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| Commit | Line | Data |
|---|---|---|
| a0d0e21e | 1 | /* pp.c |
| 79072805 | 2 | * |
| 1129b882 NC |
3 | * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, |
| 4 | * 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 by Larry Wall and others | |
| 79072805 | 5 | * |
| a0d0e21e LW |
6 | * You may distribute under the terms of either the GNU General Public |
| 7 | * License or the Artistic License, as specified in the README file. | |
| 79072805 | 8 | * |
| a0d0e21e LW |
9 | */ |
| 10 | ||
| 11 | /* | |
| 4ac71550 TC |
12 | * 'It's a big house this, and very peculiar. Always a bit more |
| 13 | * to discover, and no knowing what you'll find round a corner. | |
| 14 | * And Elves, sir!' --Samwise Gamgee | |
| 15 | * | |
| 16 | * [p.225 of _The Lord of the Rings_, II/i: "Many Meetings"] | |
| a0d0e21e | 17 | */ |
| 79072805 | 18 | |
| 166f8a29 DM |
19 | /* This file contains general pp ("push/pop") functions that execute the |
| 20 | * opcodes that make up a perl program. A typical pp function expects to | |
| 21 | * find its arguments on the stack, and usually pushes its results onto | |
| 22 | * the stack, hence the 'pp' terminology. Each OP structure contains | |
| 23 | * a pointer to the relevant pp_foo() function. | |
| 24 | */ | |
| 25 | ||
| 79072805 | 26 | #include "EXTERN.h" |
| 864dbfa3 | 27 | #define PERL_IN_PP_C |
| 79072805 | 28 | #include "perl.h" |
| 77bc9082 | 29 | #include "keywords.h" |
| 79072805 | 30 | |
| a4af207c JH |
31 | #include "reentr.h" |
| 32 | ||
| dfe9444c AD |
33 | /* XXX I can't imagine anyone who doesn't have this actually _needs_ |
| 34 | it, since pid_t is an integral type. | |
| 35 | --AD 2/20/1998 | |
| 36 | */ | |
| 37 | #ifdef NEED_GETPID_PROTO | |
| 38 | extern Pid_t getpid (void); | |
| 8ac85365 NIS |
39 | #endif |
| 40 | ||
| 0630166f SP |
41 | /* |
| 42 | * Some BSDs and Cygwin default to POSIX math instead of IEEE. | |
| 43 | * This switches them over to IEEE. | |
| 44 | */ | |
| 45 | #if defined(LIBM_LIB_VERSION) | |
| 46 | _LIB_VERSION_TYPE _LIB_VERSION = _IEEE_; | |
| 47 | #endif | |
| 48 | ||
| 13017935 SM |
49 | /* variations on pp_null */ |
| 50 | ||
| 93a17b20 LW |
51 | PP(pp_stub) |
| 52 | { | |
| 97aff369 | 53 | dVAR; |
| 39644a26 | 54 | dSP; |
| 54310121 | 55 | if (GIMME_V == G_SCALAR) |
| 3280af22 | 56 | XPUSHs(&PL_sv_undef); |
| 93a17b20 LW |
57 | RETURN; |
| 58 | } | |
| 59 | ||
| 79072805 LW |
60 | /* Pushy stuff. */ |
| 61 | ||
| 93a17b20 LW |
62 | PP(pp_padav) |
| 63 | { | |
| 97aff369 | 64 | dVAR; dSP; dTARGET; |
| 13017935 | 65 | I32 gimme; |
| e190e9b4 | 66 | assert(SvTYPE(TARG) == SVt_PVAV); |
| 533c011a | 67 | if (PL_op->op_private & OPpLVAL_INTRO) |
| a5911867 RGS |
68 | if (!(PL_op->op_private & OPpPAD_STATE)) |
| 69 | SAVECLEARSV(PAD_SVl(PL_op->op_targ)); | |
| 85e6fe83 | 70 | EXTEND(SP, 1); |
| 533c011a | 71 | if (PL_op->op_flags & OPf_REF) { |
| 85e6fe83 | 72 | PUSHs(TARG); |
| 93a17b20 | 73 | RETURN; |
| 40c94d11 FC |
74 | } else if (PL_op->op_private & OPpMAYBE_LVSUB) { |
| 75 | const I32 flags = is_lvalue_sub(); | |
| 76 | if (flags && !(flags & OPpENTERSUB_INARGS)) { | |
| 78f9721b SM |
77 | if (GIMME == G_SCALAR) |
| 78 | Perl_croak(aTHX_ "Can't return array to lvalue scalar context"); | |
| 79 | PUSHs(TARG); | |
| 80 | RETURN; | |
| 40c94d11 | 81 | } |
| 85e6fe83 | 82 | } |
| 13017935 SM |
83 | gimme = GIMME_V; |
| 84 | if (gimme == G_ARRAY) { | |
| 502c6561 | 85 | const I32 maxarg = AvFILL(MUTABLE_AV(TARG)) + 1; |
| 85e6fe83 | 86 | EXTEND(SP, maxarg); |
| 93965878 NIS |
87 | if (SvMAGICAL(TARG)) { |
| 88 | U32 i; | |
| eb160463 | 89 | for (i=0; i < (U32)maxarg; i++) { |
| 502c6561 | 90 | SV * const * const svp = av_fetch(MUTABLE_AV(TARG), i, FALSE); |
| 3280af22 | 91 | SP[i+1] = (svp) ? *svp : &PL_sv_undef; |
| 93965878 NIS |
92 | } |
| 93 | } | |
| 94 | else { | |
| 502c6561 | 95 | Copy(AvARRAY((const AV *)TARG), SP+1, maxarg, SV*); |
| 93965878 | 96 | } |
| 85e6fe83 LW |
97 | SP += maxarg; |
| 98 | } | |
| 13017935 | 99 | else if (gimme == G_SCALAR) { |
| 1b6737cc | 100 | SV* const sv = sv_newmortal(); |
| 502c6561 | 101 | const I32 maxarg = AvFILL(MUTABLE_AV(TARG)) + 1; |
| 85e6fe83 LW |
102 | sv_setiv(sv, maxarg); |
| 103 | PUSHs(sv); | |
| 104 | } | |
| 105 | RETURN; | |
| 93a17b20 LW |
106 | } |
| 107 | ||
| 108 | PP(pp_padhv) | |
| 109 | { | |
| 97aff369 | 110 | dVAR; dSP; dTARGET; |
| 54310121 | 111 | I32 gimme; |
| 112 | ||
| e190e9b4 | 113 | assert(SvTYPE(TARG) == SVt_PVHV); |
| 93a17b20 | 114 | XPUSHs(TARG); |
| 533c011a | 115 | if (PL_op->op_private & OPpLVAL_INTRO) |
| a5911867 RGS |
116 | if (!(PL_op->op_private & OPpPAD_STATE)) |
| 117 | SAVECLEARSV(PAD_SVl(PL_op->op_targ)); | |
| 533c011a | 118 | if (PL_op->op_flags & OPf_REF) |
| 93a17b20 | 119 | RETURN; |
| 40c94d11 FC |
120 | else if (PL_op->op_private & OPpMAYBE_LVSUB) { |
| 121 | const I32 flags = is_lvalue_sub(); | |
| 122 | if (flags && !(flags & OPpENTERSUB_INARGS)) { | |
| 78f9721b SM |
123 | if (GIMME == G_SCALAR) |
| 124 | Perl_croak(aTHX_ "Can't return hash to lvalue scalar context"); | |
| 125 | RETURN; | |
| 40c94d11 | 126 | } |
| 78f9721b | 127 | } |
| 54310121 | 128 | gimme = GIMME_V; |
| 129 | if (gimme == G_ARRAY) { | |
| 981b7185 | 130 | RETURNOP(Perl_do_kv(aTHX)); |
| 85e6fe83 | 131 | } |
| 54310121 | 132 | else if (gimme == G_SCALAR) { |
| 85fbaab2 | 133 | SV* const sv = Perl_hv_scalar(aTHX_ MUTABLE_HV(TARG)); |
| 85e6fe83 | 134 | SETs(sv); |
| 85e6fe83 | 135 | } |
| 54310121 | 136 | RETURN; |
| 93a17b20 LW |
137 | } |
| 138 | ||
| 79072805 LW |
139 | /* Translations. */ |
| 140 | ||
| 4bdf8368 | 141 | static const char S_no_symref_sv[] = |
| def89bff NC |
142 | "Can't use string (\"%" SVf32 "\"%s) as %s ref while \"strict refs\" in use"; |
| 143 | ||
| 79072805 LW |
144 | PP(pp_rv2gv) |
| 145 | { | |
| 97aff369 | 146 | dVAR; dSP; dTOPss; |
| 8ec5e241 | 147 | |
| f64c9ac5 | 148 | if (!isGV(sv) || SvFAKE(sv)) SvGETMAGIC(sv); |
| ed6116ce | 149 | if (SvROK(sv)) { |
| a0d0e21e | 150 | wasref: |
| 93d7320b DM |
151 | if (SvAMAGIC(sv)) { |
| 152 | sv = amagic_deref_call(sv, to_gv_amg); | |
| 153 | SPAGAIN; | |
| 154 | } | |
| ed6116ce | 155 | sv = SvRV(sv); |
| b1dadf13 | 156 | if (SvTYPE(sv) == SVt_PVIO) { |
| 159b6efe | 157 | GV * const gv = MUTABLE_GV(sv_newmortal()); |
| b1dadf13 | 158 | gv_init(gv, 0, "", 0, 0); |
| a45c7426 | 159 | GvIOp(gv) = MUTABLE_IO(sv); |
| b37c2d43 | 160 | SvREFCNT_inc_void_NN(sv); |
| ad64d0ec | 161 | sv = MUTABLE_SV(gv); |
| ef54e1a4 | 162 | } |
| 6e592b3a | 163 | else if (!isGV_with_GP(sv)) |
| cea2e8a9 | 164 | DIE(aTHX_ "Not a GLOB reference"); |
| 79072805 LW |
165 | } |
| 166 | else { | |
| 6e592b3a | 167 | if (!isGV_with_GP(sv)) { |
| afd1915d | 168 | if (!SvOK(sv) && sv != &PL_sv_undef) { |
| b13b2135 | 169 | /* If this is a 'my' scalar and flag is set then vivify |
| 853846ea | 170 | * NI-S 1999/05/07 |
| b13b2135 | 171 | */ |
| ac53db4c | 172 | if (SvREADONLY(sv)) |
| 6ad8f254 | 173 | Perl_croak_no_modify(aTHX); |
| 1d8d4d2a | 174 | if (PL_op->op_private & OPpDEREF) { |
| 2c8ac474 GS |
175 | GV *gv; |
| 176 | if (cUNOP->op_targ) { | |
| 177 | STRLEN len; | |
| 0bd48802 AL |
178 | SV * const namesv = PAD_SV(cUNOP->op_targ); |
| 179 | const char * const name = SvPV(namesv, len); | |
| 159b6efe | 180 | gv = MUTABLE_GV(newSV(0)); |
| 2c8ac474 GS |
181 | gv_init(gv, CopSTASH(PL_curcop), name, len, 0); |
| 182 | } | |
| 183 | else { | |
| 0bd48802 | 184 | const char * const name = CopSTASHPV(PL_curcop); |
| 2c8ac474 | 185 | gv = newGVgen(name); |
| 1d8d4d2a | 186 | } |
| 43230e26 | 187 | prepare_SV_for_RV(sv); |
| ad64d0ec | 188 | SvRV_set(sv, MUTABLE_SV(gv)); |
| 853846ea | 189 | SvROK_on(sv); |
| 1d8d4d2a | 190 | SvSETMAGIC(sv); |
| 853846ea | 191 | goto wasref; |
| 2c8ac474 | 192 | } |
| 533c011a NIS |
193 | if (PL_op->op_flags & OPf_REF || |
| 194 | PL_op->op_private & HINT_STRICT_REFS) | |
| cea2e8a9 | 195 | DIE(aTHX_ PL_no_usym, "a symbol"); |
| 599cee73 | 196 | if (ckWARN(WARN_UNINITIALIZED)) |
| 29489e7c | 197 | report_uninit(sv); |
| a0d0e21e LW |
198 | RETSETUNDEF; |
| 199 | } | |
| 35cd451c GS |
200 | if ((PL_op->op_flags & OPf_SPECIAL) && |
| 201 | !(PL_op->op_flags & OPf_MOD)) | |
| 202 | { | |
| ad64d0ec | 203 | SV * const temp = MUTABLE_SV(gv_fetchsv(sv, 0, SVt_PVGV)); |
| 7a5fd60d NC |
204 | if (!temp |
| 205 | && (!is_gv_magical_sv(sv,0) | |
| ad64d0ec NC |
206 | || !(sv = MUTABLE_SV(gv_fetchsv(sv, GV_ADD, |
| 207 | SVt_PVGV))))) { | |
| 35cd451c | 208 | RETSETUNDEF; |
| c9d5ac95 | 209 | } |
| 7a5fd60d | 210 | sv = temp; |
| 35cd451c GS |
211 | } |
| 212 | else { | |
| 213 | if (PL_op->op_private & HINT_STRICT_REFS) | |
| 10b53e54 | 214 | DIE(aTHX_ S_no_symref_sv, sv, (SvPOK(sv) && SvCUR(sv)>32 ? "..." : ""), "a symbol"); |
| e26df76a NC |
215 | if ((PL_op->op_private & (OPpLVAL_INTRO|OPpDONT_INIT_GV)) |
| 216 | == OPpDONT_INIT_GV) { | |
| 217 | /* We are the target of a coderef assignment. Return | |
| 218 | the scalar unchanged, and let pp_sasssign deal with | |
| 219 | things. */ | |
| 220 | RETURN; | |
| 221 | } | |
| ad64d0ec | 222 | sv = MUTABLE_SV(gv_fetchsv(sv, GV_ADD, SVt_PVGV)); |
| 35cd451c | 223 | } |
| 2acc3314 FC |
224 | /* FAKE globs in the symbol table cause weird bugs (#77810) */ |
| 225 | if (sv) SvFAKE_off(sv); | |
| 93a17b20 | 226 | } |
| 79072805 | 227 | } |
| 2acc3314 FC |
228 | if (sv && SvFAKE(sv)) { |
| 229 | SV *newsv = sv_newmortal(); | |
| 5cf4b255 | 230 | sv_setsv_flags(newsv, sv, 0); |
| 2acc3314 | 231 | SvFAKE_off(newsv); |
| d8906c05 | 232 | sv = newsv; |
| 2acc3314 | 233 | } |
| d8906c05 FC |
234 | if (PL_op->op_private & OPpLVAL_INTRO) |
| 235 | save_gp(MUTABLE_GV(sv), !(PL_op->op_flags & OPf_SPECIAL)); | |
| 236 | SETs(sv); | |
| 79072805 LW |
237 | RETURN; |
| 238 | } | |
| 239 | ||
| dc3c76f8 NC |
240 | /* Helper function for pp_rv2sv and pp_rv2av */ |
| 241 | GV * | |
| fe9845cc RB |
242 | Perl_softref2xv(pTHX_ SV *const sv, const char *const what, |
| 243 | const svtype type, SV ***spp) | |
| dc3c76f8 NC |
244 | { |
| 245 | dVAR; | |
| 246 | GV *gv; | |
| 247 | ||
| 7918f24d NC |
248 | PERL_ARGS_ASSERT_SOFTREF2XV; |
| 249 | ||
| dc3c76f8 NC |
250 | if (PL_op->op_private & HINT_STRICT_REFS) { |
| 251 | if (SvOK(sv)) | |
| 10b53e54 | 252 | Perl_die(aTHX_ S_no_symref_sv, sv, (SvPOK(sv) && SvCUR(sv)>32 ? "..." : ""), what); |
| dc3c76f8 NC |
253 | else |
| 254 | Perl_die(aTHX_ PL_no_usym, what); | |
| 255 | } | |
| 256 | if (!SvOK(sv)) { | |
| fd1d9b5c FC |
257 | if ( |
| 258 | PL_op->op_flags & OPf_REF && | |
| 259 | PL_op->op_next->op_type != OP_BOOLKEYS | |
| 260 | ) | |
| dc3c76f8 NC |
261 | Perl_die(aTHX_ PL_no_usym, what); |
| 262 | if (ckWARN(WARN_UNINITIALIZED)) | |
| 263 | report_uninit(sv); | |
| 264 | if (type != SVt_PV && GIMME_V == G_ARRAY) { | |
| 265 | (*spp)--; | |
| 266 | return NULL; | |
| 267 | } | |
| 268 | **spp = &PL_sv_undef; | |
| 269 | return NULL; | |
| 270 | } | |
| 271 | if ((PL_op->op_flags & OPf_SPECIAL) && | |
| 272 | !(PL_op->op_flags & OPf_MOD)) | |
| 273 | { | |
| 81e3fc25 | 274 | gv = gv_fetchsv(sv, 0, type); |
| dc3c76f8 NC |
275 | if (!gv |
| 276 | && (!is_gv_magical_sv(sv,0) | |
| 81e3fc25 | 277 | || !(gv = gv_fetchsv(sv, GV_ADD, type)))) |
| dc3c76f8 NC |
278 | { |
| 279 | **spp = &PL_sv_undef; | |
| 280 | return NULL; | |
| 281 | } | |
| 282 | } | |
| 283 | else { | |
| 81e3fc25 | 284 | gv = gv_fetchsv(sv, GV_ADD, type); |
| dc3c76f8 NC |
285 | } |
| 286 | return gv; | |
| 287 | } | |
| 288 | ||
| 79072805 LW |
289 | PP(pp_rv2sv) |
| 290 | { | |
| 97aff369 | 291 | dVAR; dSP; dTOPss; |
| c445ea15 | 292 | GV *gv = NULL; |
| 79072805 | 293 | |
| 0824d667 DM |
294 | if (!(PL_op->op_private & OPpDEREFed)) |
| 295 | SvGETMAGIC(sv); | |
| ed6116ce | 296 | if (SvROK(sv)) { |
| 93d7320b DM |
297 | if (SvAMAGIC(sv)) { |
| 298 | sv = amagic_deref_call(sv, to_sv_amg); | |
| 299 | SPAGAIN; | |
| 300 | } | |
| f5284f61 | 301 | |
| ed6116ce | 302 | sv = SvRV(sv); |
| 79072805 LW |
303 | switch (SvTYPE(sv)) { |
| 304 | case SVt_PVAV: | |
| 305 | case SVt_PVHV: | |
| 306 | case SVt_PVCV: | |
| cbae9b9f YST |
307 | case SVt_PVFM: |
| 308 | case SVt_PVIO: | |
| cea2e8a9 | 309 | DIE(aTHX_ "Not a SCALAR reference"); |
| 42d0e0b7 | 310 | default: NOOP; |
| 79072805 LW |
311 | } |
| 312 | } | |
| 313 | else { | |
| 159b6efe | 314 | gv = MUTABLE_GV(sv); |
| 748a9306 | 315 | |
| 6e592b3a | 316 | if (!isGV_with_GP(gv)) { |
| dc3c76f8 NC |
317 | gv = Perl_softref2xv(aTHX_ sv, "a SCALAR", SVt_PV, &sp); |
| 318 | if (!gv) | |
| 319 | RETURN; | |
| 463ee0b2 | 320 | } |
| 29c711a3 | 321 | sv = GvSVn(gv); |
| a0d0e21e | 322 | } |
| 533c011a | 323 | if (PL_op->op_flags & OPf_MOD) { |
| 82d03984 RGS |
324 | if (PL_op->op_private & OPpLVAL_INTRO) { |
| 325 | if (cUNOP->op_first->op_type == OP_NULL) | |
| 159b6efe | 326 | sv = save_scalar(MUTABLE_GV(TOPs)); |
| 82d03984 RGS |
327 | else if (gv) |
| 328 | sv = save_scalar(gv); | |
| 329 | else | |
| f1f66076 | 330 | Perl_croak(aTHX_ "%s", PL_no_localize_ref); |
| 82d03984 | 331 | } |
| 533c011a NIS |
332 | else if (PL_op->op_private & OPpDEREF) |
| 333 | vivify_ref(sv, PL_op->op_private & OPpDEREF); | |
| 79072805 | 334 | } |
| a0d0e21e | 335 | SETs(sv); |
| 79072805 LW |
336 | RETURN; |
| 337 | } | |
| 338 | ||
| 339 | PP(pp_av2arylen) | |
| 340 | { | |
| 97aff369 | 341 | dVAR; dSP; |
| 502c6561 | 342 | AV * const av = MUTABLE_AV(TOPs); |
| 02d85cc3 EB |
343 | const I32 lvalue = PL_op->op_flags & OPf_MOD || LVRET; |
| 344 | if (lvalue) { | |
| 345 | SV ** const sv = Perl_av_arylen_p(aTHX_ MUTABLE_AV(av)); | |
| 346 | if (!*sv) { | |
| 347 | *sv = newSV_type(SVt_PVMG); | |
| 348 | sv_magic(*sv, MUTABLE_SV(av), PERL_MAGIC_arylen, NULL, 0); | |
| 349 | } | |
| 350 | SETs(*sv); | |
| 351 | } else { | |
| 352 | SETs(sv_2mortal(newSViv( | |
| 353 | AvFILL(MUTABLE_AV(av)) + CopARYBASE_get(PL_curcop) | |
| 354 | ))); | |
| 79072805 | 355 | } |
| 79072805 LW |
356 | RETURN; |
| 357 | } | |
| 358 | ||
| a0d0e21e LW |
359 | PP(pp_pos) |
| 360 | { | |
| 2154eca7 | 361 | dVAR; dSP; dPOPss; |
| 8ec5e241 | 362 | |
| 78f9721b | 363 | if (PL_op->op_flags & OPf_MOD || LVRET) { |
| 16eb5365 FC |
364 | SV * const ret = sv_2mortal(newSV_type(SVt_PVLV)); /* Not TARG RT#67838 */ |
| 365 | sv_magic(ret, NULL, PERL_MAGIC_pos, NULL, 0); | |
| 366 | LvTYPE(ret) = '.'; | |
| 367 | LvTARG(ret) = SvREFCNT_inc_simple(sv); | |
| 2154eca7 | 368 | PUSHs(ret); /* no SvSETMAGIC */ |
| a0d0e21e LW |
369 | RETURN; |
| 370 | } | |
| 371 | else { | |
| a0d0e21e | 372 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) { |
| 1b6737cc | 373 | const MAGIC * const mg = mg_find(sv, PERL_MAGIC_regex_global); |
| 565764a8 | 374 | if (mg && mg->mg_len >= 0) { |
| 2154eca7 | 375 | dTARGET; |
| a0ed51b3 | 376 | I32 i = mg->mg_len; |
| 7e2040f0 | 377 | if (DO_UTF8(sv)) |
| a0ed51b3 | 378 | sv_pos_b2u(sv, &i); |
| fc15ae8f | 379 | PUSHi(i + CopARYBASE_get(PL_curcop)); |
| a0d0e21e LW |
380 | RETURN; |
| 381 | } | |
| 382 | } | |
| 383 | RETPUSHUNDEF; | |
| 384 | } | |
| 385 | } | |
| 386 | ||
| 79072805 LW |
387 | PP(pp_rv2cv) |
| 388 | { | |
| 97aff369 | 389 | dVAR; dSP; |
| 79072805 | 390 | GV *gv; |
| 1eced8f8 | 391 | HV *stash_unused; |
| c445ea15 AL |
392 | const I32 flags = (PL_op->op_flags & OPf_SPECIAL) |
| 393 | ? 0 | |
| 394 | : ((PL_op->op_private & (OPpLVAL_INTRO|OPpMAY_RETURN_CONSTANT)) == OPpMAY_RETURN_CONSTANT) | |
| 395 | ? GV_ADD|GV_NOEXPAND | |
| 396 | : GV_ADD; | |
| 4633a7c4 LW |
397 | /* We usually try to add a non-existent subroutine in case of AUTOLOAD. */ |
| 398 | /* (But not in defined().) */ | |
| e26df76a | 399 | |
| 1eced8f8 | 400 | CV *cv = sv_2cv(TOPs, &stash_unused, &gv, flags); |
| 07055b4c CS |
401 | if (cv) { |
| 402 | if (CvCLONE(cv)) | |
| ad64d0ec | 403 | cv = MUTABLE_CV(sv_2mortal(MUTABLE_SV(cv_clone(cv)))); |
| d32f2495 SC |
404 | if ((PL_op->op_private & OPpLVAL_INTRO)) { |
| 405 | if (gv && GvCV(gv) == cv && (gv = gv_autoload4(GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv), FALSE))) | |
| 406 | cv = GvCV(gv); | |
| 407 | if (!CvLVALUE(cv)) | |
| 408 | DIE(aTHX_ "Can't modify non-lvalue subroutine call"); | |
| 409 | } | |
| 07055b4c | 410 | } |
| e26df76a | 411 | else if ((flags == (GV_ADD|GV_NOEXPAND)) && gv && SvROK(gv)) { |
| ea726b52 | 412 | cv = MUTABLE_CV(gv); |
| e26df76a | 413 | } |
| 07055b4c | 414 | else |
| ea726b52 | 415 | cv = MUTABLE_CV(&PL_sv_undef); |
| ad64d0ec | 416 | SETs(MUTABLE_SV(cv)); |
| 79072805 LW |
417 | RETURN; |
| 418 | } | |
| 419 | ||
| c07a80fd | 420 | PP(pp_prototype) |
| 421 | { | |
| 97aff369 | 422 | dVAR; dSP; |
| c07a80fd | 423 | CV *cv; |
| 424 | HV *stash; | |
| 425 | GV *gv; | |
| fabdb6c0 | 426 | SV *ret = &PL_sv_undef; |
| c07a80fd | 427 | |
| b6c543e3 | 428 | if (SvPOK(TOPs) && SvCUR(TOPs) >= 7) { |
| e3f73d4e | 429 | const char * s = SvPVX_const(TOPs); |
| b6c543e3 | 430 | if (strnEQ(s, "CORE::", 6)) { |
| 5458a98a | 431 | const int code = keyword(s + 6, SvCUR(TOPs) - 6, 1); |
| b6c543e3 IZ |
432 | if (code < 0) { /* Overridable. */ |
| 433 | #define MAX_ARGS_OP ((sizeof(I32) - 1) * 2) | |
| 59b085e1 | 434 | int i = 0, n = 0, seen_question = 0, defgv = 0; |
| b6c543e3 IZ |
435 | I32 oa; |
| 436 | char str[ MAX_ARGS_OP * 2 + 2 ]; /* One ';', one '\0' */ | |
| 437 | ||
| bdf1bb36 | 438 | if (code == -KEY_chop || code == -KEY_chomp |
| f23102e2 | 439 | || code == -KEY_exec || code == -KEY_system) |
| 77bc9082 | 440 | goto set; |
| d116c547 | 441 | if (code == -KEY_mkdir) { |
| 84bafc02 | 442 | ret = newSVpvs_flags("_;$", SVs_TEMP); |
| d116c547 RGS |
443 | goto set; |
| 444 | } | |
| 7c8178a1 | 445 | if (code == -KEY_keys || code == -KEY_values || code == -KEY_each) { |
| cba5a3b0 DG |
446 | ret = newSVpvs_flags("+", SVs_TEMP); |
| 447 | goto set; | |
| 448 | } | |
| 449 | if (code == -KEY_push || code == -KEY_unshift) { | |
| 450 | ret = newSVpvs_flags("+@", SVs_TEMP); | |
| 451 | goto set; | |
| 452 | } | |
| 453 | if (code == -KEY_pop || code == -KEY_shift) { | |
| 454 | ret = newSVpvs_flags(";+", SVs_TEMP); | |
| 455 | goto set; | |
| 456 | } | |
| 457 | if (code == -KEY_splice) { | |
| 458 | ret = newSVpvs_flags("+;$$@", SVs_TEMP); | |
| 1db4d195 FC |
459 | goto set; |
| 460 | } | |
| 461 | if (code == -KEY_tied || code == -KEY_untie) { | |
| 462 | ret = newSVpvs_flags("\\[$@%*]", SVs_TEMP); | |
| 463 | goto set; | |
| 464 | } | |
| 465 | if (code == -KEY_tie) { | |
| 466 | ret = newSVpvs_flags("\\[$@%*]$@", SVs_TEMP); | |
| 7c8178a1 RGS |
467 | goto set; |
| 468 | } | |
| e3f73d4e RGS |
469 | if (code == -KEY_readpipe) { |
| 470 | s = "CORE::backtick"; | |
| 471 | } | |
| b6c543e3 | 472 | while (i < MAXO) { /* The slow way. */ |
| 22c35a8c GS |
473 | if (strEQ(s + 6, PL_op_name[i]) |
| 474 | || strEQ(s + 6, PL_op_desc[i])) | |
| 475 | { | |
| b6c543e3 | 476 | goto found; |
| 22c35a8c | 477 | } |
| b6c543e3 IZ |
478 | i++; |
| 479 | } | |
| 480 | goto nonesuch; /* Should not happen... */ | |
| 481 | found: | |
| 59b085e1 | 482 | defgv = PL_opargs[i] & OA_DEFGV; |
| 22c35a8c | 483 | oa = PL_opargs[i] >> OASHIFT; |
| b6c543e3 | 484 | while (oa) { |
| 59b085e1 | 485 | if (oa & OA_OPTIONAL && !seen_question && !defgv) { |
| b6c543e3 IZ |
486 | seen_question = 1; |
| 487 | str[n++] = ';'; | |
| ef54e1a4 | 488 | } |
| b13b2135 | 489 | if ((oa & (OA_OPTIONAL - 1)) >= OA_AVREF |
| 6e97e420 SC |
490 | && (oa & (OA_OPTIONAL - 1)) <= OA_SCALARREF |
| 491 | /* But globs are already references (kinda) */ | |
| 492 | && (oa & (OA_OPTIONAL - 1)) != OA_FILEREF | |
| 493 | ) { | |
| b6c543e3 IZ |
494 | str[n++] = '\\'; |
| 495 | } | |
| b6c543e3 IZ |
496 | str[n++] = ("?$@@%&*$")[oa & (OA_OPTIONAL - 1)]; |
| 497 | oa = oa >> 4; | |
| 498 | } | |
| 59b085e1 RGS |
499 | if (defgv && str[n - 1] == '$') |
| 500 | str[n - 1] = '_'; | |
| b6c543e3 | 501 | str[n++] = '\0'; |
| 59cd0e26 | 502 | ret = newSVpvn_flags(str, n - 1, SVs_TEMP); |
| ef54e1a4 JH |
503 | } |
| 504 | else if (code) /* Non-Overridable */ | |
| b6c543e3 IZ |
505 | goto set; |
| 506 | else { /* None such */ | |
| 507 | nonesuch: | |
| d470f89e | 508 | DIE(aTHX_ "Can't find an opnumber for \"%s\"", s+6); |
| b6c543e3 IZ |
509 | } |
| 510 | } | |
| 511 | } | |
| f2c0649b | 512 | cv = sv_2cv(TOPs, &stash, &gv, 0); |
| 5f05dabc | 513 | if (cv && SvPOK(cv)) |
| 59cd0e26 | 514 | ret = newSVpvn_flags(SvPVX_const(cv), SvCUR(cv), SVs_TEMP); |
| b6c543e3 | 515 | set: |
| c07a80fd | 516 | SETs(ret); |
| 517 | RETURN; | |
| 518 | } | |
| 519 | ||
| a0d0e21e LW |
520 | PP(pp_anoncode) |
| 521 | { | |
| 97aff369 | 522 | dVAR; dSP; |
| ea726b52 | 523 | CV *cv = MUTABLE_CV(PAD_SV(PL_op->op_targ)); |
| a5f75d66 | 524 | if (CvCLONE(cv)) |
| ad64d0ec | 525 | cv = MUTABLE_CV(sv_2mortal(MUTABLE_SV(cv_clone(cv)))); |
| 5f05dabc | 526 | EXTEND(SP,1); |
| ad64d0ec | 527 | PUSHs(MUTABLE_SV(cv)); |
| a0d0e21e LW |
528 | RETURN; |
| 529 | } | |
| 530 | ||
| 531 | PP(pp_srefgen) | |
| 79072805 | 532 | { |
| 97aff369 | 533 | dVAR; dSP; |
| 71be2cbc | 534 | *SP = refto(*SP); |
| 79072805 | 535 | RETURN; |
| 8ec5e241 | 536 | } |
| a0d0e21e LW |
537 | |
| 538 | PP(pp_refgen) | |
| 539 | { | |
| 97aff369 | 540 | dVAR; dSP; dMARK; |
| a0d0e21e | 541 | if (GIMME != G_ARRAY) { |
| 5f0b1d4e GS |
542 | if (++MARK <= SP) |
| 543 | *MARK = *SP; | |
| 544 | else | |
| 3280af22 | 545 | *MARK = &PL_sv_undef; |
| 5f0b1d4e GS |
546 | *MARK = refto(*MARK); |
| 547 | SP = MARK; | |
| 548 | RETURN; | |
| a0d0e21e | 549 | } |
| bbce6d69 | 550 | EXTEND_MORTAL(SP - MARK); |
| 71be2cbc | 551 | while (++MARK <= SP) |
| 552 | *MARK = refto(*MARK); | |
| a0d0e21e | 553 | RETURN; |
| 79072805 LW |
554 | } |
| 555 | ||
| 76e3520e | 556 | STATIC SV* |
| cea2e8a9 | 557 | S_refto(pTHX_ SV *sv) |
| 71be2cbc | 558 | { |
| 97aff369 | 559 | dVAR; |
| 71be2cbc | 560 | SV* rv; |
| 561 | ||
| 7918f24d NC |
562 | PERL_ARGS_ASSERT_REFTO; |
| 563 | ||
| 71be2cbc | 564 | if (SvTYPE(sv) == SVt_PVLV && LvTYPE(sv) == 'y') { |
| 565 | if (LvTARGLEN(sv)) | |
| 68dc0745 | 566 | vivify_defelem(sv); |
| 567 | if (!(sv = LvTARG(sv))) | |
| 3280af22 | 568 | sv = &PL_sv_undef; |
| 0dd88869 | 569 | else |
| b37c2d43 | 570 | SvREFCNT_inc_void_NN(sv); |
| 71be2cbc | 571 | } |
| d8b46c1b | 572 | else if (SvTYPE(sv) == SVt_PVAV) { |
| 502c6561 NC |
573 | if (!AvREAL((const AV *)sv) && AvREIFY((const AV *)sv)) |
| 574 | av_reify(MUTABLE_AV(sv)); | |
| d8b46c1b | 575 | SvTEMP_off(sv); |
| b37c2d43 | 576 | SvREFCNT_inc_void_NN(sv); |
| d8b46c1b | 577 | } |
| f2933f5f DM |
578 | else if (SvPADTMP(sv) && !IS_PADGV(sv)) |
| 579 | sv = newSVsv(sv); | |
| 71be2cbc | 580 | else { |
| 581 | SvTEMP_off(sv); | |
| b37c2d43 | 582 | SvREFCNT_inc_void_NN(sv); |
| 71be2cbc | 583 | } |
| 584 | rv = sv_newmortal(); | |
| 4df7f6af | 585 | sv_upgrade(rv, SVt_IV); |
| b162af07 | 586 | SvRV_set(rv, sv); |
| 71be2cbc | 587 | SvROK_on(rv); |
| 588 | return rv; | |
| 589 | } | |
| 590 | ||
| 79072805 LW |
591 | PP(pp_ref) |
| 592 | { | |
| 97aff369 | 593 | dVAR; dSP; dTARGET; |
| e1ec3a88 | 594 | const char *pv; |
| 1b6737cc | 595 | SV * const sv = POPs; |
| f12c7020 | 596 | |
| 5b295bef RD |
597 | if (sv) |
| 598 | SvGETMAGIC(sv); | |
| f12c7020 | 599 | |
| a0d0e21e | 600 | if (!sv || !SvROK(sv)) |
| 4633a7c4 | 601 | RETPUSHNO; |
| 79072805 | 602 | |
| cba0b539 FR |
603 | pv = sv_reftype(SvRV(sv),TRUE); |
| 604 | PUSHp(pv, strlen(pv)); | |
| 79072805 LW |
605 | RETURN; |
| 606 | } | |
| 607 | ||
| 608 | PP(pp_bless) | |
| 609 | { | |
| 97aff369 | 610 | dVAR; dSP; |
| 463ee0b2 | 611 | HV *stash; |
| 79072805 | 612 | |
| 463ee0b2 | 613 | if (MAXARG == 1) |
| 11faa288 | 614 | stash = CopSTASH(PL_curcop); |
| 7b8d334a | 615 | else { |
| 1b6737cc | 616 | SV * const ssv = POPs; |
| 7b8d334a | 617 | STRLEN len; |
| e1ec3a88 | 618 | const char *ptr; |
| 81689caa | 619 | |
| 016a42f3 | 620 | if (ssv && !SvGMAGICAL(ssv) && !SvAMAGIC(ssv) && SvROK(ssv)) |
| 81689caa | 621 | Perl_croak(aTHX_ "Attempt to bless into a reference"); |
| 5c144d81 | 622 | ptr = SvPV_const(ssv,len); |
| a2a5de95 NC |
623 | if (len == 0) |
| 624 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), | |
| 625 | "Explicit blessing to '' (assuming package main)"); | |
| da51bb9b | 626 | stash = gv_stashpvn(ptr, len, GV_ADD); |
| 7b8d334a | 627 | } |
| a0d0e21e | 628 | |
| 5d3fdfeb | 629 | (void)sv_bless(TOPs, stash); |
| 79072805 LW |
630 | RETURN; |
| 631 | } | |
| 632 | ||
| fb73857a | 633 | PP(pp_gelem) |
| 634 | { | |
| 97aff369 | 635 | dVAR; dSP; |
| b13b2135 | 636 | |
| 1b6737cc AL |
637 | SV *sv = POPs; |
| 638 | const char * const elem = SvPV_nolen_const(sv); | |
| 159b6efe | 639 | GV * const gv = MUTABLE_GV(POPs); |
| c445ea15 | 640 | SV * tmpRef = NULL; |
| 1b6737cc | 641 | |
| c445ea15 | 642 | sv = NULL; |
| c4ba80c3 NC |
643 | if (elem) { |
| 644 | /* elem will always be NUL terminated. */ | |
| 1b6737cc | 645 | const char * const second_letter = elem + 1; |
| c4ba80c3 NC |
646 | switch (*elem) { |
| 647 | case 'A': | |
| 1b6737cc | 648 | if (strEQ(second_letter, "RRAY")) |
| ad64d0ec | 649 | tmpRef = MUTABLE_SV(GvAV(gv)); |
| c4ba80c3 NC |
650 | break; |
| 651 | case 'C': | |
| 1b6737cc | 652 | if (strEQ(second_letter, "ODE")) |
| ad64d0ec | 653 | tmpRef = MUTABLE_SV(GvCVu(gv)); |
| c4ba80c3 NC |
654 | break; |
| 655 | case 'F': | |
| 1b6737cc | 656 | if (strEQ(second_letter, "ILEHANDLE")) { |
| c4ba80c3 NC |
657 | /* finally deprecated in 5.8.0 */ |
| 658 | deprecate("*glob{FILEHANDLE}"); | |
| ad64d0ec | 659 | tmpRef = MUTABLE_SV(GvIOp(gv)); |
| c4ba80c3 NC |
660 | } |
| 661 | else | |
| 1b6737cc | 662 | if (strEQ(second_letter, "ORMAT")) |
| ad64d0ec | 663 | tmpRef = MUTABLE_SV(GvFORM(gv)); |
| c4ba80c3 NC |
664 | break; |
| 665 | case 'G': | |
| 1b6737cc | 666 | if (strEQ(second_letter, "LOB")) |
| ad64d0ec | 667 | tmpRef = MUTABLE_SV(gv); |
| c4ba80c3 NC |
668 | break; |
| 669 | case 'H': | |
| 1b6737cc | 670 | if (strEQ(second_letter, "ASH")) |
| ad64d0ec | 671 | tmpRef = MUTABLE_SV(GvHV(gv)); |
| c4ba80c3 NC |
672 | break; |
| 673 | case 'I': | |
| 1b6737cc | 674 | if (*second_letter == 'O' && !elem[2]) |
| ad64d0ec | 675 | tmpRef = MUTABLE_SV(GvIOp(gv)); |
| c4ba80c3 NC |
676 | break; |
| 677 | case 'N': | |
| 1b6737cc | 678 | if (strEQ(second_letter, "AME")) |
| a663657d | 679 | sv = newSVhek(GvNAME_HEK(gv)); |
| c4ba80c3 NC |
680 | break; |
| 681 | case 'P': | |
| 1b6737cc | 682 | if (strEQ(second_letter, "ACKAGE")) { |
| 7fa3a4ab NC |
683 | const HV * const stash = GvSTASH(gv); |
| 684 | const HEK * const hek = stash ? HvNAME_HEK(stash) : NULL; | |
| 396482e1 | 685 | sv = hek ? newSVhek(hek) : newSVpvs("__ANON__"); |
| c4ba80c3 NC |
686 | } |
| 687 | break; | |
| 688 | case 'S': | |
| 1b6737cc | 689 | if (strEQ(second_letter, "CALAR")) |
| f9d52e31 | 690 | tmpRef = GvSVn(gv); |
| c4ba80c3 | 691 | break; |
| 39b99f21 | 692 | } |
| fb73857a | 693 | } |
| 76e3520e GS |
694 | if (tmpRef) |
| 695 | sv = newRV(tmpRef); | |
| fb73857a | 696 | if (sv) |
| 697 | sv_2mortal(sv); | |
| 698 | else | |
| 3280af22 | 699 | sv = &PL_sv_undef; |
| fb73857a | 700 | XPUSHs(sv); |
| 701 | RETURN; | |
| 702 | } | |
| 703 | ||
| a0d0e21e | 704 | /* Pattern matching */ |
| 79072805 | 705 | |
| a0d0e21e | 706 | PP(pp_study) |
| 79072805 | 707 | { |
| 97aff369 | 708 | dVAR; dSP; dPOPss; |
| a0d0e21e LW |
709 | register unsigned char *s; |
| 710 | register I32 pos; | |
| 711 | register I32 ch; | |
| 712 | register I32 *sfirst; | |
| 713 | register I32 *snext; | |
| a0d0e21e LW |
714 | STRLEN len; |
| 715 | ||
| 3280af22 | 716 | if (sv == PL_lastscream) { |
| 1e422769 | 717 | if (SvSCREAM(sv)) |
| 718 | RETPUSHYES; | |
| 719 | } | |
| a4f4e906 | 720 | s = (unsigned char*)(SvPV(sv, len)); |
| bc9a5256 | 721 | if (len == 0 || len > I32_MAX || !SvPOK(sv) || SvUTF8(sv) || SvVALID(sv)) { |
| a4f4e906 NC |
722 | /* No point in studying a zero length string, and not safe to study |
| 723 | anything that doesn't appear to be a simple scalar (and hence might | |
| 724 | change between now and when the regexp engine runs without our set | |
| bd473224 | 725 | magic ever running) such as a reference to an object with overloaded |
| bc9a5256 NC |
726 | stringification. Also refuse to study an FBM scalar, as this gives |
| 727 | more flexibility in SV flag usage. No real-world code would ever | |
| 728 | end up studying an FBM scalar, so this isn't a real pessimisation. | |
| 729 | */ | |
| a4f4e906 NC |
730 | RETPUSHNO; |
| 731 | } | |
| 5d59f95a | 732 | pos = len; |
| a4f4e906 NC |
733 | |
| 734 | if (PL_lastscream) { | |
| 735 | SvSCREAM_off(PL_lastscream); | |
| 736 | SvREFCNT_dec(PL_lastscream); | |
| c07a80fd | 737 | } |
| b37c2d43 | 738 | PL_lastscream = SvREFCNT_inc_simple(sv); |
| 1e422769 | 739 | |
| 3280af22 NIS |
740 | if (pos > PL_maxscream) { |
| 741 | if (PL_maxscream < 0) { | |
| 742 | PL_maxscream = pos + 80; | |
| a02a5408 JC |
743 | Newx(PL_screamfirst, 256, I32); |
| 744 | Newx(PL_screamnext, PL_maxscream, I32); | |
| 79072805 LW |
745 | } |
| 746 | else { | |
| 3280af22 NIS |
747 | PL_maxscream = pos + pos / 4; |
| 748 | Renew(PL_screamnext, PL_maxscream, I32); | |
| 79072805 | 749 | } |
| 79072805 | 750 | } |
| a0d0e21e | 751 | |
| 3280af22 NIS |
752 | sfirst = PL_screamfirst; |
| 753 | snext = PL_screamnext; | |
| a0d0e21e LW |
754 | |
| 755 | if (!sfirst || !snext) | |
| cea2e8a9 | 756 | DIE(aTHX_ "do_study: out of memory"); |
| a0d0e21e LW |
757 | |
| 758 | for (ch = 256; ch; --ch) | |
| 759 | *sfirst++ = -1; | |
| 760 | sfirst -= 256; | |
| 761 | ||
| 762 | while (--pos >= 0) { | |
| 1b6737cc | 763 | register const I32 ch = s[pos]; |
| a0d0e21e LW |
764 | if (sfirst[ch] >= 0) |
| 765 | snext[pos] = sfirst[ch] - pos; | |
| 766 | else | |
| 767 | snext[pos] = -pos; | |
| 768 | sfirst[ch] = pos; | |
| 79072805 LW |
769 | } |
| 770 | ||
| c07a80fd | 771 | SvSCREAM_on(sv); |
| 14befaf4 | 772 | /* piggyback on m//g magic */ |
| c445ea15 | 773 | sv_magic(sv, NULL, PERL_MAGIC_regex_global, NULL, 0); |
| 1e422769 | 774 | RETPUSHYES; |
| 79072805 LW |
775 | } |
| 776 | ||
| a0d0e21e | 777 | PP(pp_trans) |
| 79072805 | 778 | { |
| 97aff369 | 779 | dVAR; dSP; dTARG; |
| a0d0e21e LW |
780 | SV *sv; |
| 781 | ||
| 533c011a | 782 | if (PL_op->op_flags & OPf_STACKED) |
| a0d0e21e | 783 | sv = POPs; |
| 59f00321 RGS |
784 | else if (PL_op->op_private & OPpTARGET_MY) |
| 785 | sv = GETTARGET; | |
| 79072805 | 786 | else { |
| 54b9620d | 787 | sv = DEFSV; |
| a0d0e21e | 788 | EXTEND(SP,1); |
| 79072805 | 789 | } |
| adbc6bb1 | 790 | TARG = sv_newmortal(); |
| bb16bae8 FC |
791 | if(PL_op->op_type == OP_TRANSR) { |
| 792 | SV * const newsv = newSVsv(sv); | |
| 793 | do_trans(newsv); | |
| 794 | mPUSHs(newsv); | |
| 795 | } | |
| 796 | else PUSHi(do_trans(sv)); | |
| a0d0e21e | 797 | RETURN; |
| 79072805 LW |
798 | } |
| 799 | ||
| a0d0e21e | 800 | /* Lvalue operators. */ |
| 79072805 | 801 | |
| 81745e4e NC |
802 | static void |
| 803 | S_do_chomp(pTHX_ SV *retval, SV *sv, bool chomping) | |
| 804 | { | |
| 805 | dVAR; | |
| 806 | STRLEN len; | |
| 807 | char *s; | |
| 808 | ||
| 809 | PERL_ARGS_ASSERT_DO_CHOMP; | |
| 810 | ||
| 811 | if (chomping && (RsSNARF(PL_rs) || RsRECORD(PL_rs))) | |
| 812 | return; | |
| 813 | if (SvTYPE(sv) == SVt_PVAV) { | |
| 814 | I32 i; | |
| 815 | AV *const av = MUTABLE_AV(sv); | |
| 816 | const I32 max = AvFILL(av); | |
| 817 | ||
| 818 | for (i = 0; i <= max; i++) { | |
| 819 | sv = MUTABLE_SV(av_fetch(av, i, FALSE)); | |
| 820 | if (sv && ((sv = *(SV**)sv), sv != &PL_sv_undef)) | |
| 821 | do_chomp(retval, sv, chomping); | |
| 822 | } | |
| 823 | return; | |
| 824 | } | |
| 825 | else if (SvTYPE(sv) == SVt_PVHV) { | |
| 826 | HV* const hv = MUTABLE_HV(sv); | |
| 827 | HE* entry; | |
| 828 | (void)hv_iterinit(hv); | |
| 829 | while ((entry = hv_iternext(hv))) | |
| 830 | do_chomp(retval, hv_iterval(hv,entry), chomping); | |
| 831 | return; | |
| 832 | } | |
| 833 | else if (SvREADONLY(sv)) { | |
| 834 | if (SvFAKE(sv)) { | |
| 835 | /* SV is copy-on-write */ | |
| 836 | sv_force_normal_flags(sv, 0); | |
| 837 | } | |
| 838 | if (SvREADONLY(sv)) | |
| 839 | Perl_croak_no_modify(aTHX); | |
| 840 | } | |
| 841 | ||
| 842 | if (PL_encoding) { | |
| 843 | if (!SvUTF8(sv)) { | |
| 844 | /* XXX, here sv is utf8-ized as a side-effect! | |
| 845 | If encoding.pm is used properly, almost string-generating | |
| 846 | operations, including literal strings, chr(), input data, etc. | |
| 847 | should have been utf8-ized already, right? | |
| 848 | */ | |
| 849 | sv_recode_to_utf8(sv, PL_encoding); | |
| 850 | } | |
| 851 | } | |
| 852 | ||
| 853 | s = SvPV(sv, len); | |
| 854 | if (chomping) { | |
| 855 | char *temp_buffer = NULL; | |
| 856 | SV *svrecode = NULL; | |
| 857 | ||
| 858 | if (s && len) { | |
| 859 | s += --len; | |
| 860 | if (RsPARA(PL_rs)) { | |
| 861 | if (*s != '\n') | |
| 862 | goto nope; | |
| 863 | ++SvIVX(retval); | |
| 864 | while (len && s[-1] == '\n') { | |
| 865 | --len; | |
| 866 | --s; | |
| 867 | ++SvIVX(retval); | |
| 868 | } | |
| 869 | } | |
| 870 | else { | |
| 871 | STRLEN rslen, rs_charlen; | |
| 872 | const char *rsptr = SvPV_const(PL_rs, rslen); | |
| 873 | ||
| 874 | rs_charlen = SvUTF8(PL_rs) | |
| 875 | ? sv_len_utf8(PL_rs) | |
| 876 | : rslen; | |
| 877 | ||
| 878 | if (SvUTF8(PL_rs) != SvUTF8(sv)) { | |
| 879 | /* Assumption is that rs is shorter than the scalar. */ | |
| 880 | if (SvUTF8(PL_rs)) { | |
| 881 | /* RS is utf8, scalar is 8 bit. */ | |
| 882 | bool is_utf8 = TRUE; | |
| 883 | temp_buffer = (char*)bytes_from_utf8((U8*)rsptr, | |
| 884 | &rslen, &is_utf8); | |
| 885 | if (is_utf8) { | |
| 886 | /* Cannot downgrade, therefore cannot possibly match | |
| 887 | */ | |
| 888 | assert (temp_buffer == rsptr); | |
| 889 | temp_buffer = NULL; | |
| 890 | goto nope; | |
| 891 | } | |
| 892 | rsptr = temp_buffer; | |
| 893 | } | |
| 894 | else if (PL_encoding) { | |
| 895 | /* RS is 8 bit, encoding.pm is used. | |
| 896 | * Do not recode PL_rs as a side-effect. */ | |
| 897 | svrecode = newSVpvn(rsptr, rslen); | |
| 898 | sv_recode_to_utf8(svrecode, PL_encoding); | |
| 899 | rsptr = SvPV_const(svrecode, rslen); | |
| 900 | rs_charlen = sv_len_utf8(svrecode); | |
| 901 | } | |
| 902 | else { | |
| 903 | /* RS is 8 bit, scalar is utf8. */ | |
| 904 | temp_buffer = (char*)bytes_to_utf8((U8*)rsptr, &rslen); | |
| 905 | rsptr = temp_buffer; | |
| 906 | } | |
| 907 | } | |
| 908 | if (rslen == 1) { | |
| 909 | if (*s != *rsptr) | |
| 910 | goto nope; | |
| 911 | ++SvIVX(retval); | |
| 912 | } | |
| 913 | else { | |
| 914 | if (len < rslen - 1) | |
| 915 | goto nope; | |
| 916 | len -= rslen - 1; | |
| 917 | s -= rslen - 1; | |
| 918 | if (memNE(s, rsptr, rslen)) | |
| 919 | goto nope; | |
| 920 | SvIVX(retval) += rs_charlen; | |
| 921 | } | |
| 922 | } | |
| 923 | s = SvPV_force_nolen(sv); | |
| 924 | SvCUR_set(sv, len); | |
| 925 | *SvEND(sv) = '\0'; | |
| 926 | SvNIOK_off(sv); | |
| 927 | SvSETMAGIC(sv); | |
| 928 | } | |
| 929 | nope: | |
| 930 | ||
| 931 | SvREFCNT_dec(svrecode); | |
| 932 | ||
| 933 | Safefree(temp_buffer); | |
| 934 | } else { | |
| 935 | if (len && !SvPOK(sv)) | |
| 936 | s = SvPV_force_nomg(sv, len); | |
| 937 | if (DO_UTF8(sv)) { | |
| 938 | if (s && len) { | |
| 939 | char * const send = s + len; | |
| 940 | char * const start = s; | |
| 941 | s = send - 1; | |
| 942 | while (s > start && UTF8_IS_CONTINUATION(*s)) | |
| 943 | s--; | |
| 944 | if (is_utf8_string((U8*)s, send - s)) { | |
| 945 | sv_setpvn(retval, s, send - s); | |
| 946 | *s = '\0'; | |
| 947 | SvCUR_set(sv, s - start); | |
| 948 | SvNIOK_off(sv); | |
| 949 | SvUTF8_on(retval); | |
| 950 | } | |
| 951 | } | |
| 952 | else | |
| 953 | sv_setpvs(retval, ""); | |
| 954 | } | |
| 955 | else if (s && len) { | |
| 956 | s += --len; | |
| 957 | sv_setpvn(retval, s, 1); | |
| 958 | *s = '\0'; | |
| 959 | SvCUR_set(sv, len); | |
| 960 | SvUTF8_off(sv); | |
| 961 | SvNIOK_off(sv); | |
| 962 | } | |
| 963 | else | |
| 964 | sv_setpvs(retval, ""); | |
| 965 | SvSETMAGIC(sv); | |
| 966 | } | |
| 967 | } | |
| 968 | ||
| a0d0e21e LW |
969 | PP(pp_schop) |
| 970 | { | |
| 97aff369 | 971 | dVAR; dSP; dTARGET; |
| fa54efae NC |
972 | const bool chomping = PL_op->op_type == OP_SCHOMP; |
| 973 | ||
| 974 | if (chomping) | |
| 975 | sv_setiv(TARG, 0); | |
| 976 | do_chomp(TARG, TOPs, chomping); | |
| a0d0e21e LW |
977 | SETTARG; |
| 978 | RETURN; | |
| 79072805 LW |
979 | } |
| 980 | ||
| a0d0e21e | 981 | PP(pp_chop) |
| 79072805 | 982 | { |
| 97aff369 | 983 | dVAR; dSP; dMARK; dTARGET; dORIGMARK; |
| fa54efae | 984 | const bool chomping = PL_op->op_type == OP_CHOMP; |
| 8ec5e241 | 985 | |
| fa54efae NC |
986 | if (chomping) |
| 987 | sv_setiv(TARG, 0); | |
| 20cf1f79 | 988 | while (MARK < SP) |
| fa54efae | 989 | do_chomp(TARG, *++MARK, chomping); |
| 20cf1f79 NC |
990 | SP = ORIGMARK; |
| 991 | XPUSHTARG; | |
| a0d0e21e | 992 | RETURN; |
| 79072805 LW |
993 | } |
| 994 | ||
| a0d0e21e LW |
995 | PP(pp_undef) |
| 996 | { | |
| 97aff369 | 997 | dVAR; dSP; |
| a0d0e21e LW |
998 | SV *sv; |
| 999 | ||
| 533c011a | 1000 | if (!PL_op->op_private) { |
| 774d564b | 1001 | EXTEND(SP, 1); |
| a0d0e21e | 1002 | RETPUSHUNDEF; |
| 774d564b | 1003 | } |
| 79072805 | 1004 | |
| a0d0e21e LW |
1005 | sv = POPs; |
| 1006 | if (!sv) | |
| 1007 | RETPUSHUNDEF; | |
| 85e6fe83 | 1008 | |
| 765f542d | 1009 | SV_CHECK_THINKFIRST_COW_DROP(sv); |
| 85e6fe83 | 1010 | |
| a0d0e21e LW |
1011 | switch (SvTYPE(sv)) { |
| 1012 | case SVt_NULL: | |
| 1013 | break; | |
| 1014 | case SVt_PVAV: | |
| 502c6561 | 1015 | av_undef(MUTABLE_AV(sv)); |
| a0d0e21e LW |
1016 | break; |
| 1017 | case SVt_PVHV: | |
| 85fbaab2 | 1018 | hv_undef(MUTABLE_HV(sv)); |
| a0d0e21e LW |
1019 | break; |
| 1020 | case SVt_PVCV: | |
| a2a5de95 NC |
1021 | if (cv_const_sv((const CV *)sv)) |
| 1022 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), "Constant subroutine %s undefined", | |
| 1023 | CvANON((const CV *)sv) ? "(anonymous)" | |
| 1024 | : GvENAME(CvGV((const CV *)sv))); | |
| 5f66b61c | 1025 | /* FALLTHROUGH */ |
| 9607fc9c | 1026 | case SVt_PVFM: |
| 6fc92669 GS |
1027 | { |
| 1028 | /* let user-undef'd sub keep its identity */ | |
| ea726b52 NC |
1029 | GV* const gv = CvGV((const CV *)sv); |
| 1030 | cv_undef(MUTABLE_CV(sv)); | |
| b3f91e91 | 1031 | CvGV_set(MUTABLE_CV(sv), gv); |
| 6fc92669 | 1032 | } |
| a0d0e21e | 1033 | break; |
| 8e07c86e | 1034 | case SVt_PVGV: |
| 6e592b3a | 1035 | if (SvFAKE(sv)) { |
| 3280af22 | 1036 | SvSetMagicSV(sv, &PL_sv_undef); |
| 6e592b3a BM |
1037 | break; |
| 1038 | } | |
| 1039 | else if (isGV_with_GP(sv)) { | |
| 20408e3c | 1040 | GP *gp; |
| dd69841b BB |
1041 | HV *stash; |
| 1042 | ||
| dd69841b | 1043 | /* undef *Pkg::meth_name ... */ |
| e530fb81 FC |
1044 | bool method_changed |
| 1045 | = GvCVu((const GV *)sv) && (stash = GvSTASH((const GV *)sv)) | |
| 1046 | && HvENAME_get(stash); | |
| 1047 | /* undef *Foo:: */ | |
| 1048 | if((stash = GvHV((const GV *)sv))) { | |
| 1049 | if(HvENAME_get(stash)) | |
| 1050 | SvREFCNT_inc_simple_void_NN(sv_2mortal((SV *)stash)); | |
| 1051 | else stash = NULL; | |
| 1052 | } | |
| dd69841b | 1053 | |
| 159b6efe | 1054 | gp_free(MUTABLE_GV(sv)); |
| a02a5408 | 1055 | Newxz(gp, 1, GP); |
| c43ae56f | 1056 | GvGP_set(sv, gp_ref(gp)); |
| 561b68a9 | 1057 | GvSV(sv) = newSV(0); |
| 57843af0 | 1058 | GvLINE(sv) = CopLINE(PL_curcop); |
| 159b6efe | 1059 | GvEGV(sv) = MUTABLE_GV(sv); |
| 20408e3c | 1060 | GvMULTI_on(sv); |
| e530fb81 FC |
1061 | |
| 1062 | if(stash) | |
| afdbe55d | 1063 | mro_package_moved(NULL, stash, (const GV *)sv, 0); |
| e530fb81 FC |
1064 | stash = NULL; |
| 1065 | /* undef *Foo::ISA */ | |
| 1066 | if( strEQ(GvNAME((const GV *)sv), "ISA") | |
| 1067 | && (stash = GvSTASH((const GV *)sv)) | |
| 1068 | && (method_changed || HvENAME(stash)) ) | |
| 1069 | mro_isa_changed_in(stash); | |
| 1070 | else if(method_changed) | |
| 1071 | mro_method_changed_in( | |
| da9043f5 | 1072 | GvSTASH((const GV *)sv) |
| e530fb81 FC |
1073 | ); |
| 1074 | ||
| 6e592b3a | 1075 | break; |
| 20408e3c | 1076 | } |
| 6e592b3a | 1077 | /* FALL THROUGH */ |
| a0d0e21e | 1078 | default: |
| b15aece3 | 1079 | if (SvTYPE(sv) >= SVt_PV && SvPVX_const(sv) && SvLEN(sv)) { |
| 8bd4d4c5 | 1080 | SvPV_free(sv); |
| c445ea15 | 1081 | SvPV_set(sv, NULL); |
| 4633a7c4 | 1082 | SvLEN_set(sv, 0); |
| a0d0e21e | 1083 | } |
| 0c34ef67 | 1084 | SvOK_off(sv); |
| 4633a7c4 | 1085 | SvSETMAGIC(sv); |
| 79072805 | 1086 | } |
| a0d0e21e LW |
1087 | |
| 1088 | RETPUSHUNDEF; | |
| 79072805 LW |
1089 | } |
| 1090 | ||
| a0d0e21e | 1091 | PP(pp_predec) |
| 79072805 | 1092 | { |
| 97aff369 | 1093 | dVAR; dSP; |
| 6e592b3a | 1094 | if (SvTYPE(TOPs) >= SVt_PVAV || isGV_with_GP(TOPs)) |
| 6ad8f254 | 1095 | Perl_croak_no_modify(aTHX); |
| 3510b4a1 NC |
1096 | if (!SvREADONLY(TOPs) && SvIOK_notUV(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) |
| 1097 | && SvIVX(TOPs) != IV_MIN) | |
| 55497cff | 1098 | { |
| 45977657 | 1099 | SvIV_set(TOPs, SvIVX(TOPs) - 1); |
| 55497cff | 1100 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
| 748a9306 LW |
1101 | } |
| 1102 | else | |
| 1103 | sv_dec(TOPs); | |
| a0d0e21e LW |
1104 | SvSETMAGIC(TOPs); |
| 1105 | return NORMAL; | |
| 1106 | } | |
| 79072805 | 1107 | |
| a0d0e21e LW |
1108 | PP(pp_postinc) |
| 1109 | { | |
| 97aff369 | 1110 | dVAR; dSP; dTARGET; |
| 6e592b3a | 1111 | if (SvTYPE(TOPs) >= SVt_PVAV || isGV_with_GP(TOPs)) |
| 6ad8f254 | 1112 | Perl_croak_no_modify(aTHX); |
| 7dcb9b98 DM |
1113 | if (SvROK(TOPs)) |
| 1114 | TARG = sv_newmortal(); | |
| a0d0e21e | 1115 | sv_setsv(TARG, TOPs); |
| 3510b4a1 NC |
1116 | if (!SvREADONLY(TOPs) && SvIOK_notUV(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) |
| 1117 | && SvIVX(TOPs) != IV_MAX) | |
| 55497cff | 1118 | { |
| 45977657 | 1119 | SvIV_set(TOPs, SvIVX(TOPs) + 1); |
| 55497cff | 1120 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
| 748a9306 LW |
1121 | } |
| 1122 | else | |
| 6f1401dc | 1123 | sv_inc_nomg(TOPs); |
| a0d0e21e | 1124 | SvSETMAGIC(TOPs); |
| 1e54a23f | 1125 | /* special case for undef: see thread at 2003-03/msg00536.html in archive */ |
| a0d0e21e LW |
1126 | if (!SvOK(TARG)) |
| 1127 | sv_setiv(TARG, 0); | |
| 1128 | SETs(TARG); | |
| 1129 | return NORMAL; | |
| 1130 | } | |
| 79072805 | 1131 | |
| a0d0e21e LW |
1132 | PP(pp_postdec) |
| 1133 | { | |
| 97aff369 | 1134 | dVAR; dSP; dTARGET; |
| 6e592b3a | 1135 | if (SvTYPE(TOPs) >= SVt_PVAV || isGV_with_GP(TOPs)) |
| 6ad8f254 | 1136 | Perl_croak_no_modify(aTHX); |
| 7dcb9b98 DM |
1137 | if (SvROK(TOPs)) |
| 1138 | TARG = sv_newmortal(); | |
| a0d0e21e | 1139 | sv_setsv(TARG, TOPs); |
| 3510b4a1 NC |
1140 | if (!SvREADONLY(TOPs) && SvIOK_notUV(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) |
| 1141 | && SvIVX(TOPs) != IV_MIN) | |
| 55497cff | 1142 | { |
| 45977657 | 1143 | SvIV_set(TOPs, SvIVX(TOPs) - 1); |
| 55497cff | 1144 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
| 748a9306 LW |
1145 | } |
| 1146 | else | |
| 6f1401dc | 1147 | sv_dec_nomg(TOPs); |
| a0d0e21e LW |
1148 | SvSETMAGIC(TOPs); |
| 1149 | SETs(TARG); | |
| 1150 | return NORMAL; | |
| 1151 | } | |
| 79072805 | 1152 | |
| a0d0e21e LW |
1153 | /* Ordinary operators. */ |
| 1154 | ||
| 1155 | PP(pp_pow) | |
| 1156 | { | |
| 800401ee | 1157 | dVAR; dSP; dATARGET; SV *svl, *svr; |
| 58d76dfd | 1158 | #ifdef PERL_PRESERVE_IVUV |
| 52a96ae6 HS |
1159 | bool is_int = 0; |
| 1160 | #endif | |
| 6f1401dc DM |
1161 | tryAMAGICbin_MG(pow_amg, AMGf_assign|AMGf_numeric); |
| 1162 | svr = TOPs; | |
| 1163 | svl = TOPm1s; | |
| 52a96ae6 HS |
1164 | #ifdef PERL_PRESERVE_IVUV |
| 1165 | /* For integer to integer power, we do the calculation by hand wherever | |
| 1166 | we're sure it is safe; otherwise we call pow() and try to convert to | |
| 1167 | integer afterwards. */ | |
| 58d76dfd | 1168 | { |
| 6f1401dc | 1169 | SvIV_please_nomg(svr); |
| 800401ee | 1170 | if (SvIOK(svr)) { |
| 6f1401dc | 1171 | SvIV_please_nomg(svl); |
| 800401ee | 1172 | if (SvIOK(svl)) { |
| 900658e3 PF |
1173 | UV power; |
| 1174 | bool baseuok; | |
| 1175 | UV baseuv; | |
| 1176 | ||
| 800401ee JH |
1177 | if (SvUOK(svr)) { |
| 1178 | power = SvUVX(svr); | |
| 900658e3 | 1179 | } else { |
| 800401ee | 1180 | const IV iv = SvIVX(svr); |
| 900658e3 PF |
1181 | if (iv >= 0) { |
| 1182 | power = iv; | |
| 1183 | } else { | |
| 1184 | goto float_it; /* Can't do negative powers this way. */ | |
| 1185 | } | |
| 1186 | } | |
| 1187 | ||
| 800401ee | 1188 | baseuok = SvUOK(svl); |
| 900658e3 | 1189 | if (baseuok) { |
| 800401ee | 1190 | baseuv = SvUVX(svl); |
| 900658e3 | 1191 | } else { |
| 800401ee | 1192 | const IV iv = SvIVX(svl); |
| 900658e3 PF |
1193 | if (iv >= 0) { |
| 1194 | baseuv = iv; | |
| 1195 | baseuok = TRUE; /* effectively it's a UV now */ | |
| 1196 | } else { | |
| 1197 | baseuv = -iv; /* abs, baseuok == false records sign */ | |
| 1198 | } | |
| 1199 | } | |
| 52a96ae6 HS |
1200 | /* now we have integer ** positive integer. */ |
| 1201 | is_int = 1; | |
| 1202 | ||
| 1203 | /* foo & (foo - 1) is zero only for a power of 2. */ | |
| 58d76dfd | 1204 | if (!(baseuv & (baseuv - 1))) { |
| 52a96ae6 | 1205 | /* We are raising power-of-2 to a positive integer. |
| 58d76dfd JH |
1206 | The logic here will work for any base (even non-integer |
| 1207 | bases) but it can be less accurate than | |
| 1208 | pow (base,power) or exp (power * log (base)) when the | |
| 1209 | intermediate values start to spill out of the mantissa. | |
| 1210 | With powers of 2 we know this can't happen. | |
| 1211 | And powers of 2 are the favourite thing for perl | |
| 1212 | programmers to notice ** not doing what they mean. */ | |
| 1213 | NV result = 1.0; | |
| 1214 | NV base = baseuok ? baseuv : -(NV)baseuv; | |
| 900658e3 PF |
1215 | |
| 1216 | if (power & 1) { | |
| 1217 | result *= base; | |
| 1218 | } | |
| 1219 | while (power >>= 1) { | |
| 1220 | base *= base; | |
| 1221 | if (power & 1) { | |
| 1222 | result *= base; | |
| 1223 | } | |
| 1224 | } | |
| 58d76dfd JH |
1225 | SP--; |
| 1226 | SETn( result ); | |
| 6f1401dc | 1227 | SvIV_please_nomg(svr); |
| 58d76dfd | 1228 | RETURN; |
| 52a96ae6 HS |
1229 | } else { |
| 1230 | register unsigned int highbit = 8 * sizeof(UV); | |
| 900658e3 PF |
1231 | register unsigned int diff = 8 * sizeof(UV); |
| 1232 | while (diff >>= 1) { | |
| 1233 | highbit -= diff; | |
| 1234 | if (baseuv >> highbit) { | |
| 1235 | highbit += diff; | |
| 1236 | } | |
| 52a96ae6 HS |
1237 | } |
| 1238 | /* we now have baseuv < 2 ** highbit */ | |
| 1239 | if (power * highbit <= 8 * sizeof(UV)) { | |
| 1240 | /* result will definitely fit in UV, so use UV math | |
| 1241 | on same algorithm as above */ | |
| 1242 | register UV result = 1; | |
| 1243 | register UV base = baseuv; | |
| f2338a2e | 1244 | const bool odd_power = cBOOL(power & 1); |
| 900658e3 PF |
1245 | if (odd_power) { |
| 1246 | result *= base; | |
| 1247 | } | |
| 1248 | while (power >>= 1) { | |
| 1249 | base *= base; | |
| 1250 | if (power & 1) { | |
| 52a96ae6 | 1251 | result *= base; |
| 52a96ae6 HS |
1252 | } |
| 1253 | } | |
| 1254 | SP--; | |
| 0615a994 | 1255 | if (baseuok || !odd_power) |
| 52a96ae6 HS |
1256 | /* answer is positive */ |
| 1257 | SETu( result ); | |
| 1258 | else if (result <= (UV)IV_MAX) | |
| 1259 | /* answer negative, fits in IV */ | |
| 1260 | SETi( -(IV)result ); | |
| 1261 | else if (result == (UV)IV_MIN) | |
| 1262 | /* 2's complement assumption: special case IV_MIN */ | |
| 1263 | SETi( IV_MIN ); | |
| 1264 | else | |
| 1265 | /* answer negative, doesn't fit */ | |
| 1266 | SETn( -(NV)result ); | |
| 1267 | RETURN; | |
| 1268 | } | |
| 1269 | } | |
| 1270 | } | |
| 1271 | } | |
| 58d76dfd | 1272 | } |
| 52a96ae6 | 1273 | float_it: |
| 58d76dfd | 1274 | #endif |
| a0d0e21e | 1275 | { |
| 6f1401dc DM |
1276 | NV right = SvNV_nomg(svr); |
| 1277 | NV left = SvNV_nomg(svl); | |
| 4efa5a16 | 1278 | (void)POPs; |
| 3aaeb624 JA |
1279 | |
| 1280 | #if defined(USE_LONG_DOUBLE) && defined(HAS_AIX_POWL_NEG_BASE_BUG) | |
| 1281 | /* | |
| 1282 | We are building perl with long double support and are on an AIX OS | |
| 1283 | afflicted with a powl() function that wrongly returns NaNQ for any | |
| 1284 | negative base. This was reported to IBM as PMR #23047-379 on | |
| 1285 | 03/06/2006. The problem exists in at least the following versions | |
| 1286 | of AIX and the libm fileset, and no doubt others as well: | |
| 1287 | ||
| 1288 | AIX 4.3.3-ML10 bos.adt.libm 4.3.3.50 | |
| 1289 | AIX 5.1.0-ML04 bos.adt.libm 5.1.0.29 | |
| 1290 | AIX 5.2.0 bos.adt.libm 5.2.0.85 | |
| 1291 | ||
| 1292 | So, until IBM fixes powl(), we provide the following workaround to | |
| 1293 | handle the problem ourselves. Our logic is as follows: for | |
| 1294 | negative bases (left), we use fmod(right, 2) to check if the | |
| 1295 | exponent is an odd or even integer: | |
| 1296 | ||
| 1297 | - if odd, powl(left, right) == -powl(-left, right) | |
| 1298 | - if even, powl(left, right) == powl(-left, right) | |
| 1299 | ||
| 1300 | If the exponent is not an integer, the result is rightly NaNQ, so | |
| 1301 | we just return that (as NV_NAN). | |
| 1302 | */ | |
| 1303 | ||
| 1304 | if (left < 0.0) { | |
| 1305 | NV mod2 = Perl_fmod( right, 2.0 ); | |
| 1306 | if (mod2 == 1.0 || mod2 == -1.0) { /* odd integer */ | |
| 1307 | SETn( -Perl_pow( -left, right) ); | |
| 1308 | } else if (mod2 == 0.0) { /* even integer */ | |
| 1309 | SETn( Perl_pow( -left, right) ); | |
| 1310 | } else { /* fractional power */ | |
| 1311 | SETn( NV_NAN ); | |
| 1312 | } | |
| 1313 | } else { | |
| 1314 | SETn( Perl_pow( left, right) ); | |
| 1315 | } | |
| 1316 | #else | |
| 52a96ae6 | 1317 | SETn( Perl_pow( left, right) ); |
| 3aaeb624 JA |
1318 | #endif /* HAS_AIX_POWL_NEG_BASE_BUG */ |
| 1319 | ||
| 52a96ae6 HS |
1320 | #ifdef PERL_PRESERVE_IVUV |
| 1321 | if (is_int) | |
| 6f1401dc | 1322 | SvIV_please_nomg(svr); |
| 52a96ae6 HS |
1323 | #endif |
| 1324 | RETURN; | |
| 93a17b20 | 1325 | } |
| a0d0e21e LW |
1326 | } |
| 1327 | ||
| 1328 | PP(pp_multiply) | |
| 1329 | { | |
| 800401ee | 1330 | dVAR; dSP; dATARGET; SV *svl, *svr; |
| 6f1401dc DM |
1331 | tryAMAGICbin_MG(mult_amg, AMGf_assign|AMGf_numeric); |
| 1332 | svr = TOPs; | |
| 1333 | svl = TOPm1s; | |
| 28e5dec8 | 1334 | #ifdef PERL_PRESERVE_IVUV |
| 6f1401dc | 1335 | SvIV_please_nomg(svr); |
| 800401ee | 1336 | if (SvIOK(svr)) { |
| 28e5dec8 JH |
1337 | /* Unless the left argument is integer in range we are going to have to |
| 1338 | use NV maths. Hence only attempt to coerce the right argument if | |
| 1339 | we know the left is integer. */ | |
| 1340 | /* Left operand is defined, so is it IV? */ | |
| 6f1401dc | 1341 | SvIV_please_nomg(svl); |
| 800401ee JH |
1342 | if (SvIOK(svl)) { |
| 1343 | bool auvok = SvUOK(svl); | |
| 1344 | bool buvok = SvUOK(svr); | |
| 28e5dec8 JH |
1345 | const UV topmask = (~ (UV)0) << (4 * sizeof (UV)); |
| 1346 | const UV botmask = ~((~ (UV)0) << (4 * sizeof (UV))); | |
| 1347 | UV alow; | |
| 1348 | UV ahigh; | |
| 1349 | UV blow; | |
| 1350 | UV bhigh; | |
| 1351 | ||
| 1352 | if (auvok) { | |
| 800401ee | 1353 | alow = SvUVX(svl); |
| 28e5dec8 | 1354 | } else { |
| 800401ee | 1355 | const IV aiv = SvIVX(svl); |
| 28e5dec8 JH |
1356 | if (aiv >= 0) { |
| 1357 | alow = aiv; | |
| 1358 | auvok = TRUE; /* effectively it's a UV now */ | |
| 1359 | } else { | |
| 1360 | alow = -aiv; /* abs, auvok == false records sign */ | |
| 1361 | } | |
| 1362 | } | |
| 1363 | if (buvok) { | |
| 800401ee | 1364 | blow = SvUVX(svr); |
| 28e5dec8 | 1365 | } else { |
| 800401ee | 1366 | const IV biv = SvIVX(svr); |
| 28e5dec8 JH |
1367 | if (biv >= 0) { |
| 1368 | blow = biv; | |
| 1369 | buvok = TRUE; /* effectively it's a UV now */ | |
| 1370 | } else { | |
| 1371 | blow = -biv; /* abs, buvok == false records sign */ | |
| 1372 | } | |
| 1373 | } | |
| 1374 | ||
| 1375 | /* If this does sign extension on unsigned it's time for plan B */ | |
| 1376 | ahigh = alow >> (4 * sizeof (UV)); | |
| 1377 | alow &= botmask; | |
| 1378 | bhigh = blow >> (4 * sizeof (UV)); | |
| 1379 | blow &= botmask; | |
| 1380 | if (ahigh && bhigh) { | |
| 6f207bd3 | 1381 | NOOP; |
| 28e5dec8 JH |
1382 | /* eg 32 bit is at least 0x10000 * 0x10000 == 0x100000000 |
| 1383 | which is overflow. Drop to NVs below. */ | |
| 1384 | } else if (!ahigh && !bhigh) { | |
| 1385 | /* eg 32 bit is at most 0xFFFF * 0xFFFF == 0xFFFE0001 | |
| 1386 | so the unsigned multiply cannot overflow. */ | |
| c445ea15 | 1387 | const UV product = alow * blow; |
| 28e5dec8 JH |
1388 | if (auvok == buvok) { |
| 1389 | /* -ve * -ve or +ve * +ve gives a +ve result. */ | |
| 1390 | SP--; | |
| 1391 | SETu( product ); | |
| 1392 | RETURN; | |
| 1393 | } else if (product <= (UV)IV_MIN) { | |
| 1394 | /* 2s complement assumption that (UV)-IV_MIN is correct. */ | |
| 1395 | /* -ve result, which could overflow an IV */ | |
| 1396 | SP--; | |
| 25716404 | 1397 | SETi( -(IV)product ); |
| 28e5dec8 JH |
1398 | RETURN; |
| 1399 | } /* else drop to NVs below. */ | |
| 1400 | } else { | |
| 1401 | /* One operand is large, 1 small */ | |
| 1402 | UV product_middle; | |
| 1403 | if (bhigh) { | |
| 1404 | /* swap the operands */ | |
| 1405 | ahigh = bhigh; | |
| 1406 | bhigh = blow; /* bhigh now the temp var for the swap */ | |
| 1407 | blow = alow; | |
| 1408 | alow = bhigh; | |
| 1409 | } | |
| 1410 | /* now, ((ahigh * blow) << half_UV_len) + (alow * blow) | |
| 1411 | multiplies can't overflow. shift can, add can, -ve can. */ | |
| 1412 | product_middle = ahigh * blow; | |
| 1413 | if (!(product_middle & topmask)) { | |
| 1414 | /* OK, (ahigh * blow) won't lose bits when we shift it. */ | |
| 1415 | UV product_low; | |
| 1416 | product_middle <<= (4 * sizeof (UV)); | |
| 1417 | product_low = alow * blow; | |
| 1418 | ||
| 1419 | /* as for pp_add, UV + something mustn't get smaller. | |
| 1420 | IIRC ANSI mandates this wrapping *behaviour* for | |
| 1421 | unsigned whatever the actual representation*/ | |
| 1422 | product_low += product_middle; | |
| 1423 | if (product_low >= product_middle) { | |
| 1424 | /* didn't overflow */ | |
| 1425 | if (auvok == buvok) { | |
| 1426 | /* -ve * -ve or +ve * +ve gives a +ve result. */ | |
| 1427 | SP--; | |
| 1428 | SETu( product_low ); | |
| 1429 | RETURN; | |
| 1430 | } else if (product_low <= (UV)IV_MIN) { | |
| 1431 | /* 2s complement assumption again */ | |
| 1432 | /* -ve result, which could overflow an IV */ | |
| 1433 | SP--; | |
| 25716404 | 1434 | SETi( -(IV)product_low ); |
| 28e5dec8 JH |
1435 | RETURN; |
| 1436 | } /* else drop to NVs below. */ | |
| 1437 | } | |
| 1438 | } /* product_middle too large */ | |
| 1439 | } /* ahigh && bhigh */ | |
| 800401ee JH |
1440 | } /* SvIOK(svl) */ |
| 1441 | } /* SvIOK(svr) */ | |
| 28e5dec8 | 1442 | #endif |
| a0d0e21e | 1443 | { |
| 6f1401dc DM |
1444 | NV right = SvNV_nomg(svr); |
| 1445 | NV left = SvNV_nomg(svl); | |
| 4efa5a16 | 1446 | (void)POPs; |
| a0d0e21e LW |
1447 | SETn( left * right ); |
| 1448 | RETURN; | |
| 79072805 | 1449 | } |
| a0d0e21e LW |
1450 | } |
| 1451 | ||
| 1452 | PP(pp_divide) | |
| 1453 | { | |
| 800401ee | 1454 | dVAR; dSP; dATARGET; SV *svl, *svr; |
| 6f1401dc DM |
1455 | tryAMAGICbin_MG(div_amg, AMGf_assign|AMGf_numeric); |
| 1456 | svr = TOPs; | |
| 1457 | svl = TOPm1s; | |
| 5479d192 | 1458 | /* Only try to do UV divide first |
| 68795e93 | 1459 | if ((SLOPPYDIVIDE is true) or |
| 5479d192 NC |
1460 | (PERL_PRESERVE_IVUV is true and one or both SV is a UV too large |
| 1461 | to preserve)) | |
| 1462 | The assumption is that it is better to use floating point divide | |
| 1463 | whenever possible, only doing integer divide first if we can't be sure. | |
| 1464 | If NV_PRESERVES_UV is true then we know at compile time that no UV | |
| 1465 | can be too large to preserve, so don't need to compile the code to | |
| 1466 | test the size of UVs. */ | |
| 1467 | ||
| a0d0e21e | 1468 | #ifdef SLOPPYDIVIDE |
| 5479d192 NC |
1469 | # define PERL_TRY_UV_DIVIDE |
| 1470 | /* ensure that 20./5. == 4. */ | |
| a0d0e21e | 1471 | #else |
| 5479d192 NC |
1472 | # ifdef PERL_PRESERVE_IVUV |
| 1473 | # ifndef NV_PRESERVES_UV | |
| 1474 | # define PERL_TRY_UV_DIVIDE | |
| 1475 | # endif | |
| 1476 | # endif | |
| a0d0e21e | 1477 | #endif |
| 5479d192 NC |
1478 | |
| 1479 | #ifdef PERL_TRY_UV_DIVIDE | |
| 6f1401dc | 1480 | SvIV_please_nomg(svr); |
| 800401ee | 1481 | if (SvIOK(svr)) { |
| 6f1401dc | 1482 | SvIV_please_nomg(svl); |
| 800401ee JH |
1483 | if (SvIOK(svl)) { |
| 1484 | bool left_non_neg = SvUOK(svl); | |
| 1485 | bool right_non_neg = SvUOK(svr); | |
| 5479d192 NC |
1486 | UV left; |
| 1487 | UV right; | |
| 1488 | ||
| 1489 | if (right_non_neg) { | |
| 800401ee | 1490 | right = SvUVX(svr); |
| 5479d192 NC |
1491 | } |
| 1492 | else { | |
| 800401ee | 1493 | const IV biv = SvIVX(svr); |
| 5479d192 NC |
1494 | if (biv >= 0) { |
| 1495 | right = biv; | |
| 1496 | right_non_neg = TRUE; /* effectively it's a UV now */ | |
| 1497 | } | |
| 1498 | else { | |
| 1499 | right = -biv; | |
| 1500 | } | |
| 1501 | } | |
| 1502 | /* historically undef()/0 gives a "Use of uninitialized value" | |
| 1503 | warning before dieing, hence this test goes here. | |
| 1504 | If it were immediately before the second SvIV_please, then | |
| 1505 | DIE() would be invoked before left was even inspected, so | |
| 486ec47a | 1506 | no inspection would give no warning. */ |
| 5479d192 NC |
1507 | if (right == 0) |
| 1508 | DIE(aTHX_ "Illegal division by zero"); | |
| 1509 | ||
| 1510 | if (left_non_neg) { | |
| 800401ee | 1511 | left = SvUVX(svl); |
| 5479d192 NC |
1512 | } |
| 1513 | else { | |
| 800401ee | 1514 | const IV aiv = SvIVX(svl); |
| 5479d192 NC |
1515 | if (aiv >= 0) { |
| 1516 | left = aiv; | |
| 1517 | left_non_neg = TRUE; /* effectively it's a UV now */ | |
| 1518 | } | |
| 1519 | else { | |
| 1520 | left = -aiv; | |
| 1521 | } | |
| 1522 | } | |
| 1523 | ||
| 1524 | if (left >= right | |
| 1525 | #ifdef SLOPPYDIVIDE | |
| 1526 | /* For sloppy divide we always attempt integer division. */ | |
| 1527 | #else | |
| 1528 | /* Otherwise we only attempt it if either or both operands | |
| 1529 | would not be preserved by an NV. If both fit in NVs | |
| 0c2ee62a NC |
1530 | we fall through to the NV divide code below. However, |
| 1531 | as left >= right to ensure integer result here, we know that | |
| 1532 | we can skip the test on the right operand - right big | |
| 1533 | enough not to be preserved can't get here unless left is | |
| 1534 | also too big. */ | |
| 1535 | ||
| 1536 | && (left > ((UV)1 << NV_PRESERVES_UV_BITS)) | |
| 5479d192 NC |
1537 | #endif |
| 1538 | ) { | |
| 1539 | /* Integer division can't overflow, but it can be imprecise. */ | |
| 1b6737cc | 1540 | const UV result = left / right; |
| 5479d192 NC |
1541 | if (result * right == left) { |
| 1542 | SP--; /* result is valid */ | |
| 1543 | if (left_non_neg == right_non_neg) { | |
| 1544 | /* signs identical, result is positive. */ | |
| 1545 | SETu( result ); | |
| 1546 | RETURN; | |
| 1547 | } | |
| 1548 | /* 2s complement assumption */ | |
| 1549 | if (result <= (UV)IV_MIN) | |
| 91f3b821 | 1550 | SETi( -(IV)result ); |
| 5479d192 NC |
1551 | else { |
| 1552 | /* It's exact but too negative for IV. */ | |
| 1553 | SETn( -(NV)result ); | |
| 1554 | } | |
| 1555 | RETURN; | |
| 1556 | } /* tried integer divide but it was not an integer result */ | |
| 32fdb065 | 1557 | } /* else (PERL_ABS(result) < 1.0) or (both UVs in range for NV) */ |
| 5479d192 NC |
1558 | } /* left wasn't SvIOK */ |
| 1559 | } /* right wasn't SvIOK */ | |
| 1560 | #endif /* PERL_TRY_UV_DIVIDE */ | |
| 1561 | { | |
| 6f1401dc DM |
1562 | NV right = SvNV_nomg(svr); |
| 1563 | NV left = SvNV_nomg(svl); | |
| 4efa5a16 | 1564 | (void)POPs;(void)POPs; |
| ebc6a117 PD |
1565 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
| 1566 | if (! Perl_isnan(right) && right == 0.0) | |
| 1567 | #else | |
| 5479d192 | 1568 | if (right == 0.0) |
| ebc6a117 | 1569 | #endif |
| 5479d192 NC |
1570 | DIE(aTHX_ "Illegal division by zero"); |
| 1571 | PUSHn( left / right ); | |
| 1572 | RETURN; | |
| 79072805 | 1573 | } |
| a0d0e21e LW |
1574 | } |
| 1575 | ||
| 1576 | PP(pp_modulo) | |
| 1577 | { | |
| 6f1401dc DM |
1578 | dVAR; dSP; dATARGET; |
| 1579 | tryAMAGICbin_MG(modulo_amg, AMGf_assign|AMGf_numeric); | |
| a0d0e21e | 1580 | { |
| 9c5ffd7c JH |
1581 | UV left = 0; |
| 1582 | UV right = 0; | |
| dc656993 JH |
1583 | bool left_neg = FALSE; |
| 1584 | bool right_neg = FALSE; | |
| e2c88acc NC |
1585 | bool use_double = FALSE; |
| 1586 | bool dright_valid = FALSE; | |
| 9c5ffd7c JH |
1587 | NV dright = 0.0; |
| 1588 | NV dleft = 0.0; | |
| 6f1401dc DM |
1589 | SV * const svr = TOPs; |
| 1590 | SV * const svl = TOPm1s; | |
| 1591 | SvIV_please_nomg(svr); | |
| 800401ee JH |
1592 | if (SvIOK(svr)) { |
| 1593 | right_neg = !SvUOK(svr); | |
| e2c88acc | 1594 | if (!right_neg) { |
| 800401ee | 1595 | right = SvUVX(svr); |
| e2c88acc | 1596 | } else { |
| 800401ee | 1597 | const IV biv = SvIVX(svr); |
| e2c88acc NC |
1598 | if (biv >= 0) { |
| 1599 | right = biv; | |
| 1600 | right_neg = FALSE; /* effectively it's a UV now */ | |
| 1601 | } else { | |
| 1602 | right = -biv; | |
| 1603 | } | |
| 1604 | } | |
| 1605 | } | |
| 1606 | else { | |
| 6f1401dc | 1607 | dright = SvNV_nomg(svr); |
| 787eafbd IZ |
1608 | right_neg = dright < 0; |
| 1609 | if (right_neg) | |
| 1610 | dright = -dright; | |
| e2c88acc NC |
1611 | if (dright < UV_MAX_P1) { |
| 1612 | right = U_V(dright); | |
| 1613 | dright_valid = TRUE; /* In case we need to use double below. */ | |
| 1614 | } else { | |
| 1615 | use_double = TRUE; | |
| 1616 | } | |
| 787eafbd | 1617 | } |
| a0d0e21e | 1618 | |
| e2c88acc NC |
1619 | /* At this point use_double is only true if right is out of range for |
| 1620 | a UV. In range NV has been rounded down to nearest UV and | |
| 1621 | use_double false. */ | |
| 6f1401dc | 1622 | SvIV_please_nomg(svl); |
| 800401ee JH |
1623 | if (!use_double && SvIOK(svl)) { |
| 1624 | if (SvIOK(svl)) { | |
| 1625 | left_neg = !SvUOK(svl); | |
| e2c88acc | 1626 | if (!left_neg) { |
| 800401ee | 1627 | left = SvUVX(svl); |
| e2c88acc | 1628 | } else { |
| 800401ee | 1629 | const IV aiv = SvIVX(svl); |
| e2c88acc NC |
1630 | if (aiv >= 0) { |
| 1631 | left = aiv; | |
| 1632 | left_neg = FALSE; /* effectively it's a UV now */ | |
| 1633 | } else { | |
| 1634 | left = -aiv; | |
| 1635 | } | |
| 1636 | } | |
| 1637 | } | |
| 1638 | } | |
| 787eafbd | 1639 | else { |
| 6f1401dc | 1640 | dleft = SvNV_nomg(svl); |
| 787eafbd IZ |
1641 | left_neg = dleft < 0; |
| 1642 | if (left_neg) | |
| 1643 | dleft = -dleft; | |
| 68dc0745 | 1644 | |
| e2c88acc NC |
1645 | /* This should be exactly the 5.6 behaviour - if left and right are |
| 1646 | both in range for UV then use U_V() rather than floor. */ | |
| 1647 | if (!use_double) { | |
| 1648 | if (dleft < UV_MAX_P1) { | |
| 1649 | /* right was in range, so is dleft, so use UVs not double. | |
| 1650 | */ | |
| 1651 | left = U_V(dleft); | |
| 1652 | } | |
| 1653 | /* left is out of range for UV, right was in range, so promote | |
| 1654 | right (back) to double. */ | |
| 1655 | else { | |
| 1656 | /* The +0.5 is used in 5.6 even though it is not strictly | |
| 1657 | consistent with the implicit +0 floor in the U_V() | |
| 1658 | inside the #if 1. */ | |
| 1659 | dleft = Perl_floor(dleft + 0.5); | |
| 1660 | use_double = TRUE; | |
| 1661 | if (dright_valid) | |
| 1662 | dright = Perl_floor(dright + 0.5); | |
| 1663 | else | |
| 1664 | dright = right; | |
| 1665 | } | |
| 1666 | } | |
| 1667 | } | |
| 6f1401dc | 1668 | sp -= 2; |
| 787eafbd | 1669 | if (use_double) { |
| 65202027 | 1670 | NV dans; |
| 787eafbd | 1671 | |
| 787eafbd | 1672 | if (!dright) |
| cea2e8a9 | 1673 | DIE(aTHX_ "Illegal modulus zero"); |
| 787eafbd | 1674 | |
| 65202027 | 1675 | dans = Perl_fmod(dleft, dright); |
| 787eafbd IZ |
1676 | if ((left_neg != right_neg) && dans) |
| 1677 | dans = dright - dans; | |
| 1678 | if (right_neg) | |
| 1679 | dans = -dans; | |
| 1680 | sv_setnv(TARG, dans); | |
| 1681 | } | |
| 1682 | else { | |
| 1683 | UV ans; | |
| 1684 | ||
| 787eafbd | 1685 | if (!right) |
| cea2e8a9 | 1686 | DIE(aTHX_ "Illegal modulus zero"); |
| 787eafbd IZ |
1687 | |
| 1688 | ans = left % right; | |
| 1689 | if ((left_neg != right_neg) && ans) | |
| 1690 | ans = right - ans; | |
| 1691 | if (right_neg) { | |
| 1692 | /* XXX may warn: unary minus operator applied to unsigned type */ | |
| 1693 | /* could change -foo to be (~foo)+1 instead */ | |
| 1694 | if (ans <= ~((UV)IV_MAX)+1) | |
| 1695 | sv_setiv(TARG, ~ans+1); | |
| 1696 | else | |
| 65202027 | 1697 | sv_setnv(TARG, -(NV)ans); |
| 787eafbd IZ |
1698 | } |
| 1699 | else | |
| 1700 | sv_setuv(TARG, ans); | |
| 1701 | } | |
| 1702 | PUSHTARG; | |
| 1703 | RETURN; | |
| 79072805 | 1704 | } |
| a0d0e21e | 1705 | } |
| 79072805 | 1706 | |
| a0d0e21e LW |
1707 | PP(pp_repeat) |
| 1708 | { | |
| 6f1401dc | 1709 | dVAR; dSP; dATARGET; |
| 2b573ace | 1710 | register IV count; |
| 6f1401dc DM |
1711 | SV *sv; |
| 1712 | ||
| 1713 | if (GIMME == G_ARRAY && PL_op->op_private & OPpREPEAT_DOLIST) { | |
| 1714 | /* TODO: think of some way of doing list-repeat overloading ??? */ | |
| 1715 | sv = POPs; | |
| 1716 | SvGETMAGIC(sv); | |
| 1717 | } | |
| 1718 | else { | |
| 1719 | tryAMAGICbin_MG(repeat_amg, AMGf_assign); | |
| 1720 | sv = POPs; | |
| 1721 | } | |
| 1722 | ||
| 2b573ace JH |
1723 | if (SvIOKp(sv)) { |
| 1724 | if (SvUOK(sv)) { | |
| 6f1401dc | 1725 | const UV uv = SvUV_nomg(sv); |
| 2b573ace JH |
1726 | if (uv > IV_MAX) |
| 1727 | count = IV_MAX; /* The best we can do? */ | |
| 1728 | else | |
| 1729 | count = uv; | |
| 1730 | } else { | |
| 6f1401dc | 1731 | const IV iv = SvIV_nomg(sv); |
| 2b573ace JH |
1732 | if (iv < 0) |
| 1733 | count = 0; | |
| 1734 | else | |
| 1735 | count = iv; | |
| 1736 | } | |
| 1737 | } | |
| 1738 | else if (SvNOKp(sv)) { | |
| 6f1401dc | 1739 | const NV nv = SvNV_nomg(sv); |
| 2b573ace JH |
1740 | if (nv < 0.0) |
| 1741 | count = 0; | |
| 1742 | else | |
| 1743 | count = (IV)nv; | |
| 1744 | } | |
| 1745 | else | |
| 6f1401dc DM |
1746 | count = SvIV_nomg(sv); |
| 1747 | ||
| 533c011a | 1748 | if (GIMME == G_ARRAY && PL_op->op_private & OPpREPEAT_DOLIST) { |
| a0d0e21e | 1749 | dMARK; |
| 0bd48802 AL |
1750 | static const char oom_list_extend[] = "Out of memory during list extend"; |
| 1751 | const I32 items = SP - MARK; | |
| 1752 | const I32 max = items * count; | |
| 79072805 | 1753 | |
| 2b573ace JH |
1754 | MEM_WRAP_CHECK_1(max, SV*, oom_list_extend); |
| 1755 | /* Did the max computation overflow? */ | |
| 27d5b266 | 1756 | if (items > 0 && max > 0 && (max < items || max < count)) |
| 2b573ace | 1757 | Perl_croak(aTHX_ oom_list_extend); |
| a0d0e21e LW |
1758 | MEXTEND(MARK, max); |
| 1759 | if (count > 1) { | |
| 1760 | while (SP > MARK) { | |
| 976c8a39 JH |
1761 | #if 0 |
| 1762 | /* This code was intended to fix 20010809.028: | |
| 1763 | ||
| 1764 | $x = 'abcd'; | |
| 1765 | for (($x =~ /./g) x 2) { | |
| 1766 | print chop; # "abcdabcd" expected as output. | |
| 1767 | } | |
| 1768 | ||
| 1769 | * but that change (#11635) broke this code: | |
| 1770 | ||
| 1771 | $x = [("foo")x2]; # only one "foo" ended up in the anonlist. | |
| 1772 | ||
| 1773 | * I can't think of a better fix that doesn't introduce | |
| 1774 | * an efficiency hit by copying the SVs. The stack isn't | |
| 1775 | * refcounted, and mortalisation obviously doesn't | |
| 1776 | * Do The Right Thing when the stack has more than | |
| 1777 | * one pointer to the same mortal value. | |
| 1778 | * .robin. | |
| 1779 | */ | |
| e30acc16 RH |
1780 | if (*SP) { |
| 1781 | *SP = sv_2mortal(newSVsv(*SP)); | |
| 1782 | SvREADONLY_on(*SP); | |
| 1783 | } | |
| 976c8a39 JH |
1784 | #else |
| 1785 | if (*SP) | |
| 1786 | SvTEMP_off((*SP)); | |
| 1787 | #endif | |
| a0d0e21e | 1788 | SP--; |
| 79072805 | 1789 | } |
| a0d0e21e LW |
1790 | MARK++; |
| 1791 | repeatcpy((char*)(MARK + items), (char*)MARK, | |
| ad64d0ec | 1792 | items * sizeof(const SV *), count - 1); |
| a0d0e21e | 1793 | SP += max; |
| 79072805 | 1794 | } |
| a0d0e21e LW |
1795 | else if (count <= 0) |
| 1796 | SP -= items; | |
| 79072805 | 1797 | } |
| a0d0e21e | 1798 | else { /* Note: mark already snarfed by pp_list */ |
| 0bd48802 | 1799 | SV * const tmpstr = POPs; |
| a0d0e21e | 1800 | STRLEN len; |
| 9b877dbb | 1801 | bool isutf; |
| 2b573ace JH |
1802 | static const char oom_string_extend[] = |
| 1803 | "Out of memory during string extend"; | |
| a0d0e21e | 1804 | |
| 6f1401dc DM |
1805 | if (TARG != tmpstr) |
| 1806 | sv_setsv_nomg(TARG, tmpstr); | |
| 1807 | SvPV_force_nomg(TARG, len); | |
| 9b877dbb | 1808 | isutf = DO_UTF8(TARG); |
| 8ebc5c01 | 1809 | if (count != 1) { |
| 1810 | if (count < 1) | |
| 1811 | SvCUR_set(TARG, 0); | |
| 1812 | else { | |
| c445ea15 | 1813 | const STRLEN max = (UV)count * len; |
| 19a94d75 | 1814 | if (len > MEM_SIZE_MAX / count) |
| 2b573ace JH |
1815 | Perl_croak(aTHX_ oom_string_extend); |
| 1816 | MEM_WRAP_CHECK_1(max, char, oom_string_extend); | |
| 8569b9dc | 1817 | SvGROW(TARG, max + 1); |
| a0d0e21e | 1818 | repeatcpy(SvPVX(TARG) + len, SvPVX(TARG), len, count - 1); |
| b162af07 | 1819 | SvCUR_set(TARG, SvCUR(TARG) * count); |
| 7a4c00b4 | 1820 | } |
| a0d0e21e | 1821 | *SvEND(TARG) = '\0'; |
| a0d0e21e | 1822 | } |
| dfcb284a GS |
1823 | if (isutf) |
| 1824 | (void)SvPOK_only_UTF8(TARG); | |
| 1825 | else | |
| 1826 | (void)SvPOK_only(TARG); | |
| b80b6069 RH |
1827 | |
| 1828 | if (PL_op->op_private & OPpREPEAT_DOLIST) { | |
| 1829 | /* The parser saw this as a list repeat, and there | |
| 1830 | are probably several items on the stack. But we're | |
| 1831 | in scalar context, and there's no pp_list to save us | |
| 1832 | now. So drop the rest of the items -- robin@kitsite.com | |
| 1833 | */ | |
| 1834 | dMARK; | |
| 1835 | SP = MARK; | |
| 1836 | } | |
| a0d0e21e | 1837 | PUSHTARG; |
| 79072805 | 1838 | } |
| a0d0e21e LW |
1839 | RETURN; |
| 1840 | } | |
| 79072805 | 1841 | |
| a0d0e21e LW |
1842 | PP(pp_subtract) |
| 1843 | { | |
| 800401ee | 1844 | dVAR; dSP; dATARGET; bool useleft; SV *svl, *svr; |
| 6f1401dc DM |
1845 | tryAMAGICbin_MG(subtr_amg, AMGf_assign|AMGf_numeric); |
| 1846 | svr = TOPs; | |
| 1847 | svl = TOPm1s; | |
| 800401ee | 1848 | useleft = USE_LEFT(svl); |
| 28e5dec8 | 1849 | #ifdef PERL_PRESERVE_IVUV |
| 7dca457a NC |
1850 | /* See comments in pp_add (in pp_hot.c) about Overflow, and how |
| 1851 | "bad things" happen if you rely on signed integers wrapping. */ | |
| 6f1401dc | 1852 | SvIV_please_nomg(svr); |
| 800401ee | 1853 | if (SvIOK(svr)) { |
| 28e5dec8 JH |
1854 | /* Unless the left argument is integer in range we are going to have to |
| 1855 | use NV maths. Hence only attempt to coerce the right argument if | |
| 1856 | we know the left is integer. */ | |
| 9c5ffd7c JH |
1857 | register UV auv = 0; |
| 1858 | bool auvok = FALSE; | |
| 7dca457a NC |
1859 | bool a_valid = 0; |
| 1860 | ||
| 28e5dec8 | 1861 | if (!useleft) { |
| 7dca457a NC |
1862 | auv = 0; |
| 1863 | a_valid = auvok = 1; | |
| 1864 | /* left operand is undef, treat as zero. */ | |
| 28e5dec8 JH |
1865 | } else { |
| 1866 | /* Left operand is defined, so is it IV? */ | |
| 6f1401dc | 1867 | SvIV_please_nomg(svl); |
| 800401ee JH |
1868 | if (SvIOK(svl)) { |
| 1869 | if ((auvok = SvUOK(svl))) | |
| 1870 | auv = SvUVX(svl); | |
| 7dca457a | 1871 | else { |
| 800401ee | 1872 | register const IV aiv = SvIVX(svl); |
| 7dca457a NC |
1873 | if (aiv >= 0) { |
| 1874 | auv = aiv; | |
| 1875 | auvok = 1; /* Now acting as a sign flag. */ | |
| 1876 | } else { /* 2s complement assumption for IV_MIN */ | |
| 1877 | auv = (UV)-aiv; | |
| 28e5dec8 | 1878 | } |
| 7dca457a NC |
1879 | } |
| 1880 | a_valid = 1; | |
| 1881 | } | |
| 1882 | } | |
| 1883 | if (a_valid) { | |
| 1884 | bool result_good = 0; | |
| 1885 | UV result; | |
| 1886 | register UV buv; | |
| 800401ee | 1887 | bool buvok = SvUOK(svr); |
| 9041c2e3 | 1888 | |
| 7dca457a | 1889 | if (buvok) |
| 800401ee | 1890 | buv = SvUVX(svr); |
| 7dca457a | 1891 | else { |
| 800401ee | 1892 | register const IV biv = SvIVX(svr); |
| 7dca457a NC |
1893 | if (biv >= 0) { |
| 1894 | buv = biv; | |
| 1895 | buvok = 1; | |
| 1896 | } else | |
| 1897 | buv = (UV)-biv; | |
| 1898 | } | |
| 1899 | /* ?uvok if value is >= 0. basically, flagged as UV if it's +ve, | |
| 602f51c4 | 1900 | else "IV" now, independent of how it came in. |
| 7dca457a NC |
1901 | if a, b represents positive, A, B negative, a maps to -A etc |
| 1902 | a - b => (a - b) | |
| 1903 | A - b => -(a + b) | |
| 1904 | a - B => (a + b) | |
| 1905 | A - B => -(a - b) | |
| 1906 | all UV maths. negate result if A negative. | |
| 1907 | subtract if signs same, add if signs differ. */ | |
| 1908 | ||
| 1909 | if (auvok ^ buvok) { | |
| 1910 | /* Signs differ. */ | |
| 1911 | result = auv + buv; | |
| 1912 | if (result >= auv) | |
| 1913 | result_good = 1; | |
| 1914 | } else { | |
| 1915 | /* Signs same */ | |
| 1916 | if (auv >= buv) { | |
| 1917 | result = auv - buv; | |
| 1918 | /* Must get smaller */ | |
| 1919 | if (result <= auv) | |
| 1920 | result_good = 1; | |
| 1921 | } else { | |
| 1922 | result = buv - auv; | |
| 1923 | if (result <= buv) { | |
| 1924 | /* result really should be -(auv-buv). as its negation | |
| 1925 | of true value, need to swap our result flag */ | |
| 1926 | auvok = !auvok; | |
| 1927 | result_good = 1; | |
| 28e5dec8 | 1928 | } |
| 28e5dec8 JH |
1929 | } |
| 1930 | } | |
| 7dca457a NC |
1931 | if (result_good) { |
| 1932 | SP--; | |
| 1933 | if (auvok) | |
| 1934 | SETu( result ); | |
| 1935 | else { | |
| 1936 | /* Negate result */ | |
| 1937 | if (result <= (UV)IV_MIN) | |
| 1938 | SETi( -(IV)result ); | |
| 1939 | else { | |
| 1940 | /* result valid, but out of range for IV. */ | |
| 1941 | SETn( -(NV)result ); | |
| 1942 | } | |
| 1943 | } | |
| 1944 | RETURN; | |
| 1945 | } /* Overflow, drop through to NVs. */ | |
| 28e5dec8 JH |
1946 | } |
| 1947 | } | |
| 1948 | #endif | |
| a0d0e21e | 1949 | { |
| 6f1401dc | 1950 | NV value = SvNV_nomg(svr); |
| 4efa5a16 RD |
1951 | (void)POPs; |
| 1952 | ||
| 28e5dec8 JH |
1953 | if (!useleft) { |
| 1954 | /* left operand is undef, treat as zero - value */ | |
| 1955 | SETn(-value); | |
| 1956 | RETURN; | |
| 1957 | } | |
| 6f1401dc | 1958 | SETn( SvNV_nomg(svl) - value ); |
| 28e5dec8 | 1959 | RETURN; |
| 79072805 | 1960 | } |
| a0d0e21e | 1961 | } |
| 79072805 | 1962 | |
| a0d0e21e LW |
1963 | PP(pp_left_shift) |
| 1964 | { | |
| 6f1401dc | 1965 | dVAR; dSP; dATARGET; SV *svl, *svr; |
| a42d0242 | 1966 | tryAMAGICbin_MG(lshift_amg, AMGf_assign|AMGf_numeric); |
| 6f1401dc DM |
1967 | svr = POPs; |
| 1968 | svl = TOPs; | |
| a0d0e21e | 1969 | { |
| 6f1401dc | 1970 | const IV shift = SvIV_nomg(svr); |
| d0ba1bd2 | 1971 | if (PL_op->op_private & HINT_INTEGER) { |
| 6f1401dc | 1972 | const IV i = SvIV_nomg(svl); |
| 972b05a9 | 1973 | SETi(i << shift); |
| d0ba1bd2 JH |
1974 | } |
| 1975 | else { | |
| 6f1401dc | 1976 | const UV u = SvUV_nomg(svl); |
| 972b05a9 | 1977 | SETu(u << shift); |
| d0ba1bd2 | 1978 | } |
| 55497cff | 1979 | RETURN; |
| 79072805 | 1980 | } |
| a0d0e21e | 1981 | } |
| 79072805 | 1982 | |
| a0d0e21e LW |
1983 | PP(pp_right_shift) |
| 1984 | { | |
| 6f1401dc | 1985 | dVAR; dSP; dATARGET; SV *svl, *svr; |
| a42d0242 | 1986 | tryAMAGICbin_MG(rshift_amg, AMGf_assign|AMGf_numeric); |
| 6f1401dc DM |
1987 | svr = POPs; |
| 1988 | svl = TOPs; | |
| a0d0e21e | 1989 | { |
| 6f1401dc | 1990 | const IV shift = SvIV_nomg(svr); |
| d0ba1bd2 | 1991 | if (PL_op->op_private & HINT_INTEGER) { |
| 6f1401dc | 1992 | const IV i = SvIV_nomg(svl); |
| 972b05a9 | 1993 | SETi(i >> shift); |
| d0ba1bd2 JH |
1994 | } |
| 1995 | else { | |
| 6f1401dc | 1996 | const UV u = SvUV_nomg(svl); |
| 972b05a9 | 1997 | SETu(u >> shift); |
| d0ba1bd2 | 1998 | } |
| a0d0e21e | 1999 | RETURN; |
| 93a17b20 | 2000 | } |
| 79072805 LW |
2001 | } |
| 2002 | ||
| a0d0e21e | 2003 | PP(pp_lt) |
| 79072805 | 2004 | { |
| 6f1401dc | 2005 | dVAR; dSP; |
| a42d0242 | 2006 | tryAMAGICbin_MG(lt_amg, AMGf_set|AMGf_numeric); |
| 28e5dec8 | 2007 | #ifdef PERL_PRESERVE_IVUV |
| 6f1401dc | 2008 | SvIV_please_nomg(TOPs); |
| 28e5dec8 | 2009 | if (SvIOK(TOPs)) { |
| 6f1401dc | 2010 | SvIV_please_nomg(TOPm1s); |
| 28e5dec8 JH |
2011 | if (SvIOK(TOPm1s)) { |
| 2012 | bool auvok = SvUOK(TOPm1s); | |
| 2013 | bool buvok = SvUOK(TOPs); | |
| a227d84d | 2014 | |
| 28e5dec8 | 2015 | if (!auvok && !buvok) { /* ## IV < IV ## */ |
| 1b6737cc AL |
2016 | const IV aiv = SvIVX(TOPm1s); |
| 2017 | const IV biv = SvIVX(TOPs); | |
| 28e5dec8 JH |
2018 | |
| 2019 | SP--; | |
| 2020 | SETs(boolSV(aiv < biv)); | |
| 2021 | RETURN; | |
| 2022 | } | |
| 2023 | if (auvok && buvok) { /* ## UV < UV ## */ | |
| 1b6737cc AL |
2024 | const UV auv = SvUVX(TOPm1s); |
| 2025 | const UV buv = SvUVX(TOPs); | |
| 28e5dec8 JH |
2026 | |
| 2027 | SP--; | |
| 2028 | SETs(boolSV(auv < buv)); | |
| 2029 | RETURN; | |
| 2030 | } | |
| 2031 | if (auvok) { /* ## UV < IV ## */ | |
| 2032 | UV auv; | |
| 1b6737cc | 2033 | const IV biv = SvIVX(TOPs); |
| 28e5dec8 JH |
2034 | SP--; |
| 2035 | if (biv < 0) { | |
| 2036 | /* As (a) is a UV, it's >=0, so it cannot be < */ | |
| 2037 | SETs(&PL_sv_no); | |
| 2038 | RETURN; | |
| 2039 | } | |
| 2040 | auv = SvUVX(TOPs); | |
| 28e5dec8 JH |
2041 | SETs(boolSV(auv < (UV)biv)); |
| 2042 | RETURN; | |
| 2043 | } | |
| 2044 | { /* ## IV < UV ## */ | |
| 1b6737cc | 2045 | const IV aiv = SvIVX(TOPm1s); |
| 28e5dec8 JH |
2046 | UV buv; |
| 2047 | ||
| 28e5dec8 JH |
2048 | if (aiv < 0) { |
| 2049 | /* As (b) is a UV, it's >=0, so it must be < */ | |
| 2050 | SP--; | |
| 2051 | SETs(&PL_sv_yes); | |
| 2052 | RETURN; | |
| 2053 | } | |
| 2054 | buv = SvUVX(TOPs); | |
| 2055 | SP--; | |
| 28e5dec8 JH |
2056 | SETs(boolSV((UV)aiv < buv)); |
| 2057 | RETURN; | |
| 2058 | } | |
| 2059 | } | |
| 2060 | } | |
| 2061 | #endif | |
| a0d0e21e | 2062 | { |
| cab190d4 | 2063 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
| 6f1401dc | 2064 | dPOPTOPnnrl_nomg; |
| cab190d4 JD |
2065 | if (Perl_isnan(left) || Perl_isnan(right)) |
| 2066 | RETSETNO; | |
| 2067 | SETs(boolSV(left < right)); | |
| 2068 | #else | |
| 6f1401dc DM |
2069 | dPOPnv_nomg; |
| 2070 | SETs(boolSV(SvNV_nomg(TOPs) < value)); | |
| cab190d4 | 2071 | #endif |
| a0d0e21e | 2072 | RETURN; |
| 79072805 | 2073 | } |
| a0d0e21e | 2074 | } |
| 79072805 | 2075 | |
| a0d0e21e LW |
2076 | PP(pp_gt) |
| 2077 | { | |
| 6f1401dc | 2078 | dVAR; dSP; |
| a42d0242 | 2079 | tryAMAGICbin_MG(gt_amg, AMGf_set|AMGf_numeric); |
| 28e5dec8 | 2080 | #ifdef PERL_PRESERVE_IVUV |
| 6f1401dc | 2081 | SvIV_please_nomg(TOPs); |
| 28e5dec8 | 2082 | if (SvIOK(TOPs)) { |
| 6f1401dc | 2083 | SvIV_please_nomg(TOPm1s); |
| 28e5dec8 JH |
2084 | if (SvIOK(TOPm1s)) { |
| 2085 | bool auvok = SvUOK(TOPm1s); | |
| 2086 | bool buvok = SvUOK(TOPs); | |
| a227d84d | 2087 | |
| 28e5dec8 | 2088 | if (!auvok && !buvok) { /* ## IV > IV ## */ |
| 1b6737cc AL |
2089 | const IV aiv = SvIVX(TOPm1s); |
| 2090 | const IV biv = SvIVX(TOPs); | |
| 2091 | ||
| 28e5dec8 JH |
2092 | SP--; |
| 2093 | SETs(boolSV(aiv > biv)); | |
| 2094 | RETURN; | |
| 2095 | } | |
| 2096 | if (auvok && buvok) { /* ## UV > UV ## */ | |
| 1b6737cc AL |
2097 | const UV auv = SvUVX(TOPm1s); |
| 2098 | const UV buv = SvUVX(TOPs); | |
| 28e5dec8 JH |
2099 | |
| 2100 | SP--; | |
| 2101 | SETs(boolSV(auv > buv)); | |
| 2102 | RETURN; | |
| 2103 | } | |
| 2104 | if (auvok) { /* ## UV > IV ## */ | |
| 2105 | UV auv; | |
| 1b6737cc AL |
2106 | const IV biv = SvIVX(TOPs); |
| 2107 | ||
| 28e5dec8 JH |
2108 | SP--; |
| 2109 | if (biv < 0) { | |
| 2110 | /* As (a) is a UV, it's >=0, so it must be > */ | |
| 2111 | SETs(&PL_sv_yes); | |
| 2112 | RETURN; | |
| 2113 | } | |
| 2114 | auv = SvUVX(TOPs); | |
| 28e5dec8 JH |
2115 | SETs(boolSV(auv > (UV)biv)); |
| 2116 | RETURN; | |
| 2117 | } | |
| 2118 | { /* ## IV > UV ## */ | |
| 1b6737cc | 2119 | const IV aiv = SvIVX(TOPm1s); |
| 28e5dec8 JH |
2120 | UV buv; |
| 2121 | ||
| 28e5dec8 JH |
2122 | if (aiv < 0) { |
| 2123 | /* As (b) is a UV, it's >=0, so it cannot be > */ | |
| 2124 | SP--; | |
| 2125 | SETs(&PL_sv_no); | |
| 2126 | RETURN; | |
| 2127 | } | |
| 2128 | buv = SvUVX(TOPs); | |
| 2129 | SP--; | |
| 28e5dec8 JH |
2130 | SETs(boolSV((UV)aiv > buv)); |
| 2131 | RETURN; | |
| 2132 | } | |
| 2133 | } | |
| 2134 | } | |
| 2135 | #endif | |
| a0d0e21e | 2136 | { |
| cab190d4 | 2137 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
| 6f1401dc | 2138 | dPOPTOPnnrl_nomg; |
| cab190d4 JD |
2139 | if (Perl_isnan(left) || Perl_isnan(right)) |
| 2140 | RETSETNO; | |
| 2141 | SETs(boolSV(left > right)); | |
| 2142 | #else | |
| 6f1401dc DM |
2143 | dPOPnv_nomg; |
| 2144 | SETs(boolSV(SvNV_nomg(TOPs) > value)); | |
| cab190d4 | 2145 | #endif |
| a0d0e21e | 2146 | RETURN; |
| 79072805 | 2147 | } |
| a0d0e21e LW |
2148 | } |
| 2149 | ||
| 2150 | PP(pp_le) | |
| 2151 | { | |
| 6f1401dc | 2152 | dVAR; dSP; |
| a42d0242 | 2153 | tryAMAGICbin_MG(le_amg, AMGf_set|AMGf_numeric); |
| 28e5dec8 | 2154 | #ifdef PERL_PRESERVE_IVUV |
| 6f1401dc | 2155 | SvIV_please_nomg(TOPs); |
| 28e5dec8 | 2156 | if (SvIOK(TOPs)) { |
| 6f1401dc | 2157 | SvIV_please_nomg(TOPm1s); |
| 28e5dec8 JH |
2158 | if (SvIOK(TOPm1s)) { |
| 2159 | bool auvok = SvUOK(TOPm1s); | |
| 2160 | bool buvok = SvUOK(TOPs); | |
| a227d84d | 2161 | |
| 28e5dec8 | 2162 | if (!auvok && !buvok) { /* ## IV <= IV ## */ |
| 1b6737cc AL |
2163 | const IV aiv = SvIVX(TOPm1s); |
| 2164 | const IV biv = SvIVX(TOPs); | |
| 28e5dec8 JH |
2165 | |
| 2166 | SP--; | |
| 2167 | SETs(boolSV(aiv <= biv)); | |
| 2168 | RETURN; | |
| 2169 | } | |
| 2170 | if (auvok && buvok) { /* ## UV <= UV ## */ | |
| 2171 | UV auv = SvUVX(TOPm1s); | |
| 2172 | UV buv = SvUVX(TOPs); | |
| 2173 | ||
| 2174 | SP--; | |
| 2175 | SETs(boolSV(auv <= buv)); | |
| 2176 | RETURN; | |
| 2177 | } | |
| 2178 | if (auvok) { /* ## UV <= IV ## */ | |
| 2179 | UV auv; | |
| 1b6737cc AL |
2180 | const IV biv = SvIVX(TOPs); |
| 2181 | ||
| 28e5dec8 JH |
2182 | SP--; |
| 2183 | if (biv < 0) { | |
| 2184 | /* As (a) is a UV, it's >=0, so a cannot be <= */ | |
| 2185 | SETs(&PL_sv_no); | |
| 2186 | RETURN; | |
| 2187 | } | |
| 2188 | auv = SvUVX(TOPs); | |
| 28e5dec8 JH |
2189 | SETs(boolSV(auv <= (UV)biv)); |
| 2190 | RETURN; | |
| 2191 | } | |
| 2192 | { /* ## IV <= UV ## */ | |
| 1b6737cc | 2193 | const IV aiv = SvIVX(TOPm1s); |
| 28e5dec8 | 2194 | UV buv; |
| 1b6737cc | 2195 | |
| 28e5dec8 JH |
2196 | if (aiv < 0) { |
| 2197 | /* As (b) is a UV, it's >=0, so a must be <= */ | |
| 2198 | SP--; | |
| 2199 | SETs(&PL_sv_yes); | |
| 2200 | RETURN; | |
| 2201 | } | |
| 2202 | buv = SvUVX(TOPs); | |
| 2203 | SP--; | |
| 28e5dec8 JH |
2204 | SETs(boolSV((UV)aiv <= buv)); |
| 2205 | RETURN; | |
| 2206 | } | |
| 2207 | } | |
| 2208 | } | |
| 2209 | #endif | |
| a0d0e21e | 2210 | { |
| cab190d4 | 2211 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
| 6f1401dc | 2212 | dPOPTOPnnrl_nomg; |
| cab190d4 JD |
2213 | if (Perl_isnan(left) || Perl_isnan(right)) |
| 2214 | RETSETNO; | |
| 2215 | SETs(boolSV(left <= right)); | |
| 2216 | #else | |
| 6f1401dc DM |
2217 | dPOPnv_nomg; |
| 2218 | SETs(boolSV(SvNV_nomg(TOPs) <= value)); | |
| cab190d4 | 2219 | #endif |
| a0d0e21e | 2220 | RETURN; |
| 79072805 | 2221 | } |
| a0d0e21e LW |
2222 | } |
| 2223 | ||
| 2224 | PP(pp_ge) | |
| 2225 | { | |
| 6f1401dc | 2226 | dVAR; dSP; |
| a42d0242 | 2227 | tryAMAGICbin_MG(ge_amg,AMGf_set|AMGf_numeric); |
| 28e5dec8 | 2228 | #ifdef PERL_PRESERVE_IVUV |
| 6f1401dc | 2229 | SvIV_please_nomg(TOPs); |
| 28e5dec8 | 2230 | if (SvIOK(TOPs)) { |
| 6f1401dc | 2231 | SvIV_please_nomg(TOPm1s); |
| 28e5dec8 JH |
2232 | if (SvIOK(TOPm1s)) { |
| 2233 | bool auvok = SvUOK(TOPm1s); | |
| 2234 | bool buvok = SvUOK(TOPs); | |
| a227d84d | 2235 | |
| 28e5dec8 | 2236 | if (!auvok && !buvok) { /* ## IV >= IV ## */ |
| 1b6737cc AL |
2237 | const IV aiv = SvIVX(TOPm1s); |
| 2238 | const IV biv = SvIVX(TOPs); | |
| 2239 | ||
| 28e5dec8 JH |
2240 | SP--; |
| 2241 | SETs(boolSV(aiv >= biv)); | |
| 2242 | RETURN; | |
| 2243 | } | |
| 2244 | if (auvok && buvok) { /* ## UV >= UV ## */ | |
| 1b6737cc AL |
2245 | const UV auv = SvUVX(TOPm1s); |
| 2246 | const UV buv = SvUVX(TOPs); | |
| 2247 | ||
| 28e5dec8 JH |
2248 | SP--; |
| 2249 | SETs(boolSV(auv >= buv)); | |
| 2250 | RETURN; | |
| 2251 | } | |
| 2252 | if (auvok) { /* ## UV >= IV ## */ | |
| 2253 | UV auv; | |
| 1b6737cc AL |
2254 | const IV biv = SvIVX(TOPs); |
| 2255 | ||
| 28e5dec8 JH |
2256 | SP--; |
| 2257 | if (biv < 0) { | |
| 2258 | /* As (a) is a UV, it's >=0, so it must be >= */ | |
| 2259 | SETs(&PL_sv_yes); | |
| 2260 | RETURN; | |
| 2261 | } | |
| 2262 | auv = SvUVX(TOPs); | |
| 28e5dec8 JH |
2263 | SETs(boolSV(auv >= (UV)biv)); |
| 2264 | RETURN; | |
| 2265 | } | |
| 2266 | { /* ## IV >= UV ## */ | |
| 1b6737cc | 2267 | const IV aiv = SvIVX(TOPm1s); |
| 28e5dec8 | 2268 | UV buv; |
| 1b6737cc | 2269 | |
| 28e5dec8 JH |
2270 | if (aiv < 0) { |
| 2271 | /* As (b) is a UV, it's >=0, so a cannot be >= */ | |
| 2272 | SP--; | |
| 2273 | SETs(&PL_sv_no); | |
| 2274 | RETURN; | |
| 2275 | } | |
| 2276 | buv = SvUVX(TOPs); | |
| 2277 | SP--; | |
| 28e5dec8 JH |
2278 | SETs(boolSV((UV)aiv >= buv)); |
| 2279 | RETURN; | |
| 2280 | } | |
| 2281 | } | |
| 2282 | } | |
| 2283 | #endif | |
| a0d0e21e | 2284 | { |
| cab190d4 | 2285 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
| 6f1401dc | 2286 | dPOPTOPnnrl_nomg; |
| cab190d4 JD |
2287 | if (Perl_isnan(left) || Perl_isnan(right)) |
| 2288 | RETSETNO; | |
| 2289 | SETs(boolSV(left >= right)); | |
| 2290 | #else | |
| 6f1401dc DM |
2291 | dPOPnv_nomg; |
| 2292 | SETs(boolSV(SvNV_nomg(TOPs) >= value)); | |
| cab190d4 | 2293 | #endif |
| a0d0e21e | 2294 | RETURN; |
| 79072805 | 2295 | } |
| a0d0e21e | 2296 | } |
| 79072805 | 2297 | |
| a0d0e21e LW |
2298 | PP(pp_ne) |
| 2299 | { | |
| 6f1401dc | 2300 | dVAR; dSP; |
| a42d0242 | 2301 | tryAMAGICbin_MG(ne_amg,AMGf_set|AMGf_numeric); |
| 28e5dec8 | 2302 | #ifdef PERL_PRESERVE_IVUV |
| 6f1401dc | 2303 | SvIV_please_nomg(TOPs); |
| 28e5dec8 | 2304 | if (SvIOK(TOPs)) { |
| 6f1401dc | 2305 | SvIV_please_nomg(TOPm1s); |
| 28e5dec8 | 2306 | if (SvIOK(TOPm1s)) { |
| 0bd48802 AL |
2307 | const bool auvok = SvUOK(TOPm1s); |
| 2308 | const bool buvok = SvUOK(TOPs); | |
| a227d84d | 2309 | |
| 30de85b6 NC |
2310 | if (auvok == buvok) { /* ## IV == IV or UV == UV ## */ |
| 2311 | /* Casting IV to UV before comparison isn't going to matter | |
| 2312 | on 2s complement. On 1s complement or sign&magnitude | |
| 2313 | (if we have any of them) it could make negative zero | |
| 2314 | differ from normal zero. As I understand it. (Need to | |
| 2315 | check - is negative zero implementation defined behaviour | |
| 2316 | anyway?). NWC */ | |
| 1b6737cc AL |
2317 | const UV buv = SvUVX(POPs); |
| 2318 | const UV auv = SvUVX(TOPs); | |
| 2319 | ||
| 28e5dec8 JH |
2320 | SETs(boolSV(auv != buv)); |
| 2321 | RETURN; | |
| 2322 | } | |
| 2323 | { /* ## Mixed IV,UV ## */ | |
| 2324 | IV iv; | |
| 2325 | UV uv; | |
| 2326 | ||
| 2327 | /* != is commutative so swap if needed (save code) */ | |
| 2328 | if (auvok) { | |
| 2329 | /* swap. top of stack (b) is the iv */ | |
| 2330 | iv = SvIVX(TOPs); | |
| 2331 | SP--; | |
| 2332 | if (iv < 0) { | |
| 2333 | /* As (a) is a UV, it's >0, so it cannot be == */ | |
| 2334 | SETs(&PL_sv_yes); | |
| 2335 | RETURN; | |
| 2336 | } | |
| 2337 | uv = SvUVX(TOPs); | |
| 2338 | } else { | |
| 2339 | iv = SvIVX(TOPm1s); | |
| 2340 | SP--; | |
| 2341 | if (iv < 0) { | |
| 2342 | /* As (b) is a UV, it's >0, so it cannot be == */ | |
| 2343 | SETs(&PL_sv_yes); | |
| 2344 | RETURN; | |
| 2345 | } | |
| 2346 | uv = SvUVX(*(SP+1)); /* Do I want TOPp1s() ? */ | |
| 2347 | } | |
| 28e5dec8 JH |
2348 | SETs(boolSV((UV)iv != uv)); |
| 2349 | RETURN; | |
| 2350 | } | |
| 2351 | } | |
| 2352 | } | |
| 2353 | #endif | |
| a0d0e21e | 2354 | { |
| cab190d4 | 2355 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
| 6f1401dc | 2356 | dPOPTOPnnrl_nomg; |
| cab190d4 JD |
2357 | if (Perl_isnan(left) || Perl_isnan(right)) |
| 2358 | RETSETYES; | |
| 2359 | SETs(boolSV(left != right)); | |
| 2360 | #else | |
| 6f1401dc DM |
2361 | dPOPnv_nomg; |
| 2362 | SETs(boolSV(SvNV_nomg(TOPs) != value)); | |
| cab190d4 | 2363 | #endif |
| a0d0e21e LW |
2364 | RETURN; |
| 2365 | } | |
| 79072805 LW |
2366 | } |
| 2367 | ||
| a0d0e21e | 2368 | PP(pp_ncmp) |
| 79072805 | 2369 | { |
| 6f1401dc | 2370 | dVAR; dSP; dTARGET; |
| a42d0242 | 2371 | tryAMAGICbin_MG(ncmp_amg, AMGf_numeric); |
| 28e5dec8 JH |
2372 | #ifdef PERL_PRESERVE_IVUV |
| 2373 | /* Fortunately it seems NaN isn't IOK */ | |
| 6f1401dc | 2374 | SvIV_please_nomg(TOPs); |
| 28e5dec8 | 2375 | if (SvIOK(TOPs)) { |
| 6f1401dc | 2376 | SvIV_please_nomg(TOPm1s); |
| 28e5dec8 | 2377 | if (SvIOK(TOPm1s)) { |
| 1b6737cc AL |
2378 | const bool leftuvok = SvUOK(TOPm1s); |
| 2379 | const bool rightuvok = SvUOK(TOPs); | |
| 28e5dec8 JH |
2380 | I32 value; |
| 2381 | if (!leftuvok && !rightuvok) { /* ## IV <=> IV ## */ | |
| 1b6737cc AL |
2382 | const IV leftiv = SvIVX(TOPm1s); |
| 2383 | const IV rightiv = SvIVX(TOPs); | |
| 28e5dec8 JH |
2384 | |
| 2385 | if (leftiv > rightiv) | |
| 2386 | value = 1; | |
| 2387 | else if (leftiv < rightiv) | |
| 2388 | value = -1; | |
| 2389 | else | |
| 2390 | value = 0; | |
| 2391 | } else if (leftuvok && rightuvok) { /* ## UV <=> UV ## */ | |
| 1b6737cc AL |
2392 | const UV leftuv = SvUVX(TOPm1s); |
| 2393 | const UV rightuv = SvUVX(TOPs); | |
| 28e5dec8 JH |
2394 | |
| 2395 | if (leftuv > rightuv) | |
| 2396 | value = 1; | |
| 2397 | else if (leftuv < rightuv) | |
| 2398 | value = -1; | |
| 2399 | else | |
| 2400 | value = 0; | |
| 2401 | } else if (leftuvok) { /* ## UV <=> IV ## */ | |
| 1b6737cc | 2402 | const IV rightiv = SvIVX(TOPs); |
| 28e5dec8 JH |
2403 | if (rightiv < 0) { |
| 2404 | /* As (a) is a UV, it's >=0, so it cannot be < */ | |
| 2405 | value = 1; | |
| 2406 | } else { | |
| 1b6737cc | 2407 | const UV leftuv = SvUVX(TOPm1s); |
| 83bac5dd | 2408 | if (leftuv > (UV)rightiv) { |
| 28e5dec8 JH |
2409 | value = 1; |
| 2410 | } else if (leftuv < (UV)rightiv) { | |
| 2411 | value = -1; | |
| 2412 | } else { | |
| 2413 | value = 0; | |
| 2414 | } | |
| 2415 | } | |
| 2416 | } else { /* ## IV <=> UV ## */ | |
| 1b6737cc | 2417 | const IV leftiv = SvIVX(TOPm1s); |
| 28e5dec8 JH |
2418 | if (leftiv < 0) { |
| 2419 | /* As (b) is a UV, it's >=0, so it must be < */ | |
| 2420 | value = -1; | |
| 2421 | } else { | |
| 1b6737cc | 2422 | const UV rightuv = SvUVX(TOPs); |
| 83bac5dd | 2423 | if ((UV)leftiv > rightuv) { |
| 28e5dec8 | 2424 | value = 1; |
| 83bac5dd | 2425 | } else if ((UV)leftiv < rightuv) { |
| 28e5dec8 JH |
2426 | value = -1; |
| 2427 | } else { | |
| 2428 | value = 0; | |
| 2429 | } | |
| 2430 | } | |
| 2431 | } | |
| 2432 | SP--; | |
| 2433 | SETi(value); | |
| 2434 | RETURN; | |
| 2435 | } | |
| 2436 | } | |
| 2437 | #endif | |
| a0d0e21e | 2438 | { |
| 6f1401dc | 2439 | dPOPTOPnnrl_nomg; |
| a0d0e21e | 2440 | I32 value; |
| 79072805 | 2441 | |
| 06c6da52 | 2442 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
| 1ad04cfd JH |
2443 | if (Perl_isnan(left) || Perl_isnan(right)) { |
| 2444 | SETs(&PL_sv_undef); | |
| 2445 | RETURN; | |
| 2446 | } | |
| 2447 | value = (left > right) - (left < right); | |
| 2448 | #else | |
| ff0cee69 | 2449 | if (left == right) |
| a0d0e21e | 2450 | value = 0; |
| a0d0e21e LW |
2451 | else if (left < right) |
| 2452 | value = -1; | |
| 44a8e56a | 2453 | else if (left > right) |
| 2454 | value = 1; | |
| 2455 | else { | |
| 3280af22 | 2456 | SETs(&PL_sv_undef); |
| 44a8e56a | 2457 | RETURN; |
| 2458 | } | |
| 1ad04cfd | 2459 | #endif |
| a0d0e21e LW |
2460 | SETi(value); |
| 2461 | RETURN; | |
| 79072805 | 2462 | } |
| a0d0e21e | 2463 | } |
| 79072805 | 2464 | |
| afd9910b | 2465 | PP(pp_sle) |
| a0d0e21e | 2466 | { |
| 97aff369 | 2467 | dVAR; dSP; |
| 79072805 | 2468 | |
| afd9910b NC |
2469 | int amg_type = sle_amg; |
| 2470 | int multiplier = 1; | |
| 2471 | int rhs = 1; | |
| 79072805 | 2472 | |
| afd9910b NC |
2473 | switch (PL_op->op_type) { |
| 2474 | case OP_SLT: | |
| 2475 | amg_type = slt_amg; | |
| 2476 | /* cmp < 0 */ | |
| 2477 | rhs = 0; | |
| 2478 | break; | |
| 2479 | case OP_SGT: | |
| 2480 | amg_type = sgt_amg; | |
| 2481 | /* cmp > 0 */ | |
| 2482 | multiplier = -1; | |
| 2483 | rhs = 0; | |
| 2484 | break; | |
| 2485 | case OP_SGE: | |
| 2486 | amg_type = sge_amg; | |
| 2487 | /* cmp >= 0 */ | |
| 2488 | multiplier = -1; | |
| 2489 | break; | |
| 79072805 | 2490 | } |
| 79072805 | 2491 | |
| 6f1401dc | 2492 | tryAMAGICbin_MG(amg_type, AMGf_set); |
| a0d0e21e LW |
2493 | { |
| 2494 | dPOPTOPssrl; | |
| 1b6737cc | 2495 | const int cmp = (IN_LOCALE_RUNTIME |
| 078504b2 FC |
2496 | ? sv_cmp_locale_flags(left, right, 0) |
| 2497 | : sv_cmp_flags(left, right, 0)); | |
| afd9910b | 2498 | SETs(boolSV(cmp * multiplier < rhs)); |
| a0d0e21e LW |
2499 | RETURN; |
| 2500 | } | |
| 2501 | } | |
| 79072805 | 2502 | |
| 36477c24 | 2503 | PP(pp_seq) |
| 2504 | { | |
| 6f1401dc DM |
2505 | dVAR; dSP; |
| 2506 | tryAMAGICbin_MG(seq_amg, AMGf_set); | |
| 36477c24 | 2507 | { |
| 2508 | dPOPTOPssrl; | |
| 078504b2 | 2509 | SETs(boolSV(sv_eq_flags(left, right, 0))); |
| a0d0e21e LW |
2510 | RETURN; |
| 2511 | } | |
| 2512 | } | |
| 79072805 | 2513 | |
| a0d0e21e | 2514 | PP(pp_sne) |
| 79072805 | 2515 | { |
| 6f1401dc DM |
2516 | dVAR; dSP; |
| 2517 | tryAMAGICbin_MG(sne_amg, AMGf_set); | |
| a0d0e21e LW |
2518 | { |
| 2519 | dPOPTOPssrl; | |
| 078504b2 | 2520 | SETs(boolSV(!sv_eq_flags(left, right, 0))); |
| a0d0e21e | 2521 | RETURN; |
| 463ee0b2 | 2522 | } |
| 79072805 LW |
2523 | } |
| 2524 | ||
| a0d0e21e | 2525 | PP(pp_scmp) |
| 79072805 | 2526 | { |
| 6f1401dc DM |
2527 | dVAR; dSP; dTARGET; |
| 2528 | tryAMAGICbin_MG(scmp_amg, 0); | |
| a0d0e21e LW |
2529 | { |
| 2530 | dPOPTOPssrl; | |
| 1b6737cc | 2531 | const int cmp = (IN_LOCALE_RUNTIME |
| 078504b2 FC |
2532 | ? sv_cmp_locale_flags(left, right, 0) |
| 2533 | : sv_cmp_flags(left, right, 0)); | |
| bbce6d69 | 2534 | SETi( cmp ); |
| a0d0e21e LW |
2535 | RETURN; |
| 2536 | } | |
| 2537 | } | |
| 79072805 | 2538 | |
| 55497cff | 2539 | PP(pp_bit_and) |
| 2540 | { | |
| 6f1401dc DM |
2541 | dVAR; dSP; dATARGET; |
| 2542 | tryAMAGICbin_MG(band_amg, AMGf_assign); | |
| a0d0e21e LW |
2543 | { |
| 2544 | dPOPTOPssrl; | |
| 4633a7c4 | 2545 | if (SvNIOKp(left) || SvNIOKp(right)) { |
| b20c4ee1 FC |
2546 | const bool left_ro_nonnum = !SvNIOKp(left) && SvREADONLY(left); |
| 2547 | const bool right_ro_nonnum = !SvNIOKp(right) && SvREADONLY(right); | |
| d0ba1bd2 | 2548 | if (PL_op->op_private & HINT_INTEGER) { |
| 1b6737cc | 2549 | const IV i = SvIV_nomg(left) & SvIV_nomg(right); |
| 972b05a9 | 2550 | SETi(i); |
| d0ba1bd2 JH |
2551 | } |
| 2552 | else { | |
| 1b6737cc | 2553 | const UV u = SvUV_nomg(left) & SvUV_nomg(right); |
| 972b05a9 | 2554 | SETu(u); |
| d0ba1bd2 | 2555 | } |
| b20c4ee1 FC |
2556 | if (left_ro_nonnum) SvNIOK_off(left); |
| 2557 | if (right_ro_nonnum) SvNIOK_off(right); | |
| a0d0e21e LW |
2558 | } |
| 2559 | else { | |
| 533c011a | 2560 | do_vop(PL_op->op_type, TARG, left, right); |
| a0d0e21e LW |
2561 | SETTARG; |
| 2562 | } | |
| 2563 | RETURN; | |
| 2564 | } | |
| 2565 | } | |
| 79072805 | 2566 | |
| a0d0e21e LW |
2567 | PP(pp_bit_or) |
| 2568 | { | |
| 3658c1f1 NC |
2569 | dVAR; dSP; dATARGET; |
| 2570 | const int op_type = PL_op->op_type; | |
| 2571 | ||
| 6f1401dc | 2572 | tryAMAGICbin_MG((op_type == OP_BIT_OR ? bor_amg : bxor_amg), AMGf_assign); |
| a0d0e21e LW |
2573 | { |
| 2574 | dPOPTOPssrl; | |
| 4633a7c4 | 2575 | if (SvNIOKp(left) || SvNIOKp(right)) { |
| b20c4ee1 FC |
2576 | const bool left_ro_nonnum = !SvNIOKp(left) && SvREADONLY(left); |
| 2577 | const bool right_ro_nonnum = !SvNIOKp(right) && SvREADONLY(right); | |
| d0ba1bd2 | 2578 | if (PL_op->op_private & HINT_INTEGER) { |
| 3658c1f1 NC |
2579 | const IV l = (USE_LEFT(left) ? SvIV_nomg(left) : 0); |
| 2580 | const IV r = SvIV_nomg(right); | |
| 2581 | const IV result = op_type == OP_BIT_OR ? (l | r) : (l ^ r); | |
| 2582 | SETi(result); | |
| d0ba1bd2 JH |
2583 | } |
| 2584 | else { | |
| 3658c1f1 NC |
2585 | const UV l = (USE_LEFT(left) ? SvUV_nomg(left) : 0); |
| 2586 | const UV r = SvUV_nomg(right); | |
| 2587 | const UV result = op_type == OP_BIT_OR ? (l | r) : (l ^ r); | |
| 2588 | SETu(result); | |
| d0ba1bd2 | 2589 | } |
| b20c4ee1 FC |
2590 | if (left_ro_nonnum) SvNIOK_off(left); |
| 2591 | if (right_ro_nonnum) SvNIOK_off(right); | |
| a0d0e21e LW |
2592 | } |
| 2593 | else { | |
| 3658c1f1 | 2594 | do_vop(op_type, TARG, left, right); |
| a0d0e21e LW |
2595 | SETTARG; |
| 2596 | } | |
| 2597 | RETURN; | |
| 79072805 | 2598 | } |
| a0d0e21e | 2599 | } |
| 79072805 | 2600 | |
| a0d0e21e LW |
2601 | PP(pp_negate) |
| 2602 | { | |
| 6f1401dc DM |
2603 | dVAR; dSP; dTARGET; |
| 2604 | tryAMAGICun_MG(neg_amg, AMGf_numeric); | |
| a0d0e21e | 2605 | { |
| 6f1401dc | 2606 | SV * const sv = TOPs; |
| 1b6737cc | 2607 | const int flags = SvFLAGS(sv); |
| a5b92898 | 2608 | |
| 886a4465 | 2609 | if( !SvNIOK( sv ) && looks_like_number( sv ) ){ |
| a5b92898 RB |
2610 | SvIV_please( sv ); |
| 2611 | } | |
| 2612 | ||
| 28e5dec8 JH |
2613 | if ((flags & SVf_IOK) || ((flags & (SVp_IOK | SVp_NOK)) == SVp_IOK)) { |
| 2614 | /* It's publicly an integer, or privately an integer-not-float */ | |
| 2615 | oops_its_an_int: | |
| 9b0e499b GS |
2616 | if (SvIsUV(sv)) { |
| 2617 | if (SvIVX(sv) == IV_MIN) { | |
| 28e5dec8 | 2618 | /* 2s complement assumption. */ |
| 9b0e499b GS |
2619 | SETi(SvIVX(sv)); /* special case: -((UV)IV_MAX+1) == IV_MIN */ |
| 2620 | RETURN; | |
| 2621 | } | |
| 2622 | else if (SvUVX(sv) <= IV_MAX) { | |
| beccb14c | 2623 | SETi(-SvIVX(sv)); |
| 9b0e499b GS |
2624 | RETURN; |
| 2625 | } | |
| 2626 | } | |
| 2627 | else if (SvIVX(sv) != IV_MIN) { | |
| 2628 | SETi(-SvIVX(sv)); | |
| 2629 | RETURN; | |
| 2630 | } | |
| 28e5dec8 JH |
2631 | #ifdef PERL_PRESERVE_IVUV |
| 2632 | else { | |
| 2633 | SETu((UV)IV_MIN); | |
| 2634 | RETURN; | |
| 2635 | } | |
| 2636 | #endif | |
| 9b0e499b GS |
2637 | } |
| 2638 | if (SvNIOKp(sv)) | |
| 6f1401dc | 2639 | SETn(-SvNV_nomg(sv)); |
| 4633a7c4 | 2640 | else if (SvPOKp(sv)) { |
| a0d0e21e | 2641 | STRLEN len; |
| 6f1401dc | 2642 | const char * const s = SvPV_nomg_const(sv, len); |
| bbce6d69 | 2643 | if (isIDFIRST(*s)) { |
| 76f68e9b | 2644 | sv_setpvs(TARG, "-"); |
| a0d0e21e | 2645 | sv_catsv(TARG, sv); |
| 79072805 | 2646 | } |
| a0d0e21e | 2647 | else if (*s == '+' || *s == '-') { |
| 6f1401dc DM |
2648 | sv_setsv_nomg(TARG, sv); |
| 2649 | *SvPV_force_nomg(TARG, len) = *s == '-' ? '+' : '-'; | |
| 79072805 | 2650 | } |
| 8eb28a70 | 2651 | else if (DO_UTF8(sv)) { |
| 6f1401dc | 2652 | SvIV_please_nomg(sv); |
| 8eb28a70 JH |
2653 | if (SvIOK(sv)) |
| 2654 | goto oops_its_an_int; | |
| 2655 | if (SvNOK(sv)) | |
| 6f1401dc | 2656 | sv_setnv(TARG, -SvNV_nomg(sv)); |
| 8eb28a70 | 2657 | else { |
| 76f68e9b | 2658 | sv_setpvs(TARG, "-"); |
| 8eb28a70 JH |
2659 | sv_catsv(TARG, sv); |
| 2660 | } | |
| 834a4ddd | 2661 | } |
| 28e5dec8 | 2662 | else { |
| 6f1401dc | 2663 | SvIV_please_nomg(sv); |
| 8eb28a70 JH |
2664 | if (SvIOK(sv)) |
| 2665 | goto oops_its_an_int; | |
| 6f1401dc | 2666 | sv_setnv(TARG, -SvNV_nomg(sv)); |
| 28e5dec8 | 2667 | } |
| a0d0e21e | 2668 | SETTARG; |
| 79072805 | 2669 | } |
| 4633a7c4 | 2670 | else |
| 6f1401dc | 2671 | SETn(-SvNV_nomg(sv)); |
| 79072805 | 2672 | } |
| a0d0e21e | 2673 | RETURN; |
| 79072805 LW |
2674 | } |
| 2675 | ||
| a0d0e21e | 2676 | PP(pp_not) |
| 79072805 | 2677 | { |
| 6f1401dc DM |
2678 | dVAR; dSP; |
| 2679 | tryAMAGICun_MG(not_amg, AMGf_set); | |
| 06c841cf | 2680 | *PL_stack_sp = boolSV(!SvTRUE_nomg(*PL_stack_sp)); |
| a0d0e21e | 2681 | return NORMAL; |
| 79072805 LW |
2682 | } |
| 2683 | ||
| a0d0e21e | 2684 | PP(pp_complement) |
| 79072805 | 2685 | { |
| 6f1401dc | 2686 | dVAR; dSP; dTARGET; |
| a42d0242 | 2687 | tryAMAGICun_MG(compl_amg, AMGf_numeric); |
| a0d0e21e LW |
2688 | { |
| 2689 | dTOPss; | |
| 4633a7c4 | 2690 | if (SvNIOKp(sv)) { |
| d0ba1bd2 | 2691 | if (PL_op->op_private & HINT_INTEGER) { |
| 1b6737cc | 2692 | const IV i = ~SvIV_nomg(sv); |
| 972b05a9 | 2693 | SETi(i); |
| d0ba1bd2 JH |
2694 | } |
| 2695 | else { | |
| 1b6737cc | 2696 | const UV u = ~SvUV_nomg(sv); |
| 972b05a9 | 2697 | SETu(u); |
| d0ba1bd2 | 2698 | } |
| a0d0e21e LW |
2699 | } |
| 2700 | else { | |
| 51723571 | 2701 | register U8 *tmps; |
| 55497cff | 2702 | register I32 anum; |
| a0d0e21e LW |
2703 | STRLEN len; |
| 2704 | ||
| 10516c54 | 2705 | (void)SvPV_nomg_const(sv,len); /* force check for uninit var */ |
| 891f9566 | 2706 | sv_setsv_nomg(TARG, sv); |
| 6f1401dc | 2707 | tmps = (U8*)SvPV_force_nomg(TARG, len); |
| a0d0e21e | 2708 | anum = len; |
| 1d68d6cd | 2709 | if (SvUTF8(TARG)) { |
| a1ca4561 | 2710 | /* Calculate exact length, let's not estimate. */ |
| 1d68d6cd | 2711 | STRLEN targlen = 0; |
| ba210ebe | 2712 | STRLEN l; |
| a1ca4561 YST |
2713 | UV nchar = 0; |
| 2714 | UV nwide = 0; | |
| 01f6e806 | 2715 | U8 * const send = tmps + len; |
| 74d49cd0 TS |
2716 | U8 * const origtmps = tmps; |
| 2717 | const UV utf8flags = UTF8_ALLOW_ANYUV; | |
| 1d68d6cd | 2718 | |
| 1d68d6cd | 2719 | while (tmps < send) { |
| 74d49cd0 TS |
2720 | const UV c = utf8n_to_uvchr(tmps, send-tmps, &l, utf8flags); |
| 2721 | tmps += l; | |
| 5bbb0b5a | 2722 | targlen += UNISKIP(~c); |
| a1ca4561 YST |
2723 | nchar++; |
| 2724 | if (c > 0xff) | |
| 2725 | nwide++; | |
| 1d68d6cd SC |
2726 | } |
| 2727 | ||
| 2728 | /* Now rewind strings and write them. */ | |
| 74d49cd0 | 2729 | tmps = origtmps; |
| a1ca4561 YST |
2730 | |
| 2731 | if (nwide) { | |
| 01f6e806 AL |
2732 | U8 *result; |
| 2733 | U8 *p; | |
| 2734 | ||
| 74d49cd0 | 2735 | Newx(result, targlen + 1, U8); |
| 01f6e806 | 2736 | p = result; |
| a1ca4561 | 2737 | while (tmps < send) { |
| 74d49cd0 TS |
2738 | const UV c = utf8n_to_uvchr(tmps, send-tmps, &l, utf8flags); |
| 2739 | tmps += l; | |
| 01f6e806 | 2740 | p = uvchr_to_utf8_flags(p, ~c, UNICODE_ALLOW_ANY); |
| a1ca4561 | 2741 | } |
| 01f6e806 | 2742 | *p = '\0'; |
| c1c21316 NC |
2743 | sv_usepvn_flags(TARG, (char*)result, targlen, |
| 2744 | SV_HAS_TRAILING_NUL); | |
| a1ca4561 YST |
2745 | SvUTF8_on(TARG); |
| 2746 | } | |
| 2747 | else { | |
| 01f6e806 AL |
2748 | U8 *result; |
| 2749 | U8 *p; | |
| 2750 | ||
| 74d49cd0 | 2751 | Newx(result, nchar + 1, U8); |
| 01f6e806 | 2752 | p = result; |
| a1ca4561 | 2753 | while (tmps < send) { |
| 74d49cd0 TS |
2754 | const U8 c = (U8)utf8n_to_uvchr(tmps, send-tmps, &l, utf8flags); |
| 2755 | tmps += l; | |
| 01f6e806 | 2756 | *p++ = ~c; |
| a1ca4561 | 2757 | } |
| 01f6e806 | 2758 | *p = '\0'; |
| c1c21316 | 2759 | sv_usepvn_flags(TARG, (char*)result, nchar, SV_HAS_TRAILING_NUL); |
| d0a21e00 | 2760 | SvUTF8_off(TARG); |
| 1d68d6cd | 2761 | } |
| ec93b65f | 2762 | SETTARG; |
| 1d68d6cd SC |
2763 | RETURN; |
| 2764 | } | |
| a0d0e21e | 2765 | #ifdef LIBERAL |
| 51723571 JH |
2766 | { |
| 2767 | register long *tmpl; | |
| 2768 | for ( ; anum && (unsigned long)tmps % sizeof(long); anum--, tmps++) | |
| 2769 | *tmps = ~*tmps; | |
| 2770 | tmpl = (long*)tmps; | |
| bb7a0f54 | 2771 | for ( ; anum >= (I32)sizeof(long); anum -= (I32)sizeof(long), tmpl++) |
| 51723571 JH |
2772 | *tmpl = ~*tmpl; |
| 2773 | tmps = (U8*)tmpl; | |
| 2774 | } | |
| a0d0e21e LW |
2775 | #endif |
| 2776 | for ( ; anum > 0; anum--, tmps++) | |
| 2777 | *tmps = ~*tmps; | |
| ec93b65f | 2778 | SETTARG; |
| a0d0e21e LW |
2779 | } |
| 2780 | RETURN; | |
| 2781 | } | |
| 79072805 LW |
2782 | } |
| 2783 | ||
| a0d0e21e LW |
2784 | /* integer versions of some of the above */ |
| 2785 | ||
| a0d0e21e | 2786 | PP(pp_i_multiply) |
| 79072805 | 2787 | { |
| 6f1401dc DM |
2788 | dVAR; dSP; dATARGET; |
| 2789 | tryAMAGICbin_MG(mult_amg, AMGf_assign); | |
| a0d0e21e | 2790 | { |
| 6f1401dc | 2791 | dPOPTOPiirl_nomg; |
| a0d0e21e LW |
2792 | SETi( left * right ); |
| 2793 | RETURN; | |
| 2794 | } | |
| 79072805 LW |
2795 | } |
| 2796 | ||
| a0d0e21e | 2797 | PP(pp_i_divide) |
| 79072805 | 2798 | { |
| 85935d8e | 2799 | IV num; |
| 6f1401dc DM |
2800 | dVAR; dSP; dATARGET; |
| 2801 | tryAMAGICbin_MG(div_amg, AMGf_assign); | |
| a0d0e21e | 2802 | { |
| 6f1401dc | 2803 | dPOPTOPssrl; |
| 85935d8e | 2804 | IV value = SvIV_nomg(right); |
| a0d0e21e | 2805 | if (value == 0) |
| ece1bcef | 2806 | DIE(aTHX_ "Illegal division by zero"); |
| 85935d8e | 2807 | num = SvIV_nomg(left); |
| a0cec769 YST |
2808 | |
| 2809 | /* avoid FPE_INTOVF on some platforms when num is IV_MIN */ | |
| 2810 | if (value == -1) | |
| 2811 | value = - num; | |
| 2812 | else | |
| 2813 | value = num / value; | |
| 6f1401dc | 2814 | SETi(value); |
| a0d0e21e LW |
2815 | RETURN; |
| 2816 | } | |
| 79072805 LW |
2817 | } |
| 2818 | ||
| befad5d1 | 2819 | #if defined(__GLIBC__) && IVSIZE == 8 |
| 224ec323 JH |
2820 | STATIC |
| 2821 | PP(pp_i_modulo_0) | |
| befad5d1 NC |
2822 | #else |
| 2823 | PP(pp_i_modulo) | |
| 2824 | #endif | |
| 224ec323 JH |
2825 | { |
| 2826 | /* This is the vanilla old i_modulo. */ | |
| 6f1401dc DM |
2827 | dVAR; dSP; dATARGET; |
| 2828 | tryAMAGICbin_MG(modulo_amg, AMGf_assign); | |
| 224ec323 | 2829 | { |
| 6f1401dc | 2830 | dPOPTOPiirl_nomg; |
| 224ec323 JH |
2831 | if (!right) |
| 2832 | DIE(aTHX_ "Illegal modulus zero"); | |
| a0cec769 YST |
2833 | /* avoid FPE_INTOVF on some platforms when left is IV_MIN */ |
| 2834 | if (right == -1) | |
| 2835 | SETi( 0 ); | |
| 2836 | else | |
| 2837 | SETi( left % right ); | |
| 224ec323 JH |
2838 | RETURN; |
| 2839 | } | |
| 2840 | } | |
| 2841 | ||
| 11010fa3 | 2842 | #if defined(__GLIBC__) && IVSIZE == 8 |
| 224ec323 JH |
2843 | STATIC |
| 2844 | PP(pp_i_modulo_1) | |
| befad5d1 | 2845 | |
| 224ec323 | 2846 | { |
| 224ec323 | 2847 | /* This is the i_modulo with the workaround for the _moddi3 bug |
| fce2b89e | 2848 | * in (at least) glibc 2.2.5 (the PERL_ABS() the workaround). |
| 224ec323 | 2849 | * See below for pp_i_modulo. */ |
| 6f1401dc DM |
2850 | dVAR; dSP; dATARGET; |
| 2851 | tryAMAGICbin_MG(modulo_amg, AMGf_assign); | |
| 224ec323 | 2852 | { |
| 6f1401dc | 2853 | dPOPTOPiirl_nomg; |
| 224ec323 JH |
2854 | if (!right) |
| 2855 | DIE(aTHX_ "Illegal modulus zero"); | |
| a0cec769 YST |
2856 | /* avoid FPE_INTOVF on some platforms when left is IV_MIN */ |
| 2857 | if (right == -1) | |
| 2858 | SETi( 0 ); | |
| 2859 | else | |
| 2860 | SETi( left % PERL_ABS(right) ); | |
| 224ec323 JH |
2861 | RETURN; |
| 2862 | } | |
| 224ec323 JH |
2863 | } |
| 2864 | ||
| a0d0e21e | 2865 | PP(pp_i_modulo) |
| 79072805 | 2866 | { |
| 6f1401dc DM |
2867 | dVAR; dSP; dATARGET; |
| 2868 | tryAMAGICbin_MG(modulo_amg, AMGf_assign); | |
| 224ec323 | 2869 | { |
| 6f1401dc | 2870 | dPOPTOPiirl_nomg; |
| 224ec323 JH |
2871 | if (!right) |
| 2872 | DIE(aTHX_ "Illegal modulus zero"); | |
| 2873 | /* The assumption is to use hereafter the old vanilla version... */ | |
| 2874 | PL_op->op_ppaddr = | |
| 2875 | PL_ppaddr[OP_I_MODULO] = | |
| 1c127fab | 2876 | Perl_pp_i_modulo_0; |
| 224ec323 JH |
2877 | /* .. but if we have glibc, we might have a buggy _moddi3 |
| 2878 | * (at least glicb 2.2.5 is known to have this bug), in other | |
| 2879 | * words our integer modulus with negative quad as the second | |
| 2880 | * argument might be broken. Test for this and re-patch the | |
| 2881 | * opcode dispatch table if that is the case, remembering to | |
| 2882 | * also apply the workaround so that this first round works | |
| 2883 | * right, too. See [perl #9402] for more information. */ | |
| 224ec323 JH |
2884 | { |
| 2885 | IV l = 3; | |
| 2886 | IV r = -10; | |
| 2887 | /* Cannot do this check with inlined IV constants since | |
| 2888 | * that seems to work correctly even with the buggy glibc. */ | |
| 2889 | if (l % r == -3) { | |
| 2890 | /* Yikes, we have the bug. | |
| 2891 | * Patch in the workaround version. */ | |
| 2892 | PL_op->op_ppaddr = | |
| 2893 | PL_ppaddr[OP_I_MODULO] = | |
| 2894 | &Perl_pp_i_modulo_1; | |
| 2895 | /* Make certain we work right this time, too. */ | |
| 32fdb065 | 2896 | right = PERL_ABS(right); |
| 224ec323 JH |
2897 | } |
| 2898 | } | |
| a0cec769 YST |
2899 | /* avoid FPE_INTOVF on some platforms when left is IV_MIN */ |
| 2900 | if (right == -1) | |
| 2901 | SETi( 0 ); | |
| 2902 | else | |
| 2903 | SETi( left % right ); | |
| 224ec323 JH |
2904 | RETURN; |
| 2905 | } | |
| 79072805 | 2906 | } |
| befad5d1 | 2907 | #endif |
| 79072805 | 2908 | |
| a0d0e21e | 2909 | PP(pp_i_add) |
| 79072805 | 2910 | { |
| 6f1401dc DM |
2911 | dVAR; dSP; dATARGET; |
| 2912 | tryAMAGICbin_MG(add_amg, AMGf_assign); | |
| a0d0e21e | 2913 | { |
| 6f1401dc | 2914 | dPOPTOPiirl_ul_nomg; |
| a0d0e21e LW |
2915 | SETi( left + right ); |
| 2916 | RETURN; | |
| 79072805 | 2917 | } |
| 79072805 LW |
2918 | } |
| 2919 | ||
| a0d0e21e | 2920 | PP(pp_i_subtract) |
| 79072805 | 2921 | { |
| 6f1401dc DM |
2922 | dVAR; dSP; dATARGET; |
| 2923 | tryAMAGICbin_MG(subtr_amg, AMGf_assign); | |
| a0d0e21e | 2924 | { |
| 6f1401dc | 2925 | dPOPTOPiirl_ul_nomg; |
| a0d0e21e LW |
2926 | SETi( left - right ); |
| 2927 | RETURN; | |
| 79072805 | 2928 | } |
| 79072805 LW |
2929 | } |
| 2930 | ||
| a0d0e21e | 2931 | PP(pp_i_lt) |
| 79072805 | 2932 | { |
| 6f1401dc DM |
2933 | dVAR; dSP; |
| 2934 | tryAMAGICbin_MG(lt_amg, AMGf_set); | |
| a0d0e21e | 2935 | { |
| 96b6b87f | 2936 | dPOPTOPiirl_nomg; |
| 54310121 | 2937 | SETs(boolSV(left < right)); |
| a0d0e21e LW |
2938 | RETURN; |
| 2939 | } | |
| 79072805 LW |
2940 | } |
| 2941 | ||
| a0d0e21e | 2942 | PP(pp_i_gt) |
| 79072805 | 2943 | { |
| 6f1401dc DM |
2944 | dVAR; dSP; |
| 2945 | tryAMAGICbin_MG(gt_amg, AMGf_set); | |
| a0d0e21e | 2946 | { |
| 96b6b87f | 2947 | dPOPTOPiirl_nomg; |
| 54310121 | 2948 | SETs(boolSV(left > right)); |
| a0d0e21e LW |
2949 | RETURN; |
| 2950 | } | |
| 79072805 LW |
2951 | } |
| 2952 | ||
| a0d0e21e | 2953 | PP(pp_i_le) |
| 79072805 | 2954 | { |
| 6f1401dc DM |
2955 | dVAR; dSP; |
| 2956 | tryAMAGICbin_MG(le_amg, AMGf_set); | |
| a0d0e21e | 2957 | { |
| 96b6b87f | 2958 | dPOPTOPiirl_nomg; |
| 54310121 | 2959 | SETs(boolSV(left <= right)); |
| a0d0e21e | 2960 | RETURN; |
| 85e6fe83 | 2961 | } |
| 79072805 LW |
2962 | } |
| 2963 | ||
| a0d0e21e | 2964 | PP(pp_i_ge) |
| 79072805 | 2965 | { |
| 6f1401dc DM |
2966 | dVAR; dSP; |
| 2967 | tryAMAGICbin_MG(ge_amg, AMGf_set); | |
| a0d0e21e | 2968 | { |
| 96b6b87f | 2969 | dPOPTOPiirl_nomg; |
| 54310121 | 2970 | SETs(boolSV(left >= right)); |
| a0d0e21e LW |
2971 | RETURN; |
| 2972 | } | |
| 79072805 LW |
2973 | } |
| 2974 | ||
| a0d0e21e | 2975 | PP(pp_i_eq) |
| 79072805 | 2976 | { |
| 6f1401dc DM |
2977 | dVAR; dSP; |
| 2978 | tryAMAGICbin_MG(eq_amg, AMGf_set); | |
| a0d0e21e | 2979 | { |
| 96b6b87f | 2980 | dPOPTOPiirl_nomg; |
| 54310121 | 2981 | SETs(boolSV(left == right)); |
| a0d0e21e LW |
2982 | RETURN; |
| 2983 | } | |
| 79072805 LW |
2984 | } |
| 2985 | ||
| a0d0e21e | 2986 | PP(pp_i_ne) |
| 79072805 | 2987 | { |
| 6f1401dc DM |
2988 | dVAR; dSP; |
| 2989 | tryAMAGICbin_MG(ne_amg, AMGf_set); | |
| a0d0e21e | 2990 | { |
| 96b6b87f | 2991 | dPOPTOPiirl_nomg; |
| 54310121 | 2992 | SETs(boolSV(left != right)); |
| a0d0e21e LW |
2993 | RETURN; |
| 2994 | } | |
| 79072805 LW |
2995 | } |
| 2996 | ||
| a0d0e21e | 2997 | PP(pp_i_ncmp) |
| 79072805 | 2998 | { |
| 6f1401dc DM |
2999 | dVAR; dSP; dTARGET; |
| 3000 | tryAMAGICbin_MG(ncmp_amg, 0); | |
| a0d0e21e | 3001 | { |
| 96b6b87f | 3002 | dPOPTOPiirl_nomg; |
| a0d0e21e | 3003 | I32 value; |
| 79072805 | 3004 | |
| a0d0e21e | 3005 | if (left > right) |
| 79072805 | 3006 | value = 1; |
| a0d0e21e | 3007 | else if (left < right) |
| 79072805 | 3008 | value = -1; |
| a0d0e21e | 3009 | else |
| 79072805 | 3010 | value = 0; |
| a0d0e21e LW |
3011 | SETi(value); |
| 3012 | RETURN; | |
| 79072805 | 3013 | } |
| 85e6fe83 LW |
3014 | } |
| 3015 | ||
| 3016 | PP(pp_i_negate) | |
| 3017 | { | |
| 6f1401dc DM |
3018 | dVAR; dSP; dTARGET; |
| 3019 | tryAMAGICun_MG(neg_amg, 0); | |
| 3020 | { | |
| 3021 | SV * const sv = TOPs; | |
| 3022 | IV const i = SvIV_nomg(sv); | |
| 3023 | SETi(-i); | |
| 3024 | RETURN; | |
| 3025 | } | |
| 85e6fe83 LW |
3026 | } |
| 3027 | ||
| 79072805 LW |
3028 | /* High falutin' math. */ |
| 3029 | ||
| 3030 | PP(pp_atan2) | |
| 3031 | { | |
| 6f1401dc DM |
3032 | dVAR; dSP; dTARGET; |
| 3033 | tryAMAGICbin_MG(atan2_amg, 0); | |
| a0d0e21e | 3034 | { |
| 096c060c | 3035 | dPOPTOPnnrl_nomg; |
| a1021d57 | 3036 | SETn(Perl_atan2(left, right)); |
| a0d0e21e LW |
3037 | RETURN; |
| 3038 | } | |
| 79072805 LW |
3039 | } |
| 3040 | ||
| 3041 | PP(pp_sin) | |
| 3042 | { | |
| 71302fe3 NC |
3043 | dVAR; dSP; dTARGET; |
| 3044 | int amg_type = sin_amg; | |
| 3045 | const char *neg_report = NULL; | |
| bc81784a | 3046 | NV (*func)(NV) = Perl_sin; |
| 71302fe3 NC |
3047 | const int op_type = PL_op->op_type; |
| 3048 | ||
| 3049 | switch (op_type) { | |
| 3050 | case OP_COS: | |
| 3051 | amg_type = cos_amg; | |
| bc81784a | 3052 | func = Perl_cos; |
| 71302fe3 NC |
3053 | break; |
| 3054 | case OP_EXP: | |
| 3055 | amg_type = exp_amg; | |
| bc81784a | 3056 | func = Perl_exp; |
| 71302fe3 NC |
3057 | break; |
| 3058 | case OP_LOG: | |
| 3059 | amg_type = log_amg; | |
| bc81784a | 3060 | func = Perl_log; |
| 71302fe3 NC |
3061 | neg_report = "log"; |
| 3062 | break; | |
| 3063 | case OP_SQRT: | |
| 3064 | amg_type = sqrt_amg; | |
| bc81784a | 3065 | func = Perl_sqrt; |
| 71302fe3 NC |
3066 | neg_report = "sqrt"; |
| 3067 | break; | |
| a0d0e21e | 3068 | } |
| 79072805 | 3069 | |
| 6f1401dc DM |
3070 | |
| 3071 | tryAMAGICun_MG(amg_type, 0); | |
| a0d0e21e | 3072 | { |
| 6f1401dc DM |
3073 | SV * const arg = POPs; |
| 3074 | const NV value = SvNV_nomg(arg); | |
| 71302fe3 NC |
3075 | if (neg_report) { |
| 3076 | if (op_type == OP_LOG ? (value <= 0.0) : (value < 0.0)) { | |
| 3077 | SET_NUMERIC_STANDARD(); | |
| 3078 | DIE(aTHX_ "Can't take %s of %"NVgf, neg_report, value); | |
| 3079 | } | |
| 3080 | } | |
| 3081 | XPUSHn(func(value)); | |
| a0d0e21e LW |
3082 | RETURN; |
| 3083 | } | |
| 79072805 LW |
3084 | } |
| 3085 | ||
| 56cb0a1c AD |
3086 | /* Support Configure command-line overrides for rand() functions. |
| 3087 | After 5.005, perhaps we should replace this by Configure support | |
| 3088 | for drand48(), random(), or rand(). For 5.005, though, maintain | |
| 3089 | compatibility by calling rand() but allow the user to override it. | |
| 3090 | See INSTALL for details. --Andy Dougherty 15 July 1998 | |
| 3091 | */ | |
| 85ab1d1d JH |
3092 | /* Now it's after 5.005, and Configure supports drand48() and random(), |
| 3093 | in addition to rand(). So the overrides should not be needed any more. | |
| 3094 | --Jarkko Hietaniemi 27 September 1998 | |
| 3095 | */ | |
| 3096 | ||
| 3097 | #ifndef HAS_DRAND48_PROTO | |
| 20ce7b12 | 3098 | extern double drand48 (void); |
| 56cb0a1c AD |
3099 | #endif |
| 3100 | ||
| 79072805 LW |
3101 | PP(pp_rand) |
| 3102 | { | |
| 97aff369 | 3103 | dVAR; dSP; dTARGET; |
| 65202027 | 3104 | NV value; |
| 79072805 LW |
3105 | if (MAXARG < 1) |
| 3106 | value = 1.0; | |
| 3107 | else | |
| 3108 | value = POPn; | |
| 3109 | if (value == 0.0) | |
| 3110 | value = 1.0; | |
| 80252599 | 3111 | if (!PL_srand_called) { |
| 85ab1d1d | 3112 | (void)seedDrand01((Rand_seed_t)seed()); |
| 80252599 | 3113 | PL_srand_called = TRUE; |
| 93dc8474 | 3114 | } |
| 85ab1d1d | 3115 | value *= Drand01(); |
| 79072805 LW |
3116 | XPUSHn(value); |
| 3117 | RETURN; | |
| 3118 | } | |
| 3119 | ||
| 3120 | PP(pp_srand) | |
| 3121 | { | |
| 83832992 | 3122 | dVAR; dSP; dTARGET; |
| 0bd48802 | 3123 | const UV anum = (MAXARG < 1) ? seed() : POPu; |
| 85ab1d1d | 3124 | (void)seedDrand01((Rand_seed_t)anum); |
| 80252599 | 3125 | PL_srand_called = TRUE; |
| da1010ec NC |
3126 | if (anum) |
| 3127 | XPUSHu(anum); | |
| 3128 | else { | |
| 3129 | /* Historically srand always returned true. We can avoid breaking | |
| 3130 | that like this: */ | |
| 3131 | sv_setpvs(TARG, "0 but true"); | |
| 3132 | XPUSHTARG; | |
| 3133 | } | |
| 83832992 | 3134 | RETURN; |
| 79072805 LW |
3135 | } |
| 3136 | ||
| 79072805 LW |
3137 | PP(pp_int) |
| 3138 | { | |
| 6f1401dc DM |
3139 | dVAR; dSP; dTARGET; |
| 3140 | tryAMAGICun_MG(int_amg, AMGf_numeric); | |
| 774d564b | 3141 | { |
| 6f1401dc DM |
3142 | SV * const sv = TOPs; |
| 3143 | const IV iv = SvIV_nomg(sv); | |
| 28e5dec8 JH |
3144 | /* XXX it's arguable that compiler casting to IV might be subtly |
| 3145 | different from modf (for numbers inside (IV_MIN,UV_MAX)) in which | |
| 3146 | else preferring IV has introduced a subtle behaviour change bug. OTOH | |
| 3147 | relying on floating point to be accurate is a bug. */ | |
| 3148 | ||
| c781a409 | 3149 | if (!SvOK(sv)) { |
| 922c4365 | 3150 | SETu(0); |
| c781a409 RD |
3151 | } |
| 3152 | else if (SvIOK(sv)) { | |
| 3153 | if (SvIsUV(sv)) | |
| 6f1401dc | 3154 | SETu(SvUV_nomg(sv)); |
| c781a409 | 3155 | else |
| 28e5dec8 | 3156 | SETi(iv); |
| c781a409 | 3157 | } |
| c781a409 | 3158 | else { |
| 6f1401dc | 3159 | const NV value = SvNV_nomg(sv); |
| 1048ea30 | 3160 | if (value >= 0.0) { |
| 28e5dec8 JH |
3161 | if (value < (NV)UV_MAX + 0.5) { |
| 3162 | SETu(U_V(value)); | |
| 3163 | } else { | |
| 059a1014 | 3164 | SETn(Perl_floor(value)); |
| 28e5dec8 | 3165 | } |
| 1048ea30 | 3166 | } |
| 28e5dec8 JH |
3167 | else { |
| 3168 | if (value > (NV)IV_MIN - 0.5) { | |
| 3169 | SETi(I_V(value)); | |
| 3170 | } else { | |
| 1bbae031 | 3171 | SETn(Perl_ceil(value)); |
| 28e5dec8 JH |
3172 | } |
| 3173 | } | |
| 774d564b | 3174 | } |
| 79072805 | 3175 | } |
| 79072805 LW |
3176 | RETURN; |
| 3177 | } | |
| 3178 | ||
| 463ee0b2 LW |
3179 | PP(pp_abs) |
| 3180 | { | |
| 6f1401dc DM |
3181 | dVAR; dSP; dTARGET; |
| 3182 | tryAMAGICun_MG(abs_amg, AMGf_numeric); | |
| a0d0e21e | 3183 | { |
| 6f1401dc | 3184 | SV * const sv = TOPs; |
| 28e5dec8 | 3185 | /* This will cache the NV value if string isn't actually integer */ |
| 6f1401dc | 3186 | const IV iv = SvIV_nomg(sv); |
| a227d84d | 3187 | |
| 800401ee | 3188 | if (!SvOK(sv)) { |
| 922c4365 | 3189 | SETu(0); |
| 800401ee JH |
3190 | } |
| 3191 | else if (SvIOK(sv)) { | |
| 28e5dec8 | 3192 | /* IVX is precise */ |
| 800401ee | 3193 | if (SvIsUV(sv)) { |
| 6f1401dc | 3194 | SETu(SvUV_nomg(sv)); /* force it to be numeric only */ |
| 28e5dec8 JH |
3195 | } else { |
| 3196 | if (iv >= 0) { | |
| 3197 | SETi(iv); | |
| 3198 | } else { | |
| 3199 | if (iv != IV_MIN) { | |
| 3200 | SETi(-iv); | |
| 3201 | } else { | |
| 3202 | /* 2s complement assumption. Also, not really needed as | |
| 3203 | IV_MIN and -IV_MIN should both be %100...00 and NV-able */ | |
| 3204 | SETu(IV_MIN); | |
| 3205 | } | |
| a227d84d | 3206 | } |
| 28e5dec8 JH |
3207 | } |
| 3208 | } else{ | |
| 6f1401dc | 3209 | const NV value = SvNV_nomg(sv); |
| 774d564b | 3210 | if (value < 0.0) |
| 1b6737cc | 3211 | SETn(-value); |
| a4474c9e DD |
3212 | else |
| 3213 | SETn(value); | |
| 774d564b | 3214 | } |
| a0d0e21e | 3215 | } |
| 774d564b | 3216 | RETURN; |
| 463ee0b2 LW |
3217 | } |
| 3218 | ||
| 79072805 LW |
3219 | PP(pp_oct) |
| 3220 | { | |
| 97aff369 | 3221 | dVAR; dSP; dTARGET; |
| 5c144d81 | 3222 | const char *tmps; |
| 53305cf1 | 3223 | I32 flags = PERL_SCAN_ALLOW_UNDERSCORES; |
| 6f894ead | 3224 | STRLEN len; |
| 53305cf1 NC |
3225 | NV result_nv; |
| 3226 | UV result_uv; | |
| 1b6737cc | 3227 | SV* const sv = POPs; |
| 79072805 | 3228 | |
| 349d4f2f | 3229 | tmps = (SvPV_const(sv, len)); |
| 2bc69dc4 NIS |
3230 | if (DO_UTF8(sv)) { |
| 3231 | /* If Unicode, try to downgrade | |
| 3232 | * If not possible, croak. */ | |
| 1b6737cc | 3233 | SV* const tsv = sv_2mortal(newSVsv(sv)); |
| 2bc69dc4 NIS |
3234 | |
| 3235 | SvUTF8_on(tsv); | |
| 3236 | sv_utf8_downgrade(tsv, FALSE); | |
| 349d4f2f | 3237 | tmps = SvPV_const(tsv, len); |
| 2bc69dc4 | 3238 | } |
| daa2adfd NC |
3239 | if (PL_op->op_type == OP_HEX) |
| 3240 | goto hex; | |
| 3241 | ||
| 6f894ead | 3242 | while (*tmps && len && isSPACE(*tmps)) |
| 53305cf1 | 3243 | tmps++, len--; |
| 9e24b6e2 | 3244 | if (*tmps == '0') |
| 53305cf1 | 3245 | tmps++, len--; |
| a674e8db | 3246 | if (*tmps == 'x' || *tmps == 'X') { |
| daa2adfd | 3247 | hex: |
| 53305cf1 | 3248 | result_uv = grok_hex (tmps, &len, &flags, &result_nv); |
| daa2adfd | 3249 | } |
| a674e8db | 3250 | else if (*tmps == 'b' || *tmps == 'B') |
| 53305cf1 | 3251 | result_uv = grok_bin (tmps, &len, &flags, &result_nv); |
| 464e2e8a | 3252 | else |
| 53305cf1 NC |
3253 | result_uv = grok_oct (tmps, &len, &flags, &result_nv); |
| 3254 | ||
| 3255 | if (flags & PERL_SCAN_GREATER_THAN_UV_MAX) { | |
| 3256 | XPUSHn(result_nv); | |
| 3257 | } | |
| 3258 | else { | |
| 3259 | XPUSHu(result_uv); | |
| 3260 | } | |
| 79072805 LW |
3261 | RETURN; |
| 3262 | } | |
| 3263 | ||
| 3264 | /* String stuff. */ | |
| 3265 | ||
| 3266 | PP(pp_length) | |
| 3267 | { | |
| 97aff369 | 3268 | dVAR; dSP; dTARGET; |
| 0bd48802 | 3269 | SV * const sv = TOPs; |
| a0ed51b3 | 3270 | |
| 656266fc | 3271 | if (SvGAMAGIC(sv)) { |
| 9f621bb0 NC |
3272 | /* For an overloaded or magic scalar, we can't know in advance if |
| 3273 | it's going to be UTF-8 or not. Also, we can't call sv_len_utf8 as | |
| 3274 | it likes to cache the length. Maybe that should be a documented | |
| 3275 | feature of it. | |
| 92331800 NC |
3276 | */ |
| 3277 | STRLEN len; | |
| 9f621bb0 NC |
3278 | const char *const p |
| 3279 | = sv_2pv_flags(sv, &len, | |
| 3280 | SV_UNDEF_RETURNS_NULL|SV_CONST_RETURN|SV_GMAGIC); | |
| 92331800 | 3281 | |
| d88e091f | 3282 | if (!p) { |
| 9407f9c1 DL |
3283 | if (!SvPADTMP(TARG)) { |
| 3284 | sv_setsv(TARG, &PL_sv_undef); | |
| 3285 | SETTARG; | |
| 3286 | } | |
| 3287 | SETs(&PL_sv_undef); | |
| d88e091f | 3288 | } |
| 9f621bb0 | 3289 | else if (DO_UTF8(sv)) { |
| 899be101 | 3290 | SETi(utf8_length((U8*)p, (U8*)p + len)); |
| 92331800 NC |
3291 | } |
| 3292 | else | |
| 3293 | SETi(len); | |
| 656266fc | 3294 | } else if (SvOK(sv)) { |
| 9f621bb0 NC |
3295 | /* Neither magic nor overloaded. */ |
| 3296 | if (DO_UTF8(sv)) | |
| 3297 | SETi(sv_len_utf8(sv)); | |
| 3298 | else | |
| 3299 | SETi(sv_len(sv)); | |
| 656266fc | 3300 | } else { |
| 9407f9c1 DL |
3301 | if (!SvPADTMP(TARG)) { |
| 3302 | sv_setsv_nomg(TARG, &PL_sv_undef); | |
| 3303 | SETTARG; | |
| 3304 | } | |
| 3305 | SETs(&PL_sv_undef); | |
| 92331800 | 3306 | } |
| 79072805 LW |
3307 | RETURN; |
| 3308 | } | |
| 3309 | ||
| 3310 | PP(pp_substr) | |
| 3311 | { | |
| 97aff369 | 3312 | dVAR; dSP; dTARGET; |
| 79072805 | 3313 | SV *sv; |
| 463ee0b2 | 3314 | STRLEN curlen; |
| 9402d6ed | 3315 | STRLEN utf8_curlen; |
| 777f7c56 EB |
3316 | SV * pos_sv; |
| 3317 | IV pos1_iv; | |
| 3318 | int pos1_is_uv; | |
| 3319 | IV pos2_iv; | |
| 3320 | int pos2_is_uv; | |
| 3321 | SV * len_sv; | |
| 3322 | IV len_iv = 0; | |
| 3323 | int len_is_uv = 1; | |
| 050e6362 | 3324 | const I32 lvalue = PL_op->op_flags & OPf_MOD || LVRET; |
| e1ec3a88 | 3325 | const char *tmps; |
| 777f7c56 | 3326 | const IV arybase = CopARYBASE_get(PL_curcop); |
| 9402d6ed | 3327 | SV *repl_sv = NULL; |
| cbbf8932 | 3328 | const char *repl = NULL; |
| 7b8d334a | 3329 | STRLEN repl_len; |
| 050e6362 | 3330 | const int num_args = PL_op->op_private & 7; |
| 13e30c65 | 3331 | bool repl_need_utf8_upgrade = FALSE; |
| 9402d6ed | 3332 | bool repl_is_utf8 = FALSE; |
| 79072805 | 3333 | |
| 78f9721b SM |
3334 | if (num_args > 2) { |
| 3335 | if (num_args > 3) { | |
| 9402d6ed | 3336 | repl_sv = POPs; |
| 83003860 | 3337 | repl = SvPV_const(repl_sv, repl_len); |
| 9402d6ed | 3338 | repl_is_utf8 = DO_UTF8(repl_sv) && SvCUR(repl_sv); |
| 7b8d334a | 3339 | } |
| 777f7c56 EB |
3340 | len_sv = POPs; |
| 3341 | len_iv = SvIV(len_sv); | |
| 3342 | len_is_uv = SvIOK_UV(len_sv); | |
| 5d82c453 | 3343 | } |
| 777f7c56 EB |
3344 | pos_sv = POPs; |
| 3345 | pos1_iv = SvIV(pos_sv); | |
| 3346 | pos1_is_uv = SvIOK_UV(pos_sv); | |
| 79072805 | 3347 | sv = POPs; |
| 849ca7ee | 3348 | PUTBACK; |
| 9402d6ed JH |
3349 | if (repl_sv) { |
| 3350 | if (repl_is_utf8) { | |
| 3351 | if (!DO_UTF8(sv)) | |
| 3352 | sv_utf8_upgrade(sv); | |
| 3353 | } | |
| 13e30c65 JH |
3354 | else if (DO_UTF8(sv)) |
| 3355 | repl_need_utf8_upgrade = TRUE; | |
| 9402d6ed | 3356 | } |
| 5c144d81 | 3357 | tmps = SvPV_const(sv, curlen); |
| 7e2040f0 | 3358 | if (DO_UTF8(sv)) { |
| 9402d6ed JH |
3359 | utf8_curlen = sv_len_utf8(sv); |
| 3360 | if (utf8_curlen == curlen) | |
| 3361 | utf8_curlen = 0; | |
| a0ed51b3 | 3362 | else |
| 9402d6ed | 3363 | curlen = utf8_curlen; |
| a0ed51b3 | 3364 | } |
| d1c2b58a | 3365 | else |
| 9402d6ed | 3366 | utf8_curlen = 0; |
| a0ed51b3 | 3367 | |
| 777f7c56 EB |
3368 | if ( (pos1_is_uv && arybase < 0) || (pos1_iv >= arybase) ) { /* pos >= $[ */ |
| 3369 | UV pos1_uv = pos1_iv-arybase; | |
| 3370 | /* Overflow can occur when $[ < 0 */ | |
| 3371 | if (arybase < 0 && pos1_uv < (UV)pos1_iv) | |
| 1c900557 | 3372 | goto bound_fail; |
| 777f7c56 EB |
3373 | pos1_iv = pos1_uv; |
| 3374 | pos1_is_uv = 1; | |
| 3375 | } | |
| 3376 | else if (pos1_is_uv ? (UV)pos1_iv > 0 : pos1_iv > 0) { | |
| 1c900557 | 3377 | goto bound_fail; /* $[=3; substr($_,2,...) */ |
| 777f7c56 EB |
3378 | } |
| 3379 | else { /* pos < $[ */ | |
| 3380 | if (pos1_iv == 0) { /* $[=1; substr($_,0,...) */ | |
| 3381 | pos1_iv = curlen; | |
| 3382 | pos1_is_uv = 1; | |
| 3383 | } else { | |
| 3384 | if (curlen) { | |
| 3385 | pos1_is_uv = curlen-1 > ~(UV)pos1_iv; | |
| 3386 | pos1_iv += curlen; | |
| 3387 | } | |
| 5d82c453 | 3388 | } |
| 68dc0745 | 3389 | } |
| 777f7c56 EB |
3390 | if (pos1_is_uv || pos1_iv > 0) { |
| 3391 | if ((UV)pos1_iv > curlen) | |
| 1c900557 | 3392 | goto bound_fail; |
| 777f7c56 EB |
3393 | } |
| 3394 | ||
| 3395 | if (num_args > 2) { | |
| 3396 | if (!len_is_uv && len_iv < 0) { | |
| 3397 | pos2_iv = curlen + len_iv; | |
| 3398 | if (curlen) | |
| 3399 | pos2_is_uv = curlen-1 > ~(UV)len_iv; | |
| 3400 | else | |
| 3401 | pos2_is_uv = 0; | |
| 3402 | } else { /* len_iv >= 0 */ | |
| 3403 | if (!pos1_is_uv && pos1_iv < 0) { | |
| 3404 | pos2_iv = pos1_iv + len_iv; | |
| 3405 | pos2_is_uv = (UV)len_iv > (UV)IV_MAX; | |
| 3406 | } else { | |
| 3407 | if ((UV)len_iv > curlen-(UV)pos1_iv) | |
| 3408 | pos2_iv = curlen; | |
| 3409 | else | |
| 3410 | pos2_iv = pos1_iv+len_iv; | |
| 3411 | pos2_is_uv = 1; | |
| 3412 | } | |
| 5d82c453 | 3413 | } |
| 2304df62 | 3414 | } |
| 79072805 | 3415 | else { |
| 777f7c56 EB |
3416 | pos2_iv = curlen; |
| 3417 | pos2_is_uv = 1; | |
| 3418 | } | |
| 3419 | ||
| 3420 | if (!pos2_is_uv && pos2_iv < 0) { | |
| 3421 | if (!pos1_is_uv && pos1_iv < 0) | |
| 1c900557 | 3422 | goto bound_fail; |
| 777f7c56 EB |
3423 | pos2_iv = 0; |
| 3424 | } | |
| 3425 | else if (!pos1_is_uv && pos1_iv < 0) | |
| 3426 | pos1_iv = 0; | |
| 3427 | ||
| 3428 | if ((UV)pos2_iv < (UV)pos1_iv) | |
| 3429 | pos2_iv = pos1_iv; | |
| 3430 | if ((UV)pos2_iv > curlen) | |
| 3431 | pos2_iv = curlen; | |
| 3432 | ||
| 3433 | { | |
| 3434 | /* pos1_iv and pos2_iv both in 0..curlen, so the cast is safe */ | |
| 3435 | const STRLEN pos = (STRLEN)( (UV)pos1_iv ); | |
| 3436 | const STRLEN len = (STRLEN)( (UV)pos2_iv - (UV)pos1_iv ); | |
| 777f7c56 | 3437 | STRLEN byte_len = len; |
| d931b1be NC |
3438 | STRLEN byte_pos = utf8_curlen |
| 3439 | ? sv_pos_u2b_flags(sv, pos, &byte_len, SV_CONST_RETURN) : pos; | |
| 3440 | ||
| 2154eca7 EB |
3441 | if (lvalue && !repl) { |
| 3442 | SV * ret; | |
| 3443 | ||
| 3444 | if (!SvGMAGICAL(sv)) { | |
| 3445 | if (SvROK(sv)) { | |
| 3446 | SvPV_force_nolen(sv); | |
| 3447 | Perl_ck_warner(aTHX_ packWARN(WARN_SUBSTR), | |
| 3448 | "Attempt to use reference as lvalue in substr"); | |
| 3449 | } | |
| 3450 | if (isGV_with_GP(sv)) | |
| 3451 | SvPV_force_nolen(sv); | |
| 3452 | else if (SvOK(sv)) /* is it defined ? */ | |
| 3453 | (void)SvPOK_only_UTF8(sv); | |
| 3454 | else | |
| 3455 | sv_setpvs(sv, ""); /* avoid lexical reincarnation */ | |
| 781e7547 | 3456 | } |
| 2154eca7 EB |
3457 | |
| 3458 | ret = sv_2mortal(newSV_type(SVt_PVLV)); /* Not TARG RT#67838 */ | |
| 3459 | sv_magic(ret, NULL, PERL_MAGIC_substr, NULL, 0); | |
| 3460 | LvTYPE(ret) = 'x'; | |
| 3461 | LvTARG(ret) = SvREFCNT_inc_simple(sv); | |
| 3462 | LvTARGOFF(ret) = pos; | |
| 3463 | LvTARGLEN(ret) = len; | |
| 3464 | ||
| 3465 | SPAGAIN; | |
| 3466 | PUSHs(ret); /* avoid SvSETMAGIC here */ | |
| 3467 | RETURN; | |
| 781e7547 DM |
3468 | } |
| 3469 | ||
| 2154eca7 EB |
3470 | SvTAINTED_off(TARG); /* decontaminate */ |
| 3471 | SvUTF8_off(TARG); /* decontaminate */ | |
| 3472 | ||
| 3473 | tmps += byte_pos; | |
| 777f7c56 | 3474 | sv_setpvn(TARG, tmps, byte_len); |
| 12aa1545 | 3475 | #ifdef USE_LOCALE_COLLATE |
| 14befaf4 | 3476 | sv_unmagic(TARG, PERL_MAGIC_collxfrm); |
| 12aa1545 | 3477 | #endif |
| 9402d6ed | 3478 | if (utf8_curlen) |
| 7f66633b | 3479 | SvUTF8_on(TARG); |
| 2154eca7 | 3480 | |
| f7928d6c | 3481 | if (repl) { |
| 13e30c65 JH |
3482 | SV* repl_sv_copy = NULL; |
| 3483 | ||
| 3484 | if (repl_need_utf8_upgrade) { | |
| 3485 | repl_sv_copy = newSVsv(repl_sv); | |
| 3486 | sv_utf8_upgrade(repl_sv_copy); | |
| 349d4f2f | 3487 | repl = SvPV_const(repl_sv_copy, repl_len); |
| 13e30c65 JH |
3488 | repl_is_utf8 = DO_UTF8(repl_sv_copy) && SvCUR(sv); |
| 3489 | } | |
| 502d9230 VP |
3490 | if (!SvOK(sv)) |
| 3491 | sv_setpvs(sv, ""); | |
| 777f7c56 | 3492 | sv_insert_flags(sv, byte_pos, byte_len, repl, repl_len, 0); |
| 9402d6ed | 3493 | if (repl_is_utf8) |
| f7928d6c | 3494 | SvUTF8_on(sv); |
| ef8d46e8 | 3495 | SvREFCNT_dec(repl_sv_copy); |
| f7928d6c | 3496 | } |
| 79072805 | 3497 | } |
| 849ca7ee | 3498 | SPAGAIN; |
| e27c778f FC |
3499 | SvSETMAGIC(TARG); |
| 3500 | PUSHs(TARG); | |
| 79072805 | 3501 | RETURN; |
| 777f7c56 | 3502 | |
| 1c900557 | 3503 | bound_fail: |
| 777f7c56 EB |
3504 | if (lvalue || repl) |
| 3505 | Perl_croak(aTHX_ "substr outside of string"); | |
| 3506 | Perl_ck_warner(aTHX_ packWARN(WARN_SUBSTR), "substr outside of string"); | |
| 3507 | RETPUSHUNDEF; | |
| 79072805 LW |
3508 | } |
| 3509 | ||
| 3510 | PP(pp_vec) | |
| 3511 | { | |
| 2154eca7 | 3512 | dVAR; dSP; |
| 1b6737cc AL |
3513 | register const IV size = POPi; |
| 3514 | register const IV offset = POPi; | |
| 3515 | register SV * const src = POPs; | |
| 3516 | const I32 lvalue = PL_op->op_flags & OPf_MOD || LVRET; | |
| 2154eca7 | 3517 | SV * ret; |
| a0d0e21e | 3518 | |
| 81e118e0 | 3519 | if (lvalue) { /* it's an lvalue! */ |
| 2154eca7 EB |
3520 | ret = sv_2mortal(newSV_type(SVt_PVLV)); /* Not TARG RT#67838 */ |
| 3521 | sv_magic(ret, NULL, PERL_MAGIC_vec, NULL, 0); | |
| 3522 | LvTYPE(ret) = 'v'; | |
| 3523 | LvTARG(ret) = SvREFCNT_inc_simple(src); | |
| 3524 | LvTARGOFF(ret) = offset; | |
| 3525 | LvTARGLEN(ret) = size; | |
| 3526 | } | |
| 3527 | else { | |
| 3528 | dTARGET; | |
| 3529 | SvTAINTED_off(TARG); /* decontaminate */ | |
| 3530 | ret = TARG; | |
| 79072805 LW |
3531 | } |
| 3532 | ||
| 2154eca7 EB |
3533 | sv_setuv(ret, do_vecget(src, offset, size)); |
| 3534 | PUSHs(ret); | |
| 79072805 LW |
3535 | RETURN; |
| 3536 | } | |
| 3537 | ||
| 3538 | PP(pp_index) | |
| 3539 | { | |
| 97aff369 | 3540 | dVAR; dSP; dTARGET; |
| 79072805 LW |
3541 | SV *big; |
| 3542 | SV *little; | |
| c445ea15 | 3543 | SV *temp = NULL; |
| ad66a58c | 3544 | STRLEN biglen; |
| 2723d216 | 3545 | STRLEN llen = 0; |
| 79072805 LW |
3546 | I32 offset; |
| 3547 | I32 retval; | |
| 73ee8be2 NC |
3548 | const char *big_p; |
| 3549 | const char *little_p; | |
| fc15ae8f | 3550 | const I32 arybase = CopARYBASE_get(PL_curcop); |
| 2f040f7f NC |
3551 | bool big_utf8; |
| 3552 | bool little_utf8; | |
| 2723d216 | 3553 | const bool is_index = PL_op->op_type == OP_INDEX; |
| 79072805 | 3554 | |
| 2723d216 NC |
3555 | if (MAXARG >= 3) { |
| 3556 | /* arybase is in characters, like offset, so combine prior to the | |
| 3557 | UTF-8 to bytes calculation. */ | |
| 79072805 | 3558 | offset = POPi - arybase; |
| 2723d216 | 3559 | } |
| 79072805 LW |
3560 | little = POPs; |
| 3561 | big = POPs; | |
| 73ee8be2 NC |
3562 | big_p = SvPV_const(big, biglen); |
| 3563 | little_p = SvPV_const(little, llen); | |
| 3564 | ||
| e609e586 NC |
3565 | big_utf8 = DO_UTF8(big); |
| 3566 | little_utf8 = DO_UTF8(little); | |
| 3567 | if (big_utf8 ^ little_utf8) { | |
| 3568 | /* One needs to be upgraded. */ | |
| 2f040f7f NC |
3569 | if (little_utf8 && !PL_encoding) { |
| 3570 | /* Well, maybe instead we might be able to downgrade the small | |
| 3571 | string? */ | |
| 1eced8f8 | 3572 | char * const pv = (char*)bytes_from_utf8((U8 *)little_p, &llen, |
| 2f040f7f NC |
3573 | &little_utf8); |
| 3574 | if (little_utf8) { | |
| 3575 | /* If the large string is ISO-8859-1, and it's not possible to | |
| 3576 | convert the small string to ISO-8859-1, then there is no | |
| 3577 | way that it could be found anywhere by index. */ | |
| 3578 | retval = -1; | |
| 3579 | goto fail; | |
| 3580 | } | |
| e609e586 | 3581 | |
| 2f040f7f NC |
3582 | /* At this point, pv is a malloc()ed string. So donate it to temp |
| 3583 | to ensure it will get free()d */ | |
| 3584 | little = temp = newSV(0); | |
| 73ee8be2 NC |
3585 | sv_usepvn(temp, pv, llen); |
| 3586 | little_p = SvPVX(little); | |
| e609e586 | 3587 | } else { |
| 73ee8be2 NC |
3588 | temp = little_utf8 |
| 3589 | ? newSVpvn(big_p, biglen) : newSVpvn(little_p, llen); | |
| 2f040f7f NC |
3590 | |
| 3591 | if (PL_encoding) { | |
| 3592 | sv_recode_to_utf8(temp, PL_encoding); | |
| 3593 | } else { | |
| 3594 | sv_utf8_upgrade(temp); | |
| 3595 | } | |
| 3596 | if (little_utf8) { | |
| 3597 | big = temp; | |
| 3598 | big_utf8 = TRUE; | |
| 73ee8be2 | 3599 | big_p = SvPV_const(big, biglen); |
| 2f040f7f NC |
3600 | } else { |
| 3601 | little = temp; | |
| 73ee8be2 | 3602 | little_p = SvPV_const(little, llen); |
| 2f040f7f | 3603 | } |
| e609e586 NC |
3604 | } |
| 3605 | } | |
| 73ee8be2 NC |
3606 | if (SvGAMAGIC(big)) { |
| 3607 | /* Life just becomes a lot easier if I use a temporary here. | |
| 3608 | Otherwise I need to avoid calls to sv_pos_u2b(), which (dangerously) | |
| 3609 | will trigger magic and overloading again, as will fbm_instr() | |
| 3610 | */ | |
| 59cd0e26 NC |
3611 | big = newSVpvn_flags(big_p, biglen, |
| 3612 | SVs_TEMP | (big_utf8 ? SVf_UTF8 : 0)); | |
| 73ee8be2 NC |
3613 | big_p = SvPVX(big); |
| 3614 | } | |
| e4e44778 | 3615 | if (SvGAMAGIC(little) || (is_index && !SvOK(little))) { |
| 73ee8be2 NC |
3616 | /* index && SvOK() is a hack. fbm_instr() calls SvPV_const, which will |
| 3617 | warn on undef, and we've already triggered a warning with the | |
| 3618 | SvPV_const some lines above. We can't remove that, as we need to | |
| 3619 | call some SvPV to trigger overloading early and find out if the | |
| 3620 | string is UTF-8. | |
| 3621 | This is all getting to messy. The API isn't quite clean enough, | |
| 3622 | because data access has side effects. | |
| 3623 | */ | |
| 59cd0e26 NC |
3624 | little = newSVpvn_flags(little_p, llen, |
| 3625 | SVs_TEMP | (little_utf8 ? SVf_UTF8 : 0)); | |
| 73ee8be2 NC |
3626 | little_p = SvPVX(little); |
| 3627 | } | |
| e609e586 | 3628 | |
| 79072805 | 3629 | if (MAXARG < 3) |
| 2723d216 | 3630 | offset = is_index ? 0 : biglen; |
| a0ed51b3 | 3631 | else { |
| ad66a58c | 3632 | if (big_utf8 && offset > 0) |
| a0ed51b3 | 3633 | sv_pos_u2b(big, &offset, 0); |
| 73ee8be2 NC |
3634 | if (!is_index) |
| 3635 | offset += llen; | |
| a0ed51b3 | 3636 | } |
| 79072805 LW |
3637 | if (offset < 0) |
| 3638 | offset = 0; | |
| ad66a58c NC |
3639 | else if (offset > (I32)biglen) |
| 3640 | offset = biglen; | |
| 73ee8be2 NC |
3641 | if (!(little_p = is_index |
| 3642 | ? fbm_instr((unsigned char*)big_p + offset, | |
| 3643 | (unsigned char*)big_p + biglen, little, 0) | |
| 3644 | : rninstr(big_p, big_p + offset, | |
| 3645 | little_p, little_p + llen))) | |
| a0ed51b3 | 3646 | retval = -1; |
| ad66a58c | 3647 | else { |
| 73ee8be2 |