https://perl5.git.perl.org / perl5.git / blame
| Commit | Line | Data |
|---|---|---|
| a0d0e21e | 1 | /* pp.c |
| 79072805 | 2 | * |
| 4bb101f2 | 3 | * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
| b94e2f88 | 4 | * 2000, 2001, 2002, 2003, 2004, 2005, 2006, by Larry Wall and others |
| 79072805 | 5 | * |
| a0d0e21e LW |
6 | * You may distribute under the terms of either the GNU General Public |
| 7 | * License or the Artistic License, as specified in the README file. | |
| 79072805 | 8 | * |
| a0d0e21e LW |
9 | */ |
| 10 | ||
| 11 | /* | |
| 12 | * "It's a big house this, and very peculiar. Always a bit more to discover, | |
| 13 | * and no knowing what you'll find around a corner. And Elves, sir!" --Samwise | |
| 14 | */ | |
| 79072805 | 15 | |
| 166f8a29 DM |
16 | /* This file contains general pp ("push/pop") functions that execute the |
| 17 | * opcodes that make up a perl program. A typical pp function expects to | |
| 18 | * find its arguments on the stack, and usually pushes its results onto | |
| 19 | * the stack, hence the 'pp' terminology. Each OP structure contains | |
| 20 | * a pointer to the relevant pp_foo() function. | |
| 21 | */ | |
| 22 | ||
| 79072805 | 23 | #include "EXTERN.h" |
| 864dbfa3 | 24 | #define PERL_IN_PP_C |
| 79072805 | 25 | #include "perl.h" |
| 77bc9082 | 26 | #include "keywords.h" |
| 79072805 | 27 | |
| a4af207c JH |
28 | #include "reentr.h" |
| 29 | ||
| dfe9444c AD |
30 | /* XXX I can't imagine anyone who doesn't have this actually _needs_ |
| 31 | it, since pid_t is an integral type. | |
| 32 | --AD 2/20/1998 | |
| 33 | */ | |
| 34 | #ifdef NEED_GETPID_PROTO | |
| 35 | extern Pid_t getpid (void); | |
| 8ac85365 NIS |
36 | #endif |
| 37 | ||
| 0630166f SP |
38 | /* |
| 39 | * Some BSDs and Cygwin default to POSIX math instead of IEEE. | |
| 40 | * This switches them over to IEEE. | |
| 41 | */ | |
| 42 | #if defined(LIBM_LIB_VERSION) | |
| 43 | _LIB_VERSION_TYPE _LIB_VERSION = _IEEE_; | |
| 44 | #endif | |
| 45 | ||
| 13017935 SM |
46 | /* variations on pp_null */ |
| 47 | ||
| 93a17b20 LW |
48 | PP(pp_stub) |
| 49 | { | |
| 97aff369 | 50 | dVAR; |
| 39644a26 | 51 | dSP; |
| 54310121 | 52 | if (GIMME_V == G_SCALAR) |
| 3280af22 | 53 | XPUSHs(&PL_sv_undef); |
| 93a17b20 LW |
54 | RETURN; |
| 55 | } | |
| 56 | ||
| 79072805 LW |
57 | /* Pushy stuff. */ |
| 58 | ||
| 93a17b20 LW |
59 | PP(pp_padav) |
| 60 | { | |
| 97aff369 | 61 | dVAR; dSP; dTARGET; |
| 13017935 | 62 | I32 gimme; |
| 533c011a | 63 | if (PL_op->op_private & OPpLVAL_INTRO) |
| a5911867 RGS |
64 | if (!(PL_op->op_private & OPpPAD_STATE)) |
| 65 | SAVECLEARSV(PAD_SVl(PL_op->op_targ)); | |
| 85e6fe83 | 66 | EXTEND(SP, 1); |
| 533c011a | 67 | if (PL_op->op_flags & OPf_REF) { |
| 85e6fe83 | 68 | PUSHs(TARG); |
| 93a17b20 | 69 | RETURN; |
| 78f9721b SM |
70 | } else if (LVRET) { |
| 71 | if (GIMME == G_SCALAR) | |
| 72 | Perl_croak(aTHX_ "Can't return array to lvalue scalar context"); | |
| 73 | PUSHs(TARG); | |
| 74 | RETURN; | |
| 85e6fe83 | 75 | } |
| 13017935 SM |
76 | gimme = GIMME_V; |
| 77 | if (gimme == G_ARRAY) { | |
| f54cb97a | 78 | const I32 maxarg = AvFILL((AV*)TARG) + 1; |
| 85e6fe83 | 79 | EXTEND(SP, maxarg); |
| 93965878 NIS |
80 | if (SvMAGICAL(TARG)) { |
| 81 | U32 i; | |
| eb160463 | 82 | for (i=0; i < (U32)maxarg; i++) { |
| 0bd48802 | 83 | SV * const * const svp = av_fetch((AV*)TARG, i, FALSE); |
| 3280af22 | 84 | SP[i+1] = (svp) ? *svp : &PL_sv_undef; |
| 93965878 NIS |
85 | } |
| 86 | } | |
| 87 | else { | |
| 88 | Copy(AvARRAY((AV*)TARG), SP+1, maxarg, SV*); | |
| 89 | } | |
| 85e6fe83 LW |
90 | SP += maxarg; |
| 91 | } | |
| 13017935 | 92 | else if (gimme == G_SCALAR) { |
| 1b6737cc | 93 | SV* const sv = sv_newmortal(); |
| f54cb97a | 94 | const I32 maxarg = AvFILL((AV*)TARG) + 1; |
| 85e6fe83 LW |
95 | sv_setiv(sv, maxarg); |
| 96 | PUSHs(sv); | |
| 97 | } | |
| 98 | RETURN; | |
| 93a17b20 LW |
99 | } |
| 100 | ||
| 101 | PP(pp_padhv) | |
| 102 | { | |
| 97aff369 | 103 | dVAR; dSP; dTARGET; |
| 54310121 | 104 | I32 gimme; |
| 105 | ||
| 93a17b20 | 106 | XPUSHs(TARG); |
| 533c011a | 107 | if (PL_op->op_private & OPpLVAL_INTRO) |
| a5911867 RGS |
108 | if (!(PL_op->op_private & OPpPAD_STATE)) |
| 109 | SAVECLEARSV(PAD_SVl(PL_op->op_targ)); | |
| 533c011a | 110 | if (PL_op->op_flags & OPf_REF) |
| 93a17b20 | 111 | RETURN; |
| 78f9721b SM |
112 | else if (LVRET) { |
| 113 | if (GIMME == G_SCALAR) | |
| 114 | Perl_croak(aTHX_ "Can't return hash to lvalue scalar context"); | |
| 115 | RETURN; | |
| 116 | } | |
| 54310121 | 117 | gimme = GIMME_V; |
| 118 | if (gimme == G_ARRAY) { | |
| cea2e8a9 | 119 | RETURNOP(do_kv()); |
| 85e6fe83 | 120 | } |
| 54310121 | 121 | else if (gimme == G_SCALAR) { |
| 1b6737cc | 122 | SV* const sv = Perl_hv_scalar(aTHX_ (HV*)TARG); |
| 85e6fe83 | 123 | SETs(sv); |
| 85e6fe83 | 124 | } |
| 54310121 | 125 | RETURN; |
| 93a17b20 LW |
126 | } |
| 127 | ||
| 79072805 LW |
128 | /* Translations. */ |
| 129 | ||
| 130 | PP(pp_rv2gv) | |
| 131 | { | |
| 97aff369 | 132 | dVAR; dSP; dTOPss; |
| 8ec5e241 | 133 | |
| ed6116ce | 134 | if (SvROK(sv)) { |
| a0d0e21e | 135 | wasref: |
| f5284f61 IZ |
136 | tryAMAGICunDEREF(to_gv); |
| 137 | ||
| ed6116ce | 138 | sv = SvRV(sv); |
| b1dadf13 | 139 | if (SvTYPE(sv) == SVt_PVIO) { |
| 1b6737cc | 140 | GV * const gv = (GV*) sv_newmortal(); |
| b1dadf13 | 141 | gv_init(gv, 0, "", 0, 0); |
| 142 | GvIOp(gv) = (IO *)sv; | |
| b37c2d43 | 143 | SvREFCNT_inc_void_NN(sv); |
| b1dadf13 | 144 | sv = (SV*) gv; |
| ef54e1a4 JH |
145 | } |
| 146 | else if (SvTYPE(sv) != SVt_PVGV) | |
| cea2e8a9 | 147 | DIE(aTHX_ "Not a GLOB reference"); |
| 79072805 LW |
148 | } |
| 149 | else { | |
| 93a17b20 | 150 | if (SvTYPE(sv) != SVt_PVGV) { |
| a0d0e21e LW |
151 | if (SvGMAGICAL(sv)) { |
| 152 | mg_get(sv); | |
| 153 | if (SvROK(sv)) | |
| 154 | goto wasref; | |
| 155 | } | |
| afd1915d | 156 | if (!SvOK(sv) && sv != &PL_sv_undef) { |
| b13b2135 | 157 | /* If this is a 'my' scalar and flag is set then vivify |
| 853846ea | 158 | * NI-S 1999/05/07 |
| b13b2135 | 159 | */ |
| ac53db4c DM |
160 | if (SvREADONLY(sv)) |
| 161 | Perl_croak(aTHX_ PL_no_modify); | |
| 1d8d4d2a | 162 | if (PL_op->op_private & OPpDEREF) { |
| 2c8ac474 GS |
163 | GV *gv; |
| 164 | if (cUNOP->op_targ) { | |
| 165 | STRLEN len; | |
| 0bd48802 AL |
166 | SV * const namesv = PAD_SV(cUNOP->op_targ); |
| 167 | const char * const name = SvPV(namesv, len); | |
| 561b68a9 | 168 | gv = (GV*)newSV(0); |
| 2c8ac474 GS |
169 | gv_init(gv, CopSTASH(PL_curcop), name, len, 0); |
| 170 | } | |
| 171 | else { | |
| 0bd48802 | 172 | const char * const name = CopSTASHPV(PL_curcop); |
| 2c8ac474 | 173 | gv = newGVgen(name); |
| 1d8d4d2a | 174 | } |
| b13b2135 NIS |
175 | if (SvTYPE(sv) < SVt_RV) |
| 176 | sv_upgrade(sv, SVt_RV); | |
| bc6af7f8 | 177 | else if (SvPVX_const(sv)) { |
| 8bd4d4c5 | 178 | SvPV_free(sv); |
| b162af07 SP |
179 | SvLEN_set(sv, 0); |
| 180 | SvCUR_set(sv, 0); | |
| 8f3c2c0c | 181 | } |
| b162af07 | 182 | SvRV_set(sv, (SV*)gv); |
| 853846ea | 183 | SvROK_on(sv); |
| 1d8d4d2a | 184 | SvSETMAGIC(sv); |
| 853846ea | 185 | goto wasref; |
| 2c8ac474 | 186 | } |
| 533c011a NIS |
187 | if (PL_op->op_flags & OPf_REF || |
| 188 | PL_op->op_private & HINT_STRICT_REFS) | |
| cea2e8a9 | 189 | DIE(aTHX_ PL_no_usym, "a symbol"); |
| 599cee73 | 190 | if (ckWARN(WARN_UNINITIALIZED)) |
| 29489e7c | 191 | report_uninit(sv); |
| a0d0e21e LW |
192 | RETSETUNDEF; |
| 193 | } | |
| 35cd451c GS |
194 | if ((PL_op->op_flags & OPf_SPECIAL) && |
| 195 | !(PL_op->op_flags & OPf_MOD)) | |
| 196 | { | |
| f776e3cd | 197 | SV * const temp = (SV*)gv_fetchsv(sv, 0, SVt_PVGV); |
| 7a5fd60d NC |
198 | if (!temp |
| 199 | && (!is_gv_magical_sv(sv,0) | |
| f776e3cd | 200 | || !(sv = (SV*)gv_fetchsv(sv, GV_ADD, SVt_PVGV)))) { |
| 35cd451c | 201 | RETSETUNDEF; |
| c9d5ac95 | 202 | } |
| 7a5fd60d | 203 | sv = temp; |
| 35cd451c GS |
204 | } |
| 205 | else { | |
| 206 | if (PL_op->op_private & HINT_STRICT_REFS) | |
| 7a5fd60d | 207 | DIE(aTHX_ PL_no_symref_sv, sv, "a symbol"); |
| e26df76a NC |
208 | if ((PL_op->op_private & (OPpLVAL_INTRO|OPpDONT_INIT_GV)) |
| 209 | == OPpDONT_INIT_GV) { | |
| 210 | /* We are the target of a coderef assignment. Return | |
| 211 | the scalar unchanged, and let pp_sasssign deal with | |
| 212 | things. */ | |
| 213 | RETURN; | |
| 214 | } | |
| f776e3cd | 215 | sv = (SV*)gv_fetchsv(sv, GV_ADD, SVt_PVGV); |
| 35cd451c | 216 | } |
| 93a17b20 | 217 | } |
| 79072805 | 218 | } |
| 533c011a NIS |
219 | if (PL_op->op_private & OPpLVAL_INTRO) |
| 220 | save_gp((GV*)sv, !(PL_op->op_flags & OPf_SPECIAL)); | |
| 79072805 LW |
221 | SETs(sv); |
| 222 | RETURN; | |
| 223 | } | |
| 224 | ||
| 79072805 LW |
225 | PP(pp_rv2sv) |
| 226 | { | |
| 97aff369 | 227 | dVAR; dSP; dTOPss; |
| c445ea15 | 228 | GV *gv = NULL; |
| 79072805 | 229 | |
| ed6116ce | 230 | if (SvROK(sv)) { |
| a0d0e21e | 231 | wasref: |
| f5284f61 IZ |
232 | tryAMAGICunDEREF(to_sv); |
| 233 | ||
| ed6116ce | 234 | sv = SvRV(sv); |
| 79072805 LW |
235 | switch (SvTYPE(sv)) { |
| 236 | case SVt_PVAV: | |
| 237 | case SVt_PVHV: | |
| 238 | case SVt_PVCV: | |
| cbae9b9f YST |
239 | case SVt_PVFM: |
| 240 | case SVt_PVIO: | |
| cea2e8a9 | 241 | DIE(aTHX_ "Not a SCALAR reference"); |
| 79072805 LW |
242 | } |
| 243 | } | |
| 244 | else { | |
| 82d03984 | 245 | gv = (GV*)sv; |
| 748a9306 | 246 | |
| 463ee0b2 | 247 | if (SvTYPE(gv) != SVt_PVGV) { |
| a0d0e21e LW |
248 | if (SvGMAGICAL(sv)) { |
| 249 | mg_get(sv); | |
| 250 | if (SvROK(sv)) | |
| 251 | goto wasref; | |
| 252 | } | |
| 2e6a7e23 RGS |
253 | if (PL_op->op_private & HINT_STRICT_REFS) { |
| 254 | if (SvOK(sv)) | |
| 255 | DIE(aTHX_ PL_no_symref_sv, sv, "a SCALAR"); | |
| 256 | else | |
| 257 | DIE(aTHX_ PL_no_usym, "a SCALAR"); | |
| 258 | } | |
| a0d0e21e | 259 | if (!SvOK(sv)) { |
| 2e6a7e23 | 260 | if (PL_op->op_flags & OPf_REF) |
| cea2e8a9 | 261 | DIE(aTHX_ PL_no_usym, "a SCALAR"); |
| 599cee73 | 262 | if (ckWARN(WARN_UNINITIALIZED)) |
| 29489e7c | 263 | report_uninit(sv); |
| a0d0e21e LW |
264 | RETSETUNDEF; |
| 265 | } | |
| 35cd451c GS |
266 | if ((PL_op->op_flags & OPf_SPECIAL) && |
| 267 | !(PL_op->op_flags & OPf_MOD)) | |
| 268 | { | |
| f776e3cd | 269 | gv = (GV*)gv_fetchsv(sv, 0, SVt_PV); |
| c9d5ac95 | 270 | if (!gv |
| 7a5fd60d | 271 | && (!is_gv_magical_sv(sv, 0) |
| f776e3cd | 272 | || !(gv = (GV*)gv_fetchsv(sv, GV_ADD, SVt_PV)))) |
| c9d5ac95 | 273 | { |
| 35cd451c | 274 | RETSETUNDEF; |
| c9d5ac95 | 275 | } |
| 35cd451c GS |
276 | } |
| 277 | else { | |
| f776e3cd | 278 | gv = (GV*)gv_fetchsv(sv, GV_ADD, SVt_PV); |
| 35cd451c | 279 | } |
| 463ee0b2 | 280 | } |
| 29c711a3 | 281 | sv = GvSVn(gv); |
| a0d0e21e | 282 | } |
| 533c011a | 283 | if (PL_op->op_flags & OPf_MOD) { |
| 82d03984 RGS |
284 | if (PL_op->op_private & OPpLVAL_INTRO) { |
| 285 | if (cUNOP->op_first->op_type == OP_NULL) | |
| 286 | sv = save_scalar((GV*)TOPs); | |
| 287 | else if (gv) | |
| 288 | sv = save_scalar(gv); | |
| 289 | else | |
| 290 | Perl_croak(aTHX_ PL_no_localize_ref); | |
| 291 | } | |
| 533c011a NIS |
292 | else if (PL_op->op_private & OPpDEREF) |
| 293 | vivify_ref(sv, PL_op->op_private & OPpDEREF); | |
| 79072805 | 294 | } |
| a0d0e21e | 295 | SETs(sv); |
| 79072805 LW |
296 | RETURN; |
| 297 | } | |
| 298 | ||
| 299 | PP(pp_av2arylen) | |
| 300 | { | |
| 97aff369 | 301 | dVAR; dSP; |
| 1b6737cc AL |
302 | AV * const av = (AV*)TOPs; |
| 303 | SV ** const sv = Perl_av_arylen_p(aTHX_ (AV*)av); | |
| a3874608 | 304 | if (!*sv) { |
| 561b68a9 | 305 | *sv = newSV(0); |
| a3874608 | 306 | sv_upgrade(*sv, SVt_PVMG); |
| c445ea15 | 307 | sv_magic(*sv, (SV*)av, PERL_MAGIC_arylen, NULL, 0); |
| 79072805 | 308 | } |
| a3874608 | 309 | SETs(*sv); |
| 79072805 LW |
310 | RETURN; |
| 311 | } | |
| 312 | ||
| a0d0e21e LW |
313 | PP(pp_pos) |
| 314 | { | |
| 97aff369 | 315 | dVAR; dSP; dTARGET; dPOPss; |
| 8ec5e241 | 316 | |
| 78f9721b | 317 | if (PL_op->op_flags & OPf_MOD || LVRET) { |
| 5f05dabc | 318 | if (SvTYPE(TARG) < SVt_PVLV) { |
| 319 | sv_upgrade(TARG, SVt_PVLV); | |
| c445ea15 | 320 | sv_magic(TARG, NULL, PERL_MAGIC_pos, NULL, 0); |
| 5f05dabc | 321 | } |
| 322 | ||
| 323 | LvTYPE(TARG) = '.'; | |
| 6ff81951 GS |
324 | if (LvTARG(TARG) != sv) { |
| 325 | if (LvTARG(TARG)) | |
| 326 | SvREFCNT_dec(LvTARG(TARG)); | |
| b37c2d43 | 327 | LvTARG(TARG) = SvREFCNT_inc_simple(sv); |
| 6ff81951 | 328 | } |
| a0d0e21e LW |
329 | PUSHs(TARG); /* no SvSETMAGIC */ |
| 330 | RETURN; | |
| 331 | } | |
| 332 | else { | |
| a0d0e21e | 333 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) { |
| 1b6737cc | 334 | const MAGIC * const mg = mg_find(sv, PERL_MAGIC_regex_global); |
| 565764a8 | 335 | if (mg && mg->mg_len >= 0) { |
| a0ed51b3 | 336 | I32 i = mg->mg_len; |
| 7e2040f0 | 337 | if (DO_UTF8(sv)) |
| a0ed51b3 | 338 | sv_pos_b2u(sv, &i); |
| fc15ae8f | 339 | PUSHi(i + CopARYBASE_get(PL_curcop)); |
| a0d0e21e LW |
340 | RETURN; |
| 341 | } | |
| 342 | } | |
| 343 | RETPUSHUNDEF; | |
| 344 | } | |
| 345 | } | |
| 346 | ||
| 79072805 LW |
347 | PP(pp_rv2cv) |
| 348 | { | |
| 97aff369 | 349 | dVAR; dSP; |
| 79072805 | 350 | GV *gv; |
| 1eced8f8 | 351 | HV *stash_unused; |
| c445ea15 AL |
352 | const I32 flags = (PL_op->op_flags & OPf_SPECIAL) |
| 353 | ? 0 | |
| 354 | : ((PL_op->op_private & (OPpLVAL_INTRO|OPpMAY_RETURN_CONSTANT)) == OPpMAY_RETURN_CONSTANT) | |
| 355 | ? GV_ADD|GV_NOEXPAND | |
| 356 | : GV_ADD; | |
| 4633a7c4 LW |
357 | /* We usually try to add a non-existent subroutine in case of AUTOLOAD. */ |
| 358 | /* (But not in defined().) */ | |
| e26df76a | 359 | |
| 1eced8f8 | 360 | CV *cv = sv_2cv(TOPs, &stash_unused, &gv, flags); |
| 07055b4c CS |
361 | if (cv) { |
| 362 | if (CvCLONE(cv)) | |
| 363 | cv = (CV*)sv_2mortal((SV*)cv_clone(cv)); | |
| d32f2495 SC |
364 | if ((PL_op->op_private & OPpLVAL_INTRO)) { |
| 365 | if (gv && GvCV(gv) == cv && (gv = gv_autoload4(GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv), FALSE))) | |
| 366 | cv = GvCV(gv); | |
| 367 | if (!CvLVALUE(cv)) | |
| 368 | DIE(aTHX_ "Can't modify non-lvalue subroutine call"); | |
| 369 | } | |
| 07055b4c | 370 | } |
| e26df76a NC |
371 | else if ((flags == (GV_ADD|GV_NOEXPAND)) && gv && SvROK(gv)) { |
| 372 | cv = (CV*)gv; | |
| 373 | } | |
| 07055b4c | 374 | else |
| 3280af22 | 375 | cv = (CV*)&PL_sv_undef; |
| 79072805 LW |
376 | SETs((SV*)cv); |
| 377 | RETURN; | |
| 378 | } | |
| 379 | ||
| c07a80fd | 380 | PP(pp_prototype) |
| 381 | { | |
| 97aff369 | 382 | dVAR; dSP; |
| c07a80fd | 383 | CV *cv; |
| 384 | HV *stash; | |
| 385 | GV *gv; | |
| fabdb6c0 | 386 | SV *ret = &PL_sv_undef; |
| c07a80fd | 387 | |
| b6c543e3 | 388 | if (SvPOK(TOPs) && SvCUR(TOPs) >= 7) { |
| 0bd48802 | 389 | const char * const s = SvPVX_const(TOPs); |
| b6c543e3 | 390 | if (strnEQ(s, "CORE::", 6)) { |
| f54cb97a | 391 | const int code = keyword(s + 6, SvCUR(TOPs) - 6); |
| b6c543e3 IZ |
392 | if (code < 0) { /* Overridable. */ |
| 393 | #define MAX_ARGS_OP ((sizeof(I32) - 1) * 2) | |
| 394 | int i = 0, n = 0, seen_question = 0; | |
| 395 | I32 oa; | |
| 396 | char str[ MAX_ARGS_OP * 2 + 2 ]; /* One ';', one '\0' */ | |
| 397 | ||
| bdf1bb36 RGS |
398 | if (code == -KEY_chop || code == -KEY_chomp |
| 399 | || code == -KEY_exec || code == -KEY_system) | |
| 77bc9082 | 400 | goto set; |
| b6c543e3 | 401 | while (i < MAXO) { /* The slow way. */ |
| 22c35a8c GS |
402 | if (strEQ(s + 6, PL_op_name[i]) |
| 403 | || strEQ(s + 6, PL_op_desc[i])) | |
| 404 | { | |
| b6c543e3 | 405 | goto found; |
| 22c35a8c | 406 | } |
| b6c543e3 IZ |
407 | i++; |
| 408 | } | |
| 409 | goto nonesuch; /* Should not happen... */ | |
| 410 | found: | |
| 22c35a8c | 411 | oa = PL_opargs[i] >> OASHIFT; |
| b6c543e3 | 412 | while (oa) { |
| 3012a639 | 413 | if (oa & OA_OPTIONAL && !seen_question) { |
| b6c543e3 IZ |
414 | seen_question = 1; |
| 415 | str[n++] = ';'; | |
| ef54e1a4 | 416 | } |
| b13b2135 | 417 | if ((oa & (OA_OPTIONAL - 1)) >= OA_AVREF |
| 6e97e420 SC |
418 | && (oa & (OA_OPTIONAL - 1)) <= OA_SCALARREF |
| 419 | /* But globs are already references (kinda) */ | |
| 420 | && (oa & (OA_OPTIONAL - 1)) != OA_FILEREF | |
| 421 | ) { | |
| b6c543e3 IZ |
422 | str[n++] = '\\'; |
| 423 | } | |
| b6c543e3 IZ |
424 | str[n++] = ("?$@@%&*$")[oa & (OA_OPTIONAL - 1)]; |
| 425 | oa = oa >> 4; | |
| 426 | } | |
| 427 | str[n++] = '\0'; | |
| 79cb57f6 | 428 | ret = sv_2mortal(newSVpvn(str, n - 1)); |
| ef54e1a4 JH |
429 | } |
| 430 | else if (code) /* Non-Overridable */ | |
| b6c543e3 IZ |
431 | goto set; |
| 432 | else { /* None such */ | |
| 433 | nonesuch: | |
| d470f89e | 434 | DIE(aTHX_ "Can't find an opnumber for \"%s\"", s+6); |
| b6c543e3 IZ |
435 | } |
| 436 | } | |
| 437 | } | |
| f2c0649b | 438 | cv = sv_2cv(TOPs, &stash, &gv, 0); |
| 5f05dabc | 439 | if (cv && SvPOK(cv)) |
| b15aece3 | 440 | ret = sv_2mortal(newSVpvn(SvPVX_const(cv), SvCUR(cv))); |
| b6c543e3 | 441 | set: |
| c07a80fd | 442 | SETs(ret); |
| 443 | RETURN; | |
| 444 | } | |
| 445 | ||
| a0d0e21e LW |
446 | PP(pp_anoncode) |
| 447 | { | |
| 97aff369 | 448 | dVAR; dSP; |
| dd2155a4 | 449 | CV* cv = (CV*)PAD_SV(PL_op->op_targ); |
| a5f75d66 | 450 | if (CvCLONE(cv)) |
| b355b4e0 | 451 | cv = (CV*)sv_2mortal((SV*)cv_clone(cv)); |
| 5f05dabc | 452 | EXTEND(SP,1); |
| 748a9306 | 453 | PUSHs((SV*)cv); |
| a0d0e21e LW |
454 | RETURN; |
| 455 | } | |
| 456 | ||
| 457 | PP(pp_srefgen) | |
| 79072805 | 458 | { |
| 97aff369 | 459 | dVAR; dSP; |
| 71be2cbc | 460 | *SP = refto(*SP); |
| 79072805 | 461 | RETURN; |
| 8ec5e241 | 462 | } |
| a0d0e21e LW |
463 | |
| 464 | PP(pp_refgen) | |
| 465 | { | |
| 97aff369 | 466 | dVAR; dSP; dMARK; |
| a0d0e21e | 467 | if (GIMME != G_ARRAY) { |
| 5f0b1d4e GS |
468 | if (++MARK <= SP) |
| 469 | *MARK = *SP; | |
| 470 | else | |
| 3280af22 | 471 | *MARK = &PL_sv_undef; |
| 5f0b1d4e GS |
472 | *MARK = refto(*MARK); |
| 473 | SP = MARK; | |
| 474 | RETURN; | |
| a0d0e21e | 475 | } |
| bbce6d69 | 476 | EXTEND_MORTAL(SP - MARK); |
| 71be2cbc | 477 | while (++MARK <= SP) |
| 478 | *MARK = refto(*MARK); | |
| a0d0e21e | 479 | RETURN; |
| 79072805 LW |
480 | } |
| 481 | ||
| 76e3520e | 482 | STATIC SV* |
| cea2e8a9 | 483 | S_refto(pTHX_ SV *sv) |
| 71be2cbc | 484 | { |
| 97aff369 | 485 | dVAR; |
| 71be2cbc | 486 | SV* rv; |
| 487 | ||
| 488 | if (SvTYPE(sv) == SVt_PVLV && LvTYPE(sv) == 'y') { | |
| 489 | if (LvTARGLEN(sv)) | |
| 68dc0745 | 490 | vivify_defelem(sv); |
| 491 | if (!(sv = LvTARG(sv))) | |
| 3280af22 | 492 | sv = &PL_sv_undef; |
| 0dd88869 | 493 | else |
| b37c2d43 | 494 | SvREFCNT_inc_void_NN(sv); |
| 71be2cbc | 495 | } |
| d8b46c1b GS |
496 | else if (SvTYPE(sv) == SVt_PVAV) { |
| 497 | if (!AvREAL((AV*)sv) && AvREIFY((AV*)sv)) | |
| 498 | av_reify((AV*)sv); | |
| 499 | SvTEMP_off(sv); | |
| b37c2d43 | 500 | SvREFCNT_inc_void_NN(sv); |
| d8b46c1b | 501 | } |
| f2933f5f DM |
502 | else if (SvPADTMP(sv) && !IS_PADGV(sv)) |
| 503 | sv = newSVsv(sv); | |
| 71be2cbc | 504 | else { |
| 505 | SvTEMP_off(sv); | |
| b37c2d43 | 506 | SvREFCNT_inc_void_NN(sv); |
| 71be2cbc | 507 | } |
| 508 | rv = sv_newmortal(); | |
| 509 | sv_upgrade(rv, SVt_RV); | |
| b162af07 | 510 | SvRV_set(rv, sv); |
| 71be2cbc | 511 | SvROK_on(rv); |
| 512 | return rv; | |
| 513 | } | |
| 514 | ||
| 79072805 LW |
515 | PP(pp_ref) |
| 516 | { | |
| 97aff369 | 517 | dVAR; dSP; dTARGET; |
| e1ec3a88 | 518 | const char *pv; |
| 1b6737cc | 519 | SV * const sv = POPs; |
| f12c7020 | 520 | |
| 5b295bef RD |
521 | if (sv) |
| 522 | SvGETMAGIC(sv); | |
| f12c7020 | 523 | |
| a0d0e21e | 524 | if (!sv || !SvROK(sv)) |
| 4633a7c4 | 525 | RETPUSHNO; |
| 79072805 | 526 | |
| 1b6737cc | 527 | pv = sv_reftype(SvRV(sv),TRUE); |
| 463ee0b2 | 528 | PUSHp(pv, strlen(pv)); |
| 79072805 LW |
529 | RETURN; |
| 530 | } | |
| 531 | ||
| 532 | PP(pp_bless) | |
| 533 | { | |
| 97aff369 | 534 | dVAR; dSP; |
| 463ee0b2 | 535 | HV *stash; |
| 79072805 | 536 | |
| 463ee0b2 | 537 | if (MAXARG == 1) |
| 11faa288 | 538 | stash = CopSTASH(PL_curcop); |
| 7b8d334a | 539 | else { |
| 1b6737cc | 540 | SV * const ssv = POPs; |
| 7b8d334a | 541 | STRLEN len; |
| e1ec3a88 | 542 | const char *ptr; |
| 81689caa | 543 | |
| 016a42f3 | 544 | if (ssv && !SvGMAGICAL(ssv) && !SvAMAGIC(ssv) && SvROK(ssv)) |
| 81689caa | 545 | Perl_croak(aTHX_ "Attempt to bless into a reference"); |
| 5c144d81 | 546 | ptr = SvPV_const(ssv,len); |
| 041457d9 | 547 | if (len == 0 && ckWARN(WARN_MISC)) |
| 9014280d | 548 | Perl_warner(aTHX_ packWARN(WARN_MISC), |
| 599cee73 | 549 | "Explicit blessing to '' (assuming package main)"); |
| 7b8d334a GS |
550 | stash = gv_stashpvn(ptr, len, TRUE); |
| 551 | } | |
| a0d0e21e | 552 | |
| 5d3fdfeb | 553 | (void)sv_bless(TOPs, stash); |
| 79072805 LW |
554 | RETURN; |
| 555 | } | |
| 556 | ||
| fb73857a | 557 | PP(pp_gelem) |
| 558 | { | |
| 97aff369 | 559 | dVAR; dSP; |
| b13b2135 | 560 | |
| 1b6737cc AL |
561 | SV *sv = POPs; |
| 562 | const char * const elem = SvPV_nolen_const(sv); | |
| 563 | GV * const gv = (GV*)POPs; | |
| c445ea15 | 564 | SV * tmpRef = NULL; |
| 1b6737cc | 565 | |
| c445ea15 | 566 | sv = NULL; |
| c4ba80c3 NC |
567 | if (elem) { |
| 568 | /* elem will always be NUL terminated. */ | |
| 1b6737cc | 569 | const char * const second_letter = elem + 1; |
| c4ba80c3 NC |
570 | switch (*elem) { |
| 571 | case 'A': | |
| 1b6737cc | 572 | if (strEQ(second_letter, "RRAY")) |
| c4ba80c3 NC |
573 | tmpRef = (SV*)GvAV(gv); |
| 574 | break; | |
| 575 | case 'C': | |
| 1b6737cc | 576 | if (strEQ(second_letter, "ODE")) |
| c4ba80c3 NC |
577 | tmpRef = (SV*)GvCVu(gv); |
| 578 | break; | |
| 579 | case 'F': | |
| 1b6737cc | 580 | if (strEQ(second_letter, "ILEHANDLE")) { |
| c4ba80c3 NC |
581 | /* finally deprecated in 5.8.0 */ |
| 582 | deprecate("*glob{FILEHANDLE}"); | |
| 583 | tmpRef = (SV*)GvIOp(gv); | |
| 584 | } | |
| 585 | else | |
| 1b6737cc | 586 | if (strEQ(second_letter, "ORMAT")) |
| c4ba80c3 NC |
587 | tmpRef = (SV*)GvFORM(gv); |
| 588 | break; | |
| 589 | case 'G': | |
| 1b6737cc | 590 | if (strEQ(second_letter, "LOB")) |
| c4ba80c3 NC |
591 | tmpRef = (SV*)gv; |
| 592 | break; | |
| 593 | case 'H': | |
| 1b6737cc | 594 | if (strEQ(second_letter, "ASH")) |
| c4ba80c3 NC |
595 | tmpRef = (SV*)GvHV(gv); |
| 596 | break; | |
| 597 | case 'I': | |
| 1b6737cc | 598 | if (*second_letter == 'O' && !elem[2]) |
| c4ba80c3 NC |
599 | tmpRef = (SV*)GvIOp(gv); |
| 600 | break; | |
| 601 | case 'N': | |
| 1b6737cc | 602 | if (strEQ(second_letter, "AME")) |
| c4ba80c3 NC |
603 | sv = newSVpvn(GvNAME(gv), GvNAMELEN(gv)); |
| 604 | break; | |
| 605 | case 'P': | |
| 1b6737cc | 606 | if (strEQ(second_letter, "ACKAGE")) { |
| 7fa3a4ab NC |
607 | const HV * const stash = GvSTASH(gv); |
| 608 | const HEK * const hek = stash ? HvNAME_HEK(stash) : NULL; | |
| 396482e1 | 609 | sv = hek ? newSVhek(hek) : newSVpvs("__ANON__"); |
| c4ba80c3 NC |
610 | } |
| 611 | break; | |
| 612 | case 'S': | |
| 1b6737cc | 613 | if (strEQ(second_letter, "CALAR")) |
| f9d52e31 | 614 | tmpRef = GvSVn(gv); |
| c4ba80c3 | 615 | break; |
| 39b99f21 | 616 | } |
| fb73857a | 617 | } |
| 76e3520e GS |
618 | if (tmpRef) |
| 619 | sv = newRV(tmpRef); | |
| fb73857a | 620 | if (sv) |
| 621 | sv_2mortal(sv); | |
| 622 | else | |
| 3280af22 | 623 | sv = &PL_sv_undef; |
| fb73857a | 624 | XPUSHs(sv); |
| 625 | RETURN; | |
| 626 | } | |
| 627 | ||
| a0d0e21e | 628 | /* Pattern matching */ |
| 79072805 | 629 | |
| a0d0e21e | 630 | PP(pp_study) |
| 79072805 | 631 | { |
| 97aff369 | 632 | dVAR; dSP; dPOPss; |
| a0d0e21e LW |
633 | register unsigned char *s; |
| 634 | register I32 pos; | |
| 635 | register I32 ch; | |
| 636 | register I32 *sfirst; | |
| 637 | register I32 *snext; | |
| a0d0e21e LW |
638 | STRLEN len; |
| 639 | ||
| 3280af22 | 640 | if (sv == PL_lastscream) { |
| 1e422769 | 641 | if (SvSCREAM(sv)) |
| 642 | RETPUSHYES; | |
| 643 | } | |
| a4f4e906 NC |
644 | s = (unsigned char*)(SvPV(sv, len)); |
| 645 | pos = len; | |
| 646 | if (pos <= 0 || !SvPOK(sv)) { | |
| 647 | /* No point in studying a zero length string, and not safe to study | |
| 648 | anything that doesn't appear to be a simple scalar (and hence might | |
| 649 | change between now and when the regexp engine runs without our set | |
| bd473224 | 650 | magic ever running) such as a reference to an object with overloaded |
| a4f4e906 NC |
651 | stringification. */ |
| 652 | RETPUSHNO; | |
| 653 | } | |
| 654 | ||
| 655 | if (PL_lastscream) { | |
| 656 | SvSCREAM_off(PL_lastscream); | |
| 657 | SvREFCNT_dec(PL_lastscream); | |
| c07a80fd | 658 | } |
| b37c2d43 | 659 | PL_lastscream = SvREFCNT_inc_simple(sv); |
| 1e422769 | 660 | |
| 661 | s = (unsigned char*)(SvPV(sv, len)); | |
| 662 | pos = len; | |
| 663 | if (pos <= 0) | |
| 664 | RETPUSHNO; | |
| 3280af22 NIS |
665 | if (pos > PL_maxscream) { |
| 666 | if (PL_maxscream < 0) { | |
| 667 | PL_maxscream = pos + 80; | |
| a02a5408 JC |
668 | Newx(PL_screamfirst, 256, I32); |
| 669 | Newx(PL_screamnext, PL_maxscream, I32); | |
| 79072805 LW |
670 | } |
| 671 | else { | |
| 3280af22 NIS |
672 | PL_maxscream = pos + pos / 4; |
| 673 | Renew(PL_screamnext, PL_maxscream, I32); | |
| 79072805 | 674 | } |
| 79072805 | 675 | } |
| a0d0e21e | 676 | |
| 3280af22 NIS |
677 | sfirst = PL_screamfirst; |
| 678 | snext = PL_screamnext; | |
| a0d0e21e LW |
679 | |
| 680 | if (!sfirst || !snext) | |
| cea2e8a9 | 681 | DIE(aTHX_ "do_study: out of memory"); |
| a0d0e21e LW |
682 | |
| 683 | for (ch = 256; ch; --ch) | |
| 684 | *sfirst++ = -1; | |
| 685 | sfirst -= 256; | |
| 686 | ||
| 687 | while (--pos >= 0) { | |
| 1b6737cc | 688 | register const I32 ch = s[pos]; |
| a0d0e21e LW |
689 | if (sfirst[ch] >= 0) |
| 690 | snext[pos] = sfirst[ch] - pos; | |
| 691 | else | |
| 692 | snext[pos] = -pos; | |
| 693 | sfirst[ch] = pos; | |
| 79072805 LW |
694 | } |
| 695 | ||
| c07a80fd | 696 | SvSCREAM_on(sv); |
| 14befaf4 | 697 | /* piggyback on m//g magic */ |
| c445ea15 | 698 | sv_magic(sv, NULL, PERL_MAGIC_regex_global, NULL, 0); |
| 1e422769 | 699 | RETPUSHYES; |
| 79072805 LW |
700 | } |
| 701 | ||
| a0d0e21e | 702 | PP(pp_trans) |
| 79072805 | 703 | { |
| 97aff369 | 704 | dVAR; dSP; dTARG; |
| a0d0e21e LW |
705 | SV *sv; |
| 706 | ||
| 533c011a | 707 | if (PL_op->op_flags & OPf_STACKED) |
| a0d0e21e | 708 | sv = POPs; |
| 59f00321 RGS |
709 | else if (PL_op->op_private & OPpTARGET_MY) |
| 710 | sv = GETTARGET; | |
| 79072805 | 711 | else { |
| 54b9620d | 712 | sv = DEFSV; |
| a0d0e21e | 713 | EXTEND(SP,1); |
| 79072805 | 714 | } |
| adbc6bb1 | 715 | TARG = sv_newmortal(); |
| 4757a243 | 716 | PUSHi(do_trans(sv)); |
| a0d0e21e | 717 | RETURN; |
| 79072805 LW |
718 | } |
| 719 | ||
| a0d0e21e | 720 | /* Lvalue operators. */ |
| 79072805 | 721 | |
| a0d0e21e LW |
722 | PP(pp_schop) |
| 723 | { | |
| 97aff369 | 724 | dVAR; dSP; dTARGET; |
| a0d0e21e LW |
725 | do_chop(TARG, TOPs); |
| 726 | SETTARG; | |
| 727 | RETURN; | |
| 79072805 LW |
728 | } |
| 729 | ||
| a0d0e21e | 730 | PP(pp_chop) |
| 79072805 | 731 | { |
| 97aff369 | 732 | dVAR; dSP; dMARK; dTARGET; dORIGMARK; |
| 2ec6af5f RG |
733 | while (MARK < SP) |
| 734 | do_chop(TARG, *++MARK); | |
| 735 | SP = ORIGMARK; | |
| b59aed67 | 736 | XPUSHTARG; |
| a0d0e21e | 737 | RETURN; |
| 79072805 LW |
738 | } |
| 739 | ||
| a0d0e21e | 740 | PP(pp_schomp) |
| 79072805 | 741 | { |
| 97aff369 | 742 | dVAR; dSP; dTARGET; |
| a0d0e21e LW |
743 | SETi(do_chomp(TOPs)); |
| 744 | RETURN; | |
| 79072805 LW |
745 | } |
| 746 | ||
| a0d0e21e | 747 | PP(pp_chomp) |
| 79072805 | 748 | { |
| 97aff369 | 749 | dVAR; dSP; dMARK; dTARGET; |
| a0d0e21e | 750 | register I32 count = 0; |
| 8ec5e241 | 751 | |
| a0d0e21e LW |
752 | while (SP > MARK) |
| 753 | count += do_chomp(POPs); | |
| b59aed67 | 754 | XPUSHi(count); |
| a0d0e21e | 755 | RETURN; |
| 79072805 LW |
756 | } |
| 757 | ||
| a0d0e21e LW |
758 | PP(pp_undef) |
| 759 | { | |
| 97aff369 | 760 | dVAR; dSP; |
| a0d0e21e LW |
761 | SV *sv; |
| 762 | ||
| 533c011a | 763 | if (!PL_op->op_private) { |
| 774d564b | 764 | EXTEND(SP, 1); |
| a0d0e21e | 765 | RETPUSHUNDEF; |
| 774d564b | 766 | } |
| 79072805 | 767 | |
| a0d0e21e LW |
768 | sv = POPs; |
| 769 | if (!sv) | |
| 770 | RETPUSHUNDEF; | |
| 85e6fe83 | 771 | |
| 765f542d | 772 | SV_CHECK_THINKFIRST_COW_DROP(sv); |
| 85e6fe83 | 773 | |
| a0d0e21e LW |
774 | switch (SvTYPE(sv)) { |
| 775 | case SVt_NULL: | |
| 776 | break; | |
| 777 | case SVt_PVAV: | |
| 778 | av_undef((AV*)sv); | |
| 779 | break; | |
| 780 | case SVt_PVHV: | |
| 781 | hv_undef((HV*)sv); | |
| 782 | break; | |
| 783 | case SVt_PVCV: | |
| 041457d9 | 784 | if (cv_const_sv((CV*)sv) && ckWARN(WARN_MISC)) |
| 9014280d | 785 | Perl_warner(aTHX_ packWARN(WARN_MISC), "Constant subroutine %s undefined", |
| 54310121 | 786 | CvANON((CV*)sv) ? "(anonymous)" : GvENAME(CvGV((CV*)sv))); |
| 5f66b61c | 787 | /* FALLTHROUGH */ |
| 9607fc9c | 788 | case SVt_PVFM: |
| 6fc92669 GS |
789 | { |
| 790 | /* let user-undef'd sub keep its identity */ | |
| 0bd48802 | 791 | GV* const gv = CvGV((CV*)sv); |
| 6fc92669 GS |
792 | cv_undef((CV*)sv); |
| 793 | CvGV((CV*)sv) = gv; | |
| 794 | } | |
| a0d0e21e | 795 | break; |
| 8e07c86e | 796 | case SVt_PVGV: |
| 44a8e56a | 797 | if (SvFAKE(sv)) |
| 3280af22 | 798 | SvSetMagicSV(sv, &PL_sv_undef); |
| 20408e3c GS |
799 | else { |
| 800 | GP *gp; | |
| 801 | gp_free((GV*)sv); | |
| a02a5408 | 802 | Newxz(gp, 1, GP); |
| 20408e3c | 803 | GvGP(sv) = gp_ref(gp); |
| 561b68a9 | 804 | GvSV(sv) = newSV(0); |
| 57843af0 | 805 | GvLINE(sv) = CopLINE(PL_curcop); |
| 20408e3c GS |
806 | GvEGV(sv) = (GV*)sv; |
| 807 | GvMULTI_on(sv); | |
| 808 | } | |
| 44a8e56a | 809 | break; |
| a0d0e21e | 810 | default: |
| b15aece3 | 811 | if (SvTYPE(sv) >= SVt_PV && SvPVX_const(sv) && SvLEN(sv)) { |
| 8bd4d4c5 | 812 | SvPV_free(sv); |
| c445ea15 | 813 | SvPV_set(sv, NULL); |
| 4633a7c4 | 814 | SvLEN_set(sv, 0); |
| a0d0e21e | 815 | } |
| 0c34ef67 | 816 | SvOK_off(sv); |
| 4633a7c4 | 817 | SvSETMAGIC(sv); |
| 79072805 | 818 | } |
| a0d0e21e LW |
819 | |
| 820 | RETPUSHUNDEF; | |
| 79072805 LW |
821 | } |
| 822 | ||
| a0d0e21e | 823 | PP(pp_predec) |
| 79072805 | 824 | { |
| 97aff369 | 825 | dVAR; dSP; |
| f39684df | 826 | if (SvTYPE(TOPs) >= SVt_PVGV && SvTYPE(TOPs) != SVt_PVLV) |
| d470f89e | 827 | DIE(aTHX_ PL_no_modify); |
| 3510b4a1 NC |
828 | if (!SvREADONLY(TOPs) && SvIOK_notUV(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) |
| 829 | && SvIVX(TOPs) != IV_MIN) | |
| 55497cff | 830 | { |
| 45977657 | 831 | SvIV_set(TOPs, SvIVX(TOPs) - 1); |
| 55497cff | 832 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
| 748a9306 LW |
833 | } |
| 834 | else | |
| 835 | sv_dec(TOPs); | |
| a0d0e21e LW |
836 | SvSETMAGIC(TOPs); |
| 837 | return NORMAL; | |
| 838 | } | |
| 79072805 | 839 | |
| a0d0e21e LW |
840 | PP(pp_postinc) |
| 841 | { | |
| 97aff369 | 842 | dVAR; dSP; dTARGET; |
| f39684df | 843 | if (SvTYPE(TOPs) >= SVt_PVGV && SvTYPE(TOPs) != SVt_PVLV) |
| d470f89e | 844 | DIE(aTHX_ PL_no_modify); |
| a0d0e21e | 845 | sv_setsv(TARG, TOPs); |
| 3510b4a1 NC |
846 | if (!SvREADONLY(TOPs) && SvIOK_notUV(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) |
| 847 | && SvIVX(TOPs) != IV_MAX) | |
| 55497cff | 848 | { |
| 45977657 | 849 | SvIV_set(TOPs, SvIVX(TOPs) + 1); |
| 55497cff | 850 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
| 748a9306 LW |
851 | } |
| 852 | else | |
| 853 | sv_inc(TOPs); | |
| a0d0e21e | 854 | SvSETMAGIC(TOPs); |
| 1e54a23f | 855 | /* special case for undef: see thread at 2003-03/msg00536.html in archive */ |
| a0d0e21e LW |
856 | if (!SvOK(TARG)) |
| 857 | sv_setiv(TARG, 0); | |
| 858 | SETs(TARG); | |
| 859 | return NORMAL; | |
| 860 | } | |
| 79072805 | 861 | |
| a0d0e21e LW |
862 | PP(pp_postdec) |
| 863 | { | |
| 97aff369 | 864 | dVAR; dSP; dTARGET; |
| f39684df | 865 | if (SvTYPE(TOPs) >= SVt_PVGV && SvTYPE(TOPs) != SVt_PVLV) |
| d470f89e | 866 | DIE(aTHX_ PL_no_modify); |
| a0d0e21e | 867 | sv_setsv(TARG, TOPs); |
| 3510b4a1 NC |
868 | if (!SvREADONLY(TOPs) && SvIOK_notUV(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) |
| 869 | && SvIVX(TOPs) != IV_MIN) | |
| 55497cff | 870 | { |
| 45977657 | 871 | SvIV_set(TOPs, SvIVX(TOPs) - 1); |
| 55497cff | 872 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
| 748a9306 LW |
873 | } |
| 874 | else | |
| 875 | sv_dec(TOPs); | |
| a0d0e21e LW |
876 | SvSETMAGIC(TOPs); |
| 877 | SETs(TARG); | |
| 878 | return NORMAL; | |
| 879 | } | |
| 79072805 | 880 | |
| a0d0e21e LW |
881 | /* Ordinary operators. */ |
| 882 | ||
| 883 | PP(pp_pow) | |
| 884 | { | |
| 97aff369 | 885 | dVAR; dSP; dATARGET; |
| 58d76dfd | 886 | #ifdef PERL_PRESERVE_IVUV |
| 52a96ae6 HS |
887 | bool is_int = 0; |
| 888 | #endif | |
| 889 | tryAMAGICbin(pow,opASSIGN); | |
| 890 | #ifdef PERL_PRESERVE_IVUV | |
| 891 | /* For integer to integer power, we do the calculation by hand wherever | |
| 892 | we're sure it is safe; otherwise we call pow() and try to convert to | |
| 893 | integer afterwards. */ | |
| 58d76dfd | 894 | { |
| 900658e3 PF |
895 | SvIV_please(TOPs); |
| 896 | if (SvIOK(TOPs)) { | |
| 897 | SvIV_please(TOPm1s); | |
| 898 | if (SvIOK(TOPm1s)) { | |
| 899 | UV power; | |
| 900 | bool baseuok; | |
| 901 | UV baseuv; | |
| 902 | ||
| 903 | if (SvUOK(TOPs)) { | |
| 904 | power = SvUVX(TOPs); | |
| 905 | } else { | |
| 906 | const IV iv = SvIVX(TOPs); | |
| 907 | if (iv >= 0) { | |
| 908 | power = iv; | |
| 909 | } else { | |
| 910 | goto float_it; /* Can't do negative powers this way. */ | |
| 911 | } | |
| 912 | } | |
| 913 | ||
| 914 | baseuok = SvUOK(TOPm1s); | |
| 915 | if (baseuok) { | |
| 916 | baseuv = SvUVX(TOPm1s); | |
| 917 | } else { | |
| 918 | const IV iv = SvIVX(TOPm1s); | |
| 919 | if (iv >= 0) { | |
| 920 | baseuv = iv; | |
| 921 | baseuok = TRUE; /* effectively it's a UV now */ | |
| 922 | } else { | |
| 923 | baseuv = -iv; /* abs, baseuok == false records sign */ | |
| 924 | } | |
| 925 | } | |
| 52a96ae6 HS |
926 | /* now we have integer ** positive integer. */ |
| 927 | is_int = 1; | |
| 928 | ||
| 929 | /* foo & (foo - 1) is zero only for a power of 2. */ | |
| 58d76dfd | 930 | if (!(baseuv & (baseuv - 1))) { |
| 52a96ae6 | 931 | /* We are raising power-of-2 to a positive integer. |
| 58d76dfd JH |
932 | The logic here will work for any base (even non-integer |
| 933 | bases) but it can be less accurate than | |
| 934 | pow (base,power) or exp (power * log (base)) when the | |
| 935 | intermediate values start to spill out of the mantissa. | |
| 936 | With powers of 2 we know this can't happen. | |
| 937 | And powers of 2 are the favourite thing for perl | |
| 938 | programmers to notice ** not doing what they mean. */ | |
| 939 | NV result = 1.0; | |
| 940 | NV base = baseuok ? baseuv : -(NV)baseuv; | |
| 900658e3 PF |
941 | |
| 942 | if (power & 1) { | |
| 943 | result *= base; | |
| 944 | } | |
| 945 | while (power >>= 1) { | |
| 946 | base *= base; | |
| 947 | if (power & 1) { | |
| 948 | result *= base; | |
| 949 | } | |
| 950 | } | |
| 58d76dfd JH |
951 | SP--; |
| 952 | SETn( result ); | |
| 52a96ae6 | 953 | SvIV_please(TOPs); |
| 58d76dfd | 954 | RETURN; |
| 52a96ae6 HS |
955 | } else { |
| 956 | register unsigned int highbit = 8 * sizeof(UV); | |
| 900658e3 PF |
957 | register unsigned int diff = 8 * sizeof(UV); |
| 958 | while (diff >>= 1) { | |
| 959 | highbit -= diff; | |
| 960 | if (baseuv >> highbit) { | |
| 961 | highbit += diff; | |
| 962 | } | |
| 52a96ae6 HS |
963 | } |
| 964 | /* we now have baseuv < 2 ** highbit */ | |
| 965 | if (power * highbit <= 8 * sizeof(UV)) { | |
| 966 | /* result will definitely fit in UV, so use UV math | |
| 967 | on same algorithm as above */ | |
| 968 | register UV result = 1; | |
| 969 | register UV base = baseuv; | |
| 900658e3 PF |
970 | const bool odd_power = (bool)(power & 1); |
| 971 | if (odd_power) { | |
| 972 | result *= base; | |
| 973 | } | |
| 974 | while (power >>= 1) { | |
| 975 | base *= base; | |
| 976 | if (power & 1) { | |
| 52a96ae6 | 977 | result *= base; |
| 52a96ae6 HS |
978 | } |
| 979 | } | |
| 980 | SP--; | |
| 0615a994 | 981 | if (baseuok || !odd_power) |
| 52a96ae6 HS |
982 | /* answer is positive */ |
| 983 | SETu( result ); | |
| 984 | else if (result <= (UV)IV_MAX) | |
| 985 | /* answer negative, fits in IV */ | |
| 986 | SETi( -(IV)result ); | |
| 987 | else if (result == (UV)IV_MIN) | |
| 988 | /* 2's complement assumption: special case IV_MIN */ | |
| 989 | SETi( IV_MIN ); | |
| 990 | else | |
| 991 | /* answer negative, doesn't fit */ | |
| 992 | SETn( -(NV)result ); | |
| 993 | RETURN; | |
| 994 | } | |
| 995 | } | |
| 996 | } | |
| 997 | } | |
| 58d76dfd | 998 | } |
| 52a96ae6 | 999 | float_it: |
| 58d76dfd | 1000 | #endif |
| a0d0e21e | 1001 | { |
| 52a96ae6 | 1002 | dPOPTOPnnrl; |
| 3aaeb624 JA |
1003 | |
| 1004 | #if defined(USE_LONG_DOUBLE) && defined(HAS_AIX_POWL_NEG_BASE_BUG) | |
| 1005 | /* | |
| 1006 | We are building perl with long double support and are on an AIX OS | |
| 1007 | afflicted with a powl() function that wrongly returns NaNQ for any | |
| 1008 | negative base. This was reported to IBM as PMR #23047-379 on | |
| 1009 | 03/06/2006. The problem exists in at least the following versions | |
| 1010 | of AIX and the libm fileset, and no doubt others as well: | |
| 1011 | ||
| 1012 | AIX 4.3.3-ML10 bos.adt.libm 4.3.3.50 | |
| 1013 | AIX 5.1.0-ML04 bos.adt.libm 5.1.0.29 | |
| 1014 | AIX 5.2.0 bos.adt.libm 5.2.0.85 | |
| 1015 | ||
| 1016 | So, until IBM fixes powl(), we provide the following workaround to | |
| 1017 | handle the problem ourselves. Our logic is as follows: for | |
| 1018 | negative bases (left), we use fmod(right, 2) to check if the | |
| 1019 | exponent is an odd or even integer: | |
| 1020 | ||
| 1021 | - if odd, powl(left, right) == -powl(-left, right) | |
| 1022 | - if even, powl(left, right) == powl(-left, right) | |
| 1023 | ||
| 1024 | If the exponent is not an integer, the result is rightly NaNQ, so | |
| 1025 | we just return that (as NV_NAN). | |
| 1026 | */ | |
| 1027 | ||
| 1028 | if (left < 0.0) { | |
| 1029 | NV mod2 = Perl_fmod( right, 2.0 ); | |
| 1030 | if (mod2 == 1.0 || mod2 == -1.0) { /* odd integer */ | |
| 1031 | SETn( -Perl_pow( -left, right) ); | |
| 1032 | } else if (mod2 == 0.0) { /* even integer */ | |
| 1033 | SETn( Perl_pow( -left, right) ); | |
| 1034 | } else { /* fractional power */ | |
| 1035 | SETn( NV_NAN ); | |
| 1036 | } | |
| 1037 | } else { | |
| 1038 | SETn( Perl_pow( left, right) ); | |
| 1039 | } | |
| 1040 | #else | |
| 52a96ae6 | 1041 | SETn( Perl_pow( left, right) ); |
| 3aaeb624 JA |
1042 | #endif /* HAS_AIX_POWL_NEG_BASE_BUG */ |
| 1043 | ||
| 52a96ae6 HS |
1044 | #ifdef PERL_PRESERVE_IVUV |
| 1045 | if (is_int) | |
| 1046 | SvIV_please(TOPs); | |
| 1047 | #endif | |
| 1048 | RETURN; | |
| 93a17b20 | 1049 | } |
| a0d0e21e LW |
1050 | } |
| 1051 | ||
| 1052 | PP(pp_multiply) | |
| 1053 | { | |
| 97aff369 | 1054 | dVAR; dSP; dATARGET; tryAMAGICbin(mult,opASSIGN); |
| 28e5dec8 JH |
1055 | #ifdef PERL_PRESERVE_IVUV |
| 1056 | SvIV_please(TOPs); | |
| 1057 | if (SvIOK(TOPs)) { | |
| 1058 | /* Unless the left argument is integer in range we are going to have to | |
| 1059 | use NV maths. Hence only attempt to coerce the right argument if | |
| 1060 | we know the left is integer. */ | |
| 1061 | /* Left operand is defined, so is it IV? */ | |
| 1062 | SvIV_please(TOPm1s); | |
| 1063 | if (SvIOK(TOPm1s)) { | |
| 1064 | bool auvok = SvUOK(TOPm1s); | |
| 1065 | bool buvok = SvUOK(TOPs); | |
| 1066 | const UV topmask = (~ (UV)0) << (4 * sizeof (UV)); | |
| 1067 | const UV botmask = ~((~ (UV)0) << (4 * sizeof (UV))); | |
| 1068 | UV alow; | |
| 1069 | UV ahigh; | |
| 1070 | UV blow; | |
| 1071 | UV bhigh; | |
| 1072 | ||
| 1073 | if (auvok) { | |
| 1074 | alow = SvUVX(TOPm1s); | |
| 1075 | } else { | |
| 1b6737cc | 1076 | const IV aiv = SvIVX(TOPm1s); |
| 28e5dec8 JH |
1077 | if (aiv >= 0) { |
| 1078 | alow = aiv; | |
| 1079 | auvok = TRUE; /* effectively it's a UV now */ | |
| 1080 | } else { | |
| 1081 | alow = -aiv; /* abs, auvok == false records sign */ | |
| 1082 | } | |
| 1083 | } | |
| 1084 | if (buvok) { | |
| 1085 | blow = SvUVX(TOPs); | |
| 1086 | } else { | |
| 1b6737cc | 1087 | const IV biv = SvIVX(TOPs); |
| 28e5dec8 JH |
1088 | if (biv >= 0) { |
| 1089 | blow = biv; | |
| 1090 | buvok = TRUE; /* effectively it's a UV now */ | |
| 1091 | } else { | |
| 1092 | blow = -biv; /* abs, buvok == false records sign */ | |
| 1093 | } | |
| 1094 | } | |
| 1095 | ||
| 1096 | /* If this does sign extension on unsigned it's time for plan B */ | |
| 1097 | ahigh = alow >> (4 * sizeof (UV)); | |
| 1098 | alow &= botmask; | |
| 1099 | bhigh = blow >> (4 * sizeof (UV)); | |
| 1100 | blow &= botmask; | |
| 1101 | if (ahigh && bhigh) { | |
| 6f207bd3 | 1102 | NOOP; |
| 28e5dec8 JH |
1103 | /* eg 32 bit is at least 0x10000 * 0x10000 == 0x100000000 |
| 1104 | which is overflow. Drop to NVs below. */ | |
| 1105 | } else if (!ahigh && !bhigh) { | |
| 1106 | /* eg 32 bit is at most 0xFFFF * 0xFFFF == 0xFFFE0001 | |
| 1107 | so the unsigned multiply cannot overflow. */ | |
| c445ea15 | 1108 | const UV product = alow * blow; |
| 28e5dec8 JH |
1109 | if (auvok == buvok) { |
| 1110 | /* -ve * -ve or +ve * +ve gives a +ve result. */ | |
| 1111 | SP--; | |
| 1112 | SETu( product ); | |
| 1113 | RETURN; | |
| 1114 | } else if (product <= (UV)IV_MIN) { | |
| 1115 | /* 2s complement assumption that (UV)-IV_MIN is correct. */ | |
| 1116 | /* -ve result, which could overflow an IV */ | |
| 1117 | SP--; | |
| 25716404 | 1118 | SETi( -(IV)product ); |
| 28e5dec8 JH |
1119 | RETURN; |
| 1120 | } /* else drop to NVs below. */ | |
| 1121 | } else { | |
| 1122 | /* One operand is large, 1 small */ | |
| 1123 | UV product_middle; | |
| 1124 | if (bhigh) { | |
| 1125 | /* swap the operands */ | |
| 1126 | ahigh = bhigh; | |
| 1127 | bhigh = blow; /* bhigh now the temp var for the swap */ | |
| 1128 | blow = alow; | |
| 1129 | alow = bhigh; | |
| 1130 | } | |
| 1131 | /* now, ((ahigh * blow) << half_UV_len) + (alow * blow) | |
| 1132 | multiplies can't overflow. shift can, add can, -ve can. */ | |
| 1133 | product_middle = ahigh * blow; | |
| 1134 | if (!(product_middle & topmask)) { | |
| 1135 | /* OK, (ahigh * blow) won't lose bits when we shift it. */ | |
| 1136 | UV product_low; | |
| 1137 | product_middle <<= (4 * sizeof (UV)); | |
| 1138 | product_low = alow * blow; | |
| 1139 | ||
| 1140 | /* as for pp_add, UV + something mustn't get smaller. | |
| 1141 | IIRC ANSI mandates this wrapping *behaviour* for | |
| 1142 | unsigned whatever the actual representation*/ | |
| 1143 | product_low += product_middle; | |
| 1144 | if (product_low >= product_middle) { | |
| 1145 | /* didn't overflow */ | |
| 1146 | if (auvok == buvok) { | |
| 1147 | /* -ve * -ve or +ve * +ve gives a +ve result. */ | |
| 1148 | SP--; | |
| 1149 | SETu( product_low ); | |
| 1150 | RETURN; | |
| 1151 | } else if (product_low <= (UV)IV_MIN) { | |
| 1152 | /* 2s complement assumption again */ | |
| 1153 | /* -ve result, which could overflow an IV */ | |
| 1154 | SP--; | |
| 25716404 | 1155 | SETi( -(IV)product_low ); |
| 28e5dec8 JH |
1156 | RETURN; |
| 1157 | } /* else drop to NVs below. */ | |
| 1158 | } | |
| 1159 | } /* product_middle too large */ | |
| 1160 | } /* ahigh && bhigh */ | |
| 1161 | } /* SvIOK(TOPm1s) */ | |
| 1162 | } /* SvIOK(TOPs) */ | |
| 1163 | #endif | |
| a0d0e21e LW |
1164 | { |
| 1165 | dPOPTOPnnrl; | |
| 1166 | SETn( left * right ); | |
| 1167 | RETURN; | |
| 79072805 | 1168 | } |
| a0d0e21e LW |
1169 | } |
| 1170 | ||
| 1171 | PP(pp_divide) | |
| 1172 | { | |
| 97aff369 | 1173 | dVAR; dSP; dATARGET; tryAMAGICbin(div,opASSIGN); |
| 5479d192 | 1174 | /* Only try to do UV divide first |
| 68795e93 | 1175 | if ((SLOPPYDIVIDE is true) or |
| 5479d192 NC |
1176 | (PERL_PRESERVE_IVUV is true and one or both SV is a UV too large |
| 1177 | to preserve)) | |
| 1178 | The assumption is that it is better to use floating point divide | |
| 1179 | whenever possible, only doing integer divide first if we can't be sure. | |
| 1180 | If NV_PRESERVES_UV is true then we know at compile time that no UV | |
| 1181 | can be too large to preserve, so don't need to compile the code to | |
| 1182 | test the size of UVs. */ | |
| 1183 | ||
| a0d0e21e | 1184 | #ifdef SLOPPYDIVIDE |
| 5479d192 NC |
1185 | # define PERL_TRY_UV_DIVIDE |
| 1186 | /* ensure that 20./5. == 4. */ | |
| a0d0e21e | 1187 | #else |
| 5479d192 NC |
1188 | # ifdef PERL_PRESERVE_IVUV |
| 1189 | # ifndef NV_PRESERVES_UV | |
| 1190 | # define PERL_TRY_UV_DIVIDE | |
| 1191 | # endif | |
| 1192 | # endif | |
| a0d0e21e | 1193 | #endif |
| 5479d192 NC |
1194 | |
| 1195 | #ifdef PERL_TRY_UV_DIVIDE | |
| 1196 | SvIV_please(TOPs); | |
| 1197 | if (SvIOK(TOPs)) { | |
| 1198 | SvIV_please(TOPm1s); | |
| 1199 | if (SvIOK(TOPm1s)) { | |
| 1200 | bool left_non_neg = SvUOK(TOPm1s); | |
| 1201 | bool right_non_neg = SvUOK(TOPs); | |
| 1202 | UV left; | |
| 1203 | UV right; | |
| 1204 | ||
| 1205 | if (right_non_neg) { | |
| 1206 | right = SvUVX(TOPs); | |
| 1207 | } | |
| 1208 | else { | |
| 1b6737cc | 1209 | const IV biv = SvIVX(TOPs); |
| 5479d192 NC |
1210 | if (biv >= 0) { |
| 1211 | right = biv; | |
| 1212 | right_non_neg = TRUE; /* effectively it's a UV now */ | |
| 1213 | } | |
| 1214 | else { | |
| 1215 | right = -biv; | |
| 1216 | } | |
| 1217 | } | |
| 1218 | /* historically undef()/0 gives a "Use of uninitialized value" | |
| 1219 | warning before dieing, hence this test goes here. | |
| 1220 | If it were immediately before the second SvIV_please, then | |
| 1221 | DIE() would be invoked before left was even inspected, so | |
| 1222 | no inpsection would give no warning. */ | |
| 1223 | if (right == 0) | |
| 1224 | DIE(aTHX_ "Illegal division by zero"); | |
| 1225 | ||
| 1226 | if (left_non_neg) { | |
| 1227 | left = SvUVX(TOPm1s); | |
| 1228 | } | |
| 1229 | else { | |
| 1b6737cc | 1230 | const IV aiv = SvIVX(TOPm1s); |
| 5479d192 NC |
1231 | if (aiv >= 0) { |
| 1232 | left = aiv; | |
| 1233 | left_non_neg = TRUE; /* effectively it's a UV now */ | |
| 1234 | } | |
| 1235 | else { | |
| 1236 | left = -aiv; | |
| 1237 | } | |
| 1238 | } | |
| 1239 | ||
| 1240 | if (left >= right | |
| 1241 | #ifdef SLOPPYDIVIDE | |
| 1242 | /* For sloppy divide we always attempt integer division. */ | |
| 1243 | #else | |
| 1244 | /* Otherwise we only attempt it if either or both operands | |
| 1245 | would not be preserved by an NV. If both fit in NVs | |
| 0c2ee62a NC |
1246 | we fall through to the NV divide code below. However, |
| 1247 | as left >= right to ensure integer result here, we know that | |
| 1248 | we can skip the test on the right operand - right big | |
| 1249 | enough not to be preserved can't get here unless left is | |
| 1250 | also too big. */ | |
| 1251 | ||
| 1252 | && (left > ((UV)1 << NV_PRESERVES_UV_BITS)) | |
| 5479d192 NC |
1253 | #endif |
| 1254 | ) { | |
| 1255 | /* Integer division can't overflow, but it can be imprecise. */ | |
| 1b6737cc | 1256 | const UV result = left / right; |
| 5479d192 NC |
1257 | if (result * right == left) { |
| 1258 | SP--; /* result is valid */ | |
| 1259 | if (left_non_neg == right_non_neg) { | |
| 1260 | /* signs identical, result is positive. */ | |
| 1261 | SETu( result ); | |
| 1262 | RETURN; | |
| 1263 | } | |
| 1264 | /* 2s complement assumption */ | |
| 1265 | if (result <= (UV)IV_MIN) | |
| 91f3b821 | 1266 | SETi( -(IV)result ); |
| 5479d192 NC |
1267 | else { |
| 1268 | /* It's exact but too negative for IV. */ | |
| 1269 | SETn( -(NV)result ); | |
| 1270 | } | |
| 1271 | RETURN; | |
| 1272 | } /* tried integer divide but it was not an integer result */ | |
| 32fdb065 | 1273 | } /* else (PERL_ABS(result) < 1.0) or (both UVs in range for NV) */ |
| 5479d192 NC |
1274 | } /* left wasn't SvIOK */ |
| 1275 | } /* right wasn't SvIOK */ | |
| 1276 | #endif /* PERL_TRY_UV_DIVIDE */ | |
| 1277 | { | |
| 1278 | dPOPPOPnnrl; | |
| 1279 | if (right == 0.0) | |
| 1280 | DIE(aTHX_ "Illegal division by zero"); | |
| 1281 | PUSHn( left / right ); | |
| 1282 | RETURN; | |
| 79072805 | 1283 | } |
| a0d0e21e LW |
1284 | } |
| 1285 | ||
| 1286 | PP(pp_modulo) | |
| 1287 | { | |
| 97aff369 | 1288 | dVAR; dSP; dATARGET; tryAMAGICbin(modulo,opASSIGN); |
| a0d0e21e | 1289 | { |
| 9c5ffd7c JH |
1290 | UV left = 0; |
| 1291 | UV right = 0; | |
| dc656993 JH |
1292 | bool left_neg = FALSE; |
| 1293 | bool right_neg = FALSE; | |
| e2c88acc NC |
1294 | bool use_double = FALSE; |
| 1295 | bool dright_valid = FALSE; | |
| 9c5ffd7c JH |
1296 | NV dright = 0.0; |
| 1297 | NV dleft = 0.0; | |
| 787eafbd | 1298 | |
| e2c88acc NC |
1299 | SvIV_please(TOPs); |
| 1300 | if (SvIOK(TOPs)) { | |
| 1301 | right_neg = !SvUOK(TOPs); | |
| 1302 | if (!right_neg) { | |
| 1303 | right = SvUVX(POPs); | |
| 1304 | } else { | |
| 1b6737cc | 1305 | const IV biv = SvIVX(POPs); |
| e2c88acc NC |
1306 | if (biv >= 0) { |
| 1307 | right = biv; | |
| 1308 | right_neg = FALSE; /* effectively it's a UV now */ | |
| 1309 | } else { | |
| 1310 | right = -biv; | |
| 1311 | } | |
| 1312 | } | |
| 1313 | } | |
| 1314 | else { | |
| 787eafbd | 1315 | dright = POPn; |
| 787eafbd IZ |
1316 | right_neg = dright < 0; |
| 1317 | if (right_neg) | |
| 1318 | dright = -dright; | |
| e2c88acc NC |
1319 | if (dright < UV_MAX_P1) { |
| 1320 | right = U_V(dright); | |
| 1321 | dright_valid = TRUE; /* In case we need to use double below. */ | |
| 1322 | } else { | |
| 1323 | use_double = TRUE; | |
| 1324 | } | |
| 787eafbd | 1325 | } |
| a0d0e21e | 1326 | |
| e2c88acc NC |
1327 | /* At this point use_double is only true if right is out of range for |
| 1328 | a UV. In range NV has been rounded down to nearest UV and | |
| 1329 | use_double false. */ | |
| 1330 | SvIV_please(TOPs); | |
| 1331 | if (!use_double && SvIOK(TOPs)) { | |
| 1332 | if (SvIOK(TOPs)) { | |
| 1333 | left_neg = !SvUOK(TOPs); | |
| 1334 | if (!left_neg) { | |
| 1335 | left = SvUVX(POPs); | |
| 1336 | } else { | |
| 0bd48802 | 1337 | const IV aiv = SvIVX(POPs); |
| e2c88acc NC |
1338 | if (aiv >= 0) { |
| 1339 | left = aiv; | |
| 1340 | left_neg = FALSE; /* effectively it's a UV now */ | |
| 1341 | } else { | |
| 1342 | left = -aiv; | |
| 1343 | } | |
| 1344 | } | |
| 1345 | } | |
| 1346 | } | |
| 787eafbd IZ |
1347 | else { |
| 1348 | dleft = POPn; | |
| 787eafbd IZ |
1349 | left_neg = dleft < 0; |
| 1350 | if (left_neg) | |
| 1351 | dleft = -dleft; | |
| 68dc0745 | 1352 | |
| e2c88acc NC |
1353 | /* This should be exactly the 5.6 behaviour - if left and right are |
| 1354 | both in range for UV then use U_V() rather than floor. */ | |
| 1355 | if (!use_double) { | |
| 1356 | if (dleft < UV_MAX_P1) { | |
| 1357 | /* right was in range, so is dleft, so use UVs not double. | |
| 1358 | */ | |
| 1359 | left = U_V(dleft); | |
| 1360 | } | |
| 1361 | /* left is out of range for UV, right was in range, so promote | |
| 1362 | right (back) to double. */ | |
| 1363 | else { | |
| 1364 | /* The +0.5 is used in 5.6 even though it is not strictly | |
| 1365 | consistent with the implicit +0 floor in the U_V() | |
| 1366 | inside the #if 1. */ | |
| 1367 | dleft = Perl_floor(dleft + 0.5); | |
| 1368 | use_double = TRUE; | |
| 1369 | if (dright_valid) | |
| 1370 | dright = Perl_floor(dright + 0.5); | |
| 1371 | else | |
| 1372 | dright = right; | |
| 1373 | } | |
| 1374 | } | |
| 1375 | } | |
| 787eafbd | 1376 | if (use_double) { |
| 65202027 | 1377 | NV dans; |
| 787eafbd | 1378 | |
| 787eafbd | 1379 | if (!dright) |
| cea2e8a9 | 1380 | DIE(aTHX_ "Illegal modulus zero"); |
| 787eafbd | 1381 | |
| 65202027 | 1382 | dans = Perl_fmod(dleft, dright); |
| 787eafbd IZ |
1383 | if ((left_neg != right_neg) && dans) |
| 1384 | dans = dright - dans; | |
| 1385 | if (right_neg) | |
| 1386 | dans = -dans; | |
| 1387 | sv_setnv(TARG, dans); | |
| 1388 | } | |
| 1389 | else { | |
| 1390 | UV ans; | |
| 1391 | ||
| 787eafbd | 1392 | if (!right) |
| cea2e8a9 | 1393 | DIE(aTHX_ "Illegal modulus zero"); |
| 787eafbd IZ |
1394 | |
| 1395 | ans = left % right; | |
| 1396 | if ((left_neg != right_neg) && ans) | |
| 1397 | ans = right - ans; | |
| 1398 | if (right_neg) { | |
| 1399 | /* XXX may warn: unary minus operator applied to unsigned type */ | |
| 1400 | /* could change -foo to be (~foo)+1 instead */ | |
| 1401 | if (ans <= ~((UV)IV_MAX)+1) | |
| 1402 | sv_setiv(TARG, ~ans+1); | |
| 1403 | else | |
| 65202027 | 1404 | sv_setnv(TARG, -(NV)ans); |
| 787eafbd IZ |
1405 | } |
| 1406 | else | |
| 1407 | sv_setuv(TARG, ans); | |
| 1408 | } | |
| 1409 | PUSHTARG; | |
| 1410 | RETURN; | |
| 79072805 | 1411 | } |
| a0d0e21e | 1412 | } |
| 79072805 | 1413 | |
| a0d0e21e LW |
1414 | PP(pp_repeat) |
| 1415 | { | |
| 97aff369 | 1416 | dVAR; dSP; dATARGET; tryAMAGICbin(repeat,opASSIGN); |
| 748a9306 | 1417 | { |
| 2b573ace JH |
1418 | register IV count; |
| 1419 | dPOPss; | |
| 5b295bef | 1420 | SvGETMAGIC(sv); |
| 2b573ace JH |
1421 | if (SvIOKp(sv)) { |
| 1422 | if (SvUOK(sv)) { | |
| 1b6737cc | 1423 | const UV uv = SvUV(sv); |
| 2b573ace JH |
1424 | if (uv > IV_MAX) |
| 1425 | count = IV_MAX; /* The best we can do? */ | |
| 1426 | else | |
| 1427 | count = uv; | |
| 1428 | } else { | |
| 0bd48802 | 1429 | const IV iv = SvIV(sv); |
| 2b573ace JH |
1430 | if (iv < 0) |
| 1431 | count = 0; | |
| 1432 | else | |
| 1433 | count = iv; | |
| 1434 | } | |
| 1435 | } | |
| 1436 | else if (SvNOKp(sv)) { | |
| 1b6737cc | 1437 | const NV nv = SvNV(sv); |
| 2b573ace JH |
1438 | if (nv < 0.0) |
| 1439 | count = 0; | |
| 1440 | else | |
| 1441 | count = (IV)nv; | |
| 1442 | } | |
| 1443 | else | |
| 1444 | count = SvIVx(sv); | |
| 533c011a | 1445 | if (GIMME == G_ARRAY && PL_op->op_private & OPpREPEAT_DOLIST) { |
| a0d0e21e | 1446 | dMARK; |
| 0bd48802 AL |
1447 | static const char oom_list_extend[] = "Out of memory during list extend"; |
| 1448 | const I32 items = SP - MARK; | |
| 1449 | const I32 max = items * count; | |
| 79072805 | 1450 | |
| 2b573ace JH |
1451 | MEM_WRAP_CHECK_1(max, SV*, oom_list_extend); |
| 1452 | /* Did the max computation overflow? */ | |
| 27d5b266 | 1453 | if (items > 0 && max > 0 && (max < items || max < count)) |
| 2b573ace | 1454 | Perl_croak(aTHX_ oom_list_extend); |
| a0d0e21e LW |
1455 | MEXTEND(MARK, max); |
| 1456 | if (count > 1) { | |
| 1457 | while (SP > MARK) { | |
| 976c8a39 JH |
1458 | #if 0 |
| 1459 | /* This code was intended to fix 20010809.028: | |
| 1460 | ||
| 1461 | $x = 'abcd'; | |
| 1462 | for (($x =~ /./g) x 2) { | |
| 1463 | print chop; # "abcdabcd" expected as output. | |
| 1464 | } | |
| 1465 | ||
| 1466 | * but that change (#11635) broke this code: | |
| 1467 | ||
| 1468 | $x = [("foo")x2]; # only one "foo" ended up in the anonlist. | |
| 1469 | ||
| 1470 | * I can't think of a better fix that doesn't introduce | |
| 1471 | * an efficiency hit by copying the SVs. The stack isn't | |
| 1472 | * refcounted, and mortalisation obviously doesn't | |
| 1473 | * Do The Right Thing when the stack has more than | |
| 1474 | * one pointer to the same mortal value. | |
| 1475 | * .robin. | |
| 1476 | */ | |
| e30acc16 RH |
1477 | if (*SP) { |
| 1478 | *SP = sv_2mortal(newSVsv(*SP)); | |
| 1479 | SvREADONLY_on(*SP); | |
| 1480 | } | |
| 976c8a39 JH |
1481 | #else |
| 1482 | if (*SP) | |
| 1483 | SvTEMP_off((*SP)); | |
| 1484 | #endif | |
| a0d0e21e | 1485 | SP--; |
| 79072805 | 1486 | } |
| a0d0e21e LW |
1487 | MARK++; |
| 1488 | repeatcpy((char*)(MARK + items), (char*)MARK, | |
| 1489 | items * sizeof(SV*), count - 1); | |
| 1490 | SP += max; | |
| 79072805 | 1491 | } |
| a0d0e21e LW |
1492 | else if (count <= 0) |
| 1493 | SP -= items; | |
| 79072805 | 1494 | } |
| a0d0e21e | 1495 | else { /* Note: mark already snarfed by pp_list */ |
| 0bd48802 | 1496 | SV * const tmpstr = POPs; |
| a0d0e21e | 1497 | STRLEN len; |
| 9b877dbb | 1498 | bool isutf; |
| 2b573ace JH |
1499 | static const char oom_string_extend[] = |
| 1500 | "Out of memory during string extend"; | |
| a0d0e21e | 1501 | |
| a0d0e21e LW |
1502 | SvSetSV(TARG, tmpstr); |
| 1503 | SvPV_force(TARG, len); | |
| 9b877dbb | 1504 | isutf = DO_UTF8(TARG); |
| 8ebc5c01 | 1505 | if (count != 1) { |
| 1506 | if (count < 1) | |
| 1507 | SvCUR_set(TARG, 0); | |
| 1508 | else { | |
| c445ea15 | 1509 | const STRLEN max = (UV)count * len; |
| 2b573ace JH |
1510 | if (len > ((MEM_SIZE)~0)/count) |
| 1511 | Perl_croak(aTHX_ oom_string_extend); | |
| 1512 | MEM_WRAP_CHECK_1(max, char, oom_string_extend); | |
| 8569b9dc | 1513 | SvGROW(TARG, max + 1); |
| a0d0e21e | 1514 | repeatcpy(SvPVX(TARG) + len, SvPVX(TARG), len, count - 1); |
| b162af07 | 1515 | SvCUR_set(TARG, SvCUR(TARG) * count); |
| 7a4c00b4 | 1516 | } |
| a0d0e21e | 1517 | *SvEND(TARG) = '\0'; |
| a0d0e21e | 1518 | } |
| dfcb284a GS |
1519 | if (isutf) |
| 1520 | (void)SvPOK_only_UTF8(TARG); | |
| 1521 | else | |
| 1522 | (void)SvPOK_only(TARG); | |
| b80b6069 RH |
1523 | |
| 1524 | if (PL_op->op_private & OPpREPEAT_DOLIST) { | |
| 1525 | /* The parser saw this as a list repeat, and there | |
| 1526 | are probably several items on the stack. But we're | |
| 1527 | in scalar context, and there's no pp_list to save us | |
| 1528 | now. So drop the rest of the items -- robin@kitsite.com | |
| 1529 | */ | |
| 1530 | dMARK; | |
| 1531 | SP = MARK; | |
| 1532 | } | |
| a0d0e21e | 1533 | PUSHTARG; |
| 79072805 | 1534 | } |
| a0d0e21e | 1535 | RETURN; |
| 748a9306 | 1536 | } |
| a0d0e21e | 1537 | } |
| 79072805 | 1538 | |
| a0d0e21e LW |
1539 | PP(pp_subtract) |
| 1540 | { | |
| 97aff369 | 1541 | dVAR; dSP; dATARGET; bool useleft; tryAMAGICbin(subtr,opASSIGN); |
| 28e5dec8 JH |
1542 | useleft = USE_LEFT(TOPm1s); |
| 1543 | #ifdef PERL_PRESERVE_IVUV | |
| 7dca457a NC |
1544 | /* See comments in pp_add (in pp_hot.c) about Overflow, and how |
| 1545 | "bad things" happen if you rely on signed integers wrapping. */ | |
| 28e5dec8 JH |
1546 | SvIV_please(TOPs); |
| 1547 | if (SvIOK(TOPs)) { | |
| 1548 | /* Unless the left argument is integer in range we are going to have to | |
| 1549 | use NV maths. Hence only attempt to coerce the right argument if | |
| 1550 | we know the left is integer. */ | |
| 9c5ffd7c JH |
1551 | register UV auv = 0; |
| 1552 | bool auvok = FALSE; | |
| 7dca457a NC |
1553 | bool a_valid = 0; |
| 1554 | ||
| 28e5dec8 | 1555 | if (!useleft) { |
| 7dca457a NC |
1556 | auv = 0; |
| 1557 | a_valid = auvok = 1; | |
| 1558 | /* left operand is undef, treat as zero. */ | |
| 28e5dec8 JH |
1559 | } else { |
| 1560 | /* Left operand is defined, so is it IV? */ | |
| 1561 | SvIV_please(TOPm1s); | |
| 1562 | if (SvIOK(TOPm1s)) { | |
| 7dca457a NC |
1563 | if ((auvok = SvUOK(TOPm1s))) |
| 1564 | auv = SvUVX(TOPm1s); | |
| 1565 | else { | |
| 1b6737cc | 1566 | register const IV aiv = SvIVX(TOPm1s); |
| 7dca457a NC |
1567 | if (aiv >= 0) { |
| 1568 | auv = aiv; | |
| 1569 | auvok = 1; /* Now acting as a sign flag. */ | |
| 1570 | } else { /* 2s complement assumption for IV_MIN */ | |
| 1571 | auv = (UV)-aiv; | |
| 28e5dec8 | 1572 | } |
| 7dca457a NC |
1573 | } |
| 1574 | a_valid = 1; | |
| 1575 | } | |
| 1576 | } | |
| 1577 | if (a_valid) { | |
| 1578 | bool result_good = 0; | |
| 1579 | UV result; | |
| 1580 | register UV buv; | |
| 1581 | bool buvok = SvUOK(TOPs); | |
| 9041c2e3 | 1582 | |
| 7dca457a NC |
1583 | if (buvok) |
| 1584 | buv = SvUVX(TOPs); | |
| 1585 | else { | |
| 1b6737cc | 1586 | register const IV biv = SvIVX(TOPs); |
| 7dca457a NC |
1587 | if (biv >= 0) { |
| 1588 | buv = biv; | |
| 1589 | buvok = 1; | |
| 1590 | } else | |
| 1591 | buv = (UV)-biv; | |
| 1592 | } | |
| 1593 | /* ?uvok if value is >= 0. basically, flagged as UV if it's +ve, | |
| 602f51c4 | 1594 | else "IV" now, independent of how it came in. |
| 7dca457a NC |
1595 | if a, b represents positive, A, B negative, a maps to -A etc |
| 1596 | a - b => (a - b) | |
| 1597 | A - b => -(a + b) | |
| 1598 | a - B => (a + b) | |
| 1599 | A - B => -(a - b) | |
| 1600 | all UV maths. negate result if A negative. | |
| 1601 | subtract if signs same, add if signs differ. */ | |
| 1602 | ||
| 1603 | if (auvok ^ buvok) { | |
| 1604 | /* Signs differ. */ | |
| 1605 | result = auv + buv; | |
| 1606 | if (result >= auv) | |
| 1607 | result_good = 1; | |
| 1608 | } else { | |
| 1609 | /* Signs same */ | |
| 1610 | if (auv >= buv) { | |
| 1611 | result = auv - buv; | |
| 1612 | /* Must get smaller */ | |
| 1613 | if (result <= auv) | |
| 1614 | result_good = 1; | |
| 1615 | } else { | |
| 1616 | result = buv - auv; | |
| 1617 | if (result <= buv) { | |
| 1618 | /* result really should be -(auv-buv). as its negation | |
| 1619 | of true value, need to swap our result flag */ | |
| 1620 | auvok = !auvok; | |
| 1621 | result_good = 1; | |
| 28e5dec8 | 1622 | } |
| 28e5dec8 JH |
1623 | } |
| 1624 | } | |
| 7dca457a NC |
1625 | if (result_good) { |
| 1626 | SP--; | |
| 1627 | if (auvok) | |
| 1628 | SETu( result ); | |
| 1629 | else { | |
| 1630 | /* Negate result */ | |
| 1631 | if (result <= (UV)IV_MIN) | |
| 1632 | SETi( -(IV)result ); | |
| 1633 | else { | |
| 1634 | /* result valid, but out of range for IV. */ | |
| 1635 | SETn( -(NV)result ); | |
| 1636 | } | |
| 1637 | } | |
| 1638 | RETURN; | |
| 1639 | } /* Overflow, drop through to NVs. */ | |
| 28e5dec8 JH |
1640 | } |
| 1641 | } | |
| 1642 | #endif | |
| 7dca457a | 1643 | useleft = USE_LEFT(TOPm1s); |
| a0d0e21e | 1644 | { |
| 28e5dec8 JH |
1645 | dPOPnv; |
| 1646 | if (!useleft) { | |
| 1647 | /* left operand is undef, treat as zero - value */ | |
| 1648 | SETn(-value); | |
| 1649 | RETURN; | |
| 1650 | } | |
| 1651 | SETn( TOPn - value ); | |
| 1652 | RETURN; | |
| 79072805 | 1653 | } |
| a0d0e21e | 1654 | } |
| 79072805 | 1655 | |
| a0d0e21e LW |
1656 | PP(pp_left_shift) |
| 1657 | { | |
| 97aff369 | 1658 | dVAR; dSP; dATARGET; tryAMAGICbin(lshift,opASSIGN); |
| a0d0e21e | 1659 | { |
| 1b6737cc | 1660 | const IV shift = POPi; |
| d0ba1bd2 | 1661 | if (PL_op->op_private & HINT_INTEGER) { |
| c445ea15 | 1662 | const IV i = TOPi; |
| 972b05a9 | 1663 | SETi(i << shift); |
| d0ba1bd2 JH |
1664 | } |
| 1665 | else { | |
| c445ea15 | 1666 | const UV u = TOPu; |
| 972b05a9 | 1667 | SETu(u << shift); |
| d0ba1bd2 | 1668 | } |
| 55497cff | 1669 | RETURN; |
| 79072805 | 1670 | } |
| a0d0e21e | 1671 | } |
| 79072805 | 1672 | |
| a0d0e21e LW |
1673 | PP(pp_right_shift) |
| 1674 | { | |
| 97aff369 | 1675 | dVAR; dSP; dATARGET; tryAMAGICbin(rshift,opASSIGN); |
| a0d0e21e | 1676 | { |
| 1b6737cc | 1677 | const IV shift = POPi; |
| d0ba1bd2 | 1678 | if (PL_op->op_private & HINT_INTEGER) { |
| 0bd48802 | 1679 | const IV i = TOPi; |
| 972b05a9 | 1680 | SETi(i >> shift); |
| d0ba1bd2 JH |
1681 | } |
| 1682 | else { | |
| 0bd48802 | 1683 | const UV u = TOPu; |
| 972b05a9 | 1684 | SETu(u >> shift); |
| d0ba1bd2 | 1685 | } |
| a0d0e21e | 1686 | RETURN; |
| 93a17b20 | 1687 | } |
| 79072805 LW |
1688 | } |
| 1689 | ||
| a0d0e21e | 1690 | PP(pp_lt) |
| 79072805 | 1691 | { |
| 97aff369 | 1692 | dVAR; dSP; tryAMAGICbinSET(lt,0); |
| 28e5dec8 JH |
1693 | #ifdef PERL_PRESERVE_IVUV |
| 1694 | SvIV_please(TOPs); | |
| 1695 | if (SvIOK(TOPs)) { | |
| 1696 | SvIV_please(TOPm1s); | |
| 1697 | if (SvIOK(TOPm1s)) { | |
| 1698 | bool auvok = SvUOK(TOPm1s); | |
| 1699 | bool buvok = SvUOK(TOPs); | |
| a227d84d | 1700 | |
| 28e5dec8 | 1701 | if (!auvok && !buvok) { /* ## IV < IV ## */ |
| 1b6737cc AL |
1702 | const IV aiv = SvIVX(TOPm1s); |
| 1703 | const IV biv = SvIVX(TOPs); | |
| 28e5dec8 JH |
1704 | |
| 1705 | SP--; | |
| 1706 | SETs(boolSV(aiv < biv)); | |
| 1707 | RETURN; | |
| 1708 | } | |
| 1709 | if (auvok && buvok) { /* ## UV < UV ## */ | |
| 1b6737cc AL |
1710 | const UV auv = SvUVX(TOPm1s); |
| 1711 | const UV buv = SvUVX(TOPs); | |
| 28e5dec8 JH |
1712 | |
| 1713 | SP--; | |
| 1714 | SETs(boolSV(auv < buv)); | |
| 1715 | RETURN; | |
| 1716 | } | |
| 1717 | if (auvok) { /* ## UV < IV ## */ | |
| 1718 | UV auv; | |
| 1b6737cc | 1719 | const IV biv = SvIVX(TOPs); |
| 28e5dec8 JH |
1720 | SP--; |
| 1721 | if (biv < 0) { | |
| 1722 | /* As (a) is a UV, it's >=0, so it cannot be < */ | |
| 1723 | SETs(&PL_sv_no); | |
| 1724 | RETURN; | |
| 1725 | } | |
| 1726 | auv = SvUVX(TOPs); | |
| 28e5dec8 JH |
1727 | SETs(boolSV(auv < (UV)biv)); |
| 1728 | RETURN; | |
| 1729 | } | |
| 1730 | { /* ## IV < UV ## */ | |
| 1b6737cc | 1731 | const IV aiv = SvIVX(TOPm1s); |
| 28e5dec8 JH |
1732 | UV buv; |
| 1733 | ||
| 28e5dec8 JH |
1734 | if (aiv < 0) { |
| 1735 | /* As (b) is a UV, it's >=0, so it must be < */ | |
| 1736 | SP--; | |
| 1737 | SETs(&PL_sv_yes); | |
| 1738 | RETURN; | |
| 1739 | } | |
| 1740 | buv = SvUVX(TOPs); | |
| 1741 | SP--; | |
| 28e5dec8 JH |
1742 | SETs(boolSV((UV)aiv < buv)); |
| 1743 | RETURN; | |
| 1744 | } | |
| 1745 | } | |
| 1746 | } | |
| 1747 | #endif | |
| 30de85b6 | 1748 | #ifndef NV_PRESERVES_UV |
| 50fb3111 NC |
1749 | #ifdef PERL_PRESERVE_IVUV |
| 1750 | else | |
| 1751 | #endif | |
| 0bdaccee NC |
1752 | if (SvROK(TOPs) && !SvAMAGIC(TOPs) && SvROK(TOPm1s) && !SvAMAGIC(TOPm1s)) { |
| 1753 | SP--; | |
| 1754 | SETs(boolSV(SvRV(TOPs) < SvRV(TOPp1s))); | |
| 1755 | RETURN; | |
| 1756 | } | |
| 30de85b6 | 1757 | #endif |
| a0d0e21e | 1758 | { |
| cab190d4 JD |
1759 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
| 1760 | dPOPTOPnnrl; | |
| 1761 | if (Perl_isnan(left) || Perl_isnan(right)) | |
| 1762 | RETSETNO; | |
| 1763 | SETs(boolSV(left < right)); | |
| 1764 | #else | |
| a0d0e21e | 1765 | dPOPnv; |
| 54310121 | 1766 | SETs(boolSV(TOPn < value)); |
| cab190d4 | 1767 | #endif |
| a0d0e21e | 1768 | RETURN; |
| 79072805 | 1769 | } |
| a0d0e21e | 1770 | } |
| 79072805 | 1771 | |
| a0d0e21e LW |
1772 | PP(pp_gt) |
| 1773 | { | |
| 97aff369 | 1774 | dVAR; dSP; tryAMAGICbinSET(gt,0); |
| 28e5dec8 JH |
1775 | #ifdef PERL_PRESERVE_IVUV |
| 1776 | SvIV_please(TOPs); | |
| 1777 | if (SvIOK(TOPs)) { | |
| 1778 | SvIV_please(TOPm1s); | |
| 1779 | if (SvIOK(TOPm1s)) { | |
| 1780 | bool auvok = SvUOK(TOPm1s); | |
| 1781 | bool buvok = SvUOK(TOPs); | |
| a227d84d | 1782 | |
| 28e5dec8 | 1783 | if (!auvok && !buvok) { /* ## IV > IV ## */ |
| 1b6737cc AL |
1784 | const IV aiv = SvIVX(TOPm1s); |
| 1785 | const IV biv = SvIVX(TOPs); | |
| 1786 | ||
| 28e5dec8 JH |
1787 | SP--; |
| 1788 | SETs(boolSV(aiv > biv)); | |
| 1789 | RETURN; | |
| 1790 | } | |
| 1791 | if (auvok && buvok) { /* ## UV > UV ## */ | |
| 1b6737cc AL |
1792 | const UV auv = SvUVX(TOPm1s); |
| 1793 | const UV buv = SvUVX(TOPs); | |
| 28e5dec8 JH |
1794 | |
| 1795 | SP--; | |
| 1796 | SETs(boolSV(auv > buv)); | |
| 1797 | RETURN; | |
| 1798 | } | |
| 1799 | if (auvok) { /* ## UV > IV ## */ | |
| 1800 | UV auv; | |
| 1b6737cc AL |
1801 | const IV biv = SvIVX(TOPs); |
| 1802 | ||
| 28e5dec8 JH |
1803 | SP--; |
| 1804 | if (biv < 0) { | |
| 1805 | /* As (a) is a UV, it's >=0, so it must be > */ | |
| 1806 | SETs(&PL_sv_yes); | |
| 1807 | RETURN; | |
| 1808 | } | |
| 1809 | auv = SvUVX(TOPs); | |
| 28e5dec8 JH |
1810 | SETs(boolSV(auv > (UV)biv)); |
| 1811 | RETURN; | |
| 1812 | } | |
| 1813 | { /* ## IV > UV ## */ | |
| 1b6737cc | 1814 | const IV aiv = SvIVX(TOPm1s); |
| 28e5dec8 JH |
1815 | UV buv; |
| 1816 | ||
| 28e5dec8 JH |
1817 | if (aiv < 0) { |
| 1818 | /* As (b) is a UV, it's >=0, so it cannot be > */ | |
| 1819 | SP--; | |
| 1820 | SETs(&PL_sv_no); | |
| 1821 | RETURN; | |
| 1822 | } | |
| 1823 | buv = SvUVX(TOPs); | |
| 1824 | SP--; | |
| 28e5dec8 JH |
1825 | SETs(boolSV((UV)aiv > buv)); |
| 1826 | RETURN; | |
| 1827 | } | |
| 1828 | } | |
| 1829 | } | |
| 1830 | #endif | |
| 30de85b6 | 1831 | #ifndef NV_PRESERVES_UV |
| 50fb3111 NC |
1832 | #ifdef PERL_PRESERVE_IVUV |
| 1833 | else | |
| 1834 | #endif | |
| 0bdaccee | 1835 | if (SvROK(TOPs) && !SvAMAGIC(TOPs) && SvROK(TOPm1s) && !SvAMAGIC(TOPm1s)) { |
| 30de85b6 NC |
1836 | SP--; |
| 1837 | SETs(boolSV(SvRV(TOPs) > SvRV(TOPp1s))); | |
| 1838 | RETURN; | |
| 1839 | } | |
| 1840 | #endif | |
| a0d0e21e | 1841 | { |
| cab190d4 JD |
1842 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
| 1843 | dPOPTOPnnrl; | |
| 1844 | if (Perl_isnan(left) || Perl_isnan(right)) | |
| 1845 | RETSETNO; | |
| 1846 | SETs(boolSV(left > right)); | |
| 1847 | #else | |
| a0d0e21e | 1848 | dPOPnv; |
| 54310121 | 1849 | SETs(boolSV(TOPn > value)); |
| cab190d4 | 1850 | #endif |
| a0d0e21e | 1851 | RETURN; |
| 79072805 | 1852 | } |
| a0d0e21e LW |
1853 | } |
| 1854 | ||
| 1855 | PP(pp_le) | |
| 1856 | { | |
| 97aff369 | 1857 | dVAR; dSP; tryAMAGICbinSET(le,0); |
| 28e5dec8 JH |
1858 | #ifdef PERL_PRESERVE_IVUV |
| 1859 | SvIV_please(TOPs); | |
| 1860 | if (SvIOK(TOPs)) { | |
| 1861 | SvIV_please(TOPm1s); | |
| 1862 | if (SvIOK(TOPm1s)) { | |
| 1863 | bool auvok = SvUOK(TOPm1s); | |
| 1864 | bool buvok = SvUOK(TOPs); | |
| a227d84d | 1865 | |
| 28e5dec8 | 1866 | if (!auvok && !buvok) { /* ## IV <= IV ## */ |
| 1b6737cc AL |
1867 | const IV aiv = SvIVX(TOPm1s); |
| 1868 | const IV biv = SvIVX(TOPs); | |
| 28e5dec8 JH |
1869 | |
| 1870 | SP--; | |
| 1871 | SETs(boolSV(aiv <= biv)); | |
| 1872 | RETURN; | |
| 1873 | } | |
| 1874 | if (auvok && buvok) { /* ## UV <= UV ## */ | |
| 1875 | UV auv = SvUVX(TOPm1s); | |
| 1876 | UV buv = SvUVX(TOPs); | |
| 1877 | ||
| 1878 | SP--; | |
| 1879 | SETs(boolSV(auv <= buv)); | |
| 1880 | RETURN; | |
| 1881 | } | |
| 1882 | if (auvok) { /* ## UV <= IV ## */ | |
| 1883 | UV auv; | |
| 1b6737cc AL |
1884 | const IV biv = SvIVX(TOPs); |
| 1885 | ||
| 28e5dec8 JH |
1886 | SP--; |
| 1887 | if (biv < 0) { | |
| 1888 | /* As (a) is a UV, it's >=0, so a cannot be <= */ | |
| 1889 | SETs(&PL_sv_no); | |
| 1890 | RETURN; | |
| 1891 | } | |
| 1892 | auv = SvUVX(TOPs); | |
| 28e5dec8 JH |
1893 | SETs(boolSV(auv <= (UV)biv)); |
| 1894 | RETURN; | |
| 1895 | } | |
| 1896 | { /* ## IV <= UV ## */ | |
| 1b6737cc | 1897 | const IV aiv = SvIVX(TOPm1s); |
| 28e5dec8 | 1898 | UV buv; |
| 1b6737cc | 1899 | |
| 28e5dec8 JH |
1900 | if (aiv < 0) { |
| 1901 | /* As (b) is a UV, it's >=0, so a must be <= */ | |
| 1902 | SP--; | |
| 1903 | SETs(&PL_sv_yes); | |
| 1904 | RETURN; | |
| 1905 | } | |
| 1906 | buv = SvUVX(TOPs); | |
| 1907 | SP--; | |
| 28e5dec8 JH |
1908 | SETs(boolSV((UV)aiv <= buv)); |
| 1909 | RETURN; | |
| 1910 | } | |
| 1911 | } | |
| 1912 | } | |
| 1913 | #endif | |
| 30de85b6 | 1914 | #ifndef NV_PRESERVES_UV |
| 50fb3111 NC |
1915 | #ifdef PERL_PRESERVE_IVUV |
| 1916 | else | |
| 1917 | #endif | |
| 0bdaccee | 1918 | if (SvROK(TOPs) && !SvAMAGIC(TOPs) && SvROK(TOPm1s) && !SvAMAGIC(TOPm1s)) { |
| 30de85b6 NC |
1919 | SP--; |
| 1920 | SETs(boolSV(SvRV(TOPs) <= SvRV(TOPp1s))); | |
| 1921 | RETURN; | |
| 1922 | } | |
| 1923 | #endif | |
| a0d0e21e | 1924 | { |
| cab190d4 JD |
1925 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
| 1926 | dPOPTOPnnrl; | |
| 1927 | if (Perl_isnan(left) || Perl_isnan(right)) | |
| 1928 | RETSETNO; | |
| 1929 | SETs(boolSV(left <= right)); | |
| 1930 | #else | |
| a0d0e21e | 1931 | dPOPnv; |
| 54310121 | 1932 | SETs(boolSV(TOPn <= value)); |
| cab190d4 | 1933 | #endif |
| a0d0e21e | 1934 | RETURN; |
| 79072805 | 1935 | } |
| a0d0e21e LW |
1936 | } |
| 1937 | ||
| 1938 | PP(pp_ge) | |
| 1939 | { | |
| 97aff369 | 1940 | dVAR; dSP; tryAMAGICbinSET(ge,0); |
| 28e5dec8 JH |
1941 | #ifdef PERL_PRESERVE_IVUV |
| 1942 | SvIV_please(TOPs); | |
| 1943 | if (SvIOK(TOPs)) { | |
| 1944 | SvIV_please(TOPm1s); | |
| 1945 | if (SvIOK(TOPm1s)) { | |
| 1946 | bool auvok = SvUOK(TOPm1s); | |
| 1947 | bool buvok = SvUOK(TOPs); | |
| a227d84d | 1948 | |
| 28e5dec8 | 1949 | if (!auvok && !buvok) { /* ## IV >= IV ## */ |
| 1b6737cc AL |
1950 | const IV aiv = SvIVX(TOPm1s); |
| 1951 | const IV biv = SvIVX(TOPs); | |
| 1952 | ||
| 28e5dec8 JH |
1953 | SP--; |
| 1954 | SETs(boolSV(aiv >= biv)); | |
| 1955 | RETURN; | |
| 1956 | } | |
| 1957 | if (auvok && buvok) { /* ## UV >= UV ## */ | |
| 1b6737cc AL |
1958 | const UV auv = SvUVX(TOPm1s); |
| 1959 | const UV buv = SvUVX(TOPs); | |
| 1960 | ||
| 28e5dec8 JH |
1961 | SP--; |
| 1962 | SETs(boolSV(auv >= buv)); | |
| 1963 | RETURN; | |
| 1964 | } | |
| 1965 | if (auvok) { /* ## UV >= IV ## */ | |
| 1966 | UV auv; | |
| 1b6737cc AL |
1967 | const IV biv = SvIVX(TOPs); |
| 1968 | ||
| 28e5dec8 JH |
1969 | SP--; |
| 1970 | if (biv < 0) { | |
| 1971 | /* As (a) is a UV, it's >=0, so it must be >= */ | |
| 1972 | SETs(&PL_sv_yes); | |
| 1973 | RETURN; | |
| 1974 | } | |
| 1975 | auv = SvUVX(TOPs); | |
| 28e5dec8 JH |
1976 | SETs(boolSV(auv >= (UV)biv)); |
| 1977 | RETURN; | |
| 1978 | } | |
| 1979 | { /* ## IV >= UV ## */ | |
| 1b6737cc | 1980 | const IV aiv = SvIVX(TOPm1s); |
| 28e5dec8 | 1981 | UV buv; |
| 1b6737cc | 1982 | |
| 28e5dec8 JH |
1983 | if (aiv < 0) { |
| 1984 | /* As (b) is a UV, it's >=0, so a cannot be >= */ | |
| 1985 | SP--; | |
| 1986 | SETs(&PL_sv_no); | |
| 1987 | RETURN; | |
| 1988 | } | |
| 1989 | buv = SvUVX(TOPs); | |
| 1990 | SP--; | |
| 28e5dec8 JH |
1991 | SETs(boolSV((UV)aiv >= buv)); |
| 1992 | RETURN; | |
| 1993 | } | |
| 1994 | } | |
| 1995 | } | |
| 1996 | #endif | |
| 30de85b6 | 1997 | #ifndef NV_PRESERVES_UV |
| 50fb3111 NC |
1998 | #ifdef PERL_PRESERVE_IVUV |
| 1999 | else | |
| 2000 | #endif | |
| 0bdaccee | 2001 | if (SvROK(TOPs) && !SvAMAGIC(TOPs) && SvROK(TOPm1s) && !SvAMAGIC(TOPm1s)) { |
| 30de85b6 NC |
2002 | SP--; |
| 2003 | SETs(boolSV(SvRV(TOPs) >= SvRV(TOPp1s))); | |
| 2004 | RETURN; | |
| 2005 | } | |
| 2006 | #endif | |
| a0d0e21e | 2007 | { |
| cab190d4 JD |
2008 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
| 2009 | dPOPTOPnnrl; | |
| 2010 | if (Perl_isnan(left) || Perl_isnan(right)) | |
| 2011 | RETSETNO; | |
| 2012 | SETs(boolSV(left >= right)); | |
| 2013 | #else | |
| a0d0e21e | 2014 | dPOPnv; |
| 54310121 | 2015 | SETs(boolSV(TOPn >= value)); |
| cab190d4 | 2016 | #endif |
| a0d0e21e | 2017 | RETURN; |
| 79072805 | 2018 | } |
| a0d0e21e | 2019 | } |
| 79072805 | 2020 | |
| a0d0e21e LW |
2021 | PP(pp_ne) |
| 2022 | { | |
| 97aff369 | 2023 | dVAR; dSP; tryAMAGICbinSET(ne,0); |
| 3bb2c415 | 2024 | #ifndef NV_PRESERVES_UV |
| 0bdaccee | 2025 | if (SvROK(TOPs) && !SvAMAGIC(TOPs) && SvROK(TOPm1s) && !SvAMAGIC(TOPm1s)) { |
| e61d22ef NC |
2026 | SP--; |
| 2027 | SETs(boolSV(SvRV(TOPs) != SvRV(TOPp1s))); | |
| 3bb2c415 JH |
2028 | RETURN; |
| 2029 | } | |
| 2030 | #endif | |
| 28e5dec8 JH |
2031 | #ifdef PERL_PRESERVE_IVUV |
| 2032 | SvIV_please(TOPs); | |
| 2033 | if (SvIOK(TOPs)) { | |
| 2034 | SvIV_please(TOPm1s); | |
| 2035 | if (SvIOK(TOPm1s)) { | |
| 0bd48802 AL |
2036 | const bool auvok = SvUOK(TOPm1s); |
| 2037 | const bool buvok = SvUOK(TOPs); | |
| a227d84d | 2038 | |
| 30de85b6 NC |
2039 | if (auvok == buvok) { /* ## IV == IV or UV == UV ## */ |
| 2040 | /* Casting IV to UV before comparison isn't going to matter | |
| 2041 | on 2s complement. On 1s complement or sign&magnitude | |
| 2042 | (if we have any of them) it could make negative zero | |
| 2043 | differ from normal zero. As I understand it. (Need to | |
| 2044 | check - is negative zero implementation defined behaviour | |
| 2045 | anyway?). NWC */ | |
| 1b6737cc AL |
2046 | const UV buv = SvUVX(POPs); |
| 2047 | const UV auv = SvUVX(TOPs); | |
| 2048 | ||
| 28e5dec8 JH |
2049 | SETs(boolSV(auv != buv)); |
| 2050 | RETURN; | |
| 2051 | } | |
| 2052 | { /* ## Mixed IV,UV ## */ | |
| 2053 | IV iv; | |
| 2054 | UV uv; | |
| 2055 | ||
| 2056 | /* != is commutative so swap if needed (save code) */ | |
| 2057 | if (auvok) { | |
| 2058 | /* swap. top of stack (b) is the iv */ | |
| 2059 | iv = SvIVX(TOPs); | |
| 2060 | SP--; | |
| 2061 | if (iv < 0) { | |
| 2062 | /* As (a) is a UV, it's >0, so it cannot be == */ | |
| 2063 | SETs(&PL_sv_yes); | |
| 2064 | RETURN; | |
| 2065 | } | |
| 2066 | uv = SvUVX(TOPs); | |
| 2067 | } else { | |
| 2068 | iv = SvIVX(TOPm1s); | |
| 2069 | SP--; | |
| 2070 | if (iv < 0) { | |
| 2071 | /* As (b) is a UV, it's >0, so it cannot be == */ | |
| 2072 | SETs(&PL_sv_yes); | |
| 2073 | RETURN; | |
| 2074 | } | |
| 2075 | uv = SvUVX(*(SP+1)); /* Do I want TOPp1s() ? */ | |
| 2076 | } | |
| 28e5dec8 JH |
2077 | SETs(boolSV((UV)iv != uv)); |
| 2078 | RETURN; | |
| 2079 | } | |
| 2080 | } | |
| 2081 | } | |
| 2082 | #endif | |
| a0d0e21e | 2083 | { |
| cab190d4 JD |
2084 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
| 2085 | dPOPTOPnnrl; | |
| 2086 | if (Perl_isnan(left) || Perl_isnan(right)) | |
| 2087 | RETSETYES; | |
| 2088 | SETs(boolSV(left != right)); | |
| 2089 | #else | |
| a0d0e21e | 2090 | dPOPnv; |
| 54310121 | 2091 | SETs(boolSV(TOPn != value)); |
| cab190d4 | 2092 | #endif |
| a0d0e21e LW |
2093 | RETURN; |
| 2094 | } | |
| 79072805 LW |
2095 | } |
| 2096 | ||
| a0d0e21e | 2097 | PP(pp_ncmp) |
| 79072805 | 2098 | { |
| 97aff369 | 2099 | dVAR; dSP; dTARGET; tryAMAGICbin(ncmp,0); |
| d8c7644e | 2100 | #ifndef NV_PRESERVES_UV |
| 0bdaccee | 2101 | if (SvROK(TOPs) && !SvAMAGIC(TOPs) && SvROK(TOPm1s) && !SvAMAGIC(TOPm1s)) { |
| 0bd48802 AL |
2102 | const UV right = PTR2UV(SvRV(POPs)); |
| 2103 | const UV left = PTR2UV(SvRV(TOPs)); | |
| e61d22ef | 2104 | SETi((left > right) - (left < right)); |
| d8c7644e JH |
2105 | RETURN; |
| 2106 | } | |
| 2107 | #endif | |
| 28e5dec8 JH |
2108 | #ifdef PERL_PRESERVE_IVUV |
| 2109 | /* Fortunately it seems NaN isn't IOK */ | |
| 2110 | SvIV_please(TOPs); | |
| 2111 | if (SvIOK(TOPs)) { | |
| 2112 | SvIV_please(TOPm1s); | |
| 2113 | if (SvIOK(TOPm1s)) { | |
| 1b6737cc AL |
2114 | const bool leftuvok = SvUOK(TOPm1s); |
| 2115 | const bool rightuvok = SvUOK(TOPs); | |
| 28e5dec8 JH |
2116 | I32 value; |
| 2117 | if (!leftuvok && !rightuvok) { /* ## IV <=> IV ## */ | |
| 1b6737cc AL |
2118 | const IV leftiv = SvIVX(TOPm1s); |
| 2119 | const IV rightiv = SvIVX(TOPs); | |
| 28e5dec8 JH |
2120 | |
| 2121 | if (leftiv > rightiv) | |
| 2122 | value = 1; | |
| 2123 | else if (leftiv < rightiv) | |
| 2124 | value = -1; | |
| 2125 | else | |
| 2126 | value = 0; | |
| 2127 | } else if (leftuvok && rightuvok) { /* ## UV <=> UV ## */ | |
| 1b6737cc AL |
2128 | const UV leftuv = SvUVX(TOPm1s); |
| 2129 | const UV rightuv = SvUVX(TOPs); | |
| 28e5dec8 JH |
2130 | |
| 2131 | if (leftuv > rightuv) | |
| 2132 | value = 1; | |
| 2133 | else if (leftuv < rightuv) | |
| 2134 | value = -1; | |
| 2135 | else | |
| 2136 | value = 0; | |
| 2137 | } else if (leftuvok) { /* ## UV <=> IV ## */ | |
| 1b6737cc | 2138 | const IV rightiv = SvIVX(TOPs); |
| 28e5dec8 JH |
2139 | if (rightiv < 0) { |
| 2140 | /* As (a) is a UV, it's >=0, so it cannot be < */ | |
| 2141 | value = 1; | |
| 2142 | } else { | |
| 1b6737cc | 2143 | const UV leftuv = SvUVX(TOPm1s); |
| 83bac5dd | 2144 | if (leftuv > (UV)rightiv) { |
| 28e5dec8 JH |
2145 | value = 1; |
| 2146 | } else if (leftuv < (UV)rightiv) { | |
| 2147 | value = -1; | |
| 2148 | } else { | |
| 2149 | value = 0; | |
| 2150 | } | |
| 2151 | } | |
| 2152 | } else { /* ## IV <=> UV ## */ | |
| 1b6737cc | 2153 | const IV leftiv = SvIVX(TOPm1s); |
| 28e5dec8 JH |
2154 | if (leftiv < 0) { |
| 2155 | /* As (b) is a UV, it's >=0, so it must be < */ | |
| 2156 | value = -1; | |
| 2157 | } else { | |
| 1b6737cc | 2158 | const UV rightuv = SvUVX(TOPs); |
| 83bac5dd | 2159 | if ((UV)leftiv > rightuv) { |
| 28e5dec8 | 2160 | value = 1; |
| 83bac5dd | 2161 | } else if ((UV)leftiv < rightuv) { |
| 28e5dec8 JH |
2162 | value = -1; |
| 2163 | } else { | |
| 2164 | value = 0; | |
| 2165 | } | |
| 2166 | } | |
| 2167 | } | |
| 2168 | SP--; | |
| 2169 | SETi(value); | |
| 2170 | RETURN; | |
| 2171 | } | |
| 2172 | } | |
| 2173 | #endif | |
| a0d0e21e LW |
2174 | { |
| 2175 | dPOPTOPnnrl; | |
| 2176 | I32 value; | |
| 79072805 | 2177 | |
| a3540c92 | 2178 | #ifdef Perl_isnan |
| 1ad04cfd JH |
2179 | if (Perl_isnan(left) || Perl_isnan(right)) { |
| 2180 | SETs(&PL_sv_undef); | |
| 2181 | RETURN; | |
| 2182 | } | |
| 2183 | value = (left > right) - (left < right); | |
| 2184 | #else | |
| ff0cee69 | 2185 | if (left == right) |
| a0d0e21e | 2186 | value = 0; |
| a0d0e21e LW |
2187 | else if (left < right) |
| 2188 | value = -1; | |
| 44a8e56a | 2189 | else if (left > right) |
| 2190 | value = 1; | |
| 2191 | else { | |
| 3280af22 | 2192 | SETs(&PL_sv_undef); |
| 44a8e56a | 2193 | RETURN; |
| 2194 | } | |
| 1ad04cfd | 2195 | #endif |
| a0d0e21e LW |
2196 | SETi(value); |
| 2197 | RETURN; | |
| 79072805 | 2198 | } |
| a0d0e21e | 2199 | } |
| 79072805 | 2200 | |
| afd9910b | 2201 | PP(pp_sle) |
| a0d0e21e | 2202 | { |
| 97aff369 | 2203 | dVAR; dSP; |
| 79072805 | 2204 | |
| afd9910b NC |
2205 | int amg_type = sle_amg; |
| 2206 | int multiplier = 1; | |
| 2207 | int rhs = 1; | |
| 79072805 | 2208 | |
| afd9910b NC |
2209 | switch (PL_op->op_type) { |
| 2210 | case OP_SLT: | |
| 2211 | amg_type = slt_amg; | |
| 2212 | /* cmp < 0 */ | |
| 2213 | rhs = 0; | |
| 2214 | break; | |
| 2215 | case OP_SGT: | |
| 2216 | amg_type = sgt_amg; | |
| 2217 | /* cmp > 0 */ | |
| 2218 | multiplier = -1; | |
| 2219 | rhs = 0; | |
| 2220 | break; | |
| 2221 | case OP_SGE: | |
| 2222 | amg_type = sge_amg; | |
| 2223 | /* cmp >= 0 */ | |
| 2224 | multiplier = -1; | |
| 2225 | break; | |
| 79072805 | 2226 | } |
| 79072805 | 2227 | |
| afd9910b | 2228 | tryAMAGICbinSET_var(amg_type,0); |
| a0d0e21e LW |
2229 | { |
| 2230 | dPOPTOPssrl; | |
| 1b6737cc | 2231 | const int cmp = (IN_LOCALE_RUNTIME |
| bbce6d69 | 2232 | ? sv_cmp_locale(left, right) |
| 2233 | : sv_cmp(left, right)); | |
| afd9910b | 2234 | SETs(boolSV(cmp * multiplier < rhs)); |
| a0d0e21e LW |
2235 | RETURN; |
| 2236 | } | |
| 2237 | } | |
| 79072805 | 2238 | |
| 36477c24 | 2239 | PP(pp_seq) |
| 2240 | { | |
| 97aff369 | 2241 | dVAR; dSP; tryAMAGICbinSET(seq,0); |
| 36477c24 | 2242 | { |
| 2243 | dPOPTOPssrl; | |
| 54310121 | 2244 | SETs(boolSV(sv_eq(left, right))); |
| a0d0e21e LW |
2245 | RETURN; |
| 2246 | } | |
| 2247 | } | |
| 79072805 | 2248 | |
| a0d0e21e | 2249 | PP(pp_sne) |
| 79072805 | 2250 | { |
| 97aff369 | 2251 | dVAR; dSP; tryAMAGICbinSET(sne,0); |
| a0d0e21e LW |
2252 | { |
| 2253 | dPOPTOPssrl; | |
| 54310121 | 2254 | SETs(boolSV(!sv_eq(left, right))); |
| a0d0e21e | 2255 | RETURN; |
| 463ee0b2 | 2256 | } |
| 79072805 LW |
2257 | } |
| 2258 | ||
| a0d0e21e | 2259 | PP(pp_scmp) |
| 79072805 | 2260 | { |
| 97aff369 | 2261 | dVAR; dSP; dTARGET; tryAMAGICbin(scmp,0); |
| a0d0e21e LW |
2262 | { |
| 2263 | dPOPTOPssrl; | |
| 1b6737cc | 2264 | const int cmp = (IN_LOCALE_RUNTIME |
| bbce6d69 | 2265 | ? sv_cmp_locale(left, right) |
| 2266 | : sv_cmp(left, right)); | |
| 2267 | SETi( cmp ); | |
| a0d0e21e LW |
2268 | RETURN; |
| 2269 | } | |
| 2270 | } | |
| 79072805 | 2271 | |
| 55497cff | 2272 | PP(pp_bit_and) |
| 2273 | { | |
| 97aff369 | 2274 | dVAR; dSP; dATARGET; tryAMAGICbin(band,opASSIGN); |
| a0d0e21e LW |
2275 | { |
| 2276 | dPOPTOPssrl; | |
| 5b295bef RD |
2277 | SvGETMAGIC(left); |
| 2278 | SvGETMAGIC(right); | |
| 4633a7c4 | 2279 | if (SvNIOKp(left) || SvNIOKp(right)) { |
| d0ba1bd2 | 2280 | if (PL_op->op_private & HINT_INTEGER) { |
| 1b6737cc | 2281 | const IV i = SvIV_nomg(left) & SvIV_nomg(right); |
| 972b05a9 | 2282 | SETi(i); |
| d0ba1bd2 JH |
2283 | } |
| 2284 | else { | |
| 1b6737cc | 2285 | const UV u = SvUV_nomg(left) & SvUV_nomg(right); |
| 972b05a9 | 2286 | SETu(u); |
| d0ba1bd2 | 2287 | } |
| a0d0e21e LW |
2288 | } |
| 2289 | else { | |
| 533c011a | 2290 | do_vop(PL_op->op_type, TARG, left, right); |
| a0d0e21e LW |
2291 | SETTARG; |
| 2292 | } | |
| 2293 | RETURN; | |
| 2294 | } | |
| 2295 | } | |
| 79072805 | 2296 | |
| a0d0e21e LW |
2297 | PP(pp_bit_or) |
| 2298 | { | |
| 3658c1f1 NC |
2299 | dVAR; dSP; dATARGET; |
| 2300 | const int op_type = PL_op->op_type; | |
| 2301 | ||
| 2302 | tryAMAGICbin_var((op_type == OP_BIT_OR ? bor_amg : bxor_amg), opASSIGN); | |
| a0d0e21e LW |
2303 | { |
| 2304 | dPOPTOPssrl; | |
| 5b295bef RD |
2305 | SvGETMAGIC(left); |
| 2306 | SvGETMAGIC(right); | |
| 4633a7c4 | 2307 | if (SvNIOKp(left) || SvNIOKp(right)) { |
| d0ba1bd2 | 2308 | if (PL_op->op_private & HINT_INTEGER) { |
| 3658c1f1 NC |
2309 | const IV l = (USE_LEFT(left) ? SvIV_nomg(left) : 0); |
| 2310 | const IV r = SvIV_nomg(right); | |
| 2311 | const IV result = op_type == OP_BIT_OR ? (l | r) : (l ^ r); | |
| 2312 | SETi(result); | |
| d0ba1bd2 JH |
2313 | } |
| 2314 | else { | |
| 3658c1f1 NC |
2315 | const UV l = (USE_LEFT(left) ? SvUV_nomg(left) : 0); |
| 2316 | const UV r = SvUV_nomg(right); | |
| 2317 | const UV result = op_type == OP_BIT_OR ? (l | r) : (l ^ r); | |
| 2318 | SETu(result); | |
| d0ba1bd2 | 2319 | } |
| a0d0e21e LW |
2320 | } |
| 2321 | else { | |
| 3658c1f1 | 2322 | do_vop(op_type, TARG, left, right); |
| a0d0e21e LW |
2323 | SETTARG; |
| 2324 | } | |
| 2325 | RETURN; | |
| 79072805 | 2326 | } |
| a0d0e21e | 2327 | } |
| 79072805 | 2328 | |
| a0d0e21e LW |
2329 | PP(pp_negate) |
| 2330 | { | |
| 97aff369 | 2331 | dVAR; dSP; dTARGET; tryAMAGICun(neg); |
| a0d0e21e LW |
2332 | { |
| 2333 | dTOPss; | |
| 1b6737cc | 2334 | const int flags = SvFLAGS(sv); |
| 5b295bef | 2335 | SvGETMAGIC(sv); |
| 28e5dec8 JH |
2336 | if ((flags & SVf_IOK) || ((flags & (SVp_IOK | SVp_NOK)) == SVp_IOK)) { |
| 2337 | /* It's publicly an integer, or privately an integer-not-float */ | |
| 2338 | oops_its_an_int: | |
| 9b0e499b GS |
2339 | if (SvIsUV(sv)) { |
| 2340 | if (SvIVX(sv) == IV_MIN) { | |
| 28e5dec8 | 2341 | /* 2s complement assumption. */ |
| 9b0e499b GS |
2342 | SETi(SvIVX(sv)); /* special case: -((UV)IV_MAX+1) == IV_MIN */ |
| 2343 | RETURN; | |
| 2344 | } | |
| 2345 | else if (SvUVX(sv) <= IV_MAX) { | |
| beccb14c | 2346 | SETi(-SvIVX(sv)); |
| 9b0e499b GS |
2347 | RETURN; |
| 2348 | } | |
| 2349 | } | |
| 2350 | else if (SvIVX(sv) != IV_MIN) { | |
| 2351 | SETi(-SvIVX(sv)); | |
| 2352 | RETURN; | |
| 2353 | } | |
| 28e5dec8 JH |
2354 | #ifdef PERL_PRESERVE_IVUV |
| 2355 | else { | |
| 2356 | SETu((UV)IV_MIN); | |
| 2357 | RETURN; | |
| 2358 | } | |
| 2359 | #endif | |
| 9b0e499b GS |
2360 | } |
| 2361 | if (SvNIOKp(sv)) | |
| a0d0e21e | 2362 | SETn(-SvNV(sv)); |
| 4633a7c4 | 2363 | else if (SvPOKp(sv)) { |
| a0d0e21e | 2364 | STRLEN len; |
| c445ea15 | 2365 | const char * const s = SvPV_const(sv, len); |
| bbce6d69 | 2366 | if (isIDFIRST(*s)) { |
| a0d0e21e LW |
2367 | sv_setpvn(TARG, "-", 1); |
| 2368 | sv_catsv(TARG, sv); | |
| 79072805 | 2369 | } |
| a0d0e21e LW |
2370 | else if (*s == '+' || *s == '-') { |
| 2371 | sv_setsv(TARG, sv); | |
| 2372 | *SvPV_force(TARG, len) = *s == '-' ? '+' : '-'; | |
| 79072805 | 2373 | } |
| 8eb28a70 JH |
2374 | else if (DO_UTF8(sv)) { |
| 2375 | SvIV_please(sv); | |
| 2376 | if (SvIOK(sv)) | |
| 2377 | goto oops_its_an_int; | |
| 2378 | if (SvNOK(sv)) | |
| 2379 | sv_setnv(TARG, -SvNV(sv)); | |
| 2380 | else { | |
| 2381 | sv_setpvn(TARG, "-", 1); | |
| 2382 | sv_catsv(TARG, sv); | |
| 2383 | } | |
| 834a4ddd | 2384 | } |
| 28e5dec8 | 2385 | else { |
| 8eb28a70 JH |
2386 | SvIV_please(sv); |
| 2387 | if (SvIOK(sv)) | |
| 2388 | goto oops_its_an_int; | |
| 2389 | sv_setnv(TARG, -SvNV(sv)); | |
| 28e5dec8 | 2390 | } |
| a0d0e21e | 2391 | SETTARG; |
| 79072805 | 2392 | } |
| 4633a7c4 LW |
2393 | else |
| 2394 | SETn(-SvNV(sv)); | |
| 79072805 | 2395 | } |
| a0d0e21e | 2396 | RETURN; |
| 79072805 LW |
2397 | } |
| 2398 | ||
| a0d0e21e | 2399 | PP(pp_not) |
| 79072805 | 2400 | { |
| 97aff369 | 2401 | dVAR; dSP; tryAMAGICunSET(not); |
| 3280af22 | 2402 | *PL_stack_sp = boolSV(!SvTRUE(*PL_stack_sp)); |
| a0d0e21e | 2403 | return NORMAL; |
| 79072805 LW |
2404 | } |
| 2405 | ||
| a0d0e21e | 2406 | PP(pp_complement) |
| 79072805 | 2407 | { |
| 97aff369 | 2408 | dVAR; dSP; dTARGET; tryAMAGICun(compl); |
| a0d0e21e LW |
2409 | { |
| 2410 | dTOPss; | |
| 5b295bef | 2411 | SvGETMAGIC(sv); |
| 4633a7c4 | 2412 | if (SvNIOKp(sv)) { |
| d0ba1bd2 | 2413 | if (PL_op->op_private & HINT_INTEGER) { |
| 1b6737cc | 2414 | const IV i = ~SvIV_nomg(sv); |
| 972b05a9 | 2415 | SETi(i); |
| d0ba1bd2 JH |
2416 | } |
| 2417 | else { | |
| 1b6737cc | 2418 | const UV u = ~SvUV_nomg(sv); |
| 972b05a9 | 2419 | SETu(u); |
| d0ba1bd2 | 2420 | } |
| a0d0e21e LW |
2421 | } |
| 2422 | else { | |
| 51723571 | 2423 | register U8 *tmps; |
| 55497cff | 2424 | register I32 anum; |
| a0d0e21e LW |
2425 | STRLEN len; |
| 2426 | ||
| 10516c54 | 2427 | (void)SvPV_nomg_const(sv,len); /* force check for uninit var */ |
| 891f9566 | 2428 | sv_setsv_nomg(TARG, sv); |
| 51723571 | 2429 | tmps = (U8*)SvPV_force(TARG, len); |
| a0d0e21e | 2430 | anum = len; |
| 1d68d6cd | 2431 | if (SvUTF8(TARG)) { |
| a1ca4561 | 2432 | /* Calculate exact length, let's not estimate. */ |
| 1d68d6cd | 2433 | STRLEN targlen = 0; |
| ba210ebe | 2434 | STRLEN l; |
| a1ca4561 YST |
2435 | UV nchar = 0; |
| 2436 | UV nwide = 0; | |
| 01f6e806 | 2437 | U8 * const send = tmps + len; |
| 74d49cd0 TS |
2438 | U8 * const origtmps = tmps; |
| 2439 | const UV utf8flags = UTF8_ALLOW_ANYUV; | |
| 1d68d6cd | 2440 | |
| 1d68d6cd | 2441 | while (tmps < send) { |
| 74d49cd0 TS |
2442 | const UV c = utf8n_to_uvchr(tmps, send-tmps, &l, utf8flags); |
| 2443 | tmps += l; | |
| 5bbb0b5a | 2444 | targlen += UNISKIP(~c); |
| a1ca4561 YST |
2445 | nchar++; |
| 2446 | if (c > 0xff) | |
| 2447 | nwide++; | |
| 1d68d6cd SC |
2448 | } |
| 2449 | ||
| 2450 | /* Now rewind strings and write them. */ | |
| 74d49cd0 | 2451 | tmps = origtmps; |
| a1ca4561 YST |
2452 | |
| 2453 | if (nwide) { | |
| 01f6e806 AL |
2454 | U8 *result; |
| 2455 | U8 *p; | |
| 2456 | ||
| 74d49cd0 | 2457 | Newx(result, targlen + 1, U8); |
| 01f6e806 | 2458 | p = result; |
| a1ca4561 | 2459 | while (tmps < send) { |
| 74d49cd0 TS |
2460 | const UV c = utf8n_to_uvchr(tmps, send-tmps, &l, utf8flags); |
| 2461 | tmps += l; | |
| 01f6e806 | 2462 | p = uvchr_to_utf8_flags(p, ~c, UNICODE_ALLOW_ANY); |
| a1ca4561 | 2463 | } |
| 01f6e806 | 2464 | *p = '\0'; |
| c1c21316 NC |
2465 | sv_usepvn_flags(TARG, (char*)result, targlen, |
| 2466 | SV_HAS_TRAILING_NUL); | |
| a1ca4561 YST |
2467 | SvUTF8_on(TARG); |
| 2468 | } | |
| 2469 | else { | |
| 01f6e806 AL |
2470 | U8 *result; |
| 2471 | U8 *p; | |
| 2472 | ||
| 74d49cd0 | 2473 | Newx(result, nchar + 1, U8); |
| 01f6e806 | 2474 | p = result; |
| a1ca4561 | 2475 | while (tmps < send) { |
| 74d49cd0 TS |
2476 | const U8 c = (U8)utf8n_to_uvchr(tmps, send-tmps, &l, utf8flags); |
| 2477 | tmps += l; | |
| 01f6e806 | 2478 | *p++ = ~c; |
| a1ca4561 | 2479 | } |
| 01f6e806 | 2480 | *p = '\0'; |
| c1c21316 | 2481 | sv_usepvn_flags(TARG, (char*)result, nchar, SV_HAS_TRAILING_NUL); |
| d0a21e00 | 2482 | SvUTF8_off(TARG); |
| 1d68d6cd | 2483 | } |
| 1d68d6cd SC |
2484 | SETs(TARG); |
| 2485 | RETURN; | |
| 2486 | } | |
| a0d0e21e | 2487 | #ifdef LIBERAL |
| 51723571 JH |
2488 | { |
| 2489 | register long *tmpl; | |
| 2490 | for ( ; anum && (unsigned long)tmps % sizeof(long); anum--, tmps++) | |
| 2491 | *tmps = ~*tmps; | |
| 2492 | tmpl = (long*)tmps; | |
| bb7a0f54 | 2493 | for ( ; anum >= (I32)sizeof(long); anum -= (I32)sizeof(long), tmpl++) |
| 51723571 JH |
2494 | *tmpl = ~*tmpl; |
| 2495 | tmps = (U8*)tmpl; | |
| 2496 | } | |
| a0d0e21e LW |
2497 | #endif |
| 2498 | for ( ; anum > 0; anum--, tmps++) | |
| 2499 | *tmps = ~*tmps; | |
| 2500 | ||
| 2501 | SETs(TARG); | |
| 2502 | } | |
| 2503 | RETURN; | |
| 2504 | } | |
| 79072805 LW |
2505 | } |
| 2506 | ||
| a0d0e21e LW |
2507 | /* integer versions of some of the above */ |
| 2508 | ||
| a0d0e21e | 2509 | PP(pp_i_multiply) |
| 79072805 | 2510 | { |
| 97aff369 | 2511 | dVAR; dSP; dATARGET; tryAMAGICbin(mult,opASSIGN); |
| a0d0e21e LW |
2512 | { |
| 2513 | dPOPTOPiirl; | |
| 2514 | SETi( left * right ); | |
| 2515 | RETURN; | |
| 2516 | } | |
| 79072805 LW |
2517 | } |
| 2518 | ||
| a0d0e21e | 2519 | PP(pp_i_divide) |
| 79072805 | 2520 | { |
| ece1bcef | 2521 | IV num; |
| 97aff369 | 2522 | dVAR; dSP; dATARGET; tryAMAGICbin(div,opASSIGN); |
| a0d0e21e LW |
2523 | { |
| 2524 | dPOPiv; | |
| 2525 | if (value == 0) | |
| ece1bcef SP |
2526 | DIE(aTHX_ "Illegal division by zero"); |
| 2527 | num = POPi; | |
| a0cec769 YST |
2528 | |
| 2529 | /* avoid FPE_INTOVF on some platforms when num is IV_MIN */ | |
| 2530 | if (value == -1) | |
| 2531 | value = - num; | |
| 2532 | else | |
| 2533 | value = num / value; | |
| a0d0e21e LW |
2534 | PUSHi( value ); |
| 2535 | RETURN; | |
| 2536 | } | |
| 79072805 LW |
2537 | } |
| 2538 | ||
| 224ec323 JH |
2539 | STATIC |
| 2540 | PP(pp_i_modulo_0) | |
| 2541 | { | |
| 2542 | /* This is the vanilla old i_modulo. */ | |
| 27da23d5 | 2543 | dVAR; dSP; dATARGET; tryAMAGICbin(modulo,opASSIGN); |
| 224ec323 JH |
2544 | { |
| 2545 | dPOPTOPiirl; | |
| 2546 | if (!right) | |
| 2547 | DIE(aTHX_ "Illegal modulus zero"); | |
| a0cec769 YST |
2548 | /* avoid FPE_INTOVF on some platforms when left is IV_MIN */ |
| 2549 | if (right == -1) | |
| 2550 | SETi( 0 ); | |
| 2551 | else | |
| 2552 | SETi( left % right ); | |
| 224ec323 JH |
2553 | RETURN; |
| 2554 | } | |
| 2555 | } | |
| 2556 | ||
| 11010fa3 | 2557 | #if defined(__GLIBC__) && IVSIZE == 8 |
| 224ec323 JH |
2558 | STATIC |
| 2559 | PP(pp_i_modulo_1) | |
| 2560 | { | |
| 224ec323 | 2561 | /* This is the i_modulo with the workaround for the _moddi3 bug |
| fce2b89e | 2562 | * in (at least) glibc 2.2.5 (the PERL_ABS() the workaround). |
| 224ec323 | 2563 | * See below for pp_i_modulo. */ |
| 97aff369 | 2564 | dVAR; dVAR; dSP; dATARGET; tryAMAGICbin(modulo,opASSIGN); |
| 224ec323 JH |
2565 | { |
| 2566 | dPOPTOPiirl; | |
| 2567 | if (!right) | |
| 2568 | DIE(aTHX_ "Illegal modulus zero"); | |
| a0cec769 YST |
2569 | /* avoid FPE_INTOVF on some platforms when left is IV_MIN */ |
| 2570 | if (right == -1) | |
| 2571 | SETi( 0 ); | |
| 2572 | else | |
| 2573 | SETi( left % PERL_ABS(right) ); | |
| 224ec323 JH |
2574 | RETURN; |
| 2575 | } | |
| 224ec323 | 2576 | } |
| fce2b89e | 2577 | #endif |
| 224ec323 | 2578 | |
| a0d0e21e | 2579 | PP(pp_i_modulo) |
| 79072805 | 2580 | { |
| 27da23d5 | 2581 | dVAR; dSP; dATARGET; tryAMAGICbin(modulo,opASSIGN); |
| 224ec323 JH |
2582 | { |
| 2583 | dPOPTOPiirl; | |
| 2584 | if (!right) | |
| 2585 | DIE(aTHX_ "Illegal modulus zero"); | |
| 2586 | /* The assumption is to use hereafter the old vanilla version... */ | |
| 2587 | PL_op->op_ppaddr = | |
| 2588 | PL_ppaddr[OP_I_MODULO] = | |
| 1c127fab | 2589 | Perl_pp_i_modulo_0; |
| 224ec323 JH |
2590 | /* .. but if we have glibc, we might have a buggy _moddi3 |
| 2591 | * (at least glicb 2.2.5 is known to have this bug), in other | |
| 2592 | * words our integer modulus with negative quad as the second | |
| 2593 | * argument might be broken. Test for this and re-patch the | |
| 2594 | * opcode dispatch table if that is the case, remembering to | |
| 2595 | * also apply the workaround so that this first round works | |
| 2596 | * right, too. See [perl #9402] for more information. */ | |
| 2597 | #if defined(__GLIBC__) && IVSIZE == 8 | |
| 2598 | { | |
| 2599 | IV l = 3; | |
| 2600 | IV r = -10; | |
| 2601 | /* Cannot do this check with inlined IV constants since | |
| 2602 | * that seems to work correctly even with the buggy glibc. */ | |
| 2603 | if (l % r == -3) { | |
| 2604 | /* Yikes, we have the bug. | |
| 2605 | * Patch in the workaround version. */ | |
| 2606 | PL_op->op_ppaddr = | |
| 2607 | PL_ppaddr[OP_I_MODULO] = | |
| 2608 | &Perl_pp_i_modulo_1; | |
| 2609 | /* Make certain we work right this time, too. */ | |
| 32fdb065 | 2610 | right = PERL_ABS(right); |
| 224ec323 JH |
2611 | } |
| 2612 | } | |
| 2613 | #endif | |
| a0cec769 YST |
2614 | /* avoid FPE_INTOVF on some platforms when left is IV_MIN */ |
| 2615 | if (right == -1) | |
| 2616 | SETi( 0 ); | |
| 2617 | else | |
| 2618 | SETi( left % right ); | |
| 224ec323 JH |
2619 | RETURN; |
| 2620 | } | |
| 79072805 LW |
2621 | } |
| 2622 | ||
| a0d0e21e | 2623 | PP(pp_i_add) |
| 79072805 | 2624 | { |
| 97aff369 | 2625 | dVAR; dSP; dATARGET; tryAMAGICbin(add,opASSIGN); |
| a0d0e21e | 2626 | { |
| 5e66d4f1 | 2627 | dPOPTOPiirl_ul; |
| a0d0e21e LW |
2628 | SETi( left + right ); |
| 2629 | RETURN; | |
| 79072805 | 2630 | } |
| 79072805 LW |
2631 | } |
| 2632 | ||
| a0d0e21e | 2633 | PP(pp_i_subtract) |
| 79072805 | 2634 | { |
| 97aff369 | 2635 | dVAR; dSP; dATARGET; tryAMAGICbin(subtr,opASSIGN); |
| a0d0e21e | 2636 | { |
| 5e66d4f1 | 2637 | dPOPTOPiirl_ul; |
| a0d0e21e LW |
2638 | SETi( left - right ); |
| 2639 | RETURN; | |
| 79072805 | 2640 | } |
| 79072805 LW |
2641 | } |
| 2642 | ||
| a0d0e21e | 2643 | PP(pp_i_lt) |
| 79072805 | 2644 | { |
| 97aff369 | 2645 | dVAR; dSP; tryAMAGICbinSET(lt,0); |
| a0d0e21e LW |
2646 | { |
| 2647 | dPOPTOPiirl; | |
| 54310121 | 2648 | SETs(boolSV(left < right)); |
| a0d0e21e LW |
2649 | RETURN; |
| 2650 | } | |
| 79072805 LW |
2651 | } |
| 2652 | ||
| a0d0e21e | 2653 | PP(pp_i_gt) |
| 79072805 | 2654 | { |
| 97aff369 | 2655 | dVAR; dSP; tryAMAGICbinSET(gt,0); |
| a0d0e21e LW |
2656 | { |
| 2657 | dPOPTOPiirl; | |
| 54310121 | 2658 | SETs(boolSV(left > right)); |
| a0d0e21e LW |
2659 | RETURN; |
| 2660 | } | |
| 79072805 LW |
2661 | } |
| 2662 | ||
| a0d0e21e | 2663 | PP(pp_i_le) |
| 79072805 | 2664 | { |
| 97aff369 | 2665 | dVAR; dSP; tryAMAGICbinSET(le,0); |
| a0d0e21e LW |
2666 | { |
| 2667 | dPOPTOPiirl; | |
| 54310121 | 2668 | SETs(boolSV(left <= right)); |
| a0d0e21e | 2669 | RETURN; |
| 85e6fe83 | 2670 | } |
| 79072805 LW |
2671 | } |
| 2672 | ||
| a0d0e21e | 2673 | PP(pp_i_ge) |
| 79072805 | 2674 | { |
| 97aff369 | 2675 | dVAR; dSP; tryAMAGICbinSET(ge,0); |
| a0d0e21e LW |
2676 | { |
| 2677 | dPOPTOPiirl; | |
| 54310121 | 2678 | SETs(boolSV(left >= right)); |
| a0d0e21e LW |
2679 | RETURN; |
| 2680 | } | |
| 79072805 LW |
2681 | } |
| 2682 | ||
| a0d0e21e | 2683 | PP(pp_i_eq) |
| 79072805 | 2684 | { |
| 97aff369 | 2685 | dVAR; dSP; tryAMAGICbinSET(eq,0); |
| a0d0e21e LW |
2686 | { |
| 2687 | dPOPTOPiirl; | |
| 54310121 | 2688 | SETs(boolSV(left == right)); |
| a0d0e21e LW |
2689 | RETURN; |
| 2690 | } | |
| 79072805 LW |
2691 | } |
| 2692 | ||
| a0d0e21e | 2693 | PP(pp_i_ne) |
| 79072805 | 2694 | { |
| 97aff369 | 2695 | dVAR; dSP; tryAMAGICbinSET(ne,0); |
| a0d0e21e LW |
2696 | { |
| 2697 | dPOPTOPiirl; | |
| 54310121 | 2698 | SETs(boolSV(left != right)); |
| a0d0e21e LW |
2699 | RETURN; |
| 2700 | } | |
| 79072805 LW |
2701 | } |
| 2702 | ||
| a0d0e21e | 2703 | PP(pp_i_ncmp) |
| 79072805 | 2704 | { |
| 97aff369 | 2705 | dVAR; dSP; dTARGET; tryAMAGICbin(ncmp,0); |
| a0d0e21e LW |
2706 | { |
| 2707 | dPOPTOPiirl; | |
| 2708 | I32 value; | |
| 79072805 | 2709 | |
| a0d0e21e | 2710 | if (left > right) |
| 79072805 | 2711 | value = 1; |
| a0d0e21e | 2712 | else if (left < right) |
| 79072805 | 2713 | value = -1; |
| a0d0e21e | 2714 | else |
| 79072805 | 2715 | value = 0; |
| a0d0e21e LW |
2716 | SETi(value); |
| 2717 | RETURN; | |
| 79072805 | 2718 | } |
| 85e6fe83 LW |
2719 | } |
| 2720 | ||
| 2721 | PP(pp_i_negate) | |
| 2722 | { | |
| 97aff369 | 2723 | dVAR; dSP; dTARGET; tryAMAGICun(neg); |
| 85e6fe83 LW |
2724 | SETi(-TOPi); |
| 2725 | RETURN; | |
| 2726 | } | |
| 2727 | ||
| 79072805 LW |
2728 | /* High falutin' math. */ |
| 2729 | ||
| 2730 | PP(pp_atan2) | |
| 2731 | { | |
| 97aff369 | 2732 | dVAR; dSP; dTARGET; tryAMAGICbin(atan2,0); |
| a0d0e21e LW |
2733 | { |
| 2734 | dPOPTOPnnrl; | |
| 65202027 | 2735 | SETn(Perl_atan2(left, right)); |
| a0d0e21e LW |
2736 | RETURN; |
| 2737 | } | |
| 79072805 LW |
2738 | } |
| 2739 | ||
| 2740 | PP(pp_sin) | |
| 2741 | { | |
| 71302fe3 NC |
2742 | dVAR; dSP; dTARGET; |
| 2743 | int amg_type = sin_amg; | |
| 2744 | const char *neg_report = NULL; | |
| bc81784a | 2745 | NV (*func)(NV) = Perl_sin; |
| 71302fe3 NC |
2746 | const int op_type = PL_op->op_type; |
| 2747 | ||
| 2748 | switch (op_type) { | |
| 2749 | case OP_COS: | |
| 2750 | amg_type = cos_amg; | |
| bc81784a | 2751 | func = Perl_cos; |
| 71302fe3 NC |
2752 | break; |
| 2753 | case OP_EXP: | |
| 2754 | amg_type = exp_amg; | |
| bc81784a | 2755 | func = Perl_exp; |
| 71302fe3 NC |
2756 | break; |
| 2757 | case OP_LOG: | |
| 2758 | amg_type = log_amg; | |
| bc81784a | 2759 | func = Perl_log; |
| 71302fe3 NC |
2760 | neg_report = "log"; |
| 2761 | break; | |
| 2762 | case OP_SQRT: | |
| 2763 | amg_type = sqrt_amg; | |
| bc81784a | 2764 | func = Perl_sqrt; |
| 71302fe3 NC |
2765 | neg_report = "sqrt"; |
| 2766 | break; | |
| a0d0e21e | 2767 | } |
| 79072805 | 2768 | |
| 71302fe3 | 2769 | tryAMAGICun_var(amg_type); |
| a0d0e21e | 2770 | { |
| 1b6737cc | 2771 | const NV value = POPn; |
| 71302fe3 NC |
2772 | if (neg_report) { |
| 2773 | if (op_type == OP_LOG ? (value <= 0.0) : (value < 0.0)) { | |
| 2774 | SET_NUMERIC_STANDARD(); | |
| 2775 | DIE(aTHX_ "Can't take %s of %"NVgf, neg_report, value); | |
| 2776 | } | |
| 2777 | } | |
| 2778 | XPUSHn(func(value)); | |
| a0d0e21e LW |
2779 | RETURN; |
| 2780 | } | |
| 79072805 LW |
2781 | } |
| 2782 | ||
| 56cb0a1c AD |
2783 | /* Support Configure command-line overrides for rand() functions. |
| 2784 | After 5.005, perhaps we should replace this by Configure support | |
| 2785 | for drand48(), random(), or rand(). For 5.005, though, maintain | |
| 2786 | compatibility by calling rand() but allow the user to override it. | |
| 2787 | See INSTALL for details. --Andy Dougherty 15 July 1998 | |
| 2788 | */ | |
| 85ab1d1d JH |
2789 | /* Now it's after 5.005, and Configure supports drand48() and random(), |
| 2790 | in addition to rand(). So the overrides should not be needed any more. | |
| 2791 | --Jarkko Hietaniemi 27 September 1998 | |
| 2792 | */ | |
| 2793 | ||
| 2794 | #ifndef HAS_DRAND48_PROTO | |
| 20ce7b12 | 2795 | extern double drand48 (void); |
| 56cb0a1c AD |
2796 | #endif |
| 2797 | ||
| 79072805 LW |
2798 | PP(pp_rand) |
| 2799 | { | |
| 97aff369 | 2800 | dVAR; dSP; dTARGET; |
| 65202027 | 2801 | NV value; |
| 79072805 LW |
2802 | if (MAXARG < 1) |
| 2803 | value = 1.0; | |
| 2804 | else | |
| 2805 | value = POPn; | |
| 2806 | if (value == 0.0) | |
| 2807 | value = 1.0; | |
| 80252599 | 2808 | if (!PL_srand_called) { |
| 85ab1d1d | 2809 | (void)seedDrand01((Rand_seed_t)seed()); |
| 80252599 | 2810 | PL_srand_called = TRUE; |
| 93dc8474 | 2811 | } |
| 85ab1d1d | 2812 | value *= Drand01(); |
| 79072805 LW |
2813 | XPUSHn(value); |
| 2814 | RETURN; | |
| 2815 | } | |
| 2816 | ||
| 2817 | PP(pp_srand) | |
| 2818 | { | |
| 97aff369 | 2819 | dVAR; dSP; |
| 0bd48802 | 2820 | const UV anum = (MAXARG < 1) ? seed() : POPu; |
| 85ab1d1d | 2821 | (void)seedDrand01((Rand_seed_t)anum); |
| 80252599 | 2822 | PL_srand_called = TRUE; |
| 79072805 LW |
2823 | EXTEND(SP, 1); |
| 2824 | RETPUSHYES; | |
| 2825 | } | |
| 2826 | ||
| 79072805 LW |
2827 | PP(pp_int) |
| 2828 | { | |
| 97aff369 | 2829 | dVAR; dSP; dTARGET; tryAMAGICun(int); |
| 774d564b | 2830 | { |
| 1b6737cc | 2831 | const IV iv = TOPi; /* attempt to convert to IV if possible. */ |
| 28e5dec8 JH |
2832 | /* XXX it's arguable that compiler casting to IV might be subtly |
| 2833 | different from modf (for numbers inside (IV_MIN,UV_MAX)) in which | |
| 2834 | else preferring IV has introduced a subtle behaviour change bug. OTOH | |
| 2835 | relying on floating point to be accurate is a bug. */ | |
| 2836 | ||
| 922c4365 MHM |
2837 | if (!SvOK(TOPs)) |
| 2838 | SETu(0); | |
| 2839 | else if (SvIOK(TOPs)) { | |
| 28e5dec8 | 2840 | if (SvIsUV(TOPs)) { |
| 1b6737cc | 2841 | const UV uv = TOPu; |
| 28e5dec8 JH |
2842 | SETu(uv); |
| 2843 | } else | |
| 2844 | SETi(iv); | |
| 2845 | } else { | |
| 1b6737cc | 2846 | const NV value = TOPn; |
| 1048ea30 | 2847 | if (value >= 0.0) { |
| 28e5dec8 JH |
2848 | if (value < (NV)UV_MAX + 0.5) { |
| 2849 | SETu(U_V(value)); | |
| 2850 | } else { | |
| 059a1014 | 2851 | SETn(Perl_floor(value)); |
| 28e5dec8 | 2852 | } |
| 1048ea30 | 2853 | } |
| 28e5dec8 JH |
2854 | else { |
| 2855 | if (value > (NV)IV_MIN - 0.5) { | |
| 2856 | SETi(I_V(value)); | |
| 2857 | } else { | |
| 1bbae031 | 2858 | SETn(Perl_ceil(value)); |
| 28e5dec8 JH |
2859 | } |
| 2860 | } | |
| 774d564b | 2861 | } |
| 79072805 | 2862 | } |
| 79072805 LW |
2863 | RETURN; |
| 2864 | } | |
| 2865 | ||
| 463ee0b2 LW |
2866 | PP(pp_abs) |
| 2867 | { | |
| 97aff369 | 2868 | dVAR; dSP; dTARGET; tryAMAGICun(abs); |
| a0d0e21e | 2869 | { |
| 28e5dec8 | 2870 | /* This will cache the NV value if string isn't actually integer */ |
| 1b6737cc | 2871 | const IV iv = TOPi; |
| a227d84d | 2872 | |
| 922c4365 MHM |
2873 | if (!SvOK(TOPs)) |
| 2874 | SETu(0); | |
| 2875 | else if (SvIOK(TOPs)) { | |
| 28e5dec8 JH |
2876 | /* IVX is precise */ |
| 2877 | if (SvIsUV(TOPs)) { | |
| 2878 | SETu(TOPu); /* force it to be numeric only */ | |
| 2879 | } else { | |
| 2880 | if (iv >= 0) { | |
| 2881 | SETi(iv); | |
| 2882 | } else { | |
| 2883 | if (iv != IV_MIN) { | |
| 2884 | SETi(-iv); | |
| 2885 | } else { | |
| 2886 | /* 2s complement assumption. Also, not really needed as | |
| 2887 | IV_MIN and -IV_MIN should both be %100...00 and NV-able */ | |
| 2888 | SETu(IV_MIN); | |
| 2889 | } | |
| a227d84d | 2890 | } |
| 28e5dec8 JH |
2891 | } |
| 2892 | } else{ | |
| 1b6737cc | 2893 | const NV value = TOPn; |
| 774d564b | 2894 | if (value < 0.0) |
| 1b6737cc | 2895 | SETn(-value); |
| a4474c9e DD |
2896 | else |
| 2897 | SETn(value); | |
| 774d564b | 2898 | } |
| a0d0e21e | 2899 | } |
| 774d564b | 2900 | RETURN; |
| 463ee0b2 LW |
2901 | } |
| 2902 | ||
| 79072805 LW |
2903 | PP(pp_oct) |
| 2904 | { | |
| 97aff369 | 2905 | dVAR; dSP; dTARGET; |
| 5c144d81 | 2906 | const char *tmps; |
| 53305cf1 | 2907 | I32 flags = PERL_SCAN_ALLOW_UNDERSCORES; |
| 6f894ead | 2908 | STRLEN len; |
| 53305cf1 NC |
2909 | NV result_nv; |
| 2910 | UV result_uv; | |
| 1b6737cc | 2911 | SV* const sv = POPs; |
| 79072805 | 2912 | |
| 349d4f2f | 2913 | tmps = (SvPV_const(sv, len)); |
| 2bc69dc4 NIS |
2914 | if (DO_UTF8(sv)) { |
| 2915 | /* If Unicode, try to downgrade | |
| 2916 | * If not possible, croak. */ | |
| 1b6737cc | 2917 | SV* const tsv = sv_2mortal(newSVsv(sv)); |
| 2bc69dc4 NIS |
2918 | |
| 2919 | SvUTF8_on(tsv); | |
| 2920 | sv_utf8_downgrade(tsv, FALSE); | |
| 349d4f2f | 2921 | tmps = SvPV_const(tsv, len); |
| 2bc69dc4 | 2922 | } |
| daa2adfd NC |
2923 | if (PL_op->op_type == OP_HEX) |
| 2924 | goto hex; | |
| 2925 | ||
| 6f894ead | 2926 | while (*tmps && len && isSPACE(*tmps)) |
| 53305cf1 | 2927 | tmps++, len--; |
| 9e24b6e2 | 2928 | if (*tmps == '0') |
| 53305cf1 | 2929 | tmps++, len--; |
| daa2adfd NC |
2930 | if (*tmps == 'x') { |
| 2931 | hex: | |
| 53305cf1 | 2932 | result_uv = grok_hex (tmps, &len, &flags, &result_nv); |
| daa2adfd | 2933 | } |
| 9e24b6e2 | 2934 | else if (*tmps == 'b') |
| 53305cf1 | 2935 | result_uv = grok_bin (tmps, &len, &flags, &result_nv); |
| 464e2e8a | 2936 | else |
| 53305cf1 NC |
2937 | result_uv = grok_oct (tmps, &len, &flags, &result_nv); |
| 2938 | ||
| 2939 | if (flags & PERL_SCAN_GREATER_THAN_UV_MAX) { | |
| 2940 | XPUSHn(result_nv); | |
| 2941 | } | |
| 2942 | else { | |
| 2943 | XPUSHu(result_uv); | |
| 2944 | } | |
| 79072805 LW |
2945 | RETURN; |
| 2946 | } | |
| 2947 | ||
| 2948 | /* String stuff. */ | |
| 2949 | ||
| 2950 | PP(pp_length) | |
| 2951 | { | |
| 97aff369 | 2952 | dVAR; dSP; dTARGET; |
| 0bd48802 | 2953 | SV * const sv = TOPs; |
| a0ed51b3 | 2954 | |
| 92331800 NC |
2955 | if (SvAMAGIC(sv)) { |
| 2956 | /* For an overloaded scalar, we can't know in advance if it's going to | |
| 2957 | be UTF-8 or not. Also, we can't call sv_len_utf8 as it likes to | |
| 2958 | cache the length. Maybe that should be a documented feature of it. | |
| 2959 | */ | |
| 2960 | STRLEN len; | |
| 2961 | const char *const p = SvPV_const(sv, len); | |
| 2962 | ||
| 2963 | if (DO_UTF8(sv)) { | |
| 899be101 | 2964 | SETi(utf8_length((U8*)p, (U8*)p + len)); |
| 92331800 NC |
2965 | } |
| 2966 | else | |
| 2967 | SETi(len); | |
| 2968 | ||
| 2969 | } | |
| 2970 | else if (DO_UTF8(sv)) | |
| 7e2040f0 GS |
2971 | SETi(sv_len_utf8(sv)); |
| 2972 | else | |
| 2973 | SETi(sv_len(sv)); | |
| 79072805 LW |
2974 | RETURN; |
| 2975 | } | |
| 2976 | ||
| 2977 | PP(pp_substr) | |
| 2978 | { | |
| 97aff369 | 2979 | dVAR; dSP; dTARGET; |
| 79072805 | 2980 | SV *sv; |
| 9c5ffd7c | 2981 | I32 len = 0; |
| 463ee0b2 | 2982 | STRLEN curlen; |
| 9402d6ed | 2983 | STRLEN utf8_curlen; |
| 79072805 LW |
2984 | I32 pos; |
| 2985 | I32 rem; | |
| 84902520 | 2986 | I32 fail; |
| e1ec3a88 AL |
2987 | const I32 lvalue = PL_op->op_flags & OPf_MOD || LVRET; |
| 2988 | const char *tmps; | |
| fc15ae8f | 2989 | const I32 arybase = CopARYBASE_get(PL_curcop); |
| 9402d6ed | 2990 | SV *repl_sv = NULL; |
| cbbf8932 | 2991 | const char *repl = NULL; |
| 7b8d334a | 2992 | STRLEN repl_len; |
| 1b6737cc | 2993 | const int num_args = PL_op->op_private & 7; |
| 13e30c65 | 2994 | bool repl_need_utf8_upgrade = FALSE; |
| 9402d6ed | 2995 | bool repl_is_utf8 = FALSE; |
| 79072805 | 2996 | |
| 20408e3c | 2997 | SvTAINTED_off(TARG); /* decontaminate */ |
| 7e2040f0 | 2998 | SvUTF8_off(TARG); /* decontaminate */ |
| 78f9721b SM |
2999 | if (num_args > 2) { |
| 3000 | if (num_args > 3) { | |
| 9402d6ed | 3001 | repl_sv = POPs; |
| 83003860 | 3002 | repl = SvPV_const(repl_sv, repl_len); |
| 9402d6ed | 3003 | repl_is_utf8 = DO_UTF8(repl_sv) && SvCUR(repl_sv); |
| 7b8d334a | 3004 | } |
| 79072805 | 3005 | len = POPi; |
| 5d82c453 | 3006 | } |
| 84902520 | 3007 | pos = POPi; |
| 79072805 | 3008 | sv = POPs; |
| 849ca7ee | 3009 | PUTBACK; |
| 9402d6ed JH |
3010 | if (repl_sv) { |
| 3011 | if (repl_is_utf8) { | |
| 3012 | if (!DO_UTF8(sv)) | |
| 3013 | sv_utf8_upgrade(sv); | |
| 3014 | } | |
| 13e30c65 JH |
3015 | else if (DO_UTF8(sv)) |
| 3016 | repl_need_utf8_upgrade = TRUE; | |
| 9402d6ed | 3017 | } |
| 5c144d81 | 3018 | tmps = SvPV_const(sv, curlen); |
| 7e2040f0 | 3019 | if (DO_UTF8(sv)) { |
| 9402d6ed JH |
3020 | utf8_curlen = sv_len_utf8(sv); |
| 3021 | if (utf8_curlen == curlen) | |
| 3022 | utf8_curlen = 0; | |
| a0ed51b3 | 3023 | else |
| 9402d6ed | 3024 | curlen = utf8_curlen; |
| a0ed51b3 | 3025 | } |
| d1c2b58a | 3026 | else |
| 9402d6ed | 3027 | utf8_curlen = 0; |
| a0ed51b3 | 3028 | |
| 84902520 TB |
3029 | if (pos >= arybase) { |
| 3030 | pos -= arybase; | |
| 3031 | rem = curlen-pos; | |
| 3032 | fail = rem; | |
| 78f9721b | 3033 | if (num_args > 2) { |
| 5d82c453 GA |
3034 | if (len < 0) { |
| 3035 | rem += len; | |
| 3036 | if (rem < 0) | |
| 3037 | rem = 0; | |
| 3038 | } | |
| 3039 | else if (rem > len) | |
| 3040 | rem = len; | |
| 3041 | } | |
| 68dc0745 | 3042 | } |
| 84902520 | 3043 | else { |
| 5d82c453 | 3044 | pos += curlen; |
| 78f9721b | 3045 | if (num_args < 3) |
| 5d82c453 GA |
3046 | rem = curlen; |
| 3047 | else if (len >= 0) { | |
| 3048 | rem = pos+len; | |
| 3049 | if (rem > (I32)curlen) | |
| 3050 | rem = curlen; | |
| 3051 | } | |
| 3052 | else { | |
| 3053 | rem = curlen+len; | |
| 3054 | if (rem < pos) | |
| 3055 | rem = pos; | |
| 3056 | } | |
| 3057 | if (pos < 0) | |
| 3058 | pos = 0; | |
| 3059 | fail = rem; | |
| 3060 | rem -= pos; | |
| 84902520 TB |
3061 | } |
| 3062 | if (fail < 0) { | |
| e476b1b5 GS |
3063 | if (lvalue || repl) |
| 3064 | Perl_croak(aTHX_ "substr outside of string"); | |
| 3065 | if (ckWARN(WARN_SUBSTR)) | |
| 9014280d | 3066 | Perl_warner(aTHX_ packWARN(WARN_SUBSTR), "substr outside of string"); |
| 2304df62 AD |
3067 | RETPUSHUNDEF; |
| 3068 | } | |
| 79072805 | 3069 | else { |
| 1b6737cc AL |
3070 | const I32 upos = pos; |
| 3071 | const I32 urem = rem; | |
| 9402d6ed | 3072 | if (utf8_curlen) |
| a0ed51b3 | 3073 | sv_pos_u2b(sv, &pos, &rem); |
| 79072805 | 3074 | tmps += pos; |
| 781e7547 DM |
3075 | /* we either return a PV or an LV. If the TARG hasn't been used |
| 3076 | * before, or is of that type, reuse it; otherwise use a mortal | |
| 3077 | * instead. Note that LVs can have an extended lifetime, so also | |
| 3078 | * dont reuse if refcount > 1 (bug #20933) */ | |
| 3079 | if (SvTYPE(TARG) > SVt_NULL) { | |
| 3080 | if ( (SvTYPE(TARG) == SVt_PVLV) | |
| 3081 | ? (!lvalue || SvREFCNT(TARG) > 1) | |
| 3082 | : lvalue) | |
| 3083 | { | |
| 3084 | TARG = sv_newmortal(); | |
| 3085 | } | |
| 3086 | } | |
| 3087 | ||
| 79072805 | 3088 | sv_setpvn(TARG, tmps, rem); |
| 12aa1545 | 3089 | #ifdef USE_LOCALE_COLLATE |
| 14befaf4 | 3090 | sv_unmagic(TARG, PERL_MAGIC_collxfrm); |
| 12aa1545 | 3091 | #endif |
| 9402d6ed | 3092 | if (utf8_curlen) |
| 7f66633b | 3093 | SvUTF8_on(TARG); |
| f7928d6c | 3094 | if (repl) { |
| 13e30c65 JH |
3095 | SV* repl_sv_copy = NULL; |
| 3096 | ||
| 3097 | if (repl_need_utf8_upgrade) { | |
| 3098 | repl_sv_copy = newSVsv(repl_sv); | |
| 3099 | sv_utf8_upgrade(repl_sv_copy); | |
| 349d4f2f | 3100 | repl = SvPV_const(repl_sv_copy, repl_len); |
| 13e30c65 JH |
3101 | repl_is_utf8 = DO_UTF8(repl_sv_copy) && SvCUR(sv); |
| 3102 | } | |
| c8faf1c5 | 3103 | sv_insert(sv, pos, rem, repl, repl_len); |
| 9402d6ed | 3104 | if (repl_is_utf8) |
| f7928d6c | 3105 | SvUTF8_on(sv); |
| 9402d6ed JH |
3106 | if (repl_sv_copy) |
| 3107 | SvREFCNT_dec(repl_sv_copy); | |
| f7928d6c | 3108 | } |
| c8faf1c5 | 3109 | else if (lvalue) { /* it's an lvalue! */ |
| dedeecda | 3110 | if (!SvGMAGICAL(sv)) { |
| 3111 | if (SvROK(sv)) { | |
| 13c5b33c | 3112 | SvPV_force_nolen(sv); |
| 599cee73 | 3113 | if (ckWARN(WARN_SUBSTR)) |
| 9014280d | 3114 | Perl_warner(aTHX_ packWARN(WARN_SUBSTR), |
| 599cee73 | 3115 | "Attempt to use reference as lvalue in substr"); |
| dedeecda | 3116 | } |
| f7877b28 NC |
3117 | if (isGV_with_GP(sv)) |
| 3118 | SvPV_force_nolen(sv); | |
| 3119 | else if (SvOK(sv)) /* is it defined ? */ | |
| 7f66633b | 3120 | (void)SvPOK_only_UTF8(sv); |
| dedeecda | 3121 | else |
| 3122 | sv_setpvn(sv,"",0); /* avoid lexical reincarnation */ | |
| 3123 | } | |
| 5f05dabc | 3124 | |
| a0d0e21e LW |
3125 | if (SvTYPE(TARG) < SVt_PVLV) { |
| 3126 | sv_upgrade(TARG, SVt_PVLV); | |
| c445ea15 | 3127 | sv_magic(TARG, NULL, PERL_MAGIC_substr, NULL, 0); |
| ed6116ce | 3128 | } |
| 6214ab63 | 3129 | else |
| 0c34ef67 | 3130 | SvOK_off(TARG); |
| a0d0e21e | 3131 | |
| 5f05dabc | 3132 | LvTYPE(TARG) = 'x'; |
| 6ff81951 GS |
3133 | if (LvTARG(TARG) != sv) { |
| 3134 | if (LvTARG(TARG)) | |
| 3135 | SvREFCNT_dec(LvTARG(TARG)); | |
| b37c2d43 | 3136 | LvTARG(TARG) = SvREFCNT_inc_simple(sv); |
| 6ff81951 | 3137 | } |
| 9aa983d2 JH |
3138 | LvTARGOFF(TARG) = upos; |
| 3139 | LvTARGLEN(TARG) = urem; | |
| 79072805 LW |
3140 | } |
| 3141 | } | |
| 849ca7ee | 3142 | SPAGAIN; |
| 79072805 LW |
3143 | PUSHs(TARG); /* avoid SvSETMAGIC here */ |
| 3144 | RETURN; | |
| 3145 | } | |
| 3146 | ||
| 3147 | PP(pp_vec) | |
| 3148 | { | |
| 97aff369 | 3149 | dVAR; dSP; dTARGET; |
| 1b6737cc AL |
3150 | register const IV size = POPi; |
| 3151 | register const IV offset = POPi; | |
| 3152 | register SV * const src = POPs; | |
| 3153 | const I32 lvalue = PL_op->op_flags & OPf_MOD || LVRET; | |
| a0d0e21e | 3154 | |
| 81e118e0 JH |
3155 | SvTAINTED_off(TARG); /* decontaminate */ |
| 3156 | if (lvalue) { /* it's an lvalue! */ | |
| 24aef97f HS |
3157 | if (SvREFCNT(TARG) > 1) /* don't share the TARG (#20933) */ |
| 3158 | TARG = sv_newmortal(); | |
| 81e118e0 JH |
3159 | if (SvTYPE(TARG) < SVt_PVLV) { |
| 3160 | sv_upgrade(TARG, SVt_PVLV); | |
| c445ea15 | 3161 | sv_magic(TARG, NULL, PERL_MAGIC_vec, NULL, 0); |
| 79072805 | 3162 | } |
| 81e118e0 JH |
3163 | LvTYPE(TARG) = 'v'; |
| 3164 | if (LvTARG(TARG) != src) { | |
| 3165 | if (LvTARG(TARG)) | |
| 3166 | SvREFCNT_dec(LvTARG(TARG)); | |
| b37c2d43 | 3167 | LvTARG(TARG) = SvREFCNT_inc_simple(src); |
| 79072805 | 3168 | } |
| 81e118e0 JH |
3169 | LvTARGOFF(TARG) = offset; |
| 3170 | LvTARGLEN(TARG) = size; | |
| 79072805 LW |
3171 | } |
| 3172 | ||
| 81e118e0 | 3173 | sv_setuv(TARG, do_vecget(src, offset, size)); |
| 79072805 LW |
3174 | PUSHs(TARG); |
| 3175 | RETURN; | |
| 3176 | } | |
| 3177 | ||
| 3178 | PP(pp_index) | |
| 3179 | { | |
| 97aff369 | 3180 | dVAR; dSP; dTARGET; |
| 79072805 LW |
3181 | SV *big; |
| 3182 | SV *little; | |
| c445ea15 | 3183 | SV *temp = NULL; |
| ad66a58c | 3184 | STRLEN biglen; |
| 2723d216 | 3185 | STRLEN llen = 0; |
| 79072805 LW |
3186 | I32 offset; |
| 3187 | I32 retval; | |
| 73ee8be2 NC |
3188 | const char *big_p; |
| 3189 | const char *little_p; | |
| fc15ae8f | 3190 | const I32 arybase = CopARYBASE_get(PL_curcop); |
| 2f040f7f NC |
3191 | bool big_utf8; |
| 3192 | bool little_utf8; | |
| 2723d216 | 3193 | const bool is_index = PL_op->op_type == OP_INDEX; |
| 79072805 | 3194 | |
| 2723d216 NC |
3195 | if (MAXARG >= 3) { |
| 3196 | /* arybase is in characters, like offset, so combine prior to the | |
| 3197 | UTF-8 to bytes calculation. */ | |
| 79072805 | 3198 | offset = POPi - arybase; |
| 2723d216 | 3199 | } |
| 79072805 LW |
3200 | little = POPs; |
| 3201 | big = POPs; | |
| 73ee8be2 NC |
3202 | big_p = SvPV_const(big, biglen); |
| 3203 | little_p = SvPV_const(little, llen); | |
| 3204 | ||
| e609e586 NC |
3205 | big_utf8 = DO_UTF8(big); |
| 3206 | little_utf8 = DO_UTF8(little); | |
| 3207 | if (big_utf8 ^ little_utf8) { | |
| 3208 | /* One needs to be upgraded. */ | |
| 2f040f7f NC |
3209 | if (little_utf8 && !PL_encoding) { |
| 3210 | /* Well, maybe instead we might be able to downgrade the small | |
| 3211 | string? */ | |
| 1eced8f8 | 3212 | char * const pv = (char*)bytes_from_utf8((U8 *)little_p, &llen, |
| 2f040f7f NC |
3213 | &little_utf8); |
| 3214 | if (little_utf8) { | |
| 3215 | /* If the large string is ISO-8859-1, and it's not possible to | |
| 3216 | convert the small string to ISO-8859-1, then there is no | |
| 3217 | way that it could be found anywhere by index. */ | |
| 3218 | retval = -1; | |
| 3219 | goto fail; | |
| 3220 | } | |
| e609e586 | 3221 | |
| 2f040f7f NC |
3222 | /* At this point, pv is a malloc()ed string. So donate it to temp |
| 3223 | to ensure it will get free()d */ | |
| 3224 | little = temp = newSV(0); | |
| 73ee8be2 NC |
3225 | sv_usepvn(temp, pv, llen); |
| 3226 | little_p = SvPVX(little); | |
| e609e586 | 3227 | } else { |
| 73ee8be2 NC |
3228 | temp = little_utf8 |
| 3229 | ? newSVpvn(big_p, biglen) : newSVpvn(little_p, llen); | |
| 2f040f7f NC |
3230 | |
| 3231 | if (PL_encoding) { | |
| 3232 | sv_recode_to_utf8(temp, PL_encoding); | |
| 3233 | } else { | |
| 3234 | sv_utf8_upgrade(temp); | |
| 3235 | } | |
| 3236 | if (little_utf8) { | |
| 3237 | big = temp; | |
| 3238 | big_utf8 = TRUE; | |
| 73ee8be2 | 3239 | big_p = SvPV_const(big, biglen); |
| 2f040f7f NC |
3240 | } else { |
| 3241 | little = temp; | |
| 73ee8be2 | 3242 | little_p = SvPV_const(little, llen); |
| 2f040f7f | 3243 | } |
| e609e586 NC |
3244 | } |
| 3245 | } | |
| 73ee8be2 NC |
3246 | if (SvGAMAGIC(big)) { |
| 3247 | /* Life just becomes a lot easier if I use a temporary here. | |
| 3248 | Otherwise I need to avoid calls to sv_pos_u2b(), which (dangerously) | |
| 3249 | will trigger magic and overloading again, as will fbm_instr() | |
| 3250 | */ | |
| 3251 | big = sv_2mortal(newSVpvn(big_p, biglen)); | |
| 3252 | if (big_utf8) | |
| 3253 | SvUTF8_on(big); | |
| 3254 | big_p = SvPVX(big); | |
| 3255 | } | |
| e4e44778 | 3256 | if (SvGAMAGIC(little) || (is_index && !SvOK(little))) { |
| 73ee8be2 NC |
3257 | /* index && SvOK() is a hack. fbm_instr() calls SvPV_const, which will |
| 3258 | warn on undef, and we've already triggered a warning with the | |
| 3259 | SvPV_const some lines above. We can't remove that, as we need to | |
| 3260 | call some SvPV to trigger overloading early and find out if the | |
| 3261 | string is UTF-8. | |
| 3262 | This is all getting to messy. The API isn't quite clean enough, | |
| 3263 | because data access has side effects. | |
| 3264 | */ | |
| 3265 | little = sv_2mortal(newSVpvn(little_p, llen)); | |
| 3266 | if (little_utf8) | |
| 3267 | SvUTF8_on(little); | |
| 3268 | little_p = SvPVX(little); | |
| 3269 | } | |
| e609e586 | 3270 | |
| 79072805 | 3271 | if (MAXARG < 3) |
| 2723d216 | 3272 | offset = is_index ? 0 : biglen; |
| a0ed51b3 | 3273 | else { |
| ad66a58c | 3274 | if (big_utf8 && offset > 0) |
| a0ed51b3 | 3275 | sv_pos_u2b(big, &offset, 0); |
| 73ee8be2 NC |
3276 | if (!is_index) |
| 3277 | offset += llen; | |
| a0ed51b3 | 3278 | } |
| 79072805 LW |
3279 | if (offset < 0) |
| 3280 | offset = 0; | |
| ad66a58c NC |
3281 | else if (offset > (I32)biglen) |
| 3282 | offset = biglen; | |
| 73ee8be2 NC |
3283 | if (!(little_p = is_index |
| 3284 | ? fbm_instr((unsigned char*)big_p + offset, | |
| 3285 | (unsigned char*)big_p + biglen, little, 0) | |
| 3286 | : rninstr(big_p, big_p + offset, | |
| 3287 | little_p, little_p + llen))) | |
| a0ed51b3 | 3288 | retval = -1; |
| ad66a58c | 3289 | else { |
| 73ee8be2 | 3290 | retval = little_p - big_p; |
| ad66a58c NC |
3291 | if (retval > 0 && big_utf8) |
| 3292 | sv_pos_b2u(big, &retval); | |
| 3293 | } | |
| e609e586 NC |
3294 | if (temp) |
| 3295 | SvREFCNT_dec(temp); | |
| 2723d216 | 3296 | fail: |
| a0ed51b3 | 3297 | PUSHi(retval + arybase); |
| 79072805 LW |
3298 | RETURN; |
| 3299 | } | |
| 3300 | ||
| 3301 | PP(pp_sprintf) | |
| 3302 | { | |
| 97aff369 | 3303 | dVAR; dSP; dMARK; dORIGMARK; dTARGET; |
| 79072805 | 3304 | do_sprintf(TARG, SP-MARK, MARK+1); |
| bbce6d69 | 3305 | TAINT_IF(SvTAINTED(TARG)); |
| 79072805 LW |
3306 | SP = ORIGMARK; |
| 3307 | PUSHTARG; | |
| 3308 | RETURN; | |
| 3309 | } | |
| 3310 | ||
| 79072805 LW |
3311 | PP(pp_ord) |
| 3312 | { | |
| 97aff369 | 3313 | dVAR; dSP; dTARGET; |
| 1eced8f8 | 3314 | |
| 7df053ec | 3315 | SV *argsv = POPs; |
| ba210ebe | 3316 | STRLEN len; |
| 349d4f2f | 3317 | const U8 *s = (U8*)SvPV_const(argsv, len); |
| 121910a4 | 3318 | |
| 799ef3cb | 3319 | if (PL_encoding && SvPOK(argsv) && !DO_UTF8(argsv)) { |
| 1eced8f8 | 3320 | SV * const tmpsv = sv_2mortal(newSVsv(argsv)); |
| 799ef3cb | 3321 | s = (U8*)sv_recode_to_utf8(tmpsv, PL_encoding); |
| 121910a4 JH |
3322 | argsv = tmpsv; |
| 3323 | } | |
| 79072805 | 3324 | |
| 872c91ae | 3325 | XPUSHu(DO_UTF8(argsv) ? |
| 89ebb4a3 | 3326 | utf8n_to_uvchr(s, UTF8_MAXBYTES, 0, UTF8_ALLOW_ANYUV) : |
| 872c91ae | 3327 | (*s & 0xff)); |
| 68795e93 | 3328 | |
| 79072805 LW |
3329 | RETURN; |
| 3330 | } | |
| 3331 | ||
| 463ee0b2 LW |
3332 | PP(pp_chr) |
| 3333 | { | |
| 97aff369 | 3334 | dVAR; dSP; dTARGET; |
| 463ee0b2 | 3335 | char *tmps; |
| 8a064bd6 JH |
3336 | UV value; |
| 3337 | ||
| 3338 | if (((SvIOK_notUV(TOPs) && SvIV(TOPs) < 0) | |
| 3339 | || | |
| 3340 | (SvNOK(TOPs) && SvNV(TOPs) < 0.0))) { | |
| 3341 | if (IN_BYTES) { | |
| 3342 | value = POPu; /* chr(-1) eq chr(0xff), etc. */ | |
| 3343 | } else { | |
| 3344 | (void) POPs; /* Ignore the argument value. */ | |
| 3345 | value = UNICODE_REPLACEMENT; | |
| 3346 | } | |
| 3347 | } else { | |
| 3348 | value = POPu; | |
| 3349 | } | |
| 463ee0b2 | 3350 | |
| 862a34c6 | 3351 | SvUPGRADE(TARG,SVt_PV); |
| a0ed51b3 | 3352 | |
| 0064a8a9 | 3353 | if (value > 255 && !IN_BYTES) { |
| eb160463 | 3354 | SvGROW(TARG, (STRLEN)UNISKIP(value)+1); |
| 62961d2e | 3355 | tmps = (char*)uvchr_to_utf8_flags((U8*)SvPVX(TARG), value, 0); |
| 349d4f2f | 3356 | SvCUR_set(TARG, tmps - SvPVX_const(TARG)); |
| a0ed51b3 LW |
3357 | *tmps = '\0'; |
| 3358 | (void)SvPOK_only(TARG); | |
| aa6ffa16 | 3359 | SvUTF8_on(TARG); |
| a0ed51b3 LW |
3360 | XPUSHs(TARG); |
| 3361 | RETURN; | |
| 3362 | } | |
| 3363 | ||
| 748a9306 | 3364 | SvGROW(TARG,2); |
| 463ee0b2 LW |
3365 | SvCUR_set(TARG, 1); |
| 3366 | tmps = SvPVX(TARG); | |
| eb160463 | 3367 | *tmps++ = (char)value; |
| 748a9306 | 3368 | *tmps = '\0'; |
| a0d0e21e | 3369 | (void)SvPOK_only(TARG); |
| 88632417 | 3370 | if (PL_encoding && !IN_BYTES) { |
| 799ef3cb | 3371 | sv_recode_to_utf8(TARG, PL_encoding); |
| 88632417 JH |
3372 | tmps = SvPVX(TARG); |
| 3373 | if (SvCUR(TARG) == 0 || !is_utf8_string((U8*)tmps, SvCUR(TARG)) || | |
| 3374 | memEQ(tmps, "\xef\xbf\xbd\0", 4)) { | |
| d5a15ac2 JH |
3375 | SvGROW(TARG, 3); |
| 3376 | tmps = SvPVX(TARG); | |
| 88632417 JH |
3377 | SvCUR_set(TARG, 2); |
| 3378 | *tmps++ = (U8)UTF8_EIGHT_BIT_HI(value); | |
| 3379 | *tmps++ = (U8)UTF8_EIGHT_BIT_LO(value); | |
| 3380 | *tmps = '\0'; | |
| 3381 | SvUTF8_on(TARG); | |
| 3382 | } | |
| 3383 | } | |
| 463ee0b2 LW |
3384 | XPUSHs(TARG); |
| 3385 | RETURN; | |
| 3386 | } | |
| 3387 | ||
| 79072805 LW |
3388 | PP(pp_crypt) |
| 3389 | { | |
| 79072805 | 3390 | #ifdef HAS_CRYPT |
| 97aff369 | 3391 | dVAR; dSP; dTARGET; |
| 5f74f29c | 3392 | dPOPTOPssrl; |
| 85c16d83 | 3393 | STRLEN len; |
| 10516c54 | 3394 | const char *tmps = SvPV_const(left, len); |
| 2bc69dc4 | 3395 | |
| 85c16d83 | 3396 | if (DO_UTF8(left)) { |
| 2bc69dc4 | 3397 | /* If Unicode, try to downgrade. |
| f2791508 JH |
3398 | * If not possible, croak. |
| 3399 | * Yes, we made this up. */ | |
| 1b6737cc | 3400 | SV* const tsv = sv_2mortal(newSVsv(left)); |
| 2bc69dc4 | 3401 | |
| f2791508 | 3402 | SvUTF8_on(tsv); |
| 2bc69dc4 | 3403 | sv_utf8_downgrade(tsv, FALSE); |
| 349d4f2f | 3404 | tmps = SvPV_const(tsv, len); |
| 85c16d83 | 3405 | } |
| 05404ffe JH |
3406 | # ifdef USE_ITHREADS |
| 3407 | # ifdef HAS_CRYPT_R | |
| 3408 | if (!PL_reentrant_buffer->_crypt_struct_buffer) { | |
| 3409 | /* This should be threadsafe because in ithreads there is only | |
| 3410 | * one thread per interpreter. If this would not be true, | |
| 3411 | * we would need a mutex to protect this malloc. */ | |
| 3412 | PL_reentrant_buffer->_crypt_struct_buffer = | |
| 3413 | (struct crypt_data *)safemalloc(sizeof(struct crypt_data)); | |
| 3414 | #if defined(__GLIBC__) || defined(__EMX__) | |
| 3415 | if (PL_reentrant_buffer->_crypt_struct_buffer) { | |
| 3416 | PL_reentrant_buffer->_crypt_struct_buffer->initialized = 0; | |
| 3417 | /* work around glibc-2.2.5 bug */ | |
| 3418 | PL_reentrant_buffer->_crypt_struct_buffer->current_saltbits = 0; | |
| 3419 | } | |
| 05404ffe | 3420 | #endif |
| 6ab58e4d | 3421 | } |
| 05404ffe JH |
3422 | # endif /* HAS_CRYPT_R */ |
| 3423 | # endif /* USE_ITHREADS */ | |
| 5f74f29c | 3424 | # ifdef FCRYPT |
| 83003860 | 3425 | sv_setpv(TARG, fcrypt(tmps, SvPV_nolen_const(right))); |
| 5f74f29c | 3426 | # else |
| 83003860 | 3427 | sv_setpv(TARG, PerlProc_crypt(tmps, SvPV_nolen_const(right))); |
| 5f74f29c | 3428 | # endif |
| 4808266b JH |
3429 | SETs(TARG); |
| 3430 | RETURN; | |
| 79072805 | 3431 | #else |
| b13b2135 | 3432 | DIE(aTHX_ |
| 79072805 LW |
3433 | "The crypt() function is unimplemented due to excessive paranoia."); |
| 3434 | #endif | |
| 79072805 LW |
3435 | } |
| 3436 | ||
| 3437 | PP(pp_ucfirst) | |
| 3438 | { | |
| 97aff369 | 3439 | dVAR; |
| 39644a26 | 3440 | dSP; |
| d54190f6 | 3441 | SV *source = TOPs; |
| a0ed51b3 | 3442 | STRLEN slen; |
| d54190f6 NC |
3443 | STRLEN need; |
| 3444 | SV *dest; | |
| 3445 | bool inplace = TRUE; | |
| 3446 | bool doing_utf8; | |
| 12e9c124 | 3447 | const int op_type = PL_op->op_type; |
| d54190f6 NC |
3448 | const U8 *s; |
| 3449 | U8 *d; | |
| 3450 | U8 tmpbuf[UTF8_MAXBYTES_CASE+1]; | |
| 3451 | STRLEN ulen; | |
| 3452 | STRLEN tculen; | |
| 3453 | ||
| 3454 | SvGETMAGIC(source); | |
| 3455 | if (SvOK(source)) { | |
| 3456 | s = (const U8*)SvPV_nomg_const(source, slen); | |
| 3457 | } else { | |
| 1eced8f8 | 3458 | s = (const U8*)""; |
| d54190f6 NC |
3459 | slen = 0; |
| 3460 | } | |
| a0ed51b3 | 3461 | |
| d54190f6 NC |
3462 | if (slen && DO_UTF8(source) && UTF8_IS_START(*s)) { |
| 3463 | doing_utf8 = TRUE; | |
| 44bc797b | 3464 | utf8_to_uvchr(s, &ulen); |
| 12e9c124 NC |
3465 | if (op_type == OP_UCFIRST) { |
| 3466 | toTITLE_utf8(s, tmpbuf, &tculen); | |
| 3467 | } else { | |
| 3468 | toLOWER_utf8(s, tmpbuf, &tculen); | |
| 3469 | } | |
| d54190f6 | 3470 | /* If the two differ, we definately cannot do inplace. */ |
| 1eced8f8 | 3471 | inplace = (ulen == tculen); |
| d54190f6 NC |
3472 | need = slen + 1 - ulen + tculen; |
| 3473 | } else { | |
| 3474 | doing_utf8 = FALSE; | |
| 3475 | need = slen + 1; | |
| 3476 | } | |
| 3477 | ||
| 3478 | if (SvPADTMP(source) && !SvREADONLY(source) && inplace) { | |
| 3479 | /* We can convert in place. */ | |
| 3480 | ||
| 3481 | dest = source; | |
| 3482 | s = d = (U8*)SvPV_force_nomg(source, slen); | |
| 3483 | } else { | |
| 3484 | dTARGET; | |
| 3485 | ||
| 3486 | dest = TARG; | |
| 3487 | ||
| 3488 | SvUPGRADE(dest, SVt_PV); | |
| 3b416f41 | 3489 | d = (U8*)SvGROW(dest, need); |
| d54190f6 NC |
3490 | (void)SvPOK_only(dest); |
| 3491 | ||
| 3492 | SETs(dest); | |
| 3493 | ||
| 3494 | inplace = FALSE; | |
| 3495 | } | |
| 44bc797b | 3496 | |
| d54190f6 NC |
3497 | if (doing_utf8) { |
| 3498 | if(!inplace) { | |
| 3a2263fe RGS |
3499 | /* slen is the byte length of the whole SV. |
| 3500 | * ulen is the byte length of the original Unicode character | |
| 3501 | * stored as UTF-8 at s. | |
| 12e9c124 NC |
3502 | * tculen is the byte length of the freshly titlecased (or |
| 3503 | * lowercased) Unicode character stored as UTF-8 at tmpbuf. | |
| 3504 | * We first set the result to be the titlecased (/lowercased) | |
| 3505 | * character, and then append the rest of the SV data. */ | |
| d54190f6 | 3506 | sv_setpvn(dest, (char*)tmpbuf, tculen); |
| 3a2263fe | 3507 | if (slen > ulen) |
| d54190f6 NC |
3508 | sv_catpvn(dest, (char*)(s + ulen), slen - ulen); |
| 3509 | SvUTF8_on(dest); | |
| a0ed51b3 LW |
3510 | } |
| 3511 | else { | |
| d54190f6 NC |
3512 | Copy(tmpbuf, d, tculen, U8); |
| 3513 | SvCUR_set(dest, need - 1); | |
| a0ed51b3 | 3514 | } |
| a0ed51b3 | 3515 | } |
| 626727d5 | 3516 | else { |
| d54190f6 | 3517 | if (*s) { |
| 2de3dbcc | 3518 | if (IN_LOCALE_RUNTIME) { |
| 31351b04 | 3519 | TAINT; |
| d54190f6 NC |
3520 | SvTAINTED_on(dest); |
| 3521 | *d = (op_type == OP_UCFIRST) | |
| 3522 | ? toUPPER_LC(*s) : toLOWER_LC(*s); | |
| 31351b04 JS |
3523 | } |
| 3524 | else | |
| d54190f6 NC |
3525 | *d = (op_type == OP_UCFIRST) ? toUPPER(*s) : toLOWER(*s); |
| 3526 | } else { | |
| 3527 | /* See bug #39028 */ | |
| 3528 | *d = *s; | |
| 3529 | } | |
| 3530 | ||
| 3531 | if (SvUTF8(source)) | |
| 3532 | SvUTF8_on(dest); | |
| 3533 | ||
| 3534 | if (!inplace) { | |
| 3535 | /* This will copy the trailing NUL */ | |
| 3536 | Copy(s + 1, d + 1, slen, U8); | |
| 3537 | SvCUR_set(dest, need - 1); | |
| bbce6d69 | 3538 | } |
| bbce6d69 | 3539 | } |
| d54190f6 | 3540 | SvSETMAGIC(dest); |
| 79072805 LW |
3541 | RETURN; |
| 3542 | } | |
| 3543 | ||
| 67306194 NC |
3544 | /* There's so much setup/teardown code common between uc and lc, I wonder if |
| 3545 | it would be worth merging the two, and just having a switch outside each | |
| 3546 | of the three tight loops. */ | |
| 79072805 LW |
3547 | PP(pp_uc) |
| 3548 | { | |
| 97aff369 | 3549 | dVAR; |
| 39644a26 | 3550 | dSP; |
| 67306194 | 3551 | SV *source = TOPs; |
| 463ee0b2 | 3552 | STRLEN len; |
| 67306194 NC |
3553 | STRLEN min; |
| 3554 | SV *dest; | |
| 3555 | const U8 *s; | |
| 3556 | U8 *d; | |
| 79072805 | 3557 | |
| 67306194 NC |
3558 | SvGETMAGIC(source); |
| 3559 | ||
| 3560 | if (SvPADTMP(source) && !SvREADONLY(source) && !SvAMAGIC(source) | |
| 3561 | && !DO_UTF8(source)) { | |
| 3562 | /* We can convert in place. */ | |
| 3563 | ||
| 3564 | dest = source; | |
| 3565 | s = d = (U8*)SvPV_force_nomg(source, len); | |
| 3566 | min = len + 1; | |
| 3567 | } else { | |
| a0ed51b3 | 3568 | dTARGET; |
| a0ed51b3 | 3569 | |
| 67306194 | 3570 | dest = TARG; |
| 128c9517 | 3571 | |
| 67306194 NC |
3572 | /* The old implementation would copy source into TARG at this point. |
| 3573 | This had the side effect that if source was undef, TARG was now | |
| 3574 | an undefined SV with PADTMP set, and they don't warn inside | |
| 3575 | sv_2pv_flags(). However, we're now getting the PV direct from | |
| 3576 | source, which doesn't have PADTMP set, so it would warn. Hence the | |
| 3577 | little games. */ | |
| 3578 | ||
| 3579 | if (SvOK(source)) { | |
| 3580 | s = (const U8*)SvPV_nomg_const(source, len); | |
| 3581 | } else { | |
| 1eced8f8 | 3582 | s = (const U8*)""; |
| 67306194 | 3583 | len = 0; |
| a0ed51b3 | 3584 | } |
| 67306194 NC |
3585 | min = len + 1; |
| 3586 | ||
| 3587 | SvUPGRADE(dest, SVt_PV); | |
| 3b416f41 | 3588 | d = (U8*)SvGROW(dest, min); |
| 67306194 NC |
3589 | (void)SvPOK_only(dest); |
| 3590 | ||
| 3591 | SETs(dest); | |
| a0ed51b3 | 3592 | } |
| 31351b04 | 3593 | |
| 67306194 NC |
3594 | /* Overloaded values may have toggled the UTF-8 flag on source, so we need |
| 3595 | to check DO_UTF8 again here. */ | |
| 3596 | ||
| 3597 | if (DO_UTF8(source)) { | |
| 3598 | const U8 *const send = s + len; | |
| 3599 | U8 tmpbuf[UTF8_MAXBYTES+1]; | |
| 3600 | ||
| 3601 | while (s < send) { | |
| 3602 | const STRLEN u = UTF8SKIP(s); | |
| 3603 | STRLEN ulen; | |
| 3604 | ||
| 3605 | toUPPER_utf8(s, tmpbuf, &ulen); | |
| 3606 | if (ulen > u && (SvLEN(dest) < (min += ulen - u))) { | |
| 3607 | /* If the eventually required minimum size outgrows | |
| 3608 | * the available space, we need to grow. */ | |
| 3609 | const UV o = d - (U8*)SvPVX_const(dest); | |
| 3610 | ||
| 3611 | /* If someone uppercases one million U+03B0s we SvGROW() one | |
| 3612 | * million times. Or we could try guessing how much to | |
| 3613 | allocate without allocating too much. Such is life. */ | |
| 3614 | SvGROW(dest, min); | |
| 3615 | d = (U8*)SvPVX(dest) + o; | |
| 3616 | } | |
| 3617 | Copy(tmpbuf, d, ulen, U8); | |
| 3618 | d += ulen; | |
| 3619 | s += u; | |
| 3620 | } | |
| 3621 | SvUTF8_on(dest); | |
| 3622 | *d = '\0'; | |
| 3623 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); | |
| 3624 | } else { | |
| 3625 | if (len) { | |
| 3626 | const U8 *const send = s + len; | |
| 2de3dbcc | 3627 | if (IN_LOCALE_RUNTIME) { |
| 31351b04 | 3628 | TAINT; |
| 67306194 NC |
3629 | SvTAINTED_on(dest); |
| 3630 | for (; s < send; d++, s++) | |
| 3631 | *d = toUPPER_LC(*s); | |
| 31351b04 JS |
3632 | } |
| 3633 | else { | |
| 67306194 NC |
3634 | for (; s < send; d++, s++) |
| 3635 | *d = toUPPER(*s); | |
| 31351b04 | 3636 | } |
| bbce6d69 | 3637 | } |
| 67306194 NC |
3638 | if (source != dest) { |
| 3639 | *d = '\0'; | |
| 3640 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); | |
| 3641 | } | |
| 79072805 | 3642 | } |
| 67306194 | 3643 | SvSETMAGIC(dest); |
| 79072805 LW |
3644 | RETURN; |
| 3645 | } | |
| 3646 | ||
| 3647 | PP(pp_lc) | |
| 3648 | { | |
| 97aff369 | 3649 | dVAR; |
| 39644a26 | 3650 | dSP; |
| ec9af7d4 | 3651 | SV *source = TOPs; |
| 463ee0b2 | 3652 | STRLEN len; |
| ec9af7d4 NC |
3653 | STRLEN min; |
| 3654 | SV *dest; | |
| 3655 | const U8 *s; | |
| 3656 | U8 *d; | |
| 79072805 | 3657 | |
| ec9af7d4 NC |
3658 | SvGETMAGIC(source); |
| 3659 | ||
| 3660 | if (SvPADTMP(source) && !SvREADONLY(source) && !SvAMAGIC(source) | |
| 3661 | && !DO_UTF8(source)) { | |
| 3662 | /* We can convert in place. */ | |
| 3663 | ||
| 3664 | dest = source; | |
| 3665 | s = d = (U8*)SvPV_force_nomg(source, len); | |
| 3666 | min = len + 1; | |
| 3667 | } else { | |
| a0ed51b3 | 3668 | dTARGET; |
| a0ed51b3 | 3669 | |
| ec9af7d4 NC |
3670 | dest = TARG; |
| 3671 | ||
| 3672 | /* The old implementation would copy source into TARG at this point. | |
| 3673 | This had the side effect that if source was undef, TARG was now | |
| 3674 | an undefined SV with PADTMP set, and they don't warn inside | |
| 3675 | sv_2pv_flags(). However, we're now getting the PV direct from | |
| 3676 | source, which doesn't have PADTMP set, so it would warn. Hence the | |
| 3677 | little games. */ | |
| 3678 | ||
| 3679 | if (SvOK(source)) { | |
| 3680 | s = (const U8*)SvPV_nomg_const(source, len); | |
| 3681 | } else { | |
| 1eced8f8 | 3682 | s = (const U8*)""; |
| ec9af7d4 | 3683 | len = 0; |
| a0ed51b3 | 3684 | } |
| ec9af7d4 | 3685 | min = len + 1; |
| 128c9517 | 3686 | |
| ec9af7d4 | 3687 | SvUPGRADE(dest, SVt_PV); |
| 3b416f41 | 3688 | d = (U8*)SvGROW(dest, min); |
| ec9af7d4 NC |
3689 | (void)SvPOK_only(dest); |
| 3690 |