https://perl5.git.perl.org / perl5.git / blame
| Commit | Line | Data |
|---|---|---|
| a0d0e21e | 1 | /* pp.c |
| 79072805 | 2 | * |
| 1129b882 NC |
3 | * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, |
| 4 | * 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 by Larry Wall and others | |
| 79072805 | 5 | * |
| a0d0e21e LW |
6 | * You may distribute under the terms of either the GNU General Public |
| 7 | * License or the Artistic License, as specified in the README file. | |
| 79072805 | 8 | * |
| a0d0e21e LW |
9 | */ |
| 10 | ||
| 11 | /* | |
| 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) { | |
| 502c6561 | 78 | const I32 maxarg = AvFILL(MUTABLE_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++) { |
| 502c6561 | 83 | SV * const * const svp = av_fetch(MUTABLE_AV(TARG), i, FALSE); |
| 3280af22 | 84 | SP[i+1] = (svp) ? *svp : &PL_sv_undef; |
| 93965878 NIS |
85 | } |
| 86 | } | |
| 87 | else { | |
| 502c6561 | 88 | Copy(AvARRAY((const AV *)TARG), SP+1, maxarg, SV*); |
| 93965878 | 89 | } |
| 85e6fe83 LW |
90 | SP += maxarg; |
| 91 | } | |
| 13017935 | 92 | else if (gimme == G_SCALAR) { |
| 1b6737cc | 93 | SV* const sv = sv_newmortal(); |
| 502c6561 | 94 | const I32 maxarg = AvFILL(MUTABLE_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 | 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 | 117 | gimme = GIMME_V; |
| 118 | if (gimme == G_ARRAY) { | |
| cea2e8a9 | 119 | RETURNOP(do_kv()); |
| 85e6fe83 | 120 | } |
| 54310121 | 121 | else if (gimme == G_SCALAR) { |
| 85fbaab2 | 122 | SV* const sv = Perl_hv_scalar(aTHX_ MUTABLE_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 | 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 | 145 | } |
| 6e592b3a | 146 | else if (!isGV_with_GP(sv)) |
| cea2e8a9 | 147 | DIE(aTHX_ "Not a GLOB reference"); |
| 79072805 LW |
148 | } |
| 149 | else { | |
| 6e592b3a | 150 | if (!isGV_with_GP(sv)) { |
| 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 | } |
| 43230e26 | 175 | prepare_SV_for_RV(sv); |
| b162af07 | 176 | SvRV_set(sv, (SV*)gv); |
| 853846ea | 177 | SvROK_on(sv); |
| 1d8d4d2a | 178 | SvSETMAGIC(sv); |
| 853846ea | 179 | goto wasref; |
| 2c8ac474 | 180 | } |
| 533c011a NIS |
181 | if (PL_op->op_flags & OPf_REF || |
| 182 | PL_op->op_private & HINT_STRICT_REFS) | |
| cea2e8a9 | 183 | DIE(aTHX_ PL_no_usym, "a symbol"); |
| 599cee73 | 184 | if (ckWARN(WARN_UNINITIALIZED)) |
| 29489e7c | 185 | report_uninit(sv); |
| a0d0e21e LW |
186 | RETSETUNDEF; |
| 187 | } | |
| 35cd451c GS |
188 | if ((PL_op->op_flags & OPf_SPECIAL) && |
| 189 | !(PL_op->op_flags & OPf_MOD)) | |
| 190 | { | |
| f776e3cd | 191 | SV * const temp = (SV*)gv_fetchsv(sv, 0, SVt_PVGV); |
| 7a5fd60d NC |
192 | if (!temp |
| 193 | && (!is_gv_magical_sv(sv,0) | |
| f776e3cd | 194 | || !(sv = (SV*)gv_fetchsv(sv, GV_ADD, SVt_PVGV)))) { |
| 35cd451c | 195 | RETSETUNDEF; |
| c9d5ac95 | 196 | } |
| 7a5fd60d | 197 | sv = temp; |
| 35cd451c GS |
198 | } |
| 199 | else { | |
| 200 | if (PL_op->op_private & HINT_STRICT_REFS) | |
| 7a5fd60d | 201 | DIE(aTHX_ PL_no_symref_sv, sv, "a symbol"); |
| e26df76a NC |
202 | if ((PL_op->op_private & (OPpLVAL_INTRO|OPpDONT_INIT_GV)) |
| 203 | == OPpDONT_INIT_GV) { | |
| 204 | /* We are the target of a coderef assignment. Return | |
| 205 | the scalar unchanged, and let pp_sasssign deal with | |
| 206 | things. */ | |
| 207 | RETURN; | |
| 208 | } | |
| f776e3cd | 209 | sv = (SV*)gv_fetchsv(sv, GV_ADD, SVt_PVGV); |
| 35cd451c | 210 | } |
| 93a17b20 | 211 | } |
| 79072805 | 212 | } |
| 533c011a NIS |
213 | if (PL_op->op_private & OPpLVAL_INTRO) |
| 214 | save_gp((GV*)sv, !(PL_op->op_flags & OPf_SPECIAL)); | |
| 79072805 LW |
215 | SETs(sv); |
| 216 | RETURN; | |
| 217 | } | |
| 218 | ||
| dc3c76f8 NC |
219 | /* Helper function for pp_rv2sv and pp_rv2av */ |
| 220 | GV * | |
| fe9845cc RB |
221 | Perl_softref2xv(pTHX_ SV *const sv, const char *const what, |
| 222 | const svtype type, SV ***spp) | |
| dc3c76f8 NC |
223 | { |
| 224 | dVAR; | |
| 225 | GV *gv; | |
| 226 | ||
| 7918f24d NC |
227 | PERL_ARGS_ASSERT_SOFTREF2XV; |
| 228 | ||
| dc3c76f8 NC |
229 | if (PL_op->op_private & HINT_STRICT_REFS) { |
| 230 | if (SvOK(sv)) | |
| 231 | Perl_die(aTHX_ PL_no_symref_sv, sv, what); | |
| 232 | else | |
| 233 | Perl_die(aTHX_ PL_no_usym, what); | |
| 234 | } | |
| 235 | if (!SvOK(sv)) { | |
| 236 | if (PL_op->op_flags & OPf_REF) | |
| 237 | Perl_die(aTHX_ PL_no_usym, what); | |
| 238 | if (ckWARN(WARN_UNINITIALIZED)) | |
| 239 | report_uninit(sv); | |
| 240 | if (type != SVt_PV && GIMME_V == G_ARRAY) { | |
| 241 | (*spp)--; | |
| 242 | return NULL; | |
| 243 | } | |
| 244 | **spp = &PL_sv_undef; | |
| 245 | return NULL; | |
| 246 | } | |
| 247 | if ((PL_op->op_flags & OPf_SPECIAL) && | |
| 248 | !(PL_op->op_flags & OPf_MOD)) | |
| 249 | { | |
| 81e3fc25 | 250 | gv = gv_fetchsv(sv, 0, type); |
| dc3c76f8 NC |
251 | if (!gv |
| 252 | && (!is_gv_magical_sv(sv,0) | |
| 81e3fc25 | 253 | || !(gv = gv_fetchsv(sv, GV_ADD, type)))) |
| dc3c76f8 NC |
254 | { |
| 255 | **spp = &PL_sv_undef; | |
| 256 | return NULL; | |
| 257 | } | |
| 258 | } | |
| 259 | else { | |
| 81e3fc25 | 260 | gv = gv_fetchsv(sv, GV_ADD, type); |
| dc3c76f8 NC |
261 | } |
| 262 | return gv; | |
| 263 | } | |
| 264 | ||
| 79072805 LW |
265 | PP(pp_rv2sv) |
| 266 | { | |
| 97aff369 | 267 | dVAR; dSP; dTOPss; |
| c445ea15 | 268 | GV *gv = NULL; |
| 79072805 | 269 | |
| ed6116ce | 270 | if (SvROK(sv)) { |
| a0d0e21e | 271 | wasref: |
| f5284f61 IZ |
272 | tryAMAGICunDEREF(to_sv); |
| 273 | ||
| ed6116ce | 274 | sv = SvRV(sv); |
| 79072805 LW |
275 | switch (SvTYPE(sv)) { |
| 276 | case SVt_PVAV: | |
| 277 | case SVt_PVHV: | |
| 278 | case SVt_PVCV: | |
| cbae9b9f YST |
279 | case SVt_PVFM: |
| 280 | case SVt_PVIO: | |
| cea2e8a9 | 281 | DIE(aTHX_ "Not a SCALAR reference"); |
| 42d0e0b7 | 282 | default: NOOP; |
| 79072805 LW |
283 | } |
| 284 | } | |
| 285 | else { | |
| 82d03984 | 286 | gv = (GV*)sv; |
| 748a9306 | 287 | |
| 6e592b3a | 288 | if (!isGV_with_GP(gv)) { |
| a0d0e21e LW |
289 | if (SvGMAGICAL(sv)) { |
| 290 | mg_get(sv); | |
| 291 | if (SvROK(sv)) | |
| 292 | goto wasref; | |
| 293 | } | |
| dc3c76f8 NC |
294 | gv = Perl_softref2xv(aTHX_ sv, "a SCALAR", SVt_PV, &sp); |
| 295 | if (!gv) | |
| 296 | RETURN; | |
| 463ee0b2 | 297 | } |
| 29c711a3 | 298 | sv = GvSVn(gv); |
| a0d0e21e | 299 | } |
| 533c011a | 300 | if (PL_op->op_flags & OPf_MOD) { |
| 82d03984 RGS |
301 | if (PL_op->op_private & OPpLVAL_INTRO) { |
| 302 | if (cUNOP->op_first->op_type == OP_NULL) | |
| 303 | sv = save_scalar((GV*)TOPs); | |
| 304 | else if (gv) | |
| 305 | sv = save_scalar(gv); | |
| 306 | else | |
| 307 | Perl_croak(aTHX_ PL_no_localize_ref); | |
| 308 | } | |
| 533c011a NIS |
309 | else if (PL_op->op_private & OPpDEREF) |
| 310 | vivify_ref(sv, PL_op->op_private & OPpDEREF); | |
| 79072805 | 311 | } |
| a0d0e21e | 312 | SETs(sv); |
| 79072805 LW |
313 | RETURN; |
| 314 | } | |
| 315 | ||
| 316 | PP(pp_av2arylen) | |
| 317 | { | |
| 97aff369 | 318 | dVAR; dSP; |
| 502c6561 NC |
319 | AV * const av = MUTABLE_AV(TOPs); |
| 320 | SV ** const sv = Perl_av_arylen_p(aTHX_ MUTABLE_AV(av)); | |
| a3874608 | 321 | if (!*sv) { |
| b9f83d2f | 322 | *sv = newSV_type(SVt_PVMG); |
| c445ea15 | 323 | sv_magic(*sv, (SV*)av, PERL_MAGIC_arylen, NULL, 0); |
| 79072805 | 324 | } |
| a3874608 | 325 | SETs(*sv); |
| 79072805 LW |
326 | RETURN; |
| 327 | } | |
| 328 | ||
| a0d0e21e LW |
329 | PP(pp_pos) |
| 330 | { | |
| 97aff369 | 331 | dVAR; dSP; dTARGET; dPOPss; |
| 8ec5e241 | 332 | |
| 78f9721b | 333 | if (PL_op->op_flags & OPf_MOD || LVRET) { |
| 5f05dabc | 334 | if (SvTYPE(TARG) < SVt_PVLV) { |
| 335 | sv_upgrade(TARG, SVt_PVLV); | |
| c445ea15 | 336 | sv_magic(TARG, NULL, PERL_MAGIC_pos, NULL, 0); |
| 5f05dabc | 337 | } |
| 338 | ||
| 339 | LvTYPE(TARG) = '.'; | |
| 6ff81951 GS |
340 | if (LvTARG(TARG) != sv) { |
| 341 | if (LvTARG(TARG)) | |
| 342 | SvREFCNT_dec(LvTARG(TARG)); | |
| b37c2d43 | 343 | LvTARG(TARG) = SvREFCNT_inc_simple(sv); |
| 6ff81951 | 344 | } |
| a0d0e21e LW |
345 | PUSHs(TARG); /* no SvSETMAGIC */ |
| 346 | RETURN; | |
| 347 | } | |
| 348 | else { | |
| a0d0e21e | 349 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) { |
| 1b6737cc | 350 | const MAGIC * const mg = mg_find(sv, PERL_MAGIC_regex_global); |
| 565764a8 | 351 | if (mg && mg->mg_len >= 0) { |
| a0ed51b3 | 352 | I32 i = mg->mg_len; |
| 7e2040f0 | 353 | if (DO_UTF8(sv)) |
| a0ed51b3 | 354 | sv_pos_b2u(sv, &i); |
| fc15ae8f | 355 | PUSHi(i + CopARYBASE_get(PL_curcop)); |
| a0d0e21e LW |
356 | RETURN; |
| 357 | } | |
| 358 | } | |
| 359 | RETPUSHUNDEF; | |
| 360 | } | |
| 361 | } | |
| 362 | ||
| 79072805 LW |
363 | PP(pp_rv2cv) |
| 364 | { | |
| 97aff369 | 365 | dVAR; dSP; |
| 79072805 | 366 | GV *gv; |
| 1eced8f8 | 367 | HV *stash_unused; |
| c445ea15 AL |
368 | const I32 flags = (PL_op->op_flags & OPf_SPECIAL) |
| 369 | ? 0 | |
| 370 | : ((PL_op->op_private & (OPpLVAL_INTRO|OPpMAY_RETURN_CONSTANT)) == OPpMAY_RETURN_CONSTANT) | |
| 371 | ? GV_ADD|GV_NOEXPAND | |
| 372 | : GV_ADD; | |
| 4633a7c4 LW |
373 | /* We usually try to add a non-existent subroutine in case of AUTOLOAD. */ |
| 374 | /* (But not in defined().) */ | |
| e26df76a | 375 | |
| 1eced8f8 | 376 | CV *cv = sv_2cv(TOPs, &stash_unused, &gv, flags); |
| 07055b4c CS |
377 | if (cv) { |
| 378 | if (CvCLONE(cv)) | |
| ea726b52 | 379 | cv = MUTABLE_CV(sv_2mortal((SV*)cv_clone(cv))); |
| d32f2495 SC |
380 | if ((PL_op->op_private & OPpLVAL_INTRO)) { |
| 381 | if (gv && GvCV(gv) == cv && (gv = gv_autoload4(GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv), FALSE))) | |
| 382 | cv = GvCV(gv); | |
| 383 | if (!CvLVALUE(cv)) | |
| 384 | DIE(aTHX_ "Can't modify non-lvalue subroutine call"); | |
| 385 | } | |
| 07055b4c | 386 | } |
| e26df76a | 387 | else if ((flags == (GV_ADD|GV_NOEXPAND)) && gv && SvROK(gv)) { |
| ea726b52 | 388 | cv = MUTABLE_CV(gv); |
| e26df76a | 389 | } |
| 07055b4c | 390 | else |
| ea726b52 | 391 | cv = MUTABLE_CV(&PL_sv_undef); |
| 79072805 LW |
392 | SETs((SV*)cv); |
| 393 | RETURN; | |
| 394 | } | |
| 395 | ||
| c07a80fd | 396 | PP(pp_prototype) |
| 397 | { | |
| 97aff369 | 398 | dVAR; dSP; |
| c07a80fd | 399 | CV *cv; |
| 400 | HV *stash; | |
| 401 | GV *gv; | |
| fabdb6c0 | 402 | SV *ret = &PL_sv_undef; |
| c07a80fd | 403 | |
| b6c543e3 | 404 | if (SvPOK(TOPs) && SvCUR(TOPs) >= 7) { |
| e3f73d4e | 405 | const char * s = SvPVX_const(TOPs); |
| b6c543e3 | 406 | if (strnEQ(s, "CORE::", 6)) { |
| 5458a98a | 407 | const int code = keyword(s + 6, SvCUR(TOPs) - 6, 1); |
| b6c543e3 IZ |
408 | if (code < 0) { /* Overridable. */ |
| 409 | #define MAX_ARGS_OP ((sizeof(I32) - 1) * 2) | |
| 59b085e1 | 410 | int i = 0, n = 0, seen_question = 0, defgv = 0; |
| b6c543e3 IZ |
411 | I32 oa; |
| 412 | char str[ MAX_ARGS_OP * 2 + 2 ]; /* One ';', one '\0' */ | |
| 413 | ||
| bdf1bb36 | 414 | if (code == -KEY_chop || code == -KEY_chomp |
| f23102e2 | 415 | || code == -KEY_exec || code == -KEY_system) |
| 77bc9082 | 416 | goto set; |
| d116c547 | 417 | if (code == -KEY_mkdir) { |
| 84bafc02 | 418 | ret = newSVpvs_flags("_;$", SVs_TEMP); |
| d116c547 RGS |
419 | goto set; |
| 420 | } | |
| e3f73d4e RGS |
421 | if (code == -KEY_readpipe) { |
| 422 | s = "CORE::backtick"; | |
| 423 | } | |
| b6c543e3 | 424 | while (i < MAXO) { /* The slow way. */ |
| 22c35a8c GS |
425 | if (strEQ(s + 6, PL_op_name[i]) |
| 426 | || strEQ(s + 6, PL_op_desc[i])) | |
| 427 | { | |
| b6c543e3 | 428 | goto found; |
| 22c35a8c | 429 | } |
| b6c543e3 IZ |
430 | i++; |
| 431 | } | |
| 432 | goto nonesuch; /* Should not happen... */ | |
| 433 | found: | |
| 59b085e1 | 434 | defgv = PL_opargs[i] & OA_DEFGV; |
| 22c35a8c | 435 | oa = PL_opargs[i] >> OASHIFT; |
| b6c543e3 | 436 | while (oa) { |
| 59b085e1 | 437 | if (oa & OA_OPTIONAL && !seen_question && !defgv) { |
| b6c543e3 IZ |
438 | seen_question = 1; |
| 439 | str[n++] = ';'; | |
| ef54e1a4 | 440 | } |
| b13b2135 | 441 | if ((oa & (OA_OPTIONAL - 1)) >= OA_AVREF |
| 6e97e420 SC |
442 | && (oa & (OA_OPTIONAL - 1)) <= OA_SCALARREF |
| 443 | /* But globs are already references (kinda) */ | |
| 444 | && (oa & (OA_OPTIONAL - 1)) != OA_FILEREF | |
| 445 | ) { | |
| b6c543e3 IZ |
446 | str[n++] = '\\'; |
| 447 | } | |
| b6c543e3 IZ |
448 | str[n++] = ("?$@@%&*$")[oa & (OA_OPTIONAL - 1)]; |
| 449 | oa = oa >> 4; | |
| 450 | } | |
| 59b085e1 RGS |
451 | if (defgv && str[n - 1] == '$') |
| 452 | str[n - 1] = '_'; | |
| b6c543e3 | 453 | str[n++] = '\0'; |
| 59cd0e26 | 454 | ret = newSVpvn_flags(str, n - 1, SVs_TEMP); |
| ef54e1a4 JH |
455 | } |
| 456 | else if (code) /* Non-Overridable */ | |
| b6c543e3 IZ |
457 | goto set; |
| 458 | else { /* None such */ | |
| 459 | nonesuch: | |
| d470f89e | 460 | DIE(aTHX_ "Can't find an opnumber for \"%s\"", s+6); |
| b6c543e3 IZ |
461 | } |
| 462 | } | |
| 463 | } | |
| f2c0649b | 464 | cv = sv_2cv(TOPs, &stash, &gv, 0); |
| 5f05dabc | 465 | if (cv && SvPOK(cv)) |
| 59cd0e26 | 466 | ret = newSVpvn_flags(SvPVX_const(cv), SvCUR(cv), SVs_TEMP); |
| b6c543e3 | 467 | set: |
| c07a80fd | 468 | SETs(ret); |
| 469 | RETURN; | |
| 470 | } | |
| 471 | ||
| a0d0e21e LW |
472 | PP(pp_anoncode) |
| 473 | { | |
| 97aff369 | 474 | dVAR; dSP; |
| ea726b52 | 475 | CV *cv = MUTABLE_CV(PAD_SV(PL_op->op_targ)); |
| a5f75d66 | 476 | if (CvCLONE(cv)) |
| ea726b52 | 477 | cv = MUTABLE_CV(sv_2mortal((SV*)cv_clone(cv))); |
| 5f05dabc | 478 | EXTEND(SP,1); |
| 748a9306 | 479 | PUSHs((SV*)cv); |
| a0d0e21e LW |
480 | RETURN; |
| 481 | } | |
| 482 | ||
| 483 | PP(pp_srefgen) | |
| 79072805 | 484 | { |
| 97aff369 | 485 | dVAR; dSP; |
| 71be2cbc | 486 | *SP = refto(*SP); |
| 79072805 | 487 | RETURN; |
| 8ec5e241 | 488 | } |
| a0d0e21e LW |
489 | |
| 490 | PP(pp_refgen) | |
| 491 | { | |
| 97aff369 | 492 | dVAR; dSP; dMARK; |
| a0d0e21e | 493 | if (GIMME != G_ARRAY) { |
| 5f0b1d4e GS |
494 | if (++MARK <= SP) |
| 495 | *MARK = *SP; | |
| 496 | else | |
| 3280af22 | 497 | *MARK = &PL_sv_undef; |
| 5f0b1d4e GS |
498 | *MARK = refto(*MARK); |
| 499 | SP = MARK; | |
| 500 | RETURN; | |
| a0d0e21e | 501 | } |
| bbce6d69 | 502 | EXTEND_MORTAL(SP - MARK); |
| 71be2cbc | 503 | while (++MARK <= SP) |
| 504 | *MARK = refto(*MARK); | |
| a0d0e21e | 505 | RETURN; |
| 79072805 LW |
506 | } |
| 507 | ||
| 76e3520e | 508 | STATIC SV* |
| cea2e8a9 | 509 | S_refto(pTHX_ SV *sv) |
| 71be2cbc | 510 | { |
| 97aff369 | 511 | dVAR; |
| 71be2cbc | 512 | SV* rv; |
| 513 | ||
| 7918f24d NC |
514 | PERL_ARGS_ASSERT_REFTO; |
| 515 | ||
| 71be2cbc | 516 | if (SvTYPE(sv) == SVt_PVLV && LvTYPE(sv) == 'y') { |
| 517 | if (LvTARGLEN(sv)) | |
| 68dc0745 | 518 | vivify_defelem(sv); |
| 519 | if (!(sv = LvTARG(sv))) | |
| 3280af22 | 520 | sv = &PL_sv_undef; |
| 0dd88869 | 521 | else |
| b37c2d43 | 522 | SvREFCNT_inc_void_NN(sv); |
| 71be2cbc | 523 | } |
| d8b46c1b | 524 | else if (SvTYPE(sv) == SVt_PVAV) { |
| 502c6561 NC |
525 | if (!AvREAL((const AV *)sv) && AvREIFY((const AV *)sv)) |
| 526 | av_reify(MUTABLE_AV(sv)); | |
| d8b46c1b | 527 | SvTEMP_off(sv); |
| b37c2d43 | 528 | SvREFCNT_inc_void_NN(sv); |
| d8b46c1b | 529 | } |
| f2933f5f DM |
530 | else if (SvPADTMP(sv) && !IS_PADGV(sv)) |
| 531 | sv = newSVsv(sv); | |
| 71be2cbc | 532 | else { |
| 533 | SvTEMP_off(sv); | |
| b37c2d43 | 534 | SvREFCNT_inc_void_NN(sv); |
| 71be2cbc | 535 | } |
| 536 | rv = sv_newmortal(); | |
| 4df7f6af | 537 | sv_upgrade(rv, SVt_IV); |
| b162af07 | 538 | SvRV_set(rv, sv); |
| 71be2cbc | 539 | SvROK_on(rv); |
| 540 | return rv; | |
| 541 | } | |
| 542 | ||
| 79072805 LW |
543 | PP(pp_ref) |
| 544 | { | |
| 97aff369 | 545 | dVAR; dSP; dTARGET; |
| e1ec3a88 | 546 | const char *pv; |
| 1b6737cc | 547 | SV * const sv = POPs; |
| f12c7020 | 548 | |
| 5b295bef RD |
549 | if (sv) |
| 550 | SvGETMAGIC(sv); | |
| f12c7020 | 551 | |
| a0d0e21e | 552 | if (!sv || !SvROK(sv)) |
| 4633a7c4 | 553 | RETPUSHNO; |
| 79072805 | 554 | |
| 1b6737cc | 555 | pv = sv_reftype(SvRV(sv),TRUE); |
| 463ee0b2 | 556 | PUSHp(pv, strlen(pv)); |
| 79072805 LW |
557 | RETURN; |
| 558 | } | |
| 559 | ||
| 560 | PP(pp_bless) | |
| 561 | { | |
| 97aff369 | 562 | dVAR; dSP; |
| 463ee0b2 | 563 | HV *stash; |
| 79072805 | 564 | |
| 463ee0b2 | 565 | if (MAXARG == 1) |
| 11faa288 | 566 | stash = CopSTASH(PL_curcop); |
| 7b8d334a | 567 | else { |
| 1b6737cc | 568 | SV * const ssv = POPs; |
| 7b8d334a | 569 | STRLEN len; |
| e1ec3a88 | 570 | const char *ptr; |
| 81689caa | 571 | |
| 016a42f3 | 572 | if (ssv && !SvGMAGICAL(ssv) && !SvAMAGIC(ssv) && SvROK(ssv)) |
| 81689caa | 573 | Perl_croak(aTHX_ "Attempt to bless into a reference"); |
| 5c144d81 | 574 | ptr = SvPV_const(ssv,len); |
| 041457d9 | 575 | if (len == 0 && ckWARN(WARN_MISC)) |
| 9014280d | 576 | Perl_warner(aTHX_ packWARN(WARN_MISC), |
| 599cee73 | 577 | "Explicit blessing to '' (assuming package main)"); |
| da51bb9b | 578 | stash = gv_stashpvn(ptr, len, GV_ADD); |
| 7b8d334a | 579 | } |
| a0d0e21e | 580 | |
| 5d3fdfeb | 581 | (void)sv_bless(TOPs, stash); |
| 79072805 LW |
582 | RETURN; |
| 583 | } | |
| 584 | ||
| fb73857a | 585 | PP(pp_gelem) |
| 586 | { | |
| 97aff369 | 587 | dVAR; dSP; |
| b13b2135 | 588 | |
| 1b6737cc AL |
589 | SV *sv = POPs; |
| 590 | const char * const elem = SvPV_nolen_const(sv); | |
| 591 | GV * const gv = (GV*)POPs; | |
| c445ea15 | 592 | SV * tmpRef = NULL; |
| 1b6737cc | 593 | |
| c445ea15 | 594 | sv = NULL; |
| c4ba80c3 NC |
595 | if (elem) { |
| 596 | /* elem will always be NUL terminated. */ | |
| 1b6737cc | 597 | const char * const second_letter = elem + 1; |
| c4ba80c3 NC |
598 | switch (*elem) { |
| 599 | case 'A': | |
| 1b6737cc | 600 | if (strEQ(second_letter, "RRAY")) |
| c4ba80c3 NC |
601 | tmpRef = (SV*)GvAV(gv); |
| 602 | break; | |
| 603 | case 'C': | |
| 1b6737cc | 604 | if (strEQ(second_letter, "ODE")) |
| c4ba80c3 NC |
605 | tmpRef = (SV*)GvCVu(gv); |
| 606 | break; | |
| 607 | case 'F': | |
| 1b6737cc | 608 | if (strEQ(second_letter, "ILEHANDLE")) { |
| c4ba80c3 NC |
609 | /* finally deprecated in 5.8.0 */ |
| 610 | deprecate("*glob{FILEHANDLE}"); | |
| 611 | tmpRef = (SV*)GvIOp(gv); | |
| 612 | } | |
| 613 | else | |
| 1b6737cc | 614 | if (strEQ(second_letter, "ORMAT")) |
| c4ba80c3 NC |
615 | tmpRef = (SV*)GvFORM(gv); |
| 616 | break; | |
| 617 | case 'G': | |
| 1b6737cc | 618 | if (strEQ(second_letter, "LOB")) |
| c4ba80c3 NC |
619 | tmpRef = (SV*)gv; |
| 620 | break; | |
| 621 | case 'H': | |
| 1b6737cc | 622 | if (strEQ(second_letter, "ASH")) |
| c4ba80c3 NC |
623 | tmpRef = (SV*)GvHV(gv); |
| 624 | break; | |
| 625 | case 'I': | |
| 1b6737cc | 626 | if (*second_letter == 'O' && !elem[2]) |
| c4ba80c3 NC |
627 | tmpRef = (SV*)GvIOp(gv); |
| 628 | break; | |
| 629 | case 'N': | |
| 1b6737cc | 630 | if (strEQ(second_letter, "AME")) |
| a663657d | 631 | sv = newSVhek(GvNAME_HEK(gv)); |
| c4ba80c3 NC |
632 | break; |
| 633 | case 'P': | |
| 1b6737cc | 634 | if (strEQ(second_letter, "ACKAGE")) { |
| 7fa3a4ab NC |
635 | const HV * const stash = GvSTASH(gv); |
| 636 | const HEK * const hek = stash ? HvNAME_HEK(stash) : NULL; | |
| 396482e1 | 637 | sv = hek ? newSVhek(hek) : newSVpvs("__ANON__"); |
| c4ba80c3 NC |
638 | } |
| 639 | break; | |
| 640 | case 'S': | |
| 1b6737cc | 641 | if (strEQ(second_letter, "CALAR")) |
| f9d52e31 | 642 | tmpRef = GvSVn(gv); |
| c4ba80c3 | 643 | break; |
| 39b99f21 | 644 | } |
| fb73857a | 645 | } |
| 76e3520e GS |
646 | if (tmpRef) |
| 647 | sv = newRV(tmpRef); | |
| fb73857a | 648 | if (sv) |
| 649 | sv_2mortal(sv); | |
| 650 | else | |
| 3280af22 | 651 | sv = &PL_sv_undef; |
| fb73857a | 652 | XPUSHs(sv); |
| 653 | RETURN; | |
| 654 | } | |
| 655 | ||
| a0d0e21e | 656 | /* Pattern matching */ |
| 79072805 | 657 | |
| a0d0e21e | 658 | PP(pp_study) |
| 79072805 | 659 | { |
| 97aff369 | 660 | dVAR; dSP; dPOPss; |
| a0d0e21e LW |
661 | register unsigned char *s; |
| 662 | register I32 pos; | |
| 663 | register I32 ch; | |
| 664 | register I32 *sfirst; | |
| 665 | register I32 *snext; | |
| a0d0e21e LW |
666 | STRLEN len; |
| 667 | ||
| 3280af22 | 668 | if (sv == PL_lastscream) { |
| 1e422769 | 669 | if (SvSCREAM(sv)) |
| 670 | RETPUSHYES; | |
| 671 | } | |
| a4f4e906 NC |
672 | s = (unsigned char*)(SvPV(sv, len)); |
| 673 | pos = len; | |
| c9b9f909 | 674 | if (pos <= 0 || !SvPOK(sv) || SvUTF8(sv)) { |
| a4f4e906 NC |
675 | /* No point in studying a zero length string, and not safe to study |
| 676 | anything that doesn't appear to be a simple scalar (and hence might | |
| 677 | change between now and when the regexp engine runs without our set | |
| bd473224 | 678 | magic ever running) such as a reference to an object with overloaded |
| a4f4e906 NC |
679 | stringification. */ |
| 680 | RETPUSHNO; | |
| 681 | } | |
| 682 | ||
| 683 | if (PL_lastscream) { | |
| 684 | SvSCREAM_off(PL_lastscream); | |
| 685 | SvREFCNT_dec(PL_lastscream); | |
| c07a80fd | 686 | } |
| b37c2d43 | 687 | PL_lastscream = SvREFCNT_inc_simple(sv); |
| 1e422769 | 688 | |
| 689 | s = (unsigned char*)(SvPV(sv, len)); | |
| 690 | pos = len; | |
| 691 | if (pos <= 0) | |
| 692 | RETPUSHNO; | |
| 3280af22 NIS |
693 | if (pos > PL_maxscream) { |
| 694 | if (PL_maxscream < 0) { | |
| 695 | PL_maxscream = pos + 80; | |
| a02a5408 JC |
696 | Newx(PL_screamfirst, 256, I32); |
| 697 | Newx(PL_screamnext, PL_maxscream, I32); | |
| 79072805 LW |
698 | } |
| 699 | else { | |
| 3280af22 NIS |
700 | PL_maxscream = pos + pos / 4; |
| 701 | Renew(PL_screamnext, PL_maxscream, I32); | |
| 79072805 | 702 | } |
| 79072805 | 703 | } |
| a0d0e21e | 704 | |
| 3280af22 NIS |
705 | sfirst = PL_screamfirst; |
| 706 | snext = PL_screamnext; | |
| a0d0e21e LW |
707 | |
| 708 | if (!sfirst || !snext) | |
| cea2e8a9 | 709 | DIE(aTHX_ "do_study: out of memory"); |
| a0d0e21e LW |
710 | |
| 711 | for (ch = 256; ch; --ch) | |
| 712 | *sfirst++ = -1; | |
| 713 | sfirst -= 256; | |
| 714 | ||
| 715 | while (--pos >= 0) { | |
| 1b6737cc | 716 | register const I32 ch = s[pos]; |
| a0d0e21e LW |
717 | if (sfirst[ch] >= 0) |
| 718 | snext[pos] = sfirst[ch] - pos; | |
| 719 | else | |
| 720 | snext[pos] = -pos; | |
| 721 | sfirst[ch] = pos; | |
| 79072805 LW |
722 | } |
| 723 | ||
| c07a80fd | 724 | SvSCREAM_on(sv); |
| 14befaf4 | 725 | /* piggyback on m//g magic */ |
| c445ea15 | 726 | sv_magic(sv, NULL, PERL_MAGIC_regex_global, NULL, 0); |
| 1e422769 | 727 | RETPUSHYES; |
| 79072805 LW |
728 | } |
| 729 | ||
| a0d0e21e | 730 | PP(pp_trans) |
| 79072805 | 731 | { |
| 97aff369 | 732 | dVAR; dSP; dTARG; |
| a0d0e21e LW |
733 | SV *sv; |
| 734 | ||
| 533c011a | 735 | if (PL_op->op_flags & OPf_STACKED) |
| a0d0e21e | 736 | sv = POPs; |
| 59f00321 RGS |
737 | else if (PL_op->op_private & OPpTARGET_MY) |
| 738 | sv = GETTARGET; | |
| 79072805 | 739 | else { |
| 54b9620d | 740 | sv = DEFSV; |
| a0d0e21e | 741 | EXTEND(SP,1); |
| 79072805 | 742 | } |
| adbc6bb1 | 743 | TARG = sv_newmortal(); |
| 4757a243 | 744 | PUSHi(do_trans(sv)); |
| a0d0e21e | 745 | RETURN; |
| 79072805 LW |
746 | } |
| 747 | ||
| a0d0e21e | 748 | /* Lvalue operators. */ |
| 79072805 | 749 | |
| a0d0e21e LW |
750 | PP(pp_schop) |
| 751 | { | |
| 97aff369 | 752 | dVAR; dSP; dTARGET; |
| a0d0e21e LW |
753 | do_chop(TARG, TOPs); |
| 754 | SETTARG; | |
| 755 | RETURN; | |
| 79072805 LW |
756 | } |
| 757 | ||
| a0d0e21e | 758 | PP(pp_chop) |
| 79072805 | 759 | { |
| 97aff369 | 760 | dVAR; dSP; dMARK; dTARGET; dORIGMARK; |
| 2ec6af5f RG |
761 | while (MARK < SP) |
| 762 | do_chop(TARG, *++MARK); | |
| 763 | SP = ORIGMARK; | |
| b59aed67 | 764 | XPUSHTARG; |
| a0d0e21e | 765 | RETURN; |
| 79072805 LW |
766 | } |
| 767 | ||
| a0d0e21e | 768 | PP(pp_schomp) |
| 79072805 | 769 | { |
| 97aff369 | 770 | dVAR; dSP; dTARGET; |
| a0d0e21e LW |
771 | SETi(do_chomp(TOPs)); |
| 772 | RETURN; | |
| 79072805 LW |
773 | } |
| 774 | ||
| a0d0e21e | 775 | PP(pp_chomp) |
| 79072805 | 776 | { |
| 97aff369 | 777 | dVAR; dSP; dMARK; dTARGET; |
| a0d0e21e | 778 | register I32 count = 0; |
| 8ec5e241 | 779 | |
| a0d0e21e LW |
780 | while (SP > MARK) |
| 781 | count += do_chomp(POPs); | |
| b59aed67 | 782 | XPUSHi(count); |
| a0d0e21e | 783 | RETURN; |
| 79072805 LW |
784 | } |
| 785 | ||
| a0d0e21e LW |
786 | PP(pp_undef) |
| 787 | { | |
| 97aff369 | 788 | dVAR; dSP; |
| a0d0e21e LW |
789 | SV *sv; |
| 790 | ||
| 533c011a | 791 | if (!PL_op->op_private) { |
| 774d564b | 792 | EXTEND(SP, 1); |
| a0d0e21e | 793 | RETPUSHUNDEF; |
| 774d564b | 794 | } |
| 79072805 | 795 | |
| a0d0e21e LW |
796 | sv = POPs; |
| 797 | if (!sv) | |
| 798 | RETPUSHUNDEF; | |
| 85e6fe83 | 799 | |
| 765f542d | 800 | SV_CHECK_THINKFIRST_COW_DROP(sv); |
| 85e6fe83 | 801 | |
| a0d0e21e LW |
802 | switch (SvTYPE(sv)) { |
| 803 | case SVt_NULL: | |
| 804 | break; | |
| 805 | case SVt_PVAV: | |
| 502c6561 | 806 | av_undef(MUTABLE_AV(sv)); |
| a0d0e21e LW |
807 | break; |
| 808 | case SVt_PVHV: | |
| 85fbaab2 | 809 | hv_undef(MUTABLE_HV(sv)); |
| a0d0e21e LW |
810 | break; |
| 811 | case SVt_PVCV: | |
| 126f53f3 | 812 | if (cv_const_sv((const CV *)sv) && ckWARN(WARN_MISC)) |
| 9014280d | 813 | Perl_warner(aTHX_ packWARN(WARN_MISC), "Constant subroutine %s undefined", |
| ea726b52 NC |
814 | CvANON((const CV *)sv) ? "(anonymous)" |
| 815 | : GvENAME(CvGV((const CV *)sv))); | |
| 5f66b61c | 816 | /* FALLTHROUGH */ |
| 9607fc9c | 817 | case SVt_PVFM: |
| 6fc92669 GS |
818 | { |
| 819 | /* let user-undef'd sub keep its identity */ | |
| ea726b52 NC |
820 | GV* const gv = CvGV((const CV *)sv); |
| 821 | cv_undef(MUTABLE_CV(sv)); | |
| 822 | CvGV((const CV *)sv) = gv; | |
| 6fc92669 | 823 | } |
| a0d0e21e | 824 | break; |
| 8e07c86e | 825 | case SVt_PVGV: |
| 6e592b3a | 826 | if (SvFAKE(sv)) { |
| 3280af22 | 827 | SvSetMagicSV(sv, &PL_sv_undef); |
| 6e592b3a BM |
828 | break; |
| 829 | } | |
| 830 | else if (isGV_with_GP(sv)) { | |
| 20408e3c | 831 | GP *gp; |
| dd69841b BB |
832 | HV *stash; |
| 833 | ||
| 834 | /* undef *Foo:: */ | |
| 835 | if((stash = GvHV((GV*)sv)) && HvNAME_get(stash)) | |
| 836 | mro_isa_changed_in(stash); | |
| 837 | /* undef *Pkg::meth_name ... */ | |
| 838 | else if(GvCVu((GV*)sv) && (stash = GvSTASH((GV*)sv)) && HvNAME_get(stash)) | |
| 839 | mro_method_changed_in(stash); | |
| 840 | ||
| 20408e3c | 841 | gp_free((GV*)sv); |
| a02a5408 | 842 | Newxz(gp, 1, GP); |
| 20408e3c | 843 | GvGP(sv) = gp_ref(gp); |
| 561b68a9 | 844 | GvSV(sv) = newSV(0); |
| 57843af0 | 845 | GvLINE(sv) = CopLINE(PL_curcop); |
| 20408e3c GS |
846 | GvEGV(sv) = (GV*)sv; |
| 847 | GvMULTI_on(sv); | |
| 6e592b3a | 848 | break; |
| 20408e3c | 849 | } |
| 6e592b3a | 850 | /* FALL THROUGH */ |
| a0d0e21e | 851 | default: |
| b15aece3 | 852 | if (SvTYPE(sv) >= SVt_PV && SvPVX_const(sv) && SvLEN(sv)) { |
| 8bd4d4c5 | 853 | SvPV_free(sv); |
| c445ea15 | 854 | SvPV_set(sv, NULL); |
| 4633a7c4 | 855 | SvLEN_set(sv, 0); |
| a0d0e21e | 856 | } |
| 0c34ef67 | 857 | SvOK_off(sv); |
| 4633a7c4 | 858 | SvSETMAGIC(sv); |
| 79072805 | 859 | } |
| a0d0e21e LW |
860 | |
| 861 | RETPUSHUNDEF; | |
| 79072805 LW |
862 | } |
| 863 | ||
| a0d0e21e | 864 | PP(pp_predec) |
| 79072805 | 865 | { |
| 97aff369 | 866 | dVAR; dSP; |
| 6e592b3a | 867 | if (SvTYPE(TOPs) >= SVt_PVAV || isGV_with_GP(TOPs)) |
| d470f89e | 868 | DIE(aTHX_ PL_no_modify); |
| 3510b4a1 NC |
869 | if (!SvREADONLY(TOPs) && SvIOK_notUV(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) |
| 870 | && SvIVX(TOPs) != IV_MIN) | |
| 55497cff | 871 | { |
| 45977657 | 872 | SvIV_set(TOPs, SvIVX(TOPs) - 1); |
| 55497cff | 873 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
| 748a9306 LW |
874 | } |
| 875 | else | |
| 876 | sv_dec(TOPs); | |
| a0d0e21e LW |
877 | SvSETMAGIC(TOPs); |
| 878 | return NORMAL; | |
| 879 | } | |
| 79072805 | 880 | |
| a0d0e21e LW |
881 | PP(pp_postinc) |
| 882 | { | |
| 97aff369 | 883 | dVAR; dSP; dTARGET; |
| 6e592b3a | 884 | if (SvTYPE(TOPs) >= SVt_PVAV || isGV_with_GP(TOPs)) |
| d470f89e | 885 | DIE(aTHX_ PL_no_modify); |
| a0d0e21e | 886 | sv_setsv(TARG, TOPs); |
| 3510b4a1 NC |
887 | if (!SvREADONLY(TOPs) && SvIOK_notUV(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) |
| 888 | && SvIVX(TOPs) != IV_MAX) | |
| 55497cff | 889 | { |
| 45977657 | 890 | SvIV_set(TOPs, SvIVX(TOPs) + 1); |
| 55497cff | 891 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
| 748a9306 LW |
892 | } |
| 893 | else | |
| 894 | sv_inc(TOPs); | |
| a0d0e21e | 895 | SvSETMAGIC(TOPs); |
| 1e54a23f | 896 | /* special case for undef: see thread at 2003-03/msg00536.html in archive */ |
| a0d0e21e LW |
897 | if (!SvOK(TARG)) |
| 898 | sv_setiv(TARG, 0); | |
| 899 | SETs(TARG); | |
| 900 | return NORMAL; | |
| 901 | } | |
| 79072805 | 902 | |
| a0d0e21e LW |
903 | PP(pp_postdec) |
| 904 | { | |
| 97aff369 | 905 | dVAR; dSP; dTARGET; |
| 6e592b3a | 906 | if (SvTYPE(TOPs) >= SVt_PVAV || isGV_with_GP(TOPs)) |
| d470f89e | 907 | DIE(aTHX_ PL_no_modify); |
| a0d0e21e | 908 | sv_setsv(TARG, TOPs); |
| 3510b4a1 NC |
909 | if (!SvREADONLY(TOPs) && SvIOK_notUV(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) |
| 910 | && SvIVX(TOPs) != IV_MIN) | |
| 55497cff | 911 | { |
| 45977657 | 912 | SvIV_set(TOPs, SvIVX(TOPs) - 1); |
| 55497cff | 913 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
| 748a9306 LW |
914 | } |
| 915 | else | |
| 916 | sv_dec(TOPs); | |
| a0d0e21e LW |
917 | SvSETMAGIC(TOPs); |
| 918 | SETs(TARG); | |
| 919 | return NORMAL; | |
| 920 | } | |
| 79072805 | 921 | |
| a0d0e21e LW |
922 | /* Ordinary operators. */ |
| 923 | ||
| 924 | PP(pp_pow) | |
| 925 | { | |
| 800401ee | 926 | dVAR; dSP; dATARGET; SV *svl, *svr; |
| 58d76dfd | 927 | #ifdef PERL_PRESERVE_IVUV |
| 52a96ae6 HS |
928 | bool is_int = 0; |
| 929 | #endif | |
| 930 | tryAMAGICbin(pow,opASSIGN); | |
| 800401ee JH |
931 | svl = sv_2num(TOPm1s); |
| 932 | svr = sv_2num(TOPs); | |
| 52a96ae6 HS |
933 | #ifdef PERL_PRESERVE_IVUV |
| 934 | /* For integer to integer power, we do the calculation by hand wherever | |
| 935 | we're sure it is safe; otherwise we call pow() and try to convert to | |
| 936 | integer afterwards. */ | |
| 58d76dfd | 937 | { |
| 800401ee JH |
938 | SvIV_please(svr); |
| 939 | if (SvIOK(svr)) { | |
| 940 | SvIV_please(svl); | |
| 941 | if (SvIOK(svl)) { | |
| 900658e3 PF |
942 | UV power; |
| 943 | bool baseuok; | |
| 944 | UV baseuv; | |
| 945 | ||
| 800401ee JH |
946 | if (SvUOK(svr)) { |
| 947 | power = SvUVX(svr); | |
| 900658e3 | 948 | } else { |
| 800401ee | 949 | const IV iv = SvIVX(svr); |
| 900658e3 PF |
950 | if (iv >= 0) { |
| 951 | power = iv; | |
| 952 | } else { | |
| 953 | goto float_it; /* Can't do negative powers this way. */ | |
| 954 | } | |
| 955 | } | |
| 956 | ||
| 800401ee | 957 | baseuok = SvUOK(svl); |
| 900658e3 | 958 | if (baseuok) { |
| 800401ee | 959 | baseuv = SvUVX(svl); |
| 900658e3 | 960 | } else { |
| 800401ee | 961 | const IV iv = SvIVX(svl); |
| 900658e3 PF |
962 | if (iv >= 0) { |
| 963 | baseuv = iv; | |
| 964 | baseuok = TRUE; /* effectively it's a UV now */ | |
| 965 | } else { | |
| 966 | baseuv = -iv; /* abs, baseuok == false records sign */ | |
| 967 | } | |
| 968 | } | |
| 52a96ae6 HS |
969 | /* now we have integer ** positive integer. */ |
| 970 | is_int = 1; | |
| 971 | ||
| 972 | /* foo & (foo - 1) is zero only for a power of 2. */ | |
| 58d76dfd | 973 | if (!(baseuv & (baseuv - 1))) { |
| 52a96ae6 | 974 | /* We are raising power-of-2 to a positive integer. |
| 58d76dfd JH |
975 | The logic here will work for any base (even non-integer |
| 976 | bases) but it can be less accurate than | |
| 977 | pow (base,power) or exp (power * log (base)) when the | |
| 978 | intermediate values start to spill out of the mantissa. | |
| 979 | With powers of 2 we know this can't happen. | |
| 980 | And powers of 2 are the favourite thing for perl | |
| 981 | programmers to notice ** not doing what they mean. */ | |
| 982 | NV result = 1.0; | |
| 983 | NV base = baseuok ? baseuv : -(NV)baseuv; | |
| 900658e3 PF |
984 | |
| 985 | if (power & 1) { | |
| 986 | result *= base; | |
| 987 | } | |
| 988 | while (power >>= 1) { | |
| 989 | base *= base; | |
| 990 | if (power & 1) { | |
| 991 | result *= base; | |
| 992 | } | |
| 993 | } | |
| 58d76dfd JH |
994 | SP--; |
| 995 | SETn( result ); | |
| 800401ee | 996 | SvIV_please(svr); |
| 58d76dfd | 997 | RETURN; |
| 52a96ae6 HS |
998 | } else { |
| 999 | register unsigned int highbit = 8 * sizeof(UV); | |
| 900658e3 PF |
1000 | register unsigned int diff = 8 * sizeof(UV); |
| 1001 | while (diff >>= 1) { | |
| 1002 | highbit -= diff; | |
| 1003 | if (baseuv >> highbit) { | |
| 1004 | highbit += diff; | |
| 1005 | } | |
| 52a96ae6 HS |
1006 | } |
| 1007 | /* we now have baseuv < 2 ** highbit */ | |
| 1008 | if (power * highbit <= 8 * sizeof(UV)) { | |
| 1009 | /* result will definitely fit in UV, so use UV math | |
| 1010 | on same algorithm as above */ | |
| 1011 | register UV result = 1; | |
| 1012 | register UV base = baseuv; | |
| 900658e3 PF |
1013 | const bool odd_power = (bool)(power & 1); |
| 1014 | if (odd_power) { | |
| 1015 | result *= base; | |
| 1016 | } | |
| 1017 | while (power >>= 1) { | |
| 1018 | base *= base; | |
| 1019 | if (power & 1) { | |
| 52a96ae6 | 1020 | result *= base; |
| 52a96ae6 HS |
1021 | } |
| 1022 | } | |
| 1023 | SP--; | |
| 0615a994 | 1024 | if (baseuok || !odd_power) |
| 52a96ae6 HS |
1025 | /* answer is positive */ |
| 1026 | SETu( result ); | |
| 1027 | else if (result <= (UV)IV_MAX) | |
| 1028 | /* answer negative, fits in IV */ | |
| 1029 | SETi( -(IV)result ); | |
| 1030 | else if (result == (UV)IV_MIN) | |
| 1031 | /* 2's complement assumption: special case IV_MIN */ | |
| 1032 | SETi( IV_MIN ); | |
| 1033 | else | |
| 1034 | /* answer negative, doesn't fit */ | |
| 1035 | SETn( -(NV)result ); | |
| 1036 | RETURN; | |
| 1037 | } | |
| 1038 | } | |
| 1039 | } | |
| 1040 | } | |
| 58d76dfd | 1041 | } |
| 52a96ae6 | 1042 | float_it: |
| 58d76dfd | 1043 | #endif |
| a0d0e21e | 1044 | { |
| 4efa5a16 RD |
1045 | NV right = SvNV(svr); |
| 1046 | NV left = SvNV(svl); | |
| 1047 | (void)POPs; | |
| 3aaeb624 JA |
1048 | |
| 1049 | #if defined(USE_LONG_DOUBLE) && defined(HAS_AIX_POWL_NEG_BASE_BUG) | |
| 1050 | /* | |
| 1051 | We are building perl with long double support and are on an AIX OS | |
| 1052 | afflicted with a powl() function that wrongly returns NaNQ for any | |
| 1053 | negative base. This was reported to IBM as PMR #23047-379 on | |
| 1054 | 03/06/2006. The problem exists in at least the following versions | |
| 1055 | of AIX and the libm fileset, and no doubt others as well: | |
| 1056 | ||
| 1057 | AIX 4.3.3-ML10 bos.adt.libm 4.3.3.50 | |
| 1058 | AIX 5.1.0-ML04 bos.adt.libm 5.1.0.29 | |
| 1059 | AIX 5.2.0 bos.adt.libm 5.2.0.85 | |
| 1060 | ||
| 1061 | So, until IBM fixes powl(), we provide the following workaround to | |
| 1062 | handle the problem ourselves. Our logic is as follows: for | |
| 1063 | negative bases (left), we use fmod(right, 2) to check if the | |
| 1064 | exponent is an odd or even integer: | |
| 1065 | ||
| 1066 | - if odd, powl(left, right) == -powl(-left, right) | |
| 1067 | - if even, powl(left, right) == powl(-left, right) | |
| 1068 | ||
| 1069 | If the exponent is not an integer, the result is rightly NaNQ, so | |
| 1070 | we just return that (as NV_NAN). | |
| 1071 | */ | |
| 1072 | ||
| 1073 | if (left < 0.0) { | |
| 1074 | NV mod2 = Perl_fmod( right, 2.0 ); | |
| 1075 | if (mod2 == 1.0 || mod2 == -1.0) { /* odd integer */ | |
| 1076 | SETn( -Perl_pow( -left, right) ); | |
| 1077 | } else if (mod2 == 0.0) { /* even integer */ | |
| 1078 | SETn( Perl_pow( -left, right) ); | |
| 1079 | } else { /* fractional power */ | |
| 1080 | SETn( NV_NAN ); | |
| 1081 | } | |
| 1082 | } else { | |
| 1083 | SETn( Perl_pow( left, right) ); | |
| 1084 | } | |
| 1085 | #else | |
| 52a96ae6 | 1086 | SETn( Perl_pow( left, right) ); |
| 3aaeb624 JA |
1087 | #endif /* HAS_AIX_POWL_NEG_BASE_BUG */ |
| 1088 | ||
| 52a96ae6 HS |
1089 | #ifdef PERL_PRESERVE_IVUV |
| 1090 | if (is_int) | |
| 800401ee | 1091 | SvIV_please(svr); |
| 52a96ae6 HS |
1092 | #endif |
| 1093 | RETURN; | |
| 93a17b20 | 1094 | } |
| a0d0e21e LW |
1095 | } |
| 1096 | ||
| 1097 | PP(pp_multiply) | |
| 1098 | { | |
| 800401ee JH |
1099 | dVAR; dSP; dATARGET; SV *svl, *svr; |
| 1100 | tryAMAGICbin(mult,opASSIGN); | |
| 1101 | svl = sv_2num(TOPm1s); | |
| 1102 | svr = sv_2num(TOPs); | |
| 28e5dec8 | 1103 | #ifdef PERL_PRESERVE_IVUV |
| 800401ee JH |
1104 | SvIV_please(svr); |
| 1105 | if (SvIOK(svr)) { | |
| 28e5dec8 JH |
1106 | /* Unless the left argument is integer in range we are going to have to |
| 1107 | use NV maths. Hence only attempt to coerce the right argument if | |
| 1108 | we know the left is integer. */ | |
| 1109 | /* Left operand is defined, so is it IV? */ | |
| 800401ee JH |
1110 | SvIV_please(svl); |
| 1111 | if (SvIOK(svl)) { | |
| 1112 | bool auvok = SvUOK(svl); | |
| 1113 | bool buvok = SvUOK(svr); | |
| 28e5dec8 JH |
1114 | const UV topmask = (~ (UV)0) << (4 * sizeof (UV)); |
| 1115 | const UV botmask = ~((~ (UV)0) << (4 * sizeof (UV))); | |
| 1116 | UV alow; | |
| 1117 | UV ahigh; | |
| 1118 | UV blow; | |
| 1119 | UV bhigh; | |
| 1120 | ||
| 1121 | if (auvok) { | |
| 800401ee | 1122 | alow = SvUVX(svl); |
| 28e5dec8 | 1123 | } else { |
| 800401ee | 1124 | const IV aiv = SvIVX(svl); |
| 28e5dec8 JH |
1125 | if (aiv >= 0) { |
| 1126 | alow = aiv; | |
| 1127 | auvok = TRUE; /* effectively it's a UV now */ | |
| 1128 | } else { | |
| 1129 | alow = -aiv; /* abs, auvok == false records sign */ | |
| 1130 | } | |
| 1131 | } | |
| 1132 | if (buvok) { | |
| 800401ee | 1133 | blow = SvUVX(svr); |
| 28e5dec8 | 1134 | } else { |
| 800401ee | 1135 | const IV biv = SvIVX(svr); |
| 28e5dec8 JH |
1136 | if (biv >= 0) { |
| 1137 | blow = biv; | |
| 1138 | buvok = TRUE; /* effectively it's a UV now */ | |
| 1139 | } else { | |
| 1140 | blow = -biv; /* abs, buvok == false records sign */ | |
| 1141 | } | |
| 1142 | } | |
| 1143 | ||
| 1144 | /* If this does sign extension on unsigned it's time for plan B */ | |
| 1145 | ahigh = alow >> (4 * sizeof (UV)); | |
| 1146 | alow &= botmask; | |
| 1147 | bhigh = blow >> (4 * sizeof (UV)); | |
| 1148 | blow &= botmask; | |
| 1149 | if (ahigh && bhigh) { | |
| 6f207bd3 | 1150 | NOOP; |
| 28e5dec8 JH |
1151 | /* eg 32 bit is at least 0x10000 * 0x10000 == 0x100000000 |
| 1152 | which is overflow. Drop to NVs below. */ | |
| 1153 | } else if (!ahigh && !bhigh) { | |
| 1154 | /* eg 32 bit is at most 0xFFFF * 0xFFFF == 0xFFFE0001 | |
| 1155 | so the unsigned multiply cannot overflow. */ | |
| c445ea15 | 1156 | const UV product = alow * blow; |
| 28e5dec8 JH |
1157 | if (auvok == buvok) { |
| 1158 | /* -ve * -ve or +ve * +ve gives a +ve result. */ | |
| 1159 | SP--; | |
| 1160 | SETu( product ); | |
| 1161 | RETURN; | |
| 1162 | } else if (product <= (UV)IV_MIN) { | |
| 1163 | /* 2s complement assumption that (UV)-IV_MIN is correct. */ | |
| 1164 | /* -ve result, which could overflow an IV */ | |
| 1165 | SP--; | |
| 25716404 | 1166 | SETi( -(IV)product ); |
| 28e5dec8 JH |
1167 | RETURN; |
| 1168 | } /* else drop to NVs below. */ | |
| 1169 | } else { | |
| 1170 | /* One operand is large, 1 small */ | |
| 1171 | UV product_middle; | |
| 1172 | if (bhigh) { | |
| 1173 | /* swap the operands */ | |
| 1174 | ahigh = bhigh; | |
| 1175 | bhigh = blow; /* bhigh now the temp var for the swap */ | |
| 1176 | blow = alow; | |
| 1177 | alow = bhigh; | |
| 1178 | } | |
| 1179 | /* now, ((ahigh * blow) << half_UV_len) + (alow * blow) | |
| 1180 | multiplies can't overflow. shift can, add can, -ve can. */ | |
| 1181 | product_middle = ahigh * blow; | |
| 1182 | if (!(product_middle & topmask)) { | |
| 1183 | /* OK, (ahigh * blow) won't lose bits when we shift it. */ | |
| 1184 | UV product_low; | |
| 1185 | product_middle <<= (4 * sizeof (UV)); | |
| 1186 | product_low = alow * blow; | |
| 1187 | ||
| 1188 | /* as for pp_add, UV + something mustn't get smaller. | |
| 1189 | IIRC ANSI mandates this wrapping *behaviour* for | |
| 1190 | unsigned whatever the actual representation*/ | |
| 1191 | product_low += product_middle; | |
| 1192 | if (product_low >= product_middle) { | |
| 1193 | /* didn't overflow */ | |
| 1194 | if (auvok == buvok) { | |
| 1195 | /* -ve * -ve or +ve * +ve gives a +ve result. */ | |
| 1196 | SP--; | |
| 1197 | SETu( product_low ); | |
| 1198 | RETURN; | |
| 1199 | } else if (product_low <= (UV)IV_MIN) { | |
| 1200 | /* 2s complement assumption again */ | |
| 1201 | /* -ve result, which could overflow an IV */ | |
| 1202 | SP--; | |
| 25716404 | 1203 | SETi( -(IV)product_low ); |
| 28e5dec8 JH |
1204 | RETURN; |
| 1205 | } /* else drop to NVs below. */ | |
| 1206 | } | |
| 1207 | } /* product_middle too large */ | |
| 1208 | } /* ahigh && bhigh */ | |
| 800401ee JH |
1209 | } /* SvIOK(svl) */ |
| 1210 | } /* SvIOK(svr) */ | |
| 28e5dec8 | 1211 | #endif |
| a0d0e21e | 1212 | { |
| 4efa5a16 RD |
1213 | NV right = SvNV(svr); |
| 1214 | NV left = SvNV(svl); | |
| 1215 | (void)POPs; | |
| a0d0e21e LW |
1216 | SETn( left * right ); |
| 1217 | RETURN; | |
| 79072805 | 1218 | } |
| a0d0e21e LW |
1219 | } |
| 1220 | ||
| 1221 | PP(pp_divide) | |
| 1222 | { | |
| 800401ee JH |
1223 | dVAR; dSP; dATARGET; SV *svl, *svr; |
| 1224 | tryAMAGICbin(div,opASSIGN); | |
| 1225 | svl = sv_2num(TOPm1s); | |
| 1226 | svr = sv_2num(TOPs); | |
| 5479d192 | 1227 | /* Only try to do UV divide first |
| 68795e93 | 1228 | if ((SLOPPYDIVIDE is true) or |
| 5479d192 NC |
1229 | (PERL_PRESERVE_IVUV is true and one or both SV is a UV too large |
| 1230 | to preserve)) | |
| 1231 | The assumption is that it is better to use floating point divide | |
| 1232 | whenever possible, only doing integer divide first if we can't be sure. | |
| 1233 | If NV_PRESERVES_UV is true then we know at compile time that no UV | |
| 1234 | can be too large to preserve, so don't need to compile the code to | |
| 1235 | test the size of UVs. */ | |
| 1236 | ||
| a0d0e21e | 1237 | #ifdef SLOPPYDIVIDE |
| 5479d192 NC |
1238 | # define PERL_TRY_UV_DIVIDE |
| 1239 | /* ensure that 20./5. == 4. */ | |
| a0d0e21e | 1240 | #else |
| 5479d192 NC |
1241 | # ifdef PERL_PRESERVE_IVUV |
| 1242 | # ifndef NV_PRESERVES_UV | |
| 1243 | # define PERL_TRY_UV_DIVIDE | |
| 1244 | # endif | |
| 1245 | # endif | |
| a0d0e21e | 1246 | #endif |
| 5479d192 NC |
1247 | |
| 1248 | #ifdef PERL_TRY_UV_DIVIDE | |
| 800401ee JH |
1249 | SvIV_please(svr); |
| 1250 | if (SvIOK(svr)) { | |
| 1251 | SvIV_please(svl); | |
| 1252 | if (SvIOK(svl)) { | |
| 1253 | bool left_non_neg = SvUOK(svl); | |
| 1254 | bool right_non_neg = SvUOK(svr); | |
| 5479d192 NC |
1255 | UV left; |
| 1256 | UV right; | |
| 1257 | ||
| 1258 | if (right_non_neg) { | |
| 800401ee | 1259 | right = SvUVX(svr); |
| 5479d192 NC |
1260 | } |
| 1261 | else { | |
| 800401ee | 1262 | const IV biv = SvIVX(svr); |
| 5479d192 NC |
1263 | if (biv >= 0) { |
| 1264 | right = biv; | |
| 1265 | right_non_neg = TRUE; /* effectively it's a UV now */ | |
| 1266 | } | |
| 1267 | else { | |
| 1268 | right = -biv; | |
| 1269 | } | |
| 1270 | } | |
| 1271 | /* historically undef()/0 gives a "Use of uninitialized value" | |
| 1272 | warning before dieing, hence this test goes here. | |
| 1273 | If it were immediately before the second SvIV_please, then | |
| 1274 | DIE() would be invoked before left was even inspected, so | |
| 1275 | no inpsection would give no warning. */ | |
| 1276 | if (right == 0) | |
| 1277 | DIE(aTHX_ "Illegal division by zero"); | |
| 1278 | ||
| 1279 | if (left_non_neg) { | |
| 800401ee | 1280 | left = SvUVX(svl); |
| 5479d192 NC |
1281 | } |
| 1282 | else { | |
| 800401ee | 1283 | const IV aiv = SvIVX(svl); |
| 5479d192 NC |
1284 | if (aiv >= 0) { |
| 1285 | left = aiv; | |
| 1286 | left_non_neg = TRUE; /* effectively it's a UV now */ | |
| 1287 | } | |
| 1288 | else { | |
| 1289 | left = -aiv; | |
| 1290 | } | |
| 1291 | } | |
| 1292 | ||
| 1293 | if (left >= right | |
| 1294 | #ifdef SLOPPYDIVIDE | |
| 1295 | /* For sloppy divide we always attempt integer division. */ | |
| 1296 | #else | |
| 1297 | /* Otherwise we only attempt it if either or both operands | |
| 1298 | would not be preserved by an NV. If both fit in NVs | |
| 0c2ee62a NC |
1299 | we fall through to the NV divide code below. However, |
| 1300 | as left >= right to ensure integer result here, we know that | |
| 1301 | we can skip the test on the right operand - right big | |
| 1302 | enough not to be preserved can't get here unless left is | |
| 1303 | also too big. */ | |
| 1304 | ||
| 1305 | && (left > ((UV)1 << NV_PRESERVES_UV_BITS)) | |
| 5479d192 NC |
1306 | #endif |
| 1307 | ) { | |
| 1308 | /* Integer division can't overflow, but it can be imprecise. */ | |
| 1b6737cc | 1309 | const UV result = left / right; |
| 5479d192 NC |
1310 | if (result * right == left) { |
| 1311 | SP--; /* result is valid */ | |
| 1312 | if (left_non_neg == right_non_neg) { | |
| 1313 | /* signs identical, result is positive. */ | |
| 1314 | SETu( result ); | |
| 1315 | RETURN; | |
| 1316 | } | |
| 1317 | /* 2s complement assumption */ | |
| 1318 | if (result <= (UV)IV_MIN) | |
| 91f3b821 | 1319 | SETi( -(IV)result ); |
| 5479d192 NC |
1320 | else { |
| 1321 | /* It's exact but too negative for IV. */ | |
| 1322 | SETn( -(NV)result ); | |
| 1323 | } | |
| 1324 | RETURN; | |
| 1325 | } /* tried integer divide but it was not an integer result */ | |
| 32fdb065 | 1326 | } /* else (PERL_ABS(result) < 1.0) or (both UVs in range for NV) */ |
| 5479d192 NC |
1327 | } /* left wasn't SvIOK */ |
| 1328 | } /* right wasn't SvIOK */ | |
| 1329 | #endif /* PERL_TRY_UV_DIVIDE */ | |
| 1330 | { | |
| 4efa5a16 RD |
1331 | NV right = SvNV(svr); |
| 1332 | NV left = SvNV(svl); | |
| 1333 | (void)POPs;(void)POPs; | |
| ebc6a117 PD |
1334 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
| 1335 | if (! Perl_isnan(right) && right == 0.0) | |
| 1336 | #else | |
| 5479d192 | 1337 | if (right == 0.0) |
| ebc6a117 | 1338 | #endif |
| 5479d192 NC |
1339 | DIE(aTHX_ "Illegal division by zero"); |
| 1340 | PUSHn( left / right ); | |
| 1341 | RETURN; | |
| 79072805 | 1342 | } |
| a0d0e21e LW |
1343 | } |
| 1344 | ||
| 1345 | PP(pp_modulo) | |
| 1346 | { | |
| 97aff369 | 1347 | dVAR; dSP; dATARGET; tryAMAGICbin(modulo,opASSIGN); |
| a0d0e21e | 1348 | { |
| 9c5ffd7c JH |
1349 | UV left = 0; |
| 1350 | UV right = 0; | |
| dc656993 JH |
1351 | bool left_neg = FALSE; |
| 1352 | bool right_neg = FALSE; | |
| e2c88acc NC |
1353 | bool use_double = FALSE; |
| 1354 | bool dright_valid = FALSE; | |
| 9c5ffd7c JH |
1355 | NV dright = 0.0; |
| 1356 | NV dleft = 0.0; | |
| 800401ee JH |
1357 | SV * svl; |
| 1358 | SV * const svr = sv_2num(TOPs); | |
| 1359 | SvIV_please(svr); | |
| 1360 | if (SvIOK(svr)) { | |
| 1361 | right_neg = !SvUOK(svr); | |
| e2c88acc | 1362 | if (!right_neg) { |
| 800401ee | 1363 | right = SvUVX(svr); |
| e2c88acc | 1364 | } else { |
| 800401ee | 1365 | const IV biv = SvIVX(svr); |
| e2c88acc NC |
1366 | if (biv >= 0) { |
| 1367 | right = biv; | |
| 1368 | right_neg = FALSE; /* effectively it's a UV now */ | |
| 1369 | } else { | |
| 1370 | right = -biv; | |
| 1371 | } | |
| 1372 | } | |
| 1373 | } | |
| 1374 | else { | |
| 4efa5a16 | 1375 | dright = SvNV(svr); |
| 787eafbd IZ |
1376 | right_neg = dright < 0; |
| 1377 | if (right_neg) | |
| 1378 | dright = -dright; | |
| e2c88acc NC |
1379 | if (dright < UV_MAX_P1) { |
| 1380 | right = U_V(dright); | |
| 1381 | dright_valid = TRUE; /* In case we need to use double below. */ | |
| 1382 | } else { | |
| 1383 | use_double = TRUE; | |
| 1384 | } | |
| 787eafbd | 1385 | } |
| 4efa5a16 | 1386 | sp--; |
| a0d0e21e | 1387 | |
| e2c88acc NC |
1388 | /* At this point use_double is only true if right is out of range for |
| 1389 | a UV. In range NV has been rounded down to nearest UV and | |
| 1390 | use_double false. */ | |
| 800401ee JH |
1391 | svl = sv_2num(TOPs); |
| 1392 | SvIV_please(svl); | |
| 1393 | if (!use_double && SvIOK(svl)) { | |
| 1394 | if (SvIOK(svl)) { | |
| 1395 | left_neg = !SvUOK(svl); | |
| e2c88acc | 1396 | if (!left_neg) { |
| 800401ee | 1397 | left = SvUVX(svl); |
| e2c88acc | 1398 | } else { |
| 800401ee | 1399 | const IV aiv = SvIVX(svl); |
| e2c88acc NC |
1400 | if (aiv >= 0) { |
| 1401 | left = aiv; | |
| 1402 | left_neg = FALSE; /* effectively it's a UV now */ | |
| 1403 | } else { | |
| 1404 | left = -aiv; | |
| 1405 | } | |
| 1406 | } | |
| 1407 | } | |
| 1408 | } | |
| 787eafbd | 1409 | else { |
| 4efa5a16 | 1410 | dleft = SvNV(svl); |
| 787eafbd IZ |
1411 | left_neg = dleft < 0; |
| 1412 | if (left_neg) | |
| 1413 | dleft = -dleft; | |
| 68dc0745 | 1414 | |
| e2c88acc NC |
1415 | /* This should be exactly the 5.6 behaviour - if left and right are |
| 1416 | both in range for UV then use U_V() rather than floor. */ | |
| 1417 | if (!use_double) { | |
| 1418 | if (dleft < UV_MAX_P1) { | |
| 1419 | /* right was in range, so is dleft, so use UVs not double. | |
| 1420 | */ | |
| 1421 | left = U_V(dleft); | |
| 1422 | } | |
| 1423 | /* left is out of range for UV, right was in range, so promote | |
| 1424 | right (back) to double. */ | |
| 1425 | else { | |
| 1426 | /* The +0.5 is used in 5.6 even though it is not strictly | |
| 1427 | consistent with the implicit +0 floor in the U_V() | |
| 1428 | inside the #if 1. */ | |
| 1429 | dleft = Perl_floor(dleft + 0.5); | |
| 1430 | use_double = TRUE; | |
| 1431 | if (dright_valid) | |
| 1432 | dright = Perl_floor(dright + 0.5); | |
| 1433 | else | |
| 1434 | dright = right; | |
| 1435 | } | |
| 1436 | } | |
| 1437 | } | |
| 4efa5a16 | 1438 | sp--; |
| 787eafbd | 1439 | if (use_double) { |
| 65202027 | 1440 | NV dans; |
| 787eafbd | 1441 | |
| 787eafbd | 1442 | if (!dright) |
| cea2e8a9 | 1443 | DIE(aTHX_ "Illegal modulus zero"); |
| 787eafbd | 1444 | |
| 65202027 | 1445 | dans = Perl_fmod(dleft, dright); |
| 787eafbd IZ |
1446 | if ((left_neg != right_neg) && dans) |
| 1447 | dans = dright - dans; | |
| 1448 | if (right_neg) | |
| 1449 | dans = -dans; | |
| 1450 | sv_setnv(TARG, dans); | |
| 1451 | } | |
| 1452 | else { | |
| 1453 | UV ans; | |
| 1454 | ||
| 787eafbd | 1455 | if (!right) |
| cea2e8a9 | 1456 | DIE(aTHX_ "Illegal modulus zero"); |
| 787eafbd IZ |
1457 | |
| 1458 | ans = left % right; | |
| 1459 | if ((left_neg != right_neg) && ans) | |
| 1460 | ans = right - ans; | |
| 1461 | if (right_neg) { | |
| 1462 | /* XXX may warn: unary minus operator applied to unsigned type */ | |
| 1463 | /* could change -foo to be (~foo)+1 instead */ | |
| 1464 | if (ans <= ~((UV)IV_MAX)+1) | |
| 1465 | sv_setiv(TARG, ~ans+1); | |
| 1466 | else | |
| 65202027 | 1467 | sv_setnv(TARG, -(NV)ans); |
| 787eafbd IZ |
1468 | } |
| 1469 | else | |
| 1470 | sv_setuv(TARG, ans); | |
| 1471 | } | |
| 1472 | PUSHTARG; | |
| 1473 | RETURN; | |
| 79072805 | 1474 | } |
| a0d0e21e | 1475 | } |
| 79072805 | 1476 | |
| a0d0e21e LW |
1477 | PP(pp_repeat) |
| 1478 | { | |
| 97aff369 | 1479 | dVAR; dSP; dATARGET; tryAMAGICbin(repeat,opASSIGN); |
| 748a9306 | 1480 | { |
| 2b573ace JH |
1481 | register IV count; |
| 1482 | dPOPss; | |
| 5b295bef | 1483 | SvGETMAGIC(sv); |
| 2b573ace JH |
1484 | if (SvIOKp(sv)) { |
| 1485 | if (SvUOK(sv)) { | |
| 1b6737cc | 1486 | const UV uv = SvUV(sv); |
| 2b573ace JH |
1487 | if (uv > IV_MAX) |
| 1488 | count = IV_MAX; /* The best we can do? */ | |
| 1489 | else | |
| 1490 | count = uv; | |
| 1491 | } else { | |
| 0bd48802 | 1492 | const IV iv = SvIV(sv); |
| 2b573ace JH |
1493 | if (iv < 0) |
| 1494 | count = 0; | |
| 1495 | else | |
| 1496 | count = iv; | |
| 1497 | } | |
| 1498 | } | |
| 1499 | else if (SvNOKp(sv)) { | |
| 1b6737cc | 1500 | const NV nv = SvNV(sv); |
| 2b573ace JH |
1501 | if (nv < 0.0) |
| 1502 | count = 0; | |
| 1503 | else | |
| 1504 | count = (IV)nv; | |
| 1505 | } | |
| 1506 | else | |
| 4ea561bc | 1507 | count = SvIV(sv); |
| 533c011a | 1508 | if (GIMME == G_ARRAY && PL_op->op_private & OPpREPEAT_DOLIST) { |
| a0d0e21e | 1509 | dMARK; |
| 0bd48802 AL |
1510 | static const char oom_list_extend[] = "Out of memory during list extend"; |
| 1511 | const I32 items = SP - MARK; | |
| 1512 | const I32 max = items * count; | |
| 79072805 | 1513 | |
| 2b573ace JH |
1514 | MEM_WRAP_CHECK_1(max, SV*, oom_list_extend); |
| 1515 | /* Did the max computation overflow? */ | |
| 27d5b266 | 1516 | if (items > 0 && max > 0 && (max < items || max < count)) |
| 2b573ace | 1517 | Perl_croak(aTHX_ oom_list_extend); |
| a0d0e21e LW |
1518 | MEXTEND(MARK, max); |
| 1519 | if (count > 1) { | |
| 1520 | while (SP > MARK) { | |
| 976c8a39 JH |
1521 | #if 0 |
| 1522 | /* This code was intended to fix 20010809.028: | |
| 1523 | ||
| 1524 | $x = 'abcd'; | |
| 1525 | for (($x =~ /./g) x 2) { | |
| 1526 | print chop; # "abcdabcd" expected as output. | |
| 1527 | } | |
| 1528 | ||
| 1529 | * but that change (#11635) broke this code: | |
| 1530 | ||
| 1531 | $x = [("foo")x2]; # only one "foo" ended up in the anonlist. | |
| 1532 | ||
| 1533 | * I can't think of a better fix that doesn't introduce | |
| 1534 | * an efficiency hit by copying the SVs. The stack isn't | |
| 1535 | * refcounted, and mortalisation obviously doesn't | |
| 1536 | * Do The Right Thing when the stack has more than | |
| 1537 | * one pointer to the same mortal value. | |
| 1538 | * .robin. | |
| 1539 | */ | |
| e30acc16 RH |
1540 | if (*SP) { |
| 1541 | *SP = sv_2mortal(newSVsv(*SP)); | |
| 1542 | SvREADONLY_on(*SP); | |
| 1543 | } | |
| 976c8a39 JH |
1544 | #else |
| 1545 | if (*SP) | |
| 1546 | SvTEMP_off((*SP)); | |
| 1547 | #endif | |
| a0d0e21e | 1548 | SP--; |
| 79072805 | 1549 | } |
| a0d0e21e LW |
1550 | MARK++; |
| 1551 | repeatcpy((char*)(MARK + items), (char*)MARK, | |
| 1552 | items * sizeof(SV*), count - 1); | |
| 1553 | SP += max; | |
| 79072805 | 1554 | } |
| a0d0e21e LW |
1555 | else if (count <= 0) |
| 1556 | SP -= items; | |
| 79072805 | 1557 | } |
| a0d0e21e | 1558 | else { /* Note: mark already snarfed by pp_list */ |
| 0bd48802 | 1559 | SV * const tmpstr = POPs; |
| a0d0e21e | 1560 | STRLEN len; |
| 9b877dbb | 1561 | bool isutf; |
| 2b573ace JH |
1562 | static const char oom_string_extend[] = |
| 1563 | "Out of memory during string extend"; | |
| a0d0e21e | 1564 | |
| a0d0e21e LW |
1565 | SvSetSV(TARG, tmpstr); |
| 1566 | SvPV_force(TARG, len); | |
| 9b877dbb | 1567 | isutf = DO_UTF8(TARG); |
| 8ebc5c01 | 1568 | if (count != 1) { |
| 1569 | if (count < 1) | |
| 1570 | SvCUR_set(TARG, 0); | |
| 1571 | else { | |
| c445ea15 | 1572 | const STRLEN max = (UV)count * len; |
| 19a94d75 | 1573 | if (len > MEM_SIZE_MAX / count) |
| 2b573ace JH |
1574 | Perl_croak(aTHX_ oom_string_extend); |
| 1575 | MEM_WRAP_CHECK_1(max, char, oom_string_extend); | |
| 8569b9dc | 1576 | SvGROW(TARG, max + 1); |
| a0d0e21e | 1577 | repeatcpy(SvPVX(TARG) + len, SvPVX(TARG), len, count - 1); |
| b162af07 | 1578 | SvCUR_set(TARG, SvCUR(TARG) * count); |
| 7a4c00b4 | 1579 | } |
| a0d0e21e | 1580 | *SvEND(TARG) = '\0'; |
| a0d0e21e | 1581 | } |
| dfcb284a GS |
1582 | if (isutf) |
| 1583 | (void)SvPOK_only_UTF8(TARG); | |
| 1584 | else | |
| 1585 | (void)SvPOK_only(TARG); | |
| b80b6069 RH |
1586 | |
| 1587 | if (PL_op->op_private & OPpREPEAT_DOLIST) { | |
| 1588 | /* The parser saw this as a list repeat, and there | |
| 1589 | are probably several items on the stack. But we're | |
| 1590 | in scalar context, and there's no pp_list to save us | |
| 1591 | now. So drop the rest of the items -- robin@kitsite.com | |
| 1592 | */ | |
| 1593 | dMARK; | |
| 1594 | SP = MARK; | |
| 1595 | } | |
| a0d0e21e | 1596 | PUSHTARG; |
| 79072805 | 1597 | } |
| a0d0e21e | 1598 | RETURN; |
| 748a9306 | 1599 | } |
| a0d0e21e | 1600 | } |
| 79072805 | 1601 | |
| a0d0e21e LW |
1602 | PP(pp_subtract) |
| 1603 | { | |
| 800401ee JH |
1604 | dVAR; dSP; dATARGET; bool useleft; SV *svl, *svr; |
| 1605 | tryAMAGICbin(subtr,opASSIGN); | |
| 1606 | svl = sv_2num(TOPm1s); | |
| 1607 | svr = sv_2num(TOPs); | |
| 1608 | useleft = USE_LEFT(svl); | |
| 28e5dec8 | 1609 | #ifdef PERL_PRESERVE_IVUV |
| 7dca457a NC |
1610 | /* See comments in pp_add (in pp_hot.c) about Overflow, and how |
| 1611 | "bad things" happen if you rely on signed integers wrapping. */ | |
| 800401ee JH |
1612 | SvIV_please(svr); |
| 1613 | if (SvIOK(svr)) { | |
| 28e5dec8 JH |
1614 | /* Unless the left argument is integer in range we are going to have to |
| 1615 | use NV maths. Hence only attempt to coerce the right argument if | |
| 1616 | we know the left is integer. */ | |
| 9c5ffd7c JH |
1617 | register UV auv = 0; |
| 1618 | bool auvok = FALSE; | |
| 7dca457a NC |
1619 | bool a_valid = 0; |
| 1620 | ||
| 28e5dec8 | 1621 | if (!useleft) { |
| 7dca457a NC |
1622 | auv = 0; |
| 1623 | a_valid = auvok = 1; | |
| 1624 | /* left operand is undef, treat as zero. */ | |
| 28e5dec8 JH |
1625 | } else { |
| 1626 | /* Left operand is defined, so is it IV? */ | |
| 800401ee JH |
1627 | SvIV_please(svl); |
| 1628 | if (SvIOK(svl)) { | |
| 1629 | if ((auvok = SvUOK(svl))) | |
| 1630 | auv = SvUVX(svl); | |
| 7dca457a | 1631 | else { |
| 800401ee | 1632 | register const IV aiv = SvIVX(svl); |
| 7dca457a NC |
1633 | if (aiv >= 0) { |
| 1634 | auv = aiv; | |
| 1635 | auvok = 1; /* Now acting as a sign flag. */ | |
| 1636 | } else { /* 2s complement assumption for IV_MIN */ | |
| 1637 | auv = (UV)-aiv; | |
| 28e5dec8 | 1638 | } |
| 7dca457a NC |
1639 | } |
| 1640 | a_valid = 1; | |
| 1641 | } | |
| 1642 | } | |
| 1643 | if (a_valid) { | |
| 1644 | bool result_good = 0; | |
| 1645 | UV result; | |
| 1646 | register UV buv; | |
| 800401ee | 1647 | bool buvok = SvUOK(svr); |
| 9041c2e3 | 1648 | |
| 7dca457a | 1649 | if (buvok) |
| 800401ee | 1650 | buv = SvUVX(svr); |
| 7dca457a | 1651 | else { |
| 800401ee | 1652 | register const IV biv = SvIVX(svr); |
| 7dca457a NC |
1653 | if (biv >= 0) { |
| 1654 | buv = biv; | |
| 1655 | buvok = 1; | |
| 1656 | } else | |
| 1657 | buv = (UV)-biv; | |
| 1658 | } | |
| 1659 | /* ?uvok if value is >= 0. basically, flagged as UV if it's +ve, | |
| 602f51c4 | 1660 | else "IV" now, independent of how it came in. |
| 7dca457a NC |
1661 | if a, b represents positive, A, B negative, a maps to -A etc |
| 1662 | a - b => (a - b) | |
| 1663 | A - b => -(a + b) | |
| 1664 | a - B => (a + b) | |
| 1665 | A - B => -(a - b) | |
| 1666 | all UV maths. negate result if A negative. | |
| 1667 | subtract if signs same, add if signs differ. */ | |
| 1668 | ||
| 1669 | if (auvok ^ buvok) { | |
| 1670 | /* Signs differ. */ | |
| 1671 | result = auv + buv; | |
| 1672 | if (result >= auv) | |
| 1673 | result_good = 1; | |
| 1674 | } else { | |
| 1675 | /* Signs same */ | |
| 1676 | if (auv >= buv) { | |
| 1677 | result = auv - buv; | |
| 1678 | /* Must get smaller */ | |
| 1679 | if (result <= auv) | |
| 1680 | result_good = 1; | |
| 1681 | } else { | |
| 1682 | result = buv - auv; | |
| 1683 | if (result <= buv) { | |
| 1684 | /* result really should be -(auv-buv). as its negation | |
| 1685 | of true value, need to swap our result flag */ | |
| 1686 | auvok = !auvok; | |
| 1687 | result_good = 1; | |
| 28e5dec8 | 1688 | } |
| 28e5dec8 JH |
1689 | } |
| 1690 | } | |
| 7dca457a NC |
1691 | if (result_good) { |
| 1692 | SP--; | |
| 1693 | if (auvok) | |
| 1694 | SETu( result ); | |
| 1695 | else { | |
| 1696 | /* Negate result */ | |
| 1697 | if (result <= (UV)IV_MIN) | |
| 1698 | SETi( -(IV)result ); | |
| 1699 | else { | |
| 1700 | /* result valid, but out of range for IV. */ | |
| 1701 | SETn( -(NV)result ); | |
| 1702 | } | |
| 1703 | } | |
| 1704 | RETURN; | |
| 1705 | } /* Overflow, drop through to NVs. */ | |
| 28e5dec8 JH |
1706 | } |
| 1707 | } | |
| 1708 | #endif | |
| a0d0e21e | 1709 | { |
| 4efa5a16 RD |
1710 | NV value = SvNV(svr); |
| 1711 | (void)POPs; | |
| 1712 | ||
| 28e5dec8 JH |
1713 | if (!useleft) { |
| 1714 | /* left operand is undef, treat as zero - value */ | |
| 1715 | SETn(-value); | |
| 1716 | RETURN; | |
| 1717 | } | |
| 4efa5a16 | 1718 | SETn( SvNV(svl) - value ); |
| 28e5dec8 | 1719 | RETURN; |
| 79072805 | 1720 | } |
| a0d0e21e | 1721 | } |
| 79072805 | 1722 | |
| a0d0e21e LW |
1723 | PP(pp_left_shift) |
| 1724 | { | |
| 97aff369 | 1725 | dVAR; dSP; dATARGET; tryAMAGICbin(lshift,opASSIGN); |
| a0d0e21e | 1726 | { |
| 1b6737cc | 1727 | const IV shift = POPi; |
| d0ba1bd2 | 1728 | if (PL_op->op_private & HINT_INTEGER) { |
| c445ea15 | 1729 | const IV i = TOPi; |
| 972b05a9 | 1730 | SETi(i << shift); |
| d0ba1bd2 JH |
1731 | } |
| 1732 | else { | |
| c445ea15 | 1733 | const UV u = TOPu; |
| 972b05a9 | 1734 | SETu(u << shift); |
| d0ba1bd2 | 1735 | } |
| 55497cff | 1736 | RETURN; |
| 79072805 | 1737 | } |
| a0d0e21e | 1738 | } |
| 79072805 | 1739 | |
| a0d0e21e LW |
1740 | PP(pp_right_shift) |
| 1741 | { | |
| 97aff369 | 1742 | dVAR; dSP; dATARGET; tryAMAGICbin(rshift,opASSIGN); |
| a0d0e21e | 1743 | { |
| 1b6737cc | 1744 | const IV shift = POPi; |
| d0ba1bd2 | 1745 | if (PL_op->op_private & HINT_INTEGER) { |
| 0bd48802 | 1746 | const IV i = TOPi; |
| 972b05a9 | 1747 | SETi(i >> shift); |
| d0ba1bd2 JH |
1748 | } |
| 1749 | else { | |
| 0bd48802 | 1750 | const UV u = TOPu; |
| 972b05a9 | 1751 | SETu(u >> shift); |
| d0ba1bd2 | 1752 | } |
| a0d0e21e | 1753 | RETURN; |
| 93a17b20 | 1754 | } |
| 79072805 LW |
1755 | } |
| 1756 | ||
| a0d0e21e | 1757 | PP(pp_lt) |
| 79072805 | 1758 | { |
| 97aff369 | 1759 | dVAR; dSP; tryAMAGICbinSET(lt,0); |
| 28e5dec8 JH |
1760 | #ifdef PERL_PRESERVE_IVUV |
| 1761 | SvIV_please(TOPs); | |
| 1762 | if (SvIOK(TOPs)) { | |
| 1763 | SvIV_please(TOPm1s); | |
| 1764 | if (SvIOK(TOPm1s)) { | |
| 1765 | bool auvok = SvUOK(TOPm1s); | |
| 1766 | bool buvok = SvUOK(TOPs); | |
| a227d84d | 1767 | |
| 28e5dec8 | 1768 | if (!auvok && !buvok) { /* ## IV < IV ## */ |
| 1b6737cc AL |
1769 | const IV aiv = SvIVX(TOPm1s); |
| 1770 | const IV biv = SvIVX(TOPs); | |
| 28e5dec8 JH |
1771 | |
| 1772 | SP--; | |
| 1773 | SETs(boolSV(aiv < biv)); | |
| 1774 | RETURN; | |
| 1775 | } | |
| 1776 | if (auvok && buvok) { /* ## UV < UV ## */ | |
| 1b6737cc AL |
1777 | const UV auv = SvUVX(TOPm1s); |
| 1778 | const UV buv = SvUVX(TOPs); | |
| 28e5dec8 JH |
1779 | |
| 1780 | SP--; | |
| 1781 | SETs(boolSV(auv < buv)); | |
| 1782 | RETURN; | |
| 1783 | } | |
| 1784 | if (auvok) { /* ## UV < IV ## */ | |
| 1785 | UV auv; | |
| 1b6737cc | 1786 | const IV biv = SvIVX(TOPs); |
| 28e5dec8 JH |
1787 | SP--; |
| 1788 | if (biv < 0) { | |
| 1789 | /* As (a) is a UV, it's >=0, so it cannot be < */ | |
| 1790 | SETs(&PL_sv_no); | |
| 1791 | RETURN; | |
| 1792 | } | |
| 1793 | auv = SvUVX(TOPs); | |
| 28e5dec8 JH |
1794 | SETs(boolSV(auv < (UV)biv)); |
| 1795 | RETURN; | |
| 1796 | } | |
| 1797 | { /* ## IV < UV ## */ | |
| 1b6737cc | 1798 | const IV aiv = SvIVX(TOPm1s); |
| 28e5dec8 JH |
1799 | UV buv; |
| 1800 | ||
| 28e5dec8 JH |
1801 | if (aiv < 0) { |
| 1802 | /* As (b) is a UV, it's >=0, so it must be < */ | |
| 1803 | SP--; | |
| 1804 | SETs(&PL_sv_yes); | |
| 1805 | RETURN; | |
| 1806 | } | |
| 1807 | buv = SvUVX(TOPs); | |
| 1808 | SP--; | |
| 28e5dec8 JH |
1809 | SETs(boolSV((UV)aiv < buv)); |
| 1810 | RETURN; | |
| 1811 | } | |
| 1812 | } | |
| 1813 | } | |
| 1814 | #endif | |
| 30de85b6 | 1815 | #ifndef NV_PRESERVES_UV |
| 50fb3111 NC |
1816 | #ifdef PERL_PRESERVE_IVUV |
| 1817 | else | |
| 1818 | #endif | |
| 0bdaccee NC |
1819 | if (SvROK(TOPs) && !SvAMAGIC(TOPs) && SvROK(TOPm1s) && !SvAMAGIC(TOPm1s)) { |
| 1820 | SP--; | |
| 1821 | SETs(boolSV(SvRV(TOPs) < SvRV(TOPp1s))); | |
| 1822 | RETURN; | |
| 1823 | } | |
| 30de85b6 | 1824 | #endif |
| a0d0e21e | 1825 | { |
| cab190d4 JD |
1826 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
| 1827 | dPOPTOPnnrl; | |
| 1828 | if (Perl_isnan(left) || Perl_isnan(right)) | |
| 1829 | RETSETNO; | |
| 1830 | SETs(boolSV(left < right)); | |
| 1831 | #else | |
| a0d0e21e | 1832 | dPOPnv; |
| 54310121 | 1833 | SETs(boolSV(TOPn < value)); |
| cab190d4 | 1834 | #endif |
| a0d0e21e | 1835 | RETURN; |
| 79072805 | 1836 | } |
| a0d0e21e | 1837 | } |
| 79072805 | 1838 | |
| a0d0e21e LW |
1839 | PP(pp_gt) |
| 1840 | { | |
| 97aff369 | 1841 | dVAR; dSP; tryAMAGICbinSET(gt,0); |
| 28e5dec8 JH |
1842 | #ifdef PERL_PRESERVE_IVUV |
| 1843 | SvIV_please(TOPs); | |
| 1844 | if (SvIOK(TOPs)) { | |
| 1845 | SvIV_please(TOPm1s); | |
| 1846 | if (SvIOK(TOPm1s)) { | |
| 1847 | bool auvok = SvUOK(TOPm1s); | |
| 1848 | bool buvok = SvUOK(TOPs); | |
| a227d84d | 1849 | |
| 28e5dec8 | 1850 | if (!auvok && !buvok) { /* ## IV > IV ## */ |
| 1b6737cc AL |
1851 | const IV aiv = SvIVX(TOPm1s); |
| 1852 | const IV biv = SvIVX(TOPs); | |
| 1853 | ||
| 28e5dec8 JH |
1854 | SP--; |
| 1855 | SETs(boolSV(aiv > biv)); | |
| 1856 | RETURN; | |
| 1857 | } | |
| 1858 | if (auvok && buvok) { /* ## UV > UV ## */ | |
| 1b6737cc AL |
1859 | const UV auv = SvUVX(TOPm1s); |
| 1860 | const UV buv = SvUVX(TOPs); | |
| 28e5dec8 JH |
1861 | |
| 1862 | SP--; | |
| 1863 | SETs(boolSV(auv > buv)); | |
| 1864 | RETURN; | |
| 1865 | } | |
| 1866 | if (auvok) { /* ## UV > IV ## */ | |
| 1867 | UV auv; | |
| 1b6737cc AL |
1868 | const IV biv = SvIVX(TOPs); |
| 1869 | ||
| 28e5dec8 JH |
1870 | SP--; |
| 1871 | if (biv < 0) { | |
| 1872 | /* As (a) is a UV, it's >=0, so it must be > */ | |
| 1873 | SETs(&PL_sv_yes); | |
| 1874 | RETURN; | |
| 1875 | } | |
| 1876 | auv = SvUVX(TOPs); | |
| 28e5dec8 JH |
1877 | SETs(boolSV(auv > (UV)biv)); |
| 1878 | RETURN; | |
| 1879 | } | |
| 1880 | { /* ## IV > UV ## */ | |
| 1b6737cc | 1881 | const IV aiv = SvIVX(TOPm1s); |
| 28e5dec8 JH |
1882 | UV buv; |
| 1883 | ||
| 28e5dec8 JH |
1884 | if (aiv < 0) { |
| 1885 | /* As (b) is a UV, it's >=0, so it cannot be > */ | |
| 1886 | SP--; | |
| 1887 | SETs(&PL_sv_no); | |
| 1888 | RETURN; | |
| 1889 | } | |
| 1890 | buv = SvUVX(TOPs); | |
| 1891 | SP--; | |
| 28e5dec8 JH |
1892 | SETs(boolSV((UV)aiv > buv)); |
| 1893 | RETURN; | |
| 1894 | } | |
| 1895 | } | |
| 1896 | } | |
| 1897 | #endif | |
| 30de85b6 | 1898 | #ifndef NV_PRESERVES_UV |
| 50fb3111 NC |
1899 | #ifdef PERL_PRESERVE_IVUV |
| 1900 | else | |
| 1901 | #endif | |
| 0bdaccee | 1902 | if (SvROK(TOPs) && !SvAMAGIC(TOPs) && SvROK(TOPm1s) && !SvAMAGIC(TOPm1s)) { |
| 30de85b6 NC |
1903 | SP--; |
| 1904 | SETs(boolSV(SvRV(TOPs) > SvRV(TOPp1s))); | |
| 1905 | RETURN; | |
| 1906 | } | |
| 1907 | #endif | |
| a0d0e21e | 1908 | { |
| cab190d4 JD |
1909 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
| 1910 | dPOPTOPnnrl; | |
| 1911 | if (Perl_isnan(left) || Perl_isnan(right)) | |
| 1912 | RETSETNO; | |
| 1913 | SETs(boolSV(left > right)); | |
| 1914 | #else | |
| a0d0e21e | 1915 | dPOPnv; |
| 54310121 | 1916 | SETs(boolSV(TOPn > value)); |
| cab190d4 | 1917 | #endif |
| a0d0e21e | 1918 | RETURN; |
| 79072805 | 1919 | } |
| a0d0e21e LW |
1920 | } |
| 1921 | ||
| 1922 | PP(pp_le) | |
| 1923 | { | |
| 97aff369 | 1924 | dVAR; dSP; tryAMAGICbinSET(le,0); |
| 28e5dec8 JH |
1925 | #ifdef PERL_PRESERVE_IVUV |
| 1926 | SvIV_please(TOPs); | |
| 1927 | if (SvIOK(TOPs)) { | |
| 1928 | SvIV_please(TOPm1s); | |
| 1929 | if (SvIOK(TOPm1s)) { | |
| 1930 | bool auvok = SvUOK(TOPm1s); | |
| 1931 | bool buvok = SvUOK(TOPs); | |
| a227d84d | 1932 | |
| 28e5dec8 | 1933 | if (!auvok && !buvok) { /* ## IV <= IV ## */ |
| 1b6737cc AL |
1934 | const IV aiv = SvIVX(TOPm1s); |
| 1935 | const IV biv = SvIVX(TOPs); | |
| 28e5dec8 JH |
1936 | |
| 1937 | SP--; | |
| 1938 | SETs(boolSV(aiv <= biv)); | |
| 1939 | RETURN; | |
| 1940 | } | |
| 1941 | if (auvok && buvok) { /* ## UV <= UV ## */ | |
| 1942 | UV auv = SvUVX(TOPm1s); | |
| 1943 | UV buv = SvUVX(TOPs); | |
| 1944 | ||
| 1945 | SP--; | |
| 1946 | SETs(boolSV(auv <= buv)); | |
| 1947 | RETURN; | |
| 1948 | } | |
| 1949 | if (auvok) { /* ## UV <= IV ## */ | |
| 1950 | UV auv; | |
| 1b6737cc AL |
1951 | const IV biv = SvIVX(TOPs); |
| 1952 | ||
| 28e5dec8 JH |
1953 | SP--; |
| 1954 | if (biv < 0) { | |
| 1955 | /* As (a) is a UV, it's >=0, so a cannot be <= */ | |
| 1956 | SETs(&PL_sv_no); | |
| 1957 | RETURN; | |
| 1958 | } | |
| 1959 | auv = SvUVX(TOPs); | |
| 28e5dec8 JH |
1960 | SETs(boolSV(auv <= (UV)biv)); |
| 1961 | RETURN; | |
| 1962 | } | |
| 1963 | { /* ## IV <= UV ## */ | |
| 1b6737cc | 1964 | const IV aiv = SvIVX(TOPm1s); |
| 28e5dec8 | 1965 | UV buv; |
| 1b6737cc | 1966 | |
| 28e5dec8 JH |
1967 | if (aiv < 0) { |
| 1968 | /* As (b) is a UV, it's >=0, so a must be <= */ | |
| 1969 | SP--; | |
| 1970 | SETs(&PL_sv_yes); | |
| 1971 | RETURN; | |
| 1972 | } | |
| 1973 | buv = SvUVX(TOPs); | |
| 1974 | SP--; | |
| 28e5dec8 JH |
1975 | SETs(boolSV((UV)aiv <= buv)); |
| 1976 | RETURN; | |
| 1977 | } | |
| 1978 | } | |
| 1979 | } | |
| 1980 | #endif | |
| 30de85b6 | 1981 | #ifndef NV_PRESERVES_UV |
| 50fb3111 NC |
1982 | #ifdef PERL_PRESERVE_IVUV |
| 1983 | else | |
| 1984 | #endif | |
| 0bdaccee | 1985 | if (SvROK(TOPs) && !SvAMAGIC(TOPs) && SvROK(TOPm1s) && !SvAMAGIC(TOPm1s)) { |
| 30de85b6 NC |
1986 | SP--; |
| 1987 | SETs(boolSV(SvRV(TOPs) <= SvRV(TOPp1s))); | |
| 1988 | RETURN; | |
| 1989 | } | |
| 1990 | #endif | |
| a0d0e21e | 1991 | { |
| cab190d4 JD |
1992 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
| 1993 | dPOPTOPnnrl; | |
| 1994 | if (Perl_isnan(left) || Perl_isnan(right)) | |
| 1995 | RETSETNO; | |
| 1996 | SETs(boolSV(left <= right)); | |
| 1997 | #else | |
| a0d0e21e | 1998 | dPOPnv; |
| 54310121 | 1999 | SETs(boolSV(TOPn <= value)); |
| cab190d4 | 2000 | #endif |
| a0d0e21e | 2001 | RETURN; |
| 79072805 | 2002 | } |
| a0d0e21e LW |
2003 | } |
| 2004 | ||
| 2005 | PP(pp_ge) | |
| 2006 | { | |
| 97aff369 | 2007 | dVAR; dSP; tryAMAGICbinSET(ge,0); |
| 28e5dec8 JH |
2008 | #ifdef PERL_PRESERVE_IVUV |
| 2009 | SvIV_please(TOPs); | |
| 2010 | if (SvIOK(TOPs)) { | |
| 2011 | SvIV_please(TOPm1s); | |
| 2012 | if (SvIOK(TOPm1s)) { | |
| 2013 | bool auvok = SvUOK(TOPm1s); | |
| 2014 | bool buvok = SvUOK(TOPs); | |
| a227d84d | 2015 | |
| 28e5dec8 | 2016 | if (!auvok && !buvok) { /* ## IV >= IV ## */ |
| 1b6737cc AL |
2017 | const IV aiv = SvIVX(TOPm1s); |
| 2018 | const IV biv = SvIVX(TOPs); | |
| 2019 | ||
| 28e5dec8 JH |
2020 | SP--; |
| 2021 | SETs(boolSV(aiv >= biv)); | |
| 2022 | RETURN; | |
| 2023 | } | |
| 2024 | if (auvok && buvok) { /* ## UV >= UV ## */ | |
| 1b6737cc AL |
2025 | const UV auv = SvUVX(TOPm1s); |
| 2026 | const UV buv = SvUVX(TOPs); | |
| 2027 | ||
| 28e5dec8 JH |
2028 | SP--; |
| 2029 | SETs(boolSV(auv >= buv)); | |
| 2030 | RETURN; | |
| 2031 | } | |
| 2032 | if (auvok) { /* ## UV >= IV ## */ | |
| 2033 | UV auv; | |
| 1b6737cc AL |
2034 | const IV biv = SvIVX(TOPs); |
| 2035 | ||
| 28e5dec8 JH |
2036 | SP--; |
| 2037 | if (biv < 0) { | |
| 2038 | /* As (a) is a UV, it's >=0, so it must be >= */ | |
| 2039 | SETs(&PL_sv_yes); | |
| 2040 | RETURN; | |
| 2041 | } | |
| 2042 | auv = SvUVX(TOPs); | |
| 28e5dec8 JH |
2043 | SETs(boolSV(auv >= (UV)biv)); |
| 2044 | RETURN; | |
| 2045 | } | |
| 2046 | { /* ## IV >= UV ## */ | |
| 1b6737cc | 2047 | const IV aiv = SvIVX(TOPm1s); |
| 28e5dec8 | 2048 | UV buv; |
| 1b6737cc | 2049 | |
| 28e5dec8 JH |
2050 | if (aiv < 0) { |
| 2051 | /* As (b) is a UV, it's >=0, so a cannot be >= */ | |
| 2052 | SP--; | |
| 2053 | SETs(&PL_sv_no); | |
| 2054 | RETURN; | |
| 2055 | } | |
| 2056 | buv = SvUVX(TOPs); | |
| 2057 | SP--; | |
| 28e5dec8 JH |
2058 | SETs(boolSV((UV)aiv >= buv)); |
| 2059 | RETURN; | |
| 2060 | } | |
| 2061 | } | |
| 2062 | } | |
| 2063 | #endif | |
| 30de85b6 | 2064 | #ifndef NV_PRESERVES_UV |
| 50fb3111 NC |
2065 | #ifdef PERL_PRESERVE_IVUV |
| 2066 | else | |
| 2067 | #endif | |
| 0bdaccee | 2068 | if (SvROK(TOPs) && !SvAMAGIC(TOPs) && SvROK(TOPm1s) && !SvAMAGIC(TOPm1s)) { |
| 30de85b6 NC |
2069 | SP--; |
| 2070 | SETs(boolSV(SvRV(TOPs) >= SvRV(TOPp1s))); | |
| 2071 | RETURN; | |
| 2072 | } | |
| 2073 | #endif | |
| a0d0e21e | 2074 | { |
| cab190d4 JD |
2075 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
| 2076 | dPOPTOPnnrl; | |
| 2077 | if (Perl_isnan(left) || Perl_isnan(right)) | |
| 2078 | RETSETNO; | |
| 2079 | SETs(boolSV(left >= right)); | |
| 2080 | #else | |
| a0d0e21e | 2081 | dPOPnv; |
| 54310121 | 2082 | SETs(boolSV(TOPn >= value)); |
| cab190d4 | 2083 | #endif |
| a0d0e21e | 2084 | RETURN; |
| 79072805 | 2085 | } |
| a0d0e21e | 2086 | } |
| 79072805 | 2087 | |
| a0d0e21e LW |
2088 | PP(pp_ne) |
| 2089 | { | |
| 97aff369 | 2090 | dVAR; dSP; tryAMAGICbinSET(ne,0); |
| 3bb2c415 | 2091 | #ifndef NV_PRESERVES_UV |
| 0bdaccee | 2092 | if (SvROK(TOPs) && !SvAMAGIC(TOPs) && SvROK(TOPm1s) && !SvAMAGIC(TOPm1s)) { |
| e61d22ef NC |
2093 | SP--; |
| 2094 | SETs(boolSV(SvRV(TOPs) != SvRV(TOPp1s))); | |
| 3bb2c415 JH |
2095 | RETURN; |
| 2096 | } | |
| 2097 | #endif | |
| 28e5dec8 JH |
2098 | #ifdef PERL_PRESERVE_IVUV |
| 2099 | SvIV_please(TOPs); | |
| 2100 | if (SvIOK(TOPs)) { | |
| 2101 | SvIV_please(TOPm1s); | |
| 2102 | if (SvIOK(TOPm1s)) { | |
| 0bd48802 AL |
2103 | const bool auvok = SvUOK(TOPm1s); |
| 2104 | const bool buvok = SvUOK(TOPs); | |
| a227d84d | 2105 | |
| 30de85b6 NC |
2106 | if (auvok == buvok) { /* ## IV == IV or UV == UV ## */ |
| 2107 | /* Casting IV to UV before comparison isn't going to matter | |
| 2108 | on 2s complement. On 1s complement or sign&magnitude | |
| 2109 | (if we have any of them) it could make negative zero | |
| 2110 | differ from normal zero. As I understand it. (Need to | |
| 2111 | check - is negative zero implementation defined behaviour | |
| 2112 | anyway?). NWC */ | |
| 1b6737cc AL |
2113 | const UV buv = SvUVX(POPs); |
| 2114 | const UV auv = SvUVX(TOPs); | |
| 2115 | ||
| 28e5dec8 JH |
2116 | SETs(boolSV(auv != buv)); |
| 2117 | RETURN; | |
| 2118 | } | |
| 2119 | { /* ## Mixed IV,UV ## */ | |
| 2120 | IV iv; | |
| 2121 | UV uv; | |
| 2122 | ||
| 2123 | /* != is commutative so swap if needed (save code) */ | |
| 2124 | if (auvok) { | |
| 2125 | /* swap. top of stack (b) is the iv */ | |
| 2126 | iv = SvIVX(TOPs); | |
| 2127 | SP--; | |
| 2128 | if (iv < 0) { | |
| 2129 | /* As (a) is a UV, it's >0, so it cannot be == */ | |
| 2130 | SETs(&PL_sv_yes); | |
| 2131 | RETURN; | |
| 2132 | } | |
| 2133 | uv = SvUVX(TOPs); | |
| 2134 | } else { | |
| 2135 | iv = SvIVX(TOPm1s); | |
| 2136 | SP--; | |
| 2137 | if (iv < 0) { | |
| 2138 | /* As (b) is a UV, it's >0, so it cannot be == */ | |
| 2139 | SETs(&PL_sv_yes); | |
| 2140 | RETURN; | |
| 2141 | } | |
| 2142 | uv = SvUVX(*(SP+1)); /* Do I want TOPp1s() ? */ | |
| 2143 | } | |
| 28e5dec8 JH |
2144 | SETs(boolSV((UV)iv != uv)); |
| 2145 | RETURN; | |
| 2146 | } | |
| 2147 | } | |
| 2148 | } | |
| 2149 | #endif | |
| a0d0e21e | 2150 | { |
| cab190d4 JD |
2151 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
| 2152 | dPOPTOPnnrl; | |
| 2153 | if (Perl_isnan(left) || Perl_isnan(right)) | |
| 2154 | RETSETYES; | |
| 2155 | SETs(boolSV(left != right)); | |
| 2156 | #else | |
| a0d0e21e | 2157 | dPOPnv; |
| 54310121 | 2158 | SETs(boolSV(TOPn != value)); |
| cab190d4 | 2159 | #endif |
| a0d0e21e LW |
2160 | RETURN; |
| 2161 | } | |
| 79072805 LW |
2162 | } |
| 2163 | ||
| a0d0e21e | 2164 | PP(pp_ncmp) |
| 79072805 | 2165 | { |
| 97aff369 | 2166 | dVAR; dSP; dTARGET; tryAMAGICbin(ncmp,0); |
| d8c7644e | 2167 | #ifndef NV_PRESERVES_UV |
| 0bdaccee | 2168 | if (SvROK(TOPs) && !SvAMAGIC(TOPs) && SvROK(TOPm1s) && !SvAMAGIC(TOPm1s)) { |
| 0bd48802 AL |
2169 | const UV right = PTR2UV(SvRV(POPs)); |
| 2170 | const UV left = PTR2UV(SvRV(TOPs)); | |
| e61d22ef | 2171 | SETi((left > right) - (left < right)); |
| d8c7644e JH |
2172 | RETURN; |
| 2173 | } | |
| 2174 | #endif | |
| 28e5dec8 JH |
2175 | #ifdef PERL_PRESERVE_IVUV |
| 2176 | /* Fortunately it seems NaN isn't IOK */ | |
| 2177 | SvIV_please(TOPs); | |
| 2178 | if (SvIOK(TOPs)) { | |
| 2179 | SvIV_please(TOPm1s); | |
| 2180 | if (SvIOK(TOPm1s)) { | |
| 1b6737cc AL |
2181 | const bool leftuvok = SvUOK(TOPm1s); |
| 2182 | const bool rightuvok = SvUOK(TOPs); | |
| 28e5dec8 JH |
2183 | I32 value; |
| 2184 | if (!leftuvok && !rightuvok) { /* ## IV <=> IV ## */ | |
| 1b6737cc AL |
2185 | const IV leftiv = SvIVX(TOPm1s); |
| 2186 | const IV rightiv = SvIVX(TOPs); | |
| 28e5dec8 JH |
2187 | |
| 2188 | if (leftiv > rightiv) | |
| 2189 | value = 1; | |
| 2190 | else if (leftiv < rightiv) | |
| 2191 | value = -1; | |
| 2192 | else | |
| 2193 | value = 0; | |
| 2194 | } else if (leftuvok && rightuvok) { /* ## UV <=> UV ## */ | |
| 1b6737cc AL |
2195 | const UV leftuv = SvUVX(TOPm1s); |
| 2196 | const UV rightuv = SvUVX(TOPs); | |
| 28e5dec8 JH |
2197 | |
| 2198 | if (leftuv > rightuv) | |
| 2199 | value = 1; | |
| 2200 | else if (leftuv < rightuv) | |
| 2201 | value = -1; | |
| 2202 | else | |
| 2203 | value = 0; | |
| 2204 | } else if (leftuvok) { /* ## UV <=> IV ## */ | |
| 1b6737cc | 2205 | const IV rightiv = SvIVX(TOPs); |
| 28e5dec8 JH |
2206 | if (rightiv < 0) { |
| 2207 | /* As (a) is a UV, it's >=0, so it cannot be < */ | |
| 2208 | value = 1; | |
| 2209 | } else { | |
| 1b6737cc | 2210 | const UV leftuv = SvUVX(TOPm1s); |
| 83bac5dd | 2211 | if (leftuv > (UV)rightiv) { |
| 28e5dec8 JH |
2212 | value = 1; |
| 2213 | } else if (leftuv < (UV)rightiv) { | |
| 2214 | value = -1; | |
| 2215 | } else { | |
| 2216 | value = 0; | |
| 2217 | } | |
| 2218 | } | |
| 2219 | } else { /* ## IV <=> UV ## */ | |
| 1b6737cc | 2220 | const IV leftiv = SvIVX(TOPm1s); |
| 28e5dec8 JH |
2221 | if (leftiv < 0) { |
| 2222 | /* As (b) is a UV, it's >=0, so it must be < */ | |
| 2223 | value = -1; | |
| 2224 | } else { | |
| 1b6737cc | 2225 | const UV rightuv = SvUVX(TOPs); |
| 83bac5dd | 2226 | if ((UV)leftiv > rightuv) { |
| 28e5dec8 | 2227 | value = 1; |
| 83bac5dd | 2228 | } else if ((UV)leftiv < rightuv) { |
| 28e5dec8 JH |
2229 | value = -1; |
| 2230 | } else { | |
| 2231 | value = 0; | |
| 2232 | } | |
| 2233 | } | |
| 2234 | } | |
| 2235 | SP--; | |
| 2236 | SETi(value); | |
| 2237 | RETURN; | |
| 2238 | } | |
| 2239 | } | |
| 2240 | #endif | |
| a0d0e21e LW |
2241 | { |
| 2242 | dPOPTOPnnrl; | |
| 2243 | I32 value; | |
| 79072805 | 2244 | |
| a3540c92 | 2245 | #ifdef Perl_isnan |
| 1ad04cfd JH |
2246 | if (Perl_isnan(left) || Perl_isnan(right)) { |
| 2247 | SETs(&PL_sv_undef); | |
| 2248 | RETURN; | |
| 2249 | } | |
| 2250 | value = (left > right) - (left < right); | |
| 2251 | #else | |
| ff0cee69 | 2252 | if (left == right) |
| a0d0e21e | 2253 | value = 0; |
| a0d0e21e LW |
2254 | else if (left < right) |
| 2255 | value = -1; | |
| 44a8e56a | 2256 | else if (left > right) |
| 2257 | value = 1; | |
| 2258 | else { | |
| 3280af22 | 2259 | SETs(&PL_sv_undef); |
| 44a8e56a | 2260 | RETURN; |
| 2261 | } | |
| 1ad04cfd | 2262 | #endif |
| a0d0e21e LW |
2263 | SETi(value); |
| 2264 | RETURN; | |
| 79072805 | 2265 | } |
| a0d0e21e | 2266 | } |
| 79072805 | 2267 | |
| afd9910b | 2268 | PP(pp_sle) |
| a0d0e21e | 2269 | { |
| 97aff369 | 2270 | dVAR; dSP; |
| 79072805 | 2271 | |
| afd9910b NC |
2272 | int amg_type = sle_amg; |
| 2273 | int multiplier = 1; | |
| 2274 | int rhs = 1; | |
| 79072805 | 2275 | |
| afd9910b NC |
2276 | switch (PL_op->op_type) { |
| 2277 | case OP_SLT: | |
| 2278 | amg_type = slt_amg; | |
| 2279 | /* cmp < 0 */ | |
| 2280 | rhs = 0; | |
| 2281 | break; | |
| 2282 | case OP_SGT: | |
| 2283 | amg_type = sgt_amg; | |
| 2284 | /* cmp > 0 */ | |
| 2285 | multiplier = -1; | |
| 2286 | rhs = 0; | |
| 2287 | break; | |
| 2288 | case OP_SGE: | |
| 2289 | amg_type = sge_amg; | |
| 2290 | /* cmp >= 0 */ | |
| 2291 | multiplier = -1; | |
| 2292 | break; | |
| 79072805 | 2293 | } |
| 79072805 | 2294 | |
| afd9910b | 2295 | tryAMAGICbinSET_var(amg_type,0); |
| a0d0e21e LW |
2296 | { |
| 2297 | dPOPTOPssrl; | |
| 1b6737cc | 2298 | const int cmp = (IN_LOCALE_RUNTIME |
| bbce6d69 | 2299 | ? sv_cmp_locale(left, right) |
| 2300 | : sv_cmp(left, right)); | |
| afd9910b | 2301 | SETs(boolSV(cmp * multiplier < rhs)); |
| a0d0e21e LW |
2302 | RETURN; |
| 2303 | } | |
| 2304 | } | |
| 79072805 | 2305 | |
| 36477c24 | 2306 | PP(pp_seq) |
| 2307 | { | |
| 97aff369 | 2308 | dVAR; dSP; tryAMAGICbinSET(seq,0); |
| 36477c24 | 2309 | { |
| 2310 | dPOPTOPssrl; | |
| 54310121 | 2311 | SETs(boolSV(sv_eq(left, right))); |
| a0d0e21e LW |
2312 | RETURN; |
| 2313 | } | |
| 2314 | } | |
| 79072805 | 2315 | |
| a0d0e21e | 2316 | PP(pp_sne) |
| 79072805 | 2317 | { |
| 97aff369 | 2318 | dVAR; dSP; tryAMAGICbinSET(sne,0); |
| a0d0e21e LW |
2319 | { |
| 2320 | dPOPTOPssrl; | |
| 54310121 | 2321 | SETs(boolSV(!sv_eq(left, right))); |
| a0d0e21e | 2322 | RETURN; |
| 463ee0b2 | 2323 | } |
| 79072805 LW |
2324 | } |
| 2325 | ||
| a0d0e21e | 2326 | PP(pp_scmp) |
| 79072805 | 2327 | { |
| 97aff369 | 2328 | dVAR; dSP; dTARGET; tryAMAGICbin(scmp,0); |
| a0d0e21e LW |
2329 | { |
| 2330 | dPOPTOPssrl; | |
| 1b6737cc | 2331 | const int cmp = (IN_LOCALE_RUNTIME |
| bbce6d69 | 2332 | ? sv_cmp_locale(left, right) |
| 2333 | : sv_cmp(left, right)); | |
| 2334 | SETi( cmp ); | |
| a0d0e21e LW |
2335 | RETURN; |
| 2336 | } | |
| 2337 | } | |
| 79072805 | 2338 | |
| 55497cff | 2339 | PP(pp_bit_and) |
| 2340 | { | |
| 97aff369 | 2341 | dVAR; dSP; dATARGET; tryAMAGICbin(band,opASSIGN); |
| a0d0e21e LW |
2342 | { |
| 2343 | dPOPTOPssrl; | |
| 5b295bef RD |
2344 | SvGETMAGIC(left); |
| 2345 | SvGETMAGIC(right); | |
| 4633a7c4 | 2346 | if (SvNIOKp(left) || SvNIOKp(right)) { |
| d0ba1bd2 | 2347 | if (PL_op->op_private & HINT_INTEGER) { |
| 1b6737cc | 2348 | const IV i = SvIV_nomg(left) & SvIV_nomg(right); |
| 972b05a9 | 2349 | SETi(i); |
| d0ba1bd2 JH |
2350 | } |
| 2351 | else { | |
| 1b6737cc | 2352 | const UV u = SvUV_nomg(left) & SvUV_nomg(right); |
| 972b05a9 | 2353 | SETu(u); |
| d0ba1bd2 | 2354 | } |
| a0d0e21e LW |
2355 | } |
| 2356 | else { | |
| 533c011a | 2357 | do_vop(PL_op->op_type, TARG, left, right); |
| a0d0e21e LW |
2358 | SETTARG; |
| 2359 | } | |
| 2360 | RETURN; | |
| 2361 | } | |
| 2362 | } | |
| 79072805 | 2363 | |
| a0d0e21e LW |
2364 | PP(pp_bit_or) |
| 2365 | { | |
| 3658c1f1 NC |
2366 | dVAR; dSP; dATARGET; |
| 2367 | const int op_type = PL_op->op_type; | |
| 2368 | ||
| 2369 | tryAMAGICbin_var((op_type == OP_BIT_OR ? bor_amg : bxor_amg), opASSIGN); | |
| a0d0e21e LW |
2370 | { |
| 2371 | dPOPTOPssrl; | |
| 5b295bef RD |
2372 | SvGETMAGIC(left); |
| 2373 | SvGETMAGIC(right); | |
| 4633a7c4 | 2374 | if (SvNIOKp(left) || SvNIOKp(right)) { |
| d0ba1bd2 | 2375 | if (PL_op->op_private & HINT_INTEGER) { |
| 3658c1f1 NC |
2376 | const IV l = (USE_LEFT(left) ? SvIV_nomg(left) : 0); |
| 2377 | const IV r = SvIV_nomg(right); | |
| 2378 | const IV result = op_type == OP_BIT_OR ? (l | r) : (l ^ r); | |
| 2379 | SETi(result); | |
| d0ba1bd2 JH |
2380 | } |
| 2381 | else { | |
| 3658c1f1 NC |
2382 | const UV l = (USE_LEFT(left) ? SvUV_nomg(left) : 0); |
| 2383 | const UV r = SvUV_nomg(right); | |
| 2384 | const UV result = op_type == OP_BIT_OR ? (l | r) : (l ^ r); | |
| 2385 | SETu(result); | |
| d0ba1bd2 | 2386 | } |
| a0d0e21e LW |
2387 | } |
| 2388 | else { | |
| 3658c1f1 | 2389 | do_vop(op_type, TARG, left, right); |
| a0d0e21e LW |
2390 | SETTARG; |
| 2391 | } | |
| 2392 | RETURN; | |
| 79072805 | 2393 | } |
| a0d0e21e | 2394 | } |
| 79072805 | 2395 | |
| a0d0e21e LW |
2396 | PP(pp_negate) |
| 2397 | { | |
| 97aff369 | 2398 | dVAR; dSP; dTARGET; tryAMAGICun(neg); |
| a0d0e21e | 2399 | { |
| 800401ee | 2400 | SV * const sv = sv_2num(TOPs); |
| 1b6737cc | 2401 | const int flags = SvFLAGS(sv); |
| 5b295bef | 2402 | SvGETMAGIC(sv); |
| 28e5dec8 JH |
2403 | if ((flags & SVf_IOK) || ((flags & (SVp_IOK | SVp_NOK)) == SVp_IOK)) { |
| 2404 | /* It's publicly an integer, or privately an integer-not-float */ | |
| 2405 | oops_its_an_int: | |
| 9b0e499b GS |
2406 | if (SvIsUV(sv)) { |
| 2407 | if (SvIVX(sv) == IV_MIN) { | |
| 28e5dec8 | 2408 | /* 2s complement assumption. */ |
| 9b0e499b GS |
2409 | SETi(SvIVX(sv)); /* special case: -((UV)IV_MAX+1) == IV_MIN */ |
| 2410 | RETURN; | |
| 2411 | } | |
| 2412 | else if (SvUVX(sv) <= IV_MAX) { | |
| beccb14c | 2413 | SETi(-SvIVX(sv)); |
| 9b0e499b GS |
2414 | RETURN; |
| 2415 | } | |
| 2416 | } | |
| 2417 | else if (SvIVX(sv) != IV_MIN) { | |
| 2418 | SETi(-SvIVX(sv)); | |
| 2419 | RETURN; | |
| 2420 | } | |
| 28e5dec8 JH |
2421 | #ifdef PERL_PRESERVE_IVUV |
| 2422 | else { | |
| 2423 | SETu((UV)IV_MIN); | |
| 2424 | RETURN; | |
| 2425 | } | |
| 2426 | #endif | |
| 9b0e499b GS |
2427 | } |
| 2428 | if (SvNIOKp(sv)) | |
| a0d0e21e | 2429 | SETn(-SvNV(sv)); |
| 4633a7c4 | 2430 | else if (SvPOKp(sv)) { |
| a0d0e21e | 2431 | STRLEN len; |
| c445ea15 | 2432 | const char * const s = SvPV_const(sv, len); |
| bbce6d69 | 2433 | if (isIDFIRST(*s)) { |
| 76f68e9b | 2434 | sv_setpvs(TARG, "-"); |
| a0d0e21e | 2435 | sv_catsv(TARG, sv); |
| 79072805 | 2436 | } |
| a0d0e21e LW |
2437 | else if (*s == '+' || *s == '-') { |
| 2438 | sv_setsv(TARG, sv); | |
| 2439 | *SvPV_force(TARG, len) = *s == '-' ? '+' : '-'; | |
| 79072805 | 2440 | } |
| 8eb28a70 JH |
2441 | else if (DO_UTF8(sv)) { |
| 2442 | SvIV_please(sv); | |
| 2443 | if (SvIOK(sv)) | |
| 2444 | goto oops_its_an_int; | |
| 2445 | if (SvNOK(sv)) | |
| 2446 | sv_setnv(TARG, -SvNV(sv)); | |
| 2447 | else { | |
| 76f68e9b | 2448 | sv_setpvs(TARG, "-"); |
| 8eb28a70 JH |
2449 | sv_catsv(TARG, sv); |
| 2450 | } | |
| 834a4ddd | 2451 | } |
| 28e5dec8 | 2452 | else { |
| 8eb28a70 JH |
2453 | SvIV_please(sv); |
| 2454 | if (SvIOK(sv)) | |
| 2455 | goto oops_its_an_int; | |
| 2456 | sv_setnv(TARG, -SvNV(sv)); | |
| 28e5dec8 | 2457 | } |
| a0d0e21e | 2458 | SETTARG; |
| 79072805 | 2459 | } |
| 4633a7c4 LW |
2460 | else |
| 2461 | SETn(-SvNV(sv)); | |
| 79072805 | 2462 | } |
| a0d0e21e | 2463 | RETURN; |
| 79072805 LW |
2464 | } |
| 2465 | ||
| a0d0e21e | 2466 | PP(pp_not) |
| 79072805 | 2467 | { |
| 97aff369 | 2468 | dVAR; dSP; tryAMAGICunSET(not); |
| 3280af22 | 2469 | *PL_stack_sp = boolSV(!SvTRUE(*PL_stack_sp)); |
| a0d0e21e | 2470 | return NORMAL; |
| 79072805 LW |
2471 | } |
| 2472 | ||
| a0d0e21e | 2473 | PP(pp_complement) |
| 79072805 | 2474 | { |
| 97aff369 | 2475 | dVAR; dSP; dTARGET; tryAMAGICun(compl); |
| a0d0e21e LW |
2476 | { |
| 2477 | dTOPss; | |
| 5b295bef | 2478 | SvGETMAGIC(sv); |
| 4633a7c4 | 2479 | if (SvNIOKp(sv)) { |
| d0ba1bd2 | 2480 | if (PL_op->op_private & HINT_INTEGER) { |
| 1b6737cc | 2481 | const IV i = ~SvIV_nomg(sv); |
| 972b05a9 | 2482 | SETi(i); |
| d0ba1bd2 JH |
2483 | } |
| 2484 | else { | |
| 1b6737cc | 2485 | const UV u = ~SvUV_nomg(sv); |
| 972b05a9 | 2486 | SETu(u); |
| d0ba1bd2 | 2487 | } |
| a0d0e21e LW |
2488 | } |
| 2489 | else { | |
| 51723571 | 2490 | register U8 *tmps; |
| 55497cff | 2491 | register I32 anum; |
| a0d0e21e LW |
2492 | STRLEN len; |
| 2493 | ||
| 10516c54 | 2494 | (void)SvPV_nomg_const(sv,len); /* force check for uninit var */ |
| 891f9566 | 2495 | sv_setsv_nomg(TARG, sv); |
| 51723571 | 2496 | tmps = (U8*)SvPV_force(TARG, len); |
| a0d0e21e | 2497 | anum = len; |
| 1d68d6cd | 2498 | if (SvUTF8(TARG)) { |
| a1ca4561 | 2499 | /* Calculate exact length, let's not estimate. */ |
| 1d68d6cd | 2500 | STRLEN targlen = 0; |
| ba210ebe | 2501 | STRLEN l; |
| a1ca4561 YST |
2502 | UV nchar = 0; |
| 2503 | UV nwide = 0; | |
| 01f6e806 | 2504 | U8 * const send = tmps + len; |
| 74d49cd0 TS |
2505 | U8 * const origtmps = tmps; |
| 2506 | const UV utf8flags = UTF8_ALLOW_ANYUV; | |
| 1d68d6cd | 2507 | |
| 1d68d6cd | 2508 | while (tmps < send) { |
| 74d49cd0 TS |
2509 | const UV c = utf8n_to_uvchr(tmps, send-tmps, &l, utf8flags); |
| 2510 | tmps += l; | |
| 5bbb0b5a | 2511 | targlen += UNISKIP(~c); |
| a1ca4561 YST |
2512 | nchar++; |
| 2513 | if (c > 0xff) | |
| 2514 | nwide++; | |
| 1d68d6cd SC |
2515 | } |
| 2516 | ||
| 2517 | /* Now rewind strings and write them. */ | |
| 74d49cd0 | 2518 | tmps = origtmps; |
| a1ca4561 YST |
2519 | |
| 2520 | if (nwide) { | |
| 01f6e806 AL |
2521 | U8 *result; |
| 2522 | U8 *p; | |
| 2523 | ||
| 74d49cd0 | 2524 | Newx(result, targlen + 1, U8); |
| 01f6e806 | 2525 | p = result; |
| a1ca4561 | 2526 | while (tmps < send) { |
| 74d49cd0 TS |
2527 | const UV c = utf8n_to_uvchr(tmps, send-tmps, &l, utf8flags); |
| 2528 | tmps += l; | |
| 01f6e806 | 2529 | p = uvchr_to_utf8_flags(p, ~c, UNICODE_ALLOW_ANY); |
| a1ca4561 | 2530 | } |
| 01f6e806 | 2531 | *p = '\0'; |
| c1c21316 NC |
2532 | sv_usepvn_flags(TARG, (char*)result, targlen, |
| 2533 | SV_HAS_TRAILING_NUL); | |
| a1ca4561 YST |
2534 | SvUTF8_on(TARG); |
| 2535 | } | |
| 2536 | else { | |
| 01f6e806 AL |
2537 | U8 *result; |
| 2538 | U8 *p; | |
| 2539 | ||
| 74d49cd0 | 2540 | Newx(result, nchar + 1, U8); |
| 01f6e806 | 2541 | p = result; |
| a1ca4561 | 2542 | while (tmps < send) { |
| 74d49cd0 TS |
2543 | const U8 c = (U8)utf8n_to_uvchr(tmps, send-tmps, &l, utf8flags); |
| 2544 | tmps += l; | |
| 01f6e806 | 2545 | *p++ = ~c; |
| a1ca4561 | 2546 | } |
| 01f6e806 | 2547 | *p = '\0'; |
| c1c21316 | 2548 | sv_usepvn_flags(TARG, (char*)result, nchar, SV_HAS_TRAILING_NUL); |
| d0a21e00 | 2549 | SvUTF8_off(TARG); |
| 1d68d6cd | 2550 | } |
| 1d68d6cd SC |
2551 | SETs(TARG); |
| 2552 | RETURN; | |
| 2553 | } | |
| a0d0e21e | 2554 | #ifdef LIBERAL |
| 51723571 JH |
2555 | { |
| 2556 | register long *tmpl; | |
| 2557 | for ( ; anum && (unsigned long)tmps % sizeof(long); anum--, tmps++) | |
| 2558 | *tmps = ~*tmps; | |
| 2559 | tmpl = (long*)tmps; | |
| bb7a0f54 | 2560 | for ( ; anum >= (I32)sizeof(long); anum -= (I32)sizeof(long), tmpl++) |
| 51723571 JH |
2561 | *tmpl = ~*tmpl; |
| 2562 | tmps = (U8*)tmpl; | |
| 2563 | } | |
| a0d0e21e LW |
2564 | #endif |
| 2565 | for ( ; anum > 0; anum--, tmps++) | |
| 2566 | *tmps = ~*tmps; | |
| 2567 | ||
| 2568 | SETs(TARG); | |
| 2569 | } | |
| 2570 | RETURN; | |
| 2571 | } | |
| 79072805 LW |
2572 | } |
| 2573 | ||
| a0d0e21e LW |
2574 | /* integer versions of some of the above */ |
| 2575 | ||
| a0d0e21e | 2576 | PP(pp_i_multiply) |
| 79072805 | 2577 | { |
| 97aff369 | 2578 | dVAR; dSP; dATARGET; tryAMAGICbin(mult,opASSIGN); |
| a0d0e21e LW |
2579 | { |
| 2580 | dPOPTOPiirl; | |
| 2581 | SETi( left * right ); | |
| 2582 | RETURN; | |
| 2583 | } | |
| 79072805 LW |
2584 | } |
| 2585 | ||
| a0d0e21e | 2586 | PP(pp_i_divide) |
| 79072805 | 2587 | { |
| ece1bcef | 2588 | IV num; |
| 97aff369 | 2589 | dVAR; dSP; dATARGET; tryAMAGICbin(div,opASSIGN); |
| a0d0e21e LW |
2590 | { |
| 2591 | dPOPiv; | |
| 2592 | if (value == 0) | |
| ece1bcef SP |
2593 | DIE(aTHX_ "Illegal division by zero"); |
| 2594 | num = POPi; | |
| a0cec769 YST |
2595 | |
| 2596 | /* avoid FPE_INTOVF on some platforms when num is IV_MIN */ | |
| 2597 | if (value == -1) | |
| 2598 | value = - num; | |
| 2599 | else | |
| 2600 | value = num / value; | |
| a0d0e21e LW |
2601 | PUSHi( value ); |
| 2602 | RETURN; | |
| 2603 | } | |
| 79072805 LW |
2604 | } |
| 2605 | ||
| befad5d1 | 2606 | #if defined(__GLIBC__) && IVSIZE == 8 |
| 224ec323 JH |
2607 | STATIC |
| 2608 | PP(pp_i_modulo_0) | |
| befad5d1 NC |
2609 | #else |
| 2610 | PP(pp_i_modulo) | |
| 2611 | #endif | |
| 224ec323 JH |
2612 | { |
| 2613 | /* This is the vanilla old i_modulo. */ | |
| 27da23d5 | 2614 | dVAR; dSP; dATARGET; tryAMAGICbin(modulo,opASSIGN); |
| 224ec323 JH |
2615 | { |
| 2616 | dPOPTOPiirl; | |
| 2617 | if (!right) | |
| 2618 | DIE(aTHX_ "Illegal modulus zero"); | |
| a0cec769 YST |
2619 | /* avoid FPE_INTOVF on some platforms when left is IV_MIN */ |
| 2620 | if (right == -1) | |
| 2621 | SETi( 0 ); | |
| 2622 | else | |
| 2623 | SETi( left % right ); | |
| 224ec323 JH |
2624 | RETURN; |
| 2625 | } | |
| 2626 | } | |
| 2627 | ||
| 11010fa3 | 2628 | #if defined(__GLIBC__) && IVSIZE == 8 |
| 224ec323 JH |
2629 | STATIC |
| 2630 | PP(pp_i_modulo_1) | |
| befad5d1 | 2631 | |
| 224ec323 | 2632 | { |
| 224ec323 | 2633 | /* This is the i_modulo with the workaround for the _moddi3 bug |
| fce2b89e | 2634 | * in (at least) glibc 2.2.5 (the PERL_ABS() the workaround). |
| 224ec323 | 2635 | * See below for pp_i_modulo. */ |
| 5186cc12 | 2636 | dVAR; dSP; dATARGET; tryAMAGICbin(modulo,opASSIGN); |
| 224ec323 JH |
2637 | { |
| 2638 | dPOPTOPiirl; | |
| 2639 | if (!right) | |
| 2640 | DIE(aTHX_ "Illegal modulus zero"); | |
| a0cec769 YST |
2641 | /* avoid FPE_INTOVF on some platforms when left is IV_MIN */ |
| 2642 | if (right == -1) | |
| 2643 | SETi( 0 ); | |
| 2644 | else | |
| 2645 | SETi( left % PERL_ABS(right) ); | |
| 224ec323 JH |
2646 | RETURN; |
| 2647 | } | |
| 224ec323 JH |
2648 | } |
| 2649 | ||
| a0d0e21e | 2650 | PP(pp_i_modulo) |
| 79072805 | 2651 | { |
| 27da23d5 | 2652 | dVAR; dSP; dATARGET; tryAMAGICbin(modulo,opASSIGN); |
| 224ec323 JH |
2653 | { |
| 2654 | dPOPTOPiirl; | |
| 2655 | if (!right) | |
| 2656 | DIE(aTHX_ "Illegal modulus zero"); | |
| 2657 | /* The assumption is to use hereafter the old vanilla version... */ | |
| 2658 | PL_op->op_ppaddr = | |
| 2659 | PL_ppaddr[OP_I_MODULO] = | |
| 1c127fab | 2660 | Perl_pp_i_modulo_0; |
| 224ec323 JH |
2661 | /* .. but if we have glibc, we might have a buggy _moddi3 |
| 2662 | * (at least glicb 2.2.5 is known to have this bug), in other | |
| 2663 | * words our integer modulus with negative quad as the second | |
| 2664 | * argument might be broken. Test for this and re-patch the | |
| 2665 | * opcode dispatch table if that is the case, remembering to | |
| 2666 | * also apply the workaround so that this first round works | |
| 2667 | * right, too. See [perl #9402] for more information. */ | |
| 224ec323 JH |
2668 | { |
| 2669 | IV l = 3; | |
| 2670 | IV r = -10; | |
| 2671 | /* Cannot do this check with inlined IV constants since | |
| 2672 | * that seems to work correctly even with the buggy glibc. */ | |
| 2673 | if (l % r == -3) { | |
| 2674 | /* Yikes, we have the bug. | |
| 2675 | * Patch in the workaround version. */ | |
| 2676 | PL_op->op_ppaddr = | |
| 2677 | PL_ppaddr[OP_I_MODULO] = | |
| 2678 | &Perl_pp_i_modulo_1; | |
| 2679 | /* Make certain we work right this time, too. */ | |
| 32fdb065 | 2680 | right = PERL_ABS(right); |
| 224ec323 JH |
2681 | } |
| 2682 | } | |
| a0cec769 YST |
2683 | /* avoid FPE_INTOVF on some platforms when left is IV_MIN */ |
| 2684 | if (right == -1) | |
| 2685 | SETi( 0 ); | |
| 2686 | else | |
| 2687 | SETi( left % right ); | |
| 224ec323 JH |
2688 | RETURN; |
| 2689 | } | |
| 79072805 | 2690 | } |
| befad5d1 | 2691 | #endif |
| 79072805 | 2692 | |
| a0d0e21e | 2693 | PP(pp_i_add) |
| 79072805 | 2694 | { |
| 97aff369 | 2695 | dVAR; dSP; dATARGET; tryAMAGICbin(add,opASSIGN); |
| a0d0e21e | 2696 | { |
| 5e66d4f1 | 2697 | dPOPTOPiirl_ul; |
| a0d0e21e LW |
2698 | SETi( left + right ); |
| 2699 | RETURN; | |
| 79072805 | 2700 | } |
| 79072805 LW |
2701 | } |
| 2702 | ||
| a0d0e21e | 2703 | PP(pp_i_subtract) |
| 79072805 | 2704 | { |
| 97aff369 | 2705 | dVAR; dSP; dATARGET; tryAMAGICbin(subtr,opASSIGN); |
| a0d0e21e | 2706 | { |
| 5e66d4f1 | 2707 | dPOPTOPiirl_ul; |
| a0d0e21e LW |
2708 | SETi( left - right ); |
| 2709 | RETURN; | |
| 79072805 | 2710 | } |
| 79072805 LW |
2711 | } |
| 2712 | ||
| a0d0e21e | 2713 | PP(pp_i_lt) |
| 79072805 | 2714 | { |
| 97aff369 | 2715 | dVAR; dSP; tryAMAGICbinSET(lt,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_gt) |
| 79072805 | 2724 | { |
| 97aff369 | 2725 | dVAR; dSP; tryAMAGICbinSET(gt,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_le) |
| 79072805 | 2734 | { |
| 97aff369 | 2735 | dVAR; dSP; tryAMAGICbinSET(le,0); |
| a0d0e21e LW |
2736 | { |
| 2737 | dPOPTOPiirl; | |
| 54310121 | 2738 | SETs(boolSV(left <= right)); |
| a0d0e21e | 2739 | RETURN; |
| 85e6fe83 | 2740 | } |
| 79072805 LW |
2741 | } |
| 2742 | ||
| a0d0e21e | 2743 | PP(pp_i_ge) |
| 79072805 | 2744 | { |
| 97aff369 | 2745 | dVAR; dSP; tryAMAGICbinSET(ge,0); |
| a0d0e21e LW |
2746 | { |
| 2747 | dPOPTOPiirl; | |
| 54310121 | 2748 | SETs(boolSV(left >= right)); |
| a0d0e21e LW |
2749 | RETURN; |
| 2750 | } | |
| 79072805 LW |
2751 | } |
| 2752 | ||
| a0d0e21e | 2753 | PP(pp_i_eq) |
| 79072805 | 2754 | { |
| 97aff369 | 2755 | dVAR; dSP; tryAMAGICbinSET(eq,0); |
| a0d0e21e LW |
2756 | { |
| 2757 | dPOPTOPiirl; | |
| 54310121 | 2758 | SETs(boolSV(left == right)); |
| a0d0e21e LW |
2759 | RETURN; |
| 2760 | } | |
| 79072805 LW |
2761 | } |
| 2762 | ||
| a0d0e21e | 2763 | PP(pp_i_ne) |
| 79072805 | 2764 | { |
| 97aff369 | 2765 | dVAR; dSP; tryAMAGICbinSET(ne,0); |
| a0d0e21e LW |
2766 | { |
| 2767 | dPOPTOPiirl; | |
| 54310121 | 2768 | SETs(boolSV(left != right)); |
| a0d0e21e LW |
2769 | RETURN; |
| 2770 | } | |
| 79072805 LW |
2771 | } |
| 2772 | ||
| a0d0e21e | 2773 | PP(pp_i_ncmp) |
| 79072805 | 2774 | { |
| 97aff369 | 2775 | dVAR; dSP; dTARGET; tryAMAGICbin(ncmp,0); |
| a0d0e21e LW |
2776 | { |
| 2777 | dPOPTOPiirl; | |
| 2778 | I32 value; | |
| 79072805 | 2779 | |
| a0d0e21e | 2780 | if (left > right) |
| 79072805 | 2781 | value = 1; |
| a0d0e21e | 2782 | else if (left < right) |
| 79072805 | 2783 | value = -1; |
| a0d0e21e | 2784 | else |
| 79072805 | 2785 | value = 0; |
| a0d0e21e LW |
2786 | SETi(value); |
| 2787 | RETURN; | |
| 79072805 | 2788 | } |
| 85e6fe83 LW |
2789 | } |
| 2790 | ||
| 2791 | PP(pp_i_negate) | |
| 2792 | { | |
| 97aff369 | 2793 | dVAR; dSP; dTARGET; tryAMAGICun(neg); |
| 85e6fe83 LW |
2794 | SETi(-TOPi); |
| 2795 | RETURN; | |
| 2796 | } | |
| 2797 | ||
| 79072805 LW |
2798 | /* High falutin' math. */ |
| 2799 | ||
| 2800 | PP(pp_atan2) | |
| 2801 | { | |
| 97aff369 | 2802 | dVAR; dSP; dTARGET; tryAMAGICbin(atan2,0); |
| a0d0e21e LW |
2803 | { |
| 2804 | dPOPTOPnnrl; | |
| a1021d57 | 2805 | SETn(Perl_atan2(left, right)); |
| a0d0e21e LW |
2806 | RETURN; |
| 2807 | } | |
| 79072805 LW |
2808 | } |
| 2809 | ||
| 2810 | PP(pp_sin) | |
| 2811 | { | |
| 71302fe3 NC |
2812 | dVAR; dSP; dTARGET; |
| 2813 | int amg_type = sin_amg; | |
| 2814 | const char *neg_report = NULL; | |
| bc81784a | 2815 | NV (*func)(NV) = Perl_sin; |
| 71302fe3 NC |
2816 | const int op_type = PL_op->op_type; |
| 2817 | ||
| 2818 | switch (op_type) { | |
| 2819 | case OP_COS: | |
| 2820 | amg_type = cos_amg; | |
| bc81784a | 2821 | func = Perl_cos; |
| 71302fe3 NC |
2822 | break; |
| 2823 | case OP_EXP: | |
| 2824 | amg_type = exp_amg; | |
| bc81784a | 2825 | func = Perl_exp; |
| 71302fe3 NC |
2826 | break; |
| 2827 | case OP_LOG: | |
| 2828 | amg_type = log_amg; | |
| bc81784a | 2829 | func = Perl_log; |
| 71302fe3 NC |
2830 | neg_report = "log"; |
| 2831 | break; | |
| 2832 | case OP_SQRT: | |
| 2833 | amg_type = sqrt_amg; | |
| bc81784a | 2834 | func = Perl_sqrt; |
| 71302fe3 NC |
2835 | neg_report = "sqrt"; |
| 2836 | break; | |
| a0d0e21e | 2837 | } |
| 79072805 | 2838 | |
| 71302fe3 | 2839 | tryAMAGICun_var(amg_type); |
| a0d0e21e | 2840 | { |
| 1b6737cc | 2841 | const NV value = POPn; |
| 71302fe3 NC |
2842 | if (neg_report) { |
| 2843 | if (op_type == OP_LOG ? (value <= 0.0) : (value < 0.0)) { | |
| 2844 | SET_NUMERIC_STANDARD(); | |
| 2845 | DIE(aTHX_ "Can't take %s of %"NVgf, neg_report, value); | |
| 2846 | } | |
| 2847 | } | |
| 2848 | XPUSHn(func(value)); | |
| a0d0e21e LW |
2849 | RETURN; |
| 2850 | } | |
| 79072805 LW |
2851 | } |
| 2852 | ||
| 56cb0a1c AD |
2853 | /* Support Configure command-line overrides for rand() functions. |
| 2854 | After 5.005, perhaps we should replace this by Configure support | |
| 2855 | for drand48(), random(), or rand(). For 5.005, though, maintain | |
| 2856 | compatibility by calling rand() but allow the user to override it. | |
| 2857 | See INSTALL for details. --Andy Dougherty 15 July 1998 | |
| 2858 | */ | |
| 85ab1d1d JH |
2859 | /* Now it's after 5.005, and Configure supports drand48() and random(), |
| 2860 | in addition to rand(). So the overrides should not be needed any more. | |
| 2861 | --Jarkko Hietaniemi 27 September 1998 | |
| 2862 | */ | |
| 2863 | ||
| 2864 | #ifndef HAS_DRAND48_PROTO | |
| 20ce7b12 | 2865 | extern double drand48 (void); |
| 56cb0a1c AD |
2866 | #endif |
| 2867 | ||
| 79072805 LW |
2868 | PP(pp_rand) |
| 2869 | { | |
| 97aff369 | 2870 | dVAR; dSP; dTARGET; |
| 65202027 | 2871 | NV value; |
| 79072805 LW |
2872 | if (MAXARG < 1) |
| 2873 | value = 1.0; | |
| 2874 | else | |
| 2875 | value = POPn; | |
| 2876 | if (value == 0.0) | |
| 2877 | value = 1.0; | |
| 80252599 | 2878 | if (!PL_srand_called) { |
| 85ab1d1d | 2879 | (void)seedDrand01((Rand_seed_t)seed()); |
| 80252599 | 2880 | PL_srand_called = TRUE; |
| 93dc8474 | 2881 | } |
| 85ab1d1d | 2882 | value *= Drand01(); |
| 79072805 LW |
2883 | XPUSHn(value); |
| 2884 | RETURN; | |
| 2885 | } | |
| 2886 | ||
| 2887 | PP(pp_srand) | |
| 2888 | { | |
| 97aff369 | 2889 | dVAR; dSP; |
| 0bd48802 | 2890 | const UV anum = (MAXARG < 1) ? seed() : POPu; |
| 85ab1d1d | 2891 | (void)seedDrand01((Rand_seed_t)anum); |
| 80252599 | 2892 | PL_srand_called = TRUE; |
| 79072805 LW |
2893 | EXTEND(SP, 1); |
| 2894 | RETPUSHYES; | |
| 2895 | } | |
| 2896 | ||
| 79072805 LW |
2897 | PP(pp_int) |
| 2898 | { | |
| 97aff369 | 2899 | dVAR; dSP; dTARGET; tryAMAGICun(int); |
| 774d564b | 2900 | { |
| 800401ee JH |
2901 | SV * const sv = sv_2num(TOPs); |
| 2902 | const IV iv = SvIV(sv); | |
| 28e5dec8 JH |
2903 | /* XXX it's arguable that compiler casting to IV might be subtly |
| 2904 | different from modf (for numbers inside (IV_MIN,UV_MAX)) in which | |
| 2905 | else preferring IV has introduced a subtle behaviour change bug. OTOH | |
| 2906 | relying on floating point to be accurate is a bug. */ | |
| 2907 | ||
| c781a409 | 2908 | if (!SvOK(sv)) { |
| 922c4365 | 2909 | SETu(0); |
| c781a409 RD |
2910 | } |
| 2911 | else if (SvIOK(sv)) { | |
| 2912 | if (SvIsUV(sv)) | |
| 2913 | SETu(SvUV(sv)); | |
| 2914 | else | |
| 28e5dec8 | 2915 | SETi(iv); |
| c781a409 | 2916 | } |
| c781a409 RD |
2917 | else { |
| 2918 | const NV value = SvNV(sv); | |
| 1048ea30 | 2919 | if (value >= 0.0) { |
| 28e5dec8 JH |
2920 | if (value < (NV)UV_MAX + 0.5) { |
| 2921 | SETu(U_V(value)); | |
| 2922 | } else { | |
| 059a1014 | 2923 | SETn(Perl_floor(value)); |
| 28e5dec8 | 2924 | } |
| 1048ea30 | 2925 | } |
| 28e5dec8 JH |
2926 | else { |
| 2927 | if (value > (NV)IV_MIN - 0.5) { | |
| 2928 | SETi(I_V(value)); | |
| 2929 | } else { | |
| 1bbae031 | 2930 | SETn(Perl_ceil(value)); |
| 28e5dec8 JH |
2931 | } |
| 2932 | } | |
| 774d564b | 2933 | } |
| 79072805 | 2934 | } |
| 79072805 LW |
2935 | RETURN; |
| 2936 | } | |
| 2937 | ||
| 463ee0b2 LW |
2938 | PP(pp_abs) |
| 2939 | { | |
| 97aff369 | 2940 | dVAR; dSP; dTARGET; tryAMAGICun(abs); |
| a0d0e21e | 2941 | { |
| 800401ee | 2942 | SV * const sv = sv_2num(TOPs); |
| 28e5dec8 | 2943 | /* This will cache the NV value if string isn't actually integer */ |
| 800401ee | 2944 | const IV iv = SvIV(sv); |
| a227d84d | 2945 | |
| 800401ee | 2946 | if (!SvOK(sv)) { |
| 922c4365 | 2947 | SETu(0); |
| 800401ee JH |
2948 | } |
| 2949 | else if (SvIOK(sv)) { | |
| 28e5dec8 | 2950 | /* IVX is precise */ |
| 800401ee JH |
2951 | if (SvIsUV(sv)) { |
| 2952 | SETu(SvUV(sv)); /* force it to be numeric only */ | |
| 28e5dec8 JH |
2953 | } else { |
| 2954 | if (iv >= 0) { | |
| 2955 | SETi(iv); | |
| 2956 | } else { | |
| 2957 | if (iv != IV_MIN) { | |
| 2958 | SETi(-iv); | |
| 2959 | } else { | |
| 2960 | /* 2s complement assumption. Also, not really needed as | |
| 2961 | IV_MIN and -IV_MIN should both be %100...00 and NV-able */ | |
| 2962 | SETu(IV_MIN); | |
| 2963 | } | |
| a227d84d | 2964 | } |
| 28e5dec8 JH |
2965 | } |
| 2966 | } else{ | |
| 800401ee | 2967 | const NV value = SvNV(sv); |
| 774d564b | 2968 | if (value < 0.0) |
| 1b6737cc | 2969 | SETn(-value); |
| a4474c9e DD |
2970 | else |
| 2971 | SETn(value); | |
| 774d564b | 2972 | } |
| a0d0e21e | 2973 | } |
| 774d564b | 2974 | RETURN; |
| 463ee0b2 LW |
2975 | } |
| 2976 | ||
| 79072805 LW |
2977 | PP(pp_oct) |
| 2978 | { | |
| 97aff369 | 2979 | dVAR; dSP; dTARGET; |
| 5c144d81 | 2980 | const char *tmps; |
| 53305cf1 | 2981 | I32 flags = PERL_SCAN_ALLOW_UNDERSCORES; |
| 6f894ead | 2982 | STRLEN len; |
| 53305cf1 NC |
2983 | NV result_nv; |
| 2984 | UV result_uv; | |
| 1b6737cc | 2985 | SV* const sv = POPs; |
| 79072805 | 2986 | |
| 349d4f2f | 2987 | tmps = (SvPV_const(sv, len)); |
| 2bc69dc4 NIS |
2988 | if (DO_UTF8(sv)) { |
| 2989 | /* If Unicode, try to downgrade | |
| 2990 | * If not possible, croak. */ | |
| 1b6737cc | 2991 | SV* const tsv = sv_2mortal(newSVsv(sv)); |
| 2bc69dc4 NIS |
2992 | |
| 2993 | SvUTF8_on(tsv); | |
| 2994 | sv_utf8_downgrade(tsv, FALSE); | |
| 349d4f2f | 2995 | tmps = SvPV_const(tsv, len); |
| 2bc69dc4 | 2996 | } |
| daa2adfd NC |
2997 | if (PL_op->op_type == OP_HEX) |
| 2998 | goto hex; | |
| 2999 | ||
| 6f894ead | 3000 | while (*tmps && len && isSPACE(*tmps)) |
| 53305cf1 | 3001 | tmps++, len--; |
| 9e24b6e2 | 3002 | if (*tmps == '0') |
| 53305cf1 | 3003 | tmps++, len--; |
| daa2adfd NC |
3004 | if (*tmps == 'x') { |
| 3005 | hex: | |
| 53305cf1 | 3006 | result_uv = grok_hex (tmps, &len, &flags, &result_nv); |
| daa2adfd | 3007 | } |
| 9e24b6e2 | 3008 | else if (*tmps == 'b') |
| 53305cf1 | 3009 | result_uv = grok_bin (tmps, &len, &flags, &result_nv); |
| 464e2e8a | 3010 | else |
| 53305cf1 NC |
3011 | result_uv = grok_oct (tmps, &len, &flags, &result_nv); |
| 3012 | ||
| 3013 | if (flags & PERL_SCAN_GREATER_THAN_UV_MAX) { | |
| 3014 | XPUSHn(result_nv); | |
| 3015 | } | |
| 3016 | else { | |
| 3017 | XPUSHu(result_uv); | |
| 3018 | } | |
| 79072805 LW |
3019 | RETURN; |
| 3020 | } | |
| 3021 | ||
| 3022 | /* String stuff. */ | |
| 3023 | ||
| 3024 | PP(pp_length) | |
| 3025 | { | |
| 97aff369 | 3026 | dVAR; dSP; dTARGET; |
| 0bd48802 | 3027 | SV * const sv = TOPs; |
| a0ed51b3 | 3028 | |
| 656266fc | 3029 | if (SvGAMAGIC(sv)) { |
| 9f621bb0 NC |
3030 | /* For an overloaded or magic scalar, we can't know in advance if |
| 3031 | it's going to be UTF-8 or not. Also, we can't call sv_len_utf8 as | |
| 3032 | it likes to cache the length. Maybe that should be a documented | |
| 3033 | feature of it. | |
| 92331800 NC |
3034 | */ |
| 3035 | STRLEN len; | |
| 9f621bb0 NC |
3036 | const char *const p |
| 3037 | = sv_2pv_flags(sv, &len, | |
| 3038 | SV_UNDEF_RETURNS_NULL|SV_CONST_RETURN|SV_GMAGIC); | |
| 92331800 | 3039 | |
| 9f621bb0 NC |
3040 | if (!p) |
| 3041 | SETs(&PL_sv_undef); | |
| 3042 | else if (DO_UTF8(sv)) { | |
| 899be101 | 3043 | SETi(utf8_length((U8*)p, (U8*)p + len)); |
| 92331800 NC |
3044 | } |
| 3045 | else | |
| 3046 | SETi(len); | |
| 656266fc | 3047 | } else if (SvOK(sv)) { |
| 9f621bb0 NC |
3048 | /* Neither magic nor overloaded. */ |
| 3049 | if (DO_UTF8(sv)) | |
| 3050 | SETi(sv_len_utf8(sv)); | |
| 3051 | else | |
| 3052 | SETi(sv_len(sv)); | |
| 656266fc NC |
3053 | } else { |
| 3054 | SETs(&PL_sv_undef); | |
| 92331800 | 3055 | } |
| 79072805 LW |
3056 | RETURN; |
| 3057 | } | |
| 3058 | ||
| 3059 | PP(pp_substr) | |
| 3060 | { | |
| 97aff369 | 3061 | dVAR; dSP; dTARGET; |
| 79072805 | 3062 | SV *sv; |
| 9c5ffd7c | 3063 | I32 len = 0; |
| 463ee0b2 | 3064 | STRLEN curlen; |
| 9402d6ed | 3065 | STRLEN utf8_curlen; |
| 79072805 LW |
3066 | I32 pos; |
| 3067 | I32 rem; | |
| 84902520 | 3068 | I32 fail; |
| 050e6362 | 3069 | const I32 lvalue = PL_op->op_flags & OPf_MOD || LVRET; |
| e1ec3a88 | 3070 | const char *tmps; |
| fc15ae8f | 3071 | const I32 arybase = CopARYBASE_get(PL_curcop); |
| 9402d6ed | 3072 | SV *repl_sv = NULL; |
| cbbf8932 | 3073 | const char *repl = NULL; |
| 7b8d334a | 3074 | STRLEN repl_len; |
| 050e6362 | 3075 | const int num_args = PL_op->op_private & 7; |
| 13e30c65 | 3076 | bool repl_need_utf8_upgrade = FALSE; |
| 9402d6ed | 3077 | bool repl_is_utf8 = FALSE; |
| 79072805 | 3078 | |
| 20408e3c | 3079 | SvTAINTED_off(TARG); /* decontaminate */ |
| 7e2040f0 | 3080 | SvUTF8_off(TARG); /* decontaminate */ |
| 78f9721b SM |
3081 | if (num_args > 2) { |
| 3082 | if (num_args > 3) { | |
| 9402d6ed | 3083 | repl_sv = POPs; |
| 83003860 | 3084 | repl = SvPV_const(repl_sv, repl_len); |
| 9402d6ed | 3085 | repl_is_utf8 = DO_UTF8(repl_sv) && SvCUR(repl_sv); |
| 7b8d334a | 3086 | } |
| 79072805 | 3087 | len = POPi; |
| 5d82c453 | 3088 | } |
| 84902520 | 3089 | pos = POPi; |
| 79072805 | 3090 | sv = POPs; |
| 849ca7ee | 3091 | PUTBACK; |
| 9402d6ed JH |
3092 | if (repl_sv) { |
| 3093 | if (repl_is_utf8) { | |
| 3094 | if (!DO_UTF8(sv)) | |
| 3095 | sv_utf8_upgrade(sv); | |
| 3096 | } | |
| 13e30c65 JH |
3097 | else if (DO_UTF8(sv)) |
| 3098 | repl_need_utf8_upgrade = TRUE; | |
| 9402d6ed | 3099 | } |
| 5c144d81 | 3100 | tmps = SvPV_const(sv, curlen); |
| 7e2040f0 | 3101 | if (DO_UTF8(sv)) { |
| 9402d6ed JH |
3102 | utf8_curlen = sv_len_utf8(sv); |
| 3103 | if (utf8_curlen == curlen) | |
| 3104 | utf8_curlen = 0; | |
| a0ed51b3 | 3105 | else |
| 9402d6ed | 3106 | curlen = utf8_curlen; |
| a0ed51b3 | 3107 | } |
| d1c2b58a | 3108 | else |
| 9402d6ed | 3109 | utf8_curlen = 0; |
| a0ed51b3 | 3110 | |
| 84902520 TB |
3111 | if (pos >= arybase) { |
| 3112 | pos -= arybase; | |
| 3113 | rem = curlen-pos; | |
| 3114 | fail = rem; | |
| 78f9721b | 3115 | if (num_args > 2) { |
| 5d82c453 GA |
3116 | if (len < 0) { |
| 3117 | rem += len; | |
| 3118 | if (rem < 0) | |
| 3119 | rem = 0; | |
| 3120 | } | |
| 3121 | else if (rem > len) | |
| 3122 | rem = len; | |
| 3123 | } | |
| 68dc0745 | 3124 | } |
| 84902520 | 3125 | else { |
| 5d82c453 | 3126 | pos += curlen; |
| 78f9721b | 3127 | if (num_args < 3) |
| 5d82c453 GA |
3128 | rem = curlen; |
| 3129 | else if (len >= 0) { | |
| 3130 | rem = pos+len; | |
| 3131 | if (rem > (I32)curlen) | |
| 3132 | rem = curlen; | |
| 3133 | } | |
| 3134 | else { | |
| 3135 | rem = curlen+len; | |
| 3136 | if (rem < pos) | |
| 3137 | rem = pos; | |
| 3138 | } | |
| 3139 | if (pos < 0) | |
| 3140 | pos = 0; | |
| 3141 | fail = rem; | |
| 3142 | rem -= pos; | |
| 84902520 TB |
3143 | } |
| 3144 | if (fail < 0) { | |
| e476b1b5 GS |
3145 | if (lvalue || repl) |
| 3146 | Perl_croak(aTHX_ "substr outside of string"); | |
| 3147 | if (ckWARN(WARN_SUBSTR)) | |
| 9014280d | 3148 | Perl_warner(aTHX_ packWARN(WARN_SUBSTR), "substr outside of string"); |
| 2304df62 AD |
3149 | RETPUSHUNDEF; |
| 3150 | } | |
| 79072805 | 3151 | else { |
| 1b6737cc AL |
3152 | const I32 upos = pos; |
| 3153 | const I32 urem = rem; | |
| 9402d6ed | 3154 | if (utf8_curlen) |
| a0ed51b3 | 3155 | sv_pos_u2b(sv, &pos, &rem); |
| 79072805 | 3156 | tmps += pos; |
| 781e7547 DM |
3157 | /* we either return a PV or an LV. If the TARG hasn't been used |
| 3158 | * before, or is of that type, reuse it; otherwise use a mortal | |
| 3159 | * instead. Note that LVs can have an extended lifetime, so also | |
| 3160 | * dont reuse if refcount > 1 (bug #20933) */ | |
| 3161 | if (SvTYPE(TARG) > SVt_NULL) { | |
| 3162 | if ( (SvTYPE(TARG) == SVt_PVLV) | |
| 3163 | ? (!lvalue || SvREFCNT(TARG) > 1) | |
| 3164 | : lvalue) | |
| 3165 | { | |
| 3166 | TARG = sv_newmortal(); | |
| 3167 | } | |
| 3168 | } | |
| 3169 | ||
| 050e6362 | 3170 | sv_setpvn(TARG, tmps, rem); |
| 12aa1545 | 3171 | #ifdef USE_LOCALE_COLLATE |
| 14befaf4 | 3172 | sv_unmagic(TARG, PERL_MAGIC_collxfrm); |
| 12aa1545 | 3173 | #endif |
| 9402d6ed | 3174 | if (utf8_curlen) |
| 7f66633b | 3175 | SvUTF8_on(TARG); |
| f7928d6c | 3176 | if (repl) { |
| 13e30c65 JH |
3177 | SV* repl_sv_copy = NULL; |
| 3178 | ||
| 3179 | if (repl_need_utf8_upgrade) { | |
| 3180 | repl_sv_copy = newSVsv(repl_sv); | |
| 3181 | sv_utf8_upgrade(repl_sv_copy); | |
| 349d4f2f | 3182 | repl = SvPV_const(repl_sv_copy, repl_len); |
| 13e30c65 JH |
3183 | repl_is_utf8 = DO_UTF8(repl_sv_copy) && SvCUR(sv); |
| 3184 | } | |
| 502d9230 VP |
3185 | if (!SvOK(sv)) |
| 3186 | sv_setpvs(sv, ""); | |
| c0dd94a0 | 3187 | sv_insert_flags(sv, pos, rem, repl, repl_len, 0); |
| 9402d6ed | 3188 | if (repl_is_utf8) |
| f7928d6c | 3189 | SvUTF8_on(sv); |
| 9402d6ed JH |
3190 | if (repl_sv_copy) |
| 3191 | SvREFCNT_dec(repl_sv_copy); | |
| f7928d6c | 3192 | } |
| c8faf1c5 | 3193 | else if (lvalue) { /* it's an lvalue! */ |
| dedeecda | 3194 | if (!SvGMAGICAL(sv)) { |
| 3195 | if (SvROK(sv)) { | |
| 13c5b33c | 3196 | SvPV_force_nolen(sv); |
| 599cee73 | 3197 | if (ckWARN(WARN_SUBSTR)) |
| 9014280d | 3198 | Perl_warner(aTHX_ packWARN(WARN_SUBSTR), |
| 599cee73 | 3199 | "Attempt to use reference as lvalue in substr"); |
| dedeecda | 3200 | } |
| f7877b28 NC |
3201 | if (isGV_with_GP(sv)) |
| 3202 | SvPV_force_nolen(sv); | |
| 3203 | else if (SvOK(sv)) /* is it defined ? */ | |
| 7f66633b | 3204 | (void)SvPOK_only_UTF8(sv); |
| dedeecda | 3205 | else |
| 523f125d | 3206 | sv_setpvs(sv, ""); /* avoid lexical reincarnation */ |
| dedeecda | 3207 | } |
| 5f05dabc | 3208 | |
| a0d0e21e LW |
3209 | if (SvTYPE(TARG) < SVt_PVLV) { |
| 3210 | sv_upgrade(TARG, SVt_PVLV); | |
| c445ea15 | 3211 | sv_magic(TARG, NULL, PERL_MAGIC_substr, NULL, 0); |
| ed6116ce | 3212 | } |
| a0d0e21e | 3213 | |
| 5f05dabc | 3214 | LvTYPE(TARG) = 'x'; |
| 6ff81951 GS |
3215 | if (LvTARG(TARG) != sv) { |
| 3216 | if (LvTARG(TARG)) | |
| 3217 | SvREFCNT_dec(LvTARG(TARG)); | |
| b37c2d43 | 3218 | LvTARG(TARG) = SvREFCNT_inc_simple(sv); |
| 6ff81951 | 3219 | } |
| 9aa983d2 JH |
3220 | LvTARGOFF(TARG) = upos; |
| 3221 | LvTARGLEN(TARG) = urem; | |
| 79072805 LW |
3222 | } |
| 3223 | } | |
| 849ca7ee | 3224 | SPAGAIN; |
| 79072805 LW |
3225 | PUSHs(TARG); /* avoid SvSETMAGIC here */ |
| 3226 | RETURN; | |
| 3227 | } | |
| 3228 | ||
| 3229 | PP(pp_vec) | |
| 3230 | { | |
| 97aff369 | 3231 | dVAR; dSP; dTARGET; |
| 1b6737cc AL |
3232 | register const IV size = POPi; |
| 3233 | register const IV offset = POPi; | |
| 3234 | register SV * const src = POPs; | |
| 3235 | const I32 lvalue = PL_op->op_flags & OPf_MOD || LVRET; | |
| a0d0e21e | 3236 | |
| 81e118e0 JH |
3237 | SvTAINTED_off(TARG); /* decontaminate */ |
| 3238 | if (lvalue) { /* it's an lvalue! */ | |
| 24aef97f HS |
3239 | if (SvREFCNT(TARG) > 1) /* don't share the TARG (#20933) */ |
| 3240 | TARG = sv_newmortal(); | |
| 81e118e0 JH |
3241 | if (SvTYPE(TARG) < SVt_PVLV) { |
| 3242 | sv_upgrade(TARG, SVt_PVLV); | |
| c445ea15 | 3243 | sv_magic(TARG, NULL, PERL_MAGIC_vec, NULL, 0); |
| 79072805 | 3244 | } |
| 81e118e0 JH |
3245 | LvTYPE(TARG) = 'v'; |
| 3246 | if (LvTARG(TARG) != src) { | |
| 3247 | if (LvTARG(TARG)) | |
| 3248 | SvREFCNT_dec(LvTARG(TARG)); | |
| b37c2d43 | 3249 | LvTARG(TARG) = SvREFCNT_inc_simple(src); |
| 79072805 | 3250 | } |
| 81e118e0 JH |
3251 | LvTARGOFF(TARG) = offset; |
| 3252 | LvTARGLEN(TARG) = size; | |
| 79072805 LW |
3253 | } |
| 3254 | ||
| 81e118e0 | 3255 | sv_setuv(TARG, do_vecget(src, offset, size)); |
| 79072805 LW |
3256 | PUSHs(TARG); |
| 3257 | RETURN; | |
| 3258 | } | |
| 3259 | ||
| 3260 | PP(pp_index) | |
| 3261 | { | |
| 97aff369 | 3262 | dVAR; dSP; dTARGET; |
| 79072805 LW |
3263 | SV *big; |
| 3264 | SV *little; | |
| c445ea15 | 3265 | SV *temp = NULL; |
| ad66a58c | 3266 | STRLEN biglen; |
| 2723d216 | 3267 | STRLEN llen = 0; |
| 79072805 LW |
3268 | I32 offset; |
| 3269 | I32 retval; | |
| 73ee8be2 NC |
3270 | const char *big_p; |
| 3271 | const char *little_p; | |
| fc15ae8f | 3272 | const I32 arybase = CopARYBASE_get(PL_curcop); |
| 2f040f7f NC |
3273 | bool big_utf8; |
| 3274 | bool little_utf8; | |
| 2723d216 | 3275 | const bool is_index = PL_op->op_type == OP_INDEX; |
| 79072805 | 3276 | |
| 2723d216 NC |
3277 | if (MAXARG >= 3) { |
| 3278 | /* arybase is in characters, like offset, so combine prior to the | |
| 3279 | UTF-8 to bytes calculation. */ | |
| 79072805 | 3280 | offset = POPi - arybase; |
| 2723d216 | 3281 | } |
| 79072805 LW |
3282 | little = POPs; |
| 3283 | big = POPs; | |
| 73ee8be2 NC |
3284 | big_p = SvPV_const(big, biglen); |
| 3285 | little_p = SvPV_const(little, llen); | |
| 3286 | ||
| e609e586 NC |
3287 | big_utf8 = DO_UTF8(big); |
| 3288 | little_utf8 = DO_UTF8(little); | |
| 3289 | if (big_utf8 ^ little_utf8) { | |
| 3290 | /* One needs to be upgraded. */ | |
| 2f040f7f NC |
3291 | if (little_utf8 && !PL_encoding) { |
| 3292 | /* Well, maybe instead we might be able to downgrade the small | |
| 3293 | string? */ | |
| 1eced8f8 | 3294 | char * const pv = (char*)bytes_from_utf8((U8 *)little_p, &llen, |
| 2f040f7f NC |
3295 | &little_utf8); |
| 3296 | if (little_utf8) { | |
| 3297 | /* If the large string is ISO-8859-1, and it's not possible to | |
| 3298 | convert the small string to ISO-8859-1, then there is no | |
| 3299 | way that it could be found anywhere by index. */ | |
| 3300 | retval = -1; | |
| 3301 | goto fail; | |
| 3302 | } | |
| e609e586 | 3303 | |
| 2f040f7f NC |
3304 | /* At this point, pv is a malloc()ed string. So donate it to temp |
| 3305 | to ensure it will get free()d */ | |
| 3306 | little = temp = newSV(0); | |
| 73ee8be2 NC |
3307 | sv_usepvn(temp, pv, llen); |
| 3308 | little_p = SvPVX(little); | |
| e609e586 | 3309 | } else { |
| 73ee8be2 NC |
3310 | temp = little_utf8 |
| 3311 | ? newSVpvn(big_p, biglen) : newSVpvn(little_p, llen); | |
| 2f040f7f NC |
3312 | |
| 3313 | if (PL_encoding) { | |
| 3314 | sv_recode_to_utf8(temp, PL_encoding); | |
| 3315 | } else { | |
| 3316 | sv_utf8_upgrade(temp); | |
| 3317 | } | |
| 3318 | if (little_utf8) { | |
| 3319 | big = temp; | |
| 3320 | big_utf8 = TRUE; | |
| 73ee8be2 | 3321 | big_p = SvPV_const(big, biglen); |
| 2f040f7f NC |
3322 | } else { |
| 3323 | little = temp; | |
| 73ee8be2 | 3324 | little_p = SvPV_const(little, llen); |
| 2f040f7f | 3325 | } |
| e609e586 NC |
3326 | } |
| 3327 | } | |
| 73ee8be2 NC |
3328 | if (SvGAMAGIC(big)) { |
| 3329 | /* Life just becomes a lot easier if I use a temporary here. | |
| 3330 | Otherwise I need to avoid calls to sv_pos_u2b(), which (dangerously) | |
| 3331 | will trigger magic and overloading again, as will fbm_instr() | |
| 3332 | */ | |
| 59cd0e26 NC |
3333 | big = newSVpvn_flags(big_p, biglen, |
| 3334 | SVs_TEMP | (big_utf8 ? SVf_UTF8 : 0)); | |
| 73ee8be2 NC |
3335 | big_p = SvPVX(big); |
| 3336 | } | |
| e4e44778 | 3337 | if (SvGAMAGIC(little) || (is_index && !SvOK(little))) { |
| 73ee8be2 NC |
3338 | /* index && SvOK() is a hack. fbm_instr() calls SvPV_const, which will |
| 3339 | warn on undef, and we've already triggered a warning with the | |
| 3340 | SvPV_const some lines above. We can't remove that, as we need to | |
| 3341 | call some SvPV to trigger overloading early and find out if the | |
| 3342 | string is UTF-8. | |
| 3343 | This is all getting to messy. The API isn't quite clean enough, | |
| 3344 | because data access has side effects. | |
| 3345 | */ | |
| 59cd0e26 NC |
3346 | little = newSVpvn_flags(little_p, llen, |
| 3347 | SVs_TEMP | (little_utf8 ? SVf_UTF8 : 0)); | |
| 73ee8be2 NC |
3348 | little_p = SvPVX(little); |
| 3349 | } | |
| e609e586 | 3350 | |
| 79072805 | 3351 | if (MAXARG < 3) |
| 2723d216 | 3352 | offset = is_index ? 0 : biglen; |
| a0ed51b3 | 3353 | else { |
| ad66a58c | 3354 | if (big_utf8 && offset > 0) |
| a0ed51b3 | 3355 | sv_pos_u2b(big, &offset, 0); |
| 73ee8be2 NC |
3356 | if (!is_index) |
| 3357 | offset += llen; | |
| a0ed51b3 | 3358 | } |
| 79072805 LW |
3359 | if (offset < 0) |
| 3360 | offset = 0; | |
| ad66a58c NC |
3361 | else if (offset > (I32)biglen) |
| 3362 | offset = biglen; | |
| 73ee8be2 NC |
3363 | if (!(little_p = is_index |
| 3364 | ? fbm_instr((unsigned char*)big_p + offset, | |
| 3365 | (unsigned char*)big_p + biglen, little, 0) | |
| 3366 | : rninstr(big_p, big_p + offset, | |
| 3367 | little_p, little_p + llen))) | |
| a0ed51b3 | 3368 | retval = -1; |
| ad66a58c | 3369 | else { |
| 73ee8be2 | 3370 | retval = little_p - big_p; |
| ad66a58c NC |
3371 | if (retval > 0 && big_utf8) |
| 3372 | sv_pos_b2u(big, &retval); | |
| 3373 | } | |
| e609e586 NC |
3374 | if (temp) |
| 3375 | SvREFCNT_dec(temp); | |
| 2723d216 | 3376 | fail: |
| a0ed51b3 | 3377 | PUSHi(retval + arybase); |
| 79072805 LW |
3378 | RETURN; |
| 3379 | } | |
| 3380 | ||
| 3381 | PP(pp_sprintf) | |
| 3382 | { | |
| 97aff369 | 3383 | dVAR; dSP; dMARK; dORIGMARK; dTARGET; |
| 20ee07fb RGS |
3384 | if (SvTAINTED(MARK[1])) |
| 3385 | TAINT_PROPER("sprintf"); | |
| 79072805 | 3386 | do_sprintf(TARG, SP-MARK, MARK+1); |
| bbce6d69 | 3387 | TAINT_IF(SvTAINTED(TARG)); |
| 79072805 LW |
3388 | SP = ORIGMARK; |
| 3389 | PUSHTARG; | |
| 3390 | RETURN; | |
| 3391 | } | |
| 3392 | ||
| 79072805 LW |
3393 | PP(pp_ord) |
| 3394 | { | |
| 97aff369 | 3395 | dVAR; dSP; dTARGET; |
| 1eced8f8 | 3396 | |
| 7df053ec | 3397 | SV *argsv = POPs; |
| ba210ebe | 3398 | STRLEN len; |
| 349d4f2f | 3399 | const U8 *s = (U8*)SvPV_const(argsv, len); |
| 121910a4 | 3400 | |
| 799ef3cb | 3401 | if (PL_encoding && SvPOK(argsv) && !DO_UTF8(argsv)) { |
| 1eced8f8 | 3402 | SV * const tmpsv = sv_2mortal(newSVsv(argsv)); |
| 799ef3cb | 3403 | s = (U8*)sv_recode_to_utf8(tmpsv, PL_encoding); |
| 121910a4 JH |
3404 | argsv = tmpsv; |
| 3405 | } | |
| 79072805 | 3406 | |
| 872c91ae | 3407 | XPUSHu(DO_UTF8(argsv) ? |
| 89ebb4a3 | 3408 | utf8n_to_uvchr(s, UTF8_MAXBYTES, 0, UTF8_ALLOW_ANYUV) : |
| 5fc32dea | 3409 | (UV)(*s & 0xff)); |
| 68795e93 | 3410 | |
| 79072805 LW |
3411 | RETURN; |
| 3412 | } | |
| 3413 | ||
| 463ee0b2 LW |
3414 | PP(pp_chr) |
| 3415 | { | |
| 97aff369 | 3416 | dVAR; dSP; dTARGET; |
| 463ee0b2 | 3417 | char *tmps; |
| 8a064bd6 JH |
3418 | UV value; |
| 3419 | ||
| 3420 | if (((SvIOK_notUV(TOPs) && SvIV(TOPs) < 0) | |
| 3421 | || | |
| 3422 | (SvNOK(TOPs) && SvNV(TOPs) < 0.0))) { | |
| 3423 | if (IN_BYTES) { | |
| 3424 | value = POPu; /* chr(-1) eq chr(0xff), etc. */ | |
| 3425 | } else { | |
| 3426 | (void) POPs; /* Ignore the argument value. */ | |
| 3427 | value = UNICODE_REPLACEMENT; | |
| 3428 | } | |
| 3429 | } else { | |
| 3430 | value = POPu; | |
| 3431 | } | |
| 463ee0b2 | 3432 | |
| 862a34c6 | 3433 | SvUPGRADE(TARG,SVt_PV); |
| a0ed51b3 | 3434 | |
| 0064a8a9 | 3435 | if (value > 255 && !IN_BYTES) { |
| eb160463 | 3436 | SvGROW(TARG, (STRLEN)UNISKIP(value)+1); |
| 62961d2e | 3437 | tmps = (char*)uvchr_to_utf8_flags((U8*)SvPVX(TARG), value, 0); |
| 349d4f2f | 3438 | SvCUR_set(TARG, tmps - SvPVX_const(TARG)); |
| a0ed51b3 LW |
3439 | *tmps = '\0'; |
| 3440 | (void)SvPOK_only(TARG); | |
| aa6ffa16 | 3441 | SvUTF8_on(TARG); |
| a0ed51b3 LW |
3442 | XPUSHs(TARG); |
| 3443 | RETURN; | |
| 3444 | } | |
| 3445 | ||
| 748a9306 | 3446 | SvGROW(TARG,2); |
| 463ee0b2 LW |
3447 | SvCUR_set(TARG, 1); |
| 3448 | tmps = SvPVX(TARG); | |
| eb160463 | 3449 | *tmps++ = (char)value; |
| 748a9306 | 3450 | *tmps = '\0'; |
| a0d0e21e | 3451 | (void)SvPOK_only(TARG); |
| 4c5ed6e2 | 3452 | |
| 88632417 | 3453 | if (PL_encoding && !IN_BYTES) { |
| 799ef3cb | 3454 | sv_recode_to_utf8(TARG, PL_encoding); |
| 88632417 JH |
3455 | tmps = SvPVX(TARG); |
| 3456 | if (SvCUR(TARG) == 0 || !is_utf8_string((U8*)tmps, SvCUR(TARG)) || | |
| 4c5ed6e2 TS |
3457 | UNICODE_IS_REPLACEMENT(utf8_to_uvchr((U8*)tmps, NULL))) { |
| 3458 | SvGROW(TARG, 2); | |
| d5a15ac2 | 3459 | tmps = SvPVX(TARG); |
| 4c5ed6e2 TS |
3460 | SvCUR_set(TARG, 1); |
| 3461 | *tmps++ = (char)value; | |
| 88632417 | 3462 | *tmps = '\0'; |
| 4c5ed6e2 | 3463 | SvUTF8_off(TARG); |
| 88632417 JH |
3464 | } |
| 3465 | } | |
| 4c5ed6e2 | 3466 | |
| 463ee0b2 LW |
3467 | XPUSHs(TARG); |
| 3468 | RETURN; | |
| 3469 | } | |
| 3470 | ||
| 79072805 LW |
3471 | PP(pp_crypt) |
| 3472 | { | |
| 79072805 | 3473 | #ifdef HAS_CRYPT |
| 97aff369 | 3474 | dVAR; dSP; dTARGET; |
| 5f74f29c | 3475 | dPOPTOPssrl; |
| 85c16d83 | 3476 | STRLEN len; |
| 10516c54 | 3477 | const char *tmps = SvPV_const(left, len); |
| 2bc69dc4 | 3478 | |
| 85c16d83 | 3479 | if (DO_UTF8(left)) { |
| 2bc69dc4 | 3480 | /* If Unicode, try to downgrade. |
| f2791508 JH |
3481 | * If not possible, croak. |
| 3482 | * Yes, we made this up. */ | |
| 1b6737cc | 3483 | SV* const tsv = sv_2mortal(newSVsv(left)); |
| 2bc69dc4 | 3484 | |
| f2791508 | 3485 | SvUTF8_on(tsv); |
| 2bc69dc4 | 3486 | sv_utf8_downgrade(tsv, FALSE); |
| 349d4f2f | 3487 | tmps = SvPV_const(tsv, len); |
| 85c16d83 | 3488 | } |
| 05404ffe JH |
3489 | # ifdef USE_ITHREADS |
| 3490 | # ifdef HAS_CRYPT_R | |
| 3491 | if (!PL_reentrant_buffer->_crypt_struct_buffer) { | |
| 3492 | /* This should be threadsafe because in ithreads there is only | |
| 3493 | * one thread per interpreter. If this would not be true, | |
| 3494 | * we would need a mutex to protect this malloc. */ | |
| 3495 | PL_reentrant_buffer->_crypt_struct_buffer = | |
| 3496 | (struct crypt_data *)safemalloc(sizeof(struct crypt_data)); | |
| 3497 | #if defined(__GLIBC__) || defined(__EMX__) | |
| 3498 | if (PL_reentrant_buffer->_crypt_struct_buffer) { | |
| 3499 | PL_reentrant_buffer->_crypt_struct_buffer->initialized = 0; | |
| 3500 | /* work around glibc-2.2.5 bug */ | |
| 3501 | PL_reentrant_buffer->_crypt_struct_buffer->current_saltbits = 0; | |
| 3502 | } | |
| 05404ffe | 3503 | #endif |
| 6ab58e4d | 3504 | } |
| 05404ffe JH |
3505 | # endif /* HAS_CRYPT_R */ |
| 3506 | # endif /* USE_ITHREADS */ | |
| 5f74f29c | 3507 | # ifdef FCRYPT |
| 83003860 | 3508 | sv_setpv(TARG, fcrypt(tmps, SvPV_nolen_const(right))); |
| 5f74f29c | 3509 | # else |
| 83003860 | 3510 | sv_setpv(TARG, PerlProc_crypt(tmps, SvPV_nolen_const(right))); |
| 5f74f29c | 3511 | # endif |
| 4808266b JH |
3512 | SETs(TARG); |
| 3513 | RETURN; | |
| 79072805 | 3514 | #else |
| b13b2135 | 3515 | DIE(aTHX_ |
| 79072805 LW |
3516 | "The crypt() function is unimplemented due to excessive paranoia."); |
| 3517 | #endif | |
| 79072805 LW |
3518 | } |
| 3519 | ||
| 3520 | PP(pp_ucfirst) | |
| 3521 | { | |
| 97aff369 | 3522 | dVAR; |
| 39644a26 | 3523 | dSP; |
| d54190f6 | 3524 | SV *source = TOPs; |
| a0ed51b3 | 3525 | STRLEN slen; |
| d54190f6 NC |
3526 | STRLEN need; |
| 3527 | SV *dest; | |
| 3528 | bool inplace = TRUE; | |
| 3529 | bool doing_utf8; | |
| 12e9c124 | 3530 | const int op_type = PL_op->op_type; |
| d54190f6 NC |
3531 | const U8 *s; |
| 3532 | U8 *d; | |
| 3533 | U8 tmpbuf[UTF8_MAXBYTES_CASE+1]; | |
| 3534 | STRLEN ulen; | |
| 3535 | STRLEN tculen; | |
| 3536 | ||
| 3537 | SvGETMAGIC(source); | |
| 3538 | if (SvOK(source)) { | |
| 3539 | s = (const U8*)SvPV_nomg_const(source, slen); | |
| 3540 | } else { | |
| 0a0ffbce RGS |
3541 | if (ckWARN(WARN_UNINITIALIZED)) |
| 3542 | report_uninit(source); | |
| 1eced8f8 | 3543 | s = (const U8*)""; |
| d54190f6 NC |
3544 | slen = 0; |
| 3545 | } | |
| a0ed51b3 | 3546 | |
| d54190f6 NC |
3547 | if (slen && DO_UTF8(source) && UTF8_IS_START(*s)) { |
| 3548 | doing_utf8 = TRUE; | |
| 44bc797b | 3549 | utf8_to_uvchr(s, &ulen); |
| 12e9c124 NC |
3550 | if (op_type == OP_UCFIRST) { |
| 3551 | toTITLE_utf8(s, tmpbuf, &tculen); | |
| 3552 | } else { | |
| 3553 | toLOWER_utf8(s, tmpbuf, &tculen); | |
| 3554 | } | |
| d54190f6 | 3555 | /* If the two differ, we definately cannot do inplace. */ |
| 1eced8f8 | 3556 | inplace = (ulen == tculen); |
| d54190f6 NC |
3557 | need = slen + 1 - ulen + tculen; |
| 3558 | } else { | |
| 3559 | doing_utf8 = FALSE; | |
| 3560 | need = slen + 1; | |
| 3561 | } | |
| 3562 | ||
| 17fa0776 | 3563 | if (SvPADTMP(source) && !SvREADONLY(source) && inplace && SvTEMP(source)) { |
| d54190f6 NC |
3564 | /* We can convert in place. */ |
| 3565 | ||
| 3566 | dest = source; | |
| 3567 | s = d = (U8*)SvPV_force_nomg(source, slen); | |
| 3568 | } else { | |
| 3569 | dTARGET; | |
| 3570 | ||
| 3571 | dest = TARG; | |
| 3572 | ||
| 3573 | SvUPGRADE(dest, SVt_PV); | |
| 3b416f41 | 3574 | d = (U8*)SvGROW(dest, need); |
| d54190f6 NC |
3575 | (void)SvPOK_only(dest); |
| 3576 | ||
| 3577 | SETs(dest); | |
| 3578 | ||
| 3579 | inplace = FALSE; | |
| 3580 | } | |
| 44bc797b | 3581 | |
| d54190f6 NC |
3582 | if (doing_utf8) { |
| 3583 | if(!inplace) { | |
| 3a2263fe RGS |
3584 | /* slen is the byte length of the whole SV. |
| 3585 | * ulen is the byte length of the original Unicode character | |
| 3586 | * stored as UTF-8 at s. | |
| 12e9c124 NC |
3587 | * tculen is the byte length of the freshly titlecased (or |
| 3588 | * lowercased) Unicode character stored as UTF-8 at tmpbuf. | |
| 3589 | * We first set the result to be the titlecased (/lowercased) | |
| 3590 | * character, and then append the rest of the SV data. */ | |
| d54190f6 | 3591 | sv_setpvn(dest, (char*)tmpbuf, tculen); |
| 3a2263fe | 3592 | if (slen > ulen) |
| d54190f6 NC |
3593 | sv_catpvn(dest, (char*)(s + ulen), slen - ulen); |
| 3594 | SvUTF8_on(dest); | |
| a0ed51b3 LW |
3595 | } |
| 3596 | else { | |
| d54190f6 NC |
3597 | Copy(tmpbuf, d, tculen, U8); |
| 3598 | SvCUR_set(dest, need - 1); | |
| a0ed51b3 | 3599 | } |
| a0ed51b3 | 3600 | } |
| 626727d5 | 3601 | else { |
| d54190f6 | 3602 | if (*s) { |
| 2de3dbcc | 3603 | if (IN_LOCALE_RUNTIME) { |
| 31351b04 | 3604 | TAINT; |
| d54190f6 NC |
3605 | SvTAINTED_on(dest); |
| 3606 | *d = (op_type == OP_UCFIRST) | |
| 3607 | ? toUPPER_LC(*s) : toLOWER_LC(*s); | |
| 31351b04 JS |
3608 | } |
| 3609 | else | |
| d54190f6 NC |
3610 | *d = (op_type == OP_UCFIRST) ? toUPPER(*s) : toLOWER(*s); |
| 3611 | } else { | |
| 3612 | /* See bug #39028 */ | |
| 3613 | *d = *s; | |
| 3614 | } | |
| 3615 | ||
| 3616 | if (SvUTF8(source)) | |
| 3617 | SvUTF8_on(dest); | |
| 3618 | ||
| 3619 | if (!inplace) { | |
| 3620 | /* This will copy the trailing NUL */ | |
| 3621 | Copy(s + 1, d + 1, slen, U8); | |
| 3622 | SvCUR_set(dest, need - 1); | |
| bbce6d69 | 3623 | } |
| bbce6d69 | 3624 | } |
| d54190f6 | 3625 | SvSETMAGIC(dest); |
| 79072805 LW |
3626 | RETURN; |
| 3627 | } | |
| 3628 | ||
| 67306194 NC |
3629 | /* There's so much setup/teardown code common between uc and lc, I wonder if |
| 3630 | it would be worth merging the two, and just having a switch outside each | |
| 3631 | of the three tight loops. */ | |
| 79072805 LW |
3632 | PP(pp_uc) |
| 36 |