https://perl5.git.perl.org / perl5.git / blame
| Commit | Line | Data |
|---|---|---|
| a0d0e21e | 1 | /* pp.c |
| 79072805 | 2 | * |
| 1129b882 NC |
3 | * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, |
| 4 | * 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 by Larry Wall and others | |
| 79072805 | 5 | * |
| a0d0e21e LW |
6 | * You may distribute under the terms of either the GNU General Public |
| 7 | * License or the Artistic License, as specified in the README file. | |
| 79072805 | 8 | * |
| a0d0e21e LW |
9 | */ |
| 10 | ||
| 11 | /* | |
| 4ac71550 TC |
12 | * 'It's a big house this, and very peculiar. Always a bit more |
| 13 | * to discover, and no knowing what you'll find round a corner. | |
| 14 | * And Elves, sir!' --Samwise Gamgee | |
| 15 | * | |
| 16 | * [p.225 of _The Lord of the Rings_, II/i: "Many Meetings"] | |
| a0d0e21e | 17 | */ |
| 79072805 | 18 | |
| 166f8a29 DM |
19 | /* This file contains general pp ("push/pop") functions that execute the |
| 20 | * opcodes that make up a perl program. A typical pp function expects to | |
| 21 | * find its arguments on the stack, and usually pushes its results onto | |
| 22 | * the stack, hence the 'pp' terminology. Each OP structure contains | |
| 23 | * a pointer to the relevant pp_foo() function. | |
| 24 | */ | |
| 25 | ||
| 79072805 | 26 | #include "EXTERN.h" |
| 864dbfa3 | 27 | #define PERL_IN_PP_C |
| 79072805 | 28 | #include "perl.h" |
| 77bc9082 | 29 | #include "keywords.h" |
| 79072805 | 30 | |
| a4af207c JH |
31 | #include "reentr.h" |
| 32 | ||
| dfe9444c AD |
33 | /* XXX I can't imagine anyone who doesn't have this actually _needs_ |
| 34 | it, since pid_t is an integral type. | |
| 35 | --AD 2/20/1998 | |
| 36 | */ | |
| 37 | #ifdef NEED_GETPID_PROTO | |
| 38 | extern Pid_t getpid (void); | |
| 8ac85365 NIS |
39 | #endif |
| 40 | ||
| 0630166f SP |
41 | /* |
| 42 | * Some BSDs and Cygwin default to POSIX math instead of IEEE. | |
| 43 | * This switches them over to IEEE. | |
| 44 | */ | |
| 45 | #if defined(LIBM_LIB_VERSION) | |
| 46 | _LIB_VERSION_TYPE _LIB_VERSION = _IEEE_; | |
| 47 | #endif | |
| 48 | ||
| 13017935 SM |
49 | /* variations on pp_null */ |
| 50 | ||
| 93a17b20 LW |
51 | PP(pp_stub) |
| 52 | { | |
| 97aff369 | 53 | dVAR; |
| 39644a26 | 54 | dSP; |
| 54310121 | 55 | if (GIMME_V == G_SCALAR) |
| 3280af22 | 56 | XPUSHs(&PL_sv_undef); |
| 93a17b20 LW |
57 | RETURN; |
| 58 | } | |
| 59 | ||
| 79072805 LW |
60 | /* Pushy stuff. */ |
| 61 | ||
| 93a17b20 LW |
62 | PP(pp_padav) |
| 63 | { | |
| 97aff369 | 64 | dVAR; dSP; dTARGET; |
| 13017935 | 65 | I32 gimme; |
| e190e9b4 | 66 | assert(SvTYPE(TARG) == SVt_PVAV); |
| 533c011a | 67 | if (PL_op->op_private & OPpLVAL_INTRO) |
| a5911867 RGS |
68 | if (!(PL_op->op_private & OPpPAD_STATE)) |
| 69 | SAVECLEARSV(PAD_SVl(PL_op->op_targ)); | |
| 85e6fe83 | 70 | EXTEND(SP, 1); |
| 533c011a | 71 | if (PL_op->op_flags & OPf_REF) { |
| 85e6fe83 | 72 | PUSHs(TARG); |
| 93a17b20 | 73 | RETURN; |
| 78f9721b SM |
74 | } else if (LVRET) { |
| 75 | if (GIMME == G_SCALAR) | |
| 76 | Perl_croak(aTHX_ "Can't return array to lvalue scalar context"); | |
| 77 | PUSHs(TARG); | |
| 78 | RETURN; | |
| 85e6fe83 | 79 | } |
| 13017935 SM |
80 | gimme = GIMME_V; |
| 81 | if (gimme == G_ARRAY) { | |
| 502c6561 | 82 | const I32 maxarg = AvFILL(MUTABLE_AV(TARG)) + 1; |
| 85e6fe83 | 83 | EXTEND(SP, maxarg); |
| 93965878 NIS |
84 | if (SvMAGICAL(TARG)) { |
| 85 | U32 i; | |
| eb160463 | 86 | for (i=0; i < (U32)maxarg; i++) { |
| 502c6561 | 87 | SV * const * const svp = av_fetch(MUTABLE_AV(TARG), i, FALSE); |
| 3280af22 | 88 | SP[i+1] = (svp) ? *svp : &PL_sv_undef; |
| 93965878 NIS |
89 | } |
| 90 | } | |
| 91 | else { | |
| 502c6561 | 92 | Copy(AvARRAY((const AV *)TARG), SP+1, maxarg, SV*); |
| 93965878 | 93 | } |
| 85e6fe83 LW |
94 | SP += maxarg; |
| 95 | } | |
| 13017935 | 96 | else if (gimme == G_SCALAR) { |
| 1b6737cc | 97 | SV* const sv = sv_newmortal(); |
| 502c6561 | 98 | const I32 maxarg = AvFILL(MUTABLE_AV(TARG)) + 1; |
| 85e6fe83 LW |
99 | sv_setiv(sv, maxarg); |
| 100 | PUSHs(sv); | |
| 101 | } | |
| 102 | RETURN; | |
| 93a17b20 LW |
103 | } |
| 104 | ||
| 105 | PP(pp_padhv) | |
| 106 | { | |
| 97aff369 | 107 | dVAR; dSP; dTARGET; |
| 54310121 PP |
108 | I32 gimme; |
| 109 | ||
| e190e9b4 | 110 | assert(SvTYPE(TARG) == SVt_PVHV); |
| 93a17b20 | 111 | XPUSHs(TARG); |
| 533c011a | 112 | if (PL_op->op_private & OPpLVAL_INTRO) |
| a5911867 RGS |
113 | if (!(PL_op->op_private & OPpPAD_STATE)) |
| 114 | SAVECLEARSV(PAD_SVl(PL_op->op_targ)); | |
| 533c011a | 115 | if (PL_op->op_flags & OPf_REF) |
| 93a17b20 | 116 | RETURN; |
| 78f9721b SM |
117 | else if (LVRET) { |
| 118 | if (GIMME == G_SCALAR) | |
| 119 | Perl_croak(aTHX_ "Can't return hash to lvalue scalar context"); | |
| 120 | RETURN; | |
| 121 | } | |
| 54310121 PP |
122 | gimme = GIMME_V; |
| 123 | if (gimme == G_ARRAY) { | |
| cea2e8a9 | 124 | RETURNOP(do_kv()); |
| 85e6fe83 | 125 | } |
| 54310121 | 126 | else if (gimme == G_SCALAR) { |
| 85fbaab2 | 127 | SV* const sv = Perl_hv_scalar(aTHX_ MUTABLE_HV(TARG)); |
| 85e6fe83 | 128 | SETs(sv); |
| 85e6fe83 | 129 | } |
| 54310121 | 130 | RETURN; |
| 93a17b20 LW |
131 | } |
| 132 | ||
| 79072805 LW |
133 | /* Translations. */ |
| 134 | ||
| 4bdf8368 | 135 | static const char S_no_symref_sv[] = |
| def89bff NC |
136 | "Can't use string (\"%" SVf32 "\"%s) as %s ref while \"strict refs\" in use"; |
| 137 | ||
| 79072805 LW |
138 | PP(pp_rv2gv) |
| 139 | { | |
| 97aff369 | 140 | dVAR; dSP; dTOPss; |
| 8ec5e241 | 141 | |
| f64c9ac5 | 142 | if (!isGV(sv) || SvFAKE(sv)) SvGETMAGIC(sv); |
| ed6116ce | 143 | if (SvROK(sv)) { |
| a0d0e21e | 144 | wasref: |
| 93d7320b DM |
145 | if (SvAMAGIC(sv)) { |
| 146 | sv = amagic_deref_call(sv, to_gv_amg); | |
| 147 | SPAGAIN; | |
| 148 | } | |
| ed6116ce | 149 | sv = SvRV(sv); |
| b1dadf13 | 150 | if (SvTYPE(sv) == SVt_PVIO) { |
| 159b6efe | 151 | GV * const gv = MUTABLE_GV(sv_newmortal()); |
| b1dadf13 | 152 | gv_init(gv, 0, "", 0, 0); |
| a45c7426 | 153 | GvIOp(gv) = MUTABLE_IO(sv); |
| b37c2d43 | 154 | SvREFCNT_inc_void_NN(sv); |
| ad64d0ec | 155 | sv = MUTABLE_SV(gv); |
| ef54e1a4 | 156 | } |
| 6e592b3a | 157 | else if (!isGV_with_GP(sv)) |
| cea2e8a9 | 158 | DIE(aTHX_ "Not a GLOB reference"); |
| 79072805 LW |
159 | } |
| 160 | else { | |
| 6e592b3a | 161 | if (!isGV_with_GP(sv)) { |
| afd1915d | 162 | if (!SvOK(sv) && sv != &PL_sv_undef) { |
| b13b2135 | 163 | /* If this is a 'my' scalar and flag is set then vivify |
| 853846ea | 164 | * NI-S 1999/05/07 |
| b13b2135 | 165 | */ |
| ac53db4c | 166 | if (SvREADONLY(sv)) |
| 6ad8f254 | 167 | Perl_croak_no_modify(aTHX); |
| 1d8d4d2a | 168 | if (PL_op->op_private & OPpDEREF) { |
| 2c8ac474 GS |
169 | GV *gv; |
| 170 | if (cUNOP->op_targ) { | |
| 171 | STRLEN len; | |
| 0bd48802 AL |
172 | SV * const namesv = PAD_SV(cUNOP->op_targ); |
| 173 | const char * const name = SvPV(namesv, len); | |
| 159b6efe | 174 | gv = MUTABLE_GV(newSV(0)); |
| 2c8ac474 GS |
175 | gv_init(gv, CopSTASH(PL_curcop), name, len, 0); |
| 176 | } | |
| 177 | else { | |
| 0bd48802 | 178 | const char * const name = CopSTASHPV(PL_curcop); |
| 2c8ac474 | 179 | gv = newGVgen(name); |
| 1d8d4d2a | 180 | } |
| 43230e26 | 181 | prepare_SV_for_RV(sv); |
| ad64d0ec | 182 | SvRV_set(sv, MUTABLE_SV(gv)); |
| 853846ea | 183 | SvROK_on(sv); |
| 1d8d4d2a | 184 | SvSETMAGIC(sv); |
| 853846ea | 185 | goto wasref; |
| 2c8ac474 | 186 | } |
| 533c011a NIS |
187 | if (PL_op->op_flags & OPf_REF || |
| 188 | PL_op->op_private & HINT_STRICT_REFS) | |
| cea2e8a9 | 189 | DIE(aTHX_ PL_no_usym, "a symbol"); |
| 599cee73 | 190 | if (ckWARN(WARN_UNINITIALIZED)) |
| 29489e7c | 191 | report_uninit(sv); |
| a0d0e21e LW |
192 | RETSETUNDEF; |
| 193 | } | |
| 35cd451c GS |
194 | if ((PL_op->op_flags & OPf_SPECIAL) && |
| 195 | !(PL_op->op_flags & OPf_MOD)) | |
| 196 | { | |
| ad64d0ec | 197 | SV * const temp = MUTABLE_SV(gv_fetchsv(sv, 0, SVt_PVGV)); |
| 7a5fd60d NC |
198 | if (!temp |
| 199 | && (!is_gv_magical_sv(sv,0) | |
| ad64d0ec NC |
200 | || !(sv = MUTABLE_SV(gv_fetchsv(sv, GV_ADD, |
| 201 | SVt_PVGV))))) { | |
| 35cd451c | 202 | RETSETUNDEF; |
| c9d5ac95 | 203 | } |
| 7a5fd60d | 204 | sv = temp; |
| 35cd451c GS |
205 | } |
| 206 | else { | |
| 207 | if (PL_op->op_private & HINT_STRICT_REFS) | |
| 10b53e54 | 208 | DIE(aTHX_ S_no_symref_sv, sv, (SvPOK(sv) && SvCUR(sv)>32 ? "..." : ""), "a symbol"); |
| e26df76a NC |
209 | if ((PL_op->op_private & (OPpLVAL_INTRO|OPpDONT_INIT_GV)) |
| 210 | == OPpDONT_INIT_GV) { | |
| 211 | /* We are the target of a coderef assignment. Return | |
| 212 | the scalar unchanged, and let pp_sasssign deal with | |
| 213 | things. */ | |
| 214 | RETURN; | |
| 215 | } | |
| ad64d0ec | 216 | sv = MUTABLE_SV(gv_fetchsv(sv, GV_ADD, SVt_PVGV)); |
| 35cd451c | 217 | } |
| 2acc3314 FC |
218 | /* FAKE globs in the symbol table cause weird bugs (#77810) */ |
| 219 | if (sv) SvFAKE_off(sv); | |
| 93a17b20 | 220 | } |
| 79072805 | 221 | } |
| 2acc3314 FC |
222 | if (sv && SvFAKE(sv)) { |
| 223 | SV *newsv = sv_newmortal(); | |
| 5cf4b255 | 224 | sv_setsv_flags(newsv, sv, 0); |
| 2acc3314 | 225 | SvFAKE_off(newsv); |
| d8906c05 | 226 | sv = newsv; |
| 2acc3314 | 227 | } |
| d8906c05 FC |
228 | if (PL_op->op_private & OPpLVAL_INTRO) |
| 229 | save_gp(MUTABLE_GV(sv), !(PL_op->op_flags & OPf_SPECIAL)); | |
| 230 | SETs(sv); | |
| 79072805 LW |
231 | RETURN; |
| 232 | } | |
| 233 | ||
| dc3c76f8 NC |
234 | /* Helper function for pp_rv2sv and pp_rv2av */ |
| 235 | GV * | |
| fe9845cc RB |
236 | Perl_softref2xv(pTHX_ SV *const sv, const char *const what, |
| 237 | const svtype type, SV ***spp) | |
| dc3c76f8 NC |
238 | { |
| 239 | dVAR; | |
| 240 | GV *gv; | |
| 241 | ||
| 7918f24d NC |
242 | PERL_ARGS_ASSERT_SOFTREF2XV; |
| 243 | ||
| dc3c76f8 NC |
244 | if (PL_op->op_private & HINT_STRICT_REFS) { |
| 245 | if (SvOK(sv)) | |
| 10b53e54 | 246 | Perl_die(aTHX_ S_no_symref_sv, sv, (SvPOK(sv) && SvCUR(sv)>32 ? "..." : ""), what); |
| dc3c76f8 NC |
247 | else |
| 248 | Perl_die(aTHX_ PL_no_usym, what); | |
| 249 | } | |
| 250 | if (!SvOK(sv)) { | |
| 251 | if (PL_op->op_flags & OPf_REF) | |
| 252 | Perl_die(aTHX_ PL_no_usym, what); | |
| 253 | if (ckWARN(WARN_UNINITIALIZED)) | |
| 254 | report_uninit(sv); | |
| 255 | if (type != SVt_PV && GIMME_V == G_ARRAY) { | |
| 256 | (*spp)--; | |
| 257 | return NULL; | |
| 258 | } | |
| 259 | **spp = &PL_sv_undef; | |
| 260 | return NULL; | |
| 261 | } | |
| 262 | if ((PL_op->op_flags & OPf_SPECIAL) && | |
| 263 | !(PL_op->op_flags & OPf_MOD)) | |
| 264 | { | |
| 81e3fc25 | 265 | gv = gv_fetchsv(sv, 0, type); |
| dc3c76f8 NC |
266 | if (!gv |
| 267 | && (!is_gv_magical_sv(sv,0) | |
| 81e3fc25 | 268 | || !(gv = gv_fetchsv(sv, GV_ADD, type)))) |
| dc3c76f8 NC |
269 | { |
| 270 | **spp = &PL_sv_undef; | |
| 271 | return NULL; | |
| 272 | } | |
| 273 | } | |
| 274 | else { | |
| 81e3fc25 | 275 | gv = gv_fetchsv(sv, GV_ADD, type); |
| dc3c76f8 NC |
276 | } |
| 277 | return gv; | |
| 278 | } | |
| 279 | ||
| 79072805 LW |
280 | PP(pp_rv2sv) |
| 281 | { | |
| 97aff369 | 282 | dVAR; dSP; dTOPss; |
| c445ea15 | 283 | GV *gv = NULL; |
| 79072805 | 284 | |
| 0824d667 DM |
285 | if (!(PL_op->op_private & OPpDEREFed)) |
| 286 | SvGETMAGIC(sv); | |
| ed6116ce | 287 | if (SvROK(sv)) { |
| 93d7320b DM |
288 | if (SvAMAGIC(sv)) { |
| 289 | sv = amagic_deref_call(sv, to_sv_amg); | |
| 290 | SPAGAIN; | |
| 291 | } | |
| f5284f61 | 292 | |
| ed6116ce | 293 | sv = SvRV(sv); |
| 79072805 LW |
294 | switch (SvTYPE(sv)) { |
| 295 | case SVt_PVAV: | |
| 296 | case SVt_PVHV: | |
| 297 | case SVt_PVCV: | |
| cbae9b9f YST |
298 | case SVt_PVFM: |
| 299 | case SVt_PVIO: | |
| cea2e8a9 | 300 | DIE(aTHX_ "Not a SCALAR reference"); |
| 42d0e0b7 | 301 | default: NOOP; |
| 79072805 LW |
302 | } |
| 303 | } | |
| 304 | else { | |
| 159b6efe | 305 | gv = MUTABLE_GV(sv); |
| 748a9306 | 306 | |
| 6e592b3a | 307 | if (!isGV_with_GP(gv)) { |
| dc3c76f8 NC |
308 | gv = Perl_softref2xv(aTHX_ sv, "a SCALAR", SVt_PV, &sp); |
| 309 | if (!gv) | |
| 310 | RETURN; | |
| 463ee0b2 | 311 | } |
| 29c711a3 | 312 | sv = GvSVn(gv); |
| a0d0e21e | 313 | } |
| 533c011a | 314 | if (PL_op->op_flags & OPf_MOD) { |
| 82d03984 RGS |
315 | if (PL_op->op_private & OPpLVAL_INTRO) { |
| 316 | if (cUNOP->op_first->op_type == OP_NULL) | |
| 159b6efe | 317 | sv = save_scalar(MUTABLE_GV(TOPs)); |
| 82d03984 RGS |
318 | else if (gv) |
| 319 | sv = save_scalar(gv); | |
| 320 | else | |
| f1f66076 | 321 | Perl_croak(aTHX_ "%s", PL_no_localize_ref); |
| 82d03984 | 322 | } |
| 533c011a NIS |
323 | else if (PL_op->op_private & OPpDEREF) |
| 324 | vivify_ref(sv, PL_op->op_private & OPpDEREF); | |
| 79072805 | 325 | } |
| a0d0e21e | 326 | SETs(sv); |
| 79072805 LW |
327 | RETURN; |
| 328 | } | |
| 329 | ||
| 330 | PP(pp_av2arylen) | |
| 331 | { | |
| 97aff369 | 332 | dVAR; dSP; |
| 502c6561 | 333 | AV * const av = MUTABLE_AV(TOPs); |
| 02d85cc3 EB |
334 | const I32 lvalue = PL_op->op_flags & OPf_MOD || LVRET; |
| 335 | if (lvalue) { | |
| 336 | SV ** const sv = Perl_av_arylen_p(aTHX_ MUTABLE_AV(av)); | |
| 337 | if (!*sv) { | |
| 338 | *sv = newSV_type(SVt_PVMG); | |
| 339 | sv_magic(*sv, MUTABLE_SV(av), PERL_MAGIC_arylen, NULL, 0); | |
| 340 | } | |
| 341 | SETs(*sv); | |
| 342 | } else { | |
| 343 | SETs(sv_2mortal(newSViv( | |
| 344 | AvFILL(MUTABLE_AV(av)) + CopARYBASE_get(PL_curcop) | |
| 345 | ))); | |
| 79072805 | 346 | } |
| 79072805 LW |
347 | RETURN; |
| 348 | } | |
| 349 | ||
| a0d0e21e LW |
350 | PP(pp_pos) |
| 351 | { | |
| 2154eca7 | 352 | dVAR; dSP; dPOPss; |
| 8ec5e241 | 353 | |
| 78f9721b | 354 | if (PL_op->op_flags & OPf_MOD || LVRET) { |
| 2154eca7 EB |
355 | SV * const ret = sv_2mortal(newSV_type(SVt_PVLV)); /* Not TARG RT#67838 */ |
| 356 | sv_magic(ret, NULL, PERL_MAGIC_pos, NULL, 0); | |
| 357 | LvTYPE(ret) = '.'; | |
| 358 | LvTARG(ret) = SvREFCNT_inc_simple(sv); | |
| 359 | PUSHs(ret); /* no SvSETMAGIC */ | |
| a0d0e21e LW |
360 | RETURN; |
| 361 | } | |
| 362 | else { | |
| a0d0e21e | 363 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) { |
| 1b6737cc | 364 | const MAGIC * const mg = mg_find(sv, PERL_MAGIC_regex_global); |
| 565764a8 | 365 | if (mg && mg->mg_len >= 0) { |
| 2154eca7 | 366 | dTARGET; |
| a0ed51b3 | 367 | I32 i = mg->mg_len; |
| 7e2040f0 | 368 | if (DO_UTF8(sv)) |
| a0ed51b3 | 369 | sv_pos_b2u(sv, &i); |
| fc15ae8f | 370 | PUSHi(i + CopARYBASE_get(PL_curcop)); |
| a0d0e21e LW |
371 | RETURN; |
| 372 | } | |
| 373 | } | |
| 374 | RETPUSHUNDEF; | |
| 375 | } | |
| 376 | } | |
| 377 | ||
| 79072805 LW |
378 | PP(pp_rv2cv) |
| 379 | { | |
| 97aff369 | 380 | dVAR; dSP; |
| 79072805 | 381 | GV *gv; |
| 1eced8f8 | 382 | HV *stash_unused; |
| c445ea15 AL |
383 | const I32 flags = (PL_op->op_flags & OPf_SPECIAL) |
| 384 | ? 0 | |
| 385 | : ((PL_op->op_private & (OPpLVAL_INTRO|OPpMAY_RETURN_CONSTANT)) == OPpMAY_RETURN_CONSTANT) | |
| 386 | ? GV_ADD|GV_NOEXPAND | |
| 387 | : GV_ADD; | |
| 4633a7c4 LW |
388 | /* We usually try to add a non-existent subroutine in case of AUTOLOAD. */ |
| 389 | /* (But not in defined().) */ | |
| e26df76a | 390 | |
| 1eced8f8 | 391 | CV *cv = sv_2cv(TOPs, &stash_unused, &gv, flags); |
| 07055b4c CS |
392 | if (cv) { |
| 393 | if (CvCLONE(cv)) | |
| ad64d0ec | 394 | cv = MUTABLE_CV(sv_2mortal(MUTABLE_SV(cv_clone(cv)))); |
| d32f2495 SC |
395 | if ((PL_op->op_private & OPpLVAL_INTRO)) { |
| 396 | if (gv && GvCV(gv) == cv && (gv = gv_autoload4(GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv), FALSE))) | |
| 397 | cv = GvCV(gv); | |
| 398 | if (!CvLVALUE(cv)) | |
| 399 | DIE(aTHX_ "Can't modify non-lvalue subroutine call"); | |
| 400 | } | |
| 07055b4c | 401 | } |
| e26df76a | 402 | else if ((flags == (GV_ADD|GV_NOEXPAND)) && gv && SvROK(gv)) { |
| ea726b52 | 403 | cv = MUTABLE_CV(gv); |
| e26df76a | 404 | } |
| 07055b4c | 405 | else |
| ea726b52 | 406 | cv = MUTABLE_CV(&PL_sv_undef); |
| ad64d0ec | 407 | SETs(MUTABLE_SV(cv)); |
| 79072805 LW |
408 | RETURN; |
| 409 | } | |
| 410 | ||
| c07a80fd PP |
411 | PP(pp_prototype) |
| 412 | { | |
| 97aff369 | 413 | dVAR; dSP; |
| c07a80fd PP |
414 | CV *cv; |
| 415 | HV *stash; | |
| 416 | GV *gv; | |
| fabdb6c0 | 417 | SV *ret = &PL_sv_undef; |
| c07a80fd | 418 | |
| b6c543e3 | 419 | if (SvPOK(TOPs) && SvCUR(TOPs) >= 7) { |
| e3f73d4e | 420 | const char * s = SvPVX_const(TOPs); |
| b6c543e3 | 421 | if (strnEQ(s, "CORE::", 6)) { |
| 5458a98a | 422 | const int code = keyword(s + 6, SvCUR(TOPs) - 6, 1); |
| b6c543e3 IZ |
423 | if (code < 0) { /* Overridable. */ |
| 424 | #define MAX_ARGS_OP ((sizeof(I32) - 1) * 2) | |
| 59b085e1 | 425 | int i = 0, n = 0, seen_question = 0, defgv = 0; |
| b6c543e3 IZ |
426 | I32 oa; |
| 427 | char str[ MAX_ARGS_OP * 2 + 2 ]; /* One ';', one '\0' */ | |
| 428 | ||
| bdf1bb36 | 429 | if (code == -KEY_chop || code == -KEY_chomp |
| f23102e2 | 430 | || code == -KEY_exec || code == -KEY_system) |
| 77bc9082 | 431 | goto set; |
| d116c547 | 432 | if (code == -KEY_mkdir) { |
| 84bafc02 | 433 | ret = newSVpvs_flags("_;$", SVs_TEMP); |
| d116c547 RGS |
434 | goto set; |
| 435 | } | |
| 7c8178a1 | 436 | if (code == -KEY_keys || code == -KEY_values || code == -KEY_each) { |
| cba5a3b0 DG |
437 | ret = newSVpvs_flags("+", SVs_TEMP); |
| 438 | goto set; | |
| 439 | } | |
| 440 | if (code == -KEY_push || code == -KEY_unshift) { | |
| 441 | ret = newSVpvs_flags("+@", SVs_TEMP); | |
| 442 | goto set; | |
| 443 | } | |
| 444 | if (code == -KEY_pop || code == -KEY_shift) { | |
| 445 | ret = newSVpvs_flags(";+", SVs_TEMP); | |
| 446 | goto set; | |
| 447 | } | |
| 448 | if (code == -KEY_splice) { | |
| 449 | ret = newSVpvs_flags("+;$$@", SVs_TEMP); | |
| 1db4d195 FC |
450 | goto set; |
| 451 | } | |
| 452 | if (code == -KEY_tied || code == -KEY_untie) { | |
| 453 | ret = newSVpvs_flags("\\[$@%*]", SVs_TEMP); | |
| 454 | goto set; | |
| 455 | } | |
| 456 | if (code == -KEY_tie) { | |
| 457 | ret = newSVpvs_flags("\\[$@%*]$@", SVs_TEMP); | |
| 7c8178a1 RGS |
458 | goto set; |
| 459 | } | |
| e3f73d4e RGS |
460 | if (code == -KEY_readpipe) { |
| 461 | s = "CORE::backtick"; | |
| 462 | } | |
| b6c543e3 | 463 | while (i < MAXO) { /* The slow way. */ |
| 22c35a8c GS |
464 | if (strEQ(s + 6, PL_op_name[i]) |
| 465 | || strEQ(s + 6, PL_op_desc[i])) | |
| 466 | { | |
| b6c543e3 | 467 | goto found; |
| 22c35a8c | 468 | } |
| b6c543e3 IZ |
469 | i++; |
| 470 | } | |
| 471 | goto nonesuch; /* Should not happen... */ | |
| 472 | found: | |
| 59b085e1 | 473 | defgv = PL_opargs[i] & OA_DEFGV; |
| 22c35a8c | 474 | oa = PL_opargs[i] >> OASHIFT; |
| b6c543e3 | 475 | while (oa) { |
| 59b085e1 | 476 | if (oa & OA_OPTIONAL && !seen_question && !defgv) { |
| b6c543e3 IZ |
477 | seen_question = 1; |
| 478 | str[n++] = ';'; | |
| ef54e1a4 | 479 | } |
| b13b2135 | 480 | if ((oa & (OA_OPTIONAL - 1)) >= OA_AVREF |
| 6e97e420 SC |
481 | && (oa & (OA_OPTIONAL - 1)) <= OA_SCALARREF |
| 482 | /* But globs are already references (kinda) */ | |
| 483 | && (oa & (OA_OPTIONAL - 1)) != OA_FILEREF | |
| 484 | ) { | |
| b6c543e3 IZ |
485 | str[n++] = '\\'; |
| 486 | } | |
| b6c543e3 IZ |
487 | str[n++] = ("?$@@%&*$")[oa & (OA_OPTIONAL - 1)]; |
| 488 | oa = oa >> 4; | |
| 489 | } | |
| 59b085e1 RGS |
490 | if (defgv && str[n - 1] == '$') |
| 491 | str[n - 1] = '_'; | |
| b6c543e3 | 492 | str[n++] = '\0'; |
| 59cd0e26 | 493 | ret = newSVpvn_flags(str, n - 1, SVs_TEMP); |
| ef54e1a4 JH |
494 | } |
| 495 | else if (code) /* Non-Overridable */ | |
| b6c543e3 IZ |
496 | goto set; |
| 497 | else { /* None such */ | |
| 498 | nonesuch: | |
| d470f89e | 499 | DIE(aTHX_ "Can't find an opnumber for \"%s\"", s+6); |
| b6c543e3 IZ |
500 | } |
| 501 | } | |
| 502 | } | |
| f2c0649b | 503 | cv = sv_2cv(TOPs, &stash, &gv, 0); |
| 5f05dabc | 504 | if (cv && SvPOK(cv)) |
| 59cd0e26 | 505 | ret = newSVpvn_flags(SvPVX_const(cv), SvCUR(cv), SVs_TEMP); |
| b6c543e3 | 506 | set: |
| c07a80fd PP |
507 | SETs(ret); |
| 508 | RETURN; | |
| 509 | } | |
| 510 | ||
| a0d0e21e LW |
511 | PP(pp_anoncode) |
| 512 | { | |
| 97aff369 | 513 | dVAR; dSP; |
| ea726b52 | 514 | CV *cv = MUTABLE_CV(PAD_SV(PL_op->op_targ)); |
| a5f75d66 | 515 | if (CvCLONE(cv)) |
| ad64d0ec | 516 | cv = MUTABLE_CV(sv_2mortal(MUTABLE_SV(cv_clone(cv)))); |
| 5f05dabc | 517 | EXTEND(SP,1); |
| ad64d0ec | 518 | PUSHs(MUTABLE_SV(cv)); |
| a0d0e21e LW |
519 | RETURN; |
| 520 | } | |
| 521 | ||
| 522 | PP(pp_srefgen) | |
| 79072805 | 523 | { |
| 97aff369 | 524 | dVAR; dSP; |
| 71be2cbc | 525 | *SP = refto(*SP); |
| 79072805 | 526 | RETURN; |
| 8ec5e241 | 527 | } |
| a0d0e21e LW |
528 | |
| 529 | PP(pp_refgen) | |
| 530 | { | |
| 97aff369 | 531 | dVAR; dSP; dMARK; |
| a0d0e21e | 532 | if (GIMME != G_ARRAY) { |
| 5f0b1d4e GS |
533 | if (++MARK <= SP) |
| 534 | *MARK = *SP; | |
| 535 | else | |
| 3280af22 | 536 | *MARK = &PL_sv_undef; |
| 5f0b1d4e GS |
537 | *MARK = refto(*MARK); |
| 538 | SP = MARK; | |
| 539 | RETURN; | |
| a0d0e21e | 540 | } |
| bbce6d69 | 541 | EXTEND_MORTAL(SP - MARK); |
| 71be2cbc PP |
542 | while (++MARK <= SP) |
| 543 | *MARK = refto(*MARK); | |
| a0d0e21e | 544 | RETURN; |
| 79072805 LW |
545 | } |
| 546 | ||
| 76e3520e | 547 | STATIC SV* |
| cea2e8a9 | 548 | S_refto(pTHX_ SV *sv) |
| 71be2cbc | 549 | { |
| 97aff369 | 550 | dVAR; |
| 71be2cbc PP |
551 | SV* rv; |
| 552 | ||
| 7918f24d NC |
553 | PERL_ARGS_ASSERT_REFTO; |
| 554 | ||
| 71be2cbc PP |
555 | if (SvTYPE(sv) == SVt_PVLV && LvTYPE(sv) == 'y') { |
| 556 | if (LvTARGLEN(sv)) | |
| 68dc0745 PP |
557 | vivify_defelem(sv); |
| 558 | if (!(sv = LvTARG(sv))) | |
| 3280af22 | 559 | sv = &PL_sv_undef; |
| 0dd88869 | 560 | else |
| b37c2d43 | 561 | SvREFCNT_inc_void_NN(sv); |
| 71be2cbc | 562 | } |
| d8b46c1b | 563 | else if (SvTYPE(sv) == SVt_PVAV) { |
| 502c6561 NC |
564 | if (!AvREAL((const AV *)sv) && AvREIFY((const AV *)sv)) |
| 565 | av_reify(MUTABLE_AV(sv)); | |
| d8b46c1b | 566 | SvTEMP_off(sv); |
| b37c2d43 | 567 | SvREFCNT_inc_void_NN(sv); |
| d8b46c1b | 568 | } |
| f2933f5f DM |
569 | else if (SvPADTMP(sv) && !IS_PADGV(sv)) |
| 570 | sv = newSVsv(sv); | |
| 71be2cbc PP |
571 | else { |
| 572 | SvTEMP_off(sv); | |
| b37c2d43 | 573 | SvREFCNT_inc_void_NN(sv); |
| 71be2cbc PP |
574 | } |
| 575 | rv = sv_newmortal(); | |
| 4df7f6af | 576 | sv_upgrade(rv, SVt_IV); |
| b162af07 | 577 | SvRV_set(rv, sv); |
| 71be2cbc PP |
578 | SvROK_on(rv); |
| 579 | return rv; | |
| 580 | } | |
| 581 | ||
| 79072805 LW |
582 | PP(pp_ref) |
| 583 | { | |
| 97aff369 | 584 | dVAR; dSP; dTARGET; |
| e1ec3a88 | 585 | const char *pv; |
| 1b6737cc | 586 | SV * const sv = POPs; |
| f12c7020 | 587 | |
| 5b295bef RD |
588 | if (sv) |
| 589 | SvGETMAGIC(sv); | |
| f12c7020 | 590 | |
| a0d0e21e | 591 | if (!sv || !SvROK(sv)) |
| 4633a7c4 | 592 | RETPUSHNO; |
| 79072805 | 593 | |
| cba0b539 FR |
594 | pv = sv_reftype(SvRV(sv),TRUE); |
| 595 | PUSHp(pv, strlen(pv)); | |
| 79072805 LW |
596 | RETURN; |
| 597 | } | |
| 598 | ||
| 599 | PP(pp_bless) | |
| 600 | { | |
| 97aff369 | 601 | dVAR; dSP; |
| 463ee0b2 | 602 | HV *stash; |
| 79072805 | 603 | |
| 463ee0b2 | 604 | if (MAXARG == 1) |
| 11faa288 | 605 | stash = CopSTASH(PL_curcop); |
| 7b8d334a | 606 | else { |
| 1b6737cc | 607 | SV * const ssv = POPs; |
| 7b8d334a | 608 | STRLEN len; |
| e1ec3a88 | 609 | const char *ptr; |
| 81689caa | 610 | |
| 016a42f3 | 611 | if (ssv && !SvGMAGICAL(ssv) && !SvAMAGIC(ssv) && SvROK(ssv)) |
| 81689caa | 612 | Perl_croak(aTHX_ "Attempt to bless into a reference"); |
| 5c144d81 | 613 | ptr = SvPV_const(ssv,len); |
| a2a5de95 NC |
614 | if (len == 0) |
| 615 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), | |
| 616 | "Explicit blessing to '' (assuming package main)"); | |
| da51bb9b | 617 | stash = gv_stashpvn(ptr, len, GV_ADD); |
| 7b8d334a | 618 | } |
| a0d0e21e | 619 | |
| 5d3fdfeb | 620 | (void)sv_bless(TOPs, stash); |
| 79072805 LW |
621 | RETURN; |
| 622 | } | |
| 623 | ||
| fb73857a PP |
624 | PP(pp_gelem) |
| 625 | { | |
| 97aff369 | 626 | dVAR; dSP; |
| b13b2135 | 627 | |
| 1b6737cc AL |
628 | SV *sv = POPs; |
| 629 | const char * const elem = SvPV_nolen_const(sv); | |
| 159b6efe | 630 | GV * const gv = MUTABLE_GV(POPs); |
| c445ea15 | 631 | SV * tmpRef = NULL; |
| 1b6737cc | 632 | |
| c445ea15 | 633 | sv = NULL; |
| c4ba80c3 NC |
634 | if (elem) { |
| 635 | /* elem will always be NUL terminated. */ | |
| 1b6737cc | 636 | const char * const second_letter = elem + 1; |
| c4ba80c3 NC |
637 | switch (*elem) { |
| 638 | case 'A': | |
| 1b6737cc | 639 | if (strEQ(second_letter, "RRAY")) |
| ad64d0ec | 640 | tmpRef = MUTABLE_SV(GvAV(gv)); |
| c4ba80c3 NC |
641 | break; |
| 642 | case 'C': | |
| 1b6737cc | 643 | if (strEQ(second_letter, "ODE")) |
| ad64d0ec | 644 | tmpRef = MUTABLE_SV(GvCVu(gv)); |
| c4ba80c3 NC |
645 | break; |
| 646 | case 'F': | |
| 1b6737cc | 647 | if (strEQ(second_letter, "ILEHANDLE")) { |
| c4ba80c3 NC |
648 | /* finally deprecated in 5.8.0 */ |
| 649 | deprecate("*glob{FILEHANDLE}"); | |
| ad64d0ec | 650 | tmpRef = MUTABLE_SV(GvIOp(gv)); |
| c4ba80c3 NC |
651 | } |
| 652 | else | |
| 1b6737cc | 653 | if (strEQ(second_letter, "ORMAT")) |
| ad64d0ec | 654 | tmpRef = MUTABLE_SV(GvFORM(gv)); |
| c4ba80c3 NC |
655 | break; |
| 656 | case 'G': | |
| 1b6737cc | 657 | if (strEQ(second_letter, "LOB")) |
| ad64d0ec | 658 | tmpRef = MUTABLE_SV(gv); |
| c4ba80c3 NC |
659 | break; |
| 660 | case 'H': | |
| 1b6737cc | 661 | if (strEQ(second_letter, "ASH")) |
| ad64d0ec | 662 | tmpRef = MUTABLE_SV(GvHV(gv)); |
| c4ba80c3 NC |
663 | break; |
| 664 | case 'I': | |
| 1b6737cc | 665 | if (*second_letter == 'O' && !elem[2]) |
| ad64d0ec | 666 | tmpRef = MUTABLE_SV(GvIOp(gv)); |
| c4ba80c3 NC |
667 | break; |
| 668 | case 'N': | |
| 1b6737cc | 669 | if (strEQ(second_letter, "AME")) |
| a663657d | 670 | sv = newSVhek(GvNAME_HEK(gv)); |
| c4ba80c3 NC |
671 | break; |
| 672 | case 'P': | |
| 1b6737cc | 673 | if (strEQ(second_letter, "ACKAGE")) { |
| 7fa3a4ab NC |
674 | const HV * const stash = GvSTASH(gv); |
| 675 | const HEK * const hek = stash ? HvNAME_HEK(stash) : NULL; | |
| 396482e1 | 676 | sv = hek ? newSVhek(hek) : newSVpvs("__ANON__"); |
| c4ba80c3 NC |
677 | } |
| 678 | break; | |
| 679 | case 'S': | |
| 1b6737cc | 680 | if (strEQ(second_letter, "CALAR")) |
| f9d52e31 | 681 | tmpRef = GvSVn(gv); |
| c4ba80c3 | 682 | break; |
| 39b99f21 | 683 | } |
| fb73857a | 684 | } |
| 76e3520e GS |
685 | if (tmpRef) |
| 686 | sv = newRV(tmpRef); | |
| fb73857a PP |
687 | if (sv) |
| 688 | sv_2mortal(sv); | |
| 689 | else | |
| 3280af22 | 690 | sv = &PL_sv_undef; |
| fb73857a PP |
691 | XPUSHs(sv); |
| 692 | RETURN; | |
| 693 | } | |
| 694 | ||
| a0d0e21e | 695 | /* Pattern matching */ |
| 79072805 | 696 | |
| a0d0e21e | 697 | PP(pp_study) |
| 79072805 | 698 | { |
| 97aff369 | 699 | dVAR; dSP; dPOPss; |
| a0d0e21e LW |
700 | register unsigned char *s; |
| 701 | register I32 pos; | |
| 702 | register I32 ch; | |
| 703 | register I32 *sfirst; | |
| 704 | register I32 *snext; | |
| a0d0e21e LW |
705 | STRLEN len; |
| 706 | ||
| 3280af22 | 707 | if (sv == PL_lastscream) { |
| 1e422769 PP |
708 | if (SvSCREAM(sv)) |
| 709 | RETPUSHYES; | |
| 710 | } | |
| a4f4e906 NC |
711 | s = (unsigned char*)(SvPV(sv, len)); |
| 712 | pos = len; | |
| c9b9f909 | 713 | if (pos <= 0 || !SvPOK(sv) || SvUTF8(sv)) { |
| a4f4e906 NC |
714 | /* No point in studying a zero length string, and not safe to study |
| 715 | anything that doesn't appear to be a simple scalar (and hence might | |
| 716 | change between now and when the regexp engine runs without our set | |
| bd473224 | 717 | magic ever running) such as a reference to an object with overloaded |
| a4f4e906 NC |
718 | stringification. */ |
| 719 | RETPUSHNO; | |
| 720 | } | |
| 721 | ||
| 722 | if (PL_lastscream) { | |
| 723 | SvSCREAM_off(PL_lastscream); | |
| 724 | SvREFCNT_dec(PL_lastscream); | |
| c07a80fd | 725 | } |
| b37c2d43 | 726 | PL_lastscream = SvREFCNT_inc_simple(sv); |
| 1e422769 PP |
727 | |
| 728 | s = (unsigned char*)(SvPV(sv, len)); | |
| 729 | pos = len; | |
| 730 | if (pos <= 0) | |
| 731 | RETPUSHNO; | |
| 3280af22 NIS |
732 | if (pos > PL_maxscream) { |
| 733 | if (PL_maxscream < 0) { | |
| 734 | PL_maxscream = pos + 80; | |
| a02a5408 JC |
735 | Newx(PL_screamfirst, 256, I32); |
| 736 | Newx(PL_screamnext, PL_maxscream, I32); | |
| 79072805 LW |
737 | } |
| 738 | else { | |
| 3280af22 NIS |
739 | PL_maxscream = pos + pos / 4; |
| 740 | Renew(PL_screamnext, PL_maxscream, I32); | |
| 79072805 | 741 | } |
| 79072805 | 742 | } |
| a0d0e21e | 743 | |
| 3280af22 NIS |
744 | sfirst = PL_screamfirst; |
| 745 | snext = PL_screamnext; | |
| a0d0e21e LW |
746 | |
| 747 | if (!sfirst || !snext) | |
| cea2e8a9 | 748 | DIE(aTHX_ "do_study: out of memory"); |
| a0d0e21e LW |
749 | |
| 750 | for (ch = 256; ch; --ch) | |
| 751 | *sfirst++ = -1; | |
| 752 | sfirst -= 256; | |
| 753 | ||
| 754 | while (--pos >= 0) { | |
| 1b6737cc | 755 | register const I32 ch = s[pos]; |
| a0d0e21e LW |
756 | if (sfirst[ch] >= 0) |
| 757 | snext[pos] = sfirst[ch] - pos; | |
| 758 | else | |
| 759 | snext[pos] = -pos; | |
| 760 | sfirst[ch] = pos; | |
| 79072805 LW |
761 | } |
| 762 | ||
| c07a80fd | 763 | SvSCREAM_on(sv); |
| 14befaf4 | 764 | /* piggyback on m//g magic */ |
| c445ea15 | 765 | sv_magic(sv, NULL, PERL_MAGIC_regex_global, NULL, 0); |
| 1e422769 | 766 | RETPUSHYES; |
| 79072805 LW |
767 | } |
| 768 | ||
| a0d0e21e | 769 | PP(pp_trans) |
| 79072805 | 770 | { |
| 97aff369 | 771 | dVAR; dSP; dTARG; |
| a0d0e21e LW |
772 | SV *sv; |
| 773 | ||
| 533c011a | 774 | if (PL_op->op_flags & OPf_STACKED) |
| a0d0e21e | 775 | sv = POPs; |
| 59f00321 RGS |
776 | else if (PL_op->op_private & OPpTARGET_MY) |
| 777 | sv = GETTARGET; | |
| 79072805 | 778 | else { |
| 54b9620d | 779 | sv = DEFSV; |
| a0d0e21e | 780 | EXTEND(SP,1); |
| 79072805 | 781 | } |
| adbc6bb1 | 782 | TARG = sv_newmortal(); |
| bb16bae8 FC |
783 | if(PL_op->op_type == OP_TRANSR) { |
| 784 | SV * const newsv = newSVsv(sv); | |
| 785 | do_trans(newsv); | |
| 786 | mPUSHs(newsv); | |
| 787 | } | |
| 788 | else PUSHi(do_trans(sv)); | |
| a0d0e21e | 789 | RETURN; |
| 79072805 LW |
790 | } |
| 791 | ||
| a0d0e21e | 792 | /* Lvalue operators. */ |
| 79072805 | 793 | |
| a0d0e21e LW |
794 | PP(pp_schop) |
| 795 | { | |
| 97aff369 | 796 | dVAR; dSP; dTARGET; |
| fc51b17c | 797 | do_chomp(TARG, TOPs, FALSE); |
| a0d0e21e LW |
798 | SETTARG; |
| 799 | RETURN; | |
| 79072805 LW |
800 | } |
| 801 | ||
| a0d0e21e | 802 | PP(pp_chop) |
| 79072805 | 803 | { |
| 97aff369 | 804 | dVAR; dSP; dMARK; dTARGET; dORIGMARK; |
| 2ec6af5f | 805 | while (MARK < SP) |
| fc51b17c | 806 | do_chomp(TARG, *++MARK, FALSE); |
| 2ec6af5f | 807 | SP = ORIGMARK; |
| b59aed67 | 808 | XPUSHTARG; |
| a0d0e21e | 809 | RETURN; |
| 79072805 LW |
810 | } |
| 811 | ||
| a0d0e21e | 812 | PP(pp_schomp) |
| 79072805 | 813 | { |
| 97aff369 | 814 | dVAR; dSP; dTARGET; |
| 2f9970be | 815 | sv_setiv(TARG, 0); |
| fc51b17c | 816 | do_chomp(TARG, TOPs, TRUE); |
| 2f9970be | 817 | SETs(TARG); |
| a0d0e21e | 818 | RETURN; |
| 79072805 LW |
819 | } |
| 820 | ||
| a0d0e21e | 821 | PP(pp_chomp) |
| 79072805 | 822 | { |
| 20cf1f79 | 823 | dVAR; dSP; dMARK; dTARGET; dORIGMARK; |
| 8ec5e241 | 824 | |
| 2f9970be | 825 | sv_setiv(TARG, 0); |
| 20cf1f79 | 826 | while (MARK < SP) |
| fc51b17c | 827 | do_chomp(TARG, *++MARK, TRUE); |
| 20cf1f79 NC |
828 | SP = ORIGMARK; |
| 829 | XPUSHTARG; | |
| a0d0e21e | 830 | RETURN; |
| 79072805 LW |
831 | } |
| 832 | ||
| a0d0e21e LW |
833 | PP(pp_undef) |
| 834 | { | |
| 97aff369 | 835 | dVAR; dSP; |
| a0d0e21e LW |
836 | SV *sv; |
| 837 | ||
| 533c011a | 838 | if (!PL_op->op_private) { |
| 774d564b | 839 | EXTEND(SP, 1); |
| a0d0e21e | 840 | RETPUSHUNDEF; |
| 774d564b | 841 | } |
| 79072805 | 842 | |
| a0d0e21e LW |
843 | sv = POPs; |
| 844 | if (!sv) | |
| 845 | RETPUSHUNDEF; | |
| 85e6fe83 | 846 | |
| 765f542d | 847 | SV_CHECK_THINKFIRST_COW_DROP(sv); |
| 85e6fe83 | 848 | |
| a0d0e21e LW |
849 | switch (SvTYPE(sv)) { |
| 850 | case SVt_NULL: | |
| 851 | break; | |
| 852 | case SVt_PVAV: | |
| 502c6561 | 853 | av_undef(MUTABLE_AV(sv)); |
| a0d0e21e LW |
854 | break; |
| 855 | case SVt_PVHV: | |
| 85fbaab2 | 856 | hv_undef(MUTABLE_HV(sv)); |
| a0d0e21e LW |
857 | break; |
| 858 | case SVt_PVCV: | |
| a2a5de95 NC |
859 | if (cv_const_sv((const CV *)sv)) |
| 860 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), "Constant subroutine %s undefined", | |
| 861 | CvANON((const CV *)sv) ? "(anonymous)" | |
| 862 | : GvENAME(CvGV((const CV *)sv))); | |
| 5f66b61c | 863 | /* FALLTHROUGH */ |
| 9607fc9c | 864 | case SVt_PVFM: |
| 6fc92669 GS |
865 | { |
| 866 | /* let user-undef'd sub keep its identity */ | |
| ea726b52 NC |
867 | GV* const gv = CvGV((const CV *)sv); |
| 868 | cv_undef(MUTABLE_CV(sv)); | |
| b3f91e91 | 869 | CvGV_set(MUTABLE_CV(sv), gv); |
| 6fc92669 | 870 | } |
| a0d0e21e | 871 | break; |
| 8e07c86e | 872 | case SVt_PVGV: |
| 6e592b3a | 873 | if (SvFAKE(sv)) { |
| 3280af22 | 874 | SvSetMagicSV(sv, &PL_sv_undef); |
| 6e592b3a BM |
875 | break; |
| 876 | } | |
| 877 | else if (isGV_with_GP(sv)) { | |
| 20408e3c | 878 | GP *gp; |
| dd69841b BB |
879 | HV *stash; |
| 880 | ||
| dd69841b | 881 | /* undef *Pkg::meth_name ... */ |
| e530fb81 FC |
882 | bool method_changed |
| 883 | = GvCVu((const GV *)sv) && (stash = GvSTASH((const GV *)sv)) | |
| 884 | && HvENAME_get(stash); | |
| 885 | /* undef *Foo:: */ | |
| 886 | if((stash = GvHV((const GV *)sv))) { | |
| 887 | if(HvENAME_get(stash)) | |
| 888 | SvREFCNT_inc_simple_void_NN(sv_2mortal((SV *)stash)); | |
| 889 | else stash = NULL; | |
| 890 | } | |
| dd69841b | 891 | |
| 159b6efe | 892 | gp_free(MUTABLE_GV(sv)); |
| a02a5408 | 893 | Newxz(gp, 1, GP); |
| 20408e3c | 894 | GvGP(sv) = gp_ref(gp); |
| 561b68a9 | 895 | GvSV(sv) = newSV(0); |
| 57843af0 | 896 | GvLINE(sv) = CopLINE(PL_curcop); |
| 159b6efe | 897 | GvEGV(sv) = MUTABLE_GV(sv); |
| 20408e3c | 898 | GvMULTI_on(sv); |
| e530fb81 FC |
899 | |
| 900 | if(stash) | |
| afdbe55d | 901 | mro_package_moved(NULL, stash, (const GV *)sv, 0); |
| e530fb81 FC |
902 | stash = NULL; |
| 903 | /* undef *Foo::ISA */ | |
| 904 | if( strEQ(GvNAME((const GV *)sv), "ISA") | |
| 905 | && (stash = GvSTASH((const GV *)sv)) | |
| 906 | && (method_changed || HvENAME(stash)) ) | |
| 907 | mro_isa_changed_in(stash); | |
| 908 | else if(method_changed) | |
| 909 | mro_method_changed_in( | |
| da9043f5 | 910 | GvSTASH((const GV *)sv) |
| e530fb81 FC |
911 | ); |
| 912 | ||
| 6e592b3a | 913 | break; |
| 20408e3c | 914 | } |
| 6e592b3a | 915 | /* FALL THROUGH */ |
| a0d0e21e | 916 | default: |
| b15aece3 | 917 | if (SvTYPE(sv) >= SVt_PV && SvPVX_const(sv) && SvLEN(sv)) { |
| 8bd4d4c5 | 918 | SvPV_free(sv); |
| c445ea15 | 919 | SvPV_set(sv, NULL); |
| 4633a7c4 | 920 | SvLEN_set(sv, 0); |
| a0d0e21e | 921 | } |
| 0c34ef67 | 922 | SvOK_off(sv); |
| 4633a7c4 | 923 | SvSETMAGIC(sv); |
| 79072805 | 924 | } |
| a0d0e21e LW |
925 | |
| 926 | RETPUSHUNDEF; | |
| 79072805 LW |
927 | } |
| 928 | ||
| a0d0e21e | 929 | PP(pp_predec) |
| 79072805 | 930 | { |
| 97aff369 | 931 | dVAR; dSP; |
| 6e592b3a | 932 | if (SvTYPE(TOPs) >= SVt_PVAV || isGV_with_GP(TOPs)) |
| 6ad8f254 | 933 | Perl_croak_no_modify(aTHX); |
| 3510b4a1 NC |
934 | if (!SvREADONLY(TOPs) && SvIOK_notUV(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) |
| 935 | && SvIVX(TOPs) != IV_MIN) | |
| 55497cff | 936 | { |
| 45977657 | 937 | SvIV_set(TOPs, SvIVX(TOPs) - 1); |
| 55497cff | 938 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
| 748a9306 LW |
939 | } |
| 940 | else | |
| 941 | sv_dec(TOPs); | |
| a0d0e21e LW |
942 | SvSETMAGIC(TOPs); |
| 943 | return NORMAL; | |
| 944 | } | |
| 79072805 | 945 | |
| a0d0e21e LW |
946 | PP(pp_postinc) |
| 947 | { | |
| 97aff369 | 948 | dVAR; dSP; dTARGET; |
| 6e592b3a | 949 | if (SvTYPE(TOPs) >= SVt_PVAV || isGV_with_GP(TOPs)) |
| 6ad8f254 | 950 | Perl_croak_no_modify(aTHX); |
| 7dcb9b98 DM |
951 | if (SvROK(TOPs)) |
| 952 | TARG = sv_newmortal(); | |
| a0d0e21e | 953 | sv_setsv(TARG, TOPs); |
| 3510b4a1 NC |
954 | if (!SvREADONLY(TOPs) && SvIOK_notUV(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) |
| 955 | && SvIVX(TOPs) != IV_MAX) | |
| 55497cff | 956 | { |
| 45977657 | 957 | SvIV_set(TOPs, SvIVX(TOPs) + 1); |
| 55497cff | 958 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
| 748a9306 LW |
959 | } |
| 960 | else | |
| 6f1401dc | 961 | sv_inc_nomg(TOPs); |
| a0d0e21e | 962 | SvSETMAGIC(TOPs); |
| 1e54a23f | 963 | /* special case for undef: see thread at 2003-03/msg00536.html in archive */ |
| a0d0e21e LW |
964 | if (!SvOK(TARG)) |
| 965 | sv_setiv(TARG, 0); | |
| 966 | SETs(TARG); | |
| 967 | return NORMAL; | |
| 968 | } | |
| 79072805 | 969 | |
| a0d0e21e LW |
970 | PP(pp_postdec) |
| 971 | { | |
| 97aff369 | 972 | dVAR; dSP; dTARGET; |
| 6e592b3a | 973 | if (SvTYPE(TOPs) >= SVt_PVAV || isGV_with_GP(TOPs)) |
| 6ad8f254 | 974 | Perl_croak_no_modify(aTHX); |
| 7dcb9b98 DM |
975 | if (SvROK(TOPs)) |
| 976 | TARG = sv_newmortal(); | |
| a0d0e21e | 977 | sv_setsv(TARG, TOPs); |
| 3510b4a1 NC |
978 | if (!SvREADONLY(TOPs) && SvIOK_notUV(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) |
| 979 | && SvIVX(TOPs) != IV_MIN) | |
| 55497cff | 980 | { |
| 45977657 | 981 | SvIV_set(TOPs, SvIVX(TOPs) - 1); |
| 55497cff | 982 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
| 748a9306 LW |
983 | } |
| 984 | else | |
| 6f1401dc | 985 | sv_dec_nomg(TOPs); |
| a0d0e21e LW |
986 | SvSETMAGIC(TOPs); |
| 987 | SETs(TARG); | |
| 988 | return NORMAL; | |
| 989 | } | |
| 79072805 | 990 | |
| a0d0e21e LW |
991 | /* Ordinary operators. */ |
| 992 | ||
| 993 | PP(pp_pow) | |
| 994 | { | |
| 800401ee | 995 | dVAR; dSP; dATARGET; SV *svl, *svr; |
| 58d76dfd | 996 | #ifdef PERL_PRESERVE_IVUV |
| 52a96ae6 HS |
997 | bool is_int = 0; |
| 998 | #endif | |
| 6f1401dc DM |
999 | tryAMAGICbin_MG(pow_amg, AMGf_assign|AMGf_numeric); |
| 1000 | svr = TOPs; | |
| 1001 | svl = TOPm1s; | |
| 52a96ae6 HS |
1002 | #ifdef PERL_PRESERVE_IVUV |
| 1003 | /* For integer to integer power, we do the calculation by hand wherever | |
| 1004 | we're sure it is safe; otherwise we call pow() and try to convert to | |
| 1005 | integer afterwards. */ | |
| 58d76dfd | 1006 | { |
| 6f1401dc | 1007 | SvIV_please_nomg(svr); |
| 800401ee | 1008 | if (SvIOK(svr)) { |
| 6f1401dc | 1009 | SvIV_please_nomg(svl); |
| 800401ee | 1010 | if (SvIOK(svl)) { |
| 900658e3 PF |
1011 | UV power; |
| 1012 | bool baseuok; | |
| 1013 | UV baseuv; | |
| 1014 | ||
| 800401ee JH |
1015 | if (SvUOK(svr)) { |
| 1016 | power = SvUVX(svr); | |
| 900658e3 | 1017 | } else { |
| 800401ee | 1018 | const IV iv = SvIVX(svr); |
| 900658e3 PF |
1019 | if (iv >= 0) { |
| 1020 | power = iv; | |
| 1021 | } else { | |
| 1022 | goto float_it; /* Can't do negative powers this way. */ | |
| 1023 | } | |
| 1024 | } | |
| 1025 | ||
| 800401ee | 1026 | baseuok = SvUOK(svl); |
| 900658e3 | 1027 | if (baseuok) { |
| 800401ee | 1028 | baseuv = SvUVX(svl); |
| 900658e3 | 1029 | } else { |
| 800401ee | 1030 | const IV iv = SvIVX(svl); |
| 900658e3 PF |
1031 | if (iv >= 0) { |
| 1032 | baseuv = iv; | |
| 1033 | baseuok = TRUE; /* effectively it's a UV now */ | |
| 1034 | } else { | |
| 1035 | baseuv = -iv; /* abs, baseuok == false records sign */ | |
| 1036 | } | |
| 1037 | } | |
| 52a96ae6 HS |
1038 | /* now we have integer ** positive integer. */ |
| 1039 | is_int = 1; | |
| 1040 | ||
| 1041 | /* foo & (foo - 1) is zero only for a power of 2. */ | |
| 58d76dfd | 1042 | if (!(baseuv & (baseuv - 1))) { |
| 52a96ae6 | 1043 | /* We are raising power-of-2 to a positive integer. |
| 58d76dfd JH |
1044 | The logic here will work for any base (even non-integer |
| 1045 | bases) but it can be less accurate than | |
| 1046 | pow (base,power) or exp (power * log (base)) when the | |
| 1047 | intermediate values start to spill out of the mantissa. | |
| 1048 | With powers of 2 we know this can't happen. | |
| 1049 | And powers of 2 are the favourite thing for perl | |
| 1050 | programmers to notice ** not doing what they mean. */ | |
| 1051 | NV result = 1.0; | |
| 1052 | NV base = baseuok ? baseuv : -(NV)baseuv; | |
| 900658e3 PF |
1053 | |
| 1054 | if (power & 1) { | |
| 1055 | result *= base; | |
| 1056 | } | |
| 1057 | while (power >>= 1) { | |
| 1058 | base *= base; | |
| 1059 | if (power & 1) { | |
| 1060 | result *= base; | |
| 1061 | } | |
| 1062 | } | |
| 58d76dfd JH |
1063 | SP--; |
| 1064 | SETn( result ); | |
| 6f1401dc | 1065 | SvIV_please_nomg(svr); |
| 58d76dfd | 1066 | RETURN; |
| 52a96ae6 HS |
1067 | } else { |
| 1068 | register unsigned int highbit = 8 * sizeof(UV); | |
| 900658e3 PF |
1069 | register unsigned int diff = 8 * sizeof(UV); |
| 1070 | while (diff >>= 1) { | |
| 1071 | highbit -= diff; | |
| 1072 | if (baseuv >> highbit) { | |
| 1073 | highbit += diff; | |
| 1074 | } | |
| 52a96ae6 HS |
1075 | } |
| 1076 | /* we now have baseuv < 2 ** highbit */ | |
| 1077 | if (power * highbit <= 8 * sizeof(UV)) { | |
| 1078 | /* result will definitely fit in UV, so use UV math | |
| 1079 | on same algorithm as above */ | |
| 1080 | register UV result = 1; | |
| 1081 | register UV base = baseuv; | |
| f2338a2e | 1082 | const bool odd_power = cBOOL(power & 1); |
| 900658e3 PF |
1083 | if (odd_power) { |
| 1084 | result *= base; | |
| 1085 | } | |
| 1086 | while (power >>= 1) { | |
| 1087 | base *= base; | |
| 1088 | if (power & 1) { | |
| 52a96ae6 | 1089 | result *= base; |
| 52a96ae6 HS |
1090 | } |
| 1091 | } | |
| 1092 | SP--; | |
| 0615a994 | 1093 | if (baseuok || !odd_power) |
| 52a96ae6 HS |
1094 | /* answer is positive */ |
| 1095 | SETu( result ); | |
| 1096 | else if (result <= (UV)IV_MAX) | |
| 1097 | /* answer negative, fits in IV */ | |
| 1098 | SETi( -(IV)result ); | |
| 1099 | else if (result == (UV)IV_MIN) | |
| 1100 | /* 2's complement assumption: special case IV_MIN */ | |
| 1101 | SETi( IV_MIN ); | |
| 1102 | else | |
| 1103 | /* answer negative, doesn't fit */ | |
| 1104 | SETn( -(NV)result ); | |
| 1105 | RETURN; | |
| 1106 | } | |
| 1107 | } | |
| 1108 | } | |
| 1109 | } | |
| 58d76dfd | 1110 | } |
| 52a96ae6 | 1111 | float_it: |
| 58d76dfd | 1112 | #endif |
| a0d0e21e | 1113 | { |
| 6f1401dc DM |
1114 | NV right = SvNV_nomg(svr); |
| 1115 | NV left = SvNV_nomg(svl); | |
| 4efa5a16 | 1116 | (void)POPs; |
| 3aaeb624 JA |
1117 | |
| 1118 | #if defined(USE_LONG_DOUBLE) && defined(HAS_AIX_POWL_NEG_BASE_BUG) | |
| 1119 | /* | |
| 1120 | We are building perl with long double support and are on an AIX OS | |
| 1121 | afflicted with a powl() function that wrongly returns NaNQ for any | |
| 1122 | negative base. This was reported to IBM as PMR #23047-379 on | |
| 1123 | 03/06/2006. The problem exists in at least the following versions | |
| 1124 | of AIX and the libm fileset, and no doubt others as well: | |
| 1125 | ||
| 1126 | AIX 4.3.3-ML10 bos.adt.libm 4.3.3.50 | |
| 1127 | AIX 5.1.0-ML04 bos.adt.libm 5.1.0.29 | |
| 1128 | AIX 5.2.0 bos.adt.libm 5.2.0.85 | |
| 1129 | ||
| 1130 | So, until IBM fixes powl(), we provide the following workaround to | |
| 1131 | handle the problem ourselves. Our logic is as follows: for | |
| 1132 | negative bases (left), we use fmod(right, 2) to check if the | |
| 1133 | exponent is an odd or even integer: | |
| 1134 | ||
| 1135 | - if odd, powl(left, right) == -powl(-left, right) | |
| 1136 | - if even, powl(left, right) == powl(-left, right) | |
| 1137 | ||
| 1138 | If the exponent is not an integer, the result is rightly NaNQ, so | |
| 1139 | we just return that (as NV_NAN). | |
| 1140 | */ | |
| 1141 | ||
| 1142 | if (left < 0.0) { | |
| 1143 | NV mod2 = Perl_fmod( right, 2.0 ); | |
| 1144 | if (mod2 == 1.0 || mod2 == -1.0) { /* odd integer */ | |
| 1145 | SETn( -Perl_pow( -left, right) ); | |
| 1146 | } else if (mod2 == 0.0) { /* even integer */ | |
| 1147 | SETn( Perl_pow( -left, right) ); | |
| 1148 | } else { /* fractional power */ | |
| 1149 | SETn( NV_NAN ); | |
| 1150 | } | |
| 1151 | } else { | |
| 1152 | SETn( Perl_pow( left, right) ); | |
| 1153 | } | |
| 1154 | #else | |
| 52a96ae6 | 1155 | SETn( Perl_pow( left, right) ); |
| 3aaeb624 JA |
1156 | #endif /* HAS_AIX_POWL_NEG_BASE_BUG */ |
| 1157 | ||
| 52a96ae6 HS |
1158 | #ifdef PERL_PRESERVE_IVUV |
| 1159 | if (is_int) | |
| 6f1401dc | 1160 | SvIV_please_nomg(svr); |
| 52a96ae6 HS |
1161 | #endif |
| 1162 | RETURN; | |
| 93a17b20 | 1163 | } |
| a0d0e21e LW |
1164 | } |
| 1165 | ||
| 1166 | PP(pp_multiply) | |
| 1167 | { | |
| 800401ee | 1168 | dVAR; dSP; dATARGET; SV *svl, *svr; |
| 6f1401dc DM |
1169 | tryAMAGICbin_MG(mult_amg, AMGf_assign|AMGf_numeric); |
| 1170 | svr = TOPs; | |
| 1171 | svl = TOPm1s; | |
| 28e5dec8 | 1172 | #ifdef PERL_PRESERVE_IVUV |
| 6f1401dc | 1173 | SvIV_please_nomg(svr); |
| 800401ee | 1174 | if (SvIOK(svr)) { |
| 28e5dec8 JH |
1175 | /* Unless the left argument is integer in range we are going to have to |
| 1176 | use NV maths. Hence only attempt to coerce the right argument if | |
| 1177 | we know the left is integer. */ | |
| 1178 | /* Left operand is defined, so is it IV? */ | |
| 6f1401dc | 1179 | SvIV_please_nomg(svl); |
| 800401ee JH |
1180 | if (SvIOK(svl)) { |
| 1181 | bool auvok = SvUOK(svl); | |
| 1182 | bool buvok = SvUOK(svr); | |
| 28e5dec8 JH |
1183 | const UV topmask = (~ (UV)0) << (4 * sizeof (UV)); |
| 1184 | const UV botmask = ~((~ (UV)0) << (4 * sizeof (UV))); | |
| 1185 | UV alow; | |
| 1186 | UV ahigh; | |
| 1187 | UV blow; | |
| 1188 | UV bhigh; | |
| 1189 | ||
| 1190 | if (auvok) { | |
| 800401ee | 1191 | alow = SvUVX(svl); |
| 28e5dec8 | 1192 | } else { |
| 800401ee | 1193 | const IV aiv = SvIVX(svl); |
| 28e5dec8 JH |
1194 | if (aiv >= 0) { |
| 1195 | alow = aiv; | |
| 1196 | auvok = TRUE; /* effectively it's a UV now */ | |
| 1197 | } else { | |
| 1198 | alow = -aiv; /* abs, auvok == false records sign */ | |
| 1199 | } | |
| 1200 | } | |
| 1201 | if (buvok) { | |
| 800401ee | 1202 | blow = SvUVX(svr); |
| 28e5dec8 | 1203 | } else { |
| 800401ee | 1204 | const IV biv = SvIVX(svr); |
| 28e5dec8 JH |
1205 | if (biv >= 0) { |
| 1206 | blow = biv; | |
| 1207 | buvok = TRUE; /* effectively it's a UV now */ | |
| 1208 | } else { | |
| 1209 | blow = -biv; /* abs, buvok == false records sign */ | |
| 1210 | } | |
| 1211 | } | |
| 1212 | ||
| 1213 | /* If this does sign extension on unsigned it's time for plan B */ | |
| 1214 | ahigh = alow >> (4 * sizeof (UV)); | |
| 1215 | alow &= botmask; | |
| 1216 | bhigh = blow >> (4 * sizeof (UV)); | |
| 1217 | blow &= botmask; | |
| 1218 | if (ahigh && bhigh) { | |
| 6f207bd3 | 1219 | NOOP; |
| 28e5dec8 JH |
1220 | /* eg 32 bit is at least 0x10000 * 0x10000 == 0x100000000 |
| 1221 | which is overflow. Drop to NVs below. */ | |
| 1222 | } else if (!ahigh && !bhigh) { | |
| 1223 | /* eg 32 bit is at most 0xFFFF * 0xFFFF == 0xFFFE0001 | |
| 1224 | so the unsigned multiply cannot overflow. */ | |
| c445ea15 | 1225 | const UV product = alow * blow; |
| 28e5dec8 JH |
1226 | if (auvok == buvok) { |
| 1227 | /* -ve * -ve or +ve * +ve gives a +ve result. */ | |
| 1228 | SP--; | |
| 1229 | SETu( product ); | |
| 1230 | RETURN; | |
| 1231 | } else if (product <= (UV)IV_MIN) { | |
| 1232 | /* 2s complement assumption that (UV)-IV_MIN is correct. */ | |
| 1233 | /* -ve result, which could overflow an IV */ | |
| 1234 | SP--; | |
| 25716404 | 1235 | SETi( -(IV)product ); |
| 28e5dec8 JH |
1236 | RETURN; |
| 1237 | } /* else drop to NVs below. */ | |
| 1238 | } else { | |
| 1239 | /* One operand is large, 1 small */ | |
| 1240 | UV product_middle; | |
| 1241 | if (bhigh) { | |
| 1242 | /* swap the operands */ | |
| 1243 | ahigh = bhigh; | |
| 1244 | bhigh = blow; /* bhigh now the temp var for the swap */ | |
| 1245 | blow = alow; | |
| 1246 | alow = bhigh; | |
| 1247 | } | |
| 1248 | /* now, ((ahigh * blow) << half_UV_len) + (alow * blow) | |
| 1249 | multiplies can't overflow. shift can, add can, -ve can. */ | |
| 1250 | product_middle = ahigh * blow; | |
| 1251 | if (!(product_middle & topmask)) { | |
| 1252 | /* OK, (ahigh * blow) won't lose bits when we shift it. */ | |
| 1253 | UV product_low; | |
| 1254 | product_middle <<= (4 * sizeof (UV)); | |
| 1255 | product_low = alow * blow; | |
| 1256 | ||
| 1257 | /* as for pp_add, UV + something mustn't get smaller. | |
| 1258 | IIRC ANSI mandates this wrapping *behaviour* for | |
| 1259 | unsigned whatever the actual representation*/ | |
| 1260 | product_low += product_middle; | |
| 1261 | if (product_low >= product_middle) { | |
| 1262 | /* didn't overflow */ | |
| 1263 | if (auvok == buvok) { | |
| 1264 | /* -ve * -ve or +ve * +ve gives a +ve result. */ | |
| 1265 | SP--; | |
| 1266 | SETu( product_low ); | |
| 1267 | RETURN; | |
| 1268 | } else if (product_low <= (UV)IV_MIN) { | |
| 1269 | /* 2s complement assumption again */ | |
| 1270 | /* -ve result, which could overflow an IV */ | |
| 1271 | SP--; | |
| 25716404 | 1272 | SETi( -(IV)product_low ); |
| 28e5dec8 JH |
1273 | RETURN; |
| 1274 | } /* else drop to NVs below. */ | |
| 1275 | } | |
| 1276 | } /* product_middle too large */ | |
| 1277 | } /* ahigh && bhigh */ | |
| 800401ee JH |
1278 | } /* SvIOK(svl) */ |
| 1279 | } /* SvIOK(svr) */ | |
| 28e5dec8 | 1280 | #endif |
| a0d0e21e | 1281 | { |
| 6f1401dc DM |
1282 | NV right = SvNV_nomg(svr); |
| 1283 | NV left = SvNV_nomg(svl); | |
| 4efa5a16 | 1284 | (void)POPs; |
| a0d0e21e LW |
1285 | SETn( left * right ); |
| 1286 | RETURN; | |
| 79072805 | 1287 | } |
| a0d0e21e LW |
1288 | } |
| 1289 | ||
| 1290 | PP(pp_divide) | |
| 1291 | { | |
| 800401ee | 1292 | dVAR; dSP; dATARGET; SV *svl, *svr; |
| 6f1401dc DM |
1293 | tryAMAGICbin_MG(div_amg, AMGf_assign|AMGf_numeric); |
| 1294 | svr = TOPs; | |
| 1295 | svl = TOPm1s; | |
| 5479d192 | 1296 | /* Only try to do UV divide first |
| 68795e93 | 1297 | if ((SLOPPYDIVIDE is true) or |
| 5479d192 NC |
1298 | (PERL_PRESERVE_IVUV is true and one or both SV is a UV too large |
| 1299 | to preserve)) | |
| 1300 | The assumption is that it is better to use floating point divide | |
| 1301 | whenever possible, only doing integer divide first if we can't be sure. | |
| 1302 | If NV_PRESERVES_UV is true then we know at compile time that no UV | |
| 1303 | can be too large to preserve, so don't need to compile the code to | |
| 1304 | test the size of UVs. */ | |
| 1305 | ||
| a0d0e21e | 1306 | #ifdef SLOPPYDIVIDE |
| 5479d192 NC |
1307 | # define PERL_TRY_UV_DIVIDE |
| 1308 | /* ensure that 20./5. == 4. */ | |
| a0d0e21e | 1309 | #else |
| 5479d192 NC |
1310 | # ifdef PERL_PRESERVE_IVUV |
| 1311 | # ifndef NV_PRESERVES_UV | |
| 1312 | # define PERL_TRY_UV_DIVIDE | |
| 1313 | # endif | |
| 1314 | # endif | |
| a0d0e21e | 1315 | #endif |
| 5479d192 NC |
1316 | |
| 1317 | #ifdef PERL_TRY_UV_DIVIDE | |
| 6f1401dc | 1318 | SvIV_please_nomg(svr); |
| 800401ee | 1319 | if (SvIOK(svr)) { |
| 6f1401dc | 1320 | SvIV_please_nomg(svl); |
| 800401ee JH |
1321 | if (SvIOK(svl)) { |
| 1322 | bool left_non_neg = SvUOK(svl); | |
| 1323 | bool right_non_neg = SvUOK(svr); | |
| 5479d192 NC |
1324 | UV left; |
| 1325 | UV right; | |
| 1326 | ||
| 1327 | if (right_non_neg) { | |
| 800401ee | 1328 | right = SvUVX(svr); |
| 5479d192 NC |
1329 | } |
| 1330 | else { | |
| 800401ee | 1331 | const IV biv = SvIVX(svr); |
| 5479d192 NC |
1332 | if (biv >= 0) { |
| 1333 | right = biv; | |
| 1334 | right_non_neg = TRUE; /* effectively it's a UV now */ | |
| 1335 | } | |
| 1336 | else { | |
| 1337 | right = -biv; | |
| 1338 | } | |
| 1339 | } | |
| 1340 | /* historically undef()/0 gives a "Use of uninitialized value" | |
| 1341 | warning before dieing, hence this test goes here. | |
| 1342 | If it were immediately before the second SvIV_please, then | |
| 1343 | DIE() would be invoked before left was even inspected, so | |
| 1344 | no inpsection would give no warning. */ | |
| 1345 | if (right == 0) | |
| 1346 | DIE(aTHX_ "Illegal division by zero"); | |
| 1347 | ||
| 1348 | if (left_non_neg) { | |
| 800401ee | 1349 | left = SvUVX(svl); |
| 5479d192 NC |
1350 | } |
| 1351 | else { | |
| 800401ee | 1352 | const IV aiv = SvIVX(svl); |
| 5479d192 NC |
1353 | if (aiv >= 0) { |
| 1354 | left = aiv; | |
| 1355 | left_non_neg = TRUE; /* effectively it's a UV now */ | |
| 1356 | } | |
| 1357 | else { | |
| 1358 | left = -aiv; | |
| 1359 | } | |
| 1360 | } | |
| 1361 | ||
| 1362 | if (left >= right | |
| 1363 | #ifdef SLOPPYDIVIDE | |
| 1364 | /* For sloppy divide we always attempt integer division. */ | |
| 1365 | #else | |
| 1366 | /* Otherwise we only attempt it if either or both operands | |
| 1367 | would not be preserved by an NV. If both fit in NVs | |
| 0c2ee62a NC |
1368 | we fall through to the NV divide code below. However, |
| 1369 | as left >= right to ensure integer result here, we know that | |
| 1370 | we can skip the test on the right operand - right big | |
| 1371 | enough not to be preserved can't get here unless left is | |
| 1372 | also too big. */ | |
| 1373 | ||
| 1374 | && (left > ((UV)1 << NV_PRESERVES_UV_BITS)) | |
| 5479d192 NC |
1375 | #endif |
| 1376 | ) { | |
| 1377 | /* Integer division can't overflow, but it can be imprecise. */ | |
| 1b6737cc | 1378 | const UV result = left / right; |
| 5479d192 NC |
1379 | if (result * right == left) { |
| 1380 | SP--; /* result is valid */ | |
| 1381 | if (left_non_neg == right_non_neg) { | |
| 1382 | /* signs identical, result is positive. */ | |
| 1383 | SETu( result ); | |
| 1384 | RETURN; | |
| 1385 | } | |
| 1386 | /* 2s complement assumption */ | |
| 1387 | if (result <= (UV)IV_MIN) | |
| 91f3b821 | 1388 | SETi( -(IV)result ); |
| 5479d192 NC |
1389 | else { |
| 1390 | /* It's exact but too negative for IV. */ | |
| 1391 | SETn( -(NV)result ); | |
| 1392 | } | |
| 1393 | RETURN; | |
| 1394 | } /* tried integer divide but it was not an integer result */ | |
| 32fdb065 | 1395 | } /* else (PERL_ABS(result) < 1.0) or (both UVs in range for NV) */ |
| 5479d192 NC |
1396 | } /* left wasn't SvIOK */ |
| 1397 | } /* right wasn't SvIOK */ | |
| 1398 | #endif /* PERL_TRY_UV_DIVIDE */ | |
| 1399 | { | |
| 6f1401dc DM |
1400 | NV right = SvNV_nomg(svr); |
| 1401 | NV left = SvNV_nomg(svl); | |
| 4efa5a16 | 1402 | (void)POPs;(void)POPs; |
| ebc6a117 PD |
1403 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
| 1404 | if (! Perl_isnan(right) && right == 0.0) | |
| 1405 | #else | |
| 5479d192 | 1406 | if (right == 0.0) |
| ebc6a117 | 1407 | #endif |
| 5479d192 NC |
1408 | DIE(aTHX_ "Illegal division by zero"); |
| 1409 | PUSHn( left / right ); | |
| 1410 | RETURN; | |
| 79072805 | 1411 | } |
| a0d0e21e LW |
1412 | } |
| 1413 | ||
| 1414 | PP(pp_modulo) | |
| 1415 | { | |
| 6f1401dc DM |
1416 | dVAR; dSP; dATARGET; |
| 1417 | tryAMAGICbin_MG(modulo_amg, AMGf_assign|AMGf_numeric); | |
| a0d0e21e | 1418 | { |
| 9c5ffd7c JH |
1419 | UV left = 0; |
| 1420 | UV right = 0; | |
| dc656993 JH |
1421 | bool left_neg = FALSE; |
| 1422 | bool right_neg = FALSE; | |
| e2c88acc NC |
1423 | bool use_double = FALSE; |
| 1424 | bool dright_valid = FALSE; | |
| 9c5ffd7c JH |
1425 | NV dright = 0.0; |
| 1426 | NV dleft = 0.0; | |
| 6f1401dc DM |
1427 | SV * const svr = TOPs; |
| 1428 | SV * const svl = TOPm1s; | |
| 1429 | SvIV_please_nomg(svr); | |
| 800401ee JH |
1430 | if (SvIOK(svr)) { |
| 1431 | right_neg = !SvUOK(svr); | |
| e2c88acc | 1432 | if (!right_neg) { |
| 800401ee | 1433 | right = SvUVX(svr); |
| e2c88acc | 1434 | } else { |
| 800401ee | 1435 | const IV biv = SvIVX(svr); |
| e2c88acc NC |
1436 | if (biv >= 0) { |
| 1437 | right = biv; | |
| 1438 | right_neg = FALSE; /* effectively it's a UV now */ | |
| 1439 | } else { | |
| 1440 | right = -biv; | |
| 1441 | } | |
| 1442 | } | |
| 1443 | } | |
| 1444 | else { | |
| 6f1401dc | 1445 | dright = SvNV_nomg(svr); |
| 787eafbd IZ |
1446 | right_neg = dright < 0; |
| 1447 | if (right_neg) | |
| 1448 | dright = -dright; | |
| e2c88acc NC |
1449 | if (dright < UV_MAX_P1) { |
| 1450 | right = U_V(dright); | |
| 1451 | dright_valid = TRUE; /* In case we need to use double below. */ | |
| 1452 | } else { | |
| 1453 | use_double = TRUE; | |
| 1454 | } | |
| 787eafbd | 1455 | } |
| a0d0e21e | 1456 | |
| e2c88acc NC |
1457 | /* At this point use_double is only true if right is out of range for |
| 1458 | a UV. In range NV has been rounded down to nearest UV and | |
| 1459 | use_double false. */ | |
| 6f1401dc | 1460 | SvIV_please_nomg(svl); |
| 800401ee JH |
1461 | if (!use_double && SvIOK(svl)) { |
| 1462 | if (SvIOK(svl)) { | |
| 1463 | left_neg = !SvUOK(svl); | |
| e2c88acc | 1464 | if (!left_neg) { |
| 800401ee | 1465 | left = SvUVX(svl); |
| e2c88acc | 1466 | } else { |
| 800401ee | 1467 | const IV aiv = SvIVX(svl); |
| e2c88acc NC |
1468 | if (aiv >= 0) { |
| 1469 | left = aiv; | |
| 1470 | left_neg = FALSE; /* effectively it's a UV now */ | |
| 1471 | } else { | |
| 1472 | left = -aiv; | |
| 1473 | } | |
| 1474 | } | |
| 1475 | } | |
| 1476 | } | |
| 787eafbd | 1477 | else { |
| 6f1401dc | 1478 | dleft = SvNV_nomg(svl); |
| 787eafbd IZ |
1479 | left_neg = dleft < 0; |
| 1480 | if (left_neg) | |
| 1481 | dleft = -dleft; | |
| 68dc0745 | 1482 | |
| e2c88acc NC |
1483 | /* This should be exactly the 5.6 behaviour - if left and right are |
| 1484 | both in range for UV then use U_V() rather than floor. */ | |
| 1485 | if (!use_double) { | |
| 1486 | if (dleft < UV_MAX_P1) { | |
| 1487 | /* right was in range, so is dleft, so use UVs not double. | |
| 1488 | */ | |
| 1489 | left = U_V(dleft); | |
| 1490 | } | |
| 1491 | /* left is out of range for UV, right was in range, so promote | |
| 1492 | right (back) to double. */ | |
| 1493 | else { | |
| 1494 | /* The +0.5 is used in 5.6 even though it is not strictly | |
| 1495 | consistent with the implicit +0 floor in the U_V() | |
| 1496 | inside the #if 1. */ | |
| 1497 | dleft = Perl_floor(dleft + 0.5); | |
| 1498 | use_double = TRUE; | |
| 1499 | if (dright_valid) | |
| 1500 | dright = Perl_floor(dright + 0.5); | |
| 1501 | else | |
| 1502 | dright = right; | |
| 1503 | } | |
| 1504 | } | |
| 1505 | } | |
| 6f1401dc | 1506 | sp -= 2; |
| 787eafbd | 1507 | if (use_double) { |
| 65202027 | 1508 | NV dans; |
| 787eafbd | 1509 | |
| 787eafbd | 1510 | if (!dright) |
| cea2e8a9 | 1511 | DIE(aTHX_ "Illegal modulus zero"); |
| 787eafbd | 1512 | |
| 65202027 | 1513 | dans = Perl_fmod(dleft, dright); |
| 787eafbd IZ |
1514 | if ((left_neg != right_neg) && dans) |
| 1515 | dans = dright - dans; | |
| 1516 | if (right_neg) | |
| 1517 | dans = -dans; | |
| 1518 | sv_setnv(TARG, dans); | |
| 1519 | } | |
| 1520 | else { | |
| 1521 | UV ans; | |
| 1522 | ||
| 787eafbd | 1523 | if (!right) |
| cea2e8a9 | 1524 | DIE(aTHX_ "Illegal modulus zero"); |
| 787eafbd IZ |
1525 | |
| 1526 | ans = left % right; | |
| 1527 | if ((left_neg != right_neg) && ans) | |
| 1528 | ans = right - ans; | |
| 1529 | if (right_neg) { | |
| 1530 | /* XXX may warn: unary minus operator applied to unsigned type */ | |
| 1531 | /* could change -foo to be (~foo)+1 instead */ | |
| 1532 | if (ans <= ~((UV)IV_MAX)+1) | |
| 1533 | sv_setiv(TARG, ~ans+1); | |
| 1534 | else | |
| 65202027 | 1535 | sv_setnv(TARG, -(NV)ans); |
| 787eafbd IZ |
1536 | } |
| 1537 | else | |
| 1538 | sv_setuv(TARG, ans); | |
| 1539 | } | |
| 1540 | PUSHTARG; | |
| 1541 | RETURN; | |
| 79072805 | 1542 | } |
| a0d0e21e | 1543 | } |
| 79072805 | 1544 | |
| a0d0e21e LW |
1545 | PP(pp_repeat) |
| 1546 | { | |
| 6f1401dc | 1547 | dVAR; dSP; dATARGET; |
| 2b573ace | 1548 | register IV count; |
| 6f1401dc DM |
1549 | SV *sv; |
| 1550 | ||
| 1551 | if (GIMME == G_ARRAY && PL_op->op_private & OPpREPEAT_DOLIST) { | |
| 1552 | /* TODO: think of some way of doing list-repeat overloading ??? */ | |
| 1553 | sv = POPs; | |
| 1554 | SvGETMAGIC(sv); | |
| 1555 | } | |
| 1556 | else { | |
| 1557 | tryAMAGICbin_MG(repeat_amg, AMGf_assign); | |
| 1558 | sv = POPs; | |
| 1559 | } | |
| 1560 | ||
| 2b573ace JH |
1561 | if (SvIOKp(sv)) { |
| 1562 | if (SvUOK(sv)) { | |
| 6f1401dc | 1563 | const UV uv = SvUV_nomg(sv); |
| 2b573ace JH |
1564 | if (uv > IV_MAX) |
| 1565 | count = IV_MAX; /* The best we can do? */ | |
| 1566 | else | |
| 1567 | count = uv; | |
| 1568 | } else { | |
| 6f1401dc | 1569 | const IV iv = SvIV_nomg(sv); |
| 2b573ace JH |
1570 | if (iv < 0) |
| 1571 | count = 0; | |
| 1572 | else | |
| 1573 | count = iv; | |
| 1574 | } | |
| 1575 | } | |
| 1576 | else if (SvNOKp(sv)) { | |
| 6f1401dc | 1577 | const NV nv = SvNV_nomg(sv); |
| 2b573ace JH |
1578 | if (nv < 0.0) |
| 1579 | count = 0; | |
| 1580 | else | |
| 1581 | count = (IV)nv; | |
| 1582 | } | |
| 1583 | else | |
| 6f1401dc DM |
1584 | count = SvIV_nomg(sv); |
| 1585 | ||
| 533c011a | 1586 | if (GIMME == G_ARRAY && PL_op->op_private & OPpREPEAT_DOLIST) { |
| a0d0e21e | 1587 | dMARK; |
| 0bd48802 AL |
1588 | static const char oom_list_extend[] = "Out of memory during list extend"; |
| 1589 | const I32 items = SP - MARK; | |
| 1590 | const I32 max = items * count; | |
| 79072805 | 1591 | |
| 2b573ace JH |
1592 | MEM_WRAP_CHECK_1(max, SV*, oom_list_extend); |
| 1593 | /* Did the max computation overflow? */ | |
| 27d5b266 | 1594 | if (items > 0 && max > 0 && (max < items || max < count)) |
| 2b573ace | 1595 | Perl_croak(aTHX_ oom_list_extend); |
| a0d0e21e LW |
1596 | MEXTEND(MARK, max); |
| 1597 | if (count > 1) { | |
| 1598 | while (SP > MARK) { | |
| 976c8a39 JH |
1599 | #if 0 |
| 1600 | /* This code was intended to fix 20010809.028: | |
| 1601 | ||
| 1602 | $x = 'abcd'; | |
| 1603 | for (($x =~ /./g) x 2) { | |
| 1604 | print chop; # "abcdabcd" expected as output. | |
| 1605 | } | |
| 1606 | ||
| 1607 | * but that change (#11635) broke this code: | |
| 1608 | ||
| 1609 | $x = [("foo")x2]; # only one "foo" ended up in the anonlist. | |
| 1610 | ||
| 1611 | * I can't think of a better fix that doesn't introduce | |
| 1612 | * an efficiency hit by copying the SVs. The stack isn't | |
| 1613 | * refcounted, and mortalisation obviously doesn't | |
| 1614 | * Do The Right Thing when the stack has more than | |
| 1615 | * one pointer to the same mortal value. | |
| 1616 | * .robin. | |
| 1617 | */ | |
| e30acc16 RH |
1618 | if (*SP) { |
| 1619 | *SP = sv_2mortal(newSVsv(*SP)); | |
| 1620 | SvREADONLY_on(*SP); | |
| 1621 | } | |
| 976c8a39 JH |
1622 | #else |
| 1623 | if (*SP) | |
| 1624 | SvTEMP_off((*SP)); | |
| 1625 | #endif | |
| a0d0e21e | 1626 | SP--; |
| 79072805 | 1627 | } |
| a0d0e21e LW |
1628 | MARK++; |
| 1629 | repeatcpy((char*)(MARK + items), (char*)MARK, | |
| ad64d0ec | 1630 | items * sizeof(const SV *), count - 1); |
| a0d0e21e | 1631 | SP += max; |
| 79072805 | 1632 | } |
| a0d0e21e LW |
1633 | else if (count <= 0) |
| 1634 | SP -= items; | |
| 79072805 | 1635 | } |
| a0d0e21e | 1636 | else { /* Note: mark already snarfed by pp_list */ |
| 0bd48802 | 1637 | SV * const tmpstr = POPs; |
| a0d0e21e | 1638 | STRLEN len; |
| 9b877dbb | 1639 | bool isutf; |
| 2b573ace JH |
1640 | static const char oom_string_extend[] = |
| 1641 | "Out of memory during string extend"; | |
| a0d0e21e | 1642 | |
| 6f1401dc DM |
1643 | if (TARG != tmpstr) |
| 1644 | sv_setsv_nomg(TARG, tmpstr); | |
| 1645 | SvPV_force_nomg(TARG, len); | |
| 9b877dbb | 1646 | isutf = DO_UTF8(TARG); |
| 8ebc5c01 PP |
1647 | if (count != 1) { |
| 1648 | if (count < 1) | |
| 1649 | SvCUR_set(TARG, 0); | |
| 1650 | else { | |
| c445ea15 | 1651 | const STRLEN max = (UV)count * len; |
| 19a94d75 | 1652 | if (len > MEM_SIZE_MAX / count) |
| 2b573ace JH |
1653 | Perl_croak(aTHX_ oom_string_extend); |
| 1654 | MEM_WRAP_CHECK_1(max, char, oom_string_extend); | |
| 8569b9dc | 1655 | SvGROW(TARG, max + 1); |
| a0d0e21e | 1656 | repeatcpy(SvPVX(TARG) + len, SvPVX(TARG), len, count - 1); |
| b162af07 | 1657 | SvCUR_set(TARG, SvCUR(TARG) * count); |
| 7a4c00b4 | 1658 | } |
| a0d0e21e | 1659 | *SvEND(TARG) = '\0'; |
| a0d0e21e | 1660 | } |
| dfcb284a GS |
1661 | if (isutf) |
| 1662 | (void)SvPOK_only_UTF8(TARG); | |
| 1663 | else | |
| 1664 | (void)SvPOK_only(TARG); | |
| b80b6069 RH |
1665 | |
| 1666 | if (PL_op->op_private & OPpREPEAT_DOLIST) { | |
| 1667 | /* The parser saw this as a list repeat, and there | |
| 1668 | are probably several items on the stack. But we're | |
| 1669 | in scalar context, and there's no pp_list to save us | |
| 1670 | now. So drop the rest of the items -- robin@kitsite.com | |
| 1671 | */ | |
| 1672 | dMARK; | |
| 1673 | SP = MARK; | |
| 1674 | } | |
| a0d0e21e | 1675 | PUSHTARG; |
| 79072805 | 1676 | } |
| a0d0e21e LW |
1677 | RETURN; |
| 1678 | } | |
| 79072805 | 1679 | |
| a0d0e21e LW |
1680 | PP(pp_subtract) |
| 1681 | { | |
| 800401ee | 1682 | dVAR; dSP; dATARGET; bool useleft; SV *svl, *svr; |
| 6f1401dc DM |
1683 | tryAMAGICbin_MG(subtr_amg, AMGf_assign|AMGf_numeric); |
| 1684 | svr = TOPs; | |
| 1685 | svl = TOPm1s; | |
| 800401ee | 1686 | useleft = USE_LEFT(svl); |
| 28e5dec8 | 1687 | #ifdef PERL_PRESERVE_IVUV |
| 7dca457a NC |
1688 | /* See comments in pp_add (in pp_hot.c) about Overflow, and how |
| 1689 | "bad things" happen if you rely on signed integers wrapping. */ | |
| 6f1401dc | 1690 | SvIV_please_nomg(svr); |
| 800401ee | 1691 | if (SvIOK(svr)) { |
| 28e5dec8 JH |
1692 | /* Unless the left argument is integer in range we are going to have to |
| 1693 | use NV maths. Hence only attempt to coerce the right argument if | |
| 1694 | we know the left is integer. */ | |
| 9c5ffd7c JH |
1695 | register UV auv = 0; |
| 1696 | bool auvok = FALSE; | |
| 7dca457a NC |
1697 | bool a_valid = 0; |
| 1698 | ||
| 28e5dec8 | 1699 | if (!useleft) { |
| 7dca457a NC |
1700 | auv = 0; |
| 1701 | a_valid = auvok = 1; | |
| 1702 | /* left operand is undef, treat as zero. */ | |
| 28e5dec8 JH |
1703 | } else { |
| 1704 | /* Left operand is defined, so is it IV? */ | |
| 6f1401dc | 1705 | SvIV_please_nomg(svl); |
| 800401ee JH |
1706 | if (SvIOK(svl)) { |
| 1707 | if ((auvok = SvUOK(svl))) | |
| 1708 | auv = SvUVX(svl); | |
| 7dca457a | 1709 | else { |
| 800401ee | 1710 | register const IV aiv = SvIVX(svl); |
| 7dca457a NC |
1711 | if (aiv >= 0) { |
| 1712 | auv = aiv; | |
| 1713 | auvok = 1; /* Now acting as a sign flag. */ | |
| 1714 | } else { /* 2s complement assumption for IV_MIN */ | |
| 1715 | auv = (UV)-aiv; | |
| 28e5dec8 | 1716 | } |
| 7dca457a NC |
1717 | } |
| 1718 | a_valid = 1; | |
| 1719 | } | |
| 1720 | } | |
| 1721 | if (a_valid) { | |
| 1722 | bool result_good = 0; | |
| 1723 | UV result; | |
| 1724 | register UV buv; | |
| 800401ee | 1725 | bool buvok = SvUOK(svr); |
| 9041c2e3 | 1726 | |
| 7dca457a | 1727 | if (buvok) |
| 800401ee | 1728 | buv = SvUVX(svr); |
| 7dca457a | 1729 | else { |
| 800401ee | 1730 | register const IV biv = SvIVX(svr); |
| 7dca457a NC |
1731 | if (biv >= 0) { |
| 1732 | buv = biv; | |
| 1733 | buvok = 1; | |
| 1734 | } else | |
| 1735 | buv = (UV)-biv; | |
| 1736 | } | |
| 1737 | /* ?uvok if value is >= 0. basically, flagged as UV if it's +ve, | |
| 602f51c4 | 1738 | else "IV" now, independent of how it came in. |
| 7dca457a NC |
1739 | if a, b represents positive, A, B negative, a maps to -A etc |
| 1740 | a - b => (a - b) | |
| 1741 | A - b => -(a + b) | |
| 1742 | a - B => (a + b) | |
| 1743 | A - B => -(a - b) | |
| 1744 | all UV maths. negate result if A negative. | |
| 1745 | subtract if signs same, add if signs differ. */ | |
| 1746 | ||
| 1747 | if (auvok ^ buvok) { | |
| 1748 | /* Signs differ. */ | |
| 1749 | result = auv + buv; | |
| 1750 | if (result >= auv) | |
| 1751 | result_good = 1; | |
| 1752 | } else { | |
| 1753 | /* Signs same */ | |
| 1754 | if (auv >= buv) { | |
| 1755 | result = auv - buv; | |
| 1756 | /* Must get smaller */ | |
| 1757 | if (result <= auv) | |
| 1758 | result_good = 1; | |
| 1759 | } else { | |
| 1760 | result = buv - auv; | |
| 1761 | if (result <= buv) { | |
| 1762 | /* result really should be -(auv-buv). as its negation | |
| 1763 | of true value, need to swap our result flag */ | |
| 1764 | auvok = !auvok; | |
| 1765 | result_good = 1; | |
| 28e5dec8 | 1766 | } |
| 28e5dec8 JH |
1767 | } |
| 1768 | } | |
| 7dca457a NC |
1769 | if (result_good) { |
| 1770 | SP--; | |
| 1771 | if (auvok) | |
| 1772 | SETu( result ); | |
| 1773 | else { | |
| 1774 | /* Negate result */ | |
| 1775 | if (result <= (UV)IV_MIN) | |
| 1776 | SETi( -(IV)result ); | |
| 1777 | else { | |
| 1778 | /* result valid, but out of range for IV. */ | |
| 1779 | SETn( -(NV)result ); | |
| 1780 | } | |
| 1781 | } | |
| 1782 | RETURN; | |
| 1783 | } /* Overflow, drop through to NVs. */ | |
| 28e5dec8 JH |
1784 | } |
| 1785 | } | |
| 1786 | #endif | |
| a0d0e21e | 1787 | { |
| 6f1401dc | 1788 | NV value = SvNV_nomg(svr); |
| 4efa5a16 RD |
1789 | (void)POPs; |
| 1790 | ||
| 28e5dec8 JH |
1791 | if (!useleft) { |
| 1792 | /* left operand is undef, treat as zero - value */ | |
| 1793 | SETn(-value); | |
| 1794 | RETURN; | |
| 1795 | } | |
| 6f1401dc | 1796 | SETn( SvNV_nomg(svl) - value ); |
| 28e5dec8 | 1797 | RETURN; |
| 79072805 | 1798 | } |
| a0d0e21e | 1799 | } |
| 79072805 | 1800 | |
| a0d0e21e LW |
1801 | PP(pp_left_shift) |
| 1802 | { | |
| 6f1401dc | 1803 | dVAR; dSP; dATARGET; SV *svl, *svr; |
| a42d0242 | 1804 | tryAMAGICbin_MG(lshift_amg, AMGf_assign|AMGf_numeric); |
| 6f1401dc DM |
1805 | svr = POPs; |
| 1806 | svl = TOPs; | |
| a0d0e21e | 1807 | { |
| 6f1401dc | 1808 | const IV shift = SvIV_nomg(svr); |
| d0ba1bd2 | 1809 | if (PL_op->op_private & HINT_INTEGER) { |
| 6f1401dc | 1810 | const IV i = SvIV_nomg(svl); |
| 972b05a9 | 1811 | SETi(i << shift); |
| d0ba1bd2 JH |
1812 | } |
| 1813 | else { | |
| 6f1401dc | 1814 | const UV u = SvUV_nomg(svl); |
| 972b05a9 | 1815 | SETu(u << shift); |
| d0ba1bd2 | 1816 | } |
| 55497cff | 1817 | RETURN; |
| 79072805 | 1818 | } |
| a0d0e21e | 1819 | } |
| 79072805 | 1820 | |
| a0d0e21e LW |
1821 | PP(pp_right_shift) |
| 1822 | { | |
| 6f1401dc | 1823 | dVAR; dSP; dATARGET; SV *svl, *svr; |
| a42d0242 | 1824 | tryAMAGICbin_MG(rshift_amg, AMGf_assign|AMGf_numeric); |
| 6f1401dc DM |
1825 | svr = POPs; |
| 1826 | svl = TOPs; | |
| a0d0e21e | 1827 | { |
| 6f1401dc | 1828 | const IV shift = SvIV_nomg(svr); |
| d0ba1bd2 | 1829 | if (PL_op->op_private & HINT_INTEGER) { |
| 6f1401dc | 1830 | const IV i = SvIV_nomg(svl); |
| 972b05a9 | 1831 | SETi(i >> shift); |
| d0ba1bd2 JH |
1832 | } |
| 1833 | else { | |
| 6f1401dc | 1834 | const UV u = SvUV_nomg(svl); |
| 972b05a9 | 1835 | SETu(u >> shift); |
| d0ba1bd2 | 1836 | } |
| a0d0e21e | 1837 | RETURN; |
| 93a17b20 | 1838 | } |
| 79072805 LW |
1839 | } |
| 1840 | ||
| a0d0e21e | 1841 | PP(pp_lt) |
| 79072805 | 1842 | { |
| 6f1401dc | 1843 | dVAR; dSP; |
| a42d0242 | 1844 | tryAMAGICbin_MG(lt_amg, AMGf_set|AMGf_numeric); |
| 28e5dec8 | 1845 | #ifdef PERL_PRESERVE_IVUV |
| 6f1401dc | 1846 | SvIV_please_nomg(TOPs); |
| 28e5dec8 | 1847 | if (SvIOK(TOPs)) { |
| 6f1401dc | 1848 | SvIV_please_nomg(TOPm1s); |
| 28e5dec8 JH |
1849 | if (SvIOK(TOPm1s)) { |
| 1850 | bool auvok = SvUOK(TOPm1s); | |
| 1851 | bool buvok = SvUOK(TOPs); | |
| a227d84d | 1852 | |
| 28e5dec8 | 1853 | if (!auvok && !buvok) { /* ## IV < IV ## */ |
| 1b6737cc AL |
1854 | const IV aiv = SvIVX(TOPm1s); |
| 1855 | const IV biv = SvIVX(TOPs); | |
| 28e5dec8 JH |
1856 | |
| 1857 | SP--; | |
| 1858 | SETs(boolSV(aiv < biv)); | |
| 1859 | RETURN; | |
| 1860 | } | |
| 1861 | if (auvok && buvok) { /* ## UV < UV ## */ | |
| 1b6737cc AL |
1862 | const UV auv = SvUVX(TOPm1s); |
| 1863 | const UV buv = SvUVX(TOPs); | |
| 28e5dec8 JH |
1864 | |
| 1865 | SP--; | |
| 1866 | SETs(boolSV(auv < buv)); | |
| 1867 | RETURN; | |
| 1868 | } | |
| 1869 | if (auvok) { /* ## UV < IV ## */ | |
| 1870 | UV auv; | |
| 1b6737cc | 1871 | const IV biv = SvIVX(TOPs); |
| 28e5dec8 JH |
1872 | SP--; |
| 1873 | if (biv < 0) { | |
| 1874 | /* As (a) is a UV, it's >=0, so it cannot be < */ | |
| 1875 | SETs(&PL_sv_no); | |
| 1876 | RETURN; | |
| 1877 | } | |
| 1878 | auv = SvUVX(TOPs); | |
| 28e5dec8 JH |
1879 | SETs(boolSV(auv < (UV)biv)); |
| 1880 | RETURN; | |
| 1881 | } | |
| 1882 | { /* ## IV < UV ## */ | |
| 1b6737cc | 1883 | const IV aiv = SvIVX(TOPm1s); |
| 28e5dec8 JH |
1884 | UV buv; |
| 1885 | ||
| 28e5dec8 JH |
1886 | if (aiv < 0) { |
| 1887 | /* As (b) is a UV, it's >=0, so it must be < */ | |
| 1888 | SP--; | |
| 1889 | SETs(&PL_sv_yes); | |
| 1890 | RETURN; | |
| 1891 | } | |
| 1892 | buv = SvUVX(TOPs); | |
| 1893 | SP--; | |
| 28e5dec8 JH |
1894 | SETs(boolSV((UV)aiv < buv)); |
| 1895 | RETURN; | |
| 1896 | } | |
| 1897 | } | |
| 1898 | } | |
| 1899 | #endif | |
| 30de85b6 | 1900 | #ifndef NV_PRESERVES_UV |
| 50fb3111 NC |
1901 | #ifdef PERL_PRESERVE_IVUV |
| 1902 | else | |
| 1903 | #endif | |
| ed3b9b3c | 1904 | if (SvROK(TOPs) && !SvAMAGIC(TOPs) && SvROK(TOPm1s) && !SvAMAGIC(TOPm1s)) { |
| 0bdaccee NC |
1905 | SP--; |
| 1906 | SETs(boolSV(SvRV(TOPs) < SvRV(TOPp1s))); | |
| 1907 | RETURN; | |
| 1908 | } | |
| 30de85b6 | 1909 | #endif |
| a0d0e21e | 1910 | { |
| cab190d4 | 1911 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
| 6f1401dc | 1912 | dPOPTOPnnrl_nomg; |
| cab190d4 JD |
1913 | if (Perl_isnan(left) || Perl_isnan(right)) |
| 1914 | RETSETNO; | |
| 1915 | SETs(boolSV(left < right)); | |
| 1916 | #else | |
| 6f1401dc DM |
1917 | dPOPnv_nomg; |
| 1918 | SETs(boolSV(SvNV_nomg(TOPs) < value)); | |
| cab190d4 | 1919 | #endif |
| a0d0e21e | 1920 | RETURN; |
| 79072805 | 1921 | } |
| a0d0e21e | 1922 | } |
| 79072805 | 1923 | |
| a0d0e21e LW |
1924 | PP(pp_gt) |
| 1925 | { | |
| 6f1401dc | 1926 | dVAR; dSP; |
| a42d0242 | 1927 | tryAMAGICbin_MG(gt_amg, AMGf_set|AMGf_numeric); |
| 28e5dec8 | 1928 | #ifdef PERL_PRESERVE_IVUV |
| 6f1401dc | 1929 | SvIV_please_nomg(TOPs); |
| 28e5dec8 | 1930 | if (SvIOK(TOPs)) { |
| 6f1401dc | 1931 | SvIV_please_nomg(TOPm1s); |
| 28e5dec8 JH |
1932 | if (SvIOK(TOPm1s)) { |
| 1933 | bool auvok = SvUOK(TOPm1s); | |
| 1934 | bool buvok = SvUOK(TOPs); | |
| a227d84d | 1935 | |
| 28e5dec8 | 1936 | if (!auvok && !buvok) { /* ## IV > IV ## */ |
| 1b6737cc AL |
1937 | const IV aiv = SvIVX(TOPm1s); |
| 1938 | const IV biv = SvIVX(TOPs); | |
| 1939 | ||
| 28e5dec8 JH |
1940 | SP--; |
| 1941 | SETs(boolSV(aiv > biv)); | |
| 1942 | RETURN; | |
| 1943 | } | |
| 1944 | if (auvok && buvok) { /* ## UV > UV ## */ | |
| 1b6737cc AL |
1945 | const UV auv = SvUVX(TOPm1s); |
| 1946 | const UV buv = SvUVX(TOPs); | |
| 28e5dec8 JH |
1947 | |
| 1948 | SP--; | |
| 1949 | SETs(boolSV(auv > buv)); | |
| 1950 | RETURN; | |
| 1951 | } | |
| 1952 | if (auvok) { /* ## UV > IV ## */ | |
| 1953 | UV auv; | |
| 1b6737cc AL |
1954 | const IV biv = SvIVX(TOPs); |
| 1955 | ||
| 28e5dec8 JH |
1956 | SP--; |
| 1957 | if (biv < 0) { | |
| 1958 | /* As (a) is a UV, it's >=0, so it must be > */ | |
| 1959 | SETs(&PL_sv_yes); | |
| 1960 | RETURN; | |
| 1961 | } | |
| 1962 | auv = SvUVX(TOPs); | |
| 28e5dec8 JH |
1963 | SETs(boolSV(auv > (UV)biv)); |
| 1964 | RETURN; | |
| 1965 | } | |
| 1966 | { /* ## IV > UV ## */ | |
| 1b6737cc | 1967 | const IV aiv = SvIVX(TOPm1s); |
| 28e5dec8 JH |
1968 | UV buv; |
| 1969 | ||
| 28e5dec8 JH |
1970 | if (aiv < 0) { |
| 1971 | /* As (b) is a UV, it's >=0, so it cannot be > */ | |
| 1972 | SP--; | |
| 1973 | SETs(&PL_sv_no); | |
| 1974 | RETURN; | |
| 1975 | } | |
| 1976 | buv = SvUVX(TOPs); | |
| 1977 | SP--; | |
| 28e5dec8 JH |
1978 | SETs(boolSV((UV)aiv > buv)); |
| 1979 | RETURN; | |
| 1980 | } | |
| 1981 | } | |
| 1982 | } | |
| 1983 | #endif | |
| 30de85b6 | 1984 | #ifndef NV_PRESERVES_UV |
| 50fb3111 NC |
1985 | #ifdef PERL_PRESERVE_IVUV |
| 1986 | else | |
| 1987 | #endif | |
| ed3b9b3c | 1988 | if (SvROK(TOPs) && !SvAMAGIC(TOPs) && SvROK(TOPm1s) && !SvAMAGIC(TOPm1s)) { |
| 30de85b6 NC |
1989 | SP--; |
| 1990 | SETs(boolSV(SvRV(TOPs) > SvRV(TOPp1s))); | |
| 1991 | RETURN; | |
| 1992 | } | |
| 1993 | #endif | |
| a0d0e21e | 1994 | { |
| cab190d4 | 1995 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
| 6f1401dc | 1996 | dPOPTOPnnrl_nomg; |
| cab190d4 JD |
1997 | if (Perl_isnan(left) || Perl_isnan(right)) |
| 1998 | RETSETNO; | |
| 1999 | SETs(boolSV(left > right)); | |
| 2000 | #else | |
| 6f1401dc DM |
2001 | dPOPnv_nomg; |
| 2002 | SETs(boolSV(SvNV_nomg(TOPs) > value)); | |
| cab190d4 | 2003 | #endif |
| a0d0e21e | 2004 | RETURN; |
| 79072805 | 2005 | } |
| a0d0e21e LW |
2006 | } |
| 2007 | ||
| 2008 | PP(pp_le) | |
| 2009 | { | |
| 6f1401dc | 2010 | dVAR; dSP; |
| a42d0242 | 2011 | tryAMAGICbin_MG(le_amg, AMGf_set|AMGf_numeric); |
| 28e5dec8 | 2012 | #ifdef PERL_PRESERVE_IVUV |
| 6f1401dc | 2013 | SvIV_please_nomg(TOPs); |
| 28e5dec8 | 2014 | if (SvIOK(TOPs)) { |
| 6f1401dc | 2015 | SvIV_please_nomg(TOPm1s); |
| 28e5dec8 JH |
2016 | if (SvIOK(TOPm1s)) { |
| 2017 | bool auvok = SvUOK(TOPm1s); | |
| 2018 | bool buvok = SvUOK(TOPs); | |
| a227d84d | 2019 | |
| 28e5dec8 | 2020 | if (!auvok && !buvok) { /* ## IV <= IV ## */ |
| 1b6737cc AL |
2021 | const IV aiv = SvIVX(TOPm1s); |
| 2022 | const IV biv = SvIVX(TOPs); | |
| 28e5dec8 JH |
2023 | |
| 2024 | SP--; | |
| 2025 | SETs(boolSV(aiv <= biv)); | |
| 2026 | RETURN; | |
| 2027 | } | |
| 2028 | if (auvok && buvok) { /* ## UV <= UV ## */ | |
| 2029 | UV auv = SvUVX(TOPm1s); | |
| 2030 | UV buv = SvUVX(TOPs); | |
| 2031 | ||
| 2032 | SP--; | |
| 2033 | SETs(boolSV(auv <= buv)); | |
| 2034 | RETURN; | |
| 2035 | } | |
| 2036 | if (auvok) { /* ## UV <= IV ## */ | |
| 2037 | UV auv; | |
| 1b6737cc AL |
2038 | const IV biv = SvIVX(TOPs); |
| 2039 | ||
| 28e5dec8 JH |
2040 | SP--; |
| 2041 | if (biv < 0) { | |
| 2042 | /* As (a) is a UV, it's >=0, so a cannot be <= */ | |
| 2043 | SETs(&PL_sv_no); | |
| 2044 | RETURN; | |
| 2045 | } | |
| 2046 | auv = SvUVX(TOPs); | |
| 28e5dec8 JH |
2047 | SETs(boolSV(auv <= (UV)biv)); |
| 2048 | RETURN; | |
| 2049 | } | |
| 2050 | { /* ## IV <= UV ## */ | |
| 1b6737cc | 2051 | const IV aiv = SvIVX(TOPm1s); |
| 28e5dec8 | 2052 | UV buv; |
| 1b6737cc | 2053 | |
| 28e5dec8 JH |
2054 | if (aiv < 0) { |
| 2055 | /* As (b) is a UV, it's >=0, so a must be <= */ | |
| 2056 | SP--; | |
| 2057 | SETs(&PL_sv_yes); | |
| 2058 | RETURN; | |
| 2059 | } | |
| 2060 | buv = SvUVX(TOPs); | |
| 2061 | SP--; | |
| 28e5dec8 JH |
2062 | SETs(boolSV((UV)aiv <= buv)); |
| 2063 | RETURN; | |
| 2064 | } | |
| 2065 | } | |
| 2066 | } | |
| 2067 | #endif | |
| 30de85b6 | 2068 | #ifndef NV_PRESERVES_UV |
| 50fb3111 NC |
2069 | #ifdef PERL_PRESERVE_IVUV |
| 2070 | else | |
| 2071 | #endif | |
| ed3b9b3c | 2072 | if (SvROK(TOPs) && !SvAMAGIC(TOPs) && SvROK(TOPm1s) && !SvAMAGIC(TOPm1s)) { |
| 30de85b6 NC |
2073 | SP--; |
| 2074 | SETs(boolSV(SvRV(TOPs) <= SvRV(TOPp1s))); | |
| 2075 | RETURN; | |
| 2076 | } | |
| 2077 | #endif | |
| a0d0e21e | 2078 | { |
| cab190d4 | 2079 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
| 6f1401dc | 2080 | dPOPTOPnnrl_nomg; |
| cab190d4 JD |
2081 | if (Perl_isnan(left) || Perl_isnan(right)) |
| 2082 | RETSETNO; | |
| 2083 | SETs(boolSV(left <= right)); | |
| 2084 | #else | |
| 6f1401dc DM |
2085 | dPOPnv_nomg; |
| 2086 | SETs(boolSV(SvNV_nomg(TOPs) <= value)); | |
| cab190d4 | 2087 | #endif |
| a0d0e21e | 2088 | RETURN; |
| 79072805 | 2089 | } |
| a0d0e21e LW |
2090 | } |
| 2091 | ||
| 2092 | PP(pp_ge) | |
| 2093 | { | |
| 6f1401dc | 2094 | dVAR; dSP; |
| a42d0242 | 2095 | tryAMAGICbin_MG(ge_amg,AMGf_set|AMGf_numeric); |
| 28e5dec8 | 2096 | #ifdef PERL_PRESERVE_IVUV |
| 6f1401dc | 2097 | SvIV_please_nomg(TOPs); |
| 28e5dec8 | 2098 | if (SvIOK(TOPs)) { |
| 6f1401dc | 2099 | SvIV_please_nomg(TOPm1s); |
| 28e5dec8 JH |
2100 | if (SvIOK(TOPm1s)) { |
| 2101 | bool auvok = SvUOK(TOPm1s); | |
| 2102 | bool buvok = SvUOK(TOPs); | |
| a227d84d | 2103 | |
| 28e5dec8 | 2104 | if (!auvok && !buvok) { /* ## IV >= IV ## */ |
| 1b6737cc AL |
2105 | const IV aiv = SvIVX(TOPm1s); |
| 2106 | const IV biv = SvIVX(TOPs); | |
| 2107 | ||
| 28e5dec8 JH |
2108 | SP--; |
| 2109 | SETs(boolSV(aiv >= biv)); | |
| 2110 | RETURN; | |
| 2111 | } | |
| 2112 | if (auvok && buvok) { /* ## UV >= UV ## */ | |
| 1b6737cc AL |
2113 | const UV auv = SvUVX(TOPm1s); |
| 2114 | const UV buv = SvUVX(TOPs); | |
| 2115 | ||
| 28e5dec8 JH |
2116 | SP--; |
| 2117 | SETs(boolSV(auv >= buv)); | |
| 2118 | RETURN; | |
| 2119 | } | |
| 2120 | if (auvok) { /* ## UV >= IV ## */ | |
| 2121 | UV auv; | |
| 1b6737cc AL |
2122 | const IV biv = SvIVX(TOPs); |
| 2123 | ||
| 28e5dec8 JH |
2124 | SP--; |
| 2125 | if (biv < 0) { | |
| 2126 | /* As (a) is a UV, it's >=0, so it must be >= */ | |
| 2127 | SETs(&PL_sv_yes); | |
| 2128 | RETURN; | |
| 2129 | } | |
| 2130 | auv = SvUVX(TOPs); | |
| 28e5dec8 JH |
2131 | SETs(boolSV(auv >= (UV)biv)); |
| 2132 | RETURN; | |
| 2133 | } | |
| 2134 | { /* ## IV >= UV ## */ | |
| 1b6737cc | 2135 | const IV aiv = SvIVX(TOPm1s); |
| 28e5dec8 | 2136 | UV buv; |
| 1b6737cc | 2137 | |
| 28e5dec8 JH |
2138 | if (aiv < 0) { |
| 2139 | /* As (b) is a UV, it's >=0, so a cannot be >= */ | |
| 2140 | SP--; | |
| 2141 | SETs(&PL_sv_no); | |
| 2142 | RETURN; | |
| 2143 | } | |
| 2144 | buv = SvUVX(TOPs); | |
| 2145 | SP--; | |
| 28e5dec8 JH |
2146 | SETs(boolSV((UV)aiv >= buv)); |
| 2147 | RETURN; | |
| 2148 | } | |
| 2149 | } | |
| 2150 | } | |
| 2151 | #endif | |
| 30de85b6 | 2152 | #ifndef NV_PRESERVES_UV |
| 50fb3111 NC |
2153 | #ifdef PERL_PRESERVE_IVUV |
| 2154 | else | |
| 2155 | #endif | |
| ed3b9b3c | 2156 | if (SvROK(TOPs) && !SvAMAGIC(TOPs) && SvROK(TOPm1s) && !SvAMAGIC(TOPm1s)) { |
| 30de85b6 NC |
2157 | SP--; |
| 2158 | SETs(boolSV(SvRV(TOPs) >= SvRV(TOPp1s))); | |
| 2159 | RETURN; | |
| 2160 | } | |
| 2161 | #endif | |
| a0d0e21e | 2162 | { |
| cab190d4 | 2163 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
| 6f1401dc | 2164 | dPOPTOPnnrl_nomg; |
| cab190d4 JD |
2165 | if (Perl_isnan(left) || Perl_isnan(right)) |
| 2166 | RETSETNO; | |
| 2167 | SETs(boolSV(left >= right)); | |
| 2168 | #else | |
| 6f1401dc DM |
2169 | dPOPnv_nomg; |
| 2170 | SETs(boolSV(SvNV_nomg(TOPs) >= value)); | |
| cab190d4 | 2171 | #endif |
| a0d0e21e | 2172 | RETURN; |
| 79072805 | 2173 | } |
| a0d0e21e | 2174 | } |
| 79072805 | 2175 | |
| a0d0e21e LW |
2176 | PP(pp_ne) |
| 2177 | { | |
| 6f1401dc | 2178 | dVAR; dSP; |
| a42d0242 | 2179 | tryAMAGICbin_MG(ne_amg,AMGf_set|AMGf_numeric); |
| 3bb2c415 | 2180 | #ifndef NV_PRESERVES_UV |
| ed3b9b3c | 2181 | if (SvROK(TOPs) && !SvAMAGIC(TOPs) && SvROK(TOPm1s) && !SvAMAGIC(TOPm1s)) { |
| e61d22ef NC |
2182 | SP--; |
| 2183 | SETs(boolSV(SvRV(TOPs) != SvRV(TOPp1s))); | |
| 3bb2c415 JH |
2184 | RETURN; |
| 2185 | } | |
| 2186 | #endif | |
| 28e5dec8 | 2187 | #ifdef PERL_PRESERVE_IVUV |
| 6f1401dc | 2188 | SvIV_please_nomg(TOPs); |
| 28e5dec8 | 2189 | if (SvIOK(TOPs)) { |
| 6f1401dc | 2190 | SvIV_please_nomg(TOPm1s); |
| 28e5dec8 | 2191 | if (SvIOK(TOPm1s)) { |
| 0bd48802 AL |
2192 | const bool auvok = SvUOK(TOPm1s); |
| 2193 | const bool buvok = SvUOK(TOPs); | |
| a227d84d | 2194 | |
| 30de85b6 NC |
2195 | if (auvok == buvok) { /* ## IV == IV or UV == UV ## */ |
| 2196 | /* Casting IV to UV before comparison isn't going to matter | |
| 2197 | on 2s complement. On 1s complement or sign&magnitude | |
| 2198 | (if we have any of them) it could make negative zero | |
| 2199 | differ from normal zero. As I understand it. (Need to | |
| 2200 | check - is negative zero implementation defined behaviour | |
| 2201 | anyway?). NWC */ | |
| 1b6737cc AL |
2202 | const UV buv = SvUVX(POPs); |
| 2203 | const UV auv = SvUVX(TOPs); | |
| 2204 | ||
| 28e5dec8 JH |
2205 | SETs(boolSV(auv != buv)); |
| 2206 | RETURN; | |
| 2207 | } | |
| 2208 | { /* ## Mixed IV,UV ## */ | |
| 2209 | IV iv; | |
| 2210 | UV uv; | |
| 2211 | ||
| 2212 | /* != is commutative so swap if needed (save code) */ | |
| 2213 | if (auvok) { | |
| 2214 | /* swap. top of stack (b) is the iv */ | |
| 2215 | iv = SvIVX(TOPs); | |
| 2216 | SP--; | |
| 2217 | if (iv < 0) { | |
| 2218 | /* As (a) is a UV, it's >0, so it cannot be == */ | |
| 2219 | SETs(&PL_sv_yes); | |
| 2220 | RETURN; | |
| 2221 | } | |
| 2222 | uv = SvUVX(TOPs); | |
| 2223 | } else { | |
| 2224 | iv = SvIVX(TOPm1s); | |
| 2225 | SP--; | |
| 2226 | if (iv < 0) { | |
| 2227 | /* As (b) is a UV, it's >0, so it cannot be == */ | |
| 2228 | SETs(&PL_sv_yes); | |
| 2229 | RETURN; | |
| 2230 | } | |
| 2231 | uv = SvUVX(*(SP+1)); /* Do I want TOPp1s() ? */ | |
| 2232 | } | |
| 28e5dec8 JH |
2233 | SETs(boolSV((UV)iv != uv)); |
| 2234 | RETURN; | |
| 2235 | } | |
| 2236 | } | |
| 2237 | } | |
| 2238 | #endif | |
| a0d0e21e | 2239 | { |
| cab190d4 | 2240 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
| 6f1401dc | 2241 | dPOPTOPnnrl_nomg; |
| cab190d4 JD |
2242 | if (Perl_isnan(left) || Perl_isnan(right)) |
| 2243 | RETSETYES; | |
| 2244 | SETs(boolSV(left != right)); | |
| 2245 | #else | |
| 6f1401dc DM |
2246 | dPOPnv_nomg; |
| 2247 | SETs(boolSV(SvNV_nomg(TOPs) != value)); | |
| cab190d4 | 2248 | #endif |
| a0d0e21e LW |
2249 | RETURN; |
| 2250 | } | |
| 79072805 LW |
2251 | } |
| 2252 | ||
| a0d0e21e | 2253 | PP(pp_ncmp) |
| 79072805 | 2254 | { |
| 6f1401dc | 2255 | dVAR; dSP; dTARGET; |
| a42d0242 | 2256 | tryAMAGICbin_MG(ncmp_amg, AMGf_numeric); |
| d8c7644e | 2257 | #ifndef NV_PRESERVES_UV |
| ed3b9b3c | 2258 | if (SvROK(TOPs) && !SvAMAGIC(TOPs) && SvROK(TOPm1s) && !SvAMAGIC(TOPm1s)) { |
| 0bd48802 AL |
2259 | const UV right = PTR2UV(SvRV(POPs)); |
| 2260 | const UV left = PTR2UV(SvRV(TOPs)); | |
| e61d22ef | 2261 | SETi((left > right) - (left < right)); |
| d8c7644e JH |
2262 | RETURN; |
| 2263 | } | |
| 2264 | #endif | |
| 28e5dec8 JH |
2265 | #ifdef PERL_PRESERVE_IVUV |
| 2266 | /* Fortunately it seems NaN isn't IOK */ | |
| 6f1401dc | 2267 | SvIV_please_nomg(TOPs); |
| 28e5dec8 | 2268 | if (SvIOK(TOPs)) { |
| 6f1401dc | 2269 | SvIV_please_nomg(TOPm1s); |
| 28e5dec8 | 2270 | if (SvIOK(TOPm1s)) { |
| 1b6737cc AL |
2271 | const bool leftuvok = SvUOK(TOPm1s); |
| 2272 | const bool rightuvok = SvUOK(TOPs); | |
| 28e5dec8 JH |
2273 | I32 value; |
| 2274 | if (!leftuvok && !rightuvok) { /* ## IV <=> IV ## */ | |
| 1b6737cc AL |
2275 | const IV leftiv = SvIVX(TOPm1s); |
| 2276 | const IV rightiv = SvIVX(TOPs); | |
| 28e5dec8 JH |
2277 | |
| 2278 | if (leftiv > rightiv) | |
| 2279 | value = 1; | |
| 2280 | else if (leftiv < rightiv) | |
| 2281 | value = -1; | |
| 2282 | else | |
| 2283 | value = 0; | |
| 2284 | } else if (leftuvok && rightuvok) { /* ## UV <=> UV ## */ | |
| 1b6737cc AL |
2285 | const UV leftuv = SvUVX(TOPm1s); |
| 2286 | const UV rightuv = SvUVX(TOPs); | |
| 28e5dec8 JH |
2287 | |
| 2288 | if (leftuv > rightuv) | |
| 2289 | value = 1; | |
| 2290 | else if (leftuv < rightuv) | |
| 2291 | value = -1; | |
| 2292 | else | |
| 2293 | value = 0; | |
| 2294 | } else if (leftuvok) { /* ## UV <=> IV ## */ | |
| 1b6737cc | 2295 | const IV rightiv = SvIVX(TOPs); |
| 28e5dec8 JH |
2296 | if (rightiv < 0) { |
| 2297 | /* As (a) is a UV, it's >=0, so it cannot be < */ | |
| 2298 | value = 1; | |
| 2299 | } else { | |
| 1b6737cc | 2300 | const UV leftuv = SvUVX(TOPm1s); |
| 83bac5dd | 2301 | if (leftuv > (UV)rightiv) { |
| 28e5dec8 JH |
2302 | value = 1; |
| 2303 | } else if (leftuv < (UV)rightiv) { | |
| 2304 | value = -1; | |
| 2305 | } else { | |
| 2306 | value = 0; | |
| 2307 | } | |
| 2308 | } | |
| 2309 | } else { /* ## IV <=> UV ## */ | |
| 1b6737cc | 2310 | const IV leftiv = SvIVX(TOPm1s); |
| 28e5dec8 JH |
2311 | if (leftiv < 0) { |
| 2312 | /* As (b) is a UV, it's >=0, so it must be < */ | |
| 2313 | value = -1; | |
| 2314 | } else { | |
| 1b6737cc | 2315 | const UV rightuv = SvUVX(TOPs); |
| 83bac5dd | 2316 | if ((UV)leftiv > rightuv) { |
| 28e5dec8 | 2317 | value = 1; |
| 83bac5dd | 2318 | } else if ((UV)leftiv < rightuv) { |
| 28e5dec8 JH |
2319 | value = -1; |
| 2320 | } else { | |
| 2321 | value = 0; | |
| 2322 | } | |
| 2323 | } | |
| 2324 | } | |
| 2325 | SP--; | |
| 2326 | SETi(value); | |
| 2327 | RETURN; | |
| 2328 | } | |
| 2329 | } | |
| 2330 | #endif | |
| a0d0e21e | 2331 | { |
| 6f1401dc | 2332 | dPOPTOPnnrl_nomg; |
| a0d0e21e | 2333 | I32 value; |
| 79072805 | 2334 | |
| a3540c92 | 2335 | #ifdef Perl_isnan |
| 1ad04cfd JH |
2336 | if (Perl_isnan(left) || Perl_isnan(right)) { |
| 2337 | SETs(&PL_sv_undef); | |
| 2338 | RETURN; | |
| 2339 | } | |
| 2340 | value = (left > right) - (left < right); | |
| 2341 | #else | |
| ff0cee69 | 2342 | if (left == right) |
| a0d0e21e | 2343 | value = 0; |
| a0d0e21e LW |
2344 | else if (left < right) |
| 2345 | value = -1; | |
| 44a8e56a PP |
2346 | else if (left > right) |
| 2347 | value = 1; | |
| 2348 | else { | |
| 3280af22 | 2349 | SETs(&PL_sv_undef); |
| 44a8e56a PP |
2350 | RETURN; |
| 2351 | } | |
| 1ad04cfd | 2352 | #endif |
| a0d0e21e LW |
2353 | SETi(value); |
| 2354 | RETURN; | |
| 79072805 | 2355 | } |
| a0d0e21e | 2356 | } |
| 79072805 | 2357 | |
| afd9910b | 2358 | PP(pp_sle) |
| a0d0e21e | 2359 | { |
| 97aff369 | 2360 | dVAR; dSP; |
| 79072805 | 2361 | |
| afd9910b NC |
2362 | int amg_type = sle_amg; |
| 2363 | int multiplier = 1; | |
| 2364 | int rhs = 1; | |
| 79072805 | 2365 | |
| afd9910b NC |
2366 | switch (PL_op->op_type) { |
| 2367 | case OP_SLT: | |
| 2368 | amg_type = slt_amg; | |
| 2369 | /* cmp < 0 */ | |
| 2370 | rhs = 0; | |
| 2371 | break; | |
| 2372 | case OP_SGT: | |
| 2373 | amg_type = sgt_amg; | |
| 2374 | /* cmp > 0 */ | |
| 2375 | multiplier = -1; | |
| 2376 | rhs = 0; | |
| 2377 | break; | |
| 2378 | case OP_SGE: | |
| 2379 | amg_type = sge_amg; | |
| 2380 | /* cmp >= 0 */ | |
| 2381 | multiplier = -1; | |
| 2382 | break; | |
| 79072805 | 2383 | } |
| 79072805 | 2384 | |
| 6f1401dc | 2385 | tryAMAGICbin_MG(amg_type, AMGf_set); |
| a0d0e21e LW |
2386 | { |
| 2387 | dPOPTOPssrl; | |
| 1b6737cc | 2388 | const int cmp = (IN_LOCALE_RUNTIME |
| 078504b2 FC |
2389 | ? sv_cmp_locale_flags(left, right, 0) |
| 2390 | : sv_cmp_flags(left, right, 0)); | |
| afd9910b | 2391 | SETs(boolSV(cmp * multiplier < rhs)); |
| a0d0e21e LW |
2392 | RETURN; |
| 2393 | } | |
| 2394 | } | |
| 79072805 | 2395 | |
| 36477c24 PP |
2396 | PP(pp_seq) |
| 2397 | { | |
| 6f1401dc DM |
2398 | dVAR; dSP; |
| 2399 | tryAMAGICbin_MG(seq_amg, AMGf_set); | |
| 36477c24 PP |
2400 | { |
| 2401 | dPOPTOPssrl; | |
| 078504b2 | 2402 | SETs(boolSV(sv_eq_flags(left, right, 0))); |
| a0d0e21e LW |
2403 | RETURN; |
| 2404 | } | |
| 2405 | } | |
| 79072805 | 2406 | |
| a0d0e21e | 2407 | PP(pp_sne) |
| 79072805 | 2408 | { |
| 6f1401dc DM |
2409 | dVAR; dSP; |
| 2410 | tryAMAGICbin_MG(sne_amg, AMGf_set); | |
| a0d0e21e LW |
2411 | { |
| 2412 | dPOPTOPssrl; | |
| 078504b2 | 2413 | SETs(boolSV(!sv_eq_flags(left, right, 0))); |
| a0d0e21e | 2414 | RETURN; |
| 463ee0b2 | 2415 | } |
| 79072805 LW |
2416 | } |
| 2417 | ||
| a0d0e21e | 2418 | PP(pp_scmp) |
| 79072805 | 2419 | { |
| 6f1401dc DM |
2420 | dVAR; dSP; dTARGET; |
| 2421 | tryAMAGICbin_MG(scmp_amg, 0); | |
| a0d0e21e LW |
2422 | { |
| 2423 | dPOPTOPssrl; | |
| 1b6737cc | 2424 | const int cmp = (IN_LOCALE_RUNTIME |
| 078504b2 FC |
2425 | ? sv_cmp_locale_flags(left, right, 0) |
| 2426 | : sv_cmp_flags(left, right, 0)); | |
| bbce6d69 | 2427 | SETi( cmp ); |
| a0d0e21e LW |
2428 | RETURN; |
| 2429 | } | |
| 2430 | } | |
| 79072805 | 2431 | |
| 55497cff PP |
2432 | PP(pp_bit_and) |
| 2433 | { | |
| 6f1401dc DM |
2434 | dVAR; dSP; dATARGET; |
| 2435 | tryAMAGICbin_MG(band_amg, AMGf_assign); | |
| a0d0e21e LW |
2436 | { |
| 2437 | dPOPTOPssrl; | |
| 4633a7c4 | 2438 | if (SvNIOKp(left) || SvNIOKp(right)) { |
| b20c4ee1 FC |
2439 | const bool left_ro_nonnum = !SvNIOKp(left) && SvREADONLY(left); |
| 2440 | const bool right_ro_nonnum = !SvNIOKp(right) && SvREADONLY(right); | |
| d0ba1bd2 | 2441 | if (PL_op->op_private & HINT_INTEGER) { |
| 1b6737cc | 2442 | const IV i = SvIV_nomg(left) & SvIV_nomg(right); |
| 972b05a9 | 2443 | SETi(i); |
| d0ba1bd2 JH |
2444 | } |
| 2445 | else { | |
| 1b6737cc | 2446 | const UV u = SvUV_nomg(left) & SvUV_nomg(right); |
| 972b05a9 | 2447 | SETu(u); |
| d0ba1bd2 | 2448 | } |
| b20c4ee1 FC |
2449 | if (left_ro_nonnum) SvNIOK_off(left); |
| 2450 | if (right_ro_nonnum) SvNIOK_off(right); | |
| a0d0e21e LW |
2451 | } |
| 2452 | else { | |
| 533c011a | 2453 | do_vop(PL_op->op_type, TARG, left, right); |
| a0d0e21e LW |
2454 | SETTARG; |
| 2455 | } | |
| 2456 | RETURN; | |
| 2457 | } | |
| 2458 | } | |
| 79072805 | 2459 | |
| a0d0e21e LW |
2460 | PP(pp_bit_or) |
| 2461 | { | |
| 3658c1f1 NC |
2462 | dVAR; dSP; dATARGET; |
| 2463 | const int op_type = PL_op->op_type; | |
| 2464 | ||
| 6f1401dc | 2465 | tryAMAGICbin_MG((op_type == OP_BIT_OR ? bor_amg : bxor_amg), AMGf_assign); |
| a0d0e21e LW |
2466 | { |
| 2467 | dPOPTOPssrl; | |
| 4633a7c4 | 2468 | if (SvNIOKp(left) || SvNIOKp(right)) { |
| b20c4ee1 FC |
2469 | const bool left_ro_nonnum = !SvNIOKp(left) && SvREADONLY(left); |
| 2470 | const bool right_ro_nonnum = !SvNIOKp(right) && SvREADONLY(right); | |
| d0ba1bd2 | 2471 | if (PL_op->op_private & HINT_INTEGER) { |
| 3658c1f1 NC |
2472 | const IV l = (USE_LEFT(left) ? SvIV_nomg(left) : 0); |
| 2473 | const IV r = SvIV_nomg(right); | |
| 2474 | const IV result = op_type == OP_BIT_OR ? (l | r) : (l ^ r); | |
| 2475 | SETi(result); | |
| d0ba1bd2 JH |
2476 | } |
| 2477 | else { | |
| 3658c1f1 NC |
2478 | const UV l = (USE_LEFT(left) ? SvUV_nomg(left) : 0); |
| 2479 | const UV r = SvUV_nomg(right); | |
| 2480 | const UV result = op_type == OP_BIT_OR ? (l | r) : (l ^ r); | |
| 2481 | SETu(result); | |
| d0ba1bd2 | 2482 | } |
| b20c4ee1 FC |
2483 | if (left_ro_nonnum) SvNIOK_off(left); |
| 2484 | if (right_ro_nonnum) SvNIOK_off(right); | |
| a0d0e21e LW |
2485 | } |
| 2486 | else { | |
| 3658c1f1 | 2487 | do_vop(op_type, TARG, left, right); |
| a0d0e21e LW |
2488 | SETTARG; |
| 2489 | } | |
| 2490 | RETURN; | |
| 79072805 | 2491 | } |
| a0d0e21e | 2492 | } |
| 79072805 | 2493 | |
| a0d0e21e LW |
2494 | PP(pp_negate) |
| 2495 | { | |
| 6f1401dc DM |
2496 | dVAR; dSP; dTARGET; |
| 2497 | tryAMAGICun_MG(neg_amg, AMGf_numeric); | |
| a0d0e21e | 2498 | { |
| 6f1401dc | 2499 | SV * const sv = TOPs; |
| 1b6737cc | 2500 | const int flags = SvFLAGS(sv); |
| a5b92898 | 2501 | |
| 886a4465 | 2502 | if( !SvNIOK( sv ) && looks_like_number( sv ) ){ |
| a5b92898 R |
2503 | SvIV_please( sv ); |
| 2504 | } | |
| 2505 | ||
| 28e5dec8 JH |
2506 | if ((flags & SVf_IOK) || ((flags & (SVp_IOK | SVp_NOK)) == SVp_IOK)) { |
| 2507 | /* It's publicly an integer, or privately an integer-not-float */ | |
| 2508 | oops_its_an_int: | |
| 9b0e499b GS |
2509 | if (SvIsUV(sv)) { |
| 2510 | if (SvIVX(sv) == IV_MIN) { | |
| 28e5dec8 | 2511 | /* 2s complement assumption. */ |
| 9b0e499b GS |
2512 | SETi(SvIVX(sv)); /* special case: -((UV)IV_MAX+1) == IV_MIN */ |
| 2513 | RETURN; | |
| 2514 | } | |
| 2515 | else if (SvUVX(sv) <= IV_MAX) { | |
| beccb14c | 2516 | SETi(-SvIVX(sv)); |
| 9b0e499b GS |
2517 | RETURN; |
| 2518 | } | |
| 2519 | } | |
| 2520 | else if (SvIVX(sv) != IV_MIN) { | |
| 2521 | SETi(-SvIVX(sv)); | |
| 2522 | RETURN; | |
| 2523 | } | |
| 28e5dec8 JH |
2524 | #ifdef PERL_PRESERVE_IVUV |
| 2525 | else { | |
| 2526 | SETu((UV)IV_MIN); | |
| 2527 | RETURN; | |
| 2528 | } | |
| 2529 | #endif | |
| 9b0e499b GS |
2530 | } |
| 2531 | if (SvNIOKp(sv)) | |
| 6f1401dc | 2532 | SETn(-SvNV_nomg(sv)); |
| 4633a7c4 | 2533 | else if (SvPOKp(sv)) { |
| a0d0e21e | 2534 | STRLEN len; |
| 6f1401dc | 2535 | const char * const s = SvPV_nomg_const(sv, len); |
| bbce6d69 | 2536 | if (isIDFIRST(*s)) { |
| 76f68e9b | 2537 | sv_setpvs(TARG, "-"); |
| a0d0e21e | 2538 | sv_catsv(TARG, sv); |
| 79072805 | 2539 | } |
| a0d0e21e | 2540 | else if (*s == '+' || *s == '-') { |
| 6f1401dc DM |
2541 | sv_setsv_nomg(TARG, sv); |
| 2542 | *SvPV_force_nomg(TARG, len) = *s == '-' ? '+' : '-'; | |
| 79072805 | 2543 | } |
| 8eb28a70 | 2544 | else if (DO_UTF8(sv)) { |
| 6f1401dc | 2545 | SvIV_please_nomg(sv); |
| 8eb28a70 JH |
2546 | if (SvIOK(sv)) |
| 2547 | goto oops_its_an_int; | |
| 2548 | if (SvNOK(sv)) | |
| 6f1401dc | 2549 | sv_setnv(TARG, -SvNV_nomg(sv)); |
| 8eb28a70 | 2550 | else { |
| 76f68e9b | 2551 | sv_setpvs(TARG, "-"); |
| 8eb28a70 JH |
2552 | sv_catsv(TARG, sv); |
| 2553 | } | |
| 834a4ddd | 2554 | } |
| 28e5dec8 | 2555 | else { |
| 6f1401dc | 2556 | SvIV_please_nomg(sv); |
| 8eb28a70 JH |
2557 | if (SvIOK(sv)) |
| 2558 | goto oops_its_an_int; | |
| 6f1401dc | 2559 | sv_setnv(TARG, -SvNV_nomg(sv)); |
| 28e5dec8 | 2560 | } |
| a0d0e21e | 2561 | SETTARG; |
| 79072805 | 2562 | } |
| 4633a7c4 | 2563 | else |
| 6f1401dc | 2564 | SETn(-SvNV_nomg(sv)); |
| 79072805 | 2565 | } |
| a0d0e21e | 2566 | RETURN; |
| 79072805 LW |
2567 | } |
| 2568 | ||
| a0d0e21e | 2569 | PP(pp_not) |
| 79072805 | 2570 | { |
| 6f1401dc DM |
2571 | dVAR; dSP; |
| 2572 | tryAMAGICun_MG(not_amg, AMGf_set); | |
| 06c841cf | 2573 | *PL_stack_sp = boolSV(!SvTRUE_nomg(*PL_stack_sp)); |
| a0d0e21e | 2574 | return NORMAL; |
| 79072805 LW |
2575 | } |
| 2576 | ||
| a0d0e21e | 2577 | PP(pp_complement) |
| 79072805 | 2578 | { |
| 6f1401dc | 2579 | dVAR; dSP; dTARGET; |
| a42d0242 | 2580 | tryAMAGICun_MG(compl_amg, AMGf_numeric); |
| a0d0e21e LW |
2581 | { |
| 2582 | dTOPss; | |
| 4633a7c4 | 2583 | if (SvNIOKp(sv)) { |
| d0ba1bd2 | 2584 | if (PL_op->op_private & HINT_INTEGER) { |
| 1b6737cc | 2585 | const IV i = ~SvIV_nomg(sv); |
| 972b05a9 | 2586 | SETi(i); |
| d0ba1bd2 JH |
2587 | } |
| 2588 | else { | |
| 1b6737cc | 2589 | const UV u = ~SvUV_nomg(sv); |
| 972b05a9 | 2590 | SETu(u); |
| d0ba1bd2 | 2591 | } |
| a0d0e21e LW |
2592 | } |
| 2593 | else { | |
| 51723571 | 2594 | register U8 *tmps; |
| 55497cff | 2595 | register I32 anum; |
| a0d0e21e LW |
2596 | STRLEN len; |
| 2597 | ||
| 10516c54 | 2598 | (void)SvPV_nomg_const(sv,len); /* force check for uninit var */ |
| 891f9566 | 2599 | sv_setsv_nomg(TARG, sv); |
| 6f1401dc | 2600 | tmps = (U8*)SvPV_force_nomg(TARG, len); |
| a0d0e21e | 2601 | anum = len; |
| 1d68d6cd | 2602 | if (SvUTF8(TARG)) { |
| a1ca4561 | 2603 | /* Calculate exact length, let's not estimate. */ |
| 1d68d6cd | 2604 | STRLEN targlen = 0; |
| ba210ebe | 2605 | STRLEN l; |
| a1ca4561 YST |
2606 | UV nchar = 0; |
| 2607 | UV nwide = 0; | |
| 01f6e806 | 2608 | U8 * const send = tmps + len; |
| 74d49cd0 ST |
2609 | U8 * const origtmps = tmps; |
| 2610 | const UV utf8flags = UTF8_ALLOW_ANYUV; | |
| 1d68d6cd | 2611 | |
| 1d68d6cd | 2612 | while (tmps < send) { |
| 74d49cd0 ST |
2613 | const UV c = utf8n_to_uvchr(tmps, send-tmps, &l, utf8flags); |
| 2614 | tmps += l; | |
| 5bbb0b5a | 2615 | targlen += UNISKIP(~c); |
| a1ca4561 YST |
2616 | nchar++; |
| 2617 | if (c > 0xff) | |
| 2618 | nwide++; | |
| 1d68d6cd SC |
2619 | } |
| 2620 | ||
| 2621 | /* Now rewind strings and write them. */ | |
| 74d49cd0 | 2622 | tmps = origtmps; |
| a1ca4561 YST |
2623 | |
| 2624 | if (nwide) { | |
| 01f6e806 AL |
2625 | U8 *result; |
| 2626 | U8 *p; | |
| 2627 | ||
| 74d49cd0 | 2628 | Newx(result, targlen + 1, U8); |
| 01f6e806 | 2629 | p = result; |
| a1ca4561 | 2630 | while (tmps < send) { |
| 74d49cd0 ST |
2631 | const UV c = utf8n_to_uvchr(tmps, send-tmps, &l, utf8flags); |
| 2632 | tmps += l; | |
| 01f6e806 | 2633 | p = uvchr_to_utf8_flags(p, ~c, UNICODE_ALLOW_ANY); |
| a1ca4561 | 2634 | } |
| 01f6e806 | 2635 | *p = '\0'; |
| c1c21316 NC |
2636 | sv_usepvn_flags(TARG, (char*)result, targlen, |
| 2637 | SV_HAS_TRAILING_NUL); | |
| a1ca4561 YST |
2638 | SvUTF8_on(TARG); |
| 2639 | } | |
| 2640 | else { | |
| 01f6e806 AL |
2641 | U8 *result; |
| 2642 | U8 *p; | |
| 2643 | ||
| 74d49cd0 | 2644 | Newx(result, nchar + 1, U8); |
| 01f6e806 | 2645 | p = result; |
| a1ca4561 | 2646 | while (tmps < send) { |
| 74d49cd0 ST |
2647 | const U8 c = (U8)utf8n_to_uvchr(tmps, send-tmps, &l, utf8flags); |
| 2648 | tmps += l; | |
| 01f6e806 | 2649 | *p++ = ~c; |
| a1ca4561 | 2650 | } |
| 01f6e806 | 2651 | *p = '\0'; |
| c1c21316 | 2652 | sv_usepvn_flags(TARG, (char*)result, nchar, SV_HAS_TRAILING_NUL); |
| d0a21e00 | 2653 | SvUTF8_off(TARG); |
| 1d68d6cd | 2654 | } |
| ec93b65f | 2655 | SETTARG; |
| 1d68d6cd SC |
2656 | RETURN; |
| 2657 | } | |
| a0d0e21e | 2658 | #ifdef LIBERAL |
| 51723571 JH |
2659 | { |
| 2660 | register long *tmpl; | |
| 2661 | for ( ; anum && (unsigned long)tmps % sizeof(long); anum--, tmps++) | |
| 2662 | *tmps = ~*tmps; | |
| 2663 | tmpl = (long*)tmps; | |
| bb7a0f54 | 2664 | for ( ; anum >= (I32)sizeof(long); anum -= (I32)sizeof(long), tmpl++) |
| 51723571 JH |
2665 | *tmpl = ~*tmpl; |
| 2666 | tmps = (U8*)tmpl; | |
| 2667 | } | |
| a0d0e21e LW |
2668 | #endif |
| 2669 | for ( ; anum > 0; anum--, tmps++) | |
| 2670 | *tmps = ~*tmps; | |
| ec93b65f | 2671 | SETTARG; |
| a0d0e21e LW |
2672 | } |
| 2673 | RETURN; | |
| 2674 | } | |
| 79072805 LW |
2675 | } |
| 2676 | ||
| a0d0e21e LW |
2677 | /* integer versions of some of the above */ |
| 2678 | ||
| a0d0e21e | 2679 | PP(pp_i_multiply) |
| 79072805 | 2680 | { |
| 6f1401dc DM |
2681 | dVAR; dSP; dATARGET; |
| 2682 | tryAMAGICbin_MG(mult_amg, AMGf_assign); | |
| a0d0e21e | 2683 | { |
| 6f1401dc | 2684 | dPOPTOPiirl_nomg; |
| a0d0e21e LW |
2685 | SETi( left * right ); |
| 2686 | RETURN; | |
| 2687 | } | |
| 79072805 LW |
2688 | } |
| 2689 | ||
| a0d0e21e | 2690 | PP(pp_i_divide) |
| 79072805 | 2691 | { |
| ece1bcef | 2692 | IV num; |
| 6f1401dc DM |
2693 | dVAR; dSP; dATARGET; |
| 2694 | tryAMAGICbin_MG(div_amg, AMGf_assign); | |
| a0d0e21e | 2695 | { |
| 6f1401dc DM |
2696 | dPOPTOPssrl; |
| 2697 | IV value = SvIV_nomg(right); | |
| a0d0e21e | 2698 | if (value == 0) |
| ece1bcef | 2699 | DIE(aTHX_ "Illegal division by zero"); |
| 6f1401dc | 2700 | num = SvIV_nomg(left); |
| a0cec769 YST |
2701 | |
| 2702 | /* avoid FPE_INTOVF on some platforms when num is IV_MIN */ | |
| 2703 | if (value == -1) | |
| 2704 | value = - num; | |
| 2705 | else | |
| 2706 | value = num / value; | |
| 6f1401dc | 2707 | SETi(value); |
| a0d0e21e LW |
2708 | RETURN; |
| 2709 | } | |
| 79072805 LW |
2710 | } |
| 2711 | ||
| befad5d1 | 2712 | #if defined(__GLIBC__) && IVSIZE == 8 |
| 224ec323 JH |
2713 | STATIC |
| 2714 | PP(pp_i_modulo_0) | |
| befad5d1 NC |
2715 | #else |
| 2716 | PP(pp_i_modulo) | |
| 2717 | #endif | |
| 224ec323 JH |
2718 | { |
| 2719 | /* This is the vanilla old i_modulo. */ | |
| 6f1401dc DM |
2720 | dVAR; dSP; dATARGET; |
| 2721 | tryAMAGICbin_MG(modulo_amg, AMGf_assign); | |
| 224ec323 | 2722 | { |
| 6f1401dc | 2723 | dPOPTOPiirl_nomg; |
| 224ec323 JH |
2724 | if (!right) |
| 2725 | DIE(aTHX_ "Illegal modulus zero"); | |
| a0cec769 YST |
2726 | /* avoid FPE_INTOVF on some platforms when left is IV_MIN */ |
| 2727 | if (right == -1) | |
| 2728 | SETi( 0 ); | |
| 2729 | else | |
| 2730 | SETi( left % right ); | |
| 224ec323 JH |
2731 | RETURN; |
| 2732 | } | |
| 2733 | } | |
| 2734 | ||
| 11010fa3 | 2735 | #if defined(__GLIBC__) && IVSIZE == 8 |
| 224ec323 JH |
2736 | STATIC |
| 2737 | PP(pp_i_modulo_1) | |
| befad5d1 | 2738 | |
| 224ec323 | 2739 | { |
| 224ec323 | 2740 | /* This is the i_modulo with the workaround for the _moddi3 bug |
| fce2b89e | 2741 | * in (at least) glibc 2.2.5 (the PERL_ABS() the workaround). |
| 224ec323 | 2742 | * See below for pp_i_modulo. */ |
| 6f1401dc DM |
2743 | dVAR; dSP; dATARGET; |
| 2744 | tryAMAGICbin_MG(modulo_amg, AMGf_assign); | |
| 224ec323 | 2745 | { |
| 6f1401dc | 2746 | dPOPTOPiirl_nomg; |
| 224ec323 JH |
2747 | if (!right) |
| 2748 | DIE(aTHX_ "Illegal modulus zero"); | |
| a0cec769 YST |
2749 | /* avoid FPE_INTOVF on some platforms when left is IV_MIN */ |
| 2750 | if (right == -1) | |
| 2751 | SETi( 0 ); | |
| 2752 | else | |
| 2753 | SETi( left % PERL_ABS(right) ); | |
| 224ec323 JH |
2754 | RETURN; |
| 2755 | } | |
| 224ec323 JH |
2756 | } |
| 2757 | ||
| a0d0e21e | 2758 | PP(pp_i_modulo) |
| 79072805 | 2759 | { |
| 6f1401dc DM |
2760 | dVAR; dSP; dATARGET; |
| 2761 | tryAMAGICbin_MG(modulo_amg, AMGf_assign); | |
| 224ec323 | 2762 | { |
| 6f1401dc | 2763 | dPOPTOPiirl_nomg; |
| 224ec323 JH |
2764 | if (!right) |
| 2765 | DIE(aTHX_ "Illegal modulus zero"); | |
| 2766 | /* The assumption is to use hereafter the old vanilla version... */ | |
| 2767 | PL_op->op_ppaddr = | |
| 2768 | PL_ppaddr[OP_I_MODULO] = | |
| 1c127fab | 2769 | Perl_pp_i_modulo_0; |
| 224ec323 JH |
2770 | /* .. but if we have glibc, we might have a buggy _moddi3 |
| 2771 | * (at least glicb 2.2.5 is known to have this bug), in other | |
| 2772 | * words our integer modulus with negative quad as the second | |
| 2773 | * argument might be broken. Test for this and re-patch the | |
| 2774 | * opcode dispatch table if that is the case, remembering to | |
| 2775 | * also apply the workaround so that this first round works | |
| 2776 | * right, too. See [perl #9402] for more information. */ | |
| 224ec323 JH |
2777 | { |
| 2778 | IV l = 3; | |
| 2779 | IV r = -10; | |
| 2780 | /* Cannot do this check with inlined IV constants since | |
| 2781 | * that seems to work correctly even with the buggy glibc. */ | |
| 2782 | if (l % r == -3) { | |
| 2783 | /* Yikes, we have the bug. | |
| 2784 | * Patch in the workaround version. */ | |
| 2785 | PL_op->op_ppaddr = | |
| 2786 | PL_ppaddr[OP_I_MODULO] = | |
| 2787 | &Perl_pp_i_modulo_1; | |
| 2788 | /* Make certain we work right this time, too. */ | |
| 32fdb065 | 2789 | right = PERL_ABS(right); |
| 224ec323 JH |
2790 | } |
| 2791 | } | |
| a0cec769 YST |
2792 | /* avoid FPE_INTOVF on some platforms when left is IV_MIN */ |
| 2793 | if (right == -1) | |
| 2794 | SETi( 0 ); | |
| 2795 | else | |
| 2796 | SETi( left % right ); | |
| 224ec323 JH |
2797 | RETURN; |
| 2798 | } | |
| 79072805 | 2799 | } |
| befad5d1 | 2800 | #endif |
| 79072805 | 2801 | |
| a0d0e21e | 2802 | PP(pp_i_add) |
| 79072805 | 2803 | { |
| 6f1401dc DM |
2804 | dVAR; dSP; dATARGET; |
| 2805 | tryAMAGICbin_MG(add_amg, AMGf_assign); | |
| a0d0e21e | 2806 | { |
| 6f1401dc | 2807 | dPOPTOPiirl_ul_nomg; |
| a0d0e21e LW |
2808 | SETi( left + right ); |
| 2809 | RETURN; | |
| 79072805 | 2810 | } |
| 79072805 LW |
2811 | } |
| 2812 | ||
| a0d0e21e | 2813 | PP(pp_i_subtract) |
| 79072805 | 2814 | { |
| 6f1401dc DM |
2815 | dVAR; dSP; dATARGET; |
| 2816 | tryAMAGICbin_MG(subtr_amg, AMGf_assign); | |
| a0d0e21e | 2817 | { |
| 6f1401dc | 2818 | dPOPTOPiirl_ul_nomg; |
| a0d0e21e LW |
2819 | SETi( left - right ); |
| 2820 | RETURN; | |
| 79072805 | 2821 | } |
| 79072805 LW |
2822 | } |
| 2823 | ||
| a0d0e21e | 2824 | PP(pp_i_lt) |
| 79072805 | 2825 | { |
| 6f1401dc DM |
2826 | dVAR; dSP; |
| 2827 | tryAMAGICbin_MG(lt_amg, AMGf_set); | |
| a0d0e21e | 2828 | { |
| 6f1401dc | 2829 | dPOPTOPiirl_nomg; |
| 54310121 | 2830 | SETs(boolSV(left < right)); |
| a0d0e21e LW |
2831 | RETURN; |
| 2832 | } | |
| 79072805 LW |
2833 | } |
| 2834 | ||
| a0d0e21e | 2835 | PP(pp_i_gt) |
| 79072805 | 2836 | { |
| 6f1401dc DM |
2837 | dVAR; dSP; |
| 2838 | tryAMAGICbin_MG(gt_amg, AMGf_set); | |
| a0d0e21e | 2839 | { |
| 6f1401dc | 2840 | dPOPTOPiirl_nomg; |
| 54310121 | 2841 | SETs(boolSV(left > right)); |
| a0d0e21e LW |
2842 | RETURN; |
| 2843 | } | |
| 79072805 LW |
2844 | } |
| 2845 | ||
| a0d0e21e | 2846 | PP(pp_i_le) |
| 79072805 | 2847 | { |
| 6f1401dc DM |
2848 | dVAR; dSP; |
| 2849 | tryAMAGICbin_MG(le_amg, AMGf_set); | |
| a0d0e21e | 2850 | { |
| 6f1401dc | 2851 | dPOPTOPiirl_nomg; |
| 54310121 | 2852 | SETs(boolSV(left <= right)); |
| a0d0e21e | 2853 | RETURN; |
| 85e6fe83 | 2854 | } |
| 79072805 LW |
2855 | } |
| 2856 | ||
| a0d0e21e | 2857 | PP(pp_i_ge) |
| 79072805 | 2858 | { |
| 6f1401dc DM |
2859 | dVAR; dSP; |
| 2860 | tryAMAGICbin_MG(ge_amg, AMGf_set); | |
| a0d0e21e | 2861 | { |
| 6f1401dc | 2862 | dPOPTOPiirl_nomg; |
| 54310121 | 2863 | SETs(boolSV(left >= right)); |
| a0d0e21e LW |
2864 | RETURN; |
| 2865 | } | |
| 79072805 LW |
2866 | } |
| 2867 | ||
| a0d0e21e | 2868 | PP(pp_i_eq) |
| 79072805 | 2869 | { |
| 6f1401dc DM |
2870 | dVAR; dSP; |
| 2871 | tryAMAGICbin_MG(eq_amg, AMGf_set); | |
| a0d0e21e | 2872 | { |
| 6f1401dc | 2873 | dPOPTOPiirl_nomg; |
| 54310121 | 2874 | SETs(boolSV(left == right)); |
| a0d0e21e LW |
2875 | RETURN; |
| 2876 | } | |
| 79072805 LW |
2877 | } |
| 2878 | ||
| a0d0e21e | 2879 | PP(pp_i_ne) |
| 79072805 | 2880 | { |
| 6f1401dc DM |
2881 | dVAR; dSP; |
| 2882 | tryAMAGICbin_MG(ne_amg, AMGf_set); | |
| a0d0e21e | 2883 | { |
| 6f1401dc | 2884 | dPOPTOPiirl_nomg; |
| 54310121 | 2885 | SETs(boolSV(left != right)); |
| a0d0e21e LW |
2886 | RETURN; |
| 2887 | } | |
| 79072805 LW |
2888 | } |
| 2889 | ||
| a0d0e21e | 2890 | PP(pp_i_ncmp) |
| 79072805 | 2891 | { |
| 6f1401dc DM |
2892 | dVAR; dSP; dTARGET; |
| 2893 | tryAMAGICbin_MG(ncmp_amg, 0); | |
| a0d0e21e | 2894 | { |
| 6f1401dc | 2895 | dPOPTOPiirl_nomg; |
| a0d0e21e | 2896 | I32 value; |
| 79072805 | 2897 | |
| a0d0e21e | 2898 | if (left > right) |
| 79072805 | 2899 | value = 1; |
| a0d0e21e | 2900 | else if (left < right) |
| 79072805 | 2901 | value = -1; |
| a0d0e21e | 2902 | else |
| 79072805 | 2903 | value = 0; |
| a0d0e21e LW |
2904 | SETi(value); |
| 2905 | RETURN; | |
| 79072805 | 2906 | } |
| 85e6fe83 LW |
2907 | } |
| 2908 | ||
| 2909 | PP(pp_i_negate) | |
| 2910 | { | |
| 6f1401dc DM |
2911 | dVAR; dSP; dTARGET; |
| 2912 | tryAMAGICun_MG(neg_amg, 0); | |
| 2913 | { | |
| 2914 | SV * const sv = TOPs; | |
| 2915 | IV const i = SvIV_nomg(sv); | |
| 2916 | SETi(-i); | |
| 2917 | RETURN; | |
| 2918 | } | |
| 85e6fe83 LW |
2919 | } |
| 2920 | ||
| 79072805 LW |
2921 | /* High falutin' math. */ |
| 2922 | ||
| 2923 | PP(pp_atan2) | |
| 2924 | { | |
| 6f1401dc DM |
2925 | dVAR; dSP; dTARGET; |
| 2926 | tryAMAGICbin_MG(atan2_amg, 0); | |
| a0d0e21e | 2927 | { |
| 6f1401dc | 2928 | dPOPTOPnnrl_nomg; |
| a1021d57 | 2929 | SETn(Perl_atan2(left, right)); |
| a0d0e21e LW |
2930 | RETURN; |
| 2931 | } | |
| 79072805 LW |
2932 | } |
| 2933 | ||
| 2934 | PP(pp_sin) | |
| 2935 | { | |
| 71302fe3 NC |
2936 | dVAR; dSP; dTARGET; |
| 2937 | int amg_type = sin_amg; | |
| 2938 | const char *neg_report = NULL; | |
| bc81784a | 2939 | NV (*func)(NV) = Perl_sin; |
| 71302fe3 NC |
2940 | const int op_type = PL_op->op_type; |
| 2941 | ||
| 2942 | switch (op_type) { | |
| 2943 | case OP_COS: | |
| 2944 | amg_type = cos_amg; | |
| bc81784a | 2945 | func = Perl_cos; |
| 71302fe3 NC |
2946 | break; |
| 2947 | case OP_EXP: | |
| 2948 | amg_type = exp_amg; | |
| bc81784a | 2949 | func = Perl_exp; |
| 71302fe3 NC |
2950 | break; |
| 2951 | case OP_LOG: | |
| 2952 | amg_type = log_amg; | |
| bc81784a | 2953 | func = Perl_log; |
| 71302fe3 NC |
2954 | neg_report = "log"; |
| 2955 | break; | |
| 2956 | case OP_SQRT: | |
| 2957 | amg_type = sqrt_amg; | |
| bc81784a | 2958 | func = Perl_sqrt; |
| 71302fe3 NC |
2959 | neg_report = "sqrt"; |
| 2960 | break; | |
| a0d0e21e | 2961 | } |
| 79072805 | 2962 | |
| 6f1401dc DM |
2963 | |
| 2964 | tryAMAGICun_MG(amg_type, 0); | |
| a0d0e21e | 2965 | { |
| 6f1401dc DM |
2966 | SV * const arg = POPs; |
| 2967 | const NV value = SvNV_nomg(arg); | |
| 71302fe3 NC |
2968 | if (neg_report) { |
| 2969 | if (op_type == OP_LOG ? (value <= 0.0) : (value < 0.0)) { | |
| 2970 | SET_NUMERIC_STANDARD(); | |
| 2971 | DIE(aTHX_ "Can't take %s of %"NVgf, neg_report, value); | |
| 2972 | } | |
| 2973 | } | |
| 2974 | XPUSHn(func(value)); | |
| a0d0e21e LW |
2975 | RETURN; |
| 2976 | } | |
| 79072805 LW |
2977 | } |
| 2978 | ||
| 56cb0a1c AD |
2979 | /* Support Configure command-line overrides for rand() functions. |
| 2980 | After 5.005, perhaps we should replace this by Configure support | |
| 2981 | for drand48(), random(), or rand(). For 5.005, though, maintain | |
| 2982 | compatibility by calling rand() but allow the user to override it. | |
| 2983 | See INSTALL for details. --Andy Dougherty 15 July 1998 | |
| 2984 | */ | |
| 85ab1d1d JH |
2985 | /* Now it's after 5.005, and Configure supports drand48() and random(), |
| 2986 | in addition to rand(). So the overrides should not be needed any more. | |
| 2987 | --Jarkko Hietaniemi 27 September 1998 | |
| 2988 | */ | |
| 2989 | ||
| 2990 | #ifndef HAS_DRAND48_PROTO | |
| 20ce7b12 | 2991 | extern double drand48 (void); |
| 56cb0a1c AD |
2992 | #endif |
| 2993 | ||
| 79072805 LW |
2994 | PP(pp_rand) |
| 2995 | { | |
| 97aff369 | 2996 | dVAR; dSP; dTARGET; |
| 65202027 | 2997 | NV value; |
| 79072805 LW |
2998 | if (MAXARG < 1) |
| 2999 | value = 1.0; | |
| 3000 | else | |
| 3001 | value = POPn; | |
| 3002 | if (value == 0.0) | |
| 3003 | value = 1.0; | |
| 80252599 | 3004 | if (!PL_srand_called) { |
| 85ab1d1d | 3005 | (void)seedDrand01((Rand_seed_t)seed()); |
| 80252599 | 3006 | PL_srand_called = TRUE; |
| 93dc8474 | 3007 | } |
| 85ab1d1d | 3008 | value *= Drand01(); |
| 79072805 LW |
3009 | XPUSHn(value); |
| 3010 | RETURN; | |
| 3011 | } | |
| 3012 | ||
| 3013 | PP(pp_srand) | |
| 3014 | { | |
| 83832992 | 3015 | dVAR; dSP; dTARGET; |
| 0bd48802 | 3016 | const UV anum = (MAXARG < 1) ? seed() : POPu; |
| 85ab1d1d | 3017 | (void)seedDrand01((Rand_seed_t)anum); |
| 80252599 | 3018 | PL_srand_called = TRUE; |
| da1010ec NC |
3019 | if (anum) |
| 3020 | XPUSHu(anum); | |
| 3021 | else { | |
| 3022 | /* Historically srand always returned true. We can avoid breaking | |
| 3023 | that like this: */ | |
| 3024 | sv_setpvs(TARG, "0 but true"); | |
| 3025 | XPUSHTARG; | |
| 3026 | } | |
| 83832992 | 3027 | RETURN; |
| 79072805 LW |
3028 | } |
| 3029 | ||
| 79072805 LW |
3030 | PP(pp_int) |
| 3031 | { | |
| 6f1401dc DM |
3032 | dVAR; dSP; dTARGET; |
| 3033 | tryAMAGICun_MG(int_amg, AMGf_numeric); | |
| 774d564b | 3034 | { |
| 6f1401dc DM |
3035 | SV * const sv = TOPs; |
| 3036 | const IV iv = SvIV_nomg(sv); | |
| 28e5dec8 JH |
3037 | /* XXX it's arguable that compiler casting to IV might be subtly |
| 3038 | different from modf (for numbers inside (IV_MIN,UV_MAX)) in which | |
| 3039 | else preferring IV has introduced a subtle behaviour change bug. OTOH | |
| 3040 | relying on floating point to be accurate is a bug. */ | |
| 3041 | ||
| c781a409 | 3042 | if (!SvOK(sv)) { |
| 922c4365 | 3043 | SETu(0); |
| c781a409 RD |
3044 | } |
| 3045 | else if (SvIOK(sv)) { | |
| 3046 | if (SvIsUV(sv)) | |
| 6f1401dc | 3047 | SETu(SvUV_nomg(sv)); |
| c781a409 | 3048 | else |
| 28e5dec8 | 3049 | SETi(iv); |
| c781a409 | 3050 | } |
| c781a409 | 3051 | else { |
| 6f1401dc | 3052 | const NV value = SvNV_nomg(sv); |
| 1048ea30 | 3053 | if (value >= 0.0) { |
| 28e5dec8 JH |
3054 | if (value < (NV)UV_MAX + 0.5) { |
| 3055 | SETu(U_V(value)); | |
| 3056 | } else { | |
| 059a1014 | 3057 | SETn(Perl_floor(value)); |
| 28e5dec8 | 3058 | } |
| 1048ea30 | 3059 | } |
| 28e5dec8 JH |
3060 | else { |
| 3061 | if (value > (NV)IV_MIN - 0.5) { | |
| 3062 | SETi(I_V(value)); | |
| 3063 | } else { | |
| 1bbae031 | 3064 | SETn(Perl_ceil(value)); |
| 28e5dec8 JH |
3065 | } |
| 3066 | } | |
| 774d564b | 3067 | } |
| 79072805 | 3068 | } |
| 79072805 LW |
3069 | RETURN; |
| 3070 | } | |
| 3071 | ||
| 463ee0b2 LW |
3072 | PP(pp_abs) |
| 3073 | { | |
| 6f1401dc DM |
3074 | dVAR; dSP; dTARGET; |
| 3075 | tryAMAGICun_MG(abs_amg, AMGf_numeric); | |
| a0d0e21e | 3076 | { |
| 6f1401dc | 3077 | SV * const sv = TOPs; |
| 28e5dec8 | 3078 | /* This will cache the NV value if string isn't actually integer */ |
| 6f1401dc | 3079 | const IV iv = SvIV_nomg(sv); |
| a227d84d | 3080 | |
| 800401ee | 3081 | if (!SvOK(sv)) { |
| 922c4365 | 3082 | SETu(0); |
| 800401ee JH |
3083 | } |
| 3084 | else if (SvIOK(sv)) { | |
| 28e5dec8 | 3085 | /* IVX is precise */ |
| 800401ee | 3086 | if (SvIsUV(sv)) { |
| 6f1401dc | 3087 | SETu(SvUV_nomg(sv)); /* force it to be numeric only */ |
| 28e5dec8 JH |
3088 | } else { |
| 3089 | if (iv >= 0) { | |
| 3090 | SETi(iv); | |
| 3091 | } else { | |
| 3092 | if (iv != IV_MIN) { | |
| 3093 | SETi(-iv); | |
| 3094 | } else { | |
| 3095 | /* 2s complement assumption. Also, not really needed as | |
| 3096 | IV_MIN and -IV_MIN should both be %100...00 and NV-able */ | |
| 3097 | SETu(IV_MIN); | |
| 3098 | } | |
| a227d84d | 3099 | } |
| 28e5dec8 JH |
3100 | } |
| 3101 | } else{ | |
| 6f1401dc | 3102 | const NV value = SvNV_nomg(sv); |
| 774d564b | 3103 | if (value < 0.0) |
| 1b6737cc | 3104 | SETn(-value); |
| a4474c9e DD |
3105 | else |
| 3106 | SETn(value); | |
| 774d564b | 3107 | } |
| a0d0e21e | 3108 | } |
| 774d564b | 3109 | RETURN; |
| 463ee0b2 LW |
3110 | } |
| 3111 | ||
| 79072805 LW |
3112 | PP(pp_oct) |
| 3113 | { | |
| 97aff369 | 3114 | dVAR; dSP; dTARGET; |
| 5c144d81 | 3115 | const char *tmps; |
| 53305cf1 | 3116 | I32 flags = PERL_SCAN_ALLOW_UNDERSCORES; |
| 6f894ead | 3117 | STRLEN len; |
| 53305cf1 NC |
3118 | NV result_nv; |
| 3119 | UV result_uv; | |
| 1b6737cc | 3120 | SV* const sv = POPs; |
| 79072805 | 3121 | |
| 349d4f2f | 3122 | tmps = (SvPV_const(sv, len)); |
| 2bc69dc4 NIS |
3123 | if (DO_UTF8(sv)) { |
| 3124 | /* If Unicode, try to downgrade | |
| 3125 | * If not possible, croak. */ | |
| 1b6737cc | 3126 | SV* const tsv = sv_2mortal(newSVsv(sv)); |
| 2bc69dc4 NIS |
3127 | |
| 3128 | SvUTF8_on(tsv); | |
| 3129 | sv_utf8_downgrade(tsv, FALSE); | |
| 349d4f2f | 3130 | tmps = SvPV_const(tsv, len); |
| 2bc69dc4 | 3131 | } |
| daa2adfd NC |
3132 | if (PL_op->op_type == OP_HEX) |
| 3133 | goto hex; | |
| 3134 | ||
| 6f894ead | 3135 | while (*tmps && len && isSPACE(*tmps)) |
| 53305cf1 | 3136 | tmps++, len--; |
| 9e24b6e2 | 3137 | if (*tmps == '0') |
| 53305cf1 | 3138 | tmps++, len--; |
| a674e8db | 3139 | if (*tmps == 'x' || *tmps == 'X') { |
| daa2adfd | 3140 | hex: |
| 53305cf1 | 3141 | result_uv = grok_hex (tmps, &len, &flags, &result_nv); |
| daa2adfd | 3142 | } |
| a674e8db | 3143 | else if (*tmps == 'b' || *tmps == 'B') |
| 53305cf1 | 3144 | result_uv = grok_bin (tmps, &len, &flags, &result_nv); |
| 464e2e8a | 3145 | else |
| 53305cf1 NC |
3146 | result_uv = grok_oct (tmps, &len, &flags, &result_nv); |
| 3147 | ||
| 3148 | if (flags & PERL_SCAN_GREATER_THAN_UV_MAX) { | |
| 3149 | XPUSHn(result_nv); | |
| 3150 | } | |
| 3151 | else { | |
| 3152 | XPUSHu(result_uv); | |
| 3153 | } | |
| 79072805 LW |
3154 | RETURN; |
| 3155 | } | |
| 3156 | ||
| 3157 | /* String stuff. */ | |
| 3158 | ||
| 3159 | PP(pp_length) | |
| 3160 | { | |
| 97aff369 | 3161 | dVAR; dSP; dTARGET; |
| 0bd48802 | 3162 | SV * const sv = TOPs; |
| a0ed51b3 | 3163 | |
| 656266fc | 3164 | if (SvGAMAGIC(sv)) { |
| 9f621bb0 NC |
3165 | /* For an overloaded or magic scalar, we can't know in advance if |
| 3166 | it's going to be UTF-8 or not. Also, we can't call sv_len_utf8 as | |
| 3167 | it likes to cache the length. Maybe that should be a documented | |
| 3168 | feature of it. | |
| 92331800 NC |
3169 | */ |
| 3170 | STRLEN len; | |
| 9f621bb0 NC |
3171 | const char *const p |
| 3172 | = sv_2pv_flags(sv, &len, | |
| 3173 | SV_UNDEF_RETURNS_NULL|SV_CONST_RETURN|SV_GMAGIC); | |
| 92331800 | 3174 | |
| d88e091f BM |
3175 | if (!p) { |
| 3176 | sv_setsv(TARG, &PL_sv_undef); | |
| 3177 | SETTARG; | |
| 3178 | } | |
| 9f621bb0 | 3179 | else if (DO_UTF8(sv)) { |
| 899be101 | 3180 | SETi(utf8_length((U8*)p, (U8*)p + len)); |
| 92331800 NC |
3181 | } |
| 3182 | else | |
| 3183 | SETi(len); | |
| 656266fc | 3184 | } else if (SvOK(sv)) { |
| 9f621bb0 NC |
3185 | /* Neither magic nor overloaded. */ |
| 3186 | if (DO_UTF8(sv)) | |
| 3187 | SETi(sv_len_utf8(sv)); | |
| 3188 | else | |
| 3189 | SETi(sv_len(sv)); | |
| 656266fc | 3190 | } else { |
| d88e091f BM |
3191 | sv_setsv_nomg(TARG, &PL_sv_undef); |
| 3192 | SETTARG; | |
| 92331800 | 3193 | } |
| 79072805 LW |
3194 | RETURN; |
| 3195 | } | |
| 3196 | ||
| 3197 | PP(pp_substr) | |
| 3198 | { | |
| 97aff369 | 3199 | dVAR; dSP; dTARGET; |
| 79072805 | 3200 | SV *sv; |
| 463ee0b2 | 3201 | STRLEN curlen; |
| 9402d6ed | 3202 | STRLEN utf8_curlen; |
| 777f7c56 EB |
3203 | SV * pos_sv; |
| 3204 | IV pos1_iv; | |
| 3205 | int pos1_is_uv; | |
| 3206 | IV pos2_iv; | |
| 3207 | int pos2_is_uv; | |
| 3208 | SV * len_sv; | |
| 3209 | IV len_iv = 0; | |
| 3210 | int len_is_uv = 1; | |
| 050e6362 | 3211 | const I32 lvalue = PL_op->op_flags & OPf_MOD || LVRET; |
| e1ec3a88 | 3212 | const char *tmps; |
| 777f7c56 | 3213 | const IV arybase = CopARYBASE_get(PL_curcop); |
| 9402d6ed | 3214 | SV *repl_sv = NULL; |
| cbbf8932 | 3215 | const char *repl = NULL; |
| 7b8d334a | 3216 | STRLEN repl_len; |
| 050e6362 | 3217 | const int num_args = PL_op->op_private & 7; |
| 13e30c65 | 3218 | bool repl_need_utf8_upgrade = FALSE; |
| 9402d6ed | 3219 | bool repl_is_utf8 = FALSE; |
| 79072805 | 3220 | |
| 78f9721b SM |
3221 | if (num_args > 2) { |
| 3222 | if (num_args > 3) { | |
| 9402d6ed | 3223 | repl_sv = POPs; |
| 83003860 | 3224 | repl = SvPV_const(repl_sv, repl_len); |
| 9402d6ed | 3225 | repl_is_utf8 = DO_UTF8(repl_sv) && SvCUR(repl_sv); |
| 7b8d334a | 3226 | } |
| 777f7c56 EB |
3227 | len_sv = POPs; |
| 3228 | len_iv = SvIV(len_sv); | |
| 3229 | len_is_uv = SvIOK_UV(len_sv); | |
| 5d82c453 | 3230 | } |
| 777f7c56 EB |
3231 | pos_sv = POPs; |
| 3232 | pos1_iv = SvIV(pos_sv); | |
| 3233 | pos1_is_uv = SvIOK_UV(pos_sv); | |
| 79072805 | 3234 | sv = POPs; |
| 849ca7ee | 3235 | PUTBACK; |
| 9402d6ed JH |
3236 | if (repl_sv) { |
| 3237 | if (repl_is_utf8) { | |
| 3238 | if (!DO_UTF8(sv)) | |
| 3239 | sv_utf8_upgrade(sv); | |
| 3240 | } | |
| 13e30c65 JH |
3241 | else if (DO_UTF8(sv)) |
| 3242 | repl_need_utf8_upgrade = TRUE; | |
| 9402d6ed | 3243 | } |
| 5c144d81 | 3244 | tmps = SvPV_const(sv, curlen); |
| 7e2040f0 | 3245 | if (DO_UTF8(sv)) { |
| 9402d6ed JH |
3246 | utf8_curlen = sv_len_utf8(sv); |
| 3247 | if (utf8_curlen == curlen) | |
| 3248 | utf8_curlen = 0; | |
| a0ed51b3 | 3249 | else |
| 9402d6ed | 3250 | curlen = utf8_curlen; |
| a0ed51b3 | 3251 | } |
| d1c2b58a | 3252 | else |
| 9402d6ed | 3253 | utf8_curlen = 0; |
| a0ed51b3 | 3254 | |
| 777f7c56 EB |
3255 | if ( (pos1_is_uv && arybase < 0) || (pos1_iv >= arybase) ) { /* pos >= $[ */ |
| 3256 | UV pos1_uv = pos1_iv-arybase; | |
| 3257 | /* Overflow can occur when $[ < 0 */ | |
| 3258 | if (arybase < 0 && pos1_uv < (UV)pos1_iv) | |
| 1c900557 | 3259 | goto bound_fail; |
| 777f7c56 EB |
3260 | pos1_iv = pos1_uv; |
| 3261 | pos1_is_uv = 1; | |
| 3262 | } | |
| 3263 | else if (pos1_is_uv ? (UV)pos1_iv > 0 : pos1_iv > 0) { | |
| 1c900557 | 3264 | goto bound_fail; /* $[=3; substr($_,2,...) */ |
| 777f7c56 EB |
3265 | } |
| 3266 | else { /* pos < $[ */ | |
| 3267 | if (pos1_iv == 0) { /* $[=1; substr($_,0,...) */ | |
| 3268 | pos1_iv = curlen; | |
| 3269 | pos1_is_uv = 1; | |
| 3270 | } else { | |
| 3271 | if (curlen) { | |
| 3272 | pos1_is_uv = curlen-1 > ~(UV)pos1_iv; | |
| 3273 | pos1_iv += curlen; | |
| 3274 | } | |
| 5d82c453 | 3275 | } |
| 68dc0745 | 3276 | } |
| 777f7c56 EB |
3277 | if (pos1_is_uv || pos1_iv > 0) { |
| 3278 | if ((UV)pos1_iv > curlen) | |
| 1c900557 | 3279 | goto bound_fail; |
| 777f7c56 EB |
3280 | } |
| 3281 | ||
| 3282 | if (num_args > 2) { | |
| 3283 | if (!len_is_uv && len_iv < 0) { | |
| 3284 | pos2_iv = curlen + len_iv; | |
| 3285 | if (curlen) | |
| 3286 | pos2_is_uv = curlen-1 > ~(UV)len_iv; | |
| 3287 | else | |
| 3288 | pos2_is_uv = 0; | |
| 3289 | } else { /* len_iv >= 0 */ | |
| 3290 | if (!pos1_is_uv && pos1_iv < 0) { | |
| 3291 | pos2_iv = pos1_iv + len_iv; | |
| 3292 | pos2_is_uv = (UV)len_iv > (UV)IV_MAX; | |
| 3293 | } else { | |
| 3294 | if ((UV)len_iv > curlen-(UV)pos1_iv) | |
| 3295 | pos2_iv = curlen; | |
| 3296 | else | |
| 3297 | pos2_iv = pos1_iv+len_iv; | |
| 3298 | pos2_is_uv = 1; | |
| 3299 | } | |
| 5d82c453 | 3300 | } |
| 2304df62 | 3301 | } |
| 79072805 | 3302 | else { |
| 777f7c56 EB |
3303 | pos2_iv = curlen; |
| 3304 | pos2_is_uv = 1; | |
| 3305 | } | |
| 3306 | ||
| 3307 | if (!pos2_is_uv && pos2_iv < 0) { | |
| 3308 | if (!pos1_is_uv && pos1_iv < 0) | |
| 1c900557 | 3309 | goto bound_fail; |
| 777f7c56 EB |
3310 | pos2_iv = 0; |
| 3311 | } | |
| 3312 | else if (!pos1_is_uv && pos1_iv < 0) | |
| 3313 | pos1_iv = 0; | |
| 3314 | ||
| 3315 | if ((UV)pos2_iv < (UV)pos1_iv) | |
| 3316 | pos2_iv = pos1_iv; | |
| 3317 | if ((UV)pos2_iv > curlen) | |
| 3318 | pos2_iv = curlen; | |
| 3319 | ||
| 3320 | { | |
| 3321 | /* pos1_iv and pos2_iv both in 0..curlen, so the cast is safe */ | |
| 3322 | const STRLEN pos = (STRLEN)( (UV)pos1_iv ); | |
| 3323 | const STRLEN len = (STRLEN)( (UV)pos2_iv - (UV)pos1_iv ); | |
| 777f7c56 | 3324 | STRLEN byte_len = len; |
| d931b1be NC |
3325 | STRLEN byte_pos = utf8_curlen |
| 3326 | ? sv_pos_u2b_flags(sv, pos, &byte_len, SV_CONST_RETURN) : pos; | |
| 3327 | ||
| 2154eca7 EB |
3328 | if (lvalue && !repl) { |
| 3329 | SV * ret; | |
| 3330 | ||
| 3331 | if (!SvGMAGICAL(sv)) { | |
| 3332 | if (SvROK(sv)) { | |
| 3333 | SvPV_force_nolen(sv); | |
| 3334 | Perl_ck_warner(aTHX_ packWARN(WARN_SUBSTR), | |
| 3335 | "Attempt to use reference as lvalue in substr"); | |
| 3336 | } | |
| 3337 | if (isGV_with_GP(sv)) | |
| 3338 | SvPV_force_nolen(sv); | |
| 3339 | else if (SvOK(sv)) /* is it defined ? */ | |
| 3340 | (void)SvPOK_only_UTF8(sv); | |
| 3341 | else | |
| 3342 | sv_setpvs(sv, ""); /* avoid lexical reincarnation */ | |
| 781e7547 | 3343 | } |
| 2154eca7 EB |
3344 | |
| 3345 | ret = sv_2mortal(newSV_type(SVt_PVLV)); /* Not TARG RT#67838 */ | |
| 3346 | sv_magic(ret, NULL, PERL_MAGIC_substr, NULL, 0); | |
| 3347 | LvTYPE(ret) = 'x'; | |
| 3348 | LvTARG(ret) = SvREFCNT_inc_simple(sv); | |
| 3349 | LvTARGOFF(ret) = pos; | |
| 3350 | LvTARGLEN(ret) = len; | |
| 3351 | ||
| 3352 | SPAGAIN; | |
| 3353 | PUSHs(ret); /* avoid SvSETMAGIC here */ | |
| 3354 | RETURN; | |
| 781e7547 DM |
3355 | } |
| 3356 | ||
| 2154eca7 EB |
3357 | SvTAINTED_off(TARG); /* decontaminate */ |
| 3358 | SvUTF8_off(TARG); /* decontaminate */ | |
| 3359 | ||
| 3360 | tmps += byte_pos; | |
| 777f7c56 | 3361 | sv_setpvn(TARG, tmps, byte_len); |
| 12aa1545 | 3362 | #ifdef USE_LOCALE_COLLATE |
| 14befaf4 | 3363 | sv_unmagic(TARG, PERL_MAGIC_collxfrm); |
| 12aa1545 | 3364 | #endif |
| 9402d6ed | 3365 | if (utf8_curlen) |
| 7f66633b | 3366 | SvUTF8_on(TARG); |
| 2154eca7 | 3367 | |
| f7928d6c | 3368 | if (repl) { |
| 13e30c65 JH |
3369 | SV* repl_sv_copy = NULL; |
| 3370 | ||
| 3371 | if (repl_need_utf8_upgrade) { | |
| 3372 | repl_sv_copy = newSVsv(repl_sv); | |
| 3373 | sv_utf8_upgrade(repl_sv_copy); | |
| 349d4f2f | 3374 | repl = SvPV_const(repl_sv_copy, repl_len); |
| 13e30c65 JH |
3375 | repl_is_utf8 = DO_UTF8(repl_sv_copy) && SvCUR(sv); |
| 3376 | } | |
| 502d9230 VP |
3377 | if (!SvOK(sv)) |
| 3378 | sv_setpvs(sv, ""); | |
| 777f7c56 | 3379 | sv_insert_flags(sv, byte_pos, byte_len, repl, repl_len, 0); |
| 9402d6ed | 3380 | if (repl_is_utf8) |
| f7928d6c | 3381 | SvUTF8_on(sv); |
| ef8d46e8 | 3382 | SvREFCNT_dec(repl_sv_copy); |
| f7928d6c | 3383 | } |
| 79072805 | 3384 | } |
| 849ca7ee | 3385 | SPAGAIN; |
| 79072805 LW |
3386 | PUSHs(TARG); /* avoid SvSETMAGIC here */ |
| 3387 | RETURN; | |
| 777f7c56 | 3388 | |
| 1c900557 | 3389 | bound_fail: |
| 777f7c56 EB |
3390 | if (lvalue || repl) |
| 3391 | Perl_croak(aTHX_ "substr outside of string"); | |
| 3392 | Perl_ck_warner(aTHX_ packWARN(WARN_SUBSTR), "substr outside of string"); | |
| 3393 | RETPUSHUNDEF; | |
| 79072805 LW |
3394 | } |
| 3395 | ||
| 3396 | PP(pp_vec) | |
| 3397 | { | |
| 2154eca7 | 3398 | dVAR; dSP; |
| 1b6737cc AL |
3399 | register const IV size = POPi; |
| 3400 | register const IV offset = POPi; | |
| 3401 | register SV * const src = POPs; | |
| 3402 | const I32 lvalue = PL_op->op_flags & OPf_MOD || LVRET; | |
| 2154eca7 | 3403 | SV * ret; |
| a0d0e21e | 3404 | |
| 81e118e0 | 3405 | if (lvalue) { /* it's an lvalue! */ |
| 2154eca7 EB |
3406 | ret = sv_2mortal(newSV_type(SVt_PVLV)); /* Not TARG RT#67838 */ |
| 3407 | sv_magic(ret, NULL, PERL_MAGIC_vec, NULL, 0); | |
| 3408 | LvTYPE(ret) = 'v'; | |
| 3409 | LvTARG(ret) = SvREFCNT_inc_simple(src); | |
| 3410 | LvTARGOFF(ret) = offset; | |
| 3411 | LvTARGLEN(ret) = size; | |
| 3412 | } | |
| 3413 | else { | |
| 3414 | dTARGET; | |
| 3415 | SvTAINTED_off(TARG); /* decontaminate */ | |
| 3416 | ret = TARG; | |
| 79072805 LW |
3417 | } |
| 3418 | ||
| 2154eca7 EB |
3419 | sv_setuv(ret, do_vecget(src, offset, size)); |
| 3420 | PUSHs(ret); | |
| 79072805 LW |
3421 | RETURN; |
| 3422 | } | |
| 3423 | ||
| 3424 | PP(pp_index) | |
| 3425 | { | |
| 97aff369 | 3426 | dVAR; dSP; dTARGET; |
| 79072805 LW |
3427 | SV *big; |
| 3428 | SV *little; | |
| c445ea15 | 3429 | SV *temp = NULL; |
| ad66a58c | 3430 | STRLEN biglen; |
| 2723d216 | 3431 | STRLEN llen = 0; |
| 79072805 LW |
3432 | I32 offset; |
| 3433 | I32 retval; | |
| 73ee8be2 NC |
3434 | const char *big_p; |
| 3435 | const char *little_p; | |
| fc15ae8f | 3436 | const I32 arybase = CopARYBASE_get(PL_curcop); |
| 2f040f7f NC |
3437 | bool big_utf8; |
| 3438 | bool little_utf8; | |
| 2723d216 | 3439 | const bool is_index = PL_op->op_type == OP_INDEX; |
| 79072805 | 3440 | |
| 2723d216 NC |
3441 | if (MAXARG >= 3) { |
| 3442 | /* arybase is in characters, like offset, so combine prior to the | |
| 3443 | UTF-8 to bytes calculation. */ | |
| 79072805 | 3444 | offset = POPi - arybase; |
| 2723d216 | 3445 | } |
| 79072805 LW |
3446 | little = POPs; |
| 3447 | big = POPs; | |
| 73ee8be2 NC |
3448 | big_p = SvPV_const(big, biglen); |
| 3449 | little_p = SvPV_const(little, llen); | |
| 3450 | ||
| e609e586 NC |
3451 | big_utf8 = DO_UTF8(big); |
| 3452 | little_utf8 = DO_UTF8(little); | |
| 3453 | if (big_utf8 ^ little_utf8) { | |
| 3454 | /* One needs to be upgraded. */ | |
| 2f040f7f NC |
3455 | if (little_utf8 && !PL_encoding) { |
| 3456 | /* Well, maybe instead we might be able to downgrade the small | |
| 3457 | string? */ | |
| 1eced8f8 | 3458 | char * const pv = (char*)bytes_from_utf8((U8 *)little_p, &llen, |
| 2f040f7f NC |
3459 | &little_utf8); |
| 3460 | if (little_utf8) { | |
| 3461 | /* If the large string is ISO-8859-1, and it's not possible to | |
| 3462 | convert the small string to ISO-8859-1, then there is no | |
| 3463 | way that it could be found anywhere by index. */ | |
| 3464 | retval = -1; | |
| 3465 | goto fail; | |
| 3466 | } | |
| e609e586 | 3467 | |
| 2f040f7f NC |
3468 | /* At this point, pv is a malloc()ed string. So donate it to temp |
| 3469 | to ensure it will get free()d */ | |
| 3470 | little = temp = newSV(0); | |
| 73ee8be2 NC |
3471 | sv_usepvn(temp, pv, llen); |
| 3472 | little_p = SvPVX(little); | |
| e609e586 | 3473 | } else { |
| 73ee8be2 NC |
3474 | temp = little_utf8 |
| 3475 | ? newSVpvn(big_p, biglen) : newSVpvn(little_p, llen); | |
| 2f040f7f NC |
3476 | |
| 3477 | if (PL_encoding) { | |
| 3478 | sv_recode_to_utf8(temp, PL_encoding); | |
| 3479 | } else { | |
| 3480 | sv_utf8_upgrade(temp); | |
| 3481 | } | |
| 3482 | if (little_utf8) { | |
| 3483 | big = temp; | |
| 3484 | big_utf8 = TRUE; | |
| 73ee8be2 | 3485 | big_p = SvPV_const(big, biglen); |
| 2f040f7f NC |
3486 | } else { |
| 3487 | little = temp; | |
| 73ee8be2 | 3488 | little_p = SvPV_const(little, llen); |
| 2f040f7f | 3489 | } |
| e609e586 NC |
3490 | } |
| 3491 | } | |
| 73ee8be2 NC |
3492 | if (SvGAMAGIC(big)) { |
| 3493 | /* Life just becomes a lot easier if I use a temporary here. | |
| 3494 | Otherwise I need to avoid calls to sv_pos_u2b(), which (dangerously) | |
| 3495 | will trigger magic and overloading again, as will fbm_instr() | |
| 3496 | */ | |
| 59cd0e26 NC |
3497 | big = newSVpvn_flags(big_p, biglen, |
| 3498 | SVs_TEMP | (big_utf8 ? SVf_UTF8 : 0)); | |
| 73ee8be2 NC |
3499 | big_p = SvPVX(big); |
| 3500 | } | |
| e4e44778 | 3501 | if (SvGAMAGIC(little) || (is_index && !SvOK(little))) { |
| 73ee8be2 NC |
3502 | /* index && SvOK() is a hack. fbm_instr() calls SvPV_const, which will |
| 3503 | warn on undef, and we've already triggered a warning with the | |
| 3504 | SvPV_const some lines above. We can't remove that, as we need to | |
| 3505 | call some SvPV to trigger overloading early and find out if the | |
| 3506 | string is UTF-8. | |
| 3507 | This is all getting to messy. The API isn't quite clean enough, | |
| 3508 | because data access has side effects. | |
| 3509 | */ | |
| 59cd0e26 NC |
3510 | little = newSVpvn_flags(little_p, llen, |
| 3511 | SVs_TEMP | (little_utf8 ? SVf_UTF8 : 0)); | |
| 73ee8be2 NC |
3512 | little_p = SvPVX(little); |
| 3513 | } | |
| e609e586 | 3514 | |
| 79072805 | 3515 | if (MAXARG < 3) |
| 2723d216 | 3516 | offset = is_index ? 0 : biglen; |
| a0ed51b3 | 3517 | else { |
| ad66a58c | 3518 | if (big_utf8 && offset > 0) |
| a0ed51b3 | 3519 | sv_pos_u2b(big, &offset, 0); |
| 73ee8be2 NC |
3520 | if (!is_index) |
| 3521 | offset += llen; | |
| a0ed51b3 | 3522 | } |
| 79072805 LW |
3523 | if (offset < 0) |
| 3524 | offset = 0; | |
| ad66a58c NC |
3525 | else if (offset > (I32)biglen) |
| 3526 | offset = biglen; | |
| 73ee8be2 NC |
3527 | if (!(little_p = is_index |
| 3528 | ? fbm_instr((unsigned char*)big_p + offset, | |
| 3529 | (unsigned char*)big_p + biglen, little, 0) | |
| 3530 | : rninstr(big_p, big_p + offset, | |
| 3531 | little_p, little_p + llen))) | |
| a0ed51b3 | 3532 | retval = -1; |
| ad66a58c | 3533 | else { |
| 73ee8be2 | 3534 | retval = little_p - big_p; |
| ad66a58c NC |
3535 | if (retval > 0 && big_utf8) |
| 3536 | sv_pos_b2u(big, &retval); | |
| 3537 | } | |
| ef8d46e8 | 3538 | SvREFCNT_dec(temp); |
| 2723d216 | 3539 | fail: |
| a0ed51b3 | 3540 | PUSHi(retval + arybase); |
| 79072805 LW |
3541 | RETURN; |
| 3542 | } | |
| 3543 | ||
| 3544 | PP(pp_sprintf) | |
| 3545 | { | |
| 97aff369 | 3546 | dVAR; dSP; dMARK; dORIGMARK; dTARGET; |
| 20ee07fb RGS |
3547 | if (SvTAINTED(MARK[1])) |
| 3548 | TAINT_PROPER("sprintf"); | |
| 3e6bd4bf | 3549 | SvTAINTED_off(TARG); |
| 79072805 | 3550 | do_sprintf(TARG, SP-MARK, MARK+1); |
| bbce6d69 | 3551 | TAINT_IF(SvTAINTED(TARG)); |
| 79072805 LW |
3552 | SP = ORIGMARK; |
| 3553 | PUSHTARG; | |
| 3554 | RETURN; | |
| 3555 | } | |
| 3556 | ||
| 79072805 LW |
3557 | PP(pp_ord) |
| 3558 | { | |
| 97aff369 | 3559 | dVAR; dSP; dTARGET; |
| 1eced8f8 | 3560 | |
| 7df053ec | 3561 | SV *argsv = POPs; |
| ba210ebe | 3562 | STRLEN len; |
| 349d4f2f | 3563 | const U8 *s = (U8*)SvPV_const(argsv, len); |
| 121910a4 | 3564 | |
| 799ef3cb | 3565 | if (PL_encoding && SvPOK(argsv) && !DO_UTF8(argsv)) { |
| 1eced8f8 | 3566 | SV * const tmpsv = sv_2mortal(newSVsv(argsv)); |
| 799ef3cb | 3567 | s = (U8*)sv_recode_to_utf8(tmpsv, PL_encoding); |
| 121910a4 JH |
3568 | argsv = tmpsv; |
| 3569 | } | |
| 79072805 | 3570 | |
| 872c91ae | 3571 | XPUSHu(DO_UTF8(argsv) ? |
| 89ebb4a3 | 3572 | utf8n_to_uvchr(s, UTF8_MAXBYTES, 0, UTF8_ALLOW_ANYUV) : |
| 5fc32dea | 3573 | (UV)(*s & 0xff)); |
| 68795e93 | 3574 | |
| 79072805 LW |
3575 | RETURN; |
| 3576 | } | |
| 3577 | ||
| 463ee0b2 LW |
3578 | PP(pp_chr) |
| 3579 | { | |
| 97aff369 | 3580 | dVAR; dSP; dTARGET; |
| 463ee0b2 | 3581 | char *tmps; |
| 8a064bd6 JH |
3582 | UV value; |
| 3583 | ||
| 3584 | if (((SvIOK_notUV(TOPs) && SvIV(TOPs) < 0) | |
| 3585 | || | |
| 3586 | (SvNOK(TOPs) && SvNV(TOPs) < 0.0))) { | |
| 3587 | if (IN_BYTES) { | |
| 3588 | value = POPu; /* chr(-1) eq chr(0xff), etc. */ | |
| 3589 | } else { | |
| 3590 | (void) POPs; /* Ignore the argument value. */ | |
| 3591 | value = UNICODE_REPLACEMENT; | |
| 3592 | } | |
| 3593 | } else { | |
| 3594 | value = POPu; | |
| 3595 | } | |
| 463ee0b2 | 3596 | |
| 862a34c6 | 3597 | SvUPGRADE(TARG,SVt_PV); |
| a0ed51b3 |