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, |
| fdf8c088 | 4 | * 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007 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) |
| a5911867 RGS |
64 | if (!(PL_op->op_private & OPpPAD_STATE)) |
| 65 | SAVECLEARSV(PAD_SVl(PL_op->op_targ)); | |
| 85e6fe83 | 66 | EXTEND(SP, 1); |
| 533c011a | 67 | if (PL_op->op_flags & OPf_REF) { |
| 85e6fe83 | 68 | PUSHs(TARG); |
| 93a17b20 | 69 | RETURN; |
| 78f9721b SM |
70 | } else if (LVRET) { |
| 71 | if (GIMME == G_SCALAR) | |
| 72 | Perl_croak(aTHX_ "Can't return array to lvalue scalar context"); | |
| 73 | PUSHs(TARG); | |
| 74 | RETURN; | |
| 85e6fe83 | 75 | } |
| 13017935 SM |
76 | gimme = GIMME_V; |
| 77 | if (gimme == G_ARRAY) { | |
| f54cb97a | 78 | const I32 maxarg = AvFILL((AV*)TARG) + 1; |
| 85e6fe83 | 79 | EXTEND(SP, maxarg); |
| 93965878 NIS |
80 | if (SvMAGICAL(TARG)) { |
| 81 | U32 i; | |
| eb160463 | 82 | for (i=0; i < (U32)maxarg; i++) { |
| 0bd48802 | 83 | SV * const * const svp = av_fetch((AV*)TARG, i, FALSE); |
| 3280af22 | 84 | SP[i+1] = (svp) ? *svp : &PL_sv_undef; |
| 93965878 NIS |
85 | } |
| 86 | } | |
| 87 | else { | |
| 88 | Copy(AvARRAY((AV*)TARG), SP+1, maxarg, SV*); | |
| 89 | } | |
| 85e6fe83 LW |
90 | SP += maxarg; |
| 91 | } | |
| 13017935 | 92 | else if (gimme == G_SCALAR) { |
| 1b6737cc | 93 | SV* const sv = sv_newmortal(); |
| f54cb97a | 94 | const I32 maxarg = AvFILL((AV*)TARG) + 1; |
| 85e6fe83 LW |
95 | sv_setiv(sv, maxarg); |
| 96 | PUSHs(sv); | |
| 97 | } | |
| 98 | RETURN; | |
| 93a17b20 LW |
99 | } |
| 100 | ||
| 101 | PP(pp_padhv) | |
| 102 | { | |
| 97aff369 | 103 | dVAR; dSP; dTARGET; |
| 54310121 PP |
104 | I32 gimme; |
| 105 | ||
| 93a17b20 | 106 | XPUSHs(TARG); |
| 533c011a | 107 | if (PL_op->op_private & OPpLVAL_INTRO) |
| a5911867 RGS |
108 | if (!(PL_op->op_private & OPpPAD_STATE)) |
| 109 | SAVECLEARSV(PAD_SVl(PL_op->op_targ)); | |
| 533c011a | 110 | if (PL_op->op_flags & OPf_REF) |
| 93a17b20 | 111 | RETURN; |
| 78f9721b SM |
112 | else if (LVRET) { |
| 113 | if (GIMME == G_SCALAR) | |
| 114 | Perl_croak(aTHX_ "Can't return hash to lvalue scalar context"); | |
| 115 | RETURN; | |
| 116 | } | |
| 54310121 PP |
117 | gimme = GIMME_V; |
| 118 | if (gimme == G_ARRAY) { | |
| cea2e8a9 | 119 | RETURNOP(do_kv()); |
| 85e6fe83 | 120 | } |
| 54310121 | 121 | else if (gimme == G_SCALAR) { |
| 1b6737cc | 122 | SV* const sv = Perl_hv_scalar(aTHX_ (HV*)TARG); |
| 85e6fe83 | 123 | SETs(sv); |
| 85e6fe83 | 124 | } |
| 54310121 | 125 | RETURN; |
| 93a17b20 LW |
126 | } |
| 127 | ||
| 79072805 LW |
128 | /* Translations. */ |
| 129 | ||
| 130 | PP(pp_rv2gv) | |
| 131 | { | |
| 97aff369 | 132 | dVAR; dSP; dTOPss; |
| 8ec5e241 | 133 | |
| ed6116ce | 134 | if (SvROK(sv)) { |
| a0d0e21e | 135 | wasref: |
| f5284f61 IZ |
136 | tryAMAGICunDEREF(to_gv); |
| 137 | ||
| ed6116ce | 138 | sv = SvRV(sv); |
| b1dadf13 | 139 | if (SvTYPE(sv) == SVt_PVIO) { |
| 1b6737cc | 140 | GV * const gv = (GV*) sv_newmortal(); |
| b1dadf13 PP |
141 | gv_init(gv, 0, "", 0, 0); |
| 142 | GvIOp(gv) = (IO *)sv; | |
| b37c2d43 | 143 | SvREFCNT_inc_void_NN(sv); |
| b1dadf13 | 144 | sv = (SV*) gv; |
| ef54e1a4 JH |
145 | } |
| 146 | else if (SvTYPE(sv) != SVt_PVGV) | |
| cea2e8a9 | 147 | DIE(aTHX_ "Not a GLOB reference"); |
| 79072805 LW |
148 | } |
| 149 | else { | |
| 93a17b20 | 150 | if (SvTYPE(sv) != SVt_PVGV) { |
| a0d0e21e LW |
151 | if (SvGMAGICAL(sv)) { |
| 152 | mg_get(sv); | |
| 153 | if (SvROK(sv)) | |
| 154 | goto wasref; | |
| 155 | } | |
| afd1915d | 156 | if (!SvOK(sv) && sv != &PL_sv_undef) { |
| b13b2135 | 157 | /* If this is a 'my' scalar and flag is set then vivify |
| 853846ea | 158 | * NI-S 1999/05/07 |
| b13b2135 | 159 | */ |
| ac53db4c DM |
160 | if (SvREADONLY(sv)) |
| 161 | Perl_croak(aTHX_ PL_no_modify); | |
| 1d8d4d2a | 162 | if (PL_op->op_private & OPpDEREF) { |
| 2c8ac474 GS |
163 | GV *gv; |
| 164 | if (cUNOP->op_targ) { | |
| 165 | STRLEN len; | |
| 0bd48802 AL |
166 | SV * const namesv = PAD_SV(cUNOP->op_targ); |
| 167 | const char * const name = SvPV(namesv, len); | |
| 561b68a9 | 168 | gv = (GV*)newSV(0); |
| 2c8ac474 GS |
169 | gv_init(gv, CopSTASH(PL_curcop), name, len, 0); |
| 170 | } | |
| 171 | else { | |
| 0bd48802 | 172 | const char * const name = CopSTASHPV(PL_curcop); |
| 2c8ac474 | 173 | gv = newGVgen(name); |
| 1d8d4d2a | 174 | } |
| b13b2135 NIS |
175 | if (SvTYPE(sv) < SVt_RV) |
| 176 | sv_upgrade(sv, SVt_RV); | |
| bc6af7f8 | 177 | else if (SvPVX_const(sv)) { |
| 8bd4d4c5 | 178 | SvPV_free(sv); |
| b162af07 SP |
179 | SvLEN_set(sv, 0); |
| 180 | SvCUR_set(sv, 0); | |
| 8f3c2c0c | 181 | } |
| b162af07 | 182 | SvRV_set(sv, (SV*)gv); |
| 853846ea | 183 | SvROK_on(sv); |
| 1d8d4d2a | 184 | SvSETMAGIC(sv); |
| 853846ea | 185 | goto wasref; |
| 2c8ac474 | 186 | } |
| 533c011a NIS |
187 | if (PL_op->op_flags & OPf_REF || |
| 188 | PL_op->op_private & HINT_STRICT_REFS) | |
| cea2e8a9 | 189 | DIE(aTHX_ PL_no_usym, "a symbol"); |
| 599cee73 | 190 | if (ckWARN(WARN_UNINITIALIZED)) |
| 29489e7c | 191 | report_uninit(sv); |
| a0d0e21e LW |
192 | RETSETUNDEF; |
| 193 | } | |
| 35cd451c GS |
194 | if ((PL_op->op_flags & OPf_SPECIAL) && |
| 195 | !(PL_op->op_flags & OPf_MOD)) | |
| 196 | { | |
| f776e3cd | 197 | SV * const temp = (SV*)gv_fetchsv(sv, 0, SVt_PVGV); |
| 7a5fd60d NC |
198 | if (!temp |
| 199 | && (!is_gv_magical_sv(sv,0) | |
| f776e3cd | 200 | || !(sv = (SV*)gv_fetchsv(sv, GV_ADD, SVt_PVGV)))) { |
| 35cd451c | 201 | RETSETUNDEF; |
| c9d5ac95 | 202 | } |
| 7a5fd60d | 203 | sv = temp; |
| 35cd451c GS |
204 | } |
| 205 | else { | |
| 206 | if (PL_op->op_private & HINT_STRICT_REFS) | |
| 7a5fd60d | 207 | DIE(aTHX_ PL_no_symref_sv, sv, "a symbol"); |
| e26df76a NC |
208 | if ((PL_op->op_private & (OPpLVAL_INTRO|OPpDONT_INIT_GV)) |
| 209 | == OPpDONT_INIT_GV) { | |
| 210 | /* We are the target of a coderef assignment. Return | |
| 211 | the scalar unchanged, and let pp_sasssign deal with | |
| 212 | things. */ | |
| 213 | RETURN; | |
| 214 | } | |
| f776e3cd | 215 | sv = (SV*)gv_fetchsv(sv, GV_ADD, SVt_PVGV); |
| 35cd451c | 216 | } |
| 93a17b20 | 217 | } |
| 79072805 | 218 | } |
| 533c011a NIS |
219 | if (PL_op->op_private & OPpLVAL_INTRO) |
| 220 | save_gp((GV*)sv, !(PL_op->op_flags & OPf_SPECIAL)); | |
| 79072805 LW |
221 | SETs(sv); |
| 222 | RETURN; | |
| 223 | } | |
| 224 | ||
| dc3c76f8 NC |
225 | /* Helper function for pp_rv2sv and pp_rv2av */ |
| 226 | GV * | |
| 227 | Perl_softref2xv(pTHX_ SV *const sv, const char *const what, const U32 type, | |
| 228 | SV ***spp) | |
| 229 | { | |
| 230 | dVAR; | |
| 231 | GV *gv; | |
| 232 | ||
| 233 | if (PL_op->op_private & HINT_STRICT_REFS) { | |
| 234 | if (SvOK(sv)) | |
| 235 | Perl_die(aTHX_ PL_no_symref_sv, sv, what); | |
| 236 | else | |
| 237 | Perl_die(aTHX_ PL_no_usym, what); | |
| 238 | } | |
| 239 | if (!SvOK(sv)) { | |
| 240 | if (PL_op->op_flags & OPf_REF) | |
| 241 | Perl_die(aTHX_ PL_no_usym, what); | |
| 242 | if (ckWARN(WARN_UNINITIALIZED)) | |
| 243 | report_uninit(sv); | |
| 244 | if (type != SVt_PV && GIMME_V == G_ARRAY) { | |
| 245 | (*spp)--; | |
| 246 | return NULL; | |
| 247 | } | |
| 248 | **spp = &PL_sv_undef; | |
| 249 | return NULL; | |
| 250 | } | |
| 251 | if ((PL_op->op_flags & OPf_SPECIAL) && | |
| 252 | !(PL_op->op_flags & OPf_MOD)) | |
| 253 | { | |
| 81e3fc25 | 254 | gv = gv_fetchsv(sv, 0, type); |
| dc3c76f8 NC |
255 | if (!gv |
| 256 | && (!is_gv_magical_sv(sv,0) | |
| 81e3fc25 | 257 | || !(gv = gv_fetchsv(sv, GV_ADD, type)))) |
| dc3c76f8 NC |
258 | { |
| 259 | **spp = &PL_sv_undef; | |
| 260 | return NULL; | |
| 261 | } | |
| 262 | } | |
| 263 | else { | |
| 81e3fc25 | 264 | gv = gv_fetchsv(sv, GV_ADD, type); |
| dc3c76f8 NC |
265 | } |
| 266 | return gv; | |
| 267 | } | |
| 268 | ||
| 79072805 LW |
269 | PP(pp_rv2sv) |
| 270 | { | |
| 97aff369 | 271 | dVAR; dSP; dTOPss; |
| c445ea15 | 272 | GV *gv = NULL; |
| 79072805 | 273 | |
| ed6116ce | 274 | if (SvROK(sv)) { |
| a0d0e21e | 275 | wasref: |
| f5284f61 IZ |
276 | tryAMAGICunDEREF(to_sv); |
| 277 | ||
| ed6116ce | 278 | sv = SvRV(sv); |
| 79072805 LW |
279 | switch (SvTYPE(sv)) { |
| 280 | case SVt_PVAV: | |
| 281 | case SVt_PVHV: | |
| 282 | case SVt_PVCV: | |
| cbae9b9f YST |
283 | case SVt_PVFM: |
| 284 | case SVt_PVIO: | |
| cea2e8a9 | 285 | DIE(aTHX_ "Not a SCALAR reference"); |
| 42d0e0b7 | 286 | default: NOOP; |
| 79072805 LW |
287 | } |
| 288 | } | |
| 289 | else { | |
| 82d03984 | 290 | gv = (GV*)sv; |
| 748a9306 | 291 | |
| 463ee0b2 | 292 | if (SvTYPE(gv) != SVt_PVGV) { |
| a0d0e21e LW |
293 | if (SvGMAGICAL(sv)) { |
| 294 | mg_get(sv); | |
| 295 | if (SvROK(sv)) | |
| 296 | goto wasref; | |
| 297 | } | |
| dc3c76f8 NC |
298 | gv = Perl_softref2xv(aTHX_ sv, "a SCALAR", SVt_PV, &sp); |
| 299 | if (!gv) | |
| 300 | RETURN; | |
| 463ee0b2 | 301 | } |
| 29c711a3 | 302 | sv = GvSVn(gv); |
| a0d0e21e | 303 | } |
| 533c011a | 304 | if (PL_op->op_flags & OPf_MOD) { |
| 82d03984 RGS |
305 | if (PL_op->op_private & OPpLVAL_INTRO) { |
| 306 | if (cUNOP->op_first->op_type == OP_NULL) | |
| 307 | sv = save_scalar((GV*)TOPs); | |
| 308 | else if (gv) | |
| 309 | sv = save_scalar(gv); | |
| 310 | else | |
| 311 | Perl_croak(aTHX_ PL_no_localize_ref); | |
| 312 | } | |
| 533c011a NIS |
313 | else if (PL_op->op_private & OPpDEREF) |
| 314 | vivify_ref(sv, PL_op->op_private & OPpDEREF); | |
| 79072805 | 315 | } |
| a0d0e21e | 316 | SETs(sv); |
| 79072805 LW |
317 | RETURN; |
| 318 | } | |
| 319 | ||
| 320 | PP(pp_av2arylen) | |
| 321 | { | |
| 97aff369 | 322 | dVAR; dSP; |
| 1b6737cc AL |
323 | AV * const av = (AV*)TOPs; |
| 324 | SV ** const sv = Perl_av_arylen_p(aTHX_ (AV*)av); | |
| a3874608 | 325 | if (!*sv) { |
| b9f83d2f | 326 | *sv = newSV_type(SVt_PVMG); |
| c445ea15 | 327 | sv_magic(*sv, (SV*)av, PERL_MAGIC_arylen, NULL, 0); |
| 79072805 | 328 | } |
| a3874608 | 329 | SETs(*sv); |
| 79072805 LW |
330 | RETURN; |
| 331 | } | |
| 332 | ||
| a0d0e21e LW |
333 | PP(pp_pos) |
| 334 | { | |
| 97aff369 | 335 | dVAR; dSP; dTARGET; dPOPss; |
| 8ec5e241 | 336 | |
| 78f9721b | 337 | if (PL_op->op_flags & OPf_MOD || LVRET) { |
| 5f05dabc PP |
338 | if (SvTYPE(TARG) < SVt_PVLV) { |
| 339 | sv_upgrade(TARG, SVt_PVLV); | |
| c445ea15 | 340 | sv_magic(TARG, NULL, PERL_MAGIC_pos, NULL, 0); |
| 5f05dabc PP |
341 | } |
| 342 | ||
| 343 | LvTYPE(TARG) = '.'; | |
| 6ff81951 GS |
344 | if (LvTARG(TARG) != sv) { |
| 345 | if (LvTARG(TARG)) | |
| 346 | SvREFCNT_dec(LvTARG(TARG)); | |
| b37c2d43 | 347 | LvTARG(TARG) = SvREFCNT_inc_simple(sv); |
| 6ff81951 | 348 | } |
| a0d0e21e LW |
349 | PUSHs(TARG); /* no SvSETMAGIC */ |
| 350 | RETURN; | |
| 351 | } | |
| 352 | else { | |
| a0d0e21e | 353 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) { |
| 1b6737cc | 354 | const MAGIC * const mg = mg_find(sv, PERL_MAGIC_regex_global); |
| 565764a8 | 355 | if (mg && mg->mg_len >= 0) { |
| a0ed51b3 | 356 | I32 i = mg->mg_len; |
| 7e2040f0 | 357 | if (DO_UTF8(sv)) |
| a0ed51b3 | 358 | sv_pos_b2u(sv, &i); |
| fc15ae8f | 359 | PUSHi(i + CopARYBASE_get(PL_curcop)); |
| a0d0e21e LW |
360 | RETURN; |
| 361 | } | |
| 362 | } | |
| 363 | RETPUSHUNDEF; | |
| 364 | } | |
| 365 | } | |
| 366 | ||
| 79072805 LW |
367 | PP(pp_rv2cv) |
| 368 | { | |
| 97aff369 | 369 | dVAR; dSP; |
| 79072805 | 370 | GV *gv; |
| 1eced8f8 | 371 | HV *stash_unused; |
| c445ea15 AL |
372 | const I32 flags = (PL_op->op_flags & OPf_SPECIAL) |
| 373 | ? 0 | |
| 374 | : ((PL_op->op_private & (OPpLVAL_INTRO|OPpMAY_RETURN_CONSTANT)) == OPpMAY_RETURN_CONSTANT) | |
| 375 | ? GV_ADD|GV_NOEXPAND | |
| 376 | : GV_ADD; | |
| 4633a7c4 LW |
377 | /* We usually try to add a non-existent subroutine in case of AUTOLOAD. */ |
| 378 | /* (But not in defined().) */ | |
| e26df76a | 379 | |
| 1eced8f8 | 380 | CV *cv = sv_2cv(TOPs, &stash_unused, &gv, flags); |
| 07055b4c CS |
381 | if (cv) { |
| 382 | if (CvCLONE(cv)) | |
| 383 | cv = (CV*)sv_2mortal((SV*)cv_clone(cv)); | |
| d32f2495 SC |
384 | if ((PL_op->op_private & OPpLVAL_INTRO)) { |
| 385 | if (gv && GvCV(gv) == cv && (gv = gv_autoload4(GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv), FALSE))) | |
| 386 | cv = GvCV(gv); | |
| 387 | if (!CvLVALUE(cv)) | |
| 388 | DIE(aTHX_ "Can't modify non-lvalue subroutine call"); | |
| 389 | } | |
| 07055b4c | 390 | } |
| e26df76a NC |
391 | else if ((flags == (GV_ADD|GV_NOEXPAND)) && gv && SvROK(gv)) { |
| 392 | cv = (CV*)gv; | |
| 393 | } | |
| 07055b4c | 394 | else |
| 3280af22 | 395 | cv = (CV*)&PL_sv_undef; |
| 79072805 LW |
396 | SETs((SV*)cv); |
| 397 | RETURN; | |
| 398 | } | |
| 399 | ||
| c07a80fd PP |
400 | PP(pp_prototype) |
| 401 | { | |
| 97aff369 | 402 | dVAR; dSP; |
| c07a80fd PP |
403 | CV *cv; |
| 404 | HV *stash; | |
| 405 | GV *gv; | |
| fabdb6c0 | 406 | SV *ret = &PL_sv_undef; |
| c07a80fd | 407 | |
| b6c543e3 | 408 | if (SvPOK(TOPs) && SvCUR(TOPs) >= 7) { |
| e3f73d4e | 409 | const char * s = SvPVX_const(TOPs); |
| b6c543e3 | 410 | if (strnEQ(s, "CORE::", 6)) { |
| 5458a98a | 411 | const int code = keyword(s + 6, SvCUR(TOPs) - 6, 1); |
| b6c543e3 IZ |
412 | if (code < 0) { /* Overridable. */ |
| 413 | #define MAX_ARGS_OP ((sizeof(I32) - 1) * 2) | |
| 59b085e1 | 414 | int i = 0, n = 0, seen_question = 0, defgv = 0; |
| b6c543e3 IZ |
415 | I32 oa; |
| 416 | char str[ MAX_ARGS_OP * 2 + 2 ]; /* One ';', one '\0' */ | |
| 417 | ||
| bdf1bb36 | 418 | if (code == -KEY_chop || code == -KEY_chomp |
| 5458a98a | 419 | || code == -KEY_exec || code == -KEY_system || code == -KEY_err) |
| 77bc9082 | 420 | goto set; |
| d116c547 RGS |
421 | if (code == -KEY_mkdir) { |
| 422 | ret = sv_2mortal(newSVpvs("_;$")); | |
| 423 | goto set; | |
| 424 | } | |
| e3f73d4e RGS |
425 | if (code == -KEY_readpipe) { |
| 426 | s = "CORE::backtick"; | |
| 427 | } | |
| b6c543e3 | 428 | while (i < MAXO) { /* The slow way. */ |
| 22c35a8c GS |
429 | if (strEQ(s + 6, PL_op_name[i]) |
| 430 | || strEQ(s + 6, PL_op_desc[i])) | |
| 431 | { | |
| b6c543e3 | 432 | goto found; |
| 22c35a8c | 433 | } |
| b6c543e3 IZ |
434 | i++; |
| 435 | } | |
| 436 | goto nonesuch; /* Should not happen... */ | |
| 437 | found: | |
| 59b085e1 | 438 | defgv = PL_opargs[i] & OA_DEFGV; |
| 22c35a8c | 439 | oa = PL_opargs[i] >> OASHIFT; |
| b6c543e3 | 440 | while (oa) { |
| 59b085e1 | 441 | if (oa & OA_OPTIONAL && !seen_question && !defgv) { |
| b6c543e3 IZ |
442 | seen_question = 1; |
| 443 | str[n++] = ';'; | |
| ef54e1a4 | 444 | } |
| b13b2135 | 445 | if ((oa & (OA_OPTIONAL - 1)) >= OA_AVREF |
| 6e97e420 SC |
446 | && (oa & (OA_OPTIONAL - 1)) <= OA_SCALARREF |
| 447 | /* But globs are already references (kinda) */ | |
| 448 | && (oa & (OA_OPTIONAL - 1)) != OA_FILEREF | |
| 449 | ) { | |
| b6c543e3 IZ |
450 | str[n++] = '\\'; |
| 451 | } | |
| b6c543e3 IZ |
452 | str[n++] = ("?$@@%&*$")[oa & (OA_OPTIONAL - 1)]; |
| 453 | oa = oa >> 4; | |
| 454 | } | |
| 59b085e1 RGS |
455 | if (defgv && str[n - 1] == '$') |
| 456 | str[n - 1] = '_'; | |
| b6c543e3 | 457 | str[n++] = '\0'; |
| 79cb57f6 | 458 | ret = sv_2mortal(newSVpvn(str, n - 1)); |
| ef54e1a4 JH |
459 | } |
| 460 | else if (code) /* Non-Overridable */ | |
| b6c543e3 IZ |
461 | goto set; |
| 462 | else { /* None such */ | |
| 463 | nonesuch: | |
| d470f89e | 464 | DIE(aTHX_ "Can't find an opnumber for \"%s\"", s+6); |
| b6c543e3 IZ |
465 | } |
| 466 | } | |
| 467 | } | |
| f2c0649b | 468 | cv = sv_2cv(TOPs, &stash, &gv, 0); |
| 5f05dabc | 469 | if (cv && SvPOK(cv)) |
| b15aece3 | 470 | ret = sv_2mortal(newSVpvn(SvPVX_const(cv), SvCUR(cv))); |
| b6c543e3 | 471 | set: |
| c07a80fd PP |
472 | SETs(ret); |
| 473 | RETURN; | |
| 474 | } | |
| 475 | ||
| a0d0e21e LW |
476 | PP(pp_anoncode) |
| 477 | { | |
| 97aff369 | 478 | dVAR; dSP; |
| dd2155a4 | 479 | CV* cv = (CV*)PAD_SV(PL_op->op_targ); |
| a5f75d66 | 480 | if (CvCLONE(cv)) |
| b355b4e0 | 481 | cv = (CV*)sv_2mortal((SV*)cv_clone(cv)); |
| 5f05dabc | 482 | EXTEND(SP,1); |
| 748a9306 | 483 | PUSHs((SV*)cv); |
| a0d0e21e LW |
484 | RETURN; |
| 485 | } | |
| 486 | ||
| 487 | PP(pp_srefgen) | |
| 79072805 | 488 | { |
| 97aff369 | 489 | dVAR; dSP; |
| 71be2cbc | 490 | *SP = refto(*SP); |
| 79072805 | 491 | RETURN; |
| 8ec5e241 | 492 | } |
| a0d0e21e LW |
493 | |
| 494 | PP(pp_refgen) | |
| 495 | { | |
| 97aff369 | 496 | dVAR; dSP; dMARK; |
| a0d0e21e | 497 | if (GIMME != G_ARRAY) { |
| 5f0b1d4e GS |
498 | if (++MARK <= SP) |
| 499 | *MARK = *SP; | |
| 500 | else | |
| 3280af22 | 501 | *MARK = &PL_sv_undef; |
| 5f0b1d4e GS |
502 | *MARK = refto(*MARK); |
| 503 | SP = MARK; | |
| 504 | RETURN; | |
| a0d0e21e | 505 | } |
| bbce6d69 | 506 | EXTEND_MORTAL(SP - MARK); |
| 71be2cbc PP |
507 | while (++MARK <= SP) |
| 508 | *MARK = refto(*MARK); | |
| a0d0e21e | 509 | RETURN; |
| 79072805 LW |
510 | } |
| 511 | ||
| 76e3520e | 512 | STATIC SV* |
| cea2e8a9 | 513 | S_refto(pTHX_ SV *sv) |
| 71be2cbc | 514 | { |
| 97aff369 | 515 | dVAR; |
| 71be2cbc PP |
516 | SV* rv; |
| 517 | ||
| 518 | if (SvTYPE(sv) == SVt_PVLV && LvTYPE(sv) == 'y') { | |
| 519 | if (LvTARGLEN(sv)) | |
| 68dc0745 PP |
520 | vivify_defelem(sv); |
| 521 | if (!(sv = LvTARG(sv))) | |
| 3280af22 | 522 | sv = &PL_sv_undef; |
| 0dd88869 | 523 | else |
| b37c2d43 | 524 | SvREFCNT_inc_void_NN(sv); |
| 71be2cbc | 525 | } |
| d8b46c1b GS |
526 | else if (SvTYPE(sv) == SVt_PVAV) { |
| 527 | if (!AvREAL((AV*)sv) && AvREIFY((AV*)sv)) | |
| 528 | av_reify((AV*)sv); | |
| 529 | SvTEMP_off(sv); | |
| b37c2d43 | 530 | SvREFCNT_inc_void_NN(sv); |
| d8b46c1b | 531 | } |
| f2933f5f DM |
532 | else if (SvPADTMP(sv) && !IS_PADGV(sv)) |
| 533 | sv = newSVsv(sv); | |
| 71be2cbc PP |
534 | else { |
| 535 | SvTEMP_off(sv); | |
| b37c2d43 | 536 | SvREFCNT_inc_void_NN(sv); |
| 71be2cbc PP |
537 | } |
| 538 | rv = sv_newmortal(); | |
| 539 | sv_upgrade(rv, SVt_RV); | |
| b162af07 | 540 | SvRV_set(rv, sv); |
| 71be2cbc PP |
541 | SvROK_on(rv); |
| 542 | return rv; | |
| 543 | } | |
| 544 | ||
| 79072805 LW |
545 | PP(pp_ref) |
| 546 | { | |
| 97aff369 | 547 | dVAR; dSP; dTARGET; |
| e1ec3a88 | 548 | const char *pv; |
| 1b6737cc | 549 | SV * const sv = POPs; |
| f12c7020 | 550 | |
| 5b295bef RD |
551 | if (sv) |
| 552 | SvGETMAGIC(sv); | |
| f12c7020 | 553 | |
| a0d0e21e | 554 | if (!sv || !SvROK(sv)) |
| 4633a7c4 | 555 | RETPUSHNO; |
| 79072805 | 556 | |
| 1b6737cc | 557 | pv = sv_reftype(SvRV(sv),TRUE); |
| 463ee0b2 | 558 | PUSHp(pv, strlen(pv)); |
| 79072805 LW |
559 | RETURN; |
| 560 | } | |
| 561 | ||
| 562 | PP(pp_bless) | |
| 563 | { | |
| 97aff369 | 564 | dVAR; dSP; |
| 463ee0b2 | 565 | HV *stash; |
| 79072805 | 566 | |
| 463ee0b2 | 567 | if (MAXARG == 1) |
| 11faa288 | 568 | stash = CopSTASH(PL_curcop); |
| 7b8d334a | 569 | else { |
| 1b6737cc | 570 | SV * const ssv = POPs; |
| 7b8d334a | 571 | STRLEN len; |
| e1ec3a88 | 572 | const char *ptr; |
| 81689caa | 573 | |
| 016a42f3 | 574 | if (ssv && !SvGMAGICAL(ssv) && !SvAMAGIC(ssv) && SvROK(ssv)) |
| 81689caa | 575 | Perl_croak(aTHX_ "Attempt to bless into a reference"); |
| 5c144d81 | 576 | ptr = SvPV_const(ssv,len); |
| 041457d9 | 577 | if (len == 0 && ckWARN(WARN_MISC)) |
| 9014280d | 578 | Perl_warner(aTHX_ packWARN(WARN_MISC), |
| 599cee73 | 579 | "Explicit blessing to '' (assuming package main)"); |
| da51bb9b | 580 | stash = gv_stashpvn(ptr, len, GV_ADD); |
| 7b8d334a | 581 | } |
| a0d0e21e | 582 | |
| 5d3fdfeb | 583 | (void)sv_bless(TOPs, stash); |
| 79072805 LW |
584 | RETURN; |
| 585 | } | |
| 586 | ||
| fb73857a PP |
587 | PP(pp_gelem) |
| 588 | { | |
| 97aff369 | 589 | dVAR; dSP; |
| b13b2135 | 590 | |
| 1b6737cc AL |
591 | SV *sv = POPs; |
| 592 | const char * const elem = SvPV_nolen_const(sv); | |
| 593 | GV * const gv = (GV*)POPs; | |
| c445ea15 | 594 | SV * tmpRef = NULL; |
| 1b6737cc | 595 | |
| c445ea15 | 596 | sv = NULL; |
| c4ba80c3 NC |
597 | if (elem) { |
| 598 | /* elem will always be NUL terminated. */ | |
| 1b6737cc | 599 | const char * const second_letter = elem + 1; |
| c4ba80c3 NC |
600 | switch (*elem) { |
| 601 | case 'A': | |
| 1b6737cc | 602 | if (strEQ(second_letter, "RRAY")) |
| c4ba80c3 NC |
603 | tmpRef = (SV*)GvAV(gv); |
| 604 | break; | |
| 605 | case 'C': | |
| 1b6737cc | 606 | if (strEQ(second_letter, "ODE")) |
| c4ba80c3 NC |
607 | tmpRef = (SV*)GvCVu(gv); |
| 608 | break; | |
| 609 | case 'F': | |
| 1b6737cc | 610 | if (strEQ(second_letter, "ILEHANDLE")) { |
| c4ba80c3 NC |
611 | /* finally deprecated in 5.8.0 */ |
| 612 | deprecate("*glob{FILEHANDLE}"); | |
| 613 | tmpRef = (SV*)GvIOp(gv); | |
| 614 | } | |
| 615 | else | |
| 1b6737cc | 616 | if (strEQ(second_letter, "ORMAT")) |
| c4ba80c3 NC |
617 | tmpRef = (SV*)GvFORM(gv); |
| 618 | break; | |
| 619 | case 'G': | |
| 1b6737cc | 620 | if (strEQ(second_letter, "LOB")) |
| c4ba80c3 NC |
621 | tmpRef = (SV*)gv; |
| 622 | break; | |
| 623 | case 'H': | |
| 1b6737cc | 624 | if (strEQ(second_letter, "ASH")) |
| c4ba80c3 NC |
625 | tmpRef = (SV*)GvHV(gv); |
| 626 | break; | |
| 627 | case 'I': | |
| 1b6737cc | 628 | if (*second_letter == 'O' && !elem[2]) |
| c4ba80c3 NC |
629 | tmpRef = (SV*)GvIOp(gv); |
| 630 | break; | |
| 631 | case 'N': | |
| 1b6737cc | 632 | if (strEQ(second_letter, "AME")) |
| c4ba80c3 NC |
633 | sv = newSVpvn(GvNAME(gv), GvNAMELEN(gv)); |
| 634 | break; | |
| 635 | case 'P': | |
| 1b6737cc | 636 | if (strEQ(second_letter, "ACKAGE")) { |
| 7fa3a4ab NC |
637 | const HV * const stash = GvSTASH(gv); |
| 638 | const HEK * const hek = stash ? HvNAME_HEK(stash) : NULL; | |
| 396482e1 | 639 | sv = hek ? newSVhek(hek) : newSVpvs("__ANON__"); |
| c4ba80c3 NC |
640 | } |
| 641 | break; | |
| 642 | case 'S': | |
| 1b6737cc | 643 | if (strEQ(second_letter, "CALAR")) |
| f9d52e31 | 644 | tmpRef = GvSVn(gv); |
| c4ba80c3 | 645 | break; |
| 39b99f21 | 646 | } |
| fb73857a | 647 | } |
| 76e3520e GS |
648 | if (tmpRef) |
| 649 | sv = newRV(tmpRef); | |
| fb73857a PP |
650 | if (sv) |
| 651 | sv_2mortal(sv); | |
| 652 | else | |
| 3280af22 | 653 | sv = &PL_sv_undef; |
| fb73857a PP |
654 | XPUSHs(sv); |
| 655 | RETURN; | |
| 656 | } | |
| 657 | ||
| a0d0e21e | 658 | /* Pattern matching */ |
| 79072805 | 659 | |
| a0d0e21e | 660 | PP(pp_study) |
| 79072805 | 661 | { |
| 97aff369 | 662 | dVAR; dSP; dPOPss; |
| a0d0e21e LW |
663 | register unsigned char *s; |
| 664 | register I32 pos; | |
| 665 | register I32 ch; | |
| 666 | register I32 *sfirst; | |
| 667 | register I32 *snext; | |
| a0d0e21e LW |
668 | STRLEN len; |
| 669 | ||
| 3280af22 | 670 | if (sv == PL_lastscream) { |
| 1e422769 PP |
671 | if (SvSCREAM(sv)) |
| 672 | RETPUSHYES; | |
| 673 | } | |
| a4f4e906 NC |
674 | s = (unsigned char*)(SvPV(sv, len)); |
| 675 | pos = len; | |
| c9b9f909 | 676 | if (pos <= 0 || !SvPOK(sv) || SvUTF8(sv)) { |
| a4f4e906 NC |
677 | /* No point in studying a zero length string, and not safe to study |
| 678 | anything that doesn't appear to be a simple scalar (and hence might | |
| 679 | change between now and when the regexp engine runs without our set | |
| bd473224 | 680 | magic ever running) such as a reference to an object with overloaded |
| a4f4e906 NC |
681 | stringification. */ |
| 682 | RETPUSHNO; | |
| 683 | } | |
| 684 | ||
| 685 | if (PL_lastscream) { | |
| 686 | SvSCREAM_off(PL_lastscream); | |
| 687 | SvREFCNT_dec(PL_lastscream); | |
| c07a80fd | 688 | } |
| b37c2d43 | 689 | PL_lastscream = SvREFCNT_inc_simple(sv); |
| 1e422769 PP |
690 | |
| 691 | s = (unsigned char*)(SvPV(sv, len)); | |
| 692 | pos = len; | |
| 693 | if (pos <= 0) | |
| 694 | RETPUSHNO; | |
| 3280af22 NIS |
695 | if (pos > PL_maxscream) { |
| 696 | if (PL_maxscream < 0) { | |
| 697 | PL_maxscream = pos + 80; | |
| a02a5408 JC |
698 | Newx(PL_screamfirst, 256, I32); |
| 699 | Newx(PL_screamnext, PL_maxscream, I32); | |
| 79072805 LW |
700 | } |
| 701 | else { | |
| 3280af22 NIS |
702 | PL_maxscream = pos + pos / 4; |
| 703 | Renew(PL_screamnext, PL_maxscream, I32); | |
| 79072805 | 704 | } |
| 79072805 | 705 | } |
| a0d0e21e | 706 | |
| 3280af22 NIS |
707 | sfirst = PL_screamfirst; |
| 708 | snext = PL_screamnext; | |
| a0d0e21e LW |
709 | |
| 710 | if (!sfirst || !snext) | |
| cea2e8a9 | 711 | DIE(aTHX_ "do_study: out of memory"); |
| a0d0e21e LW |
712 | |
| 713 | for (ch = 256; ch; --ch) | |
| 714 | *sfirst++ = -1; | |
| 715 | sfirst -= 256; | |
| 716 | ||
| 717 | while (--pos >= 0) { | |
| 1b6737cc | 718 | register const I32 ch = s[pos]; |
| a0d0e21e LW |
719 | if (sfirst[ch] >= 0) |
| 720 | snext[pos] = sfirst[ch] - pos; | |
| 721 | else | |
| 722 | snext[pos] = -pos; | |
| 723 | sfirst[ch] = pos; | |
| 79072805 LW |
724 | } |
| 725 | ||
| c07a80fd | 726 | SvSCREAM_on(sv); |
| 14befaf4 | 727 | /* piggyback on m//g magic */ |
| c445ea15 | 728 | sv_magic(sv, NULL, PERL_MAGIC_regex_global, NULL, 0); |
| 1e422769 | 729 | RETPUSHYES; |
| 79072805 LW |
730 | } |
| 731 | ||
| a0d0e21e | 732 | PP(pp_trans) |
| 79072805 | 733 | { |
| 97aff369 | 734 | dVAR; dSP; dTARG; |
| a0d0e21e LW |
735 | SV *sv; |
| 736 | ||
| 533c011a | 737 | if (PL_op->op_flags & OPf_STACKED) |
| a0d0e21e | 738 | sv = POPs; |
| 59f00321 RGS |
739 | else if (PL_op->op_private & OPpTARGET_MY) |
| 740 | sv = GETTARGET; | |
| 79072805 | 741 | else { |
| 54b9620d | 742 | sv = DEFSV; |
| a0d0e21e | 743 | EXTEND(SP,1); |
| 79072805 | 744 | } |
| adbc6bb1 | 745 | TARG = sv_newmortal(); |
| 4757a243 | 746 | PUSHi(do_trans(sv)); |
| a0d0e21e | 747 | RETURN; |
| 79072805 LW |
748 | } |
| 749 | ||
| a0d0e21e | 750 | /* Lvalue operators. */ |
| 79072805 | 751 | |
| a0d0e21e LW |
752 | PP(pp_schop) |
| 753 | { | |
| 97aff369 | 754 | dVAR; dSP; dTARGET; |
| a0d0e21e LW |
755 | do_chop(TARG, TOPs); |
| 756 | SETTARG; | |
| 757 | RETURN; | |
| 79072805 LW |
758 | } |
| 759 | ||
| a0d0e21e | 760 | PP(pp_chop) |
| 79072805 | 761 | { |
| 97aff369 | 762 | dVAR; dSP; dMARK; dTARGET; dORIGMARK; |
| 2ec6af5f RG |
763 | while (MARK < SP) |
| 764 | do_chop(TARG, *++MARK); | |
| 765 | SP = ORIGMARK; | |
| b59aed67 | 766 | XPUSHTARG; |
| a0d0e21e | 767 | RETURN; |
| 79072805 LW |
768 | } |
| 769 | ||
| a0d0e21e | 770 | PP(pp_schomp) |
| 79072805 | 771 | { |
| 97aff369 | 772 | dVAR; dSP; dTARGET; |
| a0d0e21e LW |
773 | SETi(do_chomp(TOPs)); |
| 774 | RETURN; | |
| 79072805 LW |
775 | } |
| 776 | ||
| a0d0e21e | 777 | PP(pp_chomp) |
| 79072805 | 778 | { |
| 97aff369 | 779 | dVAR; dSP; dMARK; dTARGET; |
| a0d0e21e | 780 | register I32 count = 0; |
| 8ec5e241 | 781 | |
| a0d0e21e LW |
782 | while (SP > MARK) |
| 783 | count += do_chomp(POPs); | |
| b59aed67 | 784 | XPUSHi(count); |
| a0d0e21e | 785 | RETURN; |
| 79072805 LW |
786 | } |
| 787 | ||
| a0d0e21e LW |
788 | PP(pp_undef) |
| 789 | { | |
| 97aff369 | 790 | dVAR; dSP; |
| a0d0e21e LW |
791 | SV *sv; |
| 792 | ||
| 533c011a | 793 | if (!PL_op->op_private) { |
| 774d564b | 794 | EXTEND(SP, 1); |
| a0d0e21e | 795 | RETPUSHUNDEF; |
| 774d564b | 796 | } |
| 79072805 | 797 | |
| a0d0e21e LW |
798 | sv = POPs; |
| 799 | if (!sv) | |
| 800 | RETPUSHUNDEF; | |
| 85e6fe83 | 801 | |
| 765f542d | 802 | SV_CHECK_THINKFIRST_COW_DROP(sv); |
| 85e6fe83 | 803 | |
| a0d0e21e LW |
804 | switch (SvTYPE(sv)) { |
| 805 | case SVt_NULL: | |
| 806 | break; | |
| 807 | case SVt_PVAV: | |
| 808 | av_undef((AV*)sv); | |
| 809 | break; | |
| 810 | case SVt_PVHV: | |
| 811 | hv_undef((HV*)sv); | |
| 812 | break; | |
| 813 | case SVt_PVCV: | |
| 041457d9 | 814 | if (cv_const_sv((CV*)sv) && ckWARN(WARN_MISC)) |
| 9014280d | 815 | Perl_warner(aTHX_ packWARN(WARN_MISC), "Constant subroutine %s undefined", |
| 54310121 | 816 | CvANON((CV*)sv) ? "(anonymous)" : GvENAME(CvGV((CV*)sv))); |
| 5f66b61c | 817 | /* FALLTHROUGH */ |
| 9607fc9c | 818 | case SVt_PVFM: |
| 6fc92669 GS |
819 | { |
| 820 | /* let user-undef'd sub keep its identity */ | |
| 0bd48802 | 821 | GV* const gv = CvGV((CV*)sv); |
| 6fc92669 GS |
822 | cv_undef((CV*)sv); |
| 823 | CvGV((CV*)sv) = gv; | |
| 824 | } | |
| a0d0e21e | 825 | break; |
| 8e07c86e | 826 | case SVt_PVGV: |
| 44a8e56a | 827 | if (SvFAKE(sv)) |
| 3280af22 | 828 | SvSetMagicSV(sv, &PL_sv_undef); |
| 20408e3c GS |
829 | else { |
| 830 | GP *gp; | |
| 831 | gp_free((GV*)sv); | |
| a02a5408 | 832 | Newxz(gp, 1, GP); |
| 20408e3c | 833 | GvGP(sv) = gp_ref(gp); |
| 561b68a9 | 834 | GvSV(sv) = newSV(0); |
| 57843af0 | 835 | GvLINE(sv) = CopLINE(PL_curcop); |
| 20408e3c GS |
836 | GvEGV(sv) = (GV*)sv; |
| 837 | GvMULTI_on(sv); | |
| 838 | } | |
| 44a8e56a | 839 | break; |
| a0d0e21e | 840 | default: |
| b15aece3 | 841 | if (SvTYPE(sv) >= SVt_PV && SvPVX_const(sv) && SvLEN(sv)) { |
| 8bd4d4c5 | 842 | SvPV_free(sv); |
| c445ea15 | 843 | SvPV_set(sv, NULL); |
| 4633a7c4 | 844 | SvLEN_set(sv, 0); |
| a0d0e21e | 845 | } |
| 0c34ef67 | 846 | SvOK_off(sv); |
| 4633a7c4 | 847 | SvSETMAGIC(sv); |
| 79072805 | 848 | } |
| a0d0e21e LW |
849 | |
| 850 | RETPUSHUNDEF; | |
| 79072805 LW |
851 | } |
| 852 | ||
| a0d0e21e | 853 | PP(pp_predec) |
| 79072805 | 854 | { |
| 97aff369 | 855 | dVAR; dSP; |
| f39684df | 856 | if (SvTYPE(TOPs) >= SVt_PVGV && SvTYPE(TOPs) != SVt_PVLV) |
| d470f89e | 857 | DIE(aTHX_ PL_no_modify); |
| 3510b4a1 NC |
858 | if (!SvREADONLY(TOPs) && SvIOK_notUV(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) |
| 859 | && SvIVX(TOPs) != IV_MIN) | |
| 55497cff | 860 | { |
| 45977657 | 861 | SvIV_set(TOPs, SvIVX(TOPs) - 1); |
| 55497cff | 862 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
| 748a9306 LW |
863 | } |
| 864 | else | |
| 865 | sv_dec(TOPs); | |
| a0d0e21e LW |
866 | SvSETMAGIC(TOPs); |
| 867 | return NORMAL; | |
| 868 | } | |
| 79072805 | 869 | |
| a0d0e21e LW |
870 | PP(pp_postinc) |
| 871 | { | |
| 97aff369 | 872 | dVAR; dSP; dTARGET; |
| f39684df | 873 | if (SvTYPE(TOPs) >= SVt_PVGV && SvTYPE(TOPs) != SVt_PVLV) |
| d470f89e | 874 | DIE(aTHX_ PL_no_modify); |
| a0d0e21e | 875 | sv_setsv(TARG, TOPs); |
| 3510b4a1 NC |
876 | if (!SvREADONLY(TOPs) && SvIOK_notUV(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) |
| 877 | && SvIVX(TOPs) != IV_MAX) | |
| 55497cff | 878 | { |
| 45977657 | 879 | SvIV_set(TOPs, SvIVX(TOPs) + 1); |
| 55497cff | 880 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
| 748a9306 LW |
881 | } |
| 882 | else | |
| 883 | sv_inc(TOPs); | |
| a0d0e21e | 884 | SvSETMAGIC(TOPs); |
| 1e54a23f | 885 | /* special case for undef: see thread at 2003-03/msg00536.html in archive */ |
| a0d0e21e LW |
886 | if (!SvOK(TARG)) |
| 887 | sv_setiv(TARG, 0); | |
| 888 | SETs(TARG); | |
| 889 | return NORMAL; | |
| 890 | } | |
| 79072805 | 891 | |
| a0d0e21e LW |
892 | PP(pp_postdec) |
| 893 | { | |
| 97aff369 | 894 | dVAR; dSP; dTARGET; |
| f39684df | 895 | if (SvTYPE(TOPs) >= SVt_PVGV && SvTYPE(TOPs) != SVt_PVLV) |
| d470f89e | 896 | DIE(aTHX_ PL_no_modify); |
| a0d0e21e | 897 | sv_setsv(TARG, TOPs); |
| 3510b4a1 NC |
898 | if (!SvREADONLY(TOPs) && SvIOK_notUV(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) |
| 899 | && SvIVX(TOPs) != IV_MIN) | |
| 55497cff | 900 | { |
| 45977657 | 901 | SvIV_set(TOPs, SvIVX(TOPs) - 1); |
| 55497cff | 902 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
| 748a9306 LW |
903 | } |
| 904 | else | |
| 905 | sv_dec(TOPs); | |
| a0d0e21e LW |
906 | SvSETMAGIC(TOPs); |
| 907 | SETs(TARG); | |
| 908 | return NORMAL; | |
| 909 | } | |
| 79072805 | 910 | |
| a0d0e21e LW |
911 | /* Ordinary operators. */ |
| 912 | ||
| 913 | PP(pp_pow) | |
| 914 | { | |
| 97aff369 | 915 | dVAR; dSP; dATARGET; |
| 58d76dfd | 916 | #ifdef PERL_PRESERVE_IVUV |
| 52a96ae6 HS |
917 | bool is_int = 0; |
| 918 | #endif | |
| 919 | tryAMAGICbin(pow,opASSIGN); | |
| 920 | #ifdef PERL_PRESERVE_IVUV | |
| 921 | /* For integer to integer power, we do the calculation by hand wherever | |
| 922 | we're sure it is safe; otherwise we call pow() and try to convert to | |
| 923 | integer afterwards. */ | |
| 58d76dfd | 924 | { |
| 900658e3 PF |
925 | SvIV_please(TOPs); |
| 926 | if (SvIOK(TOPs)) { | |
| 927 | SvIV_please(TOPm1s); | |
| 928 | if (SvIOK(TOPm1s)) { | |
| 929 | UV power; | |
| 930 | bool baseuok; | |
| 931 | UV baseuv; | |
| 932 | ||
| 933 | if (SvUOK(TOPs)) { | |
| 934 | power = SvUVX(TOPs); | |
| 935 | } else { | |
| 936 | const IV iv = SvIVX(TOPs); | |
| 937 | if (iv >= 0) { | |
| 938 | power = iv; | |
| 939 | } else { | |
| 940 | goto float_it; /* Can't do negative powers this way. */ | |
| 941 | } | |
| 942 | } | |
| 943 | ||
| 944 | baseuok = SvUOK(TOPm1s); | |
| 945 | if (baseuok) { | |
| 946 | baseuv = SvUVX(TOPm1s); | |
| 947 | } else { | |
| 948 | const IV iv = SvIVX(TOPm1s); | |
| 949 | if (iv >= 0) { | |
| 950 | baseuv = iv; | |
| 951 | baseuok = TRUE; /* effectively it's a UV now */ | |
| 952 | } else { | |
| 953 | baseuv = -iv; /* abs, baseuok == false records sign */ | |
| 954 | } | |
| 955 | } | |
| 52a96ae6 HS |
956 | /* now we have integer ** positive integer. */ |
| 957 | is_int = 1; | |
| 958 | ||
| 959 | /* foo & (foo - 1) is zero only for a power of 2. */ | |
| 58d76dfd | 960 | if (!(baseuv & (baseuv - 1))) { |
| 52a96ae6 | 961 | /* We are raising power-of-2 to a positive integer. |
| 58d76dfd JH |
962 | The logic here will work for any base (even non-integer |
| 963 | bases) but it can be less accurate than | |
| 964 | pow (base,power) or exp (power * log (base)) when the | |
| 965 | intermediate values start to spill out of the mantissa. | |
| 966 | With powers of 2 we know this can't happen. | |
| 967 | And powers of 2 are the favourite thing for perl | |
| 968 | programmers to notice ** not doing what they mean. */ | |
| 969 | NV result = 1.0; | |
| 970 | NV base = baseuok ? baseuv : -(NV)baseuv; | |
| 900658e3 PF |
971 | |
| 972 | if (power & 1) { | |
| 973 | result *= base; | |
| 974 | } | |
| 975 | while (power >>= 1) { | |
| 976 | base *= base; | |
| 977 | if (power & 1) { | |
| 978 | result *= base; | |
| 979 | } | |
| 980 | } | |
| 58d76dfd JH |
981 | SP--; |
| 982 | SETn( result ); | |
| 52a96ae6 | 983 | SvIV_please(TOPs); |
| 58d76dfd | 984 | RETURN; |
| 52a96ae6 HS |
985 | } else { |
| 986 | register unsigned int highbit = 8 * sizeof(UV); | |
| 900658e3 PF |
987 | register unsigned int diff = 8 * sizeof(UV); |
| 988 | while (diff >>= 1) { | |
| 989 | highbit -= diff; | |
| 990 | if (baseuv >> highbit) { | |
| 991 | highbit += diff; | |
| 992 | } | |
| 52a96ae6 HS |
993 | } |
| 994 | /* we now have baseuv < 2 ** highbit */ | |
| 995 | if (power * highbit <= 8 * sizeof(UV)) { | |
| 996 | /* result will definitely fit in UV, so use UV math | |
| 997 | on same algorithm as above */ | |
| 998 | register UV result = 1; | |
| 999 | register UV base = baseuv; | |
| 900658e3 PF |
1000 | const bool odd_power = (bool)(power & 1); |
| 1001 | if (odd_power) { | |
| 1002 | result *= base; | |
| 1003 | } | |
| 1004 | while (power >>= 1) { | |
| 1005 | base *= base; | |
| 1006 | if (power & 1) { | |
| 52a96ae6 | 1007 | result *= base; |
| 52a96ae6 HS |
1008 | } |
| 1009 | } | |
| 1010 | SP--; | |
| 0615a994 | 1011 | if (baseuok || !odd_power) |
| 52a96ae6 HS |
1012 | /* answer is positive */ |
| 1013 | SETu( result ); | |
| 1014 | else if (result <= (UV)IV_MAX) | |
| 1015 | /* answer negative, fits in IV */ | |
| 1016 | SETi( -(IV)result ); | |
| 1017 | else if (result == (UV)IV_MIN) | |
| 1018 | /* 2's complement assumption: special case IV_MIN */ | |
| 1019 | SETi( IV_MIN ); | |
| 1020 | else | |
| 1021 | /* answer negative, doesn't fit */ | |
| 1022 | SETn( -(NV)result ); | |
| 1023 | RETURN; | |
| 1024 | } | |
| 1025 | } | |
| 1026 | } | |
| 1027 | } | |
| 58d76dfd | 1028 | } |
| 52a96ae6 | 1029 | float_it: |
| 58d76dfd | 1030 | #endif |
| a0d0e21e | 1031 | { |
| 52a96ae6 | 1032 | dPOPTOPnnrl; |
| 3aaeb624 JA |
1033 | |
| 1034 | #if defined(USE_LONG_DOUBLE) && defined(HAS_AIX_POWL_NEG_BASE_BUG) | |
| 1035 | /* | |
| 1036 | We are building perl with long double support and are on an AIX OS | |
| 1037 | afflicted with a powl() function that wrongly returns NaNQ for any | |
| 1038 | negative base. This was reported to IBM as PMR #23047-379 on | |
| 1039 | 03/06/2006. The problem exists in at least the following versions | |
| 1040 | of AIX and the libm fileset, and no doubt others as well: | |
| 1041 | ||
| 1042 | AIX 4.3.3-ML10 bos.adt.libm 4.3.3.50 | |
| 1043 | AIX 5.1.0-ML04 bos.adt.libm 5.1.0.29 | |
| 1044 | AIX 5.2.0 bos.adt.libm 5.2.0.85 | |
| 1045 | ||
| 1046 | So, until IBM fixes powl(), we provide the following workaround to | |
| 1047 | handle the problem ourselves. Our logic is as follows: for | |
| 1048 | negative bases (left), we use fmod(right, 2) to check if the | |
| 1049 | exponent is an odd or even integer: | |
| 1050 | ||
| 1051 | - if odd, powl(left, right) == -powl(-left, right) | |
| 1052 | - if even, powl(left, right) == powl(-left, right) | |
| 1053 | ||
| 1054 | If the exponent is not an integer, the result is rightly NaNQ, so | |
| 1055 | we just return that (as NV_NAN). | |
| 1056 | */ | |
| 1057 | ||
| 1058 | if (left < 0.0) { | |
| 1059 | NV mod2 = Perl_fmod( right, 2.0 ); | |
| 1060 | if (mod2 == 1.0 || mod2 == -1.0) { /* odd integer */ | |
| 1061 | SETn( -Perl_pow( -left, right) ); | |
| 1062 | } else if (mod2 == 0.0) { /* even integer */ | |
| 1063 | SETn( Perl_pow( -left, right) ); | |
| 1064 | } else { /* fractional power */ | |
| 1065 | SETn( NV_NAN ); | |
| 1066 | } | |
| 1067 | } else { | |
| 1068 | SETn( Perl_pow( left, right) ); | |
| 1069 | } | |
| 1070 | #else | |
| 52a96ae6 | 1071 | SETn( Perl_pow( left, right) ); |
| 3aaeb624 JA |
1072 | #endif /* HAS_AIX_POWL_NEG_BASE_BUG */ |
| 1073 | ||
| 52a96ae6 HS |
1074 | #ifdef PERL_PRESERVE_IVUV |
| 1075 | if (is_int) | |
| 1076 | SvIV_please(TOPs); | |
| 1077 | #endif | |
| 1078 | RETURN; | |
| 93a17b20 | 1079 | } |
| a0d0e21e LW |
1080 | } |
| 1081 | ||
| 1082 | PP(pp_multiply) | |
| 1083 | { | |
| 97aff369 | 1084 | dVAR; dSP; dATARGET; tryAMAGICbin(mult,opASSIGN); |
| 28e5dec8 JH |
1085 | #ifdef PERL_PRESERVE_IVUV |
| 1086 | SvIV_please(TOPs); | |
| 1087 | if (SvIOK(TOPs)) { | |
| 1088 | /* Unless the left argument is integer in range we are going to have to | |
| 1089 | use NV maths. Hence only attempt to coerce the right argument if | |
| 1090 | we know the left is integer. */ | |
| 1091 | /* Left operand is defined, so is it IV? */ | |
| 1092 | SvIV_please(TOPm1s); | |
| 1093 | if (SvIOK(TOPm1s)) { | |
| 1094 | bool auvok = SvUOK(TOPm1s); | |
| 1095 | bool buvok = SvUOK(TOPs); | |
| 1096 | const UV topmask = (~ (UV)0) << (4 * sizeof (UV)); | |
| 1097 | const UV botmask = ~((~ (UV)0) << (4 * sizeof (UV))); | |
| 1098 | UV alow; | |
| 1099 | UV ahigh; | |
| 1100 | UV blow; | |
| 1101 | UV bhigh; | |
| 1102 | ||
| 1103 | if (auvok) { | |
| 1104 | alow = SvUVX(TOPm1s); | |
| 1105 | } else { | |
| 1b6737cc | 1106 | const IV aiv = SvIVX(TOPm1s); |
| 28e5dec8 JH |
1107 | if (aiv >= 0) { |
| 1108 | alow = aiv; | |
| 1109 | auvok = TRUE; /* effectively it's a UV now */ | |
| 1110 | } else { | |
| 1111 | alow = -aiv; /* abs, auvok == false records sign */ | |
| 1112 | } | |
| 1113 | } | |
| 1114 | if (buvok) { | |
| 1115 | blow = SvUVX(TOPs); | |
| 1116 | } else { | |
| 1b6737cc | 1117 | const IV biv = SvIVX(TOPs); |
| 28e5dec8 JH |
1118 | if (biv >= 0) { |
| 1119 | blow = biv; | |
| 1120 | buvok = TRUE; /* effectively it's a UV now */ | |
| 1121 | } else { | |
| 1122 | blow = -biv; /* abs, buvok == false records sign */ | |
| 1123 | } | |
| 1124 | } | |
| 1125 | ||
| 1126 | /* If this does sign extension on unsigned it's time for plan B */ | |
| 1127 | ahigh = alow >> (4 * sizeof (UV)); | |
| 1128 | alow &= botmask; | |
| 1129 | bhigh = blow >> (4 * sizeof (UV)); | |
| 1130 | blow &= botmask; | |
| 1131 | if (ahigh && bhigh) { | |
| 6f207bd3 | 1132 | NOOP; |
| 28e5dec8 JH |
1133 | /* eg 32 bit is at least 0x10000 * 0x10000 == 0x100000000 |
| 1134 | which is overflow. Drop to NVs below. */ | |
| 1135 | } else if (!ahigh && !bhigh) { | |
| 1136 | /* eg 32 bit is at most 0xFFFF * 0xFFFF == 0xFFFE0001 | |
| 1137 | so the unsigned multiply cannot overflow. */ | |
| c445ea15 | 1138 | const UV product = alow * blow; |
| 28e5dec8 JH |
1139 | if (auvok == buvok) { |
| 1140 | /* -ve * -ve or +ve * +ve gives a +ve result. */ | |
| 1141 | SP--; | |
| 1142 | SETu( product ); | |
| 1143 | RETURN; | |
| 1144 | } else if (product <= (UV)IV_MIN) { | |
| 1145 | /* 2s complement assumption that (UV)-IV_MIN is correct. */ | |
| 1146 | /* -ve result, which could overflow an IV */ | |
| 1147 | SP--; | |
| 25716404 | 1148 | SETi( -(IV)product ); |
| 28e5dec8 JH |
1149 | RETURN; |
| 1150 | } /* else drop to NVs below. */ | |
| 1151 | } else { | |
| 1152 | /* One operand is large, 1 small */ | |
| 1153 | UV product_middle; | |
| 1154 | if (bhigh) { | |
| 1155 | /* swap the operands */ | |
| 1156 | ahigh = bhigh; | |
| 1157 | bhigh = blow; /* bhigh now the temp var for the swap */ | |
| 1158 | blow = alow; | |
| 1159 | alow = bhigh; | |
| 1160 | } | |
| 1161 | /* now, ((ahigh * blow) << half_UV_len) + (alow * blow) | |
| 1162 | multiplies can't overflow. shift can, add can, -ve can. */ | |
| 1163 | product_middle = ahigh * blow; | |
| 1164 | if (!(product_middle & topmask)) { | |
| 1165 | /* OK, (ahigh * blow) won't lose bits when we shift it. */ | |
| 1166 | UV product_low; | |
| 1167 | product_middle <<= (4 * sizeof (UV)); | |
| 1168 | product_low = alow * blow; | |
| 1169 | ||
| 1170 | /* as for pp_add, UV + something mustn't get smaller. | |
| 1171 | IIRC ANSI mandates this wrapping *behaviour* for | |
| 1172 | unsigned whatever the actual representation*/ | |
| 1173 | product_low += product_middle; | |
| 1174 | if (product_low >= product_middle) { | |
| 1175 | /* didn't overflow */ | |
| 1176 | if (auvok == buvok) { | |
| 1177 | /* -ve * -ve or +ve * +ve gives a +ve result. */ | |
| 1178 | SP--; | |
| 1179 | SETu( product_low ); | |
| 1180 | RETURN; | |
| 1181 | } else if (product_low <= (UV)IV_MIN) { | |
| 1182 | /* 2s complement assumption again */ | |
| 1183 | /* -ve result, which could overflow an IV */ | |
| 1184 | SP--; | |
| 25716404 | 1185 | SETi( -(IV)product_low ); |
| 28e5dec8 JH |
1186 | RETURN; |
| 1187 | } /* else drop to NVs below. */ | |
| 1188 | } | |
| 1189 | } /* product_middle too large */ | |
| 1190 | } /* ahigh && bhigh */ | |
| 1191 | } /* SvIOK(TOPm1s) */ | |
| 1192 | } /* SvIOK(TOPs) */ | |
| 1193 | #endif | |
| a0d0e21e LW |
1194 | { |
| 1195 | dPOPTOPnnrl; | |
| 1196 | SETn( left * right ); | |
| 1197 | RETURN; | |
| 79072805 | 1198 | } |
| a0d0e21e LW |
1199 | } |
| 1200 | ||
| 1201 | PP(pp_divide) | |
| 1202 | { | |
| 97aff369 | 1203 | dVAR; dSP; dATARGET; tryAMAGICbin(div,opASSIGN); |
| 5479d192 | 1204 | /* Only try to do UV divide first |
| 68795e93 | 1205 | if ((SLOPPYDIVIDE is true) or |
| 5479d192 NC |
1206 | (PERL_PRESERVE_IVUV is true and one or both SV is a UV too large |
| 1207 | to preserve)) | |
| 1208 | The assumption is that it is better to use floating point divide | |
| 1209 | whenever possible, only doing integer divide first if we can't be sure. | |
| 1210 | If NV_PRESERVES_UV is true then we know at compile time that no UV | |
| 1211 | can be too large to preserve, so don't need to compile the code to | |
| 1212 | test the size of UVs. */ | |
| 1213 | ||
| a0d0e21e | 1214 | #ifdef SLOPPYDIVIDE |
| 5479d192 NC |
1215 | # define PERL_TRY_UV_DIVIDE |
| 1216 | /* ensure that 20./5. == 4. */ | |
| a0d0e21e | 1217 | #else |
| 5479d192 NC |
1218 | # ifdef PERL_PRESERVE_IVUV |
| 1219 | # ifndef NV_PRESERVES_UV | |
| 1220 | # define PERL_TRY_UV_DIVIDE | |
| 1221 | # endif | |
| 1222 | # endif | |
| a0d0e21e | 1223 | #endif |
| 5479d192 NC |
1224 | |
| 1225 | #ifdef PERL_TRY_UV_DIVIDE | |
| 1226 | SvIV_please(TOPs); | |
| 1227 | if (SvIOK(TOPs)) { | |
| 1228 | SvIV_please(TOPm1s); | |
| 1229 | if (SvIOK(TOPm1s)) { | |
| 1230 | bool left_non_neg = SvUOK(TOPm1s); | |
| 1231 | bool right_non_neg = SvUOK(TOPs); | |
| 1232 | UV left; | |
| 1233 | UV right; | |
| 1234 | ||
| 1235 | if (right_non_neg) { | |
| 1236 | right = SvUVX(TOPs); | |
| 1237 | } | |
| 1238 | else { | |
| 1b6737cc | 1239 | const IV biv = SvIVX(TOPs); |
| 5479d192 NC |
1240 | if (biv >= 0) { |
| 1241 | right = biv; | |
| 1242 | right_non_neg = TRUE; /* effectively it's a UV now */ | |
| 1243 | } | |
| 1244 | else { | |
| 1245 | right = -biv; | |
| 1246 | } | |
| 1247 | } | |
| 1248 | /* historically undef()/0 gives a "Use of uninitialized value" | |
| 1249 | warning before dieing, hence this test goes here. | |
| 1250 | If it were immediately before the second SvIV_please, then | |
| 1251 | DIE() would be invoked before left was even inspected, so | |
| 1252 | no inpsection would give no warning. */ | |
| 1253 | if (right == 0) | |
| 1254 | DIE(aTHX_ "Illegal division by zero"); | |
| 1255 | ||
| 1256 | if (left_non_neg) { | |
| 1257 | left = SvUVX(TOPm1s); | |
| 1258 | } | |
| 1259 | else { | |
| 1b6737cc | 1260 | const IV aiv = SvIVX(TOPm1s); |
| 5479d192 NC |
1261 | if (aiv >= 0) { |
| 1262 | left = aiv; | |
| 1263 | left_non_neg = TRUE; /* effectively it's a UV now */ | |
| 1264 | } | |
| 1265 | else { | |
| 1266 | left = -aiv; | |
| 1267 | } | |
| 1268 | } | |
| 1269 | ||
| 1270 | if (left >= right | |
| 1271 | #ifdef SLOPPYDIVIDE | |
| 1272 | /* For sloppy divide we always attempt integer division. */ | |
| 1273 | #else | |
| 1274 | /* Otherwise we only attempt it if either or both operands | |
| 1275 | would not be preserved by an NV. If both fit in NVs | |
| 0c2ee62a NC |
1276 | we fall through to the NV divide code below. However, |
| 1277 | as left >= right to ensure integer result here, we know that | |
| 1278 | we can skip the test on the right operand - right big | |
| 1279 | enough not to be preserved can't get here unless left is | |
| 1280 | also too big. */ | |
| 1281 | ||
| 1282 | && (left > ((UV)1 << NV_PRESERVES_UV_BITS)) | |
| 5479d192 NC |
1283 | #endif |
| 1284 | ) { | |
| 1285 | /* Integer division can't overflow, but it can be imprecise. */ | |
| 1b6737cc | 1286 | const UV result = left / right; |
| 5479d192 NC |
1287 | if (result * right == left) { |
| 1288 | SP--; /* result is valid */ | |
| 1289 | if (left_non_neg == right_non_neg) { | |
| 1290 | /* signs identical, result is positive. */ | |
| 1291 | SETu( result ); | |
| 1292 | RETURN; | |
| 1293 | } | |
| 1294 | /* 2s complement assumption */ | |
| 1295 | if (result <= (UV)IV_MIN) | |
| 91f3b821 | 1296 | SETi( -(IV)result ); |
| 5479d192 NC |
1297 | else { |
| 1298 | /* It's exact but too negative for IV. */ | |
| 1299 | SETn( -(NV)result ); | |
| 1300 | } | |
| 1301 | RETURN; | |
| 1302 | } /* tried integer divide but it was not an integer result */ | |
| 32fdb065 | 1303 | } /* else (PERL_ABS(result) < 1.0) or (both UVs in range for NV) */ |
| 5479d192 NC |
1304 | } /* left wasn't SvIOK */ |
| 1305 | } /* right wasn't SvIOK */ | |
| 1306 | #endif /* PERL_TRY_UV_DIVIDE */ | |
| 1307 | { | |
| 1308 | dPOPPOPnnrl; | |
| 1309 | if (right == 0.0) | |
| 1310 | DIE(aTHX_ "Illegal division by zero"); | |
| 1311 | PUSHn( left / right ); | |
| 1312 | RETURN; | |
| 79072805 | 1313 | } |
| a0d0e21e LW |
1314 | } |
| 1315 | ||
| 1316 | PP(pp_modulo) | |
| 1317 | { | |
| 97aff369 | 1318 | dVAR; dSP; dATARGET; tryAMAGICbin(modulo,opASSIGN); |
| a0d0e21e | 1319 | { |
| 9c5ffd7c JH |
1320 | UV left = 0; |
| 1321 | UV right = 0; | |
| dc656993 JH |
1322 | bool left_neg = FALSE; |
| 1323 | bool right_neg = FALSE; | |
| e2c88acc NC |
1324 | bool use_double = FALSE; |
| 1325 | bool dright_valid = FALSE; | |
| 9c5ffd7c JH |
1326 | NV dright = 0.0; |
| 1327 | NV dleft = 0.0; | |
| 787eafbd | 1328 | |
| e2c88acc NC |
1329 | SvIV_please(TOPs); |
| 1330 | if (SvIOK(TOPs)) { | |
| 1331 | right_neg = !SvUOK(TOPs); | |
| 1332 | if (!right_neg) { | |
| 1333 | right = SvUVX(POPs); | |
| 1334 | } else { | |
| 1b6737cc | 1335 | const IV biv = SvIVX(POPs); |
| e2c88acc NC |
1336 | if (biv >= 0) { |
| 1337 | right = biv; | |
| 1338 | right_neg = FALSE; /* effectively it's a UV now */ | |
| 1339 | } else { | |
| 1340 | right = -biv; | |
| 1341 | } | |
| 1342 | } | |
| 1343 | } | |
| 1344 | else { | |
| 787eafbd | 1345 | dright = POPn; |
| 787eafbd IZ |
1346 | right_neg = dright < 0; |
| 1347 | if (right_neg) | |
| 1348 | dright = -dright; | |
| e2c88acc NC |
1349 | if (dright < UV_MAX_P1) { |
| 1350 | right = U_V(dright); | |
| 1351 | dright_valid = TRUE; /* In case we need to use double below. */ | |
| 1352 | } else { | |
| 1353 | use_double = TRUE; | |
| 1354 | } | |
| 787eafbd | 1355 | } |
| a0d0e21e | 1356 | |
| e2c88acc NC |
1357 | /* At this point use_double is only true if right is out of range for |
| 1358 | a UV. In range NV has been rounded down to nearest UV and | |
| 1359 | use_double false. */ | |
| 1360 | SvIV_please(TOPs); | |
| 1361 | if (!use_double && SvIOK(TOPs)) { | |
| 1362 | if (SvIOK(TOPs)) { | |
| 1363 | left_neg = !SvUOK(TOPs); | |
| 1364 | if (!left_neg) { | |
| 1365 | left = SvUVX(POPs); | |
| 1366 | } else { | |
| 0bd48802 | 1367 | const IV aiv = SvIVX(POPs); |
| e2c88acc NC |
1368 | if (aiv >= 0) { |
| 1369 | left = aiv; | |
| 1370 | left_neg = FALSE; /* effectively it's a UV now */ | |
| 1371 | } else { | |
| 1372 | left = -aiv; | |
| 1373 | } | |
| 1374 | } | |
| 1375 | } | |
| 1376 | } | |
| 787eafbd IZ |
1377 | else { |
| 1378 | dleft = POPn; | |
| 787eafbd IZ |
1379 | left_neg = dleft < 0; |
| 1380 | if (left_neg) | |
| 1381 | dleft = -dleft; | |
| 68dc0745 | 1382 | |
| e2c88acc NC |
1383 | /* This should be exactly the 5.6 behaviour - if left and right are |
| 1384 | both in range for UV then use U_V() rather than floor. */ | |
| 1385 | if (!use_double) { | |
| 1386 | if (dleft < UV_MAX_P1) { | |
| 1387 | /* right was in range, so is dleft, so use UVs not double. | |
| 1388 | */ | |
| 1389 | left = U_V(dleft); | |
| 1390 | } | |
| 1391 | /* left is out of range for UV, right was in range, so promote | |
| 1392 | right (back) to double. */ | |
| 1393 | else { | |
| 1394 | /* The +0.5 is used in 5.6 even though it is not strictly | |
| 1395 | consistent with the implicit +0 floor in the U_V() | |
| 1396 | inside the #if 1. */ | |
| 1397 | dleft = Perl_floor(dleft + 0.5); | |
| 1398 | use_double = TRUE; | |
| 1399 | if (dright_valid) | |
| 1400 | dright = Perl_floor(dright + 0.5); | |
| 1401 | else | |
| 1402 | dright = right; | |
| 1403 | } | |
| 1404 | } | |
| 1405 | } | |
| 787eafbd | 1406 | if (use_double) { |
| 65202027 | 1407 | NV dans; |
| 787eafbd | 1408 | |
| 787eafbd | 1409 | if (!dright) |
| cea2e8a9 | 1410 | DIE(aTHX_ "Illegal modulus zero"); |
| 787eafbd | 1411 | |
| 65202027 | 1412 | dans = Perl_fmod(dleft, dright); |
| 787eafbd IZ |
1413 | if ((left_neg != right_neg) && dans) |
| 1414 | dans = dright - dans; | |
| 1415 | if (right_neg) | |
| 1416 | dans = -dans; | |
| 1417 | sv_setnv(TARG, dans); | |
| 1418 | } | |
| 1419 | else { | |
| 1420 | UV ans; | |
| 1421 | ||
| 787eafbd | 1422 | if (!right) |
| cea2e8a9 | 1423 | DIE(aTHX_ "Illegal modulus zero"); |
| 787eafbd IZ |
1424 | |
| 1425 | ans = left % right; | |
| 1426 | if ((left_neg != right_neg) && ans) | |
| 1427 | ans = right - ans; | |
| 1428 | if (right_neg) { | |
| 1429 | /* XXX may warn: unary minus operator applied to unsigned type */ | |
| 1430 | /* could change -foo to be (~foo)+1 instead */ | |
| 1431 | if (ans <= ~((UV)IV_MAX)+1) | |
| 1432 | sv_setiv(TARG, ~ans+1); | |
| 1433 | else | |
| 65202027 | 1434 | sv_setnv(TARG, -(NV)ans); |
| 787eafbd IZ |
1435 | } |
| 1436 | else | |
| 1437 | sv_setuv(TARG, ans); | |
| 1438 | } | |
| 1439 | PUSHTARG; | |
| 1440 | RETURN; | |
| 79072805 | 1441 | } |
| a0d0e21e | 1442 | } |
| 79072805 | 1443 | |
| a0d0e21e LW |
1444 | PP(pp_repeat) |
| 1445 | { | |
| 97aff369 | 1446 | dVAR; dSP; dATARGET; tryAMAGICbin(repeat,opASSIGN); |
| 748a9306 | 1447 | { |
| 2b573ace JH |
1448 | register IV count; |
| 1449 | dPOPss; | |
| 5b295bef | 1450 | SvGETMAGIC(sv); |
| 2b573ace JH |
1451 | if (SvIOKp(sv)) { |
| 1452 | if (SvUOK(sv)) { | |
| 1b6737cc | 1453 | const UV uv = SvUV(sv); |
| 2b573ace JH |
1454 | if (uv > IV_MAX) |
| 1455 | count = IV_MAX; /* The best we can do? */ | |
| 1456 | else | |
| 1457 | count = uv; | |
| 1458 | } else { | |
| 0bd48802 | 1459 | const IV iv = SvIV(sv); |
| 2b573ace JH |
1460 | if (iv < 0) |
| 1461 | count = 0; | |
| 1462 | else | |
| 1463 | count = iv; | |
| 1464 | } | |
| 1465 | } | |
| 1466 | else if (SvNOKp(sv)) { | |
| 1b6737cc | 1467 | const NV nv = SvNV(sv); |
| 2b573ace JH |
1468 | if (nv < 0.0) |
| 1469 | count = 0; | |
| 1470 | else | |
| 1471 | count = (IV)nv; | |
| 1472 | } | |
| 1473 | else | |
| 1474 | count = SvIVx(sv); | |
| 533c011a | 1475 | if (GIMME == G_ARRAY && PL_op->op_private & OPpREPEAT_DOLIST) { |
| a0d0e21e | 1476 | dMARK; |
| 0bd48802 AL |
1477 | static const char oom_list_extend[] = "Out of memory during list extend"; |
| 1478 | const I32 items = SP - MARK; | |
| 1479 | const I32 max = items * count; | |
| 79072805 | 1480 | |
| 2b573ace JH |
1481 | MEM_WRAP_CHECK_1(max, SV*, oom_list_extend); |
| 1482 | /* Did the max computation overflow? */ | |
| 27d5b266 | 1483 | if (items > 0 && max > 0 && (max < items || max < count)) |
| 2b573ace | 1484 | Perl_croak(aTHX_ oom_list_extend); |
| a0d0e21e LW |
1485 | MEXTEND(MARK, max); |
| 1486 | if (count > 1) { | |
| 1487 | while (SP > MARK) { | |
| 976c8a39 JH |
1488 | #if 0 |
| 1489 | /* This code was intended to fix 20010809.028: | |
| 1490 | ||
| 1491 | $x = 'abcd'; | |
| 1492 | for (($x =~ /./g) x 2) { | |
| 1493 | print chop; # "abcdabcd" expected as output. | |
| 1494 | } | |
| 1495 | ||
| 1496 | * but that change (#11635) broke this code: | |
| 1497 | ||
| 1498 | $x = [("foo")x2]; # only one "foo" ended up in the anonlist. | |
| 1499 | ||
| 1500 | * I can't think of a better fix that doesn't introduce | |
| 1501 | * an efficiency hit by copying the SVs. The stack isn't | |
| 1502 | * refcounted, and mortalisation obviously doesn't | |
| 1503 | * Do The Right Thing when the stack has more than | |
| 1504 | * one pointer to the same mortal value. | |
| 1505 | * .robin. | |
| 1506 | */ | |
| e30acc16 RH |
1507 | if (*SP) { |
| 1508 | *SP = sv_2mortal(newSVsv(*SP)); | |
| 1509 | SvREADONLY_on(*SP); | |
| 1510 | } | |
| 976c8a39 JH |
1511 | #else |
| 1512 | if (*SP) | |
| 1513 | SvTEMP_off((*SP)); | |
| 1514 | #endif | |
| a0d0e21e | 1515 | SP--; |
| 79072805 | 1516 | } |
| a0d0e21e LW |
1517 | MARK++; |
| 1518 | repeatcpy((char*)(MARK + items), (char*)MARK, | |
| 1519 | items * sizeof(SV*), count - 1); | |
| 1520 | SP += max; | |
| 79072805 | 1521 | } |
| a0d0e21e LW |
1522 | else if (count <= 0) |
| 1523 | SP -= items; | |
| 79072805 | 1524 | } |
| a0d0e21e | 1525 | else { /* Note: mark already snarfed by pp_list */ |
| 0bd48802 | 1526 | SV * const tmpstr = POPs; |
| a0d0e21e | 1527 | STRLEN len; |
| 9b877dbb | 1528 | bool isutf; |
| 2b573ace JH |
1529 | static const char oom_string_extend[] = |
| 1530 | "Out of memory during string extend"; | |
| a0d0e21e | 1531 | |
| a0d0e21e LW |
1532 | SvSetSV(TARG, tmpstr); |
| 1533 | SvPV_force(TARG, len); | |
| 9b877dbb | 1534 | isutf = DO_UTF8(TARG); |
| 8ebc5c01 PP |
1535 | if (count != 1) { |
| 1536 | if (count < 1) | |
| 1537 | SvCUR_set(TARG, 0); | |
| 1538 | else { | |
| c445ea15 | 1539 | const STRLEN max = (UV)count * len; |
| 2b573ace JH |
1540 | if (len > ((MEM_SIZE)~0)/count) |
| 1541 | Perl_croak(aTHX_ oom_string_extend); | |
| 1542 | MEM_WRAP_CHECK_1(max, char, oom_string_extend); | |
| 8569b9dc | 1543 | SvGROW(TARG, max + 1); |
| a0d0e21e | 1544 | repeatcpy(SvPVX(TARG) + len, SvPVX(TARG), len, count - 1); |
| b162af07 | 1545 | SvCUR_set(TARG, SvCUR(TARG) * count); |
| 7a4c00b4 | 1546 | } |
| a0d0e21e | 1547 | *SvEND(TARG) = '\0'; |
| a0d0e21e | 1548 | } |
| dfcb284a GS |
1549 | if (isutf) |
| 1550 | (void)SvPOK_only_UTF8(TARG); | |
| 1551 | else | |
| 1552 | (void)SvPOK_only(TARG); | |
| b80b6069 RH |
1553 | |
| 1554 | if (PL_op->op_private & OPpREPEAT_DOLIST) { | |
| 1555 | /* The parser saw this as a list repeat, and there | |
| 1556 | are probably several items on the stack. But we're | |
| 1557 | in scalar context, and there's no pp_list to save us | |
| 1558 | now. So drop the rest of the items -- robin@kitsite.com | |
| 1559 | */ | |
| 1560 | dMARK; | |
| 1561 | SP = MARK; | |
| 1562 | } | |
| a0d0e21e | 1563 | PUSHTARG; |
| 79072805 | 1564 | } |
| a0d0e21e | 1565 | RETURN; |
| 748a9306 | 1566 | } |
| a0d0e21e | 1567 | } |
| 79072805 | 1568 | |
| a0d0e21e LW |
1569 | PP(pp_subtract) |
| 1570 | { | |
| 97aff369 | 1571 | dVAR; dSP; dATARGET; bool useleft; tryAMAGICbin(subtr,opASSIGN); |
| 28e5dec8 JH |
1572 | useleft = USE_LEFT(TOPm1s); |
| 1573 | #ifdef PERL_PRESERVE_IVUV | |
| 7dca457a NC |
1574 | /* See comments in pp_add (in pp_hot.c) about Overflow, and how |
| 1575 | "bad things" happen if you rely on signed integers wrapping. */ | |
| 28e5dec8 JH |
1576 | SvIV_please(TOPs); |
| 1577 | if (SvIOK(TOPs)) { | |
| 1578 | /* Unless the left argument is integer in range we are going to have to | |
| 1579 | use NV maths. Hence only attempt to coerce the right argument if | |
| 1580 | we know the left is integer. */ | |
| 9c5ffd7c JH |
1581 | register UV auv = 0; |
| 1582 | bool auvok = FALSE; | |
| 7dca457a NC |
1583 | bool a_valid = 0; |
| 1584 | ||
| 28e5dec8 | 1585 | if (!useleft) { |
| 7dca457a NC |
1586 | auv = 0; |
| 1587 | a_valid = auvok = 1; | |
| 1588 | /* left operand is undef, treat as zero. */ | |
| 28e5dec8 JH |
1589 | } else { |
| 1590 | /* Left operand is defined, so is it IV? */ | |
| 1591 | SvIV_please(TOPm1s); | |
| 1592 | if (SvIOK(TOPm1s)) { | |
| 7dca457a NC |
1593 | if ((auvok = SvUOK(TOPm1s))) |
| 1594 | auv = SvUVX(TOPm1s); | |
| 1595 | else { | |
| 1b6737cc | 1596 | register const IV aiv = SvIVX(TOPm1s); |
| 7dca457a NC |
1597 | if (aiv >= 0) { |
| 1598 | auv = aiv; | |
| 1599 | auvok = 1; /* Now acting as a sign flag. */ | |
| 1600 | } else { /* 2s complement assumption for IV_MIN */ | |
| 1601 | auv = (UV)-aiv; | |
| 28e5dec8 | 1602 | } |
| 7dca457a NC |
1603 | } |
| 1604 | a_valid = 1; | |
| 1605 | } | |
| 1606 | } | |
| 1607 | if (a_valid) { | |
| 1608 | bool result_good = 0; | |
| 1609 | UV result; | |
| 1610 | register UV buv; | |
| 1611 | bool buvok = SvUOK(TOPs); | |
| 9041c2e3 | 1612 | |
| 7dca457a NC |
1613 | if (buvok) |
| 1614 | buv = SvUVX(TOPs); | |
| 1615 | else { | |
| 1b6737cc | 1616 | register const IV biv = SvIVX(TOPs); |
| 7dca457a NC |
1617 | if (biv >= 0) { |
| 1618 | buv = biv; | |
| 1619 | buvok = 1; | |
| 1620 | } else | |
| 1621 | buv = (UV)-biv; | |
| 1622 | } | |
| 1623 | /* ?uvok if value is >= 0. basically, flagged as UV if it's +ve, | |
| 602f51c4 | 1624 | else "IV" now, independent of how it came in. |
| 7dca457a NC |
1625 | if a, b represents positive, A, B negative, a maps to -A etc |
| 1626 | a - b => (a - b) | |
| 1627 | A - b => -(a + b) | |
| 1628 | a - B => (a + b) | |
| 1629 | A - B => -(a - b) | |
| 1630 | all UV maths. negate result if A negative. | |
| 1631 | subtract if signs same, add if signs differ. */ | |
| 1632 | ||
| 1633 | if (auvok ^ buvok) { | |
| 1634 | /* Signs differ. */ | |
| 1635 | result = auv + buv; | |
| 1636 | if (result >= auv) | |
| 1637 | result_good = 1; | |
| 1638 | } else { | |
| 1639 | /* Signs same */ | |
| 1640 | if (auv >= buv) { | |
| 1641 | result = auv - buv; | |
| 1642 | /* Must get smaller */ | |
| 1643 | if (result <= auv) | |
| 1644 | result_good = 1; | |
| 1645 | } else { | |
| 1646 | result = buv - auv; | |
| 1647 | if (result <= buv) { | |
| 1648 | /* result really should be -(auv-buv). as its negation | |
| 1649 | of true value, need to swap our result flag */ | |
| 1650 | auvok = !auvok; | |
| 1651 | result_good = 1; | |
| 28e5dec8 | 1652 | } |
| 28e5dec8 JH |
1653 | } |
| 1654 | } | |
| 7dca457a NC |
1655 | if (result_good) { |
| 1656 | SP--; | |
| 1657 | if (auvok) | |
| 1658 | SETu( result ); | |
| 1659 | else { | |
| 1660 | /* Negate result */ | |
| 1661 | if (result <= (UV)IV_MIN) | |
| 1662 | SETi( -(IV)result ); | |
| 1663 | else { | |
| 1664 | /* result valid, but out of range for IV. */ | |
| 1665 | SETn( -(NV)result ); | |
| 1666 | } | |
| 1667 | } | |
| 1668 | RETURN; | |
| 1669 | } /* Overflow, drop through to NVs. */ | |
| 28e5dec8 JH |
1670 | } |
| 1671 | } | |
| 1672 | #endif | |
| 7dca457a | 1673 | useleft = USE_LEFT(TOPm1s); |
| a0d0e21e | 1674 | { |
| 28e5dec8 JH |
1675 | dPOPnv; |
| 1676 | if (!useleft) { | |
| 1677 | /* left operand is undef, treat as zero - value */ | |
| 1678 | SETn(-value); | |
| 1679 | RETURN; | |
| 1680 | } | |
| 1681 | SETn( TOPn - value ); | |
| 1682 | RETURN; | |
| 79072805 | 1683 | } |
| a0d0e21e | 1684 | } |
| 79072805 | 1685 | |
| a0d0e21e LW |
1686 | PP(pp_left_shift) |
| 1687 | { | |
| 97aff369 | 1688 | dVAR; dSP; dATARGET; tryAMAGICbin(lshift,opASSIGN); |
| a0d0e21e | 1689 | { |
| 1b6737cc | 1690 | const IV shift = POPi; |
| d0ba1bd2 | 1691 | if (PL_op->op_private & HINT_INTEGER) { |
| c445ea15 | 1692 | const IV i = TOPi; |
| 972b05a9 | 1693 | SETi(i << shift); |
| d0ba1bd2 JH |
1694 | } |
| 1695 | else { | |
| c445ea15 | 1696 | const UV u = TOPu; |
| 972b05a9 | 1697 | SETu(u << shift); |
| d0ba1bd2 | 1698 | } |
| 55497cff | 1699 | RETURN; |
| 79072805 | 1700 | } |
| a0d0e21e | 1701 | } |
| 79072805 | 1702 | |
| a0d0e21e LW |
1703 | PP(pp_right_shift) |
| 1704 | { | |
| 97aff369 | 1705 | dVAR; dSP; dATARGET; tryAMAGICbin(rshift,opASSIGN); |
| a0d0e21e | 1706 | { |
| 1b6737cc | 1707 | const IV shift = POPi; |
| d0ba1bd2 | 1708 | if (PL_op->op_private & HINT_INTEGER) { |
| 0bd48802 | 1709 | const IV i = TOPi; |
| 972b05a9 | 1710 | SETi(i >> shift); |
| d0ba1bd2 JH |
1711 | } |
| 1712 | else { | |
| 0bd48802 | 1713 | const UV u = TOPu; |
| 972b05a9 | 1714 | SETu(u >> shift); |
| d0ba1bd2 | 1715 | } |
| a0d0e21e | 1716 | RETURN; |
| 93a17b20 | 1717 | } |
| 79072805 LW |
1718 | } |
| 1719 | ||
| a0d0e21e | 1720 | PP(pp_lt) |
| 79072805 | 1721 | { |
| 97aff369 | 1722 | dVAR; dSP; tryAMAGICbinSET(lt,0); |
| 28e5dec8 JH |
1723 | #ifdef PERL_PRESERVE_IVUV |
| 1724 | SvIV_please(TOPs); | |
| 1725 | if (SvIOK(TOPs)) { | |
| 1726 | SvIV_please(TOPm1s); | |
| 1727 | if (SvIOK(TOPm1s)) { | |
| 1728 | bool auvok = SvUOK(TOPm1s); | |
| 1729 | bool buvok = SvUOK(TOPs); | |
| a227d84d | 1730 | |
| 28e5dec8 | 1731 | if (!auvok && !buvok) { /* ## IV < IV ## */ |
| 1b6737cc AL |
1732 | const IV aiv = SvIVX(TOPm1s); |
| 1733 | const IV biv = SvIVX(TOPs); | |
| 28e5dec8 JH |
1734 | |
| 1735 | SP--; | |
| 1736 | SETs(boolSV(aiv < biv)); | |
| 1737 | RETURN; | |
| 1738 | } | |
| 1739 | if (auvok && buvok) { /* ## UV < UV ## */ | |
| 1b6737cc AL |
1740 | const UV auv = SvUVX(TOPm1s); |
| 1741 | const UV buv = SvUVX(TOPs); | |
| 28e5dec8 JH |
1742 | |
| 1743 | SP--; | |
| 1744 | SETs(boolSV(auv < buv)); | |
| 1745 | RETURN; | |
| 1746 | } | |
| 1747 | if (auvok) { /* ## UV < IV ## */ | |
| 1748 | UV auv; | |
| 1b6737cc | 1749 | const IV biv = SvIVX(TOPs); |
| 28e5dec8 JH |
1750 | SP--; |
| 1751 | if (biv < 0) { | |
| 1752 | /* As (a) is a UV, it's >=0, so it cannot be < */ | |
| 1753 | SETs(&PL_sv_no); | |
| 1754 | RETURN; | |
| 1755 | } | |
| 1756 | auv = SvUVX(TOPs); | |
| 28e5dec8 JH |
1757 | SETs(boolSV(auv < (UV)biv)); |
| 1758 | RETURN; | |
| 1759 | } | |
| 1760 | { /* ## IV < UV ## */ | |
| 1b6737cc | 1761 | const IV aiv = SvIVX(TOPm1s); |
| 28e5dec8 JH |
1762 | UV buv; |
| 1763 | ||
| 28e5dec8 JH |
1764 | if (aiv < 0) { |
| 1765 | /* As (b) is a UV, it's >=0, so it must be < */ | |
| 1766 | SP--; | |
| 1767 | SETs(&PL_sv_yes); | |
| 1768 | RETURN; | |
| 1769 | } | |
| 1770 | buv = SvUVX(TOPs); | |
| 1771 | SP--; | |
| 28e5dec8 JH |
1772 | SETs(boolSV((UV)aiv < buv)); |
| 1773 | RETURN; | |
| 1774 | } | |
| 1775 | } | |
| 1776 | } | |
| 1777 | #endif | |
| 30de85b6 | 1778 | #ifndef NV_PRESERVES_UV |
| 50fb3111 NC |
1779 | #ifdef PERL_PRESERVE_IVUV |
| 1780 | else | |
| 1781 | #endif | |
| 0bdaccee NC |
1782 | if (SvROK(TOPs) && !SvAMAGIC(TOPs) && SvROK(TOPm1s) && !SvAMAGIC(TOPm1s)) { |
| 1783 | SP--; | |
| 1784 | SETs(boolSV(SvRV(TOPs) < SvRV(TOPp1s))); | |
| 1785 | RETURN; | |
| 1786 | } | |
| 30de85b6 | 1787 | #endif |
| a0d0e21e | 1788 | { |
| cab190d4 JD |
1789 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
| 1790 | dPOPTOPnnrl; | |
| 1791 | if (Perl_isnan(left) || Perl_isnan(right)) | |
| 1792 | RETSETNO; | |
| 1793 | SETs(boolSV(left < right)); | |
| 1794 | #else | |
| a0d0e21e | 1795 | dPOPnv; |
| 54310121 | 1796 | SETs(boolSV(TOPn < value)); |
| cab190d4 | 1797 | #endif |
| a0d0e21e | 1798 | RETURN; |
| 79072805 | 1799 | } |
| a0d0e21e | 1800 | } |
| 79072805 | 1801 | |
| a0d0e21e LW |
1802 | PP(pp_gt) |
| 1803 | { | |
| 97aff369 | 1804 | dVAR; dSP; tryAMAGICbinSET(gt,0); |
| 28e5dec8 JH |
1805 | #ifdef PERL_PRESERVE_IVUV |
| 1806 | SvIV_please(TOPs); | |
| 1807 | if (SvIOK(TOPs)) { | |
| 1808 | SvIV_please(TOPm1s); | |
| 1809 | if (SvIOK(TOPm1s)) { | |
| 1810 | bool auvok = SvUOK(TOPm1s); | |
| 1811 | bool buvok = SvUOK(TOPs); | |
| a227d84d | 1812 | |
| 28e5dec8 | 1813 | if (!auvok && !buvok) { /* ## IV > IV ## */ |
| 1b6737cc AL |
1814 | const IV aiv = SvIVX(TOPm1s); |
| 1815 | const IV biv = SvIVX(TOPs); | |
| 1816 | ||
| 28e5dec8 JH |
1817 | SP--; |
| 1818 | SETs(boolSV(aiv > biv)); | |
| 1819 | RETURN; | |
| 1820 | } | |
| 1821 | if (auvok && buvok) { /* ## UV > UV ## */ | |
| 1b6737cc AL |
1822 | const UV auv = SvUVX(TOPm1s); |
| 1823 | const UV buv = SvUVX(TOPs); | |
| 28e5dec8 JH |
1824 | |
| 1825 | SP--; | |
| 1826 | SETs(boolSV(auv > buv)); | |
| 1827 | RETURN; | |
| 1828 | } | |
| 1829 | if (auvok) { /* ## UV > IV ## */ | |
| 1830 | UV auv; | |
| 1b6737cc AL |
1831 | const IV biv = SvIVX(TOPs); |
| 1832 | ||
| 28e5dec8 JH |
1833 | SP--; |
| 1834 | if (biv < 0) { | |
| 1835 | /* As (a) is a UV, it's >=0, so it must be > */ | |
| 1836 | SETs(&PL_sv_yes); | |
| 1837 | RETURN; | |
| 1838 | } | |
| 1839 | auv = SvUVX(TOPs); | |
| 28e5dec8 JH |
1840 | SETs(boolSV(auv > (UV)biv)); |
| 1841 | RETURN; | |
| 1842 | } | |
| 1843 | { /* ## IV > UV ## */ | |
| 1b6737cc | 1844 | const IV aiv = SvIVX(TOPm1s); |
| 28e5dec8 JH |
1845 | UV buv; |
| 1846 | ||
| 28e5dec8 JH |
1847 | if (aiv < 0) { |
| 1848 | /* As (b) is a UV, it's >=0, so it cannot be > */ | |
| 1849 | SP--; | |
| 1850 | SETs(&PL_sv_no); | |
| 1851 | RETURN; | |
| 1852 | } | |
| 1853 | buv = SvUVX(TOPs); | |
| 1854 | SP--; | |
| 28e5dec8 JH |
1855 | SETs(boolSV((UV)aiv > buv)); |
| 1856 | RETURN; | |
| 1857 | } | |
| 1858 | } | |
| 1859 | } | |
| 1860 | #endif | |
| 30de85b6 | 1861 | #ifndef NV_PRESERVES_UV |
| 50fb3111 NC |
1862 | #ifdef PERL_PRESERVE_IVUV |
| 1863 | else | |
| 1864 | #endif | |
| 0bdaccee | 1865 | if (SvROK(TOPs) && !SvAMAGIC(TOPs) && SvROK(TOPm1s) && !SvAMAGIC(TOPm1s)) { |
| 30de85b6 NC |
1866 | SP--; |
| 1867 | SETs(boolSV(SvRV(TOPs) > SvRV(TOPp1s))); | |
| 1868 | RETURN; | |
| 1869 | } | |
| 1870 | #endif | |
| a0d0e21e | 1871 | { |
| cab190d4 JD |
1872 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
| 1873 | dPOPTOPnnrl; | |
| 1874 | if (Perl_isnan(left) || Perl_isnan(right)) | |
| 1875 | RETSETNO; | |
| 1876 | SETs(boolSV(left > right)); | |
| 1877 | #else | |
| a0d0e21e | 1878 | dPOPnv; |
| 54310121 | 1879 | SETs(boolSV(TOPn > value)); |
| cab190d4 | 1880 | #endif |
| a0d0e21e | 1881 | RETURN; |
| 79072805 | 1882 | } |
| a0d0e21e LW |
1883 | } |
| 1884 | ||
| 1885 | PP(pp_le) | |
| 1886 | { | |
| 97aff369 | 1887 | dVAR; dSP; tryAMAGICbinSET(le,0); |
| 28e5dec8 JH |
1888 | #ifdef PERL_PRESERVE_IVUV |
| 1889 | SvIV_please(TOPs); | |
| 1890 | if (SvIOK(TOPs)) { | |
| 1891 | SvIV_please(TOPm1s); | |
| 1892 | if (SvIOK(TOPm1s)) { | |
| 1893 | bool auvok = SvUOK(TOPm1s); | |
| 1894 | bool buvok = SvUOK(TOPs); | |
| a227d84d | 1895 | |
| 28e5dec8 | 1896 | if (!auvok && !buvok) { /* ## IV <= IV ## */ |
| 1b6737cc AL |
1897 | const IV aiv = SvIVX(TOPm1s); |
| 1898 | const IV biv = SvIVX(TOPs); | |
| 28e5dec8 JH |
1899 | |
| 1900 | SP--; | |
| 1901 | SETs(boolSV(aiv <= biv)); | |
| 1902 | RETURN; | |
| 1903 | } | |
| 1904 | if (auvok && buvok) { /* ## UV <= UV ## */ | |
| 1905 | UV auv = SvUVX(TOPm1s); | |
| 1906 | UV buv = SvUVX(TOPs); | |
| 1907 | ||
| 1908 | SP--; | |
| 1909 | SETs(boolSV(auv <= buv)); | |
| 1910 | RETURN; | |
| 1911 | } | |
| 1912 | if (auvok) { /* ## UV <= IV ## */ | |
| 1913 | UV auv; | |
| 1b6737cc AL |
1914 | const IV biv = SvIVX(TOPs); |
| 1915 | ||
| 28e5dec8 JH |
1916 | SP--; |
| 1917 | if (biv < 0) { | |
| 1918 | /* As (a) is a UV, it's >=0, so a cannot be <= */ | |
| 1919 | SETs(&PL_sv_no); | |
| 1920 | RETURN; | |
| 1921 | } | |
| 1922 | auv = SvUVX(TOPs); | |
| 28e5dec8 JH |
1923 | SETs(boolSV(auv <= (UV)biv)); |
| 1924 | RETURN; | |
| 1925 | } | |
| 1926 | { /* ## IV <= UV ## */ | |
| 1b6737cc | 1927 | const IV aiv = SvIVX(TOPm1s); |
| 28e5dec8 | 1928 | UV buv; |
| 1b6737cc | 1929 | |
| 28e5dec8 JH |
1930 | if (aiv < 0) { |
| 1931 | /* As (b) is a UV, it's >=0, so a must be <= */ | |
| 1932 | SP--; | |
| 1933 | SETs(&PL_sv_yes); | |
| 1934 | RETURN; | |
| 1935 | } | |
| 1936 | buv = SvUVX(TOPs); | |
| 1937 | SP--; | |
| 28e5dec8 JH |
1938 | SETs(boolSV((UV)aiv <= buv)); |
| 1939 | RETURN; | |
| 1940 | } | |
| 1941 | } | |
| 1942 | } | |
| 1943 | #endif | |
| 30de85b6 | 1944 | #ifndef NV_PRESERVES_UV |
| 50fb3111 NC |
1945 | #ifdef PERL_PRESERVE_IVUV |
| 1946 | else | |
| 1947 | #endif | |
| 0bdaccee | 1948 | if (SvROK(TOPs) && !SvAMAGIC(TOPs) && SvROK(TOPm1s) && !SvAMAGIC(TOPm1s)) { |
| 30de85b6 NC |
1949 | SP--; |
| 1950 | SETs(boolSV(SvRV(TOPs) <= SvRV(TOPp1s))); | |
| 1951 | RETURN; | |
| 1952 | } | |
| 1953 | #endif | |
| a0d0e21e | 1954 | { |
| cab190d4 JD |
1955 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
| 1956 | dPOPTOPnnrl; | |
| 1957 | if (Perl_isnan(left) || Perl_isnan(right)) | |
| 1958 | RETSETNO; | |
| 1959 | SETs(boolSV(left <= right)); | |
| 1960 | #else | |
| a0d0e21e | 1961 | dPOPnv; |
| 54310121 | 1962 | SETs(boolSV(TOPn <= value)); |
| cab190d4 | 1963 | #endif |
| a0d0e21e | 1964 | RETURN; |
| 79072805 | 1965 | } |
| a0d0e21e LW |
1966 | } |
| 1967 | ||
| 1968 | PP(pp_ge) | |
| 1969 | { | |
| 97aff369 | 1970 | dVAR; dSP; tryAMAGICbinSET(ge,0); |
| 28e5dec8 JH |
1971 | #ifdef PERL_PRESERVE_IVUV |
| 1972 | SvIV_please(TOPs); | |
| 1973 | if (SvIOK(TOPs)) { | |
| 1974 | SvIV_please(TOPm1s); | |
| 1975 | if (SvIOK(TOPm1s)) { | |
| 1976 | bool auvok = SvUOK(TOPm1s); | |
| 1977 | bool buvok = SvUOK(TOPs); | |
| a227d84d | 1978 | |
| 28e5dec8 | 1979 | if (!auvok && !buvok) { /* ## IV >= IV ## */ |
| 1b6737cc AL |
1980 | const IV aiv = SvIVX(TOPm1s); |
| 1981 | const IV biv = SvIVX(TOPs); | |
| 1982 | ||
| 28e5dec8 JH |
1983 | SP--; |
| 1984 | SETs(boolSV(aiv >= biv)); | |
| 1985 | RETURN; | |
| 1986 | } | |
| 1987 | if (auvok && buvok) { /* ## UV >= UV ## */ | |
| 1b6737cc AL |
1988 | const UV auv = SvUVX(TOPm1s); |
| 1989 | const UV buv = SvUVX(TOPs); | |
| 1990 | ||
| 28e5dec8 JH |
1991 | SP--; |
| 1992 | SETs(boolSV(auv >= buv)); | |
| 1993 | RETURN; | |
| 1994 | } | |
| 1995 | if (auvok) { /* ## UV >= IV ## */ | |
| 1996 | UV auv; | |
| 1b6737cc AL |
1997 | const IV biv = SvIVX(TOPs); |
| 1998 | ||
| 28e5dec8 JH |
1999 | SP--; |
| 2000 | if (biv < 0) { | |
| 2001 | /* As (a) is a UV, it's >=0, so it must be >= */ | |
| 2002 | SETs(&PL_sv_yes); | |
| 2003 | RETURN; | |
| 2004 | } | |
| 2005 | auv = SvUVX(TOPs); | |
| 28e5dec8 JH |
2006 | SETs(boolSV(auv >= (UV)biv)); |
| 2007 | RETURN; | |
| 2008 | } | |
| 2009 | { /* ## IV >= UV ## */ | |
| 1b6737cc | 2010 | const IV aiv = SvIVX(TOPm1s); |
| 28e5dec8 | 2011 | UV buv; |
| 1b6737cc | 2012 | |
| 28e5dec8 JH |
2013 | if (aiv < 0) { |
| 2014 | /* As (b) is a UV, it's >=0, so a cannot be >= */ | |
| 2015 | SP--; | |
| 2016 | SETs(&PL_sv_no); | |
| 2017 | RETURN; | |
| 2018 | } | |
| 2019 | buv = SvUVX(TOPs); | |
| 2020 | SP--; | |
| 28e5dec8 JH |
2021 | SETs(boolSV((UV)aiv >= buv)); |
| 2022 | RETURN; | |
| 2023 | } | |
| 2024 | } | |
| 2025 | } | |
| 2026 | #endif | |
| 30de85b6 | 2027 | #ifndef NV_PRESERVES_UV |
| 50fb3111 NC |
2028 | #ifdef PERL_PRESERVE_IVUV |
| 2029 | else | |
| 2030 | #endif | |
| 0bdaccee | 2031 | if (SvROK(TOPs) && !SvAMAGIC(TOPs) && SvROK(TOPm1s) && !SvAMAGIC(TOPm1s)) { |
| 30de85b6 NC |
2032 | SP--; |
| 2033 | SETs(boolSV(SvRV(TOPs) >= SvRV(TOPp1s))); | |
| 2034 | RETURN; | |
| 2035 | } | |
| 2036 | #endif | |
| a0d0e21e | 2037 | { |
| cab190d4 JD |
2038 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
| 2039 | dPOPTOPnnrl; | |
| 2040 | if (Perl_isnan(left) || Perl_isnan(right)) | |
| 2041 | RETSETNO; | |
| 2042 | SETs(boolSV(left >= right)); | |
| 2043 | #else | |
| a0d0e21e | 2044 | dPOPnv; |
| 54310121 | 2045 | SETs(boolSV(TOPn >= value)); |
| cab190d4 | 2046 | #endif |
| a0d0e21e | 2047 | RETURN; |
| 79072805 | 2048 | } |
| a0d0e21e | 2049 | } |
| 79072805 | 2050 | |
| a0d0e21e LW |
2051 | PP(pp_ne) |
| 2052 | { | |
| 97aff369 | 2053 | dVAR; dSP; tryAMAGICbinSET(ne,0); |
| 3bb2c415 | 2054 | #ifndef NV_PRESERVES_UV |
| 0bdaccee | 2055 | if (SvROK(TOPs) && !SvAMAGIC(TOPs) && SvROK(TOPm1s) && !SvAMAGIC(TOPm1s)) { |
| e61d22ef NC |
2056 | SP--; |
| 2057 | SETs(boolSV(SvRV(TOPs) != SvRV(TOPp1s))); | |
| 3bb2c415 JH |
2058 | RETURN; |
| 2059 | } | |
| 2060 | #endif | |
| 28e5dec8 JH |
2061 | #ifdef PERL_PRESERVE_IVUV |
| 2062 | SvIV_please(TOPs); | |
| 2063 | if (SvIOK(TOPs)) { | |
| 2064 | SvIV_please(TOPm1s); | |
| 2065 | if (SvIOK(TOPm1s)) { | |
| 0bd48802 AL |
2066 | const bool auvok = SvUOK(TOPm1s); |
| 2067 | const bool buvok = SvUOK(TOPs); | |
| a227d84d | 2068 | |
| 30de85b6 NC |
2069 | if (auvok == buvok) { /* ## IV == IV or UV == UV ## */ |
| 2070 | /* Casting IV to UV before comparison isn't going to matter | |
| 2071 | on 2s complement. On 1s complement or sign&magnitude | |
| 2072 | (if we have any of them) it could make negative zero | |
| 2073 | differ from normal zero. As I understand it. (Need to | |
| 2074 | check - is negative zero implementation defined behaviour | |
| 2075 | anyway?). NWC */ | |
| 1b6737cc AL |
2076 | const UV buv = SvUVX(POPs); |
| 2077 | const UV auv = SvUVX(TOPs); | |
| 2078 | ||
| 28e5dec8 JH |
2079 | SETs(boolSV(auv != buv)); |
| 2080 | RETURN; | |
| 2081 | } | |
| 2082 | { /* ## Mixed IV,UV ## */ | |
| 2083 | IV iv; | |
| 2084 | UV uv; | |
| 2085 | ||
| 2086 | /* != is commutative so swap if needed (save code) */ | |
| 2087 | if (auvok) { | |
| 2088 | /* swap. top of stack (b) is the iv */ | |
| 2089 | iv = SvIVX(TOPs); | |
| 2090 | SP--; | |
| 2091 | if (iv < 0) { | |
| 2092 | /* As (a) is a UV, it's >0, so it cannot be == */ | |
| 2093 | SETs(&PL_sv_yes); | |
| 2094 | RETURN; | |
| 2095 | } | |
| 2096 | uv = SvUVX(TOPs); | |
| 2097 | } else { | |
| 2098 | iv = SvIVX(TOPm1s); | |
| 2099 | SP--; | |
| 2100 | if (iv < 0) { | |
| 2101 | /* As (b) is a UV, it's >0, so it cannot be == */ | |
| 2102 | SETs(&PL_sv_yes); | |
| 2103 | RETURN; | |
| 2104 | } | |
| 2105 | uv = SvUVX(*(SP+1)); /* Do I want TOPp1s() ? */ | |
| 2106 | } | |
| 28e5dec8 JH |
2107 | SETs(boolSV((UV)iv != uv)); |
| 2108 | RETURN; | |
| 2109 | } | |
| 2110 | } | |
| 2111 | } | |
| 2112 | #endif | |
| a0d0e21e | 2113 | { |
| cab190d4 JD |
2114 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
| 2115 | dPOPTOPnnrl; | |
| 2116 | if (Perl_isnan(left) || Perl_isnan(right)) | |
| 2117 | RETSETYES; | |
| 2118 | SETs(boolSV(left != right)); | |
| 2119 | #else | |
| a0d0e21e | 2120 | dPOPnv; |
| 54310121 | 2121 | SETs(boolSV(TOPn != value)); |
| cab190d4 | 2122 | #endif |
| a0d0e21e LW |
2123 | RETURN; |
| 2124 | } | |
| 79072805 LW |
2125 | } |
| 2126 | ||
| a0d0e21e | 2127 | PP(pp_ncmp) |
| 79072805 | 2128 | { |
| 97aff369 | 2129 | dVAR; dSP; dTARGET; tryAMAGICbin(ncmp,0); |
| d8c7644e | 2130 | #ifndef NV_PRESERVES_UV |
| 0bdaccee | 2131 | if (SvROK(TOPs) && !SvAMAGIC(TOPs) && SvROK(TOPm1s) && !SvAMAGIC(TOPm1s)) { |
| 0bd48802 AL |
2132 | const UV right = PTR2UV(SvRV(POPs)); |
| 2133 | const UV left = PTR2UV(SvRV(TOPs)); | |
| e61d22ef | 2134 | SETi((left > right) - (left < right)); |
| d8c7644e JH |
2135 | RETURN; |
| 2136 | } | |
| 2137 | #endif | |
| 28e5dec8 JH |
2138 | #ifdef PERL_PRESERVE_IVUV |
| 2139 | /* Fortunately it seems NaN isn't IOK */ | |
| 2140 | SvIV_please(TOPs); | |
| 2141 | if (SvIOK(TOPs)) { | |
| 2142 | SvIV_please(TOPm1s); | |
| 2143 | if (SvIOK(TOPm1s)) { | |
| 1b6737cc AL |
2144 | const bool leftuvok = SvUOK(TOPm1s); |
| 2145 | const bool rightuvok = SvUOK(TOPs); | |
| 28e5dec8 JH |
2146 | I32 value; |
| 2147 | if (!leftuvok && !rightuvok) { /* ## IV <=> IV ## */ | |
| 1b6737cc AL |
2148 | const IV leftiv = SvIVX(TOPm1s); |
| 2149 | const IV rightiv = SvIVX(TOPs); | |
| 28e5dec8 JH |
2150 | |
| 2151 | if (leftiv > rightiv) | |
| 2152 | value = 1; | |
| 2153 | else if (leftiv < rightiv) | |
| 2154 | value = -1; | |
| 2155 | else | |
| 2156 | value = 0; | |
| 2157 | } else if (leftuvok && rightuvok) { /* ## UV <=> UV ## */ | |
| 1b6737cc AL |
2158 | const UV leftuv = SvUVX(TOPm1s); |
| 2159 | const UV rightuv = SvUVX(TOPs); | |
| 28e5dec8 JH |
2160 | |
| 2161 | if (leftuv > rightuv) | |
| 2162 | value = 1; | |
| 2163 | else if (leftuv < rightuv) | |
| 2164 | value = -1; | |
| 2165 | else | |
| 2166 | value = 0; | |
| 2167 | } else if (leftuvok) { /* ## UV <=> IV ## */ | |
| 1b6737cc | 2168 | const IV rightiv = SvIVX(TOPs); |
| 28e5dec8 JH |
2169 | if (rightiv < 0) { |
| 2170 | /* As (a) is a UV, it's >=0, so it cannot be < */ | |
| 2171 | value = 1; | |
| 2172 | } else { | |
| 1b6737cc | 2173 | const UV leftuv = SvUVX(TOPm1s); |
| 83bac5dd | 2174 | if (leftuv > (UV)rightiv) { |
| 28e5dec8 JH |
2175 | value = 1; |
| 2176 | } else if (leftuv < (UV)rightiv) { | |
| 2177 | value = -1; | |
| 2178 | } else { | |
| 2179 | value = 0; | |
| 2180 | } | |
| 2181 | } | |
| 2182 | } else { /* ## IV <=> UV ## */ | |
| 1b6737cc | 2183 | const IV leftiv = SvIVX(TOPm1s); |
| 28e5dec8 JH |
2184 | if (leftiv < 0) { |
| 2185 | /* As (b) is a UV, it's >=0, so it must be < */ | |
| 2186 | value = -1; | |
| 2187 | } else { | |
| 1b6737cc | 2188 | const UV rightuv = SvUVX(TOPs); |
| 83bac5dd | 2189 | if ((UV)leftiv > rightuv) { |
| 28e5dec8 | 2190 | value = 1; |
| 83bac5dd | 2191 | } else if ((UV)leftiv < rightuv) { |
| 28e5dec8 JH |
2192 | value = -1; |
| 2193 | } else { | |
| 2194 | value = 0; | |
| 2195 | } | |
| 2196 | } | |
| 2197 | } | |
| 2198 | SP--; | |
| 2199 | SETi(value); | |
| 2200 | RETURN; | |
| 2201 | } | |
| 2202 | } | |
| 2203 | #endif | |
| a0d0e21e LW |
2204 | { |
| 2205 | dPOPTOPnnrl; | |
| 2206 | I32 value; | |
| 79072805 | 2207 | |
| a3540c92 | 2208 | #ifdef Perl_isnan |
| 1ad04cfd JH |
2209 | if (Perl_isnan(left) || Perl_isnan(right)) { |
| 2210 | SETs(&PL_sv_undef); | |
| 2211 | RETURN; | |
| 2212 | } | |
| 2213 | value = (left > right) - (left < right); | |
| 2214 | #else | |
| ff0cee69 | 2215 | if (left == right) |
| a0d0e21e | 2216 | value = 0; |
| a0d0e21e LW |
2217 | else if (left < right) |
| 2218 | value = -1; | |
| 44a8e56a PP |
2219 | else if (left > right) |
| 2220 | value = 1; | |
| 2221 | else { | |
| 3280af22 | 2222 | SETs(&PL_sv_undef); |
| 44a8e56a PP |
2223 | RETURN; |
| 2224 | } | |
| 1ad04cfd | 2225 | #endif |
| a0d0e21e LW |
2226 | SETi(value); |
| 2227 | RETURN; | |
| 79072805 | 2228 | } |
| a0d0e21e | 2229 | } |
| 79072805 | 2230 | |
| afd9910b | 2231 | PP(pp_sle) |
| a0d0e21e | 2232 | { |
| 97aff369 | 2233 | dVAR; dSP; |
| 79072805 | 2234 | |
| afd9910b NC |
2235 | int amg_type = sle_amg; |
| 2236 | int multiplier = 1; | |
| 2237 | int rhs = 1; | |
| 79072805 | 2238 | |
| afd9910b NC |
2239 | switch (PL_op->op_type) { |
| 2240 | case OP_SLT: | |
| 2241 | amg_type = slt_amg; | |
| 2242 | /* cmp < 0 */ | |
| 2243 | rhs = 0; | |
| 2244 | break; | |
| 2245 | case OP_SGT: | |
| 2246 | amg_type = sgt_amg; | |
| 2247 | /* cmp > 0 */ | |
| 2248 | multiplier = -1; | |
| 2249 | rhs = 0; | |
| 2250 | break; | |
| 2251 | case OP_SGE: | |
| 2252 | amg_type = sge_amg; | |
| 2253 | /* cmp >= 0 */ | |
| 2254 | multiplier = -1; | |
| 2255 | break; | |
| 79072805 | 2256 | } |
| 79072805 | 2257 | |
| afd9910b | 2258 | tryAMAGICbinSET_var(amg_type,0); |
| a0d0e21e LW |
2259 | { |
| 2260 | dPOPTOPssrl; | |
| 1b6737cc | 2261 | const int cmp = (IN_LOCALE_RUNTIME |
| bbce6d69 PP |
2262 | ? sv_cmp_locale(left, right) |
| 2263 | : sv_cmp(left, right)); | |
| afd9910b | 2264 | SETs(boolSV(cmp * multiplier < rhs)); |
| a0d0e21e LW |
2265 | RETURN; |
| 2266 | } | |
| 2267 | } | |
| 79072805 | 2268 | |
| 36477c24 PP |
2269 | PP(pp_seq) |
| 2270 | { | |
| 97aff369 | 2271 | dVAR; dSP; tryAMAGICbinSET(seq,0); |
| 36477c24 PP |
2272 | { |
| 2273 | dPOPTOPssrl; | |
| 54310121 | 2274 | SETs(boolSV(sv_eq(left, right))); |
| a0d0e21e LW |
2275 | RETURN; |
| 2276 | } | |
| 2277 | } | |
| 79072805 | 2278 | |
| a0d0e21e | 2279 | PP(pp_sne) |
| 79072805 | 2280 | { |
| 97aff369 | 2281 | dVAR; dSP; tryAMAGICbinSET(sne,0); |
| a0d0e21e LW |
2282 | { |
| 2283 | dPOPTOPssrl; | |
| 54310121 | 2284 | SETs(boolSV(!sv_eq(left, right))); |
| a0d0e21e | 2285 | RETURN; |
| 463ee0b2 | 2286 | } |
| 79072805 LW |
2287 | } |
| 2288 | ||
| a0d0e21e | 2289 | PP(pp_scmp) |
| 79072805 | 2290 | { |
| 97aff369 | 2291 | dVAR; dSP; dTARGET; tryAMAGICbin(scmp,0); |
| a0d0e21e LW |
2292 | { |
| 2293 | dPOPTOPssrl; | |
| 1b6737cc | 2294 | const int cmp = (IN_LOCALE_RUNTIME |
| bbce6d69 PP |
2295 | ? sv_cmp_locale(left, right) |
| 2296 | : sv_cmp(left, right)); | |
| 2297 | SETi( cmp ); | |
| a0d0e21e LW |
2298 | RETURN; |
| 2299 | } | |
| 2300 | } | |
| 79072805 | 2301 | |
| 55497cff PP |
2302 | PP(pp_bit_and) |
| 2303 | { | |
| 97aff369 | 2304 | dVAR; dSP; dATARGET; tryAMAGICbin(band,opASSIGN); |
| a0d0e21e LW |
2305 | { |
| 2306 | dPOPTOPssrl; | |
| 5b295bef RD |
2307 | SvGETMAGIC(left); |
| 2308 | SvGETMAGIC(right); | |
| 4633a7c4 | 2309 | if (SvNIOKp(left) || SvNIOKp(right)) { |
| d0ba1bd2 | 2310 | if (PL_op->op_private & HINT_INTEGER) { |
| 1b6737cc | 2311 | const IV i = SvIV_nomg(left) & SvIV_nomg(right); |
| 972b05a9 | 2312 | SETi(i); |
| d0ba1bd2 JH |
2313 | } |
| 2314 | else { | |
| 1b6737cc | 2315 | const UV u = SvUV_nomg(left) & SvUV_nomg(right); |
| 972b05a9 | 2316 | SETu(u); |
| d0ba1bd2 | 2317 | } |
| a0d0e21e LW |
2318 | } |
| 2319 | else { | |
| 533c011a | 2320 | do_vop(PL_op->op_type, TARG, left, right); |
| a0d0e21e LW |
2321 | SETTARG; |
| 2322 | } | |
| 2323 | RETURN; | |
| 2324 | } | |
| 2325 | } | |
| 79072805 | 2326 | |
| a0d0e21e LW |
2327 | PP(pp_bit_or) |
| 2328 | { | |
| 3658c1f1 NC |
2329 | dVAR; dSP; dATARGET; |
| 2330 | const int op_type = PL_op->op_type; | |
| 2331 | ||
| 2332 | tryAMAGICbin_var((op_type == OP_BIT_OR ? bor_amg : bxor_amg), opASSIGN); | |
| a0d0e21e LW |
2333 | { |
| 2334 | dPOPTOPssrl; | |
| 5b295bef RD |
2335 | SvGETMAGIC(left); |
| 2336 | SvGETMAGIC(right); | |
| 4633a7c4 | 2337 | if (SvNIOKp(left) || SvNIOKp(right)) { |
| d0ba1bd2 | 2338 | if (PL_op->op_private & HINT_INTEGER) { |
| 3658c1f1 NC |
2339 | const IV l = (USE_LEFT(left) ? SvIV_nomg(left) : 0); |
| 2340 | const IV r = SvIV_nomg(right); | |
| 2341 | const IV result = op_type == OP_BIT_OR ? (l | r) : (l ^ r); | |
| 2342 | SETi(result); | |
| d0ba1bd2 JH |
2343 | } |
| 2344 | else { | |
| 3658c1f1 NC |
2345 | const UV l = (USE_LEFT(left) ? SvUV_nomg(left) : 0); |
| 2346 | const UV r = SvUV_nomg(right); | |
| 2347 | const UV result = op_type == OP_BIT_OR ? (l | r) : (l ^ r); | |
| 2348 | SETu(result); | |
| d0ba1bd2 | 2349 | } |
| a0d0e21e LW |
2350 | } |
| 2351 | else { | |
| 3658c1f1 | 2352 | do_vop(op_type, TARG, left, right); |
| a0d0e21e LW |
2353 | SETTARG; |
| 2354 | } | |
| 2355 | RETURN; | |
| 79072805 | 2356 | } |
| a0d0e21e | 2357 | } |
| 79072805 | 2358 | |
| a0d0e21e LW |
2359 | PP(pp_negate) |
| 2360 | { | |
| 97aff369 | 2361 | dVAR; dSP; dTARGET; tryAMAGICun(neg); |
| a0d0e21e LW |
2362 | { |
| 2363 | dTOPss; | |
| 1b6737cc | 2364 | const int flags = SvFLAGS(sv); |
| 5b295bef | 2365 | SvGETMAGIC(sv); |
| 28e5dec8 JH |
2366 | if ((flags & SVf_IOK) || ((flags & (SVp_IOK | SVp_NOK)) == SVp_IOK)) { |
| 2367 | /* It's publicly an integer, or privately an integer-not-float */ | |
| 2368 | oops_its_an_int: | |
| 9b0e499b GS |
2369 | if (SvIsUV(sv)) { |
| 2370 | if (SvIVX(sv) == IV_MIN) { | |
| 28e5dec8 | 2371 | /* 2s complement assumption. */ |
| 9b0e499b GS |
2372 | SETi(SvIVX(sv)); /* special case: -((UV)IV_MAX+1) == IV_MIN */ |
| 2373 | RETURN; | |
| 2374 | } | |
| 2375 | else if (SvUVX(sv) <= IV_MAX) { | |
| beccb14c | 2376 | SETi(-SvIVX(sv)); |
| 9b0e499b GS |
2377 | RETURN; |
| 2378 | } | |
| 2379 | } | |
| 2380 | else if (SvIVX(sv) != IV_MIN) { | |
| 2381 | SETi(-SvIVX(sv)); | |
| 2382 | RETURN; | |
| 2383 | } | |
| 28e5dec8 JH |
2384 | #ifdef PERL_PRESERVE_IVUV |
| 2385 | else { | |
| 2386 | SETu((UV)IV_MIN); | |
| 2387 | RETURN; | |
| 2388 | } | |
| 2389 | #endif | |
| 9b0e499b GS |
2390 | } |
| 2391 | if (SvNIOKp(sv)) | |
| a0d0e21e | 2392 | SETn(-SvNV(sv)); |
| 4633a7c4 | 2393 | else if (SvPOKp(sv)) { |
| a0d0e21e | 2394 | STRLEN len; |
| c445ea15 | 2395 | const char * const s = SvPV_const(sv, len); |
| bbce6d69 | 2396 | if (isIDFIRST(*s)) { |
| a0d0e21e LW |
2397 | sv_setpvn(TARG, "-", 1); |
| 2398 | sv_catsv(TARG, sv); | |
| 79072805 | 2399 | } |
| a0d0e21e LW |
2400 | else if (*s == '+' || *s == '-') { |
| 2401 | sv_setsv(TARG, sv); | |
| 2402 | *SvPV_force(TARG, len) = *s == '-' ? '+' : '-'; | |
| 79072805 | 2403 | } |
| 8eb28a70 JH |
2404 | else if (DO_UTF8(sv)) { |
| 2405 | SvIV_please(sv); | |
| 2406 | if (SvIOK(sv)) | |
| 2407 | goto oops_its_an_int; | |
| 2408 | if (SvNOK(sv)) | |
| 2409 | sv_setnv(TARG, -SvNV(sv)); | |
| 2410 | else { | |
| 2411 | sv_setpvn(TARG, "-", 1); | |
| 2412 | sv_catsv(TARG, sv); | |
| 2413 | } | |
| 834a4ddd | 2414 | } |
| 28e5dec8 | 2415 | else { |
| 8eb28a70 JH |
2416 | SvIV_please(sv); |
| 2417 | if (SvIOK(sv)) | |
| 2418 | goto oops_its_an_int; | |
| 2419 | sv_setnv(TARG, -SvNV(sv)); | |
| 28e5dec8 | 2420 | } |
| a0d0e21e | 2421 | SETTARG; |
| 79072805 | 2422 | } |
| 4633a7c4 LW |
2423 | else |
| 2424 | SETn(-SvNV(sv)); | |
| 79072805 | 2425 | } |
| a0d0e21e | 2426 | RETURN; |
| 79072805 LW |
2427 | } |
| 2428 | ||
| a0d0e21e | 2429 | PP(pp_not) |
| 79072805 | 2430 | { |
| 97aff369 | 2431 | dVAR; dSP; tryAMAGICunSET(not); |
| 3280af22 | 2432 | *PL_stack_sp = boolSV(!SvTRUE(*PL_stack_sp)); |
| a0d0e21e | 2433 | return NORMAL; |
| 79072805 LW |
2434 | } |
| 2435 | ||
| a0d0e21e | 2436 | PP(pp_complement) |
| 79072805 | 2437 | { |
| 97aff369 | 2438 | dVAR; dSP; dTARGET; tryAMAGICun(compl); |
| a0d0e21e LW |
2439 | { |
| 2440 | dTOPss; | |
| 5b295bef | 2441 | SvGETMAGIC(sv); |
| 4633a7c4 | 2442 | if (SvNIOKp(sv)) { |
| d0ba1bd2 | 2443 | if (PL_op->op_private & HINT_INTEGER) { |
| 1b6737cc | 2444 | const IV i = ~SvIV_nomg(sv); |
| 972b05a9 | 2445 | SETi(i); |
| d0ba1bd2 JH |
2446 | } |
| 2447 | else { | |
| 1b6737cc | 2448 | const UV u = ~SvUV_nomg(sv); |
| 972b05a9 | 2449 | SETu(u); |
| d0ba1bd2 | 2450 | } |
| a0d0e21e LW |
2451 | } |
| 2452 | else { | |
| 51723571 | 2453 | register U8 *tmps; |
| 55497cff | 2454 | register I32 anum; |
| a0d0e21e LW |
2455 | STRLEN len; |
| 2456 | ||
| 10516c54 | 2457 | (void)SvPV_nomg_const(sv,len); /* force check for uninit var */ |
| 891f9566 | 2458 | sv_setsv_nomg(TARG, sv); |
| 51723571 | 2459 | tmps = (U8*)SvPV_force(TARG, len); |
| a0d0e21e | 2460 | anum = len; |
| 1d68d6cd | 2461 | if (SvUTF8(TARG)) { |
| a1ca4561 | 2462 | /* Calculate exact length, let's not estimate. */ |
| 1d68d6cd | 2463 | STRLEN targlen = 0; |
| ba210ebe | 2464 | STRLEN l; |
| a1ca4561 YST |
2465 | UV nchar = 0; |
| 2466 | UV nwide = 0; | |
| 01f6e806 | 2467 | U8 * const send = tmps + len; |
| 74d49cd0 ST |
2468 | U8 * const origtmps = tmps; |
| 2469 | const UV utf8flags = UTF8_ALLOW_ANYUV; | |
| 1d68d6cd | 2470 | |
| 1d68d6cd | 2471 | while (tmps < send) { |
| 74d49cd0 ST |
2472 | const UV c = utf8n_to_uvchr(tmps, send-tmps, &l, utf8flags); |
| 2473 | tmps += l; | |
| 5bbb0b5a | 2474 | targlen += UNISKIP(~c); |
| a1ca4561 YST |
2475 | nchar++; |
| 2476 | if (c > 0xff) | |
| 2477 | nwide++; | |
| 1d68d6cd SC |
2478 | } |
| 2479 | ||
| 2480 | /* Now rewind strings and write them. */ | |
| 74d49cd0 | 2481 | tmps = origtmps; |
| a1ca4561 YST |
2482 | |
| 2483 | if (nwide) { | |
| 01f6e806 AL |
2484 | U8 *result; |
| 2485 | U8 *p; | |
| 2486 | ||
| 74d49cd0 | 2487 | Newx(result, targlen + 1, U8); |
| 01f6e806 | 2488 | p = result; |
| a1ca4561 | 2489 | while (tmps < send) { |
| 74d49cd0 ST |
2490 | const UV c = utf8n_to_uvchr(tmps, send-tmps, &l, utf8flags); |
| 2491 | tmps += l; | |
| 01f6e806 | 2492 | p = uvchr_to_utf8_flags(p, ~c, UNICODE_ALLOW_ANY); |
| a1ca4561 | 2493 | } |
| 01f6e806 | 2494 | *p = '\0'; |
| c1c21316 NC |
2495 | sv_usepvn_flags(TARG, (char*)result, targlen, |
| 2496 | SV_HAS_TRAILING_NUL); | |
| a1ca4561 YST |
2497 | SvUTF8_on(TARG); |
| 2498 | } | |
| 2499 | else { | |
| 01f6e806 AL |
2500 | U8 *result; |
| 2501 | U8 *p; | |
| 2502 | ||
| 74d49cd0 | 2503 | Newx(result, nchar + 1, U8); |
| 01f6e806 | 2504 | p = result; |
| a1ca4561 | 2505 | while (tmps < send) { |
| 74d49cd0 ST |
2506 | const U8 c = (U8)utf8n_to_uvchr(tmps, send-tmps, &l, utf8flags); |
| 2507 | tmps += l; | |
| 01f6e806 | 2508 | *p++ = ~c; |
| a1ca4561 | 2509 | } |
| 01f6e806 | 2510 | *p = '\0'; |
| c1c21316 | 2511 | sv_usepvn_flags(TARG, (char*)result, nchar, SV_HAS_TRAILING_NUL); |
| d0a21e00 | 2512 | SvUTF8_off(TARG); |
| 1d68d6cd | 2513 | } |
| 1d68d6cd SC |
2514 | SETs(TARG); |
| 2515 | RETURN; | |
| 2516 | } | |
| a0d0e21e | 2517 | #ifdef LIBERAL |
| 51723571 JH |
2518 | { |
| 2519 | register long *tmpl; | |
| 2520 | for ( ; anum && (unsigned long)tmps % sizeof(long); anum--, tmps++) | |
| 2521 | *tmps = ~*tmps; | |
| 2522 | tmpl = (long*)tmps; | |
| bb7a0f54 | 2523 | for ( ; anum >= (I32)sizeof(long); anum -= (I32)sizeof(long), tmpl++) |
| 51723571 JH |
2524 | *tmpl = ~*tmpl; |
| 2525 | tmps = (U8*)tmpl; | |
| 2526 | } | |
| a0d0e21e LW |
2527 | #endif |
| 2528 | for ( ; anum > 0; anum--, tmps++) | |
| 2529 | *tmps = ~*tmps; | |
| 2530 | ||
| 2531 | SETs(TARG); | |
| 2532 | } | |
| 2533 | RETURN; | |
| 2534 | } | |
| 79072805 LW |
2535 | } |
| 2536 | ||
| a0d0e21e LW |
2537 | /* integer versions of some of the above */ |
| 2538 | ||
| a0d0e21e | 2539 | PP(pp_i_multiply) |
| 79072805 | 2540 | { |
| 97aff369 | 2541 | dVAR; dSP; dATARGET; tryAMAGICbin(mult,opASSIGN); |
| a0d0e21e LW |
2542 | { |
| 2543 | dPOPTOPiirl; | |
| 2544 | SETi( left * right ); | |
| 2545 | RETURN; | |
| 2546 | } | |
| 79072805 LW |
2547 | } |
| 2548 | ||
| a0d0e21e | 2549 | PP(pp_i_divide) |
| 79072805 | 2550 | { |
| ece1bcef | 2551 | IV num; |
| 97aff369 | 2552 | dVAR; dSP; dATARGET; tryAMAGICbin(div,opASSIGN); |
| a0d0e21e LW |
2553 | { |
| 2554 | dPOPiv; | |
| 2555 | if (value == 0) | |
| ece1bcef SP |
2556 | DIE(aTHX_ "Illegal division by zero"); |
| 2557 | num = POPi; | |
| a0cec769 YST |
2558 | |
| 2559 | /* avoid FPE_INTOVF on some platforms when num is IV_MIN */ | |
| 2560 | if (value == -1) | |
| 2561 | value = - num; | |
| 2562 | else | |
| 2563 | value = num / value; | |
| a0d0e21e LW |
2564 | PUSHi( value ); |
| 2565 | RETURN; | |
| 2566 | } | |
| 79072805 LW |
2567 | } |
| 2568 | ||
| 224ec323 JH |
2569 | STATIC |
| 2570 | PP(pp_i_modulo_0) | |
| 2571 | { | |
| 2572 | /* This is the vanilla old i_modulo. */ | |
| 27da23d5 | 2573 | dVAR; dSP; dATARGET; tryAMAGICbin(modulo,opASSIGN); |
| 224ec323 JH |
2574 | { |
| 2575 | dPOPTOPiirl; | |
| 2576 | if (!right) | |
| 2577 | DIE(aTHX_ "Illegal modulus zero"); | |
| a0cec769 YST |
2578 | /* avoid FPE_INTOVF on some platforms when left is IV_MIN */ |
| 2579 | if (right == -1) | |
| 2580 | SETi( 0 ); | |
| 2581 | else | |
| 2582 | SETi( left % right ); | |
| 224ec323 JH |
2583 | RETURN; |
| 2584 | } | |
| 2585 | } | |
| 2586 | ||
| 11010fa3 | 2587 | #if defined(__GLIBC__) && IVSIZE == 8 |
| 224ec323 JH |
2588 | STATIC |
| 2589 | PP(pp_i_modulo_1) | |
| 2590 | { | |
| 224ec323 | 2591 | /* This is the i_modulo with the workaround for the _moddi3 bug |
| fce2b89e | 2592 | * in (at least) glibc 2.2.5 (the PERL_ABS() the workaround). |
| 224ec323 | 2593 | * See below for pp_i_modulo. */ |
| 97aff369 | 2594 | dVAR; dVAR; dSP; dATARGET; tryAMAGICbin(modulo,opASSIGN); |
| 224ec323 JH |
2595 | { |
| 2596 | dPOPTOPiirl; | |
| 2597 | if (!right) | |
| 2598 | DIE(aTHX_ "Illegal modulus zero"); | |
| a0cec769 YST |
2599 | /* avoid FPE_INTOVF on some platforms when left is IV_MIN */ |
| 2600 | if (right == -1) | |
| 2601 | SETi( 0 ); | |
| 2602 | else | |
| 2603 | SETi( left % PERL_ABS(right) ); | |
| 224ec323 JH |
2604 | RETURN; |
| 2605 | } | |
| 224ec323 | 2606 | } |
| fce2b89e | 2607 | #endif |
| 224ec323 | 2608 | |
| a0d0e21e | 2609 | PP(pp_i_modulo) |
| 79072805 | 2610 | { |
| 27da23d5 | 2611 | dVAR; dSP; dATARGET; tryAMAGICbin(modulo,opASSIGN); |
| 224ec323 JH |
2612 | { |
| 2613 | dPOPTOPiirl; | |
| 2614 | if (!right) | |
| 2615 | DIE(aTHX_ "Illegal modulus zero"); | |
| 2616 | /* The assumption is to use hereafter the old vanilla version... */ | |
| 2617 | PL_op->op_ppaddr = | |
| 2618 | PL_ppaddr[OP_I_MODULO] = | |
| 1c127fab | 2619 | Perl_pp_i_modulo_0; |
| 224ec323 JH |
2620 | /* .. but if we have glibc, we might have a buggy _moddi3 |
| 2621 | * (at least glicb 2.2.5 is known to have this bug), in other | |
| 2622 | * words our integer modulus with negative quad as the second | |
| 2623 | * argument might be broken. Test for this and re-patch the | |
| 2624 | * opcode dispatch table if that is the case, remembering to | |
| 2625 | * also apply the workaround so that this first round works | |
| 2626 | * right, too. See [perl #9402] for more information. */ | |
| 2627 | #if defined(__GLIBC__) && IVSIZE == 8 | |
| 2628 | { | |
| 2629 | IV l = 3; | |
| 2630 | IV r = -10; | |
| 2631 | /* Cannot do this check with inlined IV constants since | |
| 2632 | * that seems to work correctly even with the buggy glibc. */ | |
| 2633 | if (l % r == -3) { | |
| 2634 | /* Yikes, we have the bug. | |
| 2635 | * Patch in the workaround version. */ | |
| 2636 | PL_op->op_ppaddr = | |
| 2637 | PL_ppaddr[OP_I_MODULO] = | |
| 2638 | &Perl_pp_i_modulo_1; | |
| 2639 | /* Make certain we work right this time, too. */ | |
| 32fdb065 | 2640 | right = PERL_ABS(right); |
| 224ec323 JH |
2641 | } |
| 2642 | } | |
| 2643 | #endif | |
| a0cec769 YST |
2644 | /* avoid FPE_INTOVF on some platforms when left is IV_MIN */ |
| 2645 | if (right == -1) | |
| 2646 | SETi( 0 ); | |
| 2647 | else | |
| 2648 | SETi( left % right ); | |
| 224ec323 JH |
2649 | RETURN; |
| 2650 | } | |
| 79072805 LW |
2651 | } |
| 2652 | ||
| a0d0e21e | 2653 | PP(pp_i_add) |
| 79072805 | 2654 | { |
| 97aff369 | 2655 | dVAR; dSP; dATARGET; tryAMAGICbin(add,opASSIGN); |
| a0d0e21e | 2656 | { |
| 5e66d4f1 | 2657 | dPOPTOPiirl_ul; |
| a0d0e21e LW |
2658 | SETi( left + right ); |
| 2659 | RETURN; | |
| 79072805 | 2660 | } |
| 79072805 LW |
2661 | } |
| 2662 | ||
| a0d0e21e | 2663 | PP(pp_i_subtract) |
| 79072805 | 2664 | { |
| 97aff369 | 2665 | dVAR; dSP; dATARGET; tryAMAGICbin(subtr,opASSIGN); |
| a0d0e21e | 2666 | { |
| 5e66d4f1 | 2667 | dPOPTOPiirl_ul; |
| a0d0e21e LW |
2668 | SETi( left - right ); |
| 2669 | RETURN; | |
| 79072805 | 2670 | } |
| 79072805 LW |
2671 | } |
| 2672 | ||
| a0d0e21e | 2673 | PP(pp_i_lt) |
| 79072805 | 2674 | { |
| 97aff369 | 2675 | dVAR; dSP; tryAMAGICbinSET(lt,0); |
| a0d0e21e LW |
2676 | { |
| 2677 | dPOPTOPiirl; | |
| 54310121 | 2678 | SETs(boolSV(left < right)); |
| a0d0e21e LW |
2679 | RETURN; |
| 2680 | } | |
| 79072805 LW |
2681 | } |
| 2682 | ||
| a0d0e21e | 2683 | PP(pp_i_gt) |
| 79072805 | 2684 | { |
| 97aff369 | 2685 | dVAR; dSP; tryAMAGICbinSET(gt,0); |
| a0d0e21e LW |
2686 | { |
| 2687 | dPOPTOPiirl; | |
| 54310121 | 2688 | SETs(boolSV(left > right)); |
| a0d0e21e LW |
2689 | RETURN; |
| 2690 | } | |
| 79072805 LW |
2691 | } |
| 2692 | ||
| a0d0e21e | 2693 | PP(pp_i_le) |
| 79072805 | 2694 | { |
| 97aff369 | 2695 | dVAR; dSP; tryAMAGICbinSET(le,0); |
| a0d0e21e LW |
2696 | { |
| 2697 | dPOPTOPiirl; | |
| 54310121 | 2698 | SETs(boolSV(left <= right)); |
| a0d0e21e | 2699 | RETURN; |
| 85e6fe83 | 2700 | } |
| 79072805 LW |
2701 | } |
| 2702 | ||
| a0d0e21e | 2703 | PP(pp_i_ge) |
| 79072805 | 2704 | { |
| 97aff369 | 2705 | dVAR; dSP; tryAMAGICbinSET(ge,0); |
| a0d0e21e LW |
2706 | { |
| 2707 | dPOPTOPiirl; | |
| 54310121 | 2708 | SETs(boolSV(left >= right)); |
| a0d0e21e LW |
2709 | RETURN; |
| 2710 | } | |
| 79072805 LW |
2711 | } |
| 2712 | ||
| a0d0e21e | 2713 | PP(pp_i_eq) |
| 79072805 | 2714 | { |
| 97aff369 | 2715 | dVAR; dSP; tryAMAGICbinSET(eq,0); |
| a0d0e21e LW |
2716 | { |
| 2717 | dPOPTOPiirl; | |
| 54310121 | 2718 | SETs(boolSV(left == right)); |
| a0d0e21e LW |
2719 | RETURN; |
| 2720 | } | |
| 79072805 LW |
2721 | } |
| 2722 | ||
| a0d0e21e | 2723 | PP(pp_i_ne) |
| 79072805 | 2724 | { |
| 97aff369 | 2725 | dVAR; dSP; tryAMAGICbinSET(ne,0); |
| a0d0e21e LW |
2726 | { |
| 2727 | dPOPTOPiirl; | |
| 54310121 | 2728 | SETs(boolSV(left != right)); |
| a0d0e21e LW |
2729 | RETURN; |
| 2730 | } | |
| 79072805 LW |
2731 | } |
| 2732 | ||
| a0d0e21e | 2733 | PP(pp_i_ncmp) |
| 79072805 | 2734 | { |
| 97aff369 | 2735 | dVAR; dSP; dTARGET; tryAMAGICbin(ncmp,0); |
| a0d0e21e LW |
2736 | { |
| 2737 | dPOPTOPiirl; | |
| 2738 | I32 value; | |
| 79072805 | 2739 | |
| a0d0e21e | 2740 | if (left > right) |
| 79072805 | 2741 | value = 1; |
| a0d0e21e | 2742 | else if (left < right) |
| 79072805 | 2743 | value = -1; |
| a0d0e21e | 2744 | else |
| 79072805 | 2745 | value = 0; |
| a0d0e21e LW |
2746 | SETi(value); |
| 2747 | RETURN; | |
| 79072805 | 2748 | } |
| 85e6fe83 LW |
2749 | } |
| 2750 | ||
| 2751 | PP(pp_i_negate) | |
| 2752 | { | |
| 97aff369 | 2753 | dVAR; dSP; dTARGET; tryAMAGICun(neg); |
| 85e6fe83 LW |
2754 | SETi(-TOPi); |
| 2755 | RETURN; | |
| 2756 | } | |
| 2757 | ||
| 79072805 LW |
2758 | /* High falutin' math. */ |
| 2759 | ||
| 2760 | PP(pp_atan2) | |
| 2761 | { | |
| 97aff369 | 2762 | dVAR; dSP; dTARGET; tryAMAGICbin(atan2,0); |
| a0d0e21e LW |
2763 | { |
| 2764 | dPOPTOPnnrl; | |
| 65202027 | 2765 | SETn(Perl_atan2(left, right)); |
| a0d0e21e LW |
2766 | RETURN; |
| 2767 | } | |
| 79072805 LW |
2768 | } |
| 2769 | ||
| 2770 | PP(pp_sin) | |
| 2771 | { | |
| 71302fe3 NC |
2772 | dVAR; dSP; dTARGET; |
| 2773 | int amg_type = sin_amg; | |
| 2774 | const char *neg_report = NULL; | |
| bc81784a | 2775 | NV (*func)(NV) = Perl_sin; |
| 71302fe3 NC |
2776 | const int op_type = PL_op->op_type; |
| 2777 | ||
| 2778 | switch (op_type) { | |
| 2779 | case OP_COS: | |
| 2780 | amg_type = cos_amg; | |
| bc81784a | 2781 | func = Perl_cos; |
| 71302fe3 NC |
2782 | break; |
| 2783 | case OP_EXP: | |
| 2784 | amg_type = exp_amg; | |
| bc81784a | 2785 | func = Perl_exp; |
| 71302fe3 NC |
2786 | break; |
| 2787 | case OP_LOG: | |
| 2788 | amg_type = log_amg; | |
| bc81784a | 2789 | func = Perl_log; |
| 71302fe3 NC |
2790 | neg_report = "log"; |
| 2791 | break; | |
| 2792 | case OP_SQRT: | |
| 2793 | amg_type = sqrt_amg; | |
| bc81784a | 2794 | func = Perl_sqrt; |
| 71302fe3 NC |
2795 | neg_report = "sqrt"; |
| 2796 | break; | |
| a0d0e21e | 2797 | } |
| 79072805 | 2798 | |
| 71302fe3 | 2799 | tryAMAGICun_var(amg_type); |
| a0d0e21e | 2800 | { |
| 1b6737cc | 2801 | const NV value = POPn; |
| 71302fe3 NC |
2802 | if (neg_report) { |
| 2803 | if (op_type == OP_LOG ? (value <= 0.0) : (value < 0.0)) { | |
| 2804 | SET_NUMERIC_STANDARD(); | |
| 2805 | DIE(aTHX_ "Can't take %s of %"NVgf, neg_report, value); | |
| 2806 | } | |
| 2807 | } | |
| 2808 | XPUSHn(func(value)); | |
| a0d0e21e LW |
2809 | RETURN; |
| 2810 | } | |
| 79072805 LW |
2811 | } |
| 2812 | ||
| 56cb0a1c AD |
2813 | /* Support Configure command-line overrides for rand() functions. |
| 2814 | After 5.005, perhaps we should replace this by Configure support | |
| 2815 | for drand48(), random(), or rand(). For 5.005, though, maintain | |
| 2816 | compatibility by calling rand() but allow the user to override it. | |
| 2817 | See INSTALL for details. --Andy Dougherty 15 July 1998 | |
| 2818 | */ | |
| 85ab1d1d JH |
2819 | /* Now it's after 5.005, and Configure supports drand48() and random(), |
| 2820 | in addition to rand(). So the overrides should not be needed any more. | |
| 2821 | --Jarkko Hietaniemi 27 September 1998 | |
| 2822 | */ | |
| 2823 | ||
| 2824 | #ifndef HAS_DRAND48_PROTO | |
| 20ce7b12 | 2825 | extern double drand48 (void); |
| 56cb0a1c AD |
2826 | #endif |
| 2827 | ||
| 79072805 LW |
2828 | PP(pp_rand) |
| 2829 | { | |
| 97aff369 | 2830 | dVAR; dSP; dTARGET; |
| 65202027 | 2831 | NV value; |
| 79072805 LW |
2832 | if (MAXARG < 1) |
| 2833 | value = 1.0; | |
| 2834 | else | |
| 2835 | value = POPn; | |
| 2836 | if (value == 0.0) | |
| 2837 | value = 1.0; | |
| 80252599 | 2838 | if (!PL_srand_called) { |
| 85ab1d1d | 2839 | (void)seedDrand01((Rand_seed_t)seed()); |
| 80252599 | 2840 | PL_srand_called = TRUE; |
| 93dc8474 | 2841 | } |
| 85ab1d1d | 2842 | value *= Drand01(); |
| 79072805 LW |
2843 | XPUSHn(value); |
| 2844 | RETURN; | |
| 2845 | } | |
| 2846 | ||
| 2847 | PP(pp_srand) | |
| 2848 | { | |
| 97aff369 | 2849 | dVAR; dSP; |
| 0bd48802 | 2850 | const UV anum = (MAXARG < 1) ? seed() : POPu; |
| 85ab1d1d | 2851 | (void)seedDrand01((Rand_seed_t)anum); |
| 80252599 | 2852 | PL_srand_called = TRUE; |
| 79072805 LW |
2853 | EXTEND(SP, 1); |
| 2854 | RETPUSHYES; | |
| 2855 | } | |
| 2856 | ||
| 79072805 LW |
2857 | PP(pp_int) |
| 2858 | { | |
| 97aff369 | 2859 | dVAR; dSP; dTARGET; tryAMAGICun(int); |
| 774d564b | 2860 | { |
| 1b6737cc | 2861 | const IV iv = TOPi; /* attempt to convert to IV if possible. */ |
| 28e5dec8 JH |
2862 | /* XXX it's arguable that compiler casting to IV might be subtly |
| 2863 | different from modf (for numbers inside (IV_MIN,UV_MAX)) in which | |
| 2864 | else preferring IV has introduced a subtle behaviour change bug. OTOH | |
| 2865 | relying on floating point to be accurate is a bug. */ | |
| 2866 | ||
| 922c4365 MHM |
2867 | if (!SvOK(TOPs)) |
| 2868 | SETu(0); | |
| 2869 | else if (SvIOK(TOPs)) { | |
| 28e5dec8 | 2870 | if (SvIsUV(TOPs)) { |
| 1b6737cc | 2871 | const UV uv = TOPu; |
| 28e5dec8 JH |
2872 | SETu(uv); |
| 2873 | } else | |
| 2874 | SETi(iv); | |
| 2875 | } else { | |
| 1b6737cc | 2876 | const NV value = TOPn; |
| 1048ea30 | 2877 | if (value >= 0.0) { |
| 28e5dec8 JH |
2878 | if (value < (NV)UV_MAX + 0.5) { |
| 2879 | SETu(U_V(value)); | |
| 2880 | } else { | |
| 059a1014 | 2881 | SETn(Perl_floor(value)); |
| 28e5dec8 | 2882 | } |
| 1048ea30 | 2883 | } |
| 28e5dec8 JH |
2884 | else { |
| 2885 | if (value > (NV)IV_MIN - 0.5) { | |
| 2886 | SETi(I_V(value)); | |
| 2887 | } else { | |
| 1bbae031 | 2888 | SETn(Perl_ceil(value)); |
| 28e5dec8 JH |
2889 | } |
| 2890 | } | |
| 774d564b | 2891 | } |
| 79072805 | 2892 | } |
| 79072805 LW |
2893 | RETURN; |
| 2894 | } | |
| 2895 | ||
| 463ee0b2 LW |
2896 | PP(pp_abs) |
| 2897 | { | |
| 97aff369 | 2898 | dVAR; dSP; dTARGET; tryAMAGICun(abs); |
| a0d0e21e | 2899 | { |
| 28e5dec8 | 2900 | /* This will cache the NV value if string isn't actually integer */ |
| 1b6737cc | 2901 | const IV iv = TOPi; |
| a227d84d | 2902 | |
| 922c4365 MHM |
2903 | if (!SvOK(TOPs)) |
| 2904 | SETu(0); | |
| 2905 | else if (SvIOK(TOPs)) { | |
| 28e5dec8 JH |
2906 | /* IVX is precise */ |
| 2907 | if (SvIsUV(TOPs)) { | |
| 2908 | SETu(TOPu); /* force it to be numeric only */ | |
| 2909 | } else { | |
| 2910 | if (iv >= 0) { | |
| 2911 | SETi(iv); | |
| 2912 | } else { | |
| 2913 | if (iv != IV_MIN) { | |
| 2914 | SETi(-iv); | |
| 2915 | } else { | |
| 2916 | /* 2s complement assumption. Also, not really needed as | |
| 2917 | IV_MIN and -IV_MIN should both be %100...00 and NV-able */ | |
| 2918 | SETu(IV_MIN); | |
| 2919 | } | |
| a227d84d | 2920 | } |
| 28e5dec8 JH |
2921 | } |
| 2922 | } else{ | |
| 1b6737cc | 2923 | const NV value = TOPn; |
| 774d564b | 2924 | if (value < 0.0) |
| 1b6737cc | 2925 | SETn(-value); |
| a4474c9e DD |
2926 | else |
| 2927 | SETn(value); | |
| 774d564b | 2928 | } |
| a0d0e21e | 2929 | } |
| 774d564b | 2930 | RETURN; |
| 463ee0b2 LW |
2931 | } |
| 2932 | ||
| 79072805 LW |
2933 | PP(pp_oct) |
| 2934 | { | |
| 97aff369 | 2935 | dVAR; dSP; dTARGET; |
| 5c144d81 | 2936 | const char *tmps; |
| 53305cf1 | 2937 | I32 flags = PERL_SCAN_ALLOW_UNDERSCORES; |
| 6f894ead | 2938 | STRLEN len; |
| 53305cf1 NC |
2939 | NV result_nv; |
| 2940 | UV result_uv; | |
| 1b6737cc | 2941 | SV* const sv = POPs; |
| 79072805 | 2942 | |
| 349d4f2f | 2943 | tmps = (SvPV_const(sv, len)); |
| 2bc69dc4 NIS |
2944 | if (DO_UTF8(sv)) { |
| 2945 | /* If Unicode, try to downgrade | |
| 2946 | * If not possible, croak. */ | |
| 1b6737cc | 2947 | SV* const tsv = sv_2mortal(newSVsv(sv)); |
| 2bc69dc4 NIS |
2948 | |
| 2949 | SvUTF8_on(tsv); | |
| 2950 | sv_utf8_downgrade(tsv, FALSE); | |
| 349d4f2f | 2951 | tmps = SvPV_const(tsv, len); |
| 2bc69dc4 | 2952 | } |
| daa2adfd NC |
2953 | if (PL_op->op_type == OP_HEX) |
| 2954 | goto hex; | |
| 2955 | ||
| 6f894ead | 2956 | while (*tmps && len && isSPACE(*tmps)) |
| 53305cf1 | 2957 | tmps++, len--; |
| 9e24b6e2 | 2958 | if (*tmps == '0') |
| 53305cf1 | 2959 | tmps++, len--; |
| daa2adfd NC |
2960 | if (*tmps == 'x') { |
| 2961 | hex: | |
| 53305cf1 | 2962 | result_uv = grok_hex (tmps, &len, &flags, &result_nv); |
| daa2adfd | 2963 | } |
| 9e24b6e2 | 2964 | else if (*tmps == 'b') |
| 53305cf1 | 2965 | result_uv = grok_bin (tmps, &len, &flags, &result_nv); |
| 464e2e8a | 2966 | else |
| 53305cf1 NC |
2967 | result_uv = grok_oct (tmps, &len, &flags, &result_nv); |
| 2968 | ||
| 2969 | if (flags & PERL_SCAN_GREATER_THAN_UV_MAX) { | |
| 2970 | XPUSHn(result_nv); | |
| 2971 | } | |
| 2972 | else { | |
| 2973 | XPUSHu(result_uv); | |
| 2974 | } | |
| 79072805 LW |
2975 | RETURN; |
| 2976 | } | |
| 2977 | ||
| 2978 | /* String stuff. */ | |
| 2979 | ||
| 2980 | PP(pp_length) | |
| 2981 | { | |
| 97aff369 | 2982 | dVAR; dSP; dTARGET; |
| 0bd48802 | 2983 | SV * const sv = TOPs; |
| a0ed51b3 | 2984 | |
| 92331800 NC |
2985 | if (SvAMAGIC(sv)) { |
| 2986 | /* For an overloaded scalar, we can't know in advance if it's going to | |
| 2987 | be UTF-8 or not. Also, we can't call sv_len_utf8 as it likes to | |
| 2988 | cache the length. Maybe that should be a documented feature of it. | |
| 2989 | */ | |
| 2990 | STRLEN len; | |
| 2991 | const char *const p = SvPV_const(sv, len); | |
| 2992 | ||
| 2993 | if (DO_UTF8(sv)) { | |
| 899be101 | 2994 | SETi(utf8_length((U8*)p, (U8*)p + len)); |
| 92331800 NC |
2995 | } |
| 2996 | else | |
| 2997 | SETi(len); | |
| 2998 | ||
| 2999 | } | |
| 3000 | else if (DO_UTF8(sv)) | |
| 7e2040f0 GS |
3001 | SETi(sv_len_utf8(sv)); |
| 3002 | else | |
| 3003 | SETi(sv_len(sv)); | |
| 79072805 LW |
3004 | RETURN; |
| 3005 | } | |
| 3006 | ||
| 3007 | PP(pp_substr) | |
| 3008 | { | |
| 97aff369 | 3009 | dVAR; dSP; dTARGET; |
| 79072805 | 3010 | SV *sv; |
| 9c5ffd7c | 3011 | I32 len = 0; |
| 463ee0b2 | 3012 | STRLEN curlen; |
| 9402d6ed | 3013 | STRLEN utf8_curlen; |
| 79072805 LW |
3014 | I32 pos; |
| 3015 | I32 rem; | |
| 84902520 | 3016 | I32 fail; |
| 3ca3bb6f YST |
3017 | const int num_args = PL_op->op_private & 7; |
| 3018 | const I32 lvalue = num_args <= 3 && ( PL_op->op_flags & OPf_MOD || LVRET ); | |
| e1ec3a88 | 3019 | const char *tmps; |
| fc15ae8f | 3020 | const I32 arybase = CopARYBASE_get(PL_curcop); |
| 9402d6ed | 3021 | SV *repl_sv = NULL; |
| cbbf8932 | 3022 | const char *repl = NULL; |
| 7b8d334a | 3023 | STRLEN repl_len; |
| 13e30c65 | 3024 | bool repl_need_utf8_upgrade = FALSE; |
| 9402d6ed | 3025 | bool repl_is_utf8 = FALSE; |
| 79072805 | 3026 | |
| 20408e3c | 3027 | SvTAINTED_off(TARG); /* decontaminate */ |
| 7e2040f0 | 3028 | SvUTF8_off(TARG); /* decontaminate */ |
| 78f9721b SM |
3029 | if (num_args > 2) { |
| 3030 | if (num_args > 3) { | |
| 9402d6ed | 3031 | repl_sv = POPs; |
| 83003860 | 3032 | repl = SvPV_const(repl_sv, repl_len); |
| 9402d6ed | 3033 | repl_is_utf8 = DO_UTF8(repl_sv) && SvCUR(repl_sv); |
| 7b8d334a | 3034 | } |
| 79072805 | 3035 | len = POPi; |
| 5d82c453 | 3036 | } |
| 84902520 | 3037 | pos = POPi; |
| 79072805 | 3038 | sv = POPs; |
| 849ca7ee | 3039 | PUTBACK; |
| 9402d6ed JH |
3040 | if (repl_sv) { |
| 3041 | if (repl_is_utf8) { | |
| 3042 | if (!DO_UTF8(sv)) | |
| 3043 | sv_utf8_upgrade(sv); | |
| 3044 | } | |
| 13e30c65 JH |
3045 | else if (DO_UTF8(sv)) |
| 3046 | repl_need_utf8_upgrade = TRUE; | |
| 9402d6ed | 3047 | } |
| 5c144d81 | 3048 | tmps = SvPV_const(sv, curlen); |
| 7e2040f0 | 3049 | if (DO_UTF8(sv)) { |
| 9402d6ed JH |
3050 | utf8_curlen = sv_len_utf8(sv); |
| 3051 | if (utf8_curlen == curlen) | |
| 3052 | utf8_curlen = 0; | |
| a0ed51b3 | 3053 | else |
| 9402d6ed | 3054 | curlen = utf8_curlen; |
| a0ed51b3 | 3055 | } |
| d1c2b58a | 3056 | else |
| 9402d6ed | 3057 | utf8_curlen = 0; |
| a0ed51b3 | 3058 | |
| 84902520 TB |
3059 | if (pos >= arybase) { |
| 3060 | pos -= arybase; | |
| 3061 | rem = curlen-pos; | |
| 3062 | fail = rem; | |
| 78f9721b | 3063 | if (num_args > 2) { |
| 5d82c453 GA |
3064 | if (len < 0) { |
| 3065 | rem += len; | |
| 3066 | if (rem < 0) | |
| 3067 | rem = 0; | |
| 3068 | } | |
| 3069 | else if (rem > len) | |
| 3070 | rem = len; | |
| 3071 | } | |
| 68dc0745 | 3072 | } |
| 84902520 | 3073 | else { |
| 5d82c453 | 3074 | pos += curlen; |
| 78f9721b | 3075 | if (num_args < 3) |
| 5d82c453 GA |
3076 | rem = curlen; |
| 3077 | else if (len >= 0) { | |
| 3078 | rem = pos+len; | |
| 3079 | if (rem > (I32)curlen) | |
| 3080 | rem = curlen; | |
| 3081 | } | |
| 3082 | else { | |
| 3083 | rem = curlen+len; | |
| 3084 | if (rem < pos) | |
| 3085 | rem = pos; | |
| 3086 | } | |
| 3087 | if (pos < 0) | |
| 3088 | pos = 0; | |
| 3089 | fail = rem; | |
| 3090 | rem -= pos; | |
| 84902520 TB |
3091 | } |
| 3092 | if (fail < 0) { | |
| e476b1b5 GS |
3093 | if (lvalue || repl) |
| 3094 | Perl_croak(aTHX_ "substr outside of string"); | |
| 3095 | if (ckWARN(WARN_SUBSTR)) | |
| 9014280d | 3096 | Perl_warner(aTHX_ packWARN(WARN_SUBSTR), "substr outside of string"); |
| 2304df62 AD |
3097 | RETPUSHUNDEF; |
| 3098 | } | |
| 79072805 | 3099 | else { |
| 1b6737cc AL |
3100 | const I32 upos = pos; |
| 3101 | const I32 urem = rem; | |
| 9402d6ed | 3102 | if (utf8_curlen) |
| a0ed51b3 | 3103 | sv_pos_u2b(sv, &pos, &rem); |
| 79072805 | 3104 | tmps += pos; |
| 781e7547 DM |
3105 | /* we either return a PV or an LV. If the TARG hasn't been used |
| 3106 | * before, or is of that type, reuse it; otherwise use a mortal | |
| 3107 | * instead. Note that LVs can have an extended lifetime, so also | |
| 3108 | * dont reuse if refcount > 1 (bug #20933) */ | |
| 3109 | if (SvTYPE(TARG) > SVt_NULL) { | |
| 3110 | if ( (SvTYPE(TARG) == SVt_PVLV) | |
| 3111 | ? (!lvalue || SvREFCNT(TARG) > 1) | |
| 3112 | : lvalue) | |
| 3113 | { | |
| 3114 | TARG = sv_newmortal(); | |
| 3115 | } | |
| 3116 | } | |
| 3117 | ||
| 366e98c3 | 3118 | if (GIMME_V != G_VOID && !lvalue) |
| 3ca3bb6f | 3119 | sv_setpvn(TARG, tmps, rem); |
| 12aa1545 | 3120 | #ifdef USE_LOCALE_COLLATE |
| 14befaf4 | 3121 | sv_unmagic(TARG, PERL_MAGIC_collxfrm); |
| 12aa1545 | 3122 | #endif |
| 9402d6ed | 3123 | if (utf8_curlen) |
| 7f66633b | 3124 | SvUTF8_on(TARG); |
| f7928d6c | 3125 | if (repl) { |
| 13e30c65 JH |
3126 | SV* repl_sv_copy = NULL; |
| 3127 | ||
| 3128 | if (repl_need_utf8_upgrade) { | |
| 3129 | repl_sv_copy = newSVsv(repl_sv); | |
| 3130 | sv_utf8_upgrade(repl_sv_copy); | |
| 349d4f2f | 3131 | repl = SvPV_const(repl_sv_copy, repl_len); |
| 13e30c65 JH |
3132 | repl_is_utf8 = DO_UTF8(repl_sv_copy) && SvCUR(sv); |
| 3133 | } | |
| c8faf1c5 | 3134 | sv_insert(sv, pos, rem, repl, repl_len); |
| 9402d6ed | 3135 | if (repl_is_utf8) |
| f7928d6c | 3136 | SvUTF8_on(sv); |
| 9402d6ed JH |
3137 | if (repl_sv_copy) |
| 3138 | SvREFCNT_dec(repl_sv_copy); | |
| f7928d6c | 3139 | } |
| c8faf1c5 | 3140 | else if (lvalue) { /* it's an lvalue! */ |
| dedeecda PP |
3141 | if (!SvGMAGICAL(sv)) { |
| 3142 | if (SvROK(sv)) { | |
| 13c5b33c | 3143 | SvPV_force_nolen(sv); |
| 599cee73 | 3144 | if (ckWARN(WARN_SUBSTR)) |
| 9014280d | 3145 | Perl_warner(aTHX_ packWARN(WARN_SUBSTR), |
| 599cee73 | 3146 | "Attempt to use reference as lvalue in substr"); |
| dedeecda | 3147 | } |
| f7877b28 NC |
3148 | if (isGV_with_GP(sv)) |
| 3149 | SvPV_force_nolen(sv); | |
| 3150 | else if (SvOK(sv)) /* is it defined ? */ | |
| 7f66633b | 3151 | (void)SvPOK_only_UTF8(sv); |
| dedeecda PP |
3152 | else |
| 3153 | sv_setpvn(sv,"",0); /* avoid lexical reincarnation */ | |
| 3154 | } | |
| 5f05dabc | 3155 | |
| a0d0e21e LW |
3156 | if (SvTYPE(TARG) < SVt_PVLV) { |
| 3157 | sv_upgrade(TARG, SVt_PVLV); | |
| c445ea15 | 3158 | sv_magic(TARG, NULL, PERL_MAGIC_substr, NULL, 0); |
| ed6116ce | 3159 | } |
| a0d0e21e | 3160 | |
| 5f05dabc | 3161 | LvTYPE(TARG) = 'x'; |
| 6ff81951 GS |
3162 | if (LvTARG(TARG) != sv) { |
| 3163 | if (LvTARG(TARG)) | |
| 3164 | SvREFCNT_dec(LvTARG(TARG)); | |
| b37c2d43 | 3165 | LvTARG(TARG) = SvREFCNT_inc_simple(sv); |
| 6ff81951 | 3166 | } |
| 9aa983d2 JH |
3167 | LvTARGOFF(TARG) = upos; |
| 3168 | LvTARGLEN(TARG) = urem; | |
| 79072805 LW |
3169 | } |
| 3170 | } | |
| 849ca7ee | 3171 | SPAGAIN; |
| 79072805 LW |
3172 | PUSHs(TARG); /* avoid SvSETMAGIC here */ |
| 3173 | RETURN; | |
| 3174 | } | |
| 3175 | ||
| 3176 | PP(pp_vec) | |
| 3177 | { | |
| 97aff369 | 3178 | dVAR; dSP; dTARGET; |
| 1b6737cc AL |
3179 | register const IV size = POPi; |
| 3180 | register const IV offset = POPi; | |
| 3181 | register SV * const src = POPs; | |
| 3182 | const I32 lvalue = PL_op->op_flags & OPf_MOD || LVRET; | |
| a0d0e21e | 3183 | |
| 81e118e0 JH |
3184 | SvTAINTED_off(TARG); /* decontaminate */ |
| 3185 | if (lvalue) { /* it's an lvalue! */ | |
| 24aef97f HS |
3186 | if (SvREFCNT(TARG) > 1) /* don't share the TARG (#20933) */ |
| 3187 | TARG = sv_newmortal(); | |
| 81e118e0 JH |
3188 | if (SvTYPE(TARG) < SVt_PVLV) { |
| 3189 | sv_upgrade(TARG, SVt_PVLV); | |
| c445ea15 | 3190 | sv_magic(TARG, NULL, PERL_MAGIC_vec, NULL, 0); |
| 79072805 | 3191 | } |
| 81e118e0 JH |
3192 | LvTYPE(TARG) = 'v'; |
| 3193 | if (LvTARG(TARG) != src) { | |
| 3194 | if (LvTARG(TARG)) | |
| 3195 | SvREFCNT_dec(LvTARG(TARG)); | |
| b37c2d43 | 3196 | LvTARG(TARG) = SvREFCNT_inc_simple(src); |
| 79072805 | 3197 | } |
| 81e118e0 JH |
3198 | LvTARGOFF(TARG) = offset; |
| 3199 | LvTARGLEN(TARG) = size; | |
| 79072805 LW |
3200 | } |
| 3201 | ||
| 81e118e0 | 3202 | sv_setuv(TARG, do_vecget(src, offset, size)); |
| 79072805 LW |
3203 | PUSHs(TARG); |
| 3204 | RETURN; | |
| 3205 | } | |
| 3206 | ||
| 3207 | PP(pp_index) | |
| 3208 | { | |
| 97aff369 | 3209 | dVAR; dSP; dTARGET; |
| 79072805 LW |
3210 | SV *big; |
| 3211 | SV *little; | |
| c445ea15 | 3212 | SV *temp = NULL; |
| ad66a58c | 3213 | STRLEN biglen; |
| 2723d216 | 3214 | STRLEN llen = 0; |
| 79072805 LW |
3215 | I32 offset; |
| 3216 | I32 retval; | |
| 73ee8be2 NC |
3217 | const char *big_p; |
| 3218 | const char *little_p; | |
| fc15ae8f | 3219 | const I32 arybase = CopARYBASE_get(PL_curcop); |
| 2f040f7f NC |
3220 | bool big_utf8; |
| 3221 | bool little_utf8; | |
| 2723d216 | 3222 | const bool is_index = PL_op->op_type == OP_INDEX; |
| 79072805 | 3223 | |
| 2723d216 NC |
3224 | if (MAXARG >= 3) { |
| 3225 | /* arybase is in characters, like offset, so combine prior to the | |
| 3226 | UTF-8 to bytes calculation. */ | |
| 79072805 | 3227 | offset = POPi - arybase; |
| 2723d216 | 3228 | } |
| 79072805 LW |
3229 | little = POPs; |
| 3230 | big = POPs; | |
| 73ee8be2 NC |
3231 | big_p = SvPV_const(big, biglen); |
| 3232 | little_p = SvPV_const(little, llen); | |
| 3233 | ||
| e609e586 NC |
3234 | big_utf8 = DO_UTF8(big); |
| 3235 | little_utf8 = DO_UTF8(little); | |
| 3236 | if (big_utf8 ^ little_utf8) { | |
| 3237 | /* One needs to be upgraded. */ | |
| 2f040f7f NC |
3238 | if (little_utf8 && !PL_encoding) { |
| 3239 | /* Well, maybe instead we might be able to downgrade the small | |
| 3240 | string? */ | |
| 1eced8f8 | 3241 | char * const pv = (char*)bytes_from_utf8((U8 *)little_p, &llen, |
| 2f040f7f NC |
3242 | &little_utf8); |
| 3243 | if (little_utf8) { | |
| 3244 | /* If the large string is ISO-8859-1, and it's not possible to | |
| 3245 | convert the small string to ISO-8859-1, then there is no | |
| 3246 | way that it could be found anywhere by index. */ | |
| 3247 | retval = -1; | |
| 3248 | goto fail; | |
| 3249 | } | |
| e609e586 | 3250 | |
| 2f040f7f NC |
3251 | /* At this point, pv is a malloc()ed string. So donate it to temp |
| 3252 | to ensure it will get free()d */ | |
| 3253 | little = temp = newSV(0); | |
| 73ee8be2 NC |
3254 | sv_usepvn(temp, pv, llen); |
| 3255 | little_p = SvPVX(little); | |
| e609e586 | 3256 | } else { |
| 73ee8be2 NC |
3257 | temp = little_utf8 |
| 3258 | ? newSVpvn(big_p, biglen) : newSVpvn(little_p, llen); | |
| 2f040f7f NC |
3259 | |
| 3260 | if (PL_encoding) { | |
| 3261 | sv_recode_to_utf8(temp, PL_encoding); | |
| 3262 | } else { | |
| 3263 | sv_utf8_upgrade(temp); | |
| 3264 | } | |
| 3265 | if (little_utf8) { | |
| 3266 | big = temp; | |
| 3267 | big_utf8 = TRUE; | |
| 73ee8be2 | 3268 | big_p = SvPV_const(big, biglen); |
| 2f040f7f NC |
3269 | } else { |
| 3270 | little = temp; | |
| 73ee8be2 | 3271 | little_p = SvPV_const(little, llen); |
| 2f040f7f | 3272 | } |
| e609e586 NC |
3273 | } |
| 3274 | } | |
| 73ee8be2 NC |
3275 | if (SvGAMAGIC(big)) { |
| 3276 | /* Life just becomes a lot easier if I use a temporary here. | |
| 3277 | Otherwise I need to avoid calls to sv_pos_u2b(), which (dangerously) | |
| 3278 | will trigger magic and overloading again, as will fbm_instr() | |
| 3279 | */ | |
| 3280 | big = sv_2mortal(newSVpvn(big_p, biglen)); | |
| 3281 | if (big_utf8) | |
| 3282 | SvUTF8_on(big); | |
| 3283 | big_p = SvPVX(big); | |
| 3284 | } | |
| e4e44778 | 3285 | if (SvGAMAGIC(little) || (is_index && !SvOK(little))) { |
| 73ee8be2 NC |
3286 | /* index && SvOK() is a hack. fbm_instr() calls SvPV_const, which will |
| 3287 | warn on undef, and we've already triggered a warning with the | |
| 3288 | SvPV_const some lines above. We can't remove that, as we need to | |
| 3289 | call some SvPV to trigger overloading early and find out if the | |
| 3290 | string is UTF-8. | |
| 3291 | This is all getting to messy. The API isn't quite clean enough, | |
| 3292 | because data access has side effects. | |
| 3293 | */ | |
| 3294 | little = sv_2mortal(newSVpvn(little_p, llen)); | |
| 3295 | if (little_utf8) | |
| 3296 | SvUTF8_on(little); | |
| 3297 | little_p = SvPVX(little); | |
| 3298 | } | |
| e609e586 | 3299 | |
| 79072805 | 3300 | if (MAXARG < 3) |
| 2723d216 | 3301 | offset = is_index ? 0 : biglen; |
| a0ed51b3 | 3302 | else { |
| ad66a58c | 3303 | if (big_utf8 && offset > 0) |
| a0ed51b3 | 3304 | sv_pos_u2b(big, &offset, 0); |
| 73ee8be2 NC |
3305 | if (!is_index) |
| 3306 | offset += llen; | |
| a0ed51b3 | 3307 | } |
| 79072805 LW |
3308 | if (offset < 0) |
| 3309 | offset = 0; | |
| ad66a58c NC |
3310 | else if (offset > (I32)biglen) |
| 3311 | offset = biglen; | |
| 73ee8be2 NC |
3312 | if (!(little_p = is_index |
| 3313 | ? fbm_instr((unsigned char*)big_p + offset, | |
| 3314 | (unsigned char*)big_p + biglen, little, 0) | |
| 3315 | : rninstr(big_p, big_p + offset, | |
| 3316 | little_p, little_p + llen))) | |
| a0ed51b3 | 3317 | retval = -1; |
| ad66a58c | 3318 | else { |
| 73ee8be2 | 3319 | retval = little_p - big_p; |
| ad66a58c NC |
3320 | if (retval > 0 && big_utf8) |
| 3321 | sv_pos_b2u(big, &retval); | |
| 3322 | } | |
| e609e586 NC |
3323 | if (temp) |
| 3324 | SvREFCNT_dec(temp); | |
| 2723d216 | 3325 | fail: |
| a0ed51b3 | 3326 | PUSHi(retval + arybase); |
| 79072805 LW |
3327 | RETURN; |
| 3328 | } | |
| 3329 | ||
| 3330 | PP(pp_sprintf) | |
| 3331 | { | |
| 97aff369 | 3332 | dVAR; dSP; dMARK; dORIGMARK; dTARGET; |
| 20ee07fb RGS |
3333 | if (SvTAINTED(MARK[1])) |
| 3334 | TAINT_PROPER("sprintf"); | |
| 79072805 | 3335 | do_sprintf(TARG, SP-MARK, MARK+1); |
| bbce6d69 | 3336 | TAINT_IF(SvTAINTED(TARG)); |
| 79072805 LW |
3337 | SP = ORIGMARK; |
| 3338 | PUSHTARG; | |
| 3339 | RETURN; | |
| 3340 | } | |
| 3341 | ||
| 79072805 LW |
3342 | PP(pp_ord) |
| 3343 | { | |
| 97aff369 | 3344 | dVAR; dSP; dTARGET; |
| 1eced8f8 | 3345 | |
| 7df053ec | 3346 | SV *argsv = POPs; |
| ba210ebe | 3347 | STRLEN len; |
| 349d4f2f | 3348 | const U8 *s = (U8*)SvPV_const(argsv, len); |
| 121910a4 | 3349 | |
| 799ef3cb | 3350 | if (PL_encoding && SvPOK(argsv) && !DO_UTF8(argsv)) { |
| 1eced8f8 | 3351 | SV * const tmpsv = sv_2mortal(newSVsv(argsv)); |
| 799ef3cb | 3352 | s = (U8*)sv_recode_to_utf8(tmpsv, PL_encoding); |
| 121910a4 JH |
3353 | argsv = tmpsv; |
| 3354 | } | |
| 79072805 | 3355 | |
| 872c91ae | 3356 | XPUSHu(DO_UTF8(argsv) ? |
| 89ebb4a3 | 3357 | utf8n_to_uvchr(s, UTF8_MAXBYTES, 0, UTF8_ALLOW_ANYUV) : |
| 872c91ae | 3358 | (*s & 0xff)); |
| 68795e93 | 3359 | |
| 79072805 LW |
3360 | RETURN; |
| 3361 | } | |
| 3362 | ||
| 463ee0b2 LW |
3363 | PP(pp_chr) |
| 3364 | { | |
| 97aff369 | 3365 | dVAR; dSP; dTARGET; |
| 463ee0b2 | 3366 | char *tmps; |
| 8a064bd6 JH |
3367 | UV value; |
| 3368 | ||
| 3369 | if (((SvIOK_notUV(TOPs) && SvIV(TOPs) < 0) | |
| 3370 | || | |
| 3371 | (SvNOK(TOPs) && SvNV(TOPs) < 0.0))) { | |
| 3372 | if (IN_BYTES) { | |
| 3373 | value = POPu; /* chr(-1) eq chr(0xff), etc. */ | |
| 3374 | } else { | |
| 3375 | (void) POPs; /* Ignore the argument value. */ | |
| 3376 | value = UNICODE_REPLACEMENT; | |
| 3377 | } | |
| 3378 | } else { | |
| 3379 | value = POPu; | |
| 3380 | } | |
| 463ee0b2 | 3381 | |
| 862a34c6 | 3382 | SvUPGRADE(TARG,SVt_PV); |
| a0ed51b3 | 3383 | |
| 0064a8a9 | 3384 | if (value > 255 && !IN_BYTES) { |
| eb160463 | 3385 | SvGROW(TARG, (STRLEN)UNISKIP(value)+1); |
| 62961d2e | 3386 | tmps = (char*)uvchr_to_utf8_flags((U8*)SvPVX(TARG), value, 0); |
| 349d4f2f | 3387 | SvCUR_set(TARG, tmps - SvPVX_const(TARG)); |
| a0ed51b3 LW |
3388 | *tmps = '\0'; |
| 3389 | (void)SvPOK_only(TARG); | |
| aa6ffa16 | 3390 | SvUTF8_on(TARG); |
| a0ed51b3 LW |
3391 | XPUSHs(TARG); |
| 3392 | RETURN; | |
| 3393 | } | |
| 3394 | ||
| 748a9306 | 3395 | SvGROW(TARG,2); |
| 463ee0b2 LW |
3396 | SvCUR_set(TARG, 1); |
| 3397 | tmps = SvPVX(TARG); | |
| eb160463 | 3398 | *tmps++ = (char)value; |
| 748a9306 | 3399 | *tmps = '\0'; |
| a0d0e21e | 3400 | (void)SvPOK_only(TARG); |
| 4c5ed6e2 | 3401 | |
| 88632417 | 3402 | if (PL_encoding && !IN_BYTES) { |
| 799ef3cb | 3403 | sv_recode_to_utf8(TARG, PL_encoding); |
| 88632417 JH |
3404 | tmps = SvPVX(TARG); |
| 3405 | if (SvCUR(TARG) == 0 || !is_utf8_string((U8*)tmps, SvCUR(TARG)) || | |
| 4c5ed6e2 ST |
3406 | UNICODE_IS_REPLACEMENT(utf8_to_uvchr((U8*)tmps, NULL))) { |
| 3407 | SvGROW(TARG, 2); | |
| d5a15ac2 | 3408 | tmps = SvPVX(TARG); |
| 4c5ed6e2 ST |
3409 | SvCUR_set(TARG, 1); |
| 3410 | *tmps++ = (char)value; | |
| 88632417 | 3411 | *tmps = '\0'; |
| 4c5ed6e2 | 3412 | SvUTF8_off(TARG); |
| 88632417 JH |
3413 | } |
| 3414 | } | |
| 4c5ed6e2 | 3415 | |
| 463ee0b2 LW |
3416 | XPUSHs(TARG); |
| 3417 | RETURN; | |
| 3418 | } | |
| 3419 | ||
| 79072805 LW |
3420 | PP(pp_crypt) |
| 3421 | { | |
| 79072805 | 3422 | #ifdef HAS_CRYPT |
| 97aff369 | 3423 | dVAR; dSP; dTARGET; |
| 5f74f29c | 3424 | dPOPTOPssrl; |
| 85c16d83 | 3425 | STRLEN len; |
| 10516c54 | 3426 | const char *tmps = SvPV_const(left, len); |
| 2bc69dc4 | 3427 | |
| 85c16d83 | 3428 | if (DO_UTF8(left)) { |
| 2bc69dc4 | 3429 | /* If Unicode, try to downgrade. |
| f2791508 JH |
3430 | * If not possible, croak. |
| 3431 | * Yes, we made this up. */ | |
| 1b6737cc | 3432 | SV* const tsv = sv_2mortal(newSVsv(left)); |
| 2bc69dc4 | 3433 | |
| f2791508 | 3434 | SvUTF8_on(tsv); |
| 2bc69dc4 | 3435 | sv_utf8_downgrade(tsv, FALSE); |
| 349d4f2f | 3436 | tmps = SvPV_const(tsv, len); |
| 85c16d83 | 3437 | } |
| 05404ffe JH |
3438 | # ifdef USE_ITHREADS |
| 3439 | # ifdef HAS_CRYPT_R | |
| 3440 | if (!PL_reentrant_buffer->_crypt_struct_buffer) { | |
| 3441 | /* This should be threadsafe because in ithreads there is only | |
| 3442 | * one thread per interpreter. If this would not be true, | |
| 3443 | * we would need a mutex to protect this malloc. */ | |
| 3444 | PL_reentrant_buffer->_crypt_struct_buffer = | |
| 3445 | (struct crypt_data *)safemalloc(sizeof(struct crypt_data)); | |
| 3446 | #if defined(__GLIBC__) || defined(__EMX__) | |
| 3447 | if (PL_reentrant_buffer->_crypt_struct_buffer) { | |
| 3448 | PL_reentrant_buffer->_crypt_struct_buffer->initialized = 0; | |
| 3449 | /* work around glibc-2.2.5 bug */ | |
| 3450 | PL_reentrant_buffer->_crypt_struct_buffer->current_saltbits = 0; | |
| 3451 | } | |
| 05404ffe | 3452 | #endif |
| 6ab58e4d | 3453 | } |
| 05404ffe JH |
3454 | # endif /* HAS_CRYPT_R */ |
| 3455 | # endif /* USE_ITHREADS */ | |
| 5f74f29c | 3456 | # ifdef FCRYPT |
| 83003860 | 3457 | sv_setpv(TARG, fcrypt(tmps, SvPV_nolen_const(right))); |
| 5f74f29c | 3458 | # else |
| 83003860 | 3459 | sv_setpv(TARG, PerlProc_crypt(tmps, SvPV_nolen_const(right))); |
| 5f74f29c | 3460 | # endif |
| 4808266b JH |
3461 | SETs(TARG); |
| 3462 | RETURN; | |
| 79072805 | 3463 | #else |
| b13b2135 | 3464 | DIE(aTHX_ |
| 79072805 LW |
3465 | "The crypt() function is unimplemented due to excessive paranoia."); |
| 3466 | #endif | |
| 79072805 LW |
3467 | } |
| 3468 | ||
| 3469 | PP(pp_ucfirst) | |
| 3470 | { | |
| 97aff369 | 3471 | dVAR; |
| 39644a26 | 3472 | dSP; |
| d54190f6 | 3473 | SV *source = TOPs; |
| a0ed51b3 | 3474 | STRLEN slen; |
| d54190f6 NC |
3475 | STRLEN need; |
| 3476 | SV *dest; | |
| 3477 | bool inplace = TRUE; | |
| 3478 | bool doing_utf8; | |
| 12e9c124 | 3479 | const int op_type = PL_op->op_type; |
| d54190f6 NC |
3480 | const U8 *s; |
| 3481 | U8 *d; | |
| 3482 | U8 tmpbuf[UTF8_MAXBYTES_CASE+1]; | |
| 3483 | STRLEN ulen; | |
| 3484 | STRLEN tculen; | |
| 3485 | ||
| 3486 | SvGETMAGIC(source); | |
| 3487 | if (SvOK(source)) { | |
| 3488 | s = (const U8*)SvPV_nomg_const(source, slen); | |
| 3489 | } else { | |
| 1eced8f8 | 3490 | s = (const U8*)""; |
| d54190f6 NC |
3491 | slen = 0; |
| 3492 | } | |
| a0ed51b3 | 3493 | |
| d54190f6 NC |
3494 | if (slen && DO_UTF8(source) && UTF8_IS_START(*s)) { |
| 3495 | doing_utf8 = TRUE; | |
| 44bc797b | 3496 | utf8_to_uvchr(s, &ulen); |
| 12e9c124 NC |
3497 | if (op_type == OP_UCFIRST) { |
| 3498 | toTITLE_utf8(s, tmpbuf, &tculen); | |
| 3499 | } else { | |
| 3500 | toLOWER_utf8(s, tmpbuf, &tculen); | |
| 3501 | } | |
| d54190f6 | 3502 | /* If the two differ, we definately cannot do inplace. */ |
| 1eced8f8 | 3503 | inplace = (ulen == tculen); |
| d54190f6 NC |
3504 | need = slen + 1 - ulen + tculen; |
| 3505 | } else { | |
| 3506 | doing_utf8 = FALSE; | |
| 3507 | need = slen + 1; | |
| 3508 | } | |
| 3509 | ||
| 3510 | if (SvPADTMP(source) && !SvREADONLY(source) && inplace) { | |
| 3511 | /* We can convert in place. */ | |
| 3512 | ||
| 3513 | dest = source; | |
| 3514 | s = d = (U8*)SvPV_force_nomg(source, slen); | |
| 3515 | } else { | |
| 3516 | dTARGET; | |
| 3517 | ||
| 3518 | dest = TARG; | |
| 3519 | ||
| 3520 | SvUPGRADE(dest, SVt_PV); | |
| 3b416f41 | 3521 | d = (U8*)SvGROW(dest, need); |
| d54190f6 NC |
3522 | (void)SvPOK_only(dest); |
| 3523 | ||
| 3524 | SETs(dest); | |
| 3525 | ||
| 3526 | inplace = FALSE; | |
| 3527 | } | |
| 44bc797b | 3528 | |
| d54190f6 NC |
3529 | if (doing_utf8) { |
| 3530 | if(!inplace) { | |
| 3a2263fe RGS |
3531 | /* slen is the byte length of the whole SV. |
| 3532 | * ulen is the byte length of the original Unicode character | |
| 3533 | * stored as UTF-8 at s. | |
| 12e9c124 NC |
3534 | * tculen is the byte length of the freshly titlecased (or |
| 3535 | * lowercased) Unicode character stored as UTF-8 at tmpbuf. | |
| 3536 | * We first set the result to be the titlecased (/lowercased) | |
| 3537 | * character, and then append the rest of the SV data. */ | |
| d54190f6 | 3538 | sv_setpvn(dest, (char*)tmpbuf, tculen); |
| 3a2263fe | 3539 | if (slen > ulen) |
| d54190f6 NC |
3540 | sv_catpvn(dest, (char*)(s + ulen), slen - ulen); |
| 3541 | SvUTF8_on(dest); | |
| a0ed51b3 LW |
3542 | } |
| 3543 | else { | |
| d54190f6 NC |
3544 | Copy(tmpbuf, d, tculen, U8); |
| 3545 | SvCUR_set(dest, need - 1); | |
| a0ed51b3 | 3546 | } |
| a0ed51b3 | 3547 | } |
| 626727d5 | 3548 | else { |
| d54190f6 | 3549 | if (*s) { |
| 2de3dbcc | 3550 | if (IN_LOCALE_RUNTIME) { |
| 31351b04 | 3551 | TAINT; |
| d54190f6 NC |
3552 | SvTAINTED_on(dest); |
| 3553 | *d = (op_type == OP_UCFIRST) | |
| 3554 | ? toUPPER_LC(*s) : toLOWER_LC(*s); | |
| 31351b04 JS |
3555 | } |
| 3556 | else | |
| d54190f6 NC |
3557 | *d = (op_type == OP_UCFIRST) ? toUPPER(*s) : toLOWER(*s); |
| 3558 | } else { | |
| 3559 | /* See bug #39028 */ | |
| 3560 | *d = *s; | |
| 3561 | } | |
| 3562 | ||
| 3563 | if (SvUTF8(source)) | |
| 3564 | SvUTF8_on(dest); | |
| 3565 | ||
| 3566 | if (!inplace) { | |
| 3567 | /* This will copy the trailing NUL */ | |
| 3568 | Copy(s + 1, d + 1, slen, U8); | |
| 3569 | SvCUR_set(dest, need - 1); | |
| bbce6d69 | 3570 | } |
| bbce6d69 | 3571 | } |
| d54190f6 | 3572 | SvSETMAGIC(dest); |
| 79072805 LW |
3573 | RETURN; |
| 3574 | } | |
| 3575 | ||
| 67306194 NC |
3576 | /* There's so much setup/teardown code common between uc and lc, I wonder if |
| 3577 | it would be worth merging the two, and just having a switch outside each | |
| 3578 | of the three tight loops. */ | |
| 79072805 LW |
3579 | PP(pp_uc) |
| 3580 | { | |
| 97aff369 | 3581 | dVAR; |
| 39644a26 | 3582 | dSP; |
| 67306194 | 3583 | SV *source = TOPs; |
| 463ee0b2 | 3584 | STRLEN len; |
| 67306194 NC |
3585 | STRLEN min; |
| 3586 | SV *dest; | |
| 3587 | const U8 *s; | |
| 3588 | U8 *d; | |
| 79072805 | 3589 | |
| 67306194 NC |
3590 | SvGETMAGIC(source); |
| 3591 | ||
| 3592 | if (SvPADTMP(source) && !SvREADONLY(source) && !SvAMAGIC(source) | |
| 3593 | && !DO_UTF8(source)) { | |
| 3594 | /* We can convert in place. */ | |
| 3595 | ||
| 3596 | dest = source; | |
| 3597 | s = d = (U8*)SvPV_force_nomg(source, len); | |
| 3598 | min = len + 1; | |
| 3599 | } else { | |
| a0ed51b3 | 3600 | dTARGET; |
| a0ed51b3 | 3601 | |
| 67306194 | 3602 | dest = TARG; |
| 128c9517 | 3603 | |
| 67306194 NC |
3604 | /* The old implementation would copy source into TARG at this point. |
| 3605 | This had the side effect that if source was undef, TARG was now | |
| 3606 | an undefined SV with PADTMP set, and they don't warn inside | |
| 3607 | sv_2pv_flags(). However, we're now getting the PV direct from | |
| 3608 | source, which doesn't have PADTMP set, so it would warn. Hence the | |
| 3609 | little games. */ | |
| 3610 | ||
| 3611 | if (SvOK(source)) { | |
| 3612 | s = (const U8*)SvPV_nomg_const(source, len); | |
| 3613 | } else { | |
| 1eced8f8 | 3614 | s = (const U8*)""; |
| 67306194 | 3615 | len = 0; |
| a0ed51b3 | 3616 | } |
| 67306194 NC |
3617 | min = len + 1; |
| 3618 | ||
| 3619 | SvUPGRADE(dest, SVt_PV); | |
| 3b416f41 | 3620 | d = (U8*)SvGROW(dest, min); |
| 67306194 NC |
3621 | (void)SvPOK_only(dest); |
| 3622 | ||
| 3623 | SETs(dest); | |
| a0ed51b3 | 3624 | } |
| 31351b04 | 3625 | |
| 67306194 NC |
3626 | /* Overloaded values may have toggled the UTF-8 flag on source, so we need |
| 3627 | to check DO_UTF8 again here. */ | |
| 3628 | ||
| 3629 | if (DO_UTF8(source)) { | |
| 3630 | const U8 *const send = s + len; | |
| 3631 | U8 tmpbuf[UTF8_MAXBYTES+1]; | |
| 3632 | ||
| 3633 | while (s < send) { | |
| 3634 | const STRLEN u = UTF8SKIP(s); | |
| 3635 | STRLEN ulen; | |
| 3636 | ||
| 3637 | toUPPER_utf8(s, tmpbuf, &ulen); | |
| 3638 | if (ulen > u && (SvLEN(dest) < (min += ulen - u))) { | |
| 3639 | /* If the eventually required minimum size outgrows | |
| 3640 | * the available space, we need to grow. */ | |
| 3641 | const UV o = d - (U8*)SvPVX_const(dest); | |
| 3642 | ||
| 3643 | /* If someone uppercases one million U+03B0s we SvGROW() one | |
| 3644 | * million times. Or we could try guessing how much to | |
| 3645 | allocate without allocating too much. Such is life. */ | |
| 3646 | SvGROW(dest, min); | |
| 3647 | d = (U8*)SvPVX(dest) + o; | |
| 3648 | } | |
| 3649 | Copy(tmpbuf, d, ulen, U8); | |
| 3650 | d += ulen; | |
| 3651 | s += u; | |
| 3652 | } | |
| 3653 | SvUTF8_on(dest); | |
| 3654 | *d = '\0'; | |
| 3655 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); | |
| 3656 | } else { | |
| 3657 | if (len) { | |
| 3658 | const U8 *const send = s + len; | |
| 2de3dbcc | 3659 | if (IN_LOCALE_RUNTIME) { |
| 31351b04 | 3660 | TAINT; |
| 67306194 NC |
3661 | SvTAINTED_on(dest); |
| 3662 | for (; s < send; d++, s++) | |
| 3663 | *d = toUPPER_LC(*s); | |
| 31351b04 JS |
3664 | } |
| 3665 | else { | |
| 67306194 NC |
3666 | for (; s < send; d++, s++) |
| 3667 | *d = toUPPER(*s); | |
| 31351b04 | 3668 | } |
| bbce6d69 | 3669 | } |
| 67306194 NC |
3670 | if (source != dest) { |
| 3671 | *d = '\0'; | |
| 3672 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); | |
| 3673 | } | |
| 79072805 | 3674 | } |
| 67306194 | 3675 | SvSETMAGIC(dest); |
| 79072805 LW |
3676 | RETURN; |
| 3677 | } | |
| 3678 | ||
| 3679 | PP(pp_lc) | |
| 3680 | { | |
| 97aff369 | 3681 | dVAR; |
| 39644a26 | 3682 | dSP; |
| ec9af7d4 | 3683 | SV *source = TOPs; |
| 463ee0b2 | 3684 | STRLEN len; |
| ec9af7d4 NC |
3685 | STRLEN min; |
| 3686 | SV *dest; | |
| 3687 | const U8 *s; | |
| 3688 | U8 *d; | |
| 79072805 | 3689 | |
| ec9af7d4 NC |