
| 2231 | : sv_cmp(left, right)); | |
| afd9910b | 2232 | SETs(boolSV(cmp * multiplier < rhs)); |
| a0d0e21e LW |
2233 | RETURN; |
| 2234 | } | |
| 2235 | } | |
| 79072805 | 2236 | |
| 36477c24 | 2237 | PP(pp_seq) |
| 2238 | { | |
| 97aff369 | 2239 | dVAR; dSP; tryAMAGICbinSET(seq,0); |
| 36477c24 | 2240 | { |
| 2241 | dPOPTOPssrl; | |
| 54310121 | 2242 | SETs(boolSV(sv_eq(left, right))); |
| a0d0e21e LW |
2243 | RETURN; |
| 2244 | } | |
| 2245 | } | |
| 79072805 | 2246 | |
| a0d0e21e | 2247 | PP(pp_sne) |
| 79072805 | 2248 | { |
| 97aff369 | 2249 | dVAR; dSP; tryAMAGICbinSET(sne,0); |
| a0d0e21e LW |
2250 | { |
| 2251 | dPOPTOPssrl; | |
| 54310121 | 2252 | SETs(boolSV(!sv_eq(left, right))); |
| a0d0e21e | 2253 | RETURN; |
| 463ee0b2 | 2254 | } |
| 79072805 LW |
2255 | } |
| 2256 | ||
| a0d0e21e | 2257 | PP(pp_scmp) |
| 79072805 | 2258 | { |
| 97aff369 | 2259 | dVAR; dSP; dTARGET; tryAMAGICbin(scmp,0); |
| a0d0e21e LW |
2260 | { |
| 2261 | dPOPTOPssrl; | |
| 1b6737cc | 2262 | const int cmp = (IN_LOCALE_RUNTIME |
| bbce6d69 | 2263 | ? sv_cmp_locale(left, right) |
| 2264 | : sv_cmp(left, right)); | |
| 2265 | SETi( cmp ); | |
| a0d0e21e LW |
2266 | RETURN; |
| 2267 | } | |
| 2268 | } | |
| 79072805 | 2269 | |
| 55497cff | 2270 | PP(pp_bit_and) |
| 2271 | { | |
| 97aff369 | 2272 | dVAR; dSP; dATARGET; tryAMAGICbin(band,opASSIGN); |
| a0d0e21e LW |
2273 | { |
| 2274 | dPOPTOPssrl; | |
| 5b295bef RD |
2275 | SvGETMAGIC(left); |
| 2276 | SvGETMAGIC(right); | |
| 4633a7c4 | 2277 | if (SvNIOKp(left) || SvNIOKp(right)) { |
| d0ba1bd2 | 2278 | if (PL_op->op_private & HINT_INTEGER) { |
| 1b6737cc | 2279 | const IV i = SvIV_nomg(left) & SvIV_nomg(right); |
| 972b05a9 | 2280 | SETi(i); |
| d0ba1bd2 JH |
2281 | } |
| 2282 | else { | |
| 1b6737cc | 2283 | const UV u = SvUV_nomg(left) & SvUV_nomg(right); |
| 972b05a9 | 2284 | SETu(u); |
| d0ba1bd2 | 2285 | } |
| a0d0e21e LW |
2286 | } |
| 2287 | else { | |
| 533c011a | 2288 | do_vop(PL_op->op_type, TARG, left, right); |
| a0d0e21e LW |
2289 | SETTARG; |
| 2290 | } | |
| 2291 | RETURN; | |
| 2292 | } | |
| 2293 | } | |
| 79072805 | 2294 | |
| a0d0e21e LW |
2295 | PP(pp_bit_or) |
| 2296 | { | |
| 3658c1f1 NC |
2297 | dVAR; dSP; dATARGET; |
| 2298 | const int op_type = PL_op->op_type; | |
| 2299 | ||
| 2300 | tryAMAGICbin_var((op_type == OP_BIT_OR ? bor_amg : bxor_amg), opASSIGN); | |
| a0d0e21e LW |
2301 | { |
| 2302 | dPOPTOPssrl; | |
| 5b295bef RD |
2303 | SvGETMAGIC(left); |
| 2304 | SvGETMAGIC(right); | |
| 4633a7c4 | 2305 | if (SvNIOKp(left) || SvNIOKp(right)) { |
| d0ba1bd2 | 2306 | if (PL_op->op_private & HINT_INTEGER) { |
| 3658c1f1 NC |
2307 | const IV l = (USE_LEFT(left) ? SvIV_nomg(left) : 0); |
| 2308 | const IV r = SvIV_nomg(right); | |
| 2309 | const IV result = op_type == OP_BIT_OR ? (l | r) : (l ^ r); | |
| 2310 | SETi(result); | |
| d0ba1bd2 JH |
2311 | } |
| 2312 | else { | |
| 3658c1f1 NC |
2313 | const UV l = (USE_LEFT(left) ? SvUV_nomg(left) : 0); |
| 2314 | const UV r = SvUV_nomg(right); | |
| 2315 | const UV result = op_type == OP_BIT_OR ? (l | r) : (l ^ r); | |
| 2316 | SETu(result); | |
| d0ba1bd2 | 2317 | } |
| a0d0e21e LW |
2318 | } |
| 2319 | else { | |
| 3658c1f1 | 2320 | do_vop(op_type, TARG, left, right); |
| a0d0e21e LW |
2321 | SETTARG; |
| 2322 | } | |
| 2323 | RETURN; | |
| 79072805 | 2324 | } |
| a0d0e21e | 2325 | } |
| 79072805 | 2326 | |
| a0d0e21e LW |
2327 | PP(pp_negate) |
| 2328 | { | |
| 97aff369 | 2329 | dVAR; dSP; dTARGET; tryAMAGICun(neg); |
| a0d0e21e LW |
2330 | { |
| 2331 | dTOPss; | |
| 1b6737cc | 2332 | const int flags = SvFLAGS(sv); |
| 5b295bef | 2333 | SvGETMAGIC(sv); |
| 28e5dec8 JH |
2334 | if ((flags & SVf_IOK) || ((flags & (SVp_IOK | SVp_NOK)) == SVp_IOK)) { |
| 2335 | /* It's publicly an integer, or privately an integer-not-float */ | |
| 2336 | oops_its_an_int: | |
| 9b0e499b GS |
2337 | if (SvIsUV(sv)) { |
| 2338 | if (SvIVX(sv) == IV_MIN) { | |
| 28e5dec8 | 2339 | /* 2s complement assumption. */ |
| 9b0e499b GS |
2340 | SETi(SvIVX(sv)); /* special case: -((UV)IV_MAX+1) == IV_MIN */ |
| 2341 | RETURN; | |
| 2342 | } | |
| 2343 | else if (SvUVX(sv) <= IV_MAX) { | |
| beccb14c | 2344 | SETi(-SvIVX(sv)); |
| 9b0e499b GS |
2345 | RETURN; |
| 2346 | } | |
| 2347 | } | |
| 2348 | else if (SvIVX(sv) != IV_MIN) { | |
| 2349 | SETi(-SvIVX(sv)); | |
| 2350 | RETURN; | |
| 2351 | } | |
| 28e5dec8 JH |
2352 | #ifdef PERL_PRESERVE_IVUV |
| 2353 | else { | |
| 2354 | SETu((UV)IV_MIN); | |
| 2355 | RETURN; | |
| 2356 | } | |
| 2357 | #endif | |
| 9b0e499b GS |
2358 | } |
| 2359 | if (SvNIOKp(sv)) | |
| a0d0e21e | 2360 | SETn(-SvNV(sv)); |
| 4633a7c4 | 2361 | else if (SvPOKp(sv)) { |
| a0d0e21e | 2362 | STRLEN len; |
| c445ea15 | 2363 | const char * const s = SvPV_const(sv, len); |
| bbce6d69 | 2364 | if (isIDFIRST(*s)) { |
| a0d0e21e LW |
2365 | sv_setpvn(TARG, "-", 1); |
| 2366 | sv_catsv(TARG, sv); | |
| 79072805 | 2367 | } |
| a0d0e21e LW |
2368 | else if (*s == '+' || *s == '-') { |
| 2369 | sv_setsv(TARG, sv); | |
| 2370 | *SvPV_force(TARG, len) = *s == '-' ? '+' : '-'; | |
| 79072805 | 2371 | } |
| 8eb28a70 JH |
2372 | else if (DO_UTF8(sv)) { |
| 2373 | SvIV_please(sv); | |
| 2374 | if (SvIOK(sv)) | |
| 2375 | goto oops_its_an_int; | |
| 2376 | if (SvNOK(sv)) | |
| 2377 | sv_setnv(TARG, -SvNV(sv)); | |
| 2378 | else { | |
| 2379 | sv_setpvn(TARG, "-", 1); | |
| 2380 | sv_catsv(TARG, sv); | |
| 2381 | } | |
| 834a4ddd | 2382 | } |
| 28e5dec8 | 2383 | else { |
| 8eb28a70 JH |
2384 | SvIV_please(sv); |
| 2385 | if (SvIOK(sv)) | |
| 2386 | goto oops_its_an_int; | |
| 2387 | sv_setnv(TARG, -SvNV(sv)); | |
| 28e5dec8 | 2388 | } |
| a0d0e21e | 2389 | SETTARG; |
| 79072805 | 2390 | } |
| 4633a7c4 LW |
2391 | else |
| 2392 | SETn(-SvNV(sv)); | |
| 79072805 | 2393 | } |
| a0d0e21e | 2394 | RETURN; |
| 79072805 LW |
2395 | } |
| 2396 | ||
| a0d0e21e | 2397 | PP(pp_not) |
| 79072805 | 2398 | { |
| 97aff369 | 2399 | dVAR; dSP; tryAMAGICunSET(not); |
| 3280af22 | 2400 | *PL_stack_sp = boolSV(!SvTRUE(*PL_stack_sp)); |
| a0d0e21e | 2401 | return NORMAL; |
| 79072805 LW |
2402 | } |
| 2403 | ||
| a0d0e21e | 2404 | PP(pp_complement) |
| 79072805 | 2405 | { |
| 97aff369 | 2406 | dVAR; dSP; dTARGET; tryAMAGICun(compl); |
| a0d0e21e LW |
2407 | { |
| 2408 | dTOPss; | |
| 5b295bef | 2409 | SvGETMAGIC(sv); |
| 4633a7c4 | 2410 | if (SvNIOKp(sv)) { |
| d0ba1bd2 | 2411 | if (PL_op->op_private & HINT_INTEGER) { |
| 1b6737cc | 2412 | const IV i = ~SvIV_nomg(sv); |
| 972b05a9 | 2413 | SETi(i); |
| d0ba1bd2 JH |
2414 | } |
| 2415 | else { | |
| 1b6737cc | 2416 | const UV u = ~SvUV_nomg(sv); |
| 972b05a9 | 2417 | SETu(u); |
| d0ba1bd2 | 2418 | } |
| a0d0e21e LW |
2419 | } |
| 2420 | else { | |
| 51723571 | 2421 | register U8 *tmps; |
| 55497cff | 2422 | register I32 anum; |
| a0d0e21e LW |
2423 | STRLEN len; |
| 2424 | ||
| 10516c54 | 2425 | (void)SvPV_nomg_const(sv,len); /* force check for uninit var */ |
| 891f9566 | 2426 | sv_setsv_nomg(TARG, sv); |
| 51723571 | 2427 | tmps = (U8*)SvPV_force(TARG, len); |
| a0d0e21e | 2428 | anum = len; |
| 1d68d6cd | 2429 | if (SvUTF8(TARG)) { |
| a1ca4561 | 2430 | /* Calculate exact length, let's not estimate. */ |
| 1d68d6cd | 2431 | STRLEN targlen = 0; |
| ba210ebe | 2432 | STRLEN l; |
| a1ca4561 YST |
2433 | UV nchar = 0; |
| 2434 | UV nwide = 0; | |
| 01f6e806 | 2435 | U8 * const send = tmps + len; |
| 74d49cd0 TS |
2436 | U8 * const origtmps = tmps; |
| 2437 | const UV utf8flags = UTF8_ALLOW_ANYUV; | |
| 1d68d6cd | 2438 | |
| 1d68d6cd | 2439 | while (tmps < send) { |
| 74d49cd0 TS |
2440 | const UV c = utf8n_to_uvchr(tmps, send-tmps, &l, utf8flags); |
| 2441 | tmps += l; | |
| 5bbb0b5a | 2442 | targlen += UNISKIP(~c); |
| a1ca4561 YST |
2443 | nchar++; |
| 2444 | if (c > 0xff) | |
| 2445 | nwide++; | |
| 1d68d6cd SC |
2446 | } |
| 2447 | ||
| 2448 | /* Now rewind strings and write them. */ | |
| 74d49cd0 | 2449 | tmps = origtmps; |
| a1ca4561 YST |
2450 | |
| 2451 | if (nwide) { | |
| 01f6e806 AL |
2452 | U8 *result; |
| 2453 | U8 *p; | |
| 2454 | ||
| 74d49cd0 | 2455 | Newx(result, targlen + 1, U8); |
| 01f6e806 | 2456 | p = result; |
| a1ca4561 | 2457 | while (tmps < send) { |
| 74d49cd0 TS |
2458 | const UV c = utf8n_to_uvchr(tmps, send-tmps, &l, utf8flags); |
| 2459 | tmps += l; | |
| 01f6e806 | 2460 | p = uvchr_to_utf8_flags(p, ~c, UNICODE_ALLOW_ANY); |
| a1ca4561 | 2461 | } |
| 01f6e806 | 2462 | *p = '\0'; |
| c1c21316 NC |
2463 | sv_usepvn_flags(TARG, (char*)result, targlen, |
| 2464 | SV_HAS_TRAILING_NUL); | |
| a1ca4561 YST |
2465 | SvUTF8_on(TARG); |
| 2466 | } | |
| 2467 | else { | |
| 01f6e806 AL |
2468 | U8 *result; |
| 2469 | U8 *p; | |
| 2470 | ||
| 74d49cd0 | 2471 | Newx(result, nchar + 1, U8); |
| 01f6e806 | 2472 | p = result; |
| a1ca4561 | 2473 | while (tmps < send) { |
| 74d49cd0 TS |
2474 | const U8 c = (U8)utf8n_to_uvchr(tmps, send-tmps, &l, utf8flags); |
| 2475 | tmps += l; | |
| 01f6e806 | 2476 | *p++ = ~c; |
| a1ca4561 | 2477 | } |
| 01f6e806 | 2478 | *p = '\0'; |
| c1c21316 | 2479 | sv_usepvn_flags(TARG, (char*)result, nchar, SV_HAS_TRAILING_NUL); |
| d0a21e00 | 2480 | SvUTF8_off(TARG); |
| 1d68d6cd | 2481 | } |
| 1d68d6cd SC |
2482 | SETs(TARG); |
| 2483 | RETURN; | |
| 2484 | } | |
| a0d0e21e | 2485 | #ifdef LIBERAL |
| 51723571 JH |
2486 | { |
| 2487 | register long *tmpl; | |
| 2488 | for ( ; anum && (unsigned long)tmps % sizeof(long); anum--, tmps++) | |
| 2489 | *tmps = ~*tmps; | |
| 2490 | tmpl = (long*)tmps; | |
| bb7a0f54 | 2491 | for ( ; anum >= (I32)sizeof(long); anum -= (I32)sizeof(long), tmpl++) |
| 51723571 JH |
2492 | *tmpl = ~*tmpl; |
| 2493 | tmps = (U8*)tmpl; | |
| 2494 | } | |
| a0d0e21e LW |
2495 | #endif |
| 2496 | for ( ; anum > 0; anum--, tmps++) | |
| 2497 | *tmps = ~*tmps; | |
| 2498 | ||
| 2499 | SETs(TARG); | |
| 2500 | } | |
| 2501 | RETURN; | |
| 2502 | } | |
| 79072805 LW |
2503 | } |
| 2504 | ||
| a0d0e21e LW |
2505 | /* integer versions of some of the above */ |
| 2506 | ||
| a0d0e21e | 2507 | PP(pp_i_multiply) |
| 79072805 | 2508 | { |
| 97aff369 | 2509 | dVAR; dSP; dATARGET; tryAMAGICbin(mult,opASSIGN); |
| a0d0e21e LW |
2510 | { |
| 2511 | dPOPTOPiirl; | |
| 2512 | SETi( left * right ); | |
| 2513 | RETURN; | |
| 2514 | } | |
| 79072805 LW |
2515 | } |
| 2516 | ||
| a0d0e21e | 2517 | PP(pp_i_divide) |
| 79072805 | 2518 | { |
| ece1bcef | 2519 | IV num; |
| 97aff369 | 2520 | dVAR; dSP; dATARGET; tryAMAGICbin(div,opASSIGN); |
| a0d0e21e LW |
2521 | { |
| 2522 | dPOPiv; | |
| 2523 | if (value == 0) | |
| ece1bcef SP |
2524 | DIE(aTHX_ "Illegal division by zero"); |
| 2525 | num = POPi; | |
| a0cec769 YST |
2526 | |
| 2527 | /* avoid FPE_INTOVF on some platforms when num is IV_MIN */ | |
| 2528 | if (value == -1) | |
| 2529 | value = - num; | |
| 2530 | else | |
| 2531 | value = num / value; | |
| a0d0e21e LW |
2532 | PUSHi( value ); |
| 2533 | RETURN; | |
| 2534 | } | |
| 79072805 LW |
2535 | } |
| 2536 | ||
| 224ec323 JH |
2537 | STATIC |
| 2538 | PP(pp_i_modulo_0) | |
| 2539 | { | |
| 2540 | /* This is the vanilla old i_modulo. */ | |
| 27da23d5 | 2541 | dVAR; dSP; dATARGET; tryAMAGICbin(modulo,opASSIGN); |
| 224ec323 JH |
2542 | { |
| 2543 | dPOPTOPiirl; | |
| 2544 | if (!right) | |
| 2545 | DIE(aTHX_ "Illegal modulus zero"); | |
| a0cec769 YST |
2546 | /* avoid FPE_INTOVF on some platforms when left is IV_MIN */ |
| 2547 | if (right == -1) | |
| 2548 | SETi( 0 ); | |
| 2549 | else | |
| 2550 | SETi( left % right ); | |
| 224ec323 JH |
2551 | RETURN; |
| 2552 | } | |
| 2553 | } | |
| 2554 | ||
| 11010fa3 | 2555 | #if defined(__GLIBC__) && IVSIZE == 8 |
| 224ec323 JH |
2556 | STATIC |
| 2557 | PP(pp_i_modulo_1) | |
| 2558 | { | |
| 224ec323 | 2559 | /* This is the i_modulo with the workaround for the _moddi3 bug |
| fce2b89e | 2560 | * in (at least) glibc 2.2.5 (the PERL_ABS() the workaround). |
| 224ec323 | 2561 | * See below for pp_i_modulo. */ |
| 97aff369 | 2562 | dVAR; dVAR; dSP; dATARGET; tryAMAGICbin(modulo,opASSIGN); |
| 224ec323 JH |
2563 | { |
| 2564 | dPOPTOPiirl; | |
| 2565 | if (!right) | |
| 2566 | DIE(aTHX_ "Illegal modulus zero"); | |
| a0cec769 YST |
2567 | /* avoid FPE_INTOVF on some platforms when left is IV_MIN */ |
| 2568 | if (right == -1) | |
| 2569 | SETi( 0 ); | |
| 2570 | else | |
| 2571 | SETi( left % PERL_ABS(right) ); | |
| 224ec323 JH |
2572 | RETURN; |
| 2573 | } | |
| 224ec323 | 2574 | } |
| fce2b89e | 2575 | #endif |
| 224ec323 | 2576 | |
| a0d0e21e | 2577 | PP(pp_i_modulo) |
| 79072805 | 2578 | { |
| 27da23d5 | 2579 | dVAR; dSP; dATARGET; tryAMAGICbin(modulo,opASSIGN); |
| 224ec323 JH |
2580 | { |
| 2581 | dPOPTOPiirl; | |
| 2582 | if (!right) | |
| 2583 | DIE(aTHX_ "Illegal modulus zero"); | |
| 2584 | /* The assumption is to use hereafter the old vanilla version... */ | |
| 2585 | PL_op->op_ppaddr = | |
| 2586 | PL_ppaddr[OP_I_MODULO] = | |
| 1c127fab | 2587 | Perl_pp_i_modulo_0; |
| 224ec323 JH |
2588 | /* .. but if we have glibc, we might have a buggy _moddi3 |
| 2589 | * (at least glicb 2.2.5 is known to have this bug), in other | |
| 2590 | * words our integer modulus with negative quad as the second | |
| 2591 | * argument might be broken. Test for this and re-patch the | |
| 2592 | * opcode dispatch table if that is the case, remembering to | |
| 2593 | * also apply the workaround so that this first round works | |
| 2594 | * right, too. See [perl #9402] for more information. */ | |
| 2595 | #if defined(__GLIBC__) && IVSIZE == 8 | |
| 2596 | { | |
| 2597 | IV l = 3; | |
| 2598 | IV r = -10; | |
| 2599 | /* Cannot do this check with inlined IV constants since | |
| 2600 | * that seems to work correctly even with the buggy glibc. */ | |
| 2601 | if (l % r == -3) { | |
| 2602 | /* Yikes, we have the bug. | |
| 2603 | * Patch in the workaround version. */ | |
| 2604 | PL_op->op_ppaddr = | |
| 2605 | PL_ppaddr[OP_I_MODULO] = | |
| 2606 | &Perl_pp_i_modulo_1; | |
| 2607 | /* Make certain we work right this time, too. */ | |
| 32fdb065 | 2608 | right = PERL_ABS(right); |
| 224ec323 JH |
2609 | } |
| 2610 | } | |
| 2611 | #endif | |
| a0cec769 YST |
2612 | /* avoid FPE_INTOVF on some platforms when left is IV_MIN */ |
| 2613 | if (right == -1) | |
| 2614 | SETi( 0 ); | |
| 2615 | else | |
| 2616 | SETi( left % right ); | |
| 224ec323 JH |
2617 | RETURN; |
| 2618 | } | |
| 79072805 LW |
2619 | } |
| 2620 | ||
| a0d0e21e | 2621 | PP(pp_i_add) |
| 79072805 | 2622 | { |
| 97aff369 | 2623 | dVAR; dSP; dATARGET; tryAMAGICbin(add,opASSIGN); |
| a0d0e21e | 2624 | { |
| 5e66d4f1 | 2625 | dPOPTOPiirl_ul; |
| a0d0e21e LW |
2626 | SETi( left + right ); |
| 2627 | RETURN; | |
| 79072805 | 2628 | } |
| 79072805 LW |
2629 | } |
| 2630 | ||
| a0d0e21e | 2631 | PP(pp_i_subtract) |
| 79072805 | 2632 | { |
| 97aff369 | 2633 | dVAR; dSP; dATARGET; tryAMAGICbin(subtr,opASSIGN); |
| a0d0e21e | 2634 | { |
| 5e66d4f1 | 2635 | dPOPTOPiirl_ul; |
| a0d0e21e LW |
2636 | SETi( left - right ); |
| 2637 | RETURN; | |
| 79072805 | 2638 | } |
| 79072805 LW |
2639 | } |
| 2640 | ||
| a0d0e21e | 2641 | PP(pp_i_lt) |
| 79072805 | 2642 | { |
| 97aff369 | 2643 | dVAR; dSP; tryAMAGICbinSET(lt,0); |
| a0d0e21e LW |
2644 | { |
| 2645 | dPOPTOPiirl; | |
| 54310121 | 2646 | SETs(boolSV(left < right)); |
| a0d0e21e LW |
2647 | RETURN; |
| 2648 | } | |
| 79072805 LW |
2649 | } |
| 2650 | ||
| a0d0e21e | 2651 | PP(pp_i_gt) |
| 79072805 | 2652 | { |
| 97aff369 | 2653 | dVAR; dSP; tryAMAGICbinSET(gt,0); |
| a0d0e21e LW |
2654 | { |
| 2655 | dPOPTOPiirl; | |
| 54310121 | 2656 | SETs(boolSV(left > right)); |
| a0d0e21e LW |
2657 | RETURN; |
| 2658 | } | |
| 79072805 LW |
2659 | } |
| 2660 | ||
| a0d0e21e | 2661 | PP(pp_i_le) |
| 79072805 | 2662 | { |
| 97aff369 | 2663 | dVAR; dSP; tryAMAGICbinSET(le,0); |
| a0d0e21e LW |
2664 | { |
| 2665 | dPOPTOPiirl; | |
| 54310121 | 2666 | SETs(boolSV(left <= right)); |
| a0d0e21e | 2667 | RETURN; |
| 85e6fe83 | 2668 | } |
| 79072805 LW |
2669 | } |
| 2670 | ||
| a0d0e21e | 2671 | PP(pp_i_ge) |
| 79072805 | 2672 | { |
| 97aff369 | 2673 | dVAR; dSP; tryAMAGICbinSET(ge,0); |
| a0d0e21e LW |
2674 | { |
| 2675 | dPOPTOPiirl; | |
| 54310121 | 2676 | SETs(boolSV(left >= right)); |
| a0d0e21e LW |
2677 | RETURN; |
| 2678 | } | |
| 79072805 LW |
2679 | } |
| 2680 | ||
| a0d0e21e | 2681 | PP(pp_i_eq) |
| 79072805 | 2682 | { |
| 97aff369 | 2683 | dVAR; dSP; tryAMAGICbinSET(eq,0); |
| a0d0e21e LW |
2684 | { |
| 2685 | dPOPTOPiirl; | |
| 54310121 | 2686 | SETs(boolSV(left == right)); |
| a0d0e21e LW |
2687 | RETURN; |
| 2688 | } | |
| 79072805 LW |
2689 | } |
| 2690 | ||
| a0d0e21e | 2691 | PP(pp_i_ne) |
| 79072805 | 2692 | { |
| 97aff369 | 2693 | dVAR; dSP; tryAMAGICbinSET(ne,0); |
| a0d0e21e LW |
2694 | { |
| 2695 | dPOPTOPiirl; | |
| 54310121 | 2696 | SETs(boolSV(left != right)); |
| a0d0e21e LW |
2697 | RETURN; |
| 2698 | } | |
| 79072805 LW |
2699 | } |
| 2700 | ||
| a0d0e21e | 2701 | PP(pp_i_ncmp) |
| 79072805 | 2702 | { |
| 97aff369 | 2703 | dVAR; dSP; dTARGET; tryAMAGICbin(ncmp,0); |
| a0d0e21e LW |
2704 | { |
| 2705 | dPOPTOPiirl; | |
| 2706 | I32 value; | |
| 79072805 | 2707 | |
| a0d0e21e | 2708 | if (left > right) |
| 79072805 | 2709 | value = 1; |
| a0d0e21e | 2710 | else if (left < right) |
| 79072805 | 2711 | value = -1; |
| a0d0e21e | 2712 | else |
| 79072805 | 2713 | value = 0; |
| a0d0e21e LW |
2714 | SETi(value); |
| 2715 | RETURN; | |
| 79072805 | 2716 | } |
| 85e6fe83 LW |
2717 | } |
| 2718 | ||
| 2719 | PP(pp_i_negate) | |
| 2720 | { | |
| 97aff369 | 2721 | dVAR; dSP; dTARGET; tryAMAGICun(neg); |
| 85e6fe83 LW |
2722 | SETi(-TOPi); |
| 2723 | RETURN; | |
| 2724 | } | |
| 2725 | ||
| 79072805 LW |
2726 | /* High falutin' math. */ |
| 2727 | ||
| 2728 | PP(pp_atan2) | |
| 2729 | { | |
| 97aff369 | 2730 | dVAR; dSP; dTARGET; tryAMAGICbin(atan2,0); |
| a0d0e21e LW |
2731 | { |
| 2732 | dPOPTOPnnrl; | |
| 65202027 | 2733 | SETn(Perl_atan2(left, right)); |
| a0d0e21e LW |
2734 | RETURN; |
| 2735 | } | |
| 79072805 LW |
2736 | } |
| 2737 | ||
| 2738 | PP(pp_sin) | |
| 2739 | { | |
| 71302fe3 NC |
2740 | dVAR; dSP; dTARGET; |
| 2741 | int amg_type = sin_amg; | |
| 2742 | const char *neg_report = NULL; | |
| bc81784a | 2743 | NV (*func)(NV) = Perl_sin; |
| 71302fe3 NC |
2744 | const int op_type = PL_op->op_type; |
| 2745 | ||
| 2746 | switch (op_type) { | |
| 2747 | case OP_COS: | |
| 2748 | amg_type = cos_amg; | |
| bc81784a | 2749 | func = Perl_cos; |
| 71302fe3 NC |
2750 | break; |
| 2751 | case OP_EXP: | |
| 2752 | amg_type = exp_amg; | |
| bc81784a | 2753 | func = Perl_exp; |
| 71302fe3 NC |
2754 | break; |
| 2755 | case OP_LOG: | |
| 2756 | amg_type = log_amg; | |
| bc81784a | 2757 | func = Perl_log; |
| 71302fe3 NC |
2758 | neg_report = "log"; |
| 2759 | break; | |
| 2760 | case OP_SQRT: | |
| 2761 | amg_type = sqrt_amg; | |
| bc81784a | 2762 | func = Perl_sqrt; |
| 71302fe3 NC |
2763 | neg_report = "sqrt"; |
| 2764 | break; | |
| a0d0e21e | 2765 | } |
| 79072805 | 2766 | |
| 71302fe3 | 2767 | tryAMAGICun_var(amg_type); |
| a0d0e21e | 2768 | { |
| 1b6737cc | 2769 | const NV value = POPn; |
| 71302fe3 NC |
2770 | if (neg_report) { |
| 2771 | if (op_type == OP_LOG ? (value <= 0.0) : (value < 0.0)) { | |
| 2772 | SET_NUMERIC_STANDARD(); | |
| 2773 | DIE(aTHX_ "Can't take %s of %"NVgf, neg_report, value); | |
| 2774 | } | |
| 2775 | } | |
| 2776 | XPUSHn(func(value)); | |
| a0d0e21e LW |
2777 | RETURN; |
| 2778 | } | |
| 79072805 LW |
2779 | } |
| 2780 | ||
| 56cb0a1c AD |
2781 | /* Support Configure command-line overrides for rand() functions. |
| 2782 | After 5.005, perhaps we should replace this by Configure support | |
| 2783 | for drand48(), random(), or rand(). For 5.005, though, maintain | |
| 2784 | compatibility by calling rand() but allow the user to override it. | |
| 2785 | See INSTALL for details. --Andy Dougherty 15 July 1998 | |
| 2786 | */ | |
| 85ab1d1d JH |
2787 | /* Now it's after 5.005, and Configure supports drand48() and random(), |
| 2788 | in addition to rand(). So the overrides should not be needed any more. | |
| 2789 | --Jarkko Hietaniemi 27 September 1998 | |
| 2790 | */ | |
| 2791 | ||
| 2792 | #ifndef HAS_DRAND48_PROTO | |
| 20ce7b12 | 2793 | extern double drand48 (void); |
| 56cb0a1c AD |
2794 | #endif |
| 2795 | ||
| 79072805 LW |
2796 | PP(pp_rand) |
| 2797 | { | |
| 97aff369 | 2798 | dVAR; dSP; dTARGET; |
| 65202027 | 2799 | NV value; |
| 79072805 LW |
2800 | if (MAXARG < 1) |
| 2801 | value = 1.0; | |
| 2802 | else | |
| 2803 | value = POPn; | |
| 2804 | if (value == 0.0) | |
| 2805 | value = 1.0; | |
| 80252599 | 2806 | if (!PL_srand_called) { |
| 85ab1d1d | 2807 | (void)seedDrand01((Rand_seed_t)seed()); |
| 80252599 | 2808 | PL_srand_called = TRUE; |
| 93dc8474 | 2809 | } |
| 85ab1d1d | 2810 | value *= Drand01(); |
| 79072805 LW |
2811 | XPUSHn(value); |
| 2812 | RETURN; | |
| 2813 | } | |
| 2814 | ||
| 2815 | PP(pp_srand) | |
| 2816 | { | |
| 97aff369 | 2817 | dVAR; dSP; |
| 0bd48802 | 2818 | const UV anum = (MAXARG < 1) ? seed() : POPu; |
| 85ab1d1d | 2819 | (void)seedDrand01((Rand_seed_t)anum); |
| 80252599 | 2820 | PL_srand_called = TRUE; |
| 79072805 LW |
2821 | EXTEND(SP, 1); |
| 2822 | RETPUSHYES; | |
| 2823 | } | |
| 2824 | ||
| 79072805 LW |
2825 | PP(pp_int) |
| 2826 | { | |
| 97aff369 | 2827 | dVAR; dSP; dTARGET; tryAMAGICun(int); |
| 774d564b | 2828 | { |
| 1b6737cc | 2829 | const IV iv = TOPi; /* attempt to convert to IV if possible. */ |
| 28e5dec8 JH |
2830 | /* XXX it's arguable that compiler casting to IV might be subtly |
| 2831 | different from modf (for numbers inside (IV_MIN,UV_MAX)) in which | |
| 2832 | else preferring IV has introduced a subtle behaviour change bug. OTOH | |
| 2833 | relying on floating point to be accurate is a bug. */ | |
| 2834 | ||
| 922c4365 MHM |
2835 | if (!SvOK(TOPs)) |
| 2836 | SETu(0); | |
| 2837 | else if (SvIOK(TOPs)) { | |
| 28e5dec8 | 2838 | if (SvIsUV(TOPs)) { |
| 1b6737cc | 2839 | const UV uv = TOPu; |
| 28e5dec8 JH |
2840 | SETu(uv); |
| 2841 | } else | |
| 2842 | SETi(iv); | |
| 2843 | } else { | |
| 1b6737cc | 2844 | const NV value = TOPn; |
| 1048ea30 | 2845 | if (value >= 0.0) { |
| 28e5dec8 JH |
2846 | if (value < (NV)UV_MAX + 0.5) { |
| 2847 | SETu(U_V(value)); | |
| 2848 | } else { | |
| 059a1014 | 2849 | SETn(Perl_floor(value)); |
| 28e5dec8 | 2850 | } |
| 1048ea30 | 2851 | } |
| 28e5dec8 JH |
2852 | else { |
| 2853 | if (value > (NV)IV_MIN - 0.5) { | |
| 2854 | SETi(I_V(value)); | |
| 2855 | } else { | |
| 1bbae031 | 2856 | SETn(Perl_ceil(value)); |
| 28e5dec8 JH |
2857 | } |
| 2858 | } | |
| 774d564b | 2859 | } |
| 79072805 | 2860 | } |
| 79072805 LW |
2861 | RETURN; |
| 2862 | } | |
| 2863 | ||
| 463ee0b2 LW |
2864 | PP(pp_abs) |
| 2865 | { | |
| 97aff369 | 2866 | dVAR; dSP; dTARGET; tryAMAGICun(abs); |
| a0d0e21e | 2867 | { |
| 28e5dec8 | 2868 | /* This will cache the NV value if string isn't actually integer */ |
| 1b6737cc | 2869 | const IV iv = TOPi; |
| a227d84d | 2870 | |
| 922c4365 MHM |
2871 | if (!SvOK(TOPs)) |
| 2872 | SETu(0); | |
| 2873 | else if (SvIOK(TOPs)) { | |
| 28e5dec8 JH |
2874 | /* IVX is precise */ |
| 2875 | if (SvIsUV(TOPs)) { | |
| 2876 | SETu(TOPu); /* force it to be numeric only */ | |
| 2877 | } else { | |
| 2878 | if (iv >= 0) { | |
| 2879 | SETi(iv); | |
| 2880 | } else { | |
| 2881 | if (iv != IV_MIN) { | |
| 2882 | SETi(-iv); | |
| 2883 | } else { | |
| 2884 | /* 2s complement assumption. Also, not really needed as | |
| 2885 | IV_MIN and -IV_MIN should both be %100...00 and NV-able */ | |
| 2886 | SETu(IV_MIN); | |
| 2887 | } | |
| a227d84d | 2888 | } |
| 28e5dec8 JH |
2889 | } |
| 2890 | } else{ | |
| 1b6737cc | 2891 | const NV value = TOPn; |
| 774d564b | 2892 | if (value < 0.0) |
| 1b6737cc | 2893 | SETn(-value); |
| a4474c9e DD |
2894 | else |
| 2895 | SETn(value); | |
| 774d564b | 2896 | } |
| a0d0e21e | 2897 | } |
| 774d564b | 2898 | RETURN; |
| 463ee0b2 LW |
2899 | } |
| 2900 | ||
| 79072805 LW |
2901 | PP(pp_oct) |
| 2902 | { | |
| 97aff369 | 2903 | dVAR; dSP; dTARGET; |
| 5c144d81 | 2904 | const char *tmps; |
| 53305cf1 | 2905 | I32 flags = PERL_SCAN_ALLOW_UNDERSCORES; |
| 6f894ead | 2906 | STRLEN len; |
| 53305cf1 NC |
2907 | NV result_nv; |
| 2908 | UV result_uv; | |
| 1b6737cc | 2909 | SV* const sv = POPs; |
| 79072805 | 2910 | |
| 349d4f2f | 2911 | tmps = (SvPV_const(sv, len)); |
| 2bc69dc4 NIS |
2912 | if (DO_UTF8(sv)) { |
| 2913 | /* If Unicode, try to downgrade | |
| 2914 | * If not possible, croak. */ | |
| 1b6737cc | 2915 | SV* const tsv = sv_2mortal(newSVsv(sv)); |
| 2bc69dc4 NIS |
2916 | |
| 2917 | SvUTF8_on(tsv); | |
| 2918 | sv_utf8_downgrade(tsv, FALSE); | |
| 349d4f2f | 2919 | tmps = SvPV_const(tsv, len); |
| 2bc69dc4 | 2920 | } |
| daa2adfd NC |
2921 | if (PL_op->op_type == OP_HEX) |
| 2922 | goto hex; | |
| 2923 | ||
| 6f894ead | 2924 | while (*tmps && len && isSPACE(*tmps)) |
| 53305cf1 | 2925 | tmps++, len--; |
| 9e24b6e2 | 2926 | if (*tmps == '0') |
| 53305cf1 | 2927 | tmps++, len--; |
| daa2adfd NC |
2928 | if (*tmps == 'x') { |
| 2929 | hex: | |
| 53305cf1 | 2930 | result_uv = grok_hex (tmps, &len, &flags, &result_nv); |
| daa2adfd | 2931 | } |
| 9e24b6e2 | 2932 | else if (*tmps == 'b') |
| 53305cf1 | 2933 | result_uv = grok_bin (tmps, &len, &flags, &result_nv); |
| 464e2e8a | 2934 | else |
| 53305cf1 NC |
2935 | result_uv = grok_oct (tmps, &len, &flags, &result_nv); |
| 2936 | ||
| 2937 | if (flags & PERL_SCAN_GREATER_THAN_UV_MAX) { | |
| 2938 | XPUSHn(result_nv); | |
| 2939 | } | |
| 2940 | else { | |
| 2941 | XPUSHu(result_uv); | |
| 2942 | } | |
| 79072805 LW |
2943 | RETURN; |
| 2944 | } | |
| 2945 | ||
| 2946 | /* String stuff. */ | |
| 2947 | ||
| 2948 | PP(pp_length) | |
| 2949 | { | |
| 97aff369 | 2950 | dVAR; dSP; dTARGET; |
| 0bd48802 | 2951 | SV * const sv = TOPs; |
| a0ed51b3 | 2952 | |
| 92331800 NC |
2953 | if (SvAMAGIC(sv)) { |
| 2954 | /* For an overloaded scalar, we can't know in advance if it's going to | |
| 2955 | be UTF-8 or not. Also, we can't call sv_len_utf8 as it likes to | |
| 2956 | cache the length. Maybe that should be a documented feature of it. | |
| 2957 | */ | |
| 2958 | STRLEN len; | |
| 2959 | const char *const p = SvPV_const(sv, len); | |
| 2960 | ||
| 2961 | if (DO_UTF8(sv)) { | |
| 899be101 | 2962 | SETi(utf8_length((U8*)p, (U8*)p + len)); |
| 92331800 NC |
2963 | } |
| 2964 | else | |
| 2965 | SETi(len); | |
| 2966 | ||
| 2967 | } | |
| 2968 | else if (DO_UTF8(sv)) | |
| 7e2040f0 GS |
2969 | SETi(sv_len_utf8(sv)); |
| 2970 | else | |
| 2971 | SETi(sv_len(sv)); | |
| 79072805 LW |
2972 | RETURN; |
| 2973 | } | |
| 2974 | ||
| 2975 | PP(pp_substr) | |
| 2976 | { | |
| 97aff369 | 2977 | dVAR; dSP; dTARGET; |
| 79072805 | 2978 | SV *sv; |
| 9c5ffd7c | 2979 | I32 len = 0; |
| 463ee0b2 | 2980 | STRLEN curlen; |
| 9402d6ed | 2981 | STRLEN utf8_curlen; |
| 79072805 LW |
2982 | I32 pos; |
| 2983 | I32 rem; | |
| 84902520 | 2984 | I32 fail; |
| e1ec3a88 AL |
2985 | const I32 lvalue = PL_op->op_flags & OPf_MOD || LVRET; |
| 2986 | const char *tmps; | |
| fc15ae8f | 2987 | const I32 arybase = CopARYBASE_get(PL_curcop); |
| 9402d6ed | 2988 | SV *repl_sv = NULL; |
| cbbf8932 | 2989 | const char *repl = NULL; |
| 7b8d334a | 2990 | STRLEN repl_len; |
| 1b6737cc | 2991 | const int num_args = PL_op->op_private & 7; |
| 13e30c65 | 2992 | bool repl_need_utf8_upgrade = FALSE; |
| 9402d6ed | 2993 | bool repl_is_utf8 = FALSE; |
| 79072805 | 2994 | |
| 20408e3c | 2995 | SvTAINTED_off(TARG); /* decontaminate */ |
| 7e2040f0 | 2996 | SvUTF8_off(TARG); /* decontaminate */ |
| 78f9721b SM |
2997 | if (num_args > 2) { |
| 2998 | if (num_args > 3) { | |
| 9402d6ed | 2999 | repl_sv = POPs; |
| 83003860 | 3000 | repl = SvPV_const(repl_sv, repl_len); |
| 9402d6ed | 3001 | repl_is_utf8 = DO_UTF8(repl_sv) && SvCUR(repl_sv); |
| 7b8d334a | 3002 | } |
| 79072805 | 3003 | len = POPi; |
| 5d82c453 | 3004 | } |
| 84902520 | 3005 | pos = POPi; |
| 79072805 | 3006 | sv = POPs; |
| 849ca7ee | 3007 | PUTBACK; |
| 9402d6ed JH |
3008 | if (repl_sv) { |
| 3009 | if (repl_is_utf8) { | |
| 3010 | if (!DO_UTF8(sv)) | |
| 3011 | sv_utf8_upgrade(sv); | |
| 3012 | } | |
| 13e30c65 JH |
3013 | else if (DO_UTF8(sv)) |
| 3014 | repl_need_utf8_upgrade = TRUE; | |
| 9402d6ed | 3015 | } |
| 5c144d81 | 3016 | tmps = SvPV_const(sv, curlen); |
| 7e2040f0 | 3017 | if (DO_UTF8(sv)) { |
| 9402d6ed JH |
3018 | utf8_curlen = sv_len_utf8(sv); |
| 3019 | if (utf8_curlen == curlen) | |
| 3020 | utf8_curlen = 0; | |
| a0ed51b3 | 3021 | else |
| 9402d6ed | 3022 | curlen = utf8_curlen; |
| a0ed51b3 | 3023 | } |
| d1c2b58a | 3024 | else |
| 9402d6ed | 3025 | utf8_curlen = 0; |
| a0ed51b3 | 3026 | |
| 84902520 TB |
3027 | if (pos >= arybase) { |
| 3028 | pos -= arybase; | |
| 3029 | rem = curlen-pos; | |
| 3030 | fail = rem; | |
| 78f9721b | 3031 | if (num_args > 2) { |
| 5d82c453 GA |
3032 | if (len < 0) { |
| 3033 | rem += len; | |
| 3034 | if (rem < 0) | |
| 3035 | rem = 0; | |
| 3036 | } | |
| 3037 | else if (rem > len) | |
| 3038 | rem = len; | |
| 3039 | } | |
| 68dc0745 | 3040 | } |
| 84902520 | 3041 | else { |
| 5d82c453 | 3042 | pos += curlen; |
| 78f9721b | 3043 | if (num_args < 3) |
| 5d82c453 GA |
3044 | rem = curlen; |
| 3045 | else if (len >= 0) { | |
| 3046 | rem = pos+len; | |
| 3047 | if (rem > (I32)curlen) | |
| 3048 | rem = curlen; | |
| 3049 | } | |
| 3050 | else { | |
| 3051 | rem = curlen+len; | |
| 3052 | if (rem < pos) | |
| 3053 | rem = pos; | |
| 3054 | } | |
| 3055 | if (pos < 0) | |
| 3056 | pos = 0; | |
| 3057 | fail = rem; | |
| 3058 | rem -= pos; | |
| 84902520 TB |
3059 | } |
| 3060 | if (fail < 0) { | |
| e476b1b5 GS |
3061 | if (lvalue || repl) |
| 3062 | Perl_croak(aTHX_ "substr outside of string"); | |
| 3063 | if (ckWARN(WARN_SUBSTR)) | |
| 9014280d | 3064 | Perl_warner(aTHX_ packWARN(WARN_SUBSTR), "substr outside of string"); |
| 2304df62 AD |
3065 | RETPUSHUNDEF; |
| 3066 | } | |
| 79072805 | 3067 | else { |
| 1b6737cc AL |
3068 | const I32 upos = pos; |
| 3069 | const I32 urem = rem; | |
| 9402d6ed | 3070 | if (utf8_curlen) |
| a0ed51b3 | 3071 | sv_pos_u2b(sv, &pos, &rem); |
| 79072805 | 3072 | tmps += pos; |
| 781e7547 DM |
3073 | /* we either return a PV or an LV. If the TARG hasn't been used |
| 3074 | * before, or is of that type, reuse it; otherwise use a mortal | |
| 3075 | * instead. Note that LVs can have an extended lifetime, so also | |
| 3076 | * dont reuse if refcount > 1 (bug #20933) */ | |
| 3077 | if (SvTYPE(TARG) > SVt_NULL) { | |
| 3078 | if ( (SvTYPE(TARG) == SVt_PVLV) | |
| 3079 | ? (!lvalue || SvREFCNT(TARG) > 1) | |
| 3080 | : lvalue) | |
| 3081 | { | |
| 3082 | TARG = sv_newmortal(); | |
| 3083 | } | |
| 3084 | } | |
| 3085 | ||
| 79072805 | 3086 | sv_setpvn(TARG, tmps, rem); |
| 12aa1545 | 3087 | #ifdef USE_LOCALE_COLLATE |
| 14befaf4 | 3088 | sv_unmagic(TARG, PERL_MAGIC_collxfrm); |
| 12aa1545 | 3089 | #endif |
| 9402d6ed | 3090 | if (utf8_curlen) |
| 7f66633b | 3091 | SvUTF8_on(TARG); |
| f7928d6c | 3092 | if (repl) { |
| 13e30c65 JH |
3093 | SV* repl_sv_copy = NULL; |
| 3094 | ||
| 3095 | if (repl_need_utf8_upgrade) { | |
| 3096 | repl_sv_copy = newSVsv(repl_sv); | |
| 3097 | sv_utf8_upgrade(repl_sv_copy); | |
| 349d4f2f | 3098 | repl = SvPV_const(repl_sv_copy, repl_len); |
| 13e30c65 JH |
3099 | repl_is_utf8 = DO_UTF8(repl_sv_copy) && SvCUR(sv); |
| 3100 | } | |
| c8faf1c5 | 3101 | sv_insert(sv, pos, rem, repl, repl_len); |
| 9402d6ed | 3102 | if (repl_is_utf8) |
| f7928d6c | 3103 | SvUTF8_on(sv); |
| 9402d6ed JH |
3104 | if (repl_sv_copy) |
| 3105 | SvREFCNT_dec(repl_sv_copy); | |
| f7928d6c | 3106 | } |
| c8faf1c5 | 3107 | else if (lvalue) { /* it's an lvalue! */ |
| dedeecda | 3108 | if (!SvGMAGICAL(sv)) { |
| 3109 | if (SvROK(sv)) { | |
| 13c5b33c | 3110 | SvPV_force_nolen(sv); |
| 599cee73 | 3111 | if (ckWARN(WARN_SUBSTR)) |
| 9014280d | 3112 | Perl_warner(aTHX_ packWARN(WARN_SUBSTR), |
| 599cee73 | 3113 | "Attempt to use reference as lvalue in substr"); |
| dedeecda | 3114 | } |
| f7877b28 NC |
3115 | if (isGV_with_GP(sv)) |
| 3116 | SvPV_force_nolen(sv); | |
| 3117 | else if (SvOK(sv)) /* is it defined ? */ | |
| 7f66633b | 3118 | (void)SvPOK_only_UTF8(sv); |
| dedeecda | 3119 | else |
| 3120 | sv_setpvn(sv,"",0); /* avoid lexical reincarnation */ | |
| 3121 | } | |
| 5f05dabc | 3122 | |
| a0d0e21e LW |
3123 | if (SvTYPE(TARG) < SVt_PVLV) { |
| 3124 | sv_upgrade(TARG, SVt_PVLV); | |
| c445ea15 | 3125 | sv_magic(TARG, NULL, PERL_MAGIC_substr, NULL, 0); |
| ed6116ce | 3126 | } |
| 6214ab63 | 3127 | else |
| 0c34ef67 | 3128 | SvOK_off(TARG); |
| a0d0e21e | 3129 | |
| 5f05dabc | 3130 | LvTYPE(TARG) = 'x'; |
| 6ff81951 GS |
3131 | if (LvTARG(TARG) != sv) { |
| 3132 | if (LvTARG(TARG)) | |
| 3133 | SvREFCNT_dec(LvTARG(TARG)); | |
| b37c2d43 | 3134 | LvTARG(TARG) = SvREFCNT_inc_simple(sv); |
| 6ff81951 | 3135 | } |
| 9aa983d2 JH |
3136 | LvTARGOFF(TARG) = upos; |
| 3137 | LvTARGLEN(TARG) = urem; | |
| 79072805 LW |
3138 | } |
| 3139 | } | |
| 849ca7ee | 3140 | SPAGAIN; |
| 79072805 LW |
3141 | PUSHs(TARG); /* avoid SvSETMAGIC here */ |
| 3142 | RETURN; | |
| 3143 | } | |
| 3144 | ||
| 3145 | PP(pp_vec) | |
| 3146 | { | |
| 97aff369 | 3147 | dVAR; dSP; dTARGET; |
| 1b6737cc AL |
3148 | register const IV size = POPi; |
| 3149 | register const IV offset = POPi; | |
| 3150 | register SV * const src = POPs; | |
| 3151 | const I32 lvalue = PL_op->op_flags & OPf_MOD || LVRET; | |
| a0d0e21e | 3152 | |
| 81e118e0 JH |
3153 | SvTAINTED_off(TARG); /* decontaminate */ |
| 3154 | if (lvalue) { /* it's an lvalue! */ | |
| 24aef97f HS |
3155 | if (SvREFCNT(TARG) > 1) /* don't share the TARG (#20933) */ |
| 3156 | TARG = sv_newmortal(); | |
| 81e118e0 JH |
3157 | if (SvTYPE(TARG) < SVt_PVLV) { |
| 3158 | sv_upgrade(TARG, SVt_PVLV); | |
| c445ea15 | 3159 | sv_magic(TARG, NULL, PERL_MAGIC_vec, NULL, 0); |
| 79072805 | 3160 | } |
| 81e118e0 JH |
3161 | LvTYPE(TARG) = 'v'; |
| 3162 | if (LvTARG(TARG) != src) { | |
| 3163 | if (LvTARG(TARG)) | |
| 3164 | SvREFCNT_dec(LvTARG(TARG)); | |
| b37c2d43 | 3165 | LvTARG(TARG) = SvREFCNT_inc_simple(src); |
| 79072805 | 3166 | } |
| 81e118e0 JH |
3167 | LvTARGOFF(TARG) = offset; |
| 3168 | LvTARGLEN(TARG) = size; | |
| 79072805 LW |
3169 | } |
| 3170 | ||
| 81e118e0 | 3171 | sv_setuv(TARG, do_vecget(src, offset, size)); |
| 79072805 LW |
3172 | PUSHs(TARG); |
| 3173 | RETURN; | |
| 3174 | } | |
| 3175 | ||
| 3176 | PP(pp_index) | |
| 3177 | { | |
| 97aff369 | 3178 | dVAR; dSP; dTARGET; |
| 79072805 LW |
3179 | SV *big; |
| 3180 | SV *little; | |
| c445ea15 | 3181 | SV *temp = NULL; |
| ad66a58c | 3182 | STRLEN biglen; |
| 2723d216 | 3183 | STRLEN llen = 0; |
| 79072805 LW |
3184 | I32 offset; |
| 3185 | I32 retval; | |
| 73ee8be2 NC |
3186 | const char *big_p; |
| 3187 | const char *little_p; | |
| fc15ae8f | 3188 | const I32 arybase = CopARYBASE_get(PL_curcop); |
| 2f040f7f NC |
3189 | bool big_utf8; |
| 3190 | bool little_utf8; | |
| 2723d216 | 3191 | const bool is_index = PL_op->op_type == OP_INDEX; |
| 79072805 | 3192 | |
| 2723d216 NC |
3193 | if (MAXARG >= 3) { |
| 3194 | /* arybase is in characters, like offset, so combine prior to the | |
| 3195 | UTF-8 to bytes calculation. */ | |
| 79072805 | 3196 | offset = POPi - arybase; |
| 2723d216 | 3197 | } |
| 79072805 LW |
3198 | little = POPs; |
| 3199 | big = POPs; | |
| 73ee8be2 NC |
3200 | big_p = SvPV_const(big, biglen); |
| 3201 | little_p = SvPV_const(little, llen); | |
| 3202 | ||
| e609e586 NC |
3203 | big_utf8 = DO_UTF8(big); |
| 3204 | little_utf8 = DO_UTF8(little); | |
| 3205 | if (big_utf8 ^ little_utf8) { | |
| 3206 | /* One needs to be upgraded. */ | |
| 2f040f7f NC |
3207 | if (little_utf8 && !PL_encoding) { |
| 3208 | /* Well, maybe instead we might be able to downgrade the small | |
| 3209 | string? */ | |
| 1eced8f8 | 3210 | char * const pv = (char*)bytes_from_utf8((U8 *)little_p, &llen, |
| 2f040f7f NC |
3211 | &little_utf8); |
| 3212 | if (little_utf8) { | |
| 3213 | /* If the large string is ISO-8859-1, and it's not possible to | |
| 3214 | convert the small string to ISO-8859-1, then there is no | |
| 3215 | way that it could be found anywhere by index. */ | |
| 3216 | retval = -1; | |
| 3217 | goto fail; | |
| 3218 | } | |
| e609e586 | 3219 | |
| 2f040f7f NC |
3220 | /* At this point, pv is a malloc()ed string. So donate it to temp |
| 3221 | to ensure it will get free()d */ | |
| 3222 | little = temp = newSV(0); | |
| 73ee8be2 NC |
3223 | sv_usepvn(temp, pv, llen); |
| 3224 | little_p = SvPVX(little); | |
| e609e586 | 3225 | } else { |
| 73ee8be2 NC |
3226 | temp = little_utf8 |
| 3227 | ? newSVpvn(big_p, biglen) : newSVpvn(little_p, llen); | |
| 2f040f7f NC |
3228 | |
| 3229 | if (PL_encoding) { | |
| 3230 | sv_recode_to_utf8(temp, PL_encoding); | |
| 3231 | } else { | |
| 3232 | sv_utf8_upgrade(temp); | |
| 3233 | } | |
| 3234 | if (little_utf8) { | |
| 3235 | big = temp; | |
| 3236 | big_utf8 = TRUE; | |
| 73ee8be2 | 3237 | big_p = SvPV_const(big, biglen); |
| 2f040f7f NC |
3238 | } else { |
| 3239 | little = temp; | |
| 73ee8be2 | 3240 | little_p = SvPV_const(little, llen); |
| 2f040f7f | 3241 | } |
| e609e586 NC |
3242 | } |
| 3243 | } | |
| 73ee8be2 NC |
3244 | if (SvGAMAGIC(big)) { |
| 3245 | /* Life just becomes a lot easier if I use a temporary here. | |
| 3246 | Otherwise I need to avoid calls to sv_pos_u2b(), which (dangerously) | |
| 3247 | will trigger magic and overloading again, as will fbm_instr() | |
| 3248 | */ | |
| 3249 | big = sv_2mortal(newSVpvn(big_p, biglen)); | |
| 3250 | if (big_utf8) | |
| 3251 | SvUTF8_on(big); | |
| 3252 | big_p = SvPVX(big); | |
| 3253 | } | |
| e4e44778 | 3254 | if (SvGAMAGIC(little) || (is_index && !SvOK(little))) { |
| 73ee8be2 NC |
3255 | /* index && SvOK() is a hack. fbm_instr() calls SvPV_const, which will |
| 3256 | warn on undef, and we've already triggered a warning with the | |
| 3257 | SvPV_const some lines above. We can't remove that, as we need to | |
| 3258 | call some SvPV to trigger overloading early and find out if the | |
| 3259 | string is UTF-8. | |
| 3260 | This is all getting to messy. The API isn't quite clean enough, | |
| 3261 | because data access has side effects. | |
| 3262 | */ | |
| 3263 | little = sv_2mortal(newSVpvn(little_p, llen)); | |
| 3264 | if (little_utf8) | |
| 3265 | SvUTF8_on(little); | |
| 3266 | little_p = SvPVX(little); | |
| 3267 | } | |
| e609e586 | 3268 | |
| 79072805 | 3269 | if (MAXARG < 3) |
| 2723d216 | 3270 | offset = is_index ? 0 : biglen; |
| a0ed51b3 | 3271 | else { |
| ad66a58c | 3272 | if (big_utf8 && offset > 0) |
| a0ed51b3 | 3273 | sv_pos_u2b(big, &offset, 0); |
| 73ee8be2 NC |
3274 | if (!is_index) |
| 3275 | offset += llen; | |
| a0ed51b3 | 3276 | } |
| 79072805 LW |
3277 | if (offset < 0) |
| 3278 | offset = 0; | |
| ad66a58c NC |
3279 | else if (offset > (I32)biglen) |
| 3280 | offset = biglen; | |
| 73ee8be2 NC |
3281 | if (!(little_p = is_index |
| 3282 | ? fbm_instr((unsigned char*)big_p + offset, | |
| 3283 | (unsigned char*)big_p + biglen, little, 0) | |
| 3284 | : rninstr(big_p, big_p + offset, | |
| 3285 | little_p, little_p + llen))) | |
| a0ed51b3 | 3286 | retval = -1; |
| ad66a58c | 3287 | else { |
| 73ee8be2 | 3288 | retval = little_p - big_p; |
| ad66a58c NC |
3289 | if (retval > 0 && big_utf8) |
| 3290 | sv_pos_b2u(big, &retval); | |
| 3291 | } | |
| e609e586 NC |
3292 | if (temp) |
| 3293 | SvREFCNT_dec(temp); | |
| 2723d216 | 3294 | fail: |
| a0ed51b3 | 3295 | PUSHi(retval + arybase); |
| 79072805 LW |
3296 | RETURN; |
| 3297 | } | |
| 3298 | ||
| 3299 | PP(pp_sprintf) | |
| 3300 | { | |
| 97aff369 | 3301 | dVAR; dSP; dMARK; dORIGMARK; dTARGET; |
| 79072805 | 3302 | do_sprintf(TARG, SP-MARK, MARK+1); |
| bbce6d69 | 3303 | TAINT_IF(SvTAINTED(TARG)); |
| 79072805 LW |
3304 | SP = ORIGMARK; |
| 3305 | PUSHTARG; | |
| 3306 | RETURN; | |
| 3307 | } | |
| 3308 | ||
| 79072805 LW |
3309 | PP(pp_ord) |
| 3310 | { | |
| 97aff369 | 3311 | dVAR; dSP; dTARGET; |
| 1eced8f8 | 3312 | |
| 7df053ec | 3313 | SV *argsv = POPs; |
| ba210ebe | 3314 | STRLEN len; |
| 349d4f2f | 3315 | const U8 *s = (U8*)SvPV_const(argsv, len); |
| 121910a4 | 3316 | |
| 799ef3cb | 3317 | if (PL_encoding && SvPOK(argsv) && !DO_UTF8(argsv)) { |
| 1eced8f8 | 3318 | SV * const tmpsv = sv_2mortal(newSVsv(argsv)); |
| 799ef3cb | 3319 | s = (U8*)sv_recode_to_utf8(tmpsv, PL_encoding); |
| 121910a4 JH |
3320 | argsv = tmpsv; |
| 3321 | } | |
| 79072805 | 3322 | |
| 872c91ae | 3323 | XPUSHu(DO_UTF8(argsv) ? |
| 89ebb4a3 | 3324 | utf8n_to_uvchr(s, UTF8_MAXBYTES, 0, UTF8_ALLOW_ANYUV) : |
| 872c91ae | 3325 | (*s & 0xff)); |
| 68795e93 | 3326 | |
| 79072805 LW |
3327 | RETURN; |
| 3328 | } | |
| 3329 | ||
| 463ee0b2 LW |
3330 | PP(pp_chr) |
| 3331 | { | |
| 97aff369 | 3332 | dVAR; dSP; dTARGET; |
| 463ee0b2 | 3333 | char *tmps; |
| 8a064bd6 JH |
3334 | UV value; |
| 3335 | ||
| 3336 | if (((SvIOK_notUV(TOPs) && SvIV(TOPs) < 0) | |
| 3337 | || | |
| 3338 | (SvNOK(TOPs) && SvNV(TOPs) < 0.0))) { | |
| 3339 | if (IN_BYTES) { | |
| 3340 | value = POPu; /* chr(-1) eq chr(0xff), etc. */ | |
| 3341 | } else { | |
| 3342 | (void) POPs; /* Ignore the argument value. */ | |
| 3343 | value = UNICODE_REPLACEMENT; | |
| 3344 | } | |
| 3345 | } else { | |
| 3346 | value = POPu; | |
| 3347 | } | |
| 463ee0b2 | 3348 | |
| 862a34c6 | 3349 | SvUPGRADE(TARG,SVt_PV); |
| a0ed51b3 | 3350 | |
| 0064a8a9 | 3351 | if (value > 255 && !IN_BYTES) { |
| eb160463 | 3352 | SvGROW(TARG, (STRLEN)UNISKIP(value)+1); |
| 62961d2e | 3353 | tmps = (char*)uvchr_to_utf8_flags((U8*)SvPVX(TARG), value, 0); |
| 349d4f2f | 3354 | SvCUR_set(TARG, tmps - SvPVX_const(TARG)); |
| a0ed51b3 LW |
3355 | *tmps = '\0'; |
| 3356 | (void)SvPOK_only(TARG); | |
| aa6ffa16 | 3357 | SvUTF8_on(TARG); |
| a0ed51b3 LW |
3358 | XPUSHs(TARG); |
| 3359 | RETURN; | |
| 3360 | } | |
| 3361 | ||
| 748a9306 | 3362 | SvGROW(TARG,2); |
| 463ee0b2 LW |
3363 | SvCUR_set(TARG, 1); |
| 3364 | tmps = SvPVX(TARG); | |
| eb160463 | 3365 | *tmps++ = (char)value; |
| 748a9306 | 3366 | *tmps = '\0'; |
| a0d0e21e | 3367 | (void)SvPOK_only(TARG); |
| 88632417 | 3368 | if (PL_encoding && !IN_BYTES) { |
| 799ef3cb | 3369 | sv_recode_to_utf8(TARG, PL_encoding); |
| 88632417 JH |
3370 | tmps = SvPVX(TARG); |
| 3371 | if (SvCUR(TARG) == 0 || !is_utf8_string((U8*)tmps, SvCUR(TARG)) || | |
| 3372 | memEQ(tmps, "\xef\xbf\xbd\0", 4)) { | |
| d5a15ac2 JH |
3373 | SvGROW(TARG, 3); |
| 3374 | tmps = SvPVX(TARG); | |
| 88632417 JH |
3375 | SvCUR_set(TARG, 2); |
| 3376 | *tmps++ = (U8)UTF8_EIGHT_BIT_HI(value); | |
| 3377 | *tmps++ = (U8)UTF8_EIGHT_BIT_LO(value); | |
| 3378 | *tmps = '\0'; | |
| 3379 | SvUTF8_on(TARG); | |
| 3380 | } | |
| 3381 | } | |
| 463ee0b2 LW |
3382 | XPUSHs(TARG); |
| 3383 | RETURN; | |
| 3384 | } | |
| 3385 | ||
| 79072805 LW |
3386 | PP(pp_crypt) |
| 3387 | { | |
| 79072805 | 3388 | #ifdef HAS_CRYPT |
| 97aff369 | 3389 | dVAR; dSP; dTARGET; |
| 5f74f29c | 3390 | dPOPTOPssrl; |
| 85c16d83 | 3391 | STRLEN len; |
| 10516c54 | 3392 | const char *tmps = SvPV_const(left, len); |
| 2bc69dc4 | 3393 | |
| 85c16d83 | 3394 | if (DO_UTF8(left)) { |
| 2bc69dc4 | 3395 | /* If Unicode, try to downgrade. |
| f2791508 JH |
3396 | * If not possible, croak. |
| 3397 | * Yes, we made this up. */ | |
| 1b6737cc | 3398 | SV* const tsv = sv_2mortal(newSVsv(left)); |
| 2bc69dc4 | 3399 | |
| f2791508 | 3400 | SvUTF8_on(tsv); |
| 2bc69dc4 | 3401 | sv_utf8_downgrade(tsv, FALSE); |
| 349d4f2f | 3402 | tmps = SvPV_const(tsv, len); |
| 85c16d83 | 3403 | } |
| 05404ffe JH |
3404 | # ifdef USE_ITHREADS |
| 3405 | # ifdef HAS_CRYPT_R | |
| 3406 | if (!PL_reentrant_buffer->_crypt_struct_buffer) { | |
| 3407 | /* This should be threadsafe because in ithreads there is only | |
| 3408 | * one thread per interpreter. If this would not be true, | |
| 3409 | * we would need a mutex to protect this malloc. */ | |
| 3410 | PL_reentrant_buffer->_crypt_struct_buffer = | |
| 3411 | (struct crypt_data *)safemalloc(sizeof(struct crypt_data)); | |
| 3412 | #if defined(__GLIBC__) || defined(__EMX__) | |
| 3413 | if (PL_reentrant_buffer->_crypt_struct_buffer) { | |
| 3414 | PL_reentrant_buffer->_crypt_struct_buffer->initialized = 0; | |
| 3415 | /* work around glibc-2.2.5 bug */ | |
| 3416 | PL_reentrant_buffer->_crypt_struct_buffer->current_saltbits = 0; | |
| 3417 | } | |
| 05404ffe | 3418 | #endif |
| 6ab58e4d | 3419 | } |
| 05404ffe JH |
3420 | # endif /* HAS_CRYPT_R */ |
| 3421 | # endif /* USE_ITHREADS */ | |
| 5f74f29c | 3422 | # ifdef FCRYPT |
| 83003860 | 3423 | sv_setpv(TARG, fcrypt(tmps, SvPV_nolen_const(right))); |
| 5f74f29c | 3424 | # else |
| 83003860 | 3425 | sv_setpv(TARG, PerlProc_crypt(tmps, SvPV_nolen_const(right))); |
| 5f74f29c | 3426 | # endif |
| 4808266b JH |
3427 | SETs(TARG); |
| 3428 | RETURN; | |
| 79072805 | 3429 | #else |
| b13b2135 | 3430 | DIE(aTHX_ |
| 79072805 LW |
3431 | "The crypt() function is unimplemented due to excessive paranoia."); |
| 3432 | #endif | |
| 79072805 LW |
3433 | } |
| 3434 | ||
| 3435 | PP(pp_ucfirst) | |
| 3436 | { | |
| 97aff369 | 3437 | dVAR; |
| 39644a26 | 3438 | dSP; |
| d54190f6 | 3439 | SV *source = TOPs; |
| a0ed51b3 | 3440 | STRLEN slen; |
| d54190f6 NC |
3441 | STRLEN need; |
| 3442 | SV *dest; | |
| 3443 | bool inplace = TRUE; | |
| 3444 | bool doing_utf8; | |
| 12e9c124 | 3445 | const int op_type = PL_op->op_type; |
| d54190f6 NC |
3446 | const U8 *s; |
| 3447 | U8 *d; | |
| 3448 | U8 tmpbuf[UTF8_MAXBYTES_CASE+1]; | |
| 3449 | STRLEN ulen; | |
| 3450 | STRLEN tculen; | |
| 3451 | ||
| 3452 | SvGETMAGIC(source); | |
| 3453 | if (SvOK(source)) { | |
| 3454 | s = (const U8*)SvPV_nomg_const(source, slen); | |
| 3455 | } else { | |
| 1eced8f8 | 3456 | s = (const U8*)""; |
| d54190f6 NC |
3457 | slen = 0; |
| 3458 | } | |
| a0ed51b3 | 3459 | |
| d54190f6 NC |
3460 | if (slen && DO_UTF8(source) && UTF8_IS_START(*s)) { |
| 3461 | doing_utf8 = TRUE; | |
| 44bc797b | 3462 | utf8_to_uvchr(s, &ulen); |
| 12e9c124 NC |
3463 | if (op_type == OP_UCFIRST) { |
| 3464 | toTITLE_utf8(s, tmpbuf, &tculen); | |
| 3465 | } else { | |
| 3466 | toLOWER_utf8(s, tmpbuf, &tculen); | |
| 3467 | } | |
| d54190f6 | 3468 | /* If the two differ, we definately cannot do inplace. */ |
| 1eced8f8 | 3469 | inplace = (ulen == tculen); |
| d54190f6 NC |
3470 | need = slen + 1 - ulen + tculen; |
| 3471 | } else { | |
| 3472 | doing_utf8 = FALSE; | |
| 3473 | need = slen + 1; | |
| 3474 | } | |
| 3475 | ||
| 3476 | if (SvPADTMP(source) && !SvREADONLY(source) && inplace) { | |
| 3477 | /* We can convert in place. */ | |
| 3478 | ||
| 3479 | dest = source; | |
| 3480 | s = d = (U8*)SvPV_force_nomg(source, slen); | |
| 3481 | } else { | |
| 3482 | dTARGET; | |
| 3483 | ||
| 3484 | dest = TARG; | |
| 3485 | ||
| 3486 | SvUPGRADE(dest, SVt_PV); | |
| 3b416f41 | 3487 | d = (U8*)SvGROW(dest, need); |
| d54190f6 NC |
3488 | (void)SvPOK_only(dest); |
| 3489 | ||
| 3490 | SETs(dest); | |
| 3491 | ||
| 3492 | inplace = FALSE; | |
| 3493 | } | |
| 44bc797b | 3494 | |
| d54190f6 NC |
3495 | if (doing_utf8) { |
| 3496 | if(!inplace) { | |
| 3a2263fe RGS |
3497 | /* slen is the byte length of the whole SV. |
| 3498 | * ulen is the byte length of the original Unicode character | |
| 3499 | * stored as UTF-8 at s. | |
| 12e9c124 NC |
3500 | * tculen is the byte length of the freshly titlecased (or |
| 3501 | * lowercased) Unicode character stored as UTF-8 at tmpbuf. | |
| 3502 | * We first set the result to be the titlecased (/lowercased) | |
| 3503 | * character, and then append the rest of the SV data. */ | |
| d54190f6 | 3504 | sv_setpvn(dest, (char*)tmpbuf, tculen); |
| 3a2263fe | 3505 | if (slen > ulen) |
| d54190f6 NC |
3506 | sv_catpvn(dest, (char*)(s + ulen), slen - ulen); |
| 3507 | SvUTF8_on(dest); | |
| a0ed51b3 LW |
3508 | } |
| 3509 | else { | |
| d54190f6 NC |
3510 | Copy(tmpbuf, d, tculen, U8); |
| 3511 | SvCUR_set(dest, need - 1); | |
| a0ed51b3 | 3512 | } |
| a0ed51b3 | 3513 | } |
| 626727d5 | 3514 | else { |
| d54190f6 | 3515 | if (*s) { |
| 2de3dbcc | 3516 | if (IN_LOCALE_RUNTIME) { |
| 31351b04 | 3517 | TAINT; |
| d54190f6 NC |
3518 | SvTAINTED_on(dest); |
| 3519 | *d = (op_type == OP_UCFIRST) | |
| 3520 | ? toUPPER_LC(*s) : toLOWER_LC(*s); | |
| 31351b04 JS |
3521 | } |
| 3522 | else | |
| d54190f6 NC |
3523 | *d = (op_type == OP_UCFIRST) ? toUPPER(*s) : toLOWER(*s); |
| 3524 | } else { | |
| 3525 | /* See bug #39028 */ | |
| 3526 | *d = *s; | |
| 3527 | } | |
| 3528 | ||
| 3529 | if (SvUTF8(source)) | |
| 3530 | SvUTF8_on(dest); | |
| 3531 | ||
| 3532 | if (!inplace) { | |
| 3533 | /* This will copy the trailing NUL */ | |
| 3534 | Copy(s + 1, d + 1, slen, U8); | |
| 3535 | SvCUR_set(dest, need - 1); | |
| bbce6d69 | 3536 | } |
| bbce6d69 | 3537 | } |
| d54190f6 | 3538 | SvSETMAGIC(dest); |
| 79072805 LW |
3539 | RETURN; |
| 3540 | } | |
| 3541 | ||
| 67306194 NC |
3542 | /* There's so much setup/teardown code common between uc and lc, I wonder if |
| 3543 | it would be worth merging the two, and just having a switch outside each | |
| 3544 | of the three tight loops. */ | |
| 79072805 LW |
3545 | PP(pp_uc) |
| 3546 | { | |
| 97aff369 | 3547 | dVAR; |
| 39644a26 | 3548 | dSP; |
| 67306194 | 3549 | SV *source = TOPs; |
| 463ee0b2 | 3550 | STRLEN len; |
| 67306194 NC |
3551 | STRLEN min; |
| 3552 | SV *dest; | |
| 3553 | const U8 *s; | |
| 3554 | U8 *d; | |
| 79072805 | 3555 | |
| 67306194 NC |
3556 | SvGETMAGIC(source); |
| 3557 | ||
| 3558 | if (SvPADTMP(source) && !SvREADONLY(source) && !SvAMAGIC(source) | |
| 3559 | && !DO_UTF8(source)) { | |
| 3560 | /* We can convert in place. */ | |
| 3561 | ||
| 3562 | dest = source; | |
| 3563 | s = d = (U8*)SvPV_force_nomg(source, len); | |
| 3564 | min = len + 1; | |
| 3565 | } else { | |
| a0ed51b3 | 3566 | dTARGET; |
| a0ed51b3 | 3567 | |
| 67306194 | 3568 | dest = TARG; |
| 128c9517 | 3569 | |
| 67306194 NC |
3570 | /* The old implementation would copy source into TARG at this point. |
| 3571 | This had the side effect that if source was undef, TARG was now | |
| 3572 | an undefined SV with PADTMP set, and they don't warn inside | |
| 3573 | sv_2pv_flags(). However, we're now getting the PV direct from | |
| 3574 | source, which doesn't have PADTMP set, so it would warn. Hence the | |
| 3575 | little games. */ | |
| 3576 | ||
| 3577 | if (SvOK(source)) { | |
| 3578 | s = (const U8*)SvPV_nomg_const(source, len); | |
| 3579 | } else { | |
| 1eced8f8 | 3580 | s = (const U8*)""; |
| 67306194 | 3581 | len = 0; |
| a0ed51b3 | 3582 | } |
| 67306194 NC |
3583 | min = len + 1; |
| 3584 | ||
| 3585 | SvUPGRADE(dest, SVt_PV); | |
| 3b416f41 | 3586 | d = (U8*)SvGROW(dest, min); |
| 67306194 NC |
3587 | (void)SvPOK_only(dest); |
| 3588 | ||
| 3589 | SETs(dest); | |
| a0ed51b3 | 3590 | } |
| 31351b04 | 3591 | |
| 67306194 NC |
3592 | /* Overloaded values may have toggled the UTF-8 flag on source, so we need |
| 3593 | to check DO_UTF8 again here. */ | |
| 3594 | ||
| 3595 | if (DO_UTF8(source)) { | |
| 3596 | const U8 *const send = s + len; | |
| 3597 | U8 tmpbuf[UTF8_MAXBYTES+1]; | |
| 3598 | ||
| 3599 | while (s < send) { | |
| 3600 | const STRLEN u = UTF8SKIP(s); | |
| 3601 | STRLEN ulen; | |
| 3602 | ||
| 3603 | toUPPER_utf8(s, tmpbuf, &ulen); | |
| 3604 | if (ulen > u && (SvLEN(dest) < (min += ulen - u))) { | |
| 3605 | /* If the eventually required minimum size outgrows | |
| 3606 | * the available space, we need to grow. */ | |
| 3607 | const UV o = d - (U8*)SvPVX_const(dest); | |
| 3608 | ||
| 3609 | /* If someone uppercases one million U+03B0s we SvGROW() one | |
| 3610 | * million times. Or we could try guessing how much to | |
| 3611 | allocate without allocating too much. Such is life. */ | |
| 3612 | SvGROW(dest, min); | |
| 3613 | d = (U8*)SvPVX(dest) + o; | |
| 3614 | } | |
| 3615 | Copy(tmpbuf, d, ulen, U8); | |
| 3616 | d += ulen; | |
| 3617 | s += u; | |
| 3618 | } | |
| 3619 | SvUTF8_on(dest); | |
| 3620 | *d = '\0'; | |
| 3621 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); | |
| 3622 | } else { | |
| 3623 | if (len) { | |
| 3624 | const U8 *const send = s + len; | |
| 2de3dbcc | 3625 | if (IN_LOCALE_RUNTIME) { |
| 31351b04 | 3626 | TAINT; |
| 67306194 NC |
3627 | SvTAINTED_on(dest); |
| 3628 | for (; s < send; d++, s++) | |
| 3629 | *d = toUPPER_LC(*s); | |
| 31351b04 JS |
3630 | } |
| 3631 | else { | |
| 67306194 NC |
3632 | for (; s < send; d++, s++) |
| 3633 | *d = toUPPER(*s); | |
| 31351b04 | 3634 | } |
| bbce6d69 | 3635 | } |
| 67306194 NC |
3636 | if (source != dest) { |
| 3637 | *d = '\0'; | |
| 3638 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); | |
| 3639 | } | |
| 79072805 | 3640 | } |
| 67306194 | 3641 | SvSETMAGIC(dest); |
| 79072805 LW |
3642 | RETURN; |
| 3643 | } | |
| 3644 | ||
| 3645 | PP(pp_lc) | |
| 3646 | { | |
| 97aff369 | 3647 | dVAR; |
| 39644a26 | 3648 | dSP; |
| ec9af7d4 | 3649 | SV *source = TOPs; |
| 463ee0b2 | 3650 | STRLEN len; |
| ec9af7d4 NC |
3651 | STRLEN min; |
| 3652 | SV *dest; | |
| 3653 | const U8 *s; | |
| 3654 | U8 *d; | |
| 79072805 | 3655 | |
| ec9af7d4 NC |
3656 | SvGETMAGIC(source); |
| 3657 | ||
| 3658 | if (SvPADTMP(source) && !SvREADONLY(source) && !SvAMAGIC(source) | |
| 3659 | && !DO_UTF8(source)) { | |
| 3660 | /* We can convert in place. */ | |
| 3661 | ||
| 3662 | dest = source; | |
| 3663 | s = d = (U8*)SvPV_force_nomg(source, len); | |
| 3664 | min = len + 1; | |
| 3665 | } else { | |
| a0ed51b3 | 3666 | dTARGET; |
| a0ed51b3 | 3667 | |
| ec9af7d4 NC |
3668 | dest = TARG; |
| 3669 | ||
| 3670 | /* The old implementation would copy source into TARG at this point. | |
| 3671 | This had the side effect that if source was undef, TARG was now | |
| 3672 | an undefined SV with PADTMP set, and they don't warn inside | |
| 3673 | sv_2pv_flags(). However, we're now getting the PV direct from | |
| 3674 | source, which doesn't have PADTMP set, so it would warn. Hence the | |
| 3675 | little games. */ | |
| 3676 | ||
| 3677 | if (SvOK(source)) { | |
| 3678 | s = (const U8*)SvPV_nomg_const(source, len); | |
| 3679 | } else { | |
| 1eced8f8 | 3680 | s = (const U8*)""; |
| ec9af7d4 | 3681 | len = 0; |
| a0ed51b3 | 3682 | } |
| ec9af7d4 | 3683 | min = len + 1; |
| 128c9517 | 3684 | |
| ec9af7d4 | 3685 | SvUPGRADE(dest, SVt_PV); |
| 3b416f41 | 3686 | d = (U8*)SvGROW(dest, min); |
| ec9af7d4 NC |
3687 | (void)SvPOK_only(dest); |
| 3688 | ||
| 3689 | SETs(dest); | |
| 3690 | } | |
| 3691 | ||
| 3692 | /* Overloaded values may have toggled the UTF-8 flag on source, so we need | |
| 3693 | to check DO_UTF8 again here. */ | |
| 3694 | ||
| 3695 | if (DO_UTF8(source)) { | |
| 3696 | const U8 *const send = s + len; | |
| 3697 | U8 tmpbuf[UTF8_MAXBYTES_CASE+1]; | |
| 3698 | ||
| 3699 | while (s < send) { | |
| 3700 | const STRLEN u = UTF8SKIP(s); | |
| 3701 | STRLEN ulen; | |
| 3702 | const UV uv = toLOWER_utf8(s, tmpbuf, &ulen); | |
| 89ebb4a3 JH |
3703 | |
| 3704 | #define GREEK_CAPITAL_LETTER_SIGMA 0x03A3 /* Unicode U+03A3 */ | |
| ec9af7d4 NC |
3705 | if (uv == GREEK_CAPITAL_LETTER_SIGMA) { |
| 3706 | NOOP; | |
| 3707 | /* | |
| 3708 | * Now if the sigma is NOT followed by | |
| 3709 | * /$ignorable_sequence$cased_letter/; | |
| 3710 | * and it IS preceded by /$cased_letter$ignorable_sequence/; | |
| 3711 | * where $ignorable_sequence is [\x{2010}\x{AD}\p{Mn}]* | |
| 3712 | * and $cased_letter is [\p{Ll}\p{Lo}\p{Lt}] | |
| 3713 | * then it should be mapped to 0x03C2, | |
| 3714 | * (GREEK SMALL LETTER FINAL SIGMA), | |
| 3715 | * instead of staying 0x03A3. | |
| 3716 | * "should be": in other words, this is not implemented yet. | |
| 3717 | * See lib/unicore/SpecialCasing.txt. | |
| 3718 | */ | |
| 3719 | } | |
| 3720 | if (ulen > u && (SvLEN(dest) < (min += ulen - u))) { | |
| 3721 | /* If the eventually required minimum size outgrows | |
| 3722 | * the available space, we need to grow. */ | |
| 3723 | const UV o = d - (U8*)SvPVX_const(dest); | |
| 89ebb4a3 | 3724 | |
| ec9af7d4 NC |
3725 | /* If someone lowercases one million U+0130s we SvGROW() one |
| 3726 | * million times. Or we could try guessing how much to | |
| 3727 | allocate without allocating too much. Such is life. */ | |
| 3728 | SvGROW(dest, min); | |
| 3729 | d = (U8*)SvPVX(dest) + o; | |
| a0ed51b3 | 3730 | } |
| ec9af7d4 NC |
3731 | Copy(tmpbuf, d, ulen, U8); |
| 3732 | d += ulen; | |
| 3733 | s += u; | |
| a0ed51b3 | 3734 | } |
| ec9af7d4 NC |
3735 | SvUTF8_on(dest); |
| 3736 | *d = '\0'; | |
| 3737 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); | |
| 3738 | } else { | |
| 31351b04 | 3739 | if (len) { |
| ec9af7d4 | 3740 | const U8 *const send = s + len; |
| 2de3dbcc | 3741 | if (IN_LOCALE_RUNTIME) { |
| 31351b04 | 3742 | TAINT; |
| ec9af7d4 NC |
3743 | SvTAINTED_on(dest); |
| 3744 | for (; s < send; d++, s++) | |
| 3745 | *d = toLOWER_LC(*s); | |
| 31351b04 JS |
3746 | } |
| 3747 | else { | |
| ec9af7d4 NC |
3748 | for (; s < send; d++, s++) |
| 3749 | *d = toLOWER(*s); | |
| 31351b04 | 3750 | } |
| bbce6d69 | 3751 | } |
| ec9af7d4 NC |
3752 | if (source != dest) { |
| 3753 | *d = '\0'; | |
| 3754 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); | |
| 3755 | } | |
| 79072805 | 3756 | } |
| ec9af7d4 | 3757 | SvSETMAGIC(dest); |
| 79072805 LW |
3758 | RETURN; |
| 3759 | } | |
| 3760 | ||
| a0d0e21e | 3761 | PP(pp_quotemeta) |
| 79072805 | 3762 | { |
| 97aff369 | 3763 | dVAR; dSP; dTARGET; |
| 1b6737cc | 3764 | SV * const sv = TOPs; |
| a0d0e21e | 3765 | STRLEN len; |
| 0d46e09a | 3766 | register const char *s = SvPV_const(sv,len); |
| 79072805 | 3767 | |
| 7e2040f0 | 3768 | SvUTF8_off(TARG); /* decontaminate */ |
| a0d0e21e | 3769 | if (len) { |
| 1b6737cc | 3770 | register char *d; |
| 862a34c6 | 3771 | SvUPGRADE(TARG, SVt_PV); |
| c07a80fd | 3772 | SvGROW(TARG, (len * 2) + 1); |
| a0d0e21e | 3773 | d = SvPVX(TARG); |
| 7e2040f0 | 3774 | if (DO_UTF8(sv)) { |
| 0dd2cdef | 3775 | while (len) { |
| fd400ab9 | 3776 | if (UTF8_IS_CONTINUED(*s)) { |
| 0dd2cdef LW |
3777 | STRLEN ulen = UTF8SKIP(s); |
| 3778 | if (ulen > len) | |
| 3779 | ulen = len; | |
| 3780 | len -= ulen; | |
| 3781 | while (ulen--) | |
| 3782 | *d++ = *s++; | |
| 3783 | } | |
| 3784 | else { | |
| 3785 | if (!isALNUM(*s)) | |
| 3786 | *d++ = '\\'; | |
| 3787 | *d++ = *s++; | |
| 3788 | len--; | |
| 3789 | } | |
| 3790 | } | |
| 7e2040f0 | 3791 | SvUTF8_on(TARG); |
| 0dd2cdef LW |
3792 | } |
| 3793 | else { | |
| 3794 | while (len--) { | |
| 3795 | if (!isALNUM(*s)) | |
| 3796 | *d++ = '\\'; | |
| 3797 | *d++ = *s++; | |
| 3798 | } | |
| 79072805 | 3799 | } |
| a0d0e21e | 3800 | *d = '\0'; |
| 349d4f2f | 3801 | SvCUR_set(TARG, d - SvPVX_const(TARG)); |
| 3aa33fe5 | 3802 | (void)SvPOK_only_UTF8(TARG); |
| 79072805 | 3803 | } |
| a0d0e21e LW |
3804 | else |
| 3805 | sv_setpvn(TARG, s, len); | |
| 3806 | SETs(TARG); | |
| 31351b04 JS |
3807 | if (SvSMAGICAL(TARG)) |
| 3808 | mg_set(TARG); | |
| 79072805 LW |
3809 | RETURN; |
| 3810 | } | |
| 3811 | ||
| a0d0e21e | 3812 | /* Arrays. */ |
| 79072805 | 3813 | |
| a0d0e21e | 3814 | PP(pp_aslice) |
| 79072805 | 3815 | { |
| 97aff369 | 3816 | dVAR; dSP; dMARK; dORIGMARK; |
| 1b6737cc AL |
3817 | register AV* const av = (AV*)POPs; |
| 3818 | register const I32 lval = (PL_op->op_flags & OPf_MOD || LVRET); | |
| 79072805 | 3819 | |
| a0d0e21e | 3820 | if (SvTYPE(av) == SVt_PVAV) { |
| fc15ae8f | 3821 | const I32 arybase = CopARYBASE_get(PL_curcop); |
| 533c011a | 3822 | if (lval && PL_op->op_private & OPpLVAL_INTRO) { |
| 1b6737cc | 3823 | register SV **svp; |
| 748a9306 | 3824 | I32 max = -1; |
| 924508f0 | 3825 | for (svp = MARK + 1; svp <= SP; svp++) { |
| 1b6737cc | 3826 | const I32 elem = SvIVx(*svp); |
| 748a9306 LW |
3827 | if (elem > max) |
| 3828 | max = elem; | |
| 3829 | } | |
| 3830 | if (max > AvMAX(av)) | |
| 3831 | av_extend(av, max); | |
| 3832 | } | |
| a0d0e21e | 3833 | while (++MARK <= SP) { |
| 1b6737cc AL |
3834 | register SV **svp; |
| 3835 | I32 elem = SvIVx(*MARK); | |
| a0d0e21e | 3836 | |
| 748a9306 LW |
3837 | if (elem > 0) |
| 3838 | elem -= arybase; | |
| a0d0e21e LW |
3839 | svp = av_fetch(av, elem, lval); |
| 3840 | if (lval) { | |
| 3280af22 | 3841 | if (!svp || *svp == &PL_sv_undef) |
| cea2e8a9 | 3842 | DIE(aTHX_ PL_no_aelem, elem); |
| 533c011a | 3843 | if (PL_op->op_private & OPpLVAL_INTRO) |
| 161b7d16 | 3844 | save_aelem(av, elem, svp); |
| 79072805 | 3845 | } |
| 3280af22 | 3846 | *MARK = svp ? *svp : &PL_sv_undef; |
| 79072805 LW |
3847 | } |
| 3848 | } | |
| 748a9306 | 3849 | if (GIMME != G_ARRAY) { |
| a0d0e21e | 3850 | MARK = ORIGMARK; |
| 04ab2c87 | 3851 | *++MARK = SP > ORIGMARK ? *SP : &PL_sv_undef; |
| a0d0e21e LW |
3852 | SP = MARK; |
| 3853 | } | |
| 79072805 LW |
3854 | RETURN; |
| 3855 | } | |
| 3856 | ||
| 3857 | /* Associative arrays. */ | |
| 3858 | ||
| 3859 | PP(pp_each) | |
| 3860 | { | |
| 97aff369 | 3861 | dVAR; |
| 39644a26 | 3862 | dSP; |
| 1b6737cc | 3863 | HV * const hash = (HV*)POPs; |
| c07a80fd | 3864 | HE *entry; |
| f54cb97a | 3865 | const I32 gimme = GIMME_V; |
| 8ec5e241 | 3866 | |
| c07a80fd | 3867 | PUTBACK; |
| c750a3ec | 3868 | /* might clobber stack_sp */ |
| 6d822dc4 | 3869 | entry = hv_iternext(hash); |
| c07a80fd | 3870 | SPAGAIN; |
| 79072805 | 3871 | |
| 79072805 LW |
3872 | EXTEND(SP, 2); |
| 3873 | if (entry) { | |
| 1b6737cc | 3874 | SV* const sv = hv_iterkeysv(entry); |
| 574c8022 | 3875 | PUSHs(sv); /* won't clobber stack_sp */ |
| 54310121 | 3876 | if (gimme == G_ARRAY) { |
| 59af0135 | 3877 | SV *val; |
| c07a80fd | 3878 | PUTBACK; |
| c750a3ec | 3879 | /* might clobber stack_sp */ |
| 6d822dc4 | 3880 | val = hv_iterval(hash, entry); |
| c07a80fd | 3881 | SPAGAIN; |
| 59af0135 | 3882 | PUSHs(val); |
| 79072805 | 3883 | } |
| 79072805 | 3884 | } |
| 54310121 | 3885 | else if (gimme == G_SCALAR) |
| 79072805 LW |
3886 | RETPUSHUNDEF; |
| 3887 | ||
| 3888 | RETURN; | |
| 3889 | } | |
| 3890 | ||
| 79072805 LW |
3891 | PP(pp_delete) |
| 3892 | { | |
| 97aff369 | 3893 | dVAR; |
| 39644a26 | 3894 | dSP; |
| f54cb97a AL |
3895 | const I32 gimme = GIMME_V; |
| 3896 | const I32 discard = (gimme == G_VOID) ? G_DISCARD : 0; | |
| 5f05dabc | 3897 | |
| 533c011a | 3898 | if (PL_op->op_private & OPpSLICE) { |
| 5f05dabc | 3899 | dMARK; dORIGMARK; |
| 1b6737cc AL |
3900 | HV * const hv = (HV*)POPs; |
| 3901 | const U32 hvtype = SvTYPE(hv); | |
| 01020589 GS |
3902 | if (hvtype == SVt_PVHV) { /* hash element */ |
| 3903 | while (++MARK <= SP) { | |
| 1b6737cc | 3904 | SV * const sv = hv_delete_ent(hv, *MARK, discard, 0); |
| 01020589 GS |
3905 | *MARK = sv ? sv : &PL_sv_undef; |
| 3906 | } | |
| 5f05dabc | 3907 | } |
| 6d822dc4 MS |
3908 | else if (hvtype == SVt_PVAV) { /* array element */ |
| 3909 | if (PL_op->op_flags & OPf_SPECIAL) { | |
| 3910 | while (++MARK <= SP) { | |
| 1b6737cc | 3911 | SV * const sv = av_delete((AV*)hv, SvIV(*MARK), discard); |
| 6d822dc4 MS |
3912 | *MARK = sv ? sv : &PL_sv_undef; |
| 3913 | } | |
| 3914 | } | |
| 01020589 GS |
3915 | } |
| 3916 | else | |
| 3917 | DIE(aTHX_ "Not a HASH reference"); | |
| 54310121 | 3918 | if (discard) |
| 3919 | SP = ORIGMARK; | |
| 3920 | else if (gimme == G_SCALAR) { | |
| 5f05dabc | 3921 | MARK = ORIGMARK; |
| 9111c9c0 DM |
3922 | if (SP > MARK) |
| 3923 | *++MARK = *SP; | |
| 3924 | else | |
| 3925 | *++MARK = &PL_sv_undef; | |
| 5f05dabc | 3926 | SP = MARK; |
| 3927 | } | |
| 3928 | } | |
| 3929 | else { | |
| 3930 | SV *keysv = POPs; | |
| 1b6737cc AL |
3931 | HV * const hv = (HV*)POPs; |
| 3932 | SV *sv; | |
| 97fcbf96 MB |
3933 | if (SvTYPE(hv) == SVt_PVHV) |
| 3934 | sv = hv_delete_ent(hv, keysv, discard, 0); | |
| 01020589 GS |
3935 | else if (SvTYPE(hv) == SVt_PVAV) { |
| 3936 | if (PL_op->op_flags & OPf_SPECIAL) | |
| 3937 | sv = av_delete((AV*)hv, SvIV(keysv), discard); | |
| af288a60 HS |
3938 | else |
| 3939 | DIE(aTHX_ "panic: avhv_delete no longer supported"); | |
| 01020589 | 3940 | } |
| 97fcbf96 | 3941 | else |
| cea2e8a9 | 3942 | DIE(aTHX_ "Not a HASH reference"); |
| 5f05dabc | 3943 | if (!sv) |
| 3280af22 | 3944 | sv = &PL_sv_undef; |
| 54310121 | 3945 | if (!discard) |
| 3946 | PUSHs(sv); | |
| 79072805 | 3947 | } |
| 79072805 LW |
3948 | RETURN; |
| 3949 | } | |
| 3950 | ||
| a0d0e21e | 3951 | PP(pp_exists) |
| 79072805 | 3952 | { |
| 97aff369 | 3953 | dVAR; |
| 39644a26 | 3954 | dSP; |
| afebc493 GS |
3955 | SV *tmpsv; |
| 3956 | HV *hv; | |
| 3957 | ||
| 3958 | if (PL_op->op_private & OPpEXISTS_SUB) { | |
| 3959 | GV *gv; | |
| 0bd48802 | 3960 | SV * const sv = POPs; |
| f2c0649b | 3961 | CV * const cv = sv_2cv(sv, &hv, &gv, 0); |
| afebc493 GS |
3962 | if (cv) |
| 3963 | RETPUSHYES; | |
| 3964 | if (gv && isGV(gv) && GvCV(gv) && !GvCVGEN(gv)) | |
| 3965 | RETPUSHYES; | |
| 3966 | RETPUSHNO; | |
| 3967 | } | |
| 3968 | tmpsv = POPs; | |
| 3969 | hv = (HV*)POPs; | |
| c750a3ec | 3970 | if (SvTYPE(hv) == SVt_PVHV) { |
| ae77835f | 3971 | if (hv_exists_ent(hv, tmpsv, 0)) |
| c750a3ec | 3972 | RETPUSHYES; |
| ef54e1a4 JH |
3973 | } |
| 3974 | else if (SvTYPE(hv) == SVt_PVAV) { | |
| 01020589 GS |
3975 | if (PL_op->op_flags & OPf_SPECIAL) { /* array element */ |
| 3976 | if (av_exists((AV*)hv, SvIV(tmpsv))) | |
| 3977 | RETPUSHYES; | |
| 3978 | } | |
| ef54e1a4 JH |
3979 | } |
| 3980 | else { | |
| cea2e8a9 | 3981 | DIE(aTHX_ "Not a HASH reference"); |
| a0d0e21e | 3982 | } |
| a0d0e21e LW |
3983 | RETPUSHNO; |
| 3984 | } | |
| 79072805 | 3985 | |
| a0d0e21e LW |
3986 | PP(pp_hslice) |
| 3987 | { | |
| 97aff369 | 3988 | dVAR; dSP; dMARK; dORIGMARK; |
| 1b6737cc AL |
3989 | register HV * const hv = (HV*)POPs; |
| 3990 | register const I32 lval = (PL_op->op_flags & OPf_MOD || LVRET); | |
| 3991 | const bool localizing = PL_op->op_private & OPpLVAL_INTRO; | |
| eb85dfd3 | 3992 | bool other_magic = FALSE; |
| 79072805 | 3993 | |
| eb85dfd3 DM |
3994 | if (localizing) { |
| 3995 | MAGIC *mg; | |
| 3996 | HV *stash; | |
| 3997 | ||
| 3998 | other_magic = mg_find((SV*)hv, PERL_MAGIC_env) || | |
| 3999 | ((mg = mg_find((SV*)hv, PERL_MAGIC_tied)) | |
| 4000 | /* Try to preserve the existenceness of a tied hash | |
| 4001 | * element by using EXISTS and DELETE if possible. | |
| 4002 | * Fallback to FETCH and STORE otherwise */ | |
| 4003 | && (stash = SvSTASH(SvRV(SvTIED_obj((SV*)hv, mg)))) | |
| 4004 | && gv_fetchmethod_autoload(stash, "EXISTS", TRUE) | |
| 4005 | && gv_fetchmethod_autoload(stash, "DELETE", TRUE)); | |
| 4006 | } | |
| 4007 | ||
| 6d822dc4 | 4008 | while (++MARK <= SP) { |
| 1b6737cc | 4009 | SV * const keysv = *MARK; |
| 6d822dc4 MS |
4010 | SV **svp; |
| 4011 | HE *he; | |
| 4012 | bool preeminent = FALSE; | |
| 0ebe0038 | 4013 | |
| 6d822dc4 MS |
4014 | if (localizing) { |
| 4015 | preeminent = SvRMAGICAL(hv) && !other_magic ? 1 : | |
| 4016 | hv_exists_ent(hv, keysv, 0); | |
| 4017 | } | |
| eb85dfd3 | 4018 | |
| 6d822dc4 MS |
4019 | he = hv_fetch_ent(hv, keysv, lval, 0); |
| 4020 | svp = he ? &HeVAL(he) : 0; | |
| eb85dfd3 | 4021 | |
| 6d822dc4 MS |
4022 | if (lval) { |
| 4023 | if (!svp || *svp == &PL_sv_undef) { | |
| ce5030a2 | 4024 | DIE(aTHX_ PL_no_helem_sv, keysv); |
| 6d822dc4 MS |
4025 | } |
| 4026 | if (localizing) { | |
| 7a2e501a RD |
4027 | if (HvNAME_get(hv) && isGV(*svp)) |
| 4028 | save_gp((GV*)*svp, !(PL_op->op_flags & OPf_SPECIAL)); | |
| 4029 | else { | |
| 4030 | if (preeminent) | |
| 4031 | save_helem(hv, keysv, svp); | |
| 4032 | else { | |
| 4033 | STRLEN keylen; | |
| d4c19fe8 | 4034 | const char * const key = SvPV_const(keysv, keylen); |
| 919acde0 NC |
4035 | SAVEDELETE(hv, savepvn(key,keylen), |
| 4036 | SvUTF8(keysv) ? -keylen : keylen); | |
| 7a2e501a RD |
4037 | } |
| 4038 | } | |
| 6d822dc4 MS |
4039 | } |
| 4040 | } | |
| 4041 | *MARK = svp ? *svp : &PL_sv_undef; | |
| 79072805 | 4042 | } |
| a0d0e21e LW |
4043 | if (GIMME != G_ARRAY) { |
| 4044 | MARK = ORIGMARK; | |
| 04ab2c87 | 4045 | *++MARK = SP > ORIGMARK ? *SP : &PL_sv_undef; |
| a0d0e21e | 4046 | SP = MARK; |
| 79072805 | 4047 | } |
| a0d0e21e LW |
4048 | RETURN; |
| 4049 | } | |
| 4050 | ||
| 4051 | /* List operators. */ | |
| 4052 | ||
| 4053 | PP(pp_list) | |
| 4054 | { | |
| 97aff369 | 4055 | dVAR; dSP; dMARK; |
| a0d0e21e LW |
4056 | if (GIMME != G_ARRAY) { |
| 4057 | if (++MARK <= SP) | |
| 4058 | *MARK = *SP; /* unwanted list, return last item */ | |
| 8990e307 | 4059 | else |
| 3280af22 | 4060 | *MARK = &PL_sv_undef; |
| a0d0e21e | 4061 | SP = MARK; |
| 79072805 | 4062 | } |
| a0d0e21e | 4063 | RETURN; |
| 79072805 LW |
4064 | } |
| 4065 | ||
| a0d0e21e | 4066 | PP(pp_lslice) |
| 79072805 | 4067 | { |
| 97aff369 | 4068 | dVAR; |
| 39644a26 | 4069 | dSP; |
| 1b6737cc AL |
4070 | SV ** const lastrelem = PL_stack_sp; |
| 4071 | SV ** const lastlelem = PL_stack_base + POPMARK; | |
| 4072 | SV ** const firstlelem = PL_stack_base + POPMARK + 1; | |
| 4073 | register SV ** const firstrelem = lastlelem + 1; | |
| fc15ae8f | 4074 | const I32 arybase = CopARYBASE_get(PL_curcop); |
| 1b6737cc AL |
4075 | I32 is_something_there = PL_op->op_flags & OPf_MOD; |
| 4076 | ||
| 4077 | register const I32 max = lastrelem - lastlelem; | |
| a0d0e21e | 4078 | register SV **lelem; |
| a0d0e21e LW |
4079 | |
| 4080 | if (GIMME != G_ARRAY) { | |
| 1b6737cc | 4081 | I32 ix = SvIVx(*lastlelem); |
| 748a9306 LW |
4082 | if (ix < 0) |
| 4083 | ix += max; | |
| 4084 | else | |
| 4085 | ix -= arybase; | |
| a0d0e21e | 4086 | if (ix < 0 || ix >= max) |
| 3280af22 | 4087 | *firstlelem = &PL_sv_undef; |
| a0d0e21e LW |
4088 | else |
| 4089 | *firstlelem = firstrelem[ix]; | |
| 4090 | SP = firstlelem; | |
| 4091 | RETURN; | |
| 4092 | } | |
| 4093 | ||
| 4094 | if (max == 0) { | |
| 4095 | SP = firstlelem - 1; | |
| 4096 | RETURN; | |
| 4097 | } | |
| 4098 | ||
| 4099 | for (lelem = firstlelem; lelem <= lastlelem; lelem++) { | |
| 1b6737cc | 4100 | I32 ix = SvIVx(*lelem); |
| c73bf8e3 | 4101 | if (ix < 0) |
| a0d0e21e | 4102 | ix += max; |
| b13b2135 | 4103 | else |
| 748a9306 | 4104 | ix -= arybase; |
| c73bf8e3 HS |
4105 | if (ix < 0 || ix >= max) |
| 4106 | *lelem = &PL_sv_undef; | |
| 4107 | else { | |
| 4108 | is_something_there = TRUE; | |
| 4109 | if (!(*lelem = firstrelem[ix])) | |
| 3280af22 | 4110 | *lelem = &PL_sv_undef; |
| 748a9306 | 4111 | } |
| 79072805 | 4112 | } |
| 4633a7c4 LW |
4113 | if (is_something_there) |
| 4114 | SP = lastlelem; | |
| 4115 | else | |
| 4116 | SP = firstlelem - 1; | |
| 79072805 LW |
4117 | RETURN; |
| 4118 | } | |
| 4119 | ||
| a0d0e21e LW |
4120 | PP(pp_anonlist) |
| 4121 | { | |
| 97aff369 | 4122 | dVAR; dSP; dMARK; dORIGMARK; |
| 1b6737cc AL |
4123 | const I32 items = SP - MARK; |
| 4124 | SV * const av = sv_2mortal((SV*)av_make(items, MARK+1)); | |
| 44a8e56a | 4125 | SP = ORIGMARK; /* av_make() might realloc stack_sp */ |
| 4126 | XPUSHs(av); | |
| a0d0e21e LW |
4127 | RETURN; |
| 4128 | } | |
| 4129 | ||
| 4130 | PP(pp_anonhash) | |
| 79072805 | 4131 | { |
| 97aff369 | 4132 | dVAR; dSP; dMARK; dORIGMARK; |
| 1b6737cc | 4133 | HV* const hv = (HV*)sv_2mortal((SV*)newHV()); |
| a0d0e21e LW |
4134 | |
| 4135 | while (MARK < SP) { | |
| 1b6737cc | 4136 | SV * const key = *++MARK; |
| 561b68a9 | 4137 | SV * const val = newSV(0); |
| a0d0e21e LW |
4138 | if (MARK < SP) |
| 4139 | sv_setsv(val, *++MARK); | |
| e476b1b5 | 4140 | else if (ckWARN(WARN_MISC)) |
| 9014280d | 4141 | Perl_warner(aTHX_ packWARN(WARN_MISC), "Odd number of elements in anonymous hash"); |
| f12c7020 | 4142 | (void)hv_store_ent(hv,key,val,0); |
| 79072805 | 4143 | } |
| a0d0e21e LW |
4144 | SP = ORIGMARK; |
| 4145 | XPUSHs((SV*)hv); | |
| 79072805 LW |
4146 | RETURN; |
| 4147 | } | |
| 4148 | ||
| a0d0e21e | 4149 | PP(pp_splice) |
| 79072805 | 4150 | { |
| 27da23d5 | 4151 | dVAR; dSP; dMARK; dORIGMARK; |
| a0d0e21e LW |
4152 | register AV *ary = (AV*)*++MARK; |
| 4153 | register SV **src; | |
| 4154 | register SV **dst; | |
| 4155 | register I32 i; | |
| 4156 | register I32 offset; | |
| 4157 | register I32 length; | |
| 4158 | I32 newlen; | |
| 4159 | I32 after; | |
| 4160 | I32 diff; | |
| 1b6737cc | 4161 | const MAGIC * const mg = SvTIED_mg((SV*)ary, PERL_MAGIC_tied); |
| 93965878 | 4162 | |
| 1b6737cc | 4163 | if (mg) { |
| 33c27489 | 4164 | *MARK-- = SvTIED_obj((SV*)ary, mg); |
| 93965878 | 4165 | PUSHMARK(MARK); |
| 8ec5e241 | 4166 | PUTBACK; |
| a60c0954 | 4167 | ENTER; |
| 864dbfa3 | 4168 | call_method("SPLICE",GIMME_V); |
| a60c0954 | 4169 | LEAVE; |
| 93965878 NIS |
4170 | SPAGAIN; |
| 4171 | RETURN; | |
| 4172 | } | |
| 79072805 | 4173 | |
| a0d0e21e | 4174 | SP++; |
| 79072805 | 4175 | |
| a0d0e21e | 4176 | if (++MARK < SP) { |
| 84902520 | 4177 | offset = i = SvIVx(*MARK); |
| a0d0e21e | 4178 | if (offset < 0) |
| 93965878 | 4179 | offset += AvFILLp(ary) + 1; |
| a0d0e21e | 4180 | else |
| fc15ae8f | 4181 | offset -= CopARYBASE_get(PL_curcop); |
| 84902520 | 4182 | if (offset < 0) |
| cea2e8a9 | 4183 | DIE(aTHX_ PL_no_aelem, i); |
| a0d0e21e LW |
4184 | if (++MARK < SP) { |
| 4185 | length = SvIVx(*MARK++); | |
| 48cdf507 GA |
4186 | if (length < 0) { |
| 4187 | length += AvFILLp(ary) - offset + 1; | |
| 4188 | if (length < 0) | |
| 4189 | length = 0; | |
| 4190 | } | |
| 79072805 LW |
4191 | } |
| 4192 | else | |
| a0d0e21e | 4193 | length = AvMAX(ary) + 1; /* close enough to infinity */ |
| 79072805 | 4194 | } |
| a0d0e21e LW |
4195 | else { |
| 4196 | offset = 0; | |
| 4197 | length = AvMAX(ary) + 1; | |
| 4198 | } | |
| 8cbc2e3b JH |
4199 | if (offset > AvFILLp(ary) + 1) { |
| 4200 | if (ckWARN(WARN_MISC)) | |
| 9014280d | 4201 | Perl_warner(aTHX_ packWARN(WARN_MISC), "splice() offset past end of array" ); |
| 93965878 | 4202 | offset = AvFILLp(ary) + 1; |
| 8cbc2e3b | 4203 | } |
| 93965878 | 4204 | after = AvFILLp(ary) + 1 - (offset + length); |
| a0d0e21e LW |
4205 | if (after < 0) { /* not that much array */ |
| 4206 | length += after; /* offset+length now in array */ | |
| 4207 | after = 0; | |
| 4208 | if (!AvALLOC(ary)) | |
| 4209 | av_extend(ary, 0); | |
| 4210 | } | |
| 4211 | ||
| 4212 | /* At this point, MARK .. SP-1 is our new LIST */ | |
| 4213 | ||
| 4214 | newlen = SP - MARK; | |
| 4215 | diff = newlen - length; | |
| 13d7cbc1 GS |
4216 | if (newlen && !AvREAL(ary) && AvREIFY(ary)) |
| 4217 | av_reify(ary); | |
| a0d0e21e | 4218 | |
| 50528de0 WL |
4219 | /* make new elements SVs now: avoid problems if they're from the array */ |
| 4220 | for (dst = MARK, i = newlen; i; i--) { | |
| 1b6737cc | 4221 | SV * const h = *dst; |
| f2b990bf | 4222 | *dst++ = newSVsv(h); |
| 50528de0 WL |
4223 | } |
| 4224 | ||
| a0d0e21e | 4225 | if (diff < 0) { /* shrinking the area */ |
| 95b63a38 | 4226 | SV **tmparyval = NULL; |
| a0d0e21e | 4227 | if (newlen) { |
| a02a5408 | 4228 | Newx(tmparyval, newlen, SV*); /* so remember insertion */ |
| a0d0e21e | 4229 | Copy(MARK, tmparyval, newlen, SV*); |
| 79072805 | 4230 | } |
| a0d0e21e LW |
4231 | |
| 4232 | MARK = ORIGMARK + 1; | |
| 4233 | if (GIMME == G_ARRAY) { /* copy return vals to stack */ | |
| 4234 | MEXTEND(MARK, length); | |
| 4235 | Copy(AvARRAY(ary)+offset, MARK, length, SV*); | |
| 4236 | if (AvREAL(ary)) { | |
| bbce6d69 | 4237 | EXTEND_MORTAL(length); |
| 36477c24 | 4238 | for (i = length, dst = MARK; i; i--) { |
| d689ffdd | 4239 | sv_2mortal(*dst); /* free them eventualy */ |
| 36477c24 | 4240 | dst++; |
| 4241 | } | |
| a0d0e21e LW |
4242 | } |
| 4243 | MARK += length - 1; | |
| 79072805 | 4244 | } |
| a0d0e21e LW |
4245 | else { |
| 4246 | *MARK = AvARRAY(ary)[offset+length-1]; | |
| 4247 | if (AvREAL(ary)) { | |
| d689ffdd | 4248 | sv_2mortal(*MARK); |
| a0d0e21e LW |
4249 | for (i = length - 1, dst = &AvARRAY(ary)[offset]; i > 0; i--) |
| 4250 | SvREFCNT_dec(*dst++); /* free them now */ | |
| 79072805 | 4251 | } |
| a0d0e21e | 4252 | } |
| 93965878 | 4253 | AvFILLp(ary) += diff; |
| a0d0e21e LW |
4254 | |
| 4255 | /* pull up or down? */ | |
| 4256 | ||
| 4257 | if (offset < after) { /* easier to pull up */ | |
| 4258 | if (offset) { /* esp. if nothing to pull */ | |
| 4259 | src = &AvARRAY(ary)[offset-1]; | |
| 4260 | dst = src - diff; /* diff is negative */ | |
| 4261 | for (i = offset; i > 0; i--) /* can't trust Copy */ | |
| 4262 | *dst-- = *src--; | |
| 79072805 | 4263 | } |
| a0d0e21e | 4264 | dst = AvARRAY(ary); |
| f880fe2f | 4265 | SvPV_set(ary, (char*)(AvARRAY(ary) - diff)); /* diff is negative */ |
| a0d0e21e LW |
4266 | AvMAX(ary) += diff; |
| 4267 | } | |
| 4268 | else { | |
| 4269 | if (after) { /* anything to pull down? */ | |
| 4270 | src = AvARRAY(ary) + offset + length; | |
| 4271 | dst = src + diff; /* diff is negative */ | |
| 4272 | Move(src, dst, after, SV*); | |
| 79072805 | 4273 | } |
| 93965878 | 4274 | dst = &AvARRAY(ary)[AvFILLp(ary)+1]; |
| a0d0e21e LW |
4275 | /* avoid later double free */ |
| 4276 | } | |
| 4277 | i = -diff; | |
| 4278 | while (i) | |
| 3280af22 | 4279 | dst[--i] = &PL_sv_undef; |
| a0d0e21e LW |
4280 | |
| 4281 | if (newlen) { | |
| 50528de0 | 4282 | Copy( tmparyval, AvARRAY(ary) + offset, newlen, SV* ); |
| a0d0e21e LW |
4283 | Safefree(tmparyval); |
| 4284 | } | |
| 4285 | } | |
| 4286 | else { /* no, expanding (or same) */ | |
| d3961450 | 4287 | SV** tmparyval = NULL; |
| a0d0e21e | 4288 | if (length) { |
| a02a5408 | 4289 | Newx(tmparyval, length, SV*); /* so remember deletion */ |
| a0d0e21e LW |
4290 | Copy(AvARRAY(ary)+offset, tmparyval, length, SV*); |
| 4291 | } | |
| 4292 | ||
| 4293 | if (diff > 0) { /* expanding */ | |
| a0d0e21e | 4294 | /* push up or down? */ |
| a0d0e21e LW |
4295 | if (offset < after && diff <= AvARRAY(ary) - AvALLOC(ary)) { |
| 4296 | if (offset) { | |
| 4297 | src = AvARRAY(ary); | |
| 4298 | dst = src - diff; | |
| 4299 | Move(src, dst, offset, SV*); | |
| 79072805 | 4300 | } |
| f880fe2f | 4301 | SvPV_set(ary, (char*)(AvARRAY(ary) - diff));/* diff is positive */ |
| a0d0e21e | 4302 | AvMAX(ary) += diff; |
| 93965878 | 4303 | AvFILLp(ary) += diff; |
| 79072805 LW |
4304 | } |
| 4305 | else { | |
| 93965878 NIS |
4306 | if (AvFILLp(ary) + diff >= AvMAX(ary)) /* oh, well */ |
| 4307 | av_extend(ary, AvFILLp(ary) + diff); | |
| 4308 | AvFILLp(ary) += diff; | |
| a0d0e21e LW |
4309 | |
| 4310 | if (after) { | |
| 93965878 | 4311 | dst = AvARRAY(ary) + AvFILLp(ary); |
| a0d0e21e LW |
4312 | src = dst - diff; |
| 4313 | for (i = after; i; i--) { | |
| 4314 | *dst-- = *src--; | |
| 4315 | } | |
| 79072805 LW |
4316 | } |
| 4317 | } | |
| a0d0e21e LW |
4318 | } |
| 4319 | ||
| 50528de0 WL |
4320 | if (newlen) { |
| 4321 | Copy( MARK, AvARRAY(ary) + offset, newlen, SV* ); | |
| a0d0e21e | 4322 | } |
| 50528de0 | 4323 | |
| a0d0e21e LW |
4324 | MARK = ORIGMARK + 1; |
| 4325 | if (GIMME == G_ARRAY) { /* copy return vals to stack */ | |
| 4326 | if (length) { | |
| 4327 | Copy(tmparyval, MARK, length, SV*); | |
| 4328 | if (AvREAL(ary)) { | |
| bbce6d69 | 4329 | EXTEND_MORTAL(length); |
| 36477c24 | 4330 | for (i = length, dst = MARK; i; i--) { |
| d689ffdd | 4331 | sv_2mortal(*dst); /* free them eventualy */ |
| 36477c24 | 4332 | dst++; |
| 4333 | } | |
| 79072805 LW |
4334 | } |
| 4335 | } | |
| a0d0e21e LW |
4336 | MARK += length - 1; |
| 4337 | } | |
| 4338 | else if (length--) { | |
| 4339 | *MARK = tmparyval[length]; | |
| 4340 | if (AvREAL(ary)) { | |
| d689ffdd | 4341 | sv_2mortal(*MARK); |
| a0d0e21e LW |
4342 | while (length-- > 0) |
| 4343 | SvREFCNT_dec(tmparyval[length]); | |
| 79072805 | 4344 | } |
| 79072805 | 4345 | } |
| a0d0e21e | 4346 | else |
| 3280af22 | 4347 | *MARK = &PL_sv_undef; |
| d3961450 | 4348 | Safefree(tmparyval); |
| 79072805 | 4349 | } |
| a0d0e21e | 4350 | SP = MARK; |
| 79072805 LW |
4351 | RETURN; |
| 4352 | } | |
| 4353 | ||
| a0d0e21e | 4354 | PP(pp_push) |
| 79072805 | 4355 | { |
| 27da23d5 | 4356 | dVAR; dSP; dMARK; dORIGMARK; dTARGET; |
| 1eced8f8 | 4357 | register AV * const ary = (AV*)*++MARK; |
| 1b6737cc | 4358 | const MAGIC * const mg = SvTIED_mg((SV*)ary, PERL_MAGIC_tied); |
| 79072805 | 4359 | |
| 1b6737cc | 4360 | if (mg) { |
| 33c27489 | 4361 | *MARK-- = SvTIED_obj((SV*)ary, mg); |
| 93965878 NIS |
4362 | PUSHMARK(MARK); |
| 4363 | PUTBACK; | |
| a60c0954 | 4364 | ENTER; |
| 864dbfa3 | 4365 | call_method("PUSH",G_SCALAR|G_DISCARD); |
| a60c0954 | 4366 | LEAVE; |
| 93965878 | 4367 | SPAGAIN; |
| 0a75904b TP |
4368 | SP = ORIGMARK; |
| 4369 | PUSHi( AvFILL(ary) + 1 ); | |
| 93965878 | 4370 | } |
| a60c0954 | 4371 | else { |
| a60c0954 | 4372 | for (++MARK; MARK <= SP; MARK++) { |
| 561b68a9 | 4373 | SV * const sv = newSV(0); |
| a60c0954 NIS |
4374 | if (*MARK) |
| 4375 | sv_setsv(sv, *MARK); | |
| 0a75904b | 4376 | av_store(ary, AvFILLp(ary)+1, sv); |
| a60c0954 | 4377 | } |
| 0a75904b TP |
4378 | SP = ORIGMARK; |
| 4379 | PUSHi( AvFILLp(ary) + 1 ); | |
| 79072805 | 4380 | } |
| 79072805 LW |
4381 | RETURN; |
| 4382 | } | |
| 4383 | ||
| a0d0e21e | 4384 | PP(pp_shift) |
| 79072805 | 4385 | { |
| 97aff369 | 4386 | dVAR; |
| 39644a26 | 4387 | dSP; |
| 1b6737cc | 4388 | AV * const av = (AV*)POPs; |
| 789b4bc9 | 4389 | SV * const sv = PL_op->op_type == OP_SHIFT ? av_shift(av) : av_pop(av); |
| 79072805 | 4390 | EXTEND(SP, 1); |
| c2b4a044 | 4391 | assert (sv); |
| d689ffdd | 4392 | if (AvREAL(av)) |
| a0d0e21e LW |
4393 | (void)sv_2mortal(sv); |
| 4394 | PUSHs(sv); | |
| 79072805 | 4395 | RETURN; |
| 79072805 LW |
4396 | } |
| 4397 | ||
| a0d0e21e | 4398 | PP(pp_unshift) |
| 79072805 | 4399 | { |
| 27da23d5 | 4400 | dVAR; dSP; dMARK; dORIGMARK; dTARGET; |
| a0d0e21e | 4401 | register AV *ary = (AV*)*++MARK; |
| 1b6737cc | 4402 | const MAGIC * const mg = SvTIED_mg((SV*)ary, PERL_MAGIC_tied); |
| 93965878 | 4403 | |
| 1b6737cc | 4404 | if (mg) { |
| 33c27489 | 4405 | *MARK-- = SvTIED_obj((SV*)ary, mg); |
| 7fd66d9d | 4406 | PUSHMARK(MARK); |
| 93965878 | 4407 | PUTBACK; |
| a60c0954 | 4408 | ENTER; |
| 864dbfa3 | 4409 | call_method("UNSHIFT",G_SCALAR|G_DISCARD); |
| a60c0954 | 4410 | LEAVE; |
| 93965878 | 4411 | SPAGAIN; |
| 93965878 | 4412 | } |
| a60c0954 | 4413 | else { |
| 1b6737cc | 4414 | register I32 i = 0; |
| a60c0954 NIS |
4415 | av_unshift(ary, SP - MARK); |
| 4416 | while (MARK < SP) { | |
| 1b6737cc | 4417 | SV * const sv = newSVsv(*++MARK); |
| a60c0954 NIS |
4418 | (void)av_store(ary, i++, sv); |
| 4419 | } | |
| 79072805 | 4420 | } |
| a0d0e21e LW |
4421 | SP = ORIGMARK; |
| 4422 | PUSHi( AvFILL(ary) + 1 ); | |
| 79072805 | 4423 | RETURN; |
| 79072805 LW |
4424 | } |
| 4425 | ||
| a0d0e21e | 4426 | PP(pp_reverse) |
| 79072805 | 4427 | { |
| 97aff369 | 4428 | dVAR; dSP; dMARK; |
| 1b6737cc | 4429 | SV ** const oldsp = SP; |
| 79072805 | 4430 | |
| a0d0e21e LW |
4431 | if (GIMME == G_ARRAY) { |
| 4432 | MARK++; | |
| 4433 | while (MARK < SP) { | |
| 1b6737cc | 4434 | register SV * const tmp = *MARK; |
| a0d0e21e LW |
4435 | *MARK++ = *SP; |
| 4436 | *SP-- = tmp; | |
| 4437 | } | |
| dd58a1ab | 4438 | /* safe as long as stack cannot get extended in the above */ |
| a0d0e21e | 4439 | SP = oldsp; |
| 79072805 LW |
4440 | } |
| 4441 | else { | |
| a0d0e21e LW |
4442 | register char *up; |
| 4443 | register char *down; | |
| 4444 | register I32 tmp; | |
| 4445 | dTARGET; | |
| 4446 | STRLEN len; | |
| 9f7d9405 | 4447 | PADOFFSET padoff_du; |
| 79072805 | 4448 | |
| 7e2040f0 | 4449 | SvUTF8_off(TARG); /* decontaminate */ |
| a0d0e21e | 4450 | if (SP - MARK > 1) |
| 3280af22 | 4451 | do_join(TARG, &PL_sv_no, MARK, SP); |
| a0d0e21e | 4452 | else |
| e1f795dc RGS |
4453 | sv_setsv(TARG, (SP > MARK) |
| 4454 | ? *SP | |
| 29289021 | 4455 | : (padoff_du = find_rundefsvoffset(), |
| 00b1698f NC |
4456 | (padoff_du == NOT_IN_PAD |
| 4457 | || PAD_COMPNAME_FLAGS_isOUR(padoff_du)) | |
| e1f795dc | 4458 | ? DEFSV : PAD_SVl(padoff_du))); |
| a0d0e21e LW |
4459 | up = SvPV_force(TARG, len); |
| 4460 | if (len > 1) { | |
| 7e2040f0 | 4461 | if (DO_UTF8(TARG)) { /* first reverse each character */ |
| dfe13c55 | 4462 | U8* s = (U8*)SvPVX(TARG); |
| 349d4f2f | 4463 | const U8* send = (U8*)(s + len); |
| a0ed51b3 | 4464 | while (s < send) { |
| d742c382 | 4465 | if (UTF8_IS_INVARIANT(*s)) { |
| a0ed51b3 LW |
4466 | s++; |
| 4467 | continue; | |
| 4468 | } | |
| 4469 | else { | |
| 9041c2e3 | 4470 | if (!utf8_to_uvchr(s, 0)) |
| a0dbb045 | 4471 | break; |
| dfe13c55 | 4472 | up = (char*)s; |
| a0ed51b3 | 4473 | s += UTF8SKIP(s); |
| dfe13c55 | 4474 | down = (char*)(s - 1); |
| a0dbb045 | 4475 | /* reverse this character */ |
| a0ed51b3 LW |
4476 | while (down > up) { |
| 4477 | tmp = *up; | |
| 4478 | *up++ = *down; | |
| eb160463 | 4479 | *down-- = (char)tmp; |
| a0ed51b3 LW |
4480 | } |
| 4481 | } | |
| 4482 | } | |
| 4483 | up = SvPVX(TARG); | |
| 4484 | } | |
| a0d0e21e LW |
4485 | down = SvPVX(TARG) + len - 1; |
| 4486 | while (down > up) { | |
| 4487 | tmp = *up; | |
| 4488 | *up++ = *down; | |
| eb160463 | 4489 | *down-- = (char)tmp; |
| a0d0e21e | 4490 | } |
| 3aa33fe5 | 4491 | (void)SvPOK_only_UTF8(TARG); |
| 79072805 | 4492 | } |
| a0d0e21e LW |
4493 | SP = MARK + 1; |
| 4494 | SETTARG; | |
| 79072805 | 4495 | } |
| a0d0e21e | 4496 | RETURN; |
| 79072805 LW |
4497 | } |
| 4498 | ||
| a0d0e21e | 4499 | PP(pp_split) |
| 79072805 | 4500 | { |
| 27da23d5 | 4501 | dVAR; dSP; dTARG; |
| a0d0e21e | 4502 | AV *ary; |
| 467f0320 | 4503 | register IV limit = POPi; /* note, negative is forever */ |
| 1b6737cc | 4504 | SV * const sv = POPs; |
| a0d0e21e | 4505 | STRLEN len; |
| 727b7506 | 4506 | register const char *s = SvPV_const(sv, len); |
| 1b6737cc | 4507 | const bool do_utf8 = DO_UTF8(sv); |
| 727b7506 | 4508 | const char *strend = s + len; |
| 44a8e56a | 4509 | register PMOP *pm; |
| d9f97599 | 4510 | register REGEXP *rx; |
| a0d0e21e | 4511 | register SV *dstr; |
| 727b7506 | 4512 | register const char *m; |
| a0d0e21e | 4513 | I32 iters = 0; |
| bb7a0f54 | 4514 | const STRLEN slen = do_utf8 ? utf8_length((U8*)s, (U8*)strend) : (STRLEN)(strend - s); |
| 792b2c16 | 4515 | I32 maxiters = slen + 10; |
| 727b7506 | 4516 | const char *orig; |
| 1b6737cc | 4517 | const I32 origlimit = limit; |
| a0d0e21e LW |
4518 | I32 realarray = 0; |
| 4519 | I32 base; | |
| f54cb97a AL |
4520 | const I32 gimme = GIMME_V; |
| 4521 | const I32 oldsave = PL_savestack_ix; | |
| 8ec5e241 | 4522 | I32 make_mortal = 1; |
| 7fba1cd6 | 4523 | bool multiline = 0; |
| b37c2d43 | 4524 | MAGIC *mg = NULL; |
| 79072805 | 4525 | |
| 44a8e56a | 4526 | #ifdef DEBUGGING |
| 4527 | Copy(&LvTARGOFF(POPs), &pm, 1, PMOP*); | |
| 4528 | #else | |
| 4529 | pm = (PMOP*)POPs; | |
| 4530 | #endif | |
| a0d0e21e | 4531 | if (!pm || !s) |
| 2269b42e | 4532 | DIE(aTHX_ "panic: pp_split"); |
| aaa362c4 | 4533 | rx = PM_GETRE(pm); |
| bbce6d69 | 4534 | |
| 4535 | TAINT_IF((pm->op_pmflags & PMf_LOCALE) && | |
| 4536 | (pm->op_pmflags & (PMf_WHITE | PMf_SKIPWHITE))); | |
| 4537 | ||
| a30b2f1f | 4538 | RX_MATCH_UTF8_set(rx, do_utf8); |
| d9f424b2 | 4539 | |
| 971a9dd3 GS |
4540 | if (pm->op_pmreplroot) { |
| 4541 | #ifdef USE_ITHREADS | |
| dd2155a4 | 4542 | ary = GvAVn((GV*)PAD_SVl(INT2PTR(PADOFFSET, pm->op_pmreplroot))); |
| 971a9dd3 | 4543 | #else |
| a0d0e21e | 4544 | ary = GvAVn((GV*)pm->op_pmreplroot); |
| 971a9dd3 GS |
4545 | #endif |
| 4546 | } | |
| a0d0e21e | 4547 | else if (gimme != G_ARRAY) |
| 3280af22 | 4548 | ary = GvAVn(PL_defgv); |
| 79072805 | 4549 | else |
| 7d49f689 | 4550 | ary = NULL; |
| a0d0e21e LW |
4551 | if (ary && (gimme != G_ARRAY || (pm->op_pmflags & PMf_ONCE))) { |
| 4552 | realarray = 1; | |
| 8ec5e241 | 4553 | PUTBACK; |
| a0d0e21e LW |
4554 | av_extend(ary,0); |
| 4555 | av_clear(ary); | |
| 8ec5e241 | 4556 | SPAGAIN; |
| 14befaf4 | 4557 | if ((mg = SvTIED_mg((SV*)ary, PERL_MAGIC_tied))) { |
| 8ec5e241 | 4558 | PUSHMARK(SP); |
| 33c27489 | 4559 | XPUSHs(SvTIED_obj((SV*)ary, mg)); |
| 8ec5e241 NIS |
4560 | } |
| 4561 | else { | |
| 1c0b011c | 4562 | if (!AvREAL(ary)) { |
| 1b6737cc | 4563 | I32 i; |
| 1c0b011c | 4564 | AvREAL_on(ary); |
| abff13bb | 4565 | AvREIFY_off(ary); |
| 1c0b011c | 4566 | for (i = AvFILLp(ary); i >= 0; i--) |
| 3280af22 | 4567 | AvARRAY(ary)[i] = &PL_sv_undef; /* don't free mere refs */ |
| 1c0b011c NIS |
4568 | } |
| 4569 | /* temporarily switch stacks */ | |
| 8b7059b1 | 4570 | SAVESWITCHSTACK(PL_curstack, ary); |
| 8ec5e241 | 4571 | make_mortal = 0; |
| 1c0b011c | 4572 | } |
| 79072805 | 4573 | } |
| 3280af22 | 4574 | base = SP - PL_stack_base; |
| a0d0e21e LW |
4575 | orig = s; |
| 4576 | if (pm->op_pmflags & PMf_SKIPWHITE) { | |
| bbce6d69 | 4577 | if (pm->op_pmflags & PMf_LOCALE) { |
| 4578 | while (isSPACE_LC(*s)) | |
| 4579 | s++; | |
| 4580 | } | |
| 4581 | else { | |
| 4582 | while (isSPACE(*s)) | |
| 4583 | s++; | |
| 4584 | } | |
| a0d0e21e | 4585 | } |
| 7fba1cd6 RD |
4586 | if (pm->op_pmflags & PMf_MULTILINE) { |
| 4587 | multiline = 1; | |
| c07a80fd | 4588 | } |
| 4589 | ||
| a0d0e21e LW |
4590 | if (!limit) |
| 4591 | limit = maxiters + 2; | |
| 4592 | if (pm->op_pmflags & PMf_WHITE) { | |
| 4593 | while (--limit) { | |
| bbce6d69 | 4594 | m = s; |
| 4595 | while (m < strend && | |
| 4596 | !((pm->op_pmflags & PMf_LOCALE) | |
| 4597 | ? isSPACE_LC(*m) : isSPACE(*m))) | |
| 4598 | ++m; | |
| a0d0e21e LW |
4599 | if (m >= strend) |
| 4600 | break; | |
| bbce6d69 | 4601 | |
| f2b990bf | 4602 | dstr = newSVpvn(s, m-s); |
| 8ec5e241 | 4603 | if (make_mortal) |
| a0d0e21e | 4604 | sv_2mortal(dstr); |
| 792b2c16 | 4605 | if (do_utf8) |
| 28cb3359 | 4606 | (void)SvUTF8_on(dstr); |
| a0d0e21e | 4607 | XPUSHs(dstr); |
| bbce6d69 | 4608 | |
| 4609 | s = m + 1; | |
| 4610 | while (s < strend && | |
| 4611 | ((pm->op_pmflags & PMf_LOCALE) | |
| 4612 | ? isSPACE_LC(*s) : isSPACE(*s))) | |
| 4613 | ++s; | |
| 79072805 LW |
4614 | } |
| 4615 | } | |
| 770526c1 | 4616 | else if (rx->precomp[0] == '^' && rx->precomp[1] == '\0') { |
| a0d0e21e | 4617 | while (--limit) { |
| a6e20a40 AL |
4618 | for (m = s; m < strend && *m != '\n'; m++) |
| 4619 | ; | |
| a0d0e21e LW |
4620 | m++; |
| 4621 | if (m >= strend) | |
| 4622 | break; | |
| f2b990bf | 4623 | dstr = newSVpvn(s, m-s); |
| 8ec5e241 | 4624 | if (make_mortal) |
| a0d0e21e | 4625 | sv_2mortal(dstr); |
| 792b2c16 | 4626 | if (do_utf8) |
| 28cb3359 | 4627 | (void)SvUTF8_on(dstr); |
| a0d0e21e LW |
4628 | XPUSHs(dstr); |
| 4629 | s = m; | |
| 4630 | } | |
| 4631 | } | |
| 699c3c34 JH |
4632 | else if (do_utf8 == ((rx->reganch & ROPT_UTF8) != 0) && |
| 4633 | (rx->reganch & RE_USE_INTUIT) && !rx->nparens | |
| d9f97599 GS |
4634 | && (rx->reganch & ROPT_CHECK_ALL) |
| 4635 | && !(rx->reganch & ROPT_ANCH)) { | |
| 1b6737cc AL |
4636 | const int tail = (rx->reganch & RE_INTUIT_TAIL); |
| 4637 | SV * const csv = CALLREG_INTUIT_STRING(aTHX_ rx); | |
| cf93c79d | 4638 | |
| ca5b42cb | 4639 | len = rx->minlen; |
| 1aa99e6b | 4640 | if (len == 1 && !(rx->reganch & ROPT_UTF8) && !tail) { |
| 1b6737cc | 4641 | const char c = *SvPV_nolen_const(csv); |
| a0d0e21e | 4642 | while (--limit) { |
| a6e20a40 AL |
4643 | for (m = s; m < strend && *m != c; m++) |
| 4644 | ; | |
| a0d0e21e LW |
4645 | if (m >= strend) |
| 4646 | break; | |
| f2b990bf | 4647 | dstr = newSVpvn(s, m-s); |
| 8ec5e241 | 4648 | if (make_mortal) |
| a0d0e21e | 4649 | sv_2mortal(dstr); |
| 792b2c16 | 4650 | if (do_utf8) |
| 28cb3359 | 4651 | (void)SvUTF8_on(dstr); |
| a0d0e21e | 4652 | XPUSHs(dstr); |
| 93f04dac JH |
4653 | /* The rx->minlen is in characters but we want to step |
| 4654 | * s ahead by bytes. */ | |
| 1aa99e6b IH |
4655 | if (do_utf8) |
| 4656 | s = (char*)utf8_hop((U8*)m, len); | |
| 4657 | else | |
| 4658 | s = m + len; /* Fake \n at the end */ | |
| a0d0e21e LW |
4659 | } |
| 4660 | } | |
| 4661 | else { | |
| a0d0e21e | 4662 | while (s < strend && --limit && |
| f722798b | 4663 | (m = fbm_instr((unsigned char*)s, (unsigned char*)strend, |
| 7fba1cd6 | 4664 | csv, multiline ? FBMrf_MULTILINE : 0)) ) |
| a0d0e21e | 4665 | { |
| f2b990bf | 4666 | dstr = newSVpvn(s, m-s); |
| 8ec5e241 | 4667 | if (make_mortal) |
| a0d0e21e | 4668 | sv_2mortal(dstr); |
| 792b2c16 | 4669 | if (do_utf8) |
| 28cb3359 | 4670 | (void)SvUTF8_on(dstr); |
| a0d0e21e | 4671 | XPUSHs(dstr); |
| 93f04dac JH |
4672 | /* The rx->minlen is in characters but we want to step |
| 4673 | * s ahead by bytes. */ | |
| 1aa99e6b IH |
4674 | if (do_utf8) |
| 4675 | s = (char*)utf8_hop((U8*)m, len); | |
| 4676 | else | |
| 4677 | s = m + len; /* Fake \n at the end */ | |
| a0d0e21e | 4678 | } |
| 463ee0b2 | 4679 | } |
| 463ee0b2 | 4680 | } |
| a0d0e21e | 4681 | else { |
| 792b2c16 | 4682 | maxiters += slen * rx->nparens; |
| 080c2dec | 4683 | while (s < strend && --limit) |
| bbce6d69 | 4684 | { |
| 1b6737cc | 4685 | I32 rex_return; |
| 080c2dec | 4686 | PUTBACK; |
| 1b6737cc | 4687 | rex_return = CALLREGEXEC(aTHX_ rx, (char*)s, (char*)strend, (char*)orig, 1 , |
| 727b7506 | 4688 | sv, NULL, 0); |
| 080c2dec | 4689 | SPAGAIN; |
| 1b6737cc | 4690 | if (rex_return == 0) |
| 080c2dec | 4691 | break; |
| d9f97599 | 4692 | TAINT_IF(RX_MATCH_TAINTED(rx)); |
| cf93c79d | 4693 | if (RX_MATCH_COPIED(rx) && rx->subbeg != orig) { |
| a0d0e21e LW |
4694 | m = s; |
| 4695 | s = orig; | |
| cf93c79d | 4696 | orig = rx->subbeg; |
| a0d0e21e LW |
4697 | s = orig + (m - s); |
| 4698 | strend = s + (strend - m); | |
| 4699 | } | |
| cf93c79d | 4700 | m = rx->startp[0] + orig; |
| f2b990bf | 4701 | dstr = newSVpvn(s, m-s); |
| 8ec5e241 | 4702 | if (make_mortal) |
| a0d0e21e | 4703 | sv_2mortal(dstr); |
| 792b2c16 | 4704 | if (do_utf8) |
| 28cb3359 | 4705 | (void)SvUTF8_on(dstr); |
| a0d0e21e | 4706 | XPUSHs(dstr); |
| d9f97599 | 4707 | if (rx->nparens) { |
| 1b6737cc | 4708 | I32 i; |
| eb160463 | 4709 | for (i = 1; i <= (I32)rx->nparens; i++) { |
| cf93c79d IZ |
4710 | s = rx->startp[i] + orig; |
| 4711 | m = rx->endp[i] + orig; | |
| 6de67870 JP |
4712 | |
| 4713 | /* japhy (07/27/01) -- the (m && s) test doesn't catch | |
| 4714 | parens that didn't match -- they should be set to | |
| 4715 | undef, not the empty string */ | |
| 4716 | if (m >= orig && s >= orig) { | |
| f2b990bf | 4717 | dstr = newSVpvn(s, m-s); |
| 748a9306 LW |
4718 | } |
| 4719 | else | |
| 6de67870 | 4720 | dstr = &PL_sv_undef; /* undef, not "" */ |
| 8ec5e241 | 4721 | if (make_mortal) |
| a0d0e21e | 4722 | sv_2mortal(dstr); |
| 792b2c16 | 4723 | if (do_utf8) |
| 28cb3359 | 4724 | (void)SvUTF8_on(dstr); |
| a0d0e21e LW |
4725 | XPUSHs(dstr); |
| 4726 | } | |
| 4727 | } | |
| cf93c79d | 4728 | s = rx->endp[0] + orig; |
| a0d0e21e | 4729 | } |
| 79072805 | 4730 | } |
| 8ec5e241 | 4731 | |
| 3280af22 | 4732 | iters = (SP - PL_stack_base) - base; |
| a0d0e21e | 4733 | if (iters > maxiters) |
| cea2e8a9 | 4734 | DIE(aTHX_ "Split loop"); |
| 8ec5e241 | 4735 | |
| a0d0e21e LW |
4736 | /* keep field after final delim? */ |
| 4737 | if (s < strend || (iters && origlimit)) { | |
| 1b6737cc | 4738 | const STRLEN l = strend - s; |
| f2b990bf | 4739 | dstr = newSVpvn(s, l); |
| 8ec5e241 | 4740 | if (make_mortal) |
| a0d0e21e | 4741 | sv_2mortal(dstr); |
| 792b2c16 | 4742 | if (do_utf8) |
| 28cb3359 | 4743 | (void)SvUTF8_on(dstr); |
| a0d0e21e LW |
4744 | XPUSHs(dstr); |
| 4745 | iters++; | |
| 79072805 | 4746 | } |
| a0d0e21e | 4747 | else if (!origlimit) { |
| 89900bd3 SR |
4748 | while (iters > 0 && (!TOPs || !SvANY(TOPs) || SvCUR(TOPs) == 0)) { |
| 4749 | if (TOPs && !make_mortal) | |
| 4750 | sv_2mortal(TOPs); | |
| 4751 | iters--; | |
| e3a8873f | 4752 | *SP-- = &PL_sv_undef; |
| 89900bd3 | 4753 | } |
| a0d0e21e | 4754 | } |
| 8ec5e241 | 4755 | |
| 8b7059b1 DM |
4756 | PUTBACK; |
| 4757 | LEAVE_SCOPE(oldsave); /* may undo an earlier SWITCHSTACK */ | |
| 4758 | SPAGAIN; | |
| a0d0e21e | 4759 | if (realarray) { |
| 8ec5e241 | 4760 | if (!mg) { |
| 1c0b011c NIS |
4761 | if (SvSMAGICAL(ary)) { |
| 4762 | PUTBACK; | |
| 4763 | mg_set((SV*)ary); | |
| 4764 | SPAGAIN; | |
| 4765 | } | |
| 4766 | if (gimme == G_ARRAY) { | |
| 4767 | EXTEND(SP, iters); | |
| 4768 | Copy(AvARRAY(ary), SP + 1, iters, SV*); | |
| 4769 | SP += iters; | |
| 4770 | RETURN; | |
| 4771 | } | |
| 8ec5e241 | 4772 | } |
| 1c0b011c | 4773 | else { |
| fb73857a | 4774 | PUTBACK; |
| 8ec5e241 | 4775 | ENTER; |
| 864dbfa3 | 4776 | call_method("PUSH",G_SCALAR|G_DISCARD); |
| 8ec5e241 | 4777 | LEAVE; |
| fb73857a | 4778 | SPAGAIN; |
| 8ec5e241 | 4779 | if (gimme == G_ARRAY) { |
| 1b6737cc | 4780 | I32 i; |
| 8ec5e241 NIS |
4781 | /* EXTEND should not be needed - we just popped them */ |
| 4782 | EXTEND(SP, iters); | |
| 4783 | for (i=0; i < iters; i++) { | |
| 4784 | SV **svp = av_fetch(ary, i, FALSE); | |
| 3280af22 | 4785 | PUSHs((svp) ? *svp : &PL_sv_undef); |
| 8ec5e241 | 4786 | } |
| 1c0b011c NIS |
4787 | RETURN; |
| 4788 | } | |
| a0d0e21e LW |
4789 | } |
| 4790 | } | |
| 4791 | else { | |
| 4792 | if (gimme == G_ARRAY) | |
| 4793 | RETURN; | |
| 4794 | } | |
| 7f18b612 YST |
4795 | |
| 4796 | GETTARGET; | |
| 4797 | PUSHi(iters); | |
| 4798 | RETURN; | |
| 79072805 | 4799 | } |
| 85e6fe83 | 4800 | |
| c0329465 MB |
4801 | PP(pp_lock) |
| 4802 | { | |
| 97aff369 | 4803 | dVAR; |
| 39644a26 | 4804 | dSP; |
| c0329465 | 4805 | dTOPss; |
| e55aaa0e | 4806 | SV *retsv = sv; |
| 68795e93 | 4807 | SvLOCK(sv); |
| e55aaa0e MB |
4808 | if (SvTYPE(retsv) == SVt_PVAV || SvTYPE(retsv) == SVt_PVHV |
| 4809 | || SvTYPE(retsv) == SVt_PVCV) { | |
| 4810 | retsv = refto(retsv); | |
| 4811 | } | |
| 4812 | SETs(retsv); | |
| c0329465 MB |
4813 | RETURN; |
| 4814 | } | |
| a863c7d1 | 4815 | |
| 65bca31a NC |
4816 | |
| 4817 | PP(unimplemented_op) | |
| 4818 | { | |
| 97aff369 | 4819 | dVAR; |
| 65bca31a NC |
4820 | DIE(aTHX_ "panic: unimplemented op %s (#%d) called", OP_NAME(PL_op), |
| 4821 | PL_op->op_type); | |
| 4822 | } | |
| 4823 | ||
| e609e586 NC |
4824 | /* |
| 4825 | * Local variables: | |
| 4826 | * c-indentation-style: bsd | |
| 4827 | * c-basic-offset: 4 | |
| 4828 | * indent-tabs-mode: t | |
| 4829 | * End: | |
| 4830 | * | |
| 37442d52 RGS |
4831 | * ex: set ts=8 sts=4 sw=4 noet: |
| 4832 | */ |