https://perl5.git.perl.org / perl5.git / blame
| Commit | Line | Data |
|---|---|---|
| a0d0e21e | 1 | /* pp.c |
| 79072805 | 2 | * |
| 4bb101f2 | 3 | * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
| fdf8c088 | 4 | * 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007 by Larry Wall and others |
| 79072805 | 5 | * |
| a0d0e21e LW |
6 | * You may distribute under the terms of either the GNU General Public |
| 7 | * License or the Artistic License, as specified in the README file. | |
| 79072805 | 8 | * |
| a0d0e21e LW |
9 | */ |
| 10 | ||
| 11 | /* | |
| 12 | * "It's a big house this, and very peculiar. Always a bit more to discover, | |
| 13 | * and no knowing what you'll find around a corner. And Elves, sir!" --Samwise | |
| 14 | */ | |
| 79072805 | 15 | |
| 166f8a29 DM |
16 | /* This file contains general pp ("push/pop") functions that execute the |
| 17 | * opcodes that make up a perl program. A typical pp function expects to | |
| 18 | * find its arguments on the stack, and usually pushes its results onto | |
| 19 | * the stack, hence the 'pp' terminology. Each OP structure contains | |
| 20 | * a pointer to the relevant pp_foo() function. | |
| 21 | */ | |
| 22 | ||
| 79072805 | 23 | #include "EXTERN.h" |
| 864dbfa3 | 24 | #define PERL_IN_PP_C |
| 79072805 | 25 | #include "perl.h" |
| 77bc9082 | 26 | #include "keywords.h" |
| 79072805 | 27 | |
| a4af207c JH |
28 | #include "reentr.h" |
| 29 | ||
| dfe9444c AD |
30 | /* XXX I can't imagine anyone who doesn't have this actually _needs_ |
| 31 | it, since pid_t is an integral type. | |
| 32 | --AD 2/20/1998 | |
| 33 | */ | |
| 34 | #ifdef NEED_GETPID_PROTO | |
| 35 | extern Pid_t getpid (void); | |
| 8ac85365 NIS |
36 | #endif |
| 37 | ||
| 0630166f SP |
38 | /* |
| 39 | * Some BSDs and Cygwin default to POSIX math instead of IEEE. | |
| 40 | * This switches them over to IEEE. | |
| 41 | */ | |
| 42 | #if defined(LIBM_LIB_VERSION) | |
| 43 | _LIB_VERSION_TYPE _LIB_VERSION = _IEEE_; | |
| 44 | #endif | |
| 45 | ||
| 13017935 SM |
46 | /* variations on pp_null */ |
| 47 | ||
| 93a17b20 LW |
48 | PP(pp_stub) |
| 49 | { | |
| 97aff369 | 50 | dVAR; |
| 39644a26 | 51 | dSP; |
| 54310121 | 52 | if (GIMME_V == G_SCALAR) |
| 3280af22 | 53 | XPUSHs(&PL_sv_undef); |
| 93a17b20 LW |
54 | RETURN; |
| 55 | } | |
| 56 | ||
| 79072805 LW |
57 | /* Pushy stuff. */ |
| 58 | ||
| 93a17b20 LW |
59 | PP(pp_padav) |
| 60 | { | |
| 97aff369 | 61 | dVAR; dSP; dTARGET; |
| 13017935 | 62 | I32 gimme; |
| 533c011a | 63 | if (PL_op->op_private & OPpLVAL_INTRO) |
| a5911867 RGS |
64 | if (!(PL_op->op_private & OPpPAD_STATE)) |
| 65 | SAVECLEARSV(PAD_SVl(PL_op->op_targ)); | |
| 85e6fe83 | 66 | EXTEND(SP, 1); |
| 533c011a | 67 | if (PL_op->op_flags & OPf_REF) { |
| 85e6fe83 | 68 | PUSHs(TARG); |
| 93a17b20 | 69 | RETURN; |
| 78f9721b SM |
70 | } else if (LVRET) { |
| 71 | if (GIMME == G_SCALAR) | |
| 72 | Perl_croak(aTHX_ "Can't return array to lvalue scalar context"); | |
| 73 | PUSHs(TARG); | |
| 74 | RETURN; | |
| 85e6fe83 | 75 | } |
| 13017935 SM |
76 | gimme = GIMME_V; |
| 77 | if (gimme == G_ARRAY) { | |
| f54cb97a | 78 | const I32 maxarg = AvFILL((AV*)TARG) + 1; |
| 85e6fe83 | 79 | EXTEND(SP, maxarg); |
| 93965878 NIS |
80 | if (SvMAGICAL(TARG)) { |
| 81 | U32 i; | |
| eb160463 | 82 | for (i=0; i < (U32)maxarg; i++) { |
| 0bd48802 | 83 | SV * const * const svp = av_fetch((AV*)TARG, i, FALSE); |
| 3280af22 | 84 | SP[i+1] = (svp) ? *svp : &PL_sv_undef; |
| 93965878 NIS |
85 | } |
| 86 | } | |
| 87 | else { | |
| 88 | Copy(AvARRAY((AV*)TARG), SP+1, maxarg, SV*); | |
| 89 | } | |
| 85e6fe83 LW |
90 | SP += maxarg; |
| 91 | } | |
| 13017935 | 92 | else if (gimme == G_SCALAR) { |
| 1b6737cc | 93 | SV* const sv = sv_newmortal(); |
| f54cb97a | 94 | const I32 maxarg = AvFILL((AV*)TARG) + 1; |
| 85e6fe83 LW |
95 | sv_setiv(sv, maxarg); |
| 96 | PUSHs(sv); | |
| 97 | } | |
| 98 | RETURN; | |
| 93a17b20 LW |
99 | } |
| 100 | ||
| 101 | PP(pp_padhv) | |
| 102 | { | |
| 97aff369 | 103 | dVAR; dSP; dTARGET; |
| 54310121 | 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"); |
| 42d0e0b7 | 242 | default: NOOP; |
| 79072805 LW |
243 | } |
| 244 | } | |
| 245 | else { | |
| 82d03984 | 246 | gv = (GV*)sv; |
| 748a9306 | 247 | |
| 463ee0b2 | 248 | if (SvTYPE(gv) != SVt_PVGV) { |
| a0d0e21e LW |
249 | if (SvGMAGICAL(sv)) { |
| 250 | mg_get(sv); | |
| 251 | if (SvROK(sv)) | |
| 252 | goto wasref; | |
| 253 | } | |
| 2e6a7e23 RGS |
254 | if (PL_op->op_private & HINT_STRICT_REFS) { |
| 255 | if (SvOK(sv)) | |
| 256 | DIE(aTHX_ PL_no_symref_sv, sv, "a SCALAR"); | |
| 257 | else | |
| 258 | DIE(aTHX_ PL_no_usym, "a SCALAR"); | |
| 259 | } | |
| a0d0e21e | 260 | if (!SvOK(sv)) { |
| 2e6a7e23 | 261 | if (PL_op->op_flags & OPf_REF) |
| cea2e8a9 | 262 | DIE(aTHX_ PL_no_usym, "a SCALAR"); |
| 599cee73 | 263 | if (ckWARN(WARN_UNINITIALIZED)) |
| 29489e7c | 264 | report_uninit(sv); |
| a0d0e21e LW |
265 | RETSETUNDEF; |
| 266 | } | |
| 35cd451c GS |
267 | if ((PL_op->op_flags & OPf_SPECIAL) && |
| 268 | !(PL_op->op_flags & OPf_MOD)) | |
| 269 | { | |
| f776e3cd | 270 | gv = (GV*)gv_fetchsv(sv, 0, SVt_PV); |
| c9d5ac95 | 271 | if (!gv |
| 7a5fd60d | 272 | && (!is_gv_magical_sv(sv, 0) |
| f776e3cd | 273 | || !(gv = (GV*)gv_fetchsv(sv, GV_ADD, SVt_PV)))) |
| c9d5ac95 | 274 | { |
| 35cd451c | 275 | RETSETUNDEF; |
| c9d5ac95 | 276 | } |
| 35cd451c GS |
277 | } |
| 278 | else { | |
| f776e3cd | 279 | gv = (GV*)gv_fetchsv(sv, GV_ADD, SVt_PV); |
| 35cd451c | 280 | } |
| 463ee0b2 | 281 | } |
| 29c711a3 | 282 | sv = GvSVn(gv); |
| a0d0e21e | 283 | } |
| 533c011a | 284 | if (PL_op->op_flags & OPf_MOD) { |
| 82d03984 RGS |
285 | if (PL_op->op_private & OPpLVAL_INTRO) { |
| 286 | if (cUNOP->op_first->op_type == OP_NULL) | |
| 287 | sv = save_scalar((GV*)TOPs); | |
| 288 | else if (gv) | |
| 289 | sv = save_scalar(gv); | |
| 290 | else | |
| 291 | Perl_croak(aTHX_ PL_no_localize_ref); | |
| 292 | } | |
| 533c011a NIS |
293 | else if (PL_op->op_private & OPpDEREF) |
| 294 | vivify_ref(sv, PL_op->op_private & OPpDEREF); | |
| 79072805 | 295 | } |
| a0d0e21e | 296 | SETs(sv); |
| 79072805 LW |
297 | RETURN; |
| 298 | } | |
| 299 | ||
| 300 | PP(pp_av2arylen) | |
| 301 | { | |
| 97aff369 | 302 | dVAR; dSP; |
| 1b6737cc AL |
303 | AV * const av = (AV*)TOPs; |
| 304 | SV ** const sv = Perl_av_arylen_p(aTHX_ (AV*)av); | |
| a3874608 | 305 | if (!*sv) { |
| 561b68a9 | 306 | *sv = newSV(0); |
| a3874608 | 307 | sv_upgrade(*sv, SVt_PVMG); |
| c445ea15 | 308 | sv_magic(*sv, (SV*)av, PERL_MAGIC_arylen, NULL, 0); |
| 79072805 | 309 | } |
| a3874608 | 310 | SETs(*sv); |
| 79072805 LW |
311 | RETURN; |
| 312 | } | |
| 313 | ||
| a0d0e21e LW |
314 | PP(pp_pos) |
| 315 | { | |
| 97aff369 | 316 | dVAR; dSP; dTARGET; dPOPss; |
| 8ec5e241 | 317 | |
| 78f9721b | 318 | if (PL_op->op_flags & OPf_MOD || LVRET) { |
| 5f05dabc | 319 | if (SvTYPE(TARG) < SVt_PVLV) { |
| 320 | sv_upgrade(TARG, SVt_PVLV); | |
| c445ea15 | 321 | sv_magic(TARG, NULL, PERL_MAGIC_pos, NULL, 0); |
| 5f05dabc | 322 | } |
| 323 | ||
| 324 | LvTYPE(TARG) = '.'; | |
| 6ff81951 GS |
325 | if (LvTARG(TARG) != sv) { |
| 326 | if (LvTARG(TARG)) | |
| 327 | SvREFCNT_dec(LvTARG(TARG)); | |
| b37c2d43 | 328 | LvTARG(TARG) = SvREFCNT_inc_simple(sv); |
| 6ff81951 | 329 | } |
| a0d0e21e LW |
330 | PUSHs(TARG); /* no SvSETMAGIC */ |
| 331 | RETURN; | |
| 332 | } | |
| 333 | else { | |
| a0d0e21e | 334 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) { |
| 1b6737cc | 335 | const MAGIC * const mg = mg_find(sv, PERL_MAGIC_regex_global); |
| 565764a8 | 336 | if (mg && mg->mg_len >= 0) { |
| a0ed51b3 | 337 | I32 i = mg->mg_len; |
| 7e2040f0 | 338 | if (DO_UTF8(sv)) |
| a0ed51b3 | 339 | sv_pos_b2u(sv, &i); |
| fc15ae8f | 340 | PUSHi(i + CopARYBASE_get(PL_curcop)); |
| a0d0e21e LW |
341 | RETURN; |
| 342 | } | |
| 343 | } | |
| 344 | RETPUSHUNDEF; | |
| 345 | } | |
| 346 | } | |
| 347 | ||
| 79072805 LW |
348 | PP(pp_rv2cv) |
| 349 | { | |
| 97aff369 | 350 | dVAR; dSP; |
| 79072805 | 351 | GV *gv; |
| 1eced8f8 | 352 | HV *stash_unused; |
| c445ea15 AL |
353 | const I32 flags = (PL_op->op_flags & OPf_SPECIAL) |
| 354 | ? 0 | |
| 355 | : ((PL_op->op_private & (OPpLVAL_INTRO|OPpMAY_RETURN_CONSTANT)) == OPpMAY_RETURN_CONSTANT) | |
| 356 | ? GV_ADD|GV_NOEXPAND | |
| 357 | : GV_ADD; | |
| 4633a7c4 LW |
358 | /* We usually try to add a non-existent subroutine in case of AUTOLOAD. */ |
| 359 | /* (But not in defined().) */ | |
| e26df76a | 360 | |
| 1eced8f8 | 361 | CV *cv = sv_2cv(TOPs, &stash_unused, &gv, flags); |
| 07055b4c CS |
362 | if (cv) { |
| 363 | if (CvCLONE(cv)) | |
| 364 | cv = (CV*)sv_2mortal((SV*)cv_clone(cv)); | |
| d32f2495 SC |
365 | if ((PL_op->op_private & OPpLVAL_INTRO)) { |
| 366 | if (gv && GvCV(gv) == cv && (gv = gv_autoload4(GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv), FALSE))) | |
| 367 | cv = GvCV(gv); | |
| 368 | if (!CvLVALUE(cv)) | |
| 369 | DIE(aTHX_ "Can't modify non-lvalue subroutine call"); | |
| 370 | } | |
| 07055b4c | 371 | } |
| e26df76a NC |
372 | else if ((flags == (GV_ADD|GV_NOEXPAND)) && gv && SvROK(gv)) { |
| 373 | cv = (CV*)gv; | |
| 374 | } | |
| 07055b4c | 375 | else |
| 3280af22 | 376 | cv = (CV*)&PL_sv_undef; |
| 79072805 LW |
377 | SETs((SV*)cv); |
| 378 | RETURN; | |
| 379 | } | |
| 380 | ||
| c07a80fd | 381 | PP(pp_prototype) |
| 382 | { | |
| 97aff369 | 383 | dVAR; dSP; |
| c07a80fd | 384 | CV *cv; |
| 385 | HV *stash; | |
| 386 | GV *gv; | |
| fabdb6c0 | 387 | SV *ret = &PL_sv_undef; |
| c07a80fd | 388 | |
| b6c543e3 | 389 | if (SvPOK(TOPs) && SvCUR(TOPs) >= 7) { |
| e3f73d4e | 390 | const char * s = SvPVX_const(TOPs); |
| b6c543e3 | 391 | if (strnEQ(s, "CORE::", 6)) { |
| 5458a98a | 392 | const int code = keyword(s + 6, SvCUR(TOPs) - 6, 1); |
| b6c543e3 IZ |
393 | if (code < 0) { /* Overridable. */ |
| 394 | #define MAX_ARGS_OP ((sizeof(I32) - 1) * 2) | |
| 59b085e1 | 395 | int i = 0, n = 0, seen_question = 0, defgv = 0; |
| b6c543e3 IZ |
396 | I32 oa; |
| 397 | char str[ MAX_ARGS_OP * 2 + 2 ]; /* One ';', one '\0' */ | |
| 398 | ||
| bdf1bb36 | 399 | if (code == -KEY_chop || code == -KEY_chomp |
| 5458a98a | 400 | || code == -KEY_exec || code == -KEY_system || code == -KEY_err) |
| 77bc9082 | 401 | goto set; |
| d116c547 RGS |
402 | if (code == -KEY_mkdir) { |
| 403 | ret = sv_2mortal(newSVpvs("_;$")); | |
| 404 | goto set; | |
| 405 | } | |
| e3f73d4e RGS |
406 | if (code == -KEY_readpipe) { |
| 407 | s = "CORE::backtick"; | |
| 408 | } | |
| b6c543e3 | 409 | while (i < MAXO) { /* The slow way. */ |
| 22c35a8c GS |
410 | if (strEQ(s + 6, PL_op_name[i]) |
| 411 | || strEQ(s + 6, PL_op_desc[i])) | |
| 412 | { | |
| b6c543e3 | 413 | goto found; |
| 22c35a8c | 414 | } |
| b6c543e3 IZ |
415 | i++; |
| 416 | } | |
| 417 | goto nonesuch; /* Should not happen... */ | |
| 418 | found: | |
| 59b085e1 | 419 | defgv = PL_opargs[i] & OA_DEFGV; |
| 22c35a8c | 420 | oa = PL_opargs[i] >> OASHIFT; |
| b6c543e3 | 421 | while (oa) { |
| 59b085e1 | 422 | if (oa & OA_OPTIONAL && !seen_question && !defgv) { |
| b6c543e3 IZ |
423 | seen_question = 1; |
| 424 | str[n++] = ';'; | |
| ef54e1a4 | 425 | } |
| b13b2135 | 426 | if ((oa & (OA_OPTIONAL - 1)) >= OA_AVREF |
| 6e97e420 SC |
427 | && (oa & (OA_OPTIONAL - 1)) <= OA_SCALARREF |
| 428 | /* But globs are already references (kinda) */ | |
| 429 | && (oa & (OA_OPTIONAL - 1)) != OA_FILEREF | |
| 430 | ) { | |
| b6c543e3 IZ |
431 | str[n++] = '\\'; |
| 432 | } | |
| b6c543e3 IZ |
433 | str[n++] = ("?$@@%&*$")[oa & (OA_OPTIONAL - 1)]; |
| 434 | oa = oa >> 4; | |
| 435 | } | |
| 59b085e1 RGS |
436 | if (defgv && str[n - 1] == '$') |
| 437 | str[n - 1] = '_'; | |
| b6c543e3 | 438 | str[n++] = '\0'; |
| 79cb57f6 | 439 | ret = sv_2mortal(newSVpvn(str, n - 1)); |
| ef54e1a4 JH |
440 | } |
| 441 | else if (code) /* Non-Overridable */ | |
| b6c543e3 IZ |
442 | goto set; |
| 443 | else { /* None such */ | |
| 444 | nonesuch: | |
| d470f89e | 445 | DIE(aTHX_ "Can't find an opnumber for \"%s\"", s+6); |
| b6c543e3 IZ |
446 | } |
| 447 | } | |
| 448 | } | |
| f2c0649b | 449 | cv = sv_2cv(TOPs, &stash, &gv, 0); |
| 5f05dabc | 450 | if (cv && SvPOK(cv)) |
| b15aece3 | 451 | ret = sv_2mortal(newSVpvn(SvPVX_const(cv), SvCUR(cv))); |
| b6c543e3 | 452 | set: |
| c07a80fd | 453 | SETs(ret); |
| 454 | RETURN; | |
| 455 | } | |
| 456 | ||
| a0d0e21e LW |
457 | PP(pp_anoncode) |
| 458 | { | |
| 97aff369 | 459 | dVAR; dSP; |
| dd2155a4 | 460 | CV* cv = (CV*)PAD_SV(PL_op->op_targ); |
| a5f75d66 | 461 | if (CvCLONE(cv)) |
| b355b4e0 | 462 | cv = (CV*)sv_2mortal((SV*)cv_clone(cv)); |
| 5f05dabc | 463 | EXTEND(SP,1); |
| 748a9306 | 464 | PUSHs((SV*)cv); |
| a0d0e21e LW |
465 | RETURN; |
| 466 | } | |
| 467 | ||
| 468 | PP(pp_srefgen) | |
| 79072805 | 469 | { |
| 97aff369 | 470 | dVAR; dSP; |
| 71be2cbc | 471 | *SP = refto(*SP); |
| 79072805 | 472 | RETURN; |
| 8ec5e241 | 473 | } |
| a0d0e21e LW |
474 | |
| 475 | PP(pp_refgen) | |
| 476 | { | |
| 97aff369 | 477 | dVAR; dSP; dMARK; |
| a0d0e21e | 478 | if (GIMME != G_ARRAY) { |
| 5f0b1d4e GS |
479 | if (++MARK <= SP) |
| 480 | *MARK = *SP; | |
| 481 | else | |
| 3280af22 | 482 | *MARK = &PL_sv_undef; |
| 5f0b1d4e GS |
483 | *MARK = refto(*MARK); |
| 484 | SP = MARK; | |
| 485 | RETURN; | |
| a0d0e21e | 486 | } |
| bbce6d69 | 487 | EXTEND_MORTAL(SP - MARK); |
| 71be2cbc | 488 | while (++MARK <= SP) |
| 489 | *MARK = refto(*MARK); | |
| a0d0e21e | 490 | RETURN; |
| 79072805 LW |
491 | } |
| 492 | ||
| 76e3520e | 493 | STATIC SV* |
| cea2e8a9 | 494 | S_refto(pTHX_ SV *sv) |
| 71be2cbc | 495 | { |
| 97aff369 | 496 | dVAR; |
| 71be2cbc | 497 | SV* rv; |
| 498 | ||
| 499 | if (SvTYPE(sv) == SVt_PVLV && LvTYPE(sv) == 'y') { | |
| 500 | if (LvTARGLEN(sv)) | |
| 68dc0745 | 501 | vivify_defelem(sv); |
| 502 | if (!(sv = LvTARG(sv))) | |
| 3280af22 | 503 | sv = &PL_sv_undef; |
| 0dd88869 | 504 | else |
| b37c2d43 | 505 | SvREFCNT_inc_void_NN(sv); |
| 71be2cbc | 506 | } |
| d8b46c1b GS |
507 | else if (SvTYPE(sv) == SVt_PVAV) { |
| 508 | if (!AvREAL((AV*)sv) && AvREIFY((AV*)sv)) | |
| 509 | av_reify((AV*)sv); | |
| 510 | SvTEMP_off(sv); | |
| b37c2d43 | 511 | SvREFCNT_inc_void_NN(sv); |
| d8b46c1b | 512 | } |
| f2933f5f DM |
513 | else if (SvPADTMP(sv) && !IS_PADGV(sv)) |
| 514 | sv = newSVsv(sv); | |
| 71be2cbc | 515 | else { |
| 516 | SvTEMP_off(sv); | |
| b37c2d43 | 517 | SvREFCNT_inc_void_NN(sv); |
| 71be2cbc | 518 | } |
| 519 | rv = sv_newmortal(); | |
| 520 | sv_upgrade(rv, SVt_RV); | |
| b162af07 | 521 | SvRV_set(rv, sv); |
| 71be2cbc | 522 | SvROK_on(rv); |
| 523 | return rv; | |
| 524 | } | |
| 525 | ||
| 79072805 LW |
526 | PP(pp_ref) |
| 527 | { | |
| 97aff369 | 528 | dVAR; dSP; dTARGET; |
| e1ec3a88 | 529 | const char *pv; |
| 1b6737cc | 530 | SV * const sv = POPs; |
| f12c7020 | 531 | |
| 5b295bef RD |
532 | if (sv) |
| 533 | SvGETMAGIC(sv); | |
| f12c7020 | 534 | |
| a0d0e21e | 535 | if (!sv || !SvROK(sv)) |
| 4633a7c4 | 536 | RETPUSHNO; |
| 79072805 | 537 | |
| 1b6737cc | 538 | pv = sv_reftype(SvRV(sv),TRUE); |
| 463ee0b2 | 539 | PUSHp(pv, strlen(pv)); |
| 79072805 LW |
540 | RETURN; |
| 541 | } | |
| 542 | ||
| 543 | PP(pp_bless) | |
| 544 | { | |
| 97aff369 | 545 | dVAR; dSP; |
| 463ee0b2 | 546 | HV *stash; |
| 79072805 | 547 | |
| 463ee0b2 | 548 | if (MAXARG == 1) |
| 11faa288 | 549 | stash = CopSTASH(PL_curcop); |
| 7b8d334a | 550 | else { |
| 1b6737cc | 551 | SV * const ssv = POPs; |
| 7b8d334a | 552 | STRLEN len; |
| e1ec3a88 | 553 | const char *ptr; |
| 81689caa | 554 | |
| 016a42f3 | 555 | if (ssv && !SvGMAGICAL(ssv) && !SvAMAGIC(ssv) && SvROK(ssv)) |
| 81689caa | 556 | Perl_croak(aTHX_ "Attempt to bless into a reference"); |
| 5c144d81 | 557 | ptr = SvPV_const(ssv,len); |
| 041457d9 | 558 | if (len == 0 && ckWARN(WARN_MISC)) |
| 9014280d | 559 | Perl_warner(aTHX_ packWARN(WARN_MISC), |
| 599cee73 | 560 | "Explicit blessing to '' (assuming package main)"); |
| 7b8d334a GS |
561 | stash = gv_stashpvn(ptr, len, TRUE); |
| 562 | } | |
| a0d0e21e | 563 | |
| 5d3fdfeb | 564 | (void)sv_bless(TOPs, stash); |
| 79072805 LW |
565 | RETURN; |
| 566 | } | |
| 567 | ||
| fb73857a | 568 | PP(pp_gelem) |
| 569 | { | |
| 97aff369 | 570 | dVAR; dSP; |
| b13b2135 | 571 | |
| 1b6737cc AL |
572 | SV *sv = POPs; |
| 573 | const char * const elem = SvPV_nolen_const(sv); | |
| 574 | GV * const gv = (GV*)POPs; | |
| c445ea15 | 575 | SV * tmpRef = NULL; |
| 1b6737cc | 576 | |
| c445ea15 | 577 | sv = NULL; |
| c4ba80c3 NC |
578 | if (elem) { |
| 579 | /* elem will always be NUL terminated. */ | |
| 1b6737cc | 580 | const char * const second_letter = elem + 1; |
| c4ba80c3 NC |
581 | switch (*elem) { |
| 582 | case 'A': | |
| 1b6737cc | 583 | if (strEQ(second_letter, "RRAY")) |
| c4ba80c3 NC |
584 | tmpRef = (SV*)GvAV(gv); |
| 585 | break; | |
| 586 | case 'C': | |
| 1b6737cc | 587 | if (strEQ(second_letter, "ODE")) |
| c4ba80c3 NC |
588 | tmpRef = (SV*)GvCVu(gv); |
| 589 | break; | |
| 590 | case 'F': | |
| 1b6737cc | 591 | if (strEQ(second_letter, "ILEHANDLE")) { |
| c4ba80c3 NC |
592 | /* finally deprecated in 5.8.0 */ |
| 593 | deprecate("*glob{FILEHANDLE}"); | |
| 594 | tmpRef = (SV*)GvIOp(gv); | |
| 595 | } | |
| 596 | else | |
| 1b6737cc | 597 | if (strEQ(second_letter, "ORMAT")) |
| c4ba80c3 NC |
598 | tmpRef = (SV*)GvFORM(gv); |
| 599 | break; | |
| 600 | case 'G': | |
| 1b6737cc | 601 | if (strEQ(second_letter, "LOB")) |
| c4ba80c3 NC |
602 | tmpRef = (SV*)gv; |
| 603 | break; | |
| 604 | case 'H': | |
| 1b6737cc | 605 | if (strEQ(second_letter, "ASH")) |
| c4ba80c3 NC |
606 | tmpRef = (SV*)GvHV(gv); |
| 607 | break; | |
| 608 | case 'I': | |
| 1b6737cc | 609 | if (*second_letter == 'O' && !elem[2]) |
| c4ba80c3 NC |
610 | tmpRef = (SV*)GvIOp(gv); |
| 611 | break; | |
| 612 | case 'N': | |
| 1b6737cc | 613 | if (strEQ(second_letter, "AME")) |
| c4ba80c3 NC |
614 | sv = newSVpvn(GvNAME(gv), GvNAMELEN(gv)); |
| 615 | break; | |
| 616 | case 'P': | |
| 1b6737cc | 617 | if (strEQ(second_letter, "ACKAGE")) { |
| 7fa3a4ab NC |
618 | const HV * const stash = GvSTASH(gv); |
| 619 | const HEK * const hek = stash ? HvNAME_HEK(stash) : NULL; | |
| 396482e1 | 620 | sv = hek ? newSVhek(hek) : newSVpvs("__ANON__"); |
| c4ba80c3 NC |
621 | } |
| 622 | break; | |
| 623 | case 'S': | |
| 1b6737cc | 624 | if (strEQ(second_letter, "CALAR")) |
| f9d52e31 | 625 | tmpRef = GvSVn(gv); |
| c4ba80c3 | 626 | break; |
| 39b99f21 | 627 | } |
| fb73857a | 628 | } |
| 76e3520e GS |
629 | if (tmpRef) |
| 630 | sv = newRV(tmpRef); | |
| fb73857a | 631 | if (sv) |
| 632 | sv_2mortal(sv); | |
| 633 | else | |
| 3280af22 | 634 | sv = &PL_sv_undef; |
| fb73857a | 635 | XPUSHs(sv); |
| 636 | RETURN; | |
| 637 | } | |
| 638 | ||
| a0d0e21e | 639 | /* Pattern matching */ |
| 79072805 | 640 | |
| a0d0e21e | 641 | PP(pp_study) |
| 79072805 | 642 | { |
| 97aff369 | 643 | dVAR; dSP; dPOPss; |
| a0d0e21e LW |
644 | register unsigned char *s; |
| 645 | register I32 pos; | |
| 646 | register I32 ch; | |
| 647 | register I32 *sfirst; | |
| 648 | register I32 *snext; | |
| a0d0e21e LW |
649 | STRLEN len; |
| 650 | ||
| 3280af22 | 651 | if (sv == PL_lastscream) { |
| 1e422769 | 652 | if (SvSCREAM(sv)) |
| 653 | RETPUSHYES; | |
| 654 | } | |
| a4f4e906 NC |
655 | s = (unsigned char*)(SvPV(sv, len)); |
| 656 | pos = len; | |
| c9b9f909 | 657 | if (pos <= 0 || !SvPOK(sv) || SvUTF8(sv)) { |
| a4f4e906 NC |
658 | /* No point in studying a zero length string, and not safe to study |
| 659 | anything that doesn't appear to be a simple scalar (and hence might | |
| 660 | change between now and when the regexp engine runs without our set | |
| bd473224 | 661 | magic ever running) such as a reference to an object with overloaded |
| a4f4e906 NC |
662 | stringification. */ |
| 663 | RETPUSHNO; | |
| 664 | } | |
| 665 | ||
| 666 | if (PL_lastscream) { | |
| 667 | SvSCREAM_off(PL_lastscream); | |
| 668 | SvREFCNT_dec(PL_lastscream); | |
| c07a80fd | 669 | } |
| b37c2d43 | 670 | PL_lastscream = SvREFCNT_inc_simple(sv); |
| 1e422769 | 671 | |
| 672 | s = (unsigned char*)(SvPV(sv, len)); | |
| 673 | pos = len; | |
| 674 | if (pos <= 0) | |
| 675 | RETPUSHNO; | |
| 3280af22 NIS |
676 | if (pos > PL_maxscream) { |
| 677 | if (PL_maxscream < 0) { | |
| 678 | PL_maxscream = pos + 80; | |
| a02a5408 JC |
679 | Newx(PL_screamfirst, 256, I32); |
| 680 | Newx(PL_screamnext, PL_maxscream, I32); | |
| 79072805 LW |
681 | } |
| 682 | else { | |
| 3280af22 NIS |
683 | PL_maxscream = pos + pos / 4; |
| 684 | Renew(PL_screamnext, PL_maxscream, I32); | |
| 79072805 | 685 | } |
| 79072805 | 686 | } |
| a0d0e21e | 687 | |
| 3280af22 NIS |
688 | sfirst = PL_screamfirst; |
| 689 | snext = PL_screamnext; | |
| a0d0e21e LW |
690 | |
| 691 | if (!sfirst || !snext) | |
| cea2e8a9 | 692 | DIE(aTHX_ "do_study: out of memory"); |
| a0d0e21e LW |
693 | |
| 694 | for (ch = 256; ch; --ch) | |
| 695 | *sfirst++ = -1; | |
| 696 | sfirst -= 256; | |
| 697 | ||
| 698 | while (--pos >= 0) { | |
| 1b6737cc | 699 | register const I32 ch = s[pos]; |
| a0d0e21e LW |
700 | if (sfirst[ch] >= 0) |
| 701 | snext[pos] = sfirst[ch] - pos; | |
| 702 | else | |
| 703 | snext[pos] = -pos; | |
| 704 | sfirst[ch] = pos; | |
| 79072805 LW |
705 | } |
| 706 | ||
| c07a80fd | 707 | SvSCREAM_on(sv); |
| 14befaf4 | 708 | /* piggyback on m//g magic */ |
| c445ea15 | 709 | sv_magic(sv, NULL, PERL_MAGIC_regex_global, NULL, 0); |
| 1e422769 | 710 | RETPUSHYES; |
| 79072805 LW |
711 | } |
| 712 | ||
| a0d0e21e | 713 | PP(pp_trans) |
| 79072805 | 714 | { |
| 97aff369 | 715 | dVAR; dSP; dTARG; |
| a0d0e21e LW |
716 | SV *sv; |
| 717 | ||
| 533c011a | 718 | if (PL_op->op_flags & OPf_STACKED) |
| a0d0e21e | 719 | sv = POPs; |
| 59f00321 RGS |
720 | else if (PL_op->op_private & OPpTARGET_MY) |
| 721 | sv = GETTARGET; | |
| 79072805 | 722 | else { |
| 54b9620d | 723 | sv = DEFSV; |
| a0d0e21e | 724 | EXTEND(SP,1); |
| 79072805 | 725 | } |
| adbc6bb1 | 726 | TARG = sv_newmortal(); |
| 4757a243 | 727 | PUSHi(do_trans(sv)); |
| a0d0e21e | 728 | RETURN; |
| 79072805 LW |
729 | } |
| 730 | ||
| a0d0e21e | 731 | /* Lvalue operators. */ |
| 79072805 | 732 | |
| a0d0e21e LW |
733 | PP(pp_schop) |
| 734 | { | |
| 97aff369 | 735 | dVAR; dSP; dTARGET; |
| a0d0e21e LW |
736 | do_chop(TARG, TOPs); |
| 737 | SETTARG; | |
| 738 | RETURN; | |
| 79072805 LW |
739 | } |
| 740 | ||
| a0d0e21e | 741 | PP(pp_chop) |
| 79072805 | 742 | { |
| 97aff369 | 743 | dVAR; dSP; dMARK; dTARGET; dORIGMARK; |
| 2ec6af5f RG |
744 | while (MARK < SP) |
| 745 | do_chop(TARG, *++MARK); | |
| 746 | SP = ORIGMARK; | |
| b59aed67 | 747 | XPUSHTARG; |
| a0d0e21e | 748 | RETURN; |
| 79072805 LW |
749 | } |
| 750 | ||
| a0d0e21e | 751 | PP(pp_schomp) |
| 79072805 | 752 | { |
| 97aff369 | 753 | dVAR; dSP; dTARGET; |
| a0d0e21e LW |
754 | SETi(do_chomp(TOPs)); |
| 755 | RETURN; | |
| 79072805 LW |
756 | } |
| 757 | ||
| a0d0e21e | 758 | PP(pp_chomp) |
| 79072805 | 759 | { |
| 97aff369 | 760 | dVAR; dSP; dMARK; dTARGET; |
| a0d0e21e | 761 | register I32 count = 0; |
| 8ec5e241 | 762 | |
| a0d0e21e LW |
763 | while (SP > MARK) |
| 764 | count += do_chomp(POPs); | |
| b59aed67 | 765 | XPUSHi(count); |
| a0d0e21e | 766 | RETURN; |
| 79072805 LW |
767 | } |
| 768 | ||
| a0d0e21e LW |
769 | PP(pp_undef) |
| 770 | { | |
| 97aff369 | 771 | dVAR; dSP; |
| a0d0e21e LW |
772 | SV *sv; |
| 773 | ||
| 533c011a | 774 | if (!PL_op->op_private) { |
| 774d564b | 775 | EXTEND(SP, 1); |
| a0d0e21e | 776 | RETPUSHUNDEF; |
| 774d564b | 777 | } |
| 79072805 | 778 | |
| a0d0e21e LW |
779 | sv = POPs; |
| 780 | if (!sv) | |
| 781 | RETPUSHUNDEF; | |
| 85e6fe83 | 782 | |
| 765f542d | 783 | SV_CHECK_THINKFIRST_COW_DROP(sv); |
| 85e6fe83 | 784 | |
| a0d0e21e LW |
785 | switch (SvTYPE(sv)) { |
| 786 | case SVt_NULL: | |
| 787 | break; | |
| 788 | case SVt_PVAV: | |
| 789 | av_undef((AV*)sv); | |
| 790 | break; | |
| 791 | case SVt_PVHV: | |
| 792 | hv_undef((HV*)sv); | |
| 793 | break; | |
| 794 | case SVt_PVCV: | |
| 041457d9 | 795 | if (cv_const_sv((CV*)sv) && ckWARN(WARN_MISC)) |
| 9014280d | 796 | Perl_warner(aTHX_ packWARN(WARN_MISC), "Constant subroutine %s undefined", |
| 54310121 | 797 | CvANON((CV*)sv) ? "(anonymous)" : GvENAME(CvGV((CV*)sv))); |
| 5f66b61c | 798 | /* FALLTHROUGH */ |
| 9607fc9c | 799 | case SVt_PVFM: |
| 6fc92669 GS |
800 | { |
| 801 | /* let user-undef'd sub keep its identity */ | |
| 0bd48802 | 802 | GV* const gv = CvGV((CV*)sv); |
| 6fc92669 GS |
803 | cv_undef((CV*)sv); |
| 804 | CvGV((CV*)sv) = gv; | |
| 805 | } | |
| a0d0e21e | 806 | break; |
| 8e07c86e | 807 | case SVt_PVGV: |
| 44a8e56a | 808 | if (SvFAKE(sv)) |
| 3280af22 | 809 | SvSetMagicSV(sv, &PL_sv_undef); |
| 20408e3c GS |
810 | else { |
| 811 | GP *gp; | |
| 812 | gp_free((GV*)sv); | |
| a02a5408 | 813 | Newxz(gp, 1, GP); |
| 20408e3c | 814 | GvGP(sv) = gp_ref(gp); |
| 561b68a9 | 815 | GvSV(sv) = newSV(0); |
| 57843af0 | 816 | GvLINE(sv) = CopLINE(PL_curcop); |
| 20408e3c GS |
817 | GvEGV(sv) = (GV*)sv; |
| 818 | GvMULTI_on(sv); | |
| 819 | } | |
| 44a8e56a | 820 | break; |
| a0d0e21e | 821 | default: |
| b15aece3 | 822 | if (SvTYPE(sv) >= SVt_PV && SvPVX_const(sv) && SvLEN(sv)) { |
| 8bd4d4c5 | 823 | SvPV_free(sv); |
| c445ea15 | 824 | SvPV_set(sv, NULL); |
| 4633a7c4 | 825 | SvLEN_set(sv, 0); |
| a0d0e21e | 826 | } |
| 0c34ef67 | 827 | SvOK_off(sv); |
| 4633a7c4 | 828 | SvSETMAGIC(sv); |
| 79072805 | 829 | } |
| a0d0e21e LW |
830 | |
| 831 | RETPUSHUNDEF; | |
| 79072805 LW |
832 | } |
| 833 | ||
| a0d0e21e | 834 | PP(pp_predec) |
| 79072805 | 835 | { |
| 97aff369 | 836 | dVAR; dSP; |
| f39684df | 837 | if (SvTYPE(TOPs) >= SVt_PVGV && SvTYPE(TOPs) != SVt_PVLV) |
| d470f89e | 838 | DIE(aTHX_ PL_no_modify); |
| 3510b4a1 NC |
839 | if (!SvREADONLY(TOPs) && SvIOK_notUV(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) |
| 840 | && SvIVX(TOPs) != IV_MIN) | |
| 55497cff | 841 | { |
| 45977657 | 842 | SvIV_set(TOPs, SvIVX(TOPs) - 1); |
| 55497cff | 843 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
| 748a9306 LW |
844 | } |
| 845 | else | |
| 846 | sv_dec(TOPs); | |
| a0d0e21e LW |
847 | SvSETMAGIC(TOPs); |
| 848 | return NORMAL; | |
| 849 | } | |
| 79072805 | 850 | |
| a0d0e21e LW |
851 | PP(pp_postinc) |
| 852 | { | |
| 97aff369 | 853 | dVAR; dSP; dTARGET; |
| f39684df | 854 | if (SvTYPE(TOPs) >= SVt_PVGV && SvTYPE(TOPs) != SVt_PVLV) |
| d470f89e | 855 | DIE(aTHX_ PL_no_modify); |
| a0d0e21e | 856 | sv_setsv(TARG, TOPs); |
| 3510b4a1 NC |
857 | if (!SvREADONLY(TOPs) && SvIOK_notUV(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) |
| 858 | && SvIVX(TOPs) != IV_MAX) | |
| 55497cff | 859 | { |
| 45977657 | 860 | SvIV_set(TOPs, SvIVX(TOPs) + 1); |
| 55497cff | 861 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
| 748a9306 LW |
862 | } |
| 863 | else | |
| 864 | sv_inc(TOPs); | |
| a0d0e21e | 865 | SvSETMAGIC(TOPs); |
| 1e54a23f | 866 | /* special case for undef: see thread at 2003-03/msg00536.html in archive */ |
| a0d0e21e LW |
867 | if (!SvOK(TARG)) |
| 868 | sv_setiv(TARG, 0); | |
| 869 | SETs(TARG); | |
| 870 | return NORMAL; | |
| 871 | } | |
| 79072805 | 872 | |
| a0d0e21e LW |
873 | PP(pp_postdec) |
| 874 | { | |
| 97aff369 | 875 | dVAR; dSP; dTARGET; |
| f39684df | 876 | if (SvTYPE(TOPs) >= SVt_PVGV && SvTYPE(TOPs) != SVt_PVLV) |
| d470f89e | 877 | DIE(aTHX_ PL_no_modify); |
| a0d0e21e | 878 | sv_setsv(TARG, TOPs); |
| 3510b4a1 NC |
879 | if (!SvREADONLY(TOPs) && SvIOK_notUV(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) |
| 880 | && SvIVX(TOPs) != IV_MIN) | |
| 55497cff | 881 | { |
| 45977657 | 882 | SvIV_set(TOPs, SvIVX(TOPs) - 1); |
| 55497cff | 883 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
| 748a9306 LW |
884 | } |
| 885 | else | |
| 886 | sv_dec(TOPs); | |
| a0d0e21e LW |
887 | SvSETMAGIC(TOPs); |
| 888 | SETs(TARG); | |
| 889 | return NORMAL; | |
| 890 | } | |
| 79072805 | 891 | |
| a0d0e21e LW |
892 | /* Ordinary operators. */ |
| 893 | ||
| 894 | PP(pp_pow) | |
| 895 | { | |
| 97aff369 | 896 | dVAR; dSP; dATARGET; |
| 58d76dfd | 897 | #ifdef PERL_PRESERVE_IVUV |
| 52a96ae6 HS |
898 | bool is_int = 0; |
| 899 | #endif | |
| 900 | tryAMAGICbin(pow,opASSIGN); | |
| 901 | #ifdef PERL_PRESERVE_IVUV | |
| 902 | /* For integer to integer power, we do the calculation by hand wherever | |
| 903 | we're sure it is safe; otherwise we call pow() and try to convert to | |
| 904 | integer afterwards. */ | |
| 58d76dfd | 905 | { |
| 900658e3 PF |
906 | SvIV_please(TOPs); |
| 907 | if (SvIOK(TOPs)) { | |
| 908 | SvIV_please(TOPm1s); | |
| 909 | if (SvIOK(TOPm1s)) { | |
| 910 | UV power; | |
| 911 | bool baseuok; | |
| 912 | UV baseuv; | |
| 913 | ||
| 914 | if (SvUOK(TOPs)) { | |
| 915 | power = SvUVX(TOPs); | |
| 916 | } else { | |
| 917 | const IV iv = SvIVX(TOPs); | |
| 918 | if (iv >= 0) { | |
| 919 | power = iv; | |
| 920 | } else { | |
| 921 | goto float_it; /* Can't do negative powers this way. */ | |
| 922 | } | |
| 923 | } | |
| 924 | ||
| 925 | baseuok = SvUOK(TOPm1s); | |
| 926 | if (baseuok) { | |
| 927 | baseuv = SvUVX(TOPm1s); | |
| 928 | } else { | |
| 929 | const IV iv = SvIVX(TOPm1s); | |
| 930 | if (iv >= 0) { | |
| 931 | baseuv = iv; | |
| 932 | baseuok = TRUE; /* effectively it's a UV now */ | |
| 933 | } else { | |
| 934 | baseuv = -iv; /* abs, baseuok == false records sign */ | |
| 935 | } | |
| 936 | } | |
| 52a96ae6 HS |
937 | /* now we have integer ** positive integer. */ |
| 938 | is_int = 1; | |
| 939 | ||
| 940 | /* foo & (foo - 1) is zero only for a power of 2. */ | |
| 58d76dfd | 941 | if (!(baseuv & (baseuv - 1))) { |
| 52a96ae6 | 942 | /* We are raising power-of-2 to a positive integer. |
| 58d76dfd JH |
943 | The logic here will work for any base (even non-integer |
| 944 | bases) but it can be less accurate than | |
| 945 | pow (base,power) or exp (power * log (base)) when the | |
| 946 | intermediate values start to spill out of the mantissa. | |
| 947 | With powers of 2 we know this can't happen. | |
| 948 | And powers of 2 are the favourite thing for perl | |
| 949 | programmers to notice ** not doing what they mean. */ | |
| 950 | NV result = 1.0; | |
| 951 | NV base = baseuok ? baseuv : -(NV)baseuv; | |
| 900658e3 PF |
952 | |
| 953 | if (power & 1) { | |
| 954 | result *= base; | |
| 955 | } | |
| 956 | while (power >>= 1) { | |
| 957 | base *= base; | |
| 958 | if (power & 1) { | |
| 959 | result *= base; | |
| 960 | } | |
| 961 | } | |
| 58d76dfd JH |
962 | SP--; |
| 963 | SETn( result ); | |
| 52a96ae6 | 964 | SvIV_please(TOPs); |
| 58d76dfd | 965 | RETURN; |
| 52a96ae6 HS |
966 | } else { |
| 967 | register unsigned int highbit = 8 * sizeof(UV); | |
| 900658e3 PF |
968 | register unsigned int diff = 8 * sizeof(UV); |
| 969 | while (diff >>= 1) { | |
| 970 | highbit -= diff; | |
| 971 | if (baseuv >> highbit) { | |
| 972 | highbit += diff; | |
| 973 | } | |
| 52a96ae6 HS |
974 | } |
| 975 | /* we now have baseuv < 2 ** highbit */ | |
| 976 | if (power * highbit <= 8 * sizeof(UV)) { | |
| 977 | /* result will definitely fit in UV, so use UV math | |
| 978 | on same algorithm as above */ | |
| 979 | register UV result = 1; | |
| 980 | register UV base = baseuv; | |
| 900658e3 PF |
981 | const bool odd_power = (bool)(power & 1); |
| 982 | if (odd_power) { | |
| 983 | result *= base; | |
| 984 | } | |
| 985 | while (power >>= 1) { | |
| 986 | base *= base; | |
| 987 | if (power & 1) { | |
| 52a96ae6 | 988 | result *= base; |
| 52a96ae6 HS |
989 | } |
| 990 | } | |
| 991 | SP--; | |
| 0615a994 | 992 | if (baseuok || !odd_power) |
| 52a96ae6 HS |
993 | /* answer is positive */ |
| 994 | SETu( result ); | |
| 995 | else if (result <= (UV)IV_MAX) | |
| 996 | /* answer negative, fits in IV */ | |
| 997 | SETi( -(IV)result ); | |
| 998 | else if (result == (UV)IV_MIN) | |
| 999 | /* 2's complement assumption: special case IV_MIN */ | |
| 1000 | SETi( IV_MIN ); | |
| 1001 | else | |
| 1002 | /* answer negative, doesn't fit */ | |
| 1003 | SETn( -(NV)result ); | |
| 1004 | RETURN; | |
| 1005 | } | |
| 1006 | } | |
| 1007 | } | |
| 1008 | } | |
| 58d76dfd | 1009 | } |
| 52a96ae6 | 1010 | float_it: |
| 58d76dfd | 1011 | #endif |
| a0d0e21e | 1012 | { |
| 52a96ae6 | 1013 | dPOPTOPnnrl; |
| 3aaeb624 JA |
1014 | |
| 1015 | #if defined(USE_LONG_DOUBLE) && defined(HAS_AIX_POWL_NEG_BASE_BUG) | |
| 1016 | /* | |
| 1017 | We are building perl with long double support and are on an AIX OS | |
| 1018 | afflicted with a powl() function that wrongly returns NaNQ for any | |
| 1019 | negative base. This was reported to IBM as PMR #23047-379 on | |
| 1020 | 03/06/2006. The problem exists in at least the following versions | |
| 1021 | of AIX and the libm fileset, and no doubt others as well: | |
| 1022 | ||
| 1023 | AIX 4.3.3-ML10 bos.adt.libm 4.3.3.50 | |
| 1024 | AIX 5.1.0-ML04 bos.adt.libm 5.1.0.29 | |
| 1025 | AIX 5.2.0 bos.adt.libm 5.2.0.85 | |
| 1026 | ||
| 1027 | So, until IBM fixes powl(), we provide the following workaround to | |
| 1028 | handle the problem ourselves. Our logic is as follows: for | |
| 1029 | negative bases (left), we use fmod(right, 2) to check if the | |
| 1030 | exponent is an odd or even integer: | |
| 1031 | ||
| 1032 | - if odd, powl(left, right) == -powl(-left, right) | |
| 1033 | - if even, powl(left, right) == powl(-left, right) | |
| 1034 | ||
| 1035 | If the exponent is not an integer, the result is rightly NaNQ, so | |
| 1036 | we just return that (as NV_NAN). | |
| 1037 | */ | |
| 1038 | ||
| 1039 | if (left < 0.0) { | |
| 1040 | NV mod2 = Perl_fmod( right, 2.0 ); | |
| 1041 | if (mod2 == 1.0 || mod2 == -1.0) { /* odd integer */ | |
| 1042 | SETn( -Perl_pow( -left, right) ); | |
| 1043 | } else if (mod2 == 0.0) { /* even integer */ | |
| 1044 | SETn( Perl_pow( -left, right) ); | |
| 1045 | } else { /* fractional power */ | |
| 1046 | SETn( NV_NAN ); | |
| 1047 | } | |
| 1048 | } else { | |
| 1049 | SETn( Perl_pow( left, right) ); | |
| 1050 | } | |
| 1051 | #else | |
| 52a96ae6 | 1052 | SETn( Perl_pow( left, right) ); |
| 3aaeb624 JA |
1053 | #endif /* HAS_AIX_POWL_NEG_BASE_BUG */ |
| 1054 | ||
| 52a96ae6 HS |
1055 | #ifdef PERL_PRESERVE_IVUV |
| 1056 | if (is_int) | |
| 1057 | SvIV_please(TOPs); | |
| 1058 | #endif | |
| 1059 | RETURN; | |
| 93a17b20 | 1060 | } |
| a0d0e21e LW |
1061 | } |
| 1062 | ||
| 1063 | PP(pp_multiply) | |
| 1064 | { | |
| 97aff369 | 1065 | dVAR; dSP; dATARGET; tryAMAGICbin(mult,opASSIGN); |
| 28e5dec8 JH |
1066 | #ifdef PERL_PRESERVE_IVUV |
| 1067 | SvIV_please(TOPs); | |
| 1068 | if (SvIOK(TOPs)) { | |
| 1069 | /* Unless the left argument is integer in range we are going to have to | |
| 1070 | use NV maths. Hence only attempt to coerce the right argument if | |
| 1071 | we know the left is integer. */ | |
| 1072 | /* Left operand is defined, so is it IV? */ | |
| 1073 | SvIV_please(TOPm1s); | |
| 1074 | if (SvIOK(TOPm1s)) { | |
| 1075 | bool auvok = SvUOK(TOPm1s); | |
| 1076 | bool buvok = SvUOK(TOPs); | |
| 1077 | const UV topmask = (~ (UV)0) << (4 * sizeof (UV)); | |
| 1078 | const UV botmask = ~((~ (UV)0) << (4 * sizeof (UV))); | |
| 1079 | UV alow; | |
| 1080 | UV ahigh; | |
| 1081 | UV blow; | |
| 1082 | UV bhigh; | |
| 1083 | ||
| 1084 | if (auvok) { | |
| 1085 | alow = SvUVX(TOPm1s); | |
| 1086 | } else { | |
| 1b6737cc | 1087 | const IV aiv = SvIVX(TOPm1s); |
| 28e5dec8 JH |
1088 | if (aiv >= 0) { |
| 1089 | alow = aiv; | |
| 1090 | auvok = TRUE; /* effectively it's a UV now */ | |
| 1091 | } else { | |
| 1092 | alow = -aiv; /* abs, auvok == false records sign */ | |
| 1093 | } | |
| 1094 | } | |
| 1095 | if (buvok) { | |
| 1096 | blow = SvUVX(TOPs); | |
| 1097 | } else { | |
| 1b6737cc | 1098 | const IV biv = SvIVX(TOPs); |
| 28e5dec8 JH |
1099 | if (biv >= 0) { |
| 1100 | blow = biv; | |
| 1101 | buvok = TRUE; /* effectively it's a UV now */ | |
| 1102 | } else { | |
| 1103 | blow = -biv; /* abs, buvok == false records sign */ | |
| 1104 | } | |
| 1105 | } | |
| 1106 | ||
| 1107 | /* If this does sign extension on unsigned it's time for plan B */ | |
| 1108 | ahigh = alow >> (4 * sizeof (UV)); | |
| 1109 | alow &= botmask; | |
| 1110 | bhigh = blow >> (4 * sizeof (UV)); | |
| 1111 | blow &= botmask; | |
| 1112 | if (ahigh && bhigh) { | |
| 6f207bd3 | 1113 | NOOP; |
| 28e5dec8 JH |
1114 | /* eg 32 bit is at least 0x10000 * 0x10000 == 0x100000000 |
| 1115 | which is overflow. Drop to NVs below. */ | |
| 1116 | } else if (!ahigh && !bhigh) { | |
| 1117 | /* eg 32 bit is at most 0xFFFF * 0xFFFF == 0xFFFE0001 | |
| 1118 | so the unsigned multiply cannot overflow. */ | |
| c445ea15 | 1119 | const UV product = alow * blow; |
| 28e5dec8 JH |
1120 | if (auvok == buvok) { |
| 1121 | /* -ve * -ve or +ve * +ve gives a +ve result. */ | |
| 1122 | SP--; | |
| 1123 | SETu( product ); | |
| 1124 | RETURN; | |
| 1125 | } else if (product <= (UV)IV_MIN) { | |
| 1126 | /* 2s complement assumption that (UV)-IV_MIN is correct. */ | |
| 1127 | /* -ve result, which could overflow an IV */ | |
| 1128 | SP--; | |
| 25716404 | 1129 | SETi( -(IV)product ); |
| 28e5dec8 JH |
1130 | RETURN; |
| 1131 | } /* else drop to NVs below. */ | |
| 1132 | } else { | |
| 1133 | /* One operand is large, 1 small */ | |
| 1134 | UV product_middle; | |
| 1135 | if (bhigh) { | |
| 1136 | /* swap the operands */ | |
| 1137 | ahigh = bhigh; | |
| 1138 | bhigh = blow; /* bhigh now the temp var for the swap */ | |
| 1139 | blow = alow; | |
| 1140 | alow = bhigh; | |
| 1141 | } | |
| 1142 | /* now, ((ahigh * blow) << half_UV_len) + (alow * blow) | |
| 1143 | multiplies can't overflow. shift can, add can, -ve can. */ | |
| 1144 | product_middle = ahigh * blow; | |
| 1145 | if (!(product_middle & topmask)) { | |
| 1146 | /* OK, (ahigh * blow) won't lose bits when we shift it. */ | |
| 1147 | UV product_low; | |
| 1148 | product_middle <<= (4 * sizeof (UV)); | |
| 1149 | product_low = alow * blow; | |
| 1150 | ||
| 1151 | /* as for pp_add, UV + something mustn't get smaller. | |
| 1152 | IIRC ANSI mandates this wrapping *behaviour* for | |
| 1153 | unsigned whatever the actual representation*/ | |
| 1154 | product_low += product_middle; | |
| 1155 | if (product_low >= product_middle) { | |
| 1156 | /* didn't overflow */ | |
| 1157 | if (auvok == buvok) { | |
| 1158 | /* -ve * -ve or +ve * +ve gives a +ve result. */ | |
| 1159 | SP--; | |
| 1160 | SETu( product_low ); | |
| 1161 | RETURN; | |
| 1162 | } else if (product_low <= (UV)IV_MIN) { | |
| 1163 | /* 2s complement assumption again */ | |
| 1164 | /* -ve result, which could overflow an IV */ | |
| 1165 | SP--; | |
| 25716404 | 1166 | SETi( -(IV)product_low ); |
| 28e5dec8 JH |
1167 | RETURN; |
| 1168 | } /* else drop to NVs below. */ | |
| 1169 | } | |
| 1170 | } /* product_middle too large */ | |
| 1171 | } /* ahigh && bhigh */ | |
| 1172 | } /* SvIOK(TOPm1s) */ | |
| 1173 | } /* SvIOK(TOPs) */ | |
| 1174 | #endif | |
| a0d0e21e LW |
1175 | { |
| 1176 | dPOPTOPnnrl; | |
| 1177 | SETn( left * right ); | |
| 1178 | RETURN; | |
| 79072805 | 1179 | } |
| a0d0e21e LW |
1180 | } |
| 1181 | ||
| 1182 | PP(pp_divide) | |
| 1183 | { | |
| 97aff369 | 1184 | dVAR; dSP; dATARGET; tryAMAGICbin(div,opASSIGN); |
| 5479d192 | 1185 | /* Only try to do UV divide first |
| 68795e93 | 1186 | if ((SLOPPYDIVIDE is true) or |
| 5479d192 NC |
1187 | (PERL_PRESERVE_IVUV is true and one or both SV is a UV too large |
| 1188 | to preserve)) | |
| 1189 | The assumption is that it is better to use floating point divide | |
| 1190 | whenever possible, only doing integer divide first if we can't be sure. | |
| 1191 | If NV_PRESERVES_UV is true then we know at compile time that no UV | |
| 1192 | can be too large to preserve, so don't need to compile the code to | |
| 1193 | test the size of UVs. */ | |
| 1194 | ||
| a0d0e21e | 1195 | #ifdef SLOPPYDIVIDE |
| 5479d192 NC |
1196 | # define PERL_TRY_UV_DIVIDE |
| 1197 | /* ensure that 20./5. == 4. */ | |
| a0d0e21e | 1198 | #else |
| 5479d192 NC |
1199 | # ifdef PERL_PRESERVE_IVUV |
| 1200 | # ifndef NV_PRESERVES_UV | |
| 1201 | # define PERL_TRY_UV_DIVIDE | |
| 1202 | # endif | |
| 1203 | # endif | |
| a0d0e21e | 1204 | #endif |
| 5479d192 NC |
1205 | |
| 1206 | #ifdef PERL_TRY_UV_DIVIDE | |
| 1207 | SvIV_please(TOPs); | |
| 1208 | if (SvIOK(TOPs)) { | |
| 1209 | SvIV_please(TOPm1s); | |
| 1210 | if (SvIOK(TOPm1s)) { | |
| 1211 | bool left_non_neg = SvUOK(TOPm1s); | |
| 1212 | bool right_non_neg = SvUOK(TOPs); | |
| 1213 | UV left; | |
| 1214 | UV right; | |
| 1215 | ||
| 1216 | if (right_non_neg) { | |
| 1217 | right = SvUVX(TOPs); | |
| 1218 | } | |
| 1219 | else { | |
| 1b6737cc | 1220 | const IV biv = SvIVX(TOPs); |
| 5479d192 NC |
1221 | if (biv >= 0) { |
| 1222 | right = biv; | |
| 1223 | right_non_neg = TRUE; /* effectively it's a UV now */ | |
| 1224 | } | |
| 1225 | else { | |
| 1226 | right = -biv; | |
| 1227 | } | |
| 1228 | } | |
| 1229 | /* historically undef()/0 gives a "Use of uninitialized value" | |
| 1230 | warning before dieing, hence this test goes here. | |
| 1231 | If it were immediately before the second SvIV_please, then | |
| 1232 | DIE() would be invoked before left was even inspected, so | |
| 1233 | no inpsection would give no warning. */ | |
| 1234 | if (right == 0) | |
| 1235 | DIE(aTHX_ "Illegal division by zero"); | |
| 1236 | ||
| 1237 | if (left_non_neg) { | |
| 1238 | left = SvUVX(TOPm1s); | |
| 1239 | } | |
| 1240 | else { | |
| 1b6737cc | 1241 | const IV aiv = SvIVX(TOPm1s); |
| 5479d192 NC |
1242 | if (aiv >= 0) { |
| 1243 | left = aiv; | |
| 1244 | left_non_neg = TRUE; /* effectively it's a UV now */ | |
| 1245 | } | |
| 1246 | else { | |
| 1247 | left = -aiv; | |
| 1248 | } | |
| 1249 | } | |
| 1250 | ||
| 1251 | if (left >= right | |
| 1252 | #ifdef SLOPPYDIVIDE | |
| 1253 | /* For sloppy divide we always attempt integer division. */ | |
| 1254 | #else | |
| 1255 | /* Otherwise we only attempt it if either or both operands | |
| 1256 | would not be preserved by an NV. If both fit in NVs | |
| 0c2ee62a NC |
1257 | we fall through to the NV divide code below. However, |
| 1258 | as left >= right to ensure integer result here, we know that | |
| 1259 | we can skip the test on the right operand - right big | |
| 1260 | enough not to be preserved can't get here unless left is | |
| 1261 | also too big. */ | |
| 1262 | ||
| 1263 | && (left > ((UV)1 << NV_PRESERVES_UV_BITS)) | |
| 5479d192 NC |
1264 | #endif |
| 1265 | ) { | |
| 1266 | /* Integer division can't overflow, but it can be imprecise. */ | |
| 1b6737cc | 1267 | const UV result = left / right; |
| 5479d192 NC |
1268 | if (result * right == left) { |
| 1269 | SP--; /* result is valid */ | |
| 1270 | if (left_non_neg == right_non_neg) { | |
| 1271 | /* signs identical, result is positive. */ | |
| 1272 | SETu( result ); | |
| 1273 | RETURN; | |
| 1274 | } | |
| 1275 | /* 2s complement assumption */ | |
| 1276 | if (result <= (UV)IV_MIN) | |
| 91f3b821 | 1277 | SETi( -(IV)result ); |
| 5479d192 NC |
1278 | else { |
| 1279 | /* It's exact but too negative for IV. */ | |
| 1280 | SETn( -(NV)result ); | |
| 1281 | } | |
| 1282 | RETURN; | |
| 1283 | } /* tried integer divide but it was not an integer result */ | |
| 32fdb065 | 1284 | } /* else (PERL_ABS(result) < 1.0) or (both UVs in range for NV) */ |
| 5479d192 NC |
1285 | } /* left wasn't SvIOK */ |
| 1286 | } /* right wasn't SvIOK */ | |
| 1287 | #endif /* PERL_TRY_UV_DIVIDE */ | |
| 1288 | { | |
| 1289 | dPOPPOPnnrl; | |
| 1290 | if (right == 0.0) | |
| 1291 | DIE(aTHX_ "Illegal division by zero"); | |
| 1292 | PUSHn( left / right ); | |
| 1293 | RETURN; | |
| 79072805 | 1294 | } |
| a0d0e21e LW |
1295 | } |
| 1296 | ||
| 1297 | PP(pp_modulo) | |
| 1298 | { | |
| 97aff369 | 1299 | dVAR; dSP; dATARGET; tryAMAGICbin(modulo,opASSIGN); |
| a0d0e21e | 1300 | { |
| 9c5ffd7c JH |
1301 | UV left = 0; |
| 1302 | UV right = 0; | |
| dc656993 JH |
1303 | bool left_neg = FALSE; |
| 1304 | bool right_neg = FALSE; | |
| e2c88acc NC |
1305 | bool use_double = FALSE; |
| 1306 | bool dright_valid = FALSE; | |
| 9c5ffd7c JH |
1307 | NV dright = 0.0; |
| 1308 | NV dleft = 0.0; | |
| 787eafbd | 1309 | |
| e2c88acc NC |
1310 | SvIV_please(TOPs); |
| 1311 | if (SvIOK(TOPs)) { | |
| 1312 | right_neg = !SvUOK(TOPs); | |
| 1313 | if (!right_neg) { | |
| 1314 | right = SvUVX(POPs); | |
| 1315 | } else { | |
| 1b6737cc | 1316 | const IV biv = SvIVX(POPs); |
| e2c88acc NC |
1317 | if (biv >= 0) { |
| 1318 | right = biv; | |
| 1319 | right_neg = FALSE; /* effectively it's a UV now */ | |
| 1320 | } else { | |
| 1321 | right = -biv; | |
| 1322 | } | |
| 1323 | } | |
| 1324 | } | |
| 1325 | else { | |
| 787eafbd | 1326 | dright = POPn; |
| 787eafbd IZ |
1327 | right_neg = dright < 0; |
| 1328 | if (right_neg) | |
| 1329 | dright = -dright; | |
| e2c88acc NC |
1330 | if (dright < UV_MAX_P1) { |
| 1331 | right = U_V(dright); | |
| 1332 | dright_valid = TRUE; /* In case we need to use double below. */ | |
| 1333 | } else { | |
| 1334 | use_double = TRUE; | |
| 1335 | } | |
| 787eafbd | 1336 | } |
| a0d0e21e | 1337 | |
| e2c88acc NC |
1338 | /* At this point use_double is only true if right is out of range for |
| 1339 | a UV. In range NV has been rounded down to nearest UV and | |
| 1340 | use_double false. */ | |
| 1341 | SvIV_please(TOPs); | |
| 1342 | if (!use_double && SvIOK(TOPs)) { | |
| 1343 | if (SvIOK(TOPs)) { | |
| 1344 | left_neg = !SvUOK(TOPs); | |
| 1345 | if (!left_neg) { | |
| 1346 | left = SvUVX(POPs); | |
| 1347 | } else { | |
| 0bd48802 | 1348 | const IV aiv = SvIVX(POPs); |
| e2c88acc NC |
1349 | if (aiv >= 0) { |
| 1350 | left = aiv; | |
| 1351 | left_neg = FALSE; /* effectively it's a UV now */ | |
| 1352 | } else { | |
| 1353 | left = -aiv; | |
| 1354 | } | |
| 1355 | } | |
| 1356 | } | |
| 1357 | } | |
| 787eafbd IZ |
1358 | else { |
| 1359 | dleft = POPn; | |
| 787eafbd IZ |
1360 | left_neg = dleft < 0; |
| 1361 | if (left_neg) | |
| 1362 | dleft = -dleft; | |
| 68dc0745 | 1363 | |
| e2c88acc NC |
1364 | /* This should be exactly the 5.6 behaviour - if left and right are |
| 1365 | both in range for UV then use U_V() rather than floor. */ | |
| 1366 | if (!use_double) { | |
| 1367 | if (dleft < UV_MAX_P1) { | |
| 1368 | /* right was in range, so is dleft, so use UVs not double. | |
| 1369 | */ | |
| 1370 | left = U_V(dleft); | |
| 1371 | } | |
| 1372 | /* left is out of range for UV, right was in range, so promote | |
| 1373 | right (back) to double. */ | |
| 1374 | else { | |
| 1375 | /* The +0.5 is used in 5.6 even though it is not strictly | |
| 1376 | consistent with the implicit +0 floor in the U_V() | |
| 1377 | inside the #if 1. */ | |
| 1378 | dleft = Perl_floor(dleft + 0.5); | |
| 1379 | use_double = TRUE; | |
| 1380 | if (dright_valid) | |
| 1381 | dright = Perl_floor(dright + 0.5); | |
| 1382 | else | |
| 1383 | dright = right; | |
| 1384 | } | |
| 1385 | } | |
| 1386 | } | |
| 787eafbd | 1387 | if (use_double) { |
| 65202027 | 1388 | NV dans; |
| 787eafbd | 1389 | |
| 787eafbd | 1390 | if (!dright) |
| cea2e8a9 | 1391 | DIE(aTHX_ "Illegal modulus zero"); |
| 787eafbd | 1392 | |
| 65202027 | 1393 | dans = Perl_fmod(dleft, dright); |
| 787eafbd IZ |
1394 | if ((left_neg != right_neg) && dans) |
| 1395 | dans = dright - dans; | |
| 1396 | if (right_neg) | |
| 1397 | dans = -dans; | |
| 1398 | sv_setnv(TARG, dans); | |
| 1399 | } | |
| 1400 | else { | |
| 1401 | UV ans; | |
| 1402 | ||
| 787eafbd | 1403 | if (!right) |
| cea2e8a9 | 1404 | DIE(aTHX_ "Illegal modulus zero"); |
| 787eafbd IZ |
1405 | |
| 1406 | ans = left % right; | |
| 1407 | if ((left_neg != right_neg) && ans) | |
| 1408 | ans = right - ans; | |
| 1409 | if (right_neg) { | |
| 1410 | /* XXX may warn: unary minus operator applied to unsigned type */ | |
| 1411 | /* could change -foo to be (~foo)+1 instead */ | |
| 1412 | if (ans <= ~((UV)IV_MAX)+1) | |
| 1413 | sv_setiv(TARG, ~ans+1); | |
| 1414 | else | |
| 65202027 | 1415 | sv_setnv(TARG, -(NV)ans); |
| 787eafbd IZ |
1416 | } |
| 1417 | else | |
| 1418 | sv_setuv(TARG, ans); | |
| 1419 | } | |
| 1420 | PUSHTARG; | |
| 1421 | RETURN; | |
| 79072805 | 1422 | } |
| a0d0e21e | 1423 | } |
| 79072805 | 1424 | |
| a0d0e21e LW |
1425 | PP(pp_repeat) |
| 1426 | { | |
| 97aff369 | 1427 | dVAR; dSP; dATARGET; tryAMAGICbin(repeat,opASSIGN); |
| 748a9306 | 1428 | { |
| 2b573ace JH |
1429 | register IV count; |
| 1430 | dPOPss; | |
| 5b295bef | 1431 | SvGETMAGIC(sv); |
| 2b573ace JH |
1432 | if (SvIOKp(sv)) { |
| 1433 | if (SvUOK(sv)) { | |
| 1b6737cc | 1434 | const UV uv = SvUV(sv); |
| 2b573ace JH |
1435 | if (uv > IV_MAX) |
| 1436 | count = IV_MAX; /* The best we can do? */ | |
| 1437 | else | |
| 1438 | count = uv; | |
| 1439 | } else { | |
| 0bd48802 | 1440 | const IV iv = SvIV(sv); |
| 2b573ace JH |
1441 | if (iv < 0) |
| 1442 | count = 0; | |
| 1443 | else | |
| 1444 | count = iv; | |
| 1445 | } | |
| 1446 | } | |
| 1447 | else if (SvNOKp(sv)) { | |
| 1b6737cc | 1448 | const NV nv = SvNV(sv); |
| 2b573ace JH |
1449 | if (nv < 0.0) |
| 1450 | count = 0; | |
| 1451 | else | |
| 1452 | count = (IV)nv; | |
| 1453 | } | |
| 1454 | else | |
| 1455 | count = SvIVx(sv); | |
| 533c011a | 1456 | if (GIMME == G_ARRAY && PL_op->op_private & OPpREPEAT_DOLIST) { |
| a0d0e21e | 1457 | dMARK; |
| 0bd48802 AL |
1458 | static const char oom_list_extend[] = "Out of memory during list extend"; |
| 1459 | const I32 items = SP - MARK; | |
| 1460 | const I32 max = items * count; | |
| 79072805 | 1461 | |
| 2b573ace JH |
1462 | MEM_WRAP_CHECK_1(max, SV*, oom_list_extend); |
| 1463 | /* Did the max computation overflow? */ | |
| 27d5b266 | 1464 | if (items > 0 && max > 0 && (max < items || max < count)) |
| 2b573ace | 1465 | Perl_croak(aTHX_ oom_list_extend); |
| a0d0e21e LW |
1466 | MEXTEND(MARK, max); |
| 1467 | if (count > 1) { | |
| 1468 | while (SP > MARK) { | |
| 976c8a39 JH |
1469 | #if 0 |
| 1470 | /* This code was intended to fix 20010809.028: | |
| 1471 | ||
| 1472 | $x = 'abcd'; | |
| 1473 | for (($x =~ /./g) x 2) { | |
| 1474 | print chop; # "abcdabcd" expected as output. | |
| 1475 | } | |
| 1476 | ||
| 1477 | * but that change (#11635) broke this code: | |
| 1478 | ||
| 1479 | $x = [("foo")x2]; # only one "foo" ended up in the anonlist. | |
| 1480 | ||
| 1481 | * I can't think of a better fix that doesn't introduce | |
| 1482 | * an efficiency hit by copying the SVs. The stack isn't | |
| 1483 | * refcounted, and mortalisation obviously doesn't | |
| 1484 | * Do The Right Thing when the stack has more than | |
| 1485 | * one pointer to the same mortal value. | |
| 1486 | * .robin. | |
| 1487 | */ | |
| e30acc16 RH |
1488 | if (*SP) { |
| 1489 | *SP = sv_2mortal(newSVsv(*SP)); | |
| 1490 | SvREADONLY_on(*SP); | |
| 1491 | } | |
| 976c8a39 JH |
1492 | #else |
| 1493 | if (*SP) | |
| 1494 | SvTEMP_off((*SP)); | |
| 1495 | #endif | |
| a0d0e21e | 1496 | SP--; |
| 79072805 | 1497 | } |
| a0d0e21e LW |
1498 | MARK++; |
| 1499 | repeatcpy((char*)(MARK + items), (char*)MARK, | |
| 1500 | items * sizeof(SV*), count - 1); | |
| 1501 | SP += max; | |
| 79072805 | 1502 | } |
| a0d0e21e LW |
1503 | else if (count <= 0) |
| 1504 | SP -= items; | |
| 79072805 | 1505 | } |
| a0d0e21e | 1506 | else { /* Note: mark already snarfed by pp_list */ |
| 0bd48802 | 1507 | SV * const tmpstr = POPs; |
| a0d0e21e | 1508 | STRLEN len; |
| 9b877dbb | 1509 | bool isutf; |
| 2b573ace JH |
1510 | static const char oom_string_extend[] = |
| 1511 | "Out of memory during string extend"; | |
| a0d0e21e | 1512 | |
| a0d0e21e LW |
1513 | SvSetSV(TARG, tmpstr); |
| 1514 | SvPV_force(TARG, len); | |
| 9b877dbb | 1515 | isutf = DO_UTF8(TARG); |
| 8ebc5c01 | 1516 | if (count != 1) { |
| 1517 | if (count < 1) | |
| 1518 | SvCUR_set(TARG, 0); | |
| 1519 | else { | |
| c445ea15 | 1520 | const STRLEN max = (UV)count * len; |
| 2b573ace JH |
1521 | if (len > ((MEM_SIZE)~0)/count) |
| 1522 | Perl_croak(aTHX_ oom_string_extend); | |
| 1523 | MEM_WRAP_CHECK_1(max, char, oom_string_extend); | |
| 8569b9dc | 1524 | SvGROW(TARG, max + 1); |
| a0d0e21e | 1525 | repeatcpy(SvPVX(TARG) + len, SvPVX(TARG), len, count - 1); |
| b162af07 | 1526 | SvCUR_set(TARG, SvCUR(TARG) * count); |
| 7a4c00b4 | 1527 | } |
| a0d0e21e | 1528 | *SvEND(TARG) = '\0'; |
| a0d0e21e | 1529 | } |
| dfcb284a GS |
1530 | if (isutf) |
| 1531 | (void)SvPOK_only_UTF8(TARG); | |
| 1532 | else | |
| 1533 | (void)SvPOK_only(TARG); | |
| b80b6069 RH |
1534 | |
| 1535 | if (PL_op->op_private & OPpREPEAT_DOLIST) { | |
| 1536 | /* The parser saw this as a list repeat, and there | |
| 1537 | are probably several items on the stack. But we're | |
| 1538 | in scalar context, and there's no pp_list to save us | |
| 1539 | now. So drop the rest of the items -- robin@kitsite.com | |
| 1540 | */ | |
| 1541 | dMARK; | |
| 1542 | SP = MARK; | |
| 1543 | } | |
| a0d0e21e | 1544 | PUSHTARG; |
| 79072805 | 1545 | } |
| a0d0e21e | 1546 | RETURN; |
| 748a9306 | 1547 | } |
| a0d0e21e | 1548 | } |
| 79072805 | 1549 | |
| a0d0e21e LW |
1550 | PP(pp_subtract) |
| 1551 | { | |
| 97aff369 | 1552 | dVAR; dSP; dATARGET; bool useleft; tryAMAGICbin(subtr,opASSIGN); |
| 28e5dec8 JH |
1553 | useleft = USE_LEFT(TOPm1s); |
| 1554 | #ifdef PERL_PRESERVE_IVUV | |
| 7dca457a NC |
1555 | /* See comments in pp_add (in pp_hot.c) about Overflow, and how |
| 1556 | "bad things" happen if you rely on signed integers wrapping. */ | |
| 28e5dec8 JH |
1557 | SvIV_please(TOPs); |
| 1558 | if (SvIOK(TOPs)) { | |
| 1559 | /* Unless the left argument is integer in range we are going to have to | |
| 1560 | use NV maths. Hence only attempt to coerce the right argument if | |
| 1561 | we know the left is integer. */ | |
| 9c5ffd7c JH |
1562 | register UV auv = 0; |
| 1563 | bool auvok = FALSE; | |
| 7dca457a NC |
1564 | bool a_valid = 0; |
| 1565 | ||
| 28e5dec8 | 1566 | if (!useleft) { |
| 7dca457a NC |
1567 | auv = 0; |
| 1568 | a_valid = auvok = 1; | |
| 1569 | /* left operand is undef, treat as zero. */ | |
| 28e5dec8 JH |
1570 | } else { |
| 1571 | /* Left operand is defined, so is it IV? */ | |
| 1572 | SvIV_please(TOPm1s); | |
| 1573 | if (SvIOK(TOPm1s)) { | |
| 7dca457a NC |
1574 | if ((auvok = SvUOK(TOPm1s))) |
| 1575 | auv = SvUVX(TOPm1s); | |
| 1576 | else { | |
| 1b6737cc | 1577 | register const IV aiv = SvIVX(TOPm1s); |
| 7dca457a NC |
1578 | if (aiv >= 0) { |
| 1579 | auv = aiv; | |
| 1580 | auvok = 1; /* Now acting as a sign flag. */ | |
| 1581 | } else { /* 2s complement assumption for IV_MIN */ | |
| 1582 | auv = (UV)-aiv; | |
| 28e5dec8 | 1583 | } |
| 7dca457a NC |
1584 | } |
| 1585 | a_valid = 1; | |
| 1586 | } | |
| 1587 | } | |
| 1588 | if (a_valid) { | |
| 1589 | bool result_good = 0; | |
| 1590 | UV result; | |
| 1591 | register UV buv; | |
| 1592 | bool buvok = SvUOK(TOPs); | |
| 9041c2e3 | 1593 | |
| 7dca457a NC |
1594 | if (buvok) |
| 1595 | buv = SvUVX(TOPs); | |
| 1596 | else { | |
| 1b6737cc | 1597 | register const IV biv = SvIVX(TOPs); |
| 7dca457a NC |
1598 | if (biv >= 0) { |
| 1599 | buv = biv; | |
| 1600 | buvok = 1; | |
| 1601 | } else | |
| 1602 | buv = (UV)-biv; | |
| 1603 | } | |
| 1604 | /* ?uvok if value is >= 0. basically, flagged as UV if it's +ve, | |
| 602f51c4 | 1605 | else "IV" now, independent of how it came in. |
| 7dca457a NC |
1606 | if a, b represents positive, A, B negative, a maps to -A etc |
| 1607 | a - b => (a - b) | |
| 1608 | A - b => -(a + b) | |
| 1609 | a - B => (a + b) | |
| 1610 | A - B => -(a - b) | |
| 1611 | all UV maths. negate result if A negative. | |
| 1612 | subtract if signs same, add if signs differ. */ | |
| 1613 | ||
| 1614 | if (auvok ^ buvok) { | |
| 1615 | /* Signs differ. */ | |
| 1616 | result = auv + buv; | |
| 1617 | if (result >= auv) | |
| 1618 | result_good = 1; | |
| 1619 | } else { | |
| 1620 | /* Signs same */ | |
| 1621 | if (auv >= buv) { | |
| 1622 | result = auv - buv; | |
| 1623 | /* Must get smaller */ | |
| 1624 | if (result <= auv) | |
| 1625 | result_good = 1; | |
| 1626 | } else { | |
| 1627 | result = buv - auv; | |
| 1628 | if (result <= buv) { | |
| 1629 | /* result really should be -(auv-buv). as its negation | |
| 1630 | of true value, need to swap our result flag */ | |
| 1631 | auvok = !auvok; | |
| 1632 | result_good = 1; | |
| 28e5dec8 | 1633 | } |
| 28e5dec8 JH |
1634 | } |
| 1635 | } | |
| 7dca457a NC |
1636 | if (result_good) { |
| 1637 | SP--; | |
| 1638 | if (auvok) | |
| 1639 | SETu( result ); | |
| 1640 | else { | |
| 1641 | /* Negate result */ | |
| 1642 | if (result <= (UV)IV_MIN) | |
| 1643 | SETi( -(IV)result ); | |
| 1644 | else { | |
| 1645 | /* result valid, but out of range for IV. */ | |
| 1646 | SETn( -(NV)result ); | |
| 1647 | } | |
| 1648 | } | |
| 1649 | RETURN; | |
| 1650 | } /* Overflow, drop through to NVs. */ | |
| 28e5dec8 JH |
1651 | } |
| 1652 | } | |
| 1653 | #endif | |
| 7dca457a | 1654 | useleft = USE_LEFT(TOPm1s); |
| a0d0e21e | 1655 | { |
| 28e5dec8 JH |
1656 | dPOPnv; |
| 1657 | if (!useleft) { | |
| 1658 | /* left operand is undef, treat as zero - value */ | |
| 1659 | SETn(-value); | |
| 1660 | RETURN; | |
| 1661 | } | |
| 1662 | SETn( TOPn - value ); | |
| 1663 | RETURN; | |
| 79072805 | 1664 | } |
| a0d0e21e | 1665 | } |
| 79072805 | 1666 | |
| a0d0e21e LW |
1667 | PP(pp_left_shift) |
| 1668 | { | |
| 97aff369 | 1669 | dVAR; dSP; dATARGET; tryAMAGICbin(lshift,opASSIGN); |
| a0d0e21e | 1670 | { |
| 1b6737cc | 1671 | const IV shift = POPi; |
| d0ba1bd2 | 1672 | if (PL_op->op_private & HINT_INTEGER) { |
| c445ea15 | 1673 | const IV i = TOPi; |
| 972b05a9 | 1674 | SETi(i << shift); |
| d0ba1bd2 JH |
1675 | } |
| 1676 | else { | |
| c445ea15 | 1677 | const UV u = TOPu; |
| 972b05a9 | 1678 | SETu(u << shift); |
| d0ba1bd2 | 1679 | } |
| 55497cff | 1680 | RETURN; |
| 79072805 | 1681 | } |
| a0d0e21e | 1682 | } |
| 79072805 | 1683 | |
| a0d0e21e LW |
1684 | PP(pp_right_shift) |
| 1685 | { | |
| 97aff369 | 1686 | dVAR; dSP; dATARGET; tryAMAGICbin(rshift,opASSIGN); |
| a0d0e21e | 1687 | { |
| 1b6737cc | 1688 | const IV shift = POPi; |
| d0ba1bd2 | 1689 | if (PL_op->op_private & HINT_INTEGER) { |
| 0bd48802 | 1690 | const IV i = TOPi; |
| 972b05a9 | 1691 | SETi(i >> shift); |
| d0ba1bd2 JH |
1692 | } |
| 1693 | else { | |
| 0bd48802 | 1694 | const UV u = TOPu; |
| 972b05a9 | 1695 | SETu(u >> shift); |
| d0ba1bd2 | 1696 | } |
| a0d0e21e | 1697 | RETURN; |
| 93a17b20 | 1698 | } |
| 79072805 LW |
1699 | } |
| 1700 | ||
| a0d0e21e | 1701 | PP(pp_lt) |
| 79072805 | 1702 | { |
| 97aff369 | 1703 | dVAR; dSP; tryAMAGICbinSET(lt,0); |
| 28e5dec8 JH |
1704 | #ifdef PERL_PRESERVE_IVUV |
| 1705 | SvIV_please(TOPs); | |
| 1706 | if (SvIOK(TOPs)) { | |
| 1707 | SvIV_please(TOPm1s); | |
| 1708 | if (SvIOK(TOPm1s)) { | |
| 1709 | bool auvok = SvUOK(TOPm1s); | |
| 1710 | bool buvok = SvUOK(TOPs); | |
| a227d84d | 1711 | |
| 28e5dec8 | 1712 | if (!auvok && !buvok) { /* ## IV < IV ## */ |
| 1b6737cc AL |
1713 | const IV aiv = SvIVX(TOPm1s); |
| 1714 | const IV biv = SvIVX(TOPs); | |
| 28e5dec8 JH |
1715 | |
| 1716 | SP--; | |
| 1717 | SETs(boolSV(aiv < biv)); | |
| 1718 | RETURN; | |
| 1719 | } | |
| 1720 | if (auvok && buvok) { /* ## UV < UV ## */ | |
| 1b6737cc AL |
1721 | const UV auv = SvUVX(TOPm1s); |
| 1722 | const UV buv = SvUVX(TOPs); | |
| 28e5dec8 JH |
1723 | |
| 1724 | SP--; | |
| 1725 | SETs(boolSV(auv < buv)); | |
| 1726 | RETURN; | |
| 1727 | } | |
| 1728 | if (auvok) { /* ## UV < IV ## */ | |
| 1729 | UV auv; | |
| 1b6737cc | 1730 | const IV biv = SvIVX(TOPs); |
| 28e5dec8 JH |
1731 | SP--; |
| 1732 | if (biv < 0) { | |
| 1733 | /* As (a) is a UV, it's >=0, so it cannot be < */ | |
| 1734 | SETs(&PL_sv_no); | |
| 1735 | RETURN; | |
| 1736 | } | |
| 1737 | auv = SvUVX(TOPs); | |
| 28e5dec8 JH |
1738 | SETs(boolSV(auv < (UV)biv)); |
| 1739 | RETURN; | |
| 1740 | } | |
| 1741 | { /* ## IV < UV ## */ | |
| 1b6737cc | 1742 | const IV aiv = SvIVX(TOPm1s); |
| 28e5dec8 JH |
1743 | UV buv; |
| 1744 | ||
| 28e5dec8 JH |
1745 | if (aiv < 0) { |
| 1746 | /* As (b) is a UV, it's >=0, so it must be < */ | |
| 1747 | SP--; | |
| 1748 | SETs(&PL_sv_yes); | |
| 1749 | RETURN; | |
| 1750 | } | |
| 1751 | buv = SvUVX(TOPs); | |
| 1752 | SP--; | |
| 28e5dec8 JH |
1753 | SETs(boolSV((UV)aiv < buv)); |
| 1754 | RETURN; | |
| 1755 | } | |
| 1756 | } | |
| 1757 | } | |
| 1758 | #endif | |
| 30de85b6 | 1759 | #ifndef NV_PRESERVES_UV |
| 50fb3111 NC |
1760 | #ifdef PERL_PRESERVE_IVUV |
| 1761 | else | |
| 1762 | #endif | |
| 0bdaccee NC |
1763 | if (SvROK(TOPs) && !SvAMAGIC(TOPs) && SvROK(TOPm1s) && !SvAMAGIC(TOPm1s)) { |
| 1764 | SP--; | |
| 1765 | SETs(boolSV(SvRV(TOPs) < SvRV(TOPp1s))); | |
| 1766 | RETURN; | |
| 1767 | } | |
| 30de85b6 | 1768 | #endif |
| a0d0e21e | 1769 | { |
| cab190d4 JD |
1770 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
| 1771 | dPOPTOPnnrl; | |
| 1772 | if (Perl_isnan(left) || Perl_isnan(right)) | |
| 1773 | RETSETNO; | |
| 1774 | SETs(boolSV(left < right)); | |
| 1775 | #else | |
| a0d0e21e | 1776 | dPOPnv; |
| 54310121 | 1777 | SETs(boolSV(TOPn < value)); |
| cab190d4 | 1778 | #endif |
| a0d0e21e | 1779 | RETURN; |
| 79072805 | 1780 | } |
| a0d0e21e | 1781 | } |
| 79072805 | 1782 | |
| a0d0e21e LW |
1783 | PP(pp_gt) |
| 1784 | { | |
| 97aff369 | 1785 | dVAR; dSP; tryAMAGICbinSET(gt,0); |
| 28e5dec8 JH |
1786 | #ifdef PERL_PRESERVE_IVUV |
| 1787 | SvIV_please(TOPs); | |
| 1788 | if (SvIOK(TOPs)) { | |
| 1789 | SvIV_please(TOPm1s); | |
| 1790 | if (SvIOK(TOPm1s)) { | |
| 1791 | bool auvok = SvUOK(TOPm1s); | |
| 1792 | bool buvok = SvUOK(TOPs); | |
| a227d84d | 1793 | |
| 28e5dec8 | 1794 | if (!auvok && !buvok) { /* ## IV > IV ## */ |
| 1b6737cc AL |
1795 | const IV aiv = SvIVX(TOPm1s); |
| 1796 | const IV biv = SvIVX(TOPs); | |
| 1797 | ||
| 28e5dec8 JH |
1798 | SP--; |
| 1799 | SETs(boolSV(aiv > biv)); | |
| 1800 | RETURN; | |
| 1801 | } | |
| 1802 | if (auvok && buvok) { /* ## UV > UV ## */ | |
| 1b6737cc AL |
1803 | const UV auv = SvUVX(TOPm1s); |
| 1804 | const UV buv = SvUVX(TOPs); | |
| 28e5dec8 JH |
1805 | |
| 1806 | SP--; | |
| 1807 | SETs(boolSV(auv > buv)); | |
| 1808 | RETURN; | |
| 1809 | } | |
| 1810 | if (auvok) { /* ## UV > IV ## */ | |
| 1811 | UV auv; | |
| 1b6737cc AL |
1812 | const IV biv = SvIVX(TOPs); |
| 1813 | ||
| 28e5dec8 JH |
1814 | SP--; |
| 1815 | if (biv < 0) { | |
| 1816 | /* As (a) is a UV, it's >=0, so it must be > */ | |
| 1817 | SETs(&PL_sv_yes); | |
| 1818 | RETURN; | |
| 1819 | } | |
| 1820 | auv = SvUVX(TOPs); | |
| 28e5dec8 JH |
1821 | SETs(boolSV(auv > (UV)biv)); |
| 1822 | RETURN; | |
| 1823 | } | |
| 1824 | { /* ## IV > UV ## */ | |
| 1b6737cc | 1825 | const IV aiv = SvIVX(TOPm1s); |
| 28e5dec8 JH |
1826 | UV buv; |
| 1827 | ||
| 28e5dec8 JH |
1828 | if (aiv < 0) { |
| 1829 | /* As (b) is a UV, it's >=0, so it cannot be > */ | |
| 1830 | SP--; | |
| 1831 | SETs(&PL_sv_no); | |
| 1832 | RETURN; | |
| 1833 | } | |
| 1834 | buv = SvUVX(TOPs); | |
| 1835 | SP--; | |
| 28e5dec8 JH |
1836 | SETs(boolSV((UV)aiv > buv)); |
| 1837 | RETURN; | |
| 1838 | } | |
| 1839 | } | |
| 1840 | } | |
| 1841 | #endif | |
| 30de85b6 | 1842 | #ifndef NV_PRESERVES_UV |
| 50fb3111 NC |
1843 | #ifdef PERL_PRESERVE_IVUV |
| 1844 | else | |
| 1845 | #endif | |
| 0bdaccee | 1846 | if (SvROK(TOPs) && !SvAMAGIC(TOPs) && SvROK(TOPm1s) && !SvAMAGIC(TOPm1s)) { |
| 30de85b6 NC |
1847 | SP--; |
| 1848 | SETs(boolSV(SvRV(TOPs) > SvRV(TOPp1s))); | |
| 1849 | RETURN; | |
| 1850 | } | |
| 1851 | #endif | |
| a0d0e21e | 1852 | { |
| cab190d4 JD |
1853 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
| 1854 | dPOPTOPnnrl; | |
| 1855 | if (Perl_isnan(left) || Perl_isnan(right)) | |
| 1856 | RETSETNO; | |
| 1857 | SETs(boolSV(left > right)); | |
| 1858 | #else | |
| a0d0e21e | 1859 | dPOPnv; |
| 54310121 | 1860 | SETs(boolSV(TOPn > value)); |
| cab190d4 | 1861 | #endif |
| a0d0e21e | 1862 | RETURN; |
| 79072805 | 1863 | } |
| a0d0e21e LW |
1864 | } |
| 1865 | ||
| 1866 | PP(pp_le) | |
| 1867 | { | |
| 97aff369 | 1868 | dVAR; dSP; tryAMAGICbinSET(le,0); |
| 28e5dec8 JH |
1869 | #ifdef PERL_PRESERVE_IVUV |
| 1870 | SvIV_please(TOPs); | |
| 1871 | if (SvIOK(TOPs)) { | |
| 1872 | SvIV_please(TOPm1s); | |
| 1873 | if (SvIOK(TOPm1s)) { | |
| 1874 | bool auvok = SvUOK(TOPm1s); | |
| 1875 | bool buvok = SvUOK(TOPs); | |
| a227d84d | 1876 | |
| 28e5dec8 | 1877 | if (!auvok && !buvok) { /* ## IV <= IV ## */ |
| 1b6737cc AL |
1878 | const IV aiv = SvIVX(TOPm1s); |
| 1879 | const IV biv = SvIVX(TOPs); | |
| 28e5dec8 JH |
1880 | |
| 1881 | SP--; | |
| 1882 | SETs(boolSV(aiv <= biv)); | |
| 1883 | RETURN; | |
| 1884 | } | |
| 1885 | if (auvok && buvok) { /* ## UV <= UV ## */ | |
| 1886 | UV auv = SvUVX(TOPm1s); | |
| 1887 | UV buv = SvUVX(TOPs); | |
| 1888 | ||
| 1889 | SP--; | |
| 1890 | SETs(boolSV(auv <= buv)); | |
| 1891 | RETURN; | |
| 1892 | } | |
| 1893 | if (auvok) { /* ## UV <= IV ## */ | |
| 1894 | UV auv; | |
| 1b6737cc AL |
1895 | const IV biv = SvIVX(TOPs); |
| 1896 | ||
| 28e5dec8 JH |
1897 | SP--; |
| 1898 | if (biv < 0) { | |
| 1899 | /* As (a) is a UV, it's >=0, so a cannot be <= */ | |
| 1900 | SETs(&PL_sv_no); | |
| 1901 | RETURN; | |
| 1902 | } | |
| 1903 | auv = SvUVX(TOPs); | |
| 28e5dec8 JH |
1904 | SETs(boolSV(auv <= (UV)biv)); |
| 1905 | RETURN; | |
| 1906 | } | |
| 1907 | { /* ## IV <= UV ## */ | |
| 1b6737cc | 1908 | const IV aiv = SvIVX(TOPm1s); |
| 28e5dec8 | 1909 | UV buv; |
| 1b6737cc | 1910 | |
| 28e5dec8 JH |
1911 | if (aiv < 0) { |
| 1912 | /* As (b) is a UV, it's >=0, so a must be <= */ | |
| 1913 | SP--; | |
| 1914 | SETs(&PL_sv_yes); | |
| 1915 | RETURN; | |
| 1916 | } | |
| 1917 | buv = SvUVX(TOPs); | |
| 1918 | SP--; | |
| 28e5dec8 JH |
1919 | SETs(boolSV((UV)aiv <= buv)); |
| 1920 | RETURN; | |
| 1921 | } | |
| 1922 | } | |
| 1923 | } | |
| 1924 | #endif | |
| 30de85b6 | 1925 | #ifndef NV_PRESERVES_UV |
| 50fb3111 NC |
1926 | #ifdef PERL_PRESERVE_IVUV |
| 1927 | else | |
| 1928 | #endif | |
| 0bdaccee | 1929 | if (SvROK(TOPs) && !SvAMAGIC(TOPs) && SvROK(TOPm1s) && !SvAMAGIC(TOPm1s)) { |
| 30de85b6 NC |
1930 | SP--; |
| 1931 | SETs(boolSV(SvRV(TOPs) <= SvRV(TOPp1s))); | |
| 1932 | RETURN; | |
| 1933 | } | |
| 1934 | #endif | |
| a0d0e21e | 1935 | { |
| cab190d4 JD |
1936 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
| 1937 | dPOPTOPnnrl; | |
| 1938 | if (Perl_isnan(left) || Perl_isnan(right)) | |
| 1939 | RETSETNO; | |
| 1940 | SETs(boolSV(left <= right)); | |
| 1941 | #else | |
| a0d0e21e | 1942 | dPOPnv; |
| 54310121 | 1943 | SETs(boolSV(TOPn <= value)); |
| cab190d4 | 1944 | #endif |
| a0d0e21e | 1945 | RETURN; |
| 79072805 | 1946 | } |
| a0d0e21e LW |
1947 | } |
| 1948 | ||
| 1949 | PP(pp_ge) | |
| 1950 | { | |
| 97aff369 | 1951 | dVAR; dSP; tryAMAGICbinSET(ge,0); |
| 28e5dec8 JH |
1952 | #ifdef PERL_PRESERVE_IVUV |
| 1953 | SvIV_please(TOPs); | |
| 1954 | if (SvIOK(TOPs)) { | |
| 1955 | SvIV_please(TOPm1s); | |
| 1956 | if (SvIOK(TOPm1s)) { | |
| 1957 | bool auvok = SvUOK(TOPm1s); | |
| 1958 | bool buvok = SvUOK(TOPs); | |
| a227d84d | 1959 | |
| 28e5dec8 | 1960 | if (!auvok && !buvok) { /* ## IV >= IV ## */ |
| 1b6737cc AL |
1961 | const IV aiv = SvIVX(TOPm1s); |
| 1962 | const IV biv = SvIVX(TOPs); | |
| 1963 | ||
| 28e5dec8 JH |
1964 | SP--; |
| 1965 | SETs(boolSV(aiv >= biv)); | |
| 1966 | RETURN; | |
| 1967 | } | |
| 1968 | if (auvok && buvok) { /* ## UV >= UV ## */ | |
| 1b6737cc AL |
1969 | const UV auv = SvUVX(TOPm1s); |
| 1970 | const UV buv = SvUVX(TOPs); | |
| 1971 | ||
| 28e5dec8 JH |
1972 | SP--; |
| 1973 | SETs(boolSV(auv >= buv)); | |
| 1974 | RETURN; | |
| 1975 | } | |
| 1976 | if (auvok) { /* ## UV >= IV ## */ | |
| 1977 | UV auv; | |
| 1b6737cc AL |
1978 | const IV biv = SvIVX(TOPs); |
| 1979 | ||
| 28e5dec8 JH |
1980 | SP--; |
| 1981 | if (biv < 0) { | |
| 1982 | /* As (a) is a UV, it's >=0, so it must be >= */ | |
| 1983 | SETs(&PL_sv_yes); | |
| 1984 | RETURN; | |
| 1985 | } | |
| 1986 | auv = SvUVX(TOPs); | |
| 28e5dec8 JH |
1987 | SETs(boolSV(auv >= (UV)biv)); |
| 1988 | RETURN; | |
| 1989 | } | |
| 1990 | { /* ## IV >= UV ## */ | |
| 1b6737cc | 1991 | const IV aiv = SvIVX(TOPm1s); |
| 28e5dec8 | 1992 | UV buv; |
| 1b6737cc | 1993 | |
| 28e5dec8 JH |
1994 | if (aiv < 0) { |
| 1995 | /* As (b) is a UV, it's >=0, so a cannot be >= */ | |
| 1996 | SP--; | |
| 1997 | SETs(&PL_sv_no); | |
| 1998 | RETURN; | |
| 1999 | } | |
| 2000 | buv = SvUVX(TOPs); | |
| 2001 | SP--; | |
| 28e5dec8 JH |
2002 | SETs(boolSV((UV)aiv >= buv)); |
| 2003 | RETURN; | |
| 2004 | } | |
| 2005 | } | |
| 2006 | } | |
| 2007 | #endif | |
| 30de85b6 | 2008 | #ifndef NV_PRESERVES_UV |
| 50fb3111 NC |
2009 | #ifdef PERL_PRESERVE_IVUV |
| 2010 | else | |
| 2011 | #endif | |
| 0bdaccee | 2012 | if (SvROK(TOPs) && !SvAMAGIC(TOPs) && SvROK(TOPm1s) && !SvAMAGIC(TOPm1s)) { |
| 30de85b6 NC |
2013 | SP--; |
| 2014 | SETs(boolSV(SvRV(TOPs) >= SvRV(TOPp1s))); | |
| 2015 | RETURN; | |
| 2016 | } | |
| 2017 | #endif | |
| a0d0e21e | 2018 | { |
| cab190d4 JD |
2019 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
| 2020 | dPOPTOPnnrl; | |
| 2021 | if (Perl_isnan(left) || Perl_isnan(right)) | |
| 2022 | RETSETNO; | |
| 2023 | SETs(boolSV(left >= right)); | |
| 2024 | #else | |
| a0d0e21e | 2025 | dPOPnv; |
| 54310121 | 2026 | SETs(boolSV(TOPn >= value)); |
| cab190d4 | 2027 | #endif |
| a0d0e21e | 2028 | RETURN; |
| 79072805 | 2029 | } |
| a0d0e21e | 2030 | } |
| 79072805 | 2031 | |
| a0d0e21e LW |
2032 | PP(pp_ne) |
| 2033 | { | |
| 97aff369 | 2034 | dVAR; dSP; tryAMAGICbinSET(ne,0); |
| 3bb2c415 | 2035 | #ifndef NV_PRESERVES_UV |
| 0bdaccee | 2036 | if (SvROK(TOPs) && !SvAMAGIC(TOPs) && SvROK(TOPm1s) && !SvAMAGIC(TOPm1s)) { |
| e61d22ef NC |
2037 | SP--; |
| 2038 | SETs(boolSV(SvRV(TOPs) != SvRV(TOPp1s))); | |
| 3bb2c415 JH |
2039 | RETURN; |
| 2040 | } | |
| 2041 | #endif | |
| 28e5dec8 JH |
2042 | #ifdef PERL_PRESERVE_IVUV |
| 2043 | SvIV_please(TOPs); | |
| 2044 | if (SvIOK(TOPs)) { | |
| 2045 | SvIV_please(TOPm1s); | |
| 2046 | if (SvIOK(TOPm1s)) { | |
| 0bd48802 AL |
2047 | const bool auvok = SvUOK(TOPm1s); |
| 2048 | const bool buvok = SvUOK(TOPs); | |
| a227d84d | 2049 | |
| 30de85b6 NC |
2050 | if (auvok == buvok) { /* ## IV == IV or UV == UV ## */ |
| 2051 | /* Casting IV to UV before comparison isn't going to matter | |
| 2052 | on 2s complement. On 1s complement or sign&magnitude | |
| 2053 | (if we have any of them) it could make negative zero | |
| 2054 | differ from normal zero. As I understand it. (Need to | |
| 2055 | check - is negative zero implementation defined behaviour | |
| 2056 | anyway?). NWC */ | |
| 1b6737cc AL |
2057 | const UV buv = SvUVX(POPs); |
| 2058 | const UV auv = SvUVX(TOPs); | |
| 2059 | ||
| 28e5dec8 JH |
2060 | SETs(boolSV(auv != buv)); |
| 2061 | RETURN; | |
| 2062 | } | |
| 2063 | { /* ## Mixed IV,UV ## */ | |
| 2064 | IV iv; | |
| 2065 | UV uv; | |
| 2066 | ||
| 2067 | /* != is commutative so swap if needed (save code) */ | |
| 2068 | if (auvok) { | |
| 2069 | /* swap. top of stack (b) is the iv */ | |
| 2070 | iv = SvIVX(TOPs); | |
| 2071 | SP--; | |
| 2072 | if (iv < 0) { | |
| 2073 | /* As (a) is a UV, it's >0, so it cannot be == */ | |
| 2074 | SETs(&PL_sv_yes); | |
| 2075 | RETURN; | |
| 2076 | } | |
| 2077 | uv = SvUVX(TOPs); | |
| 2078 | } else { | |
| 2079 | iv = SvIVX(TOPm1s); | |
| 2080 | SP--; | |
| 2081 | if (iv < 0) { | |
| 2082 | /* As (b) is a UV, it's >0, so it cannot be == */ | |
| 2083 | SETs(&PL_sv_yes); | |
| 2084 | RETURN; | |
| 2085 | } | |
| 2086 | uv = SvUVX(*(SP+1)); /* Do I want TOPp1s() ? */ | |
| 2087 | } | |
| 28e5dec8 JH |
2088 | SETs(boolSV((UV)iv != uv)); |
| 2089 | RETURN; | |
| 2090 | } | |
| 2091 | } | |
| 2092 | } | |
| 2093 | #endif | |
| a0d0e21e | 2094 | { |
| cab190d4 JD |
2095 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
| 2096 | dPOPTOPnnrl; | |
| 2097 | if (Perl_isnan(left) || Perl_isnan(right)) | |
| 2098 | RETSETYES; | |
| 2099 | SETs(boolSV(left != right)); | |
| 2100 | #else | |
| a0d0e21e | 2101 | dPOPnv; |
| 54310121 | 2102 | SETs(boolSV(TOPn != value)); |
| cab190d4 | 2103 | #endif |
| a0d0e21e LW |
2104 | RETURN; |
| 2105 | } | |
| 79072805 LW |
2106 | } |
| 2107 | ||
| a0d0e21e | 2108 | PP(pp_ncmp) |
| 79072805 | 2109 | { |
| 97aff369 | 2110 | dVAR; dSP; dTARGET; tryAMAGICbin(ncmp,0); |
| d8c7644e | 2111 | #ifndef NV_PRESERVES_UV |
| 0bdaccee | 2112 | if (SvROK(TOPs) && !SvAMAGIC(TOPs) && SvROK(TOPm1s) && !SvAMAGIC(TOPm1s)) { |
| 0bd48802 AL |
2113 | const UV right = PTR2UV(SvRV(POPs)); |
| 2114 | const UV left = PTR2UV(SvRV(TOPs)); | |
| e61d22ef | 2115 | SETi((left > right) - (left < right)); |
| d8c7644e JH |
2116 | RETURN; |
| 2117 | } | |
| 2118 | #endif | |
| 28e5dec8 JH |
2119 | #ifdef PERL_PRESERVE_IVUV |
| 2120 | /* Fortunately it seems NaN isn't IOK */ | |
| 2121 | SvIV_please(TOPs); | |
| 2122 | if (SvIOK(TOPs)) { | |
| 2123 | SvIV_please(TOPm1s); | |
| 2124 | if (SvIOK(TOPm1s)) { | |
| 1b6737cc AL |
2125 | const bool leftuvok = SvUOK(TOPm1s); |
| 2126 | const bool rightuvok = SvUOK(TOPs); | |
| 28e5dec8 JH |
2127 | I32 value; |
| 2128 | if (!leftuvok && !rightuvok) { /* ## IV <=> IV ## */ | |
| 1b6737cc AL |
2129 | const IV leftiv = SvIVX(TOPm1s); |
| 2130 | const IV rightiv = SvIVX(TOPs); | |
| 28e5dec8 JH |
2131 | |
| 2132 | if (leftiv > rightiv) | |
| 2133 | value = 1; | |
| 2134 | else if (leftiv < rightiv) | |
| 2135 | value = -1; | |
| 2136 | else | |
| 2137 | value = 0; | |
| 2138 | } else if (leftuvok && rightuvok) { /* ## UV <=> UV ## */ | |
| 1b6737cc AL |
2139 | const UV leftuv = SvUVX(TOPm1s); |
| 2140 | const UV rightuv = SvUVX(TOPs); | |
| 28e5dec8 JH |
2141 | |
| 2142 | if (leftuv > rightuv) | |
| 2143 | value = 1; | |
| 2144 | else if (leftuv < rightuv) | |
| 2145 | value = -1; | |
| 2146 | else | |
| 2147 | value = 0; | |
| 2148 | } else if (leftuvok) { /* ## UV <=> IV ## */ | |
| 1b6737cc | 2149 | const IV rightiv = SvIVX(TOPs); |
| 28e5dec8 JH |
2150 | if (rightiv < 0) { |
| 2151 | /* As (a) is a UV, it's >=0, so it cannot be < */ | |
| 2152 | value = 1; | |
| 2153 | } else { | |
| 1b6737cc | 2154 | const UV leftuv = SvUVX(TOPm1s); |
| 83bac5dd | 2155 | if (leftuv > (UV)rightiv) { |
| 28e5dec8 JH |
2156 | value = 1; |
| 2157 | } else if (leftuv < (UV)rightiv) { | |
| 2158 | value = -1; | |
| 2159 | } else { | |
| 2160 | value = 0; | |
| 2161 | } | |
| 2162 | } | |
| 2163 | } else { /* ## IV <=> UV ## */ | |
| 1b6737cc | 2164 | const IV leftiv = SvIVX(TOPm1s); |
| 28e5dec8 JH |
2165 | if (leftiv < 0) { |
| 2166 | /* As (b) is a UV, it's >=0, so it must be < */ | |
| 2167 | value = -1; | |
| 2168 | } else { | |
| 1b6737cc | 2169 | const UV rightuv = SvUVX(TOPs); |
| 83bac5dd | 2170 | if ((UV)leftiv > rightuv) { |
| 28e5dec8 | 2171 | value = 1; |
| 83bac5dd | 2172 | } else if ((UV)leftiv < rightuv) { |
| 28e5dec8 JH |
2173 | value = -1; |
| 2174 | } else { | |
| 2175 | value = 0; | |
| 2176 | } | |
| 2177 | } | |
| 2178 | } | |
| 2179 | SP--; | |
| 2180 | SETi(value); | |
| 2181 | RETURN; | |
| 2182 | } | |
| 2183 | } | |
| 2184 | #endif | |
| a0d0e21e LW |
2185 | { |
| 2186 | dPOPTOPnnrl; | |
| 2187 | I32 value; | |
| 79072805 | 2188 | |
| a3540c92 | 2189 | #ifdef Perl_isnan |
| 1ad04cfd JH |
2190 | if (Perl_isnan(left) || Perl_isnan(right)) { |
| 2191 | SETs(&PL_sv_undef); | |
| 2192 | RETURN; | |
| 2193 | } | |
| 2194 | value = (left > right) - (left < right); | |
| 2195 | #else | |
| ff0cee69 | 2196 | if (left == right) |
| a0d0e21e | 2197 | value = 0; |
| a0d0e21e LW |
2198 | else if (left < right) |
| 2199 | value = -1; | |
| 44a8e56a | 2200 | else if (left > right) |
| 2201 | value = 1; | |
| 2202 | else { | |
| 3280af22 | 2203 | SETs(&PL_sv_undef); |
| 44a8e56a | 2204 | RETURN; |
| 2205 | } | |
| 1ad04cfd | 2206 | #endif |
| a0d0e21e LW |
2207 | SETi(value); |
| 2208 | RETURN; | |
| 79072805 | 2209 | } |
| a0d0e21e | 2210 | } |
| 79072805 | 2211 | |
| afd9910b | 2212 | PP(pp_sle) |
| a0d0e21e | 2213 | { |
| 97aff369 | 2214 | dVAR; dSP; |
| 79072805 | 2215 | |
| afd9910b NC |
2216 | int amg_type = sle_amg; |
| 2217 | int multiplier = 1; | |
| 2218 | int rhs = 1; | |
| 79072805 | 2219 | |
| afd9910b NC |
2220 | switch (PL_op->op_type) { |
| 2221 | case OP_SLT: | |
| 2222 | amg_type = slt_amg; | |
| 2223 | /* cmp < 0 */ | |
| 2224 | rhs = 0; | |
| 2225 | break; | |
| 2226 | case OP_SGT: | |
| 2227 | amg_type = sgt_amg; | |
| 2228 | /* cmp > 0 */ | |
| 2229 | multiplier = -1; | |
| 2230 | rhs = 0; | |
| 2231 | break; | |
| 2232 | case OP_SGE: | |
| 2233 | amg_type = sge_amg; | |
| 2234 | /* cmp >= 0 */ | |
| 2235 | multiplier = -1; | |
| 2236 | break; | |
| 79072805 | 2237 | } |
| 79072805 | 2238 | |
| afd9910b | 2239 | tryAMAGICbinSET_var(amg_type,0); |
| a0d0e21e LW |
2240 | { |
| 2241 | dPOPTOPssrl; | |
| 1b6737cc | 2242 | const int cmp = (IN_LOCALE_RUNTIME |
| bbce6d69 | 2243 | ? sv_cmp_locale(left, right) |
| 2244 | : sv_cmp(left, right)); | |
| afd9910b | 2245 | SETs(boolSV(cmp * multiplier < rhs)); |
| a0d0e21e LW |
2246 | RETURN; |
| 2247 | } | |
| 2248 | } | |
| 79072805 | 2249 | |
| 36477c24 | 2250 | PP(pp_seq) |
| 2251 | { | |
| 97aff369 | 2252 | dVAR; dSP; tryAMAGICbinSET(seq,0); |
| 36477c24 | 2253 | { |
| 2254 | dPOPTOPssrl; | |
| 54310121 | 2255 | SETs(boolSV(sv_eq(left, right))); |
| a0d0e21e LW |
2256 | RETURN; |
| 2257 | } | |
| 2258 | } | |
| 79072805 | 2259 | |
| a0d0e21e | 2260 | PP(pp_sne) |
| 79072805 | 2261 | { |
| 97aff369 | 2262 | dVAR; dSP; tryAMAGICbinSET(sne,0); |
| a0d0e21e LW |
2263 | { |
| 2264 | dPOPTOPssrl; | |
| 54310121 | 2265 | SETs(boolSV(!sv_eq(left, right))); |
| a0d0e21e | 2266 | RETURN; |
| 463ee0b2 | 2267 | } |
| 79072805 LW |
2268 | } |
| 2269 | ||
| a0d0e21e | 2270 | PP(pp_scmp) |
| 79072805 | 2271 | { |
| 97aff369 | 2272 | dVAR; dSP; dTARGET; tryAMAGICbin(scmp,0); |
| a0d0e21e LW |
2273 | { |
| 2274 | dPOPTOPssrl; | |
| 1b6737cc | 2275 | const int cmp = (IN_LOCALE_RUNTIME |
| bbce6d69 | 2276 | ? sv_cmp_locale(left, right) |
| 2277 | : sv_cmp(left, right)); | |
| 2278 | SETi( cmp ); | |
| a0d0e21e LW |
2279 | RETURN; |
| 2280 | } | |
| 2281 | } | |
| 79072805 | 2282 | |
| 55497cff | 2283 | PP(pp_bit_and) |
| 2284 | { | |
| 97aff369 | 2285 | dVAR; dSP; dATARGET; tryAMAGICbin(band,opASSIGN); |
| a0d0e21e LW |
2286 | { |
| 2287 | dPOPTOPssrl; | |
| 5b295bef RD |
2288 | SvGETMAGIC(left); |
| 2289 | SvGETMAGIC(right); | |
| 4633a7c4 | 2290 | if (SvNIOKp(left) || SvNIOKp(right)) { |
| d0ba1bd2 | 2291 | if (PL_op->op_private & HINT_INTEGER) { |
| 1b6737cc | 2292 | const IV i = SvIV_nomg(left) & SvIV_nomg(right); |
| 972b05a9 | 2293 | SETi(i); |
| d0ba1bd2 JH |
2294 | } |
| 2295 | else { | |
| 1b6737cc | 2296 | const UV u = SvUV_nomg(left) & SvUV_nomg(right); |
| 972b05a9 | 2297 | SETu(u); |
| d0ba1bd2 | 2298 | } |
| a0d0e21e LW |
2299 | } |
| 2300 | else { | |
| 533c011a | 2301 | do_vop(PL_op->op_type, TARG, left, right); |
| a0d0e21e LW |
2302 | SETTARG; |
| 2303 | } | |
| 2304 | RETURN; | |
| 2305 | } | |
| 2306 | } | |
| 79072805 | 2307 | |
| a0d0e21e LW |
2308 | PP(pp_bit_or) |
| 2309 | { | |
| 3658c1f1 NC |
2310 | dVAR; dSP; dATARGET; |
| 2311 | const int op_type = PL_op->op_type; | |
| 2312 | ||
| 2313 | tryAMAGICbin_var((op_type == OP_BIT_OR ? bor_amg : bxor_amg), opASSIGN); | |
| a0d0e21e LW |
2314 | { |
| 2315 | dPOPTOPssrl; | |
| 5b295bef RD |
2316 | SvGETMAGIC(left); |
| 2317 | SvGETMAGIC(right); | |
| 4633a7c4 | 2318 | if (SvNIOKp(left) || SvNIOKp(right)) { |
| d0ba1bd2 | 2319 | if (PL_op->op_private & HINT_INTEGER) { |
| 3658c1f1 NC |
2320 | const IV l = (USE_LEFT(left) ? SvIV_nomg(left) : 0); |
| 2321 | const IV r = SvIV_nomg(right); | |
| 2322 | const IV result = op_type == OP_BIT_OR ? (l | r) : (l ^ r); | |
| 2323 | SETi(result); | |
| d0ba1bd2 JH |
2324 | } |
| 2325 | else { | |
| 3658c1f1 NC |
2326 | const UV l = (USE_LEFT(left) ? SvUV_nomg(left) : 0); |
| 2327 | const UV r = SvUV_nomg(right); | |
| 2328 | const UV result = op_type == OP_BIT_OR ? (l | r) : (l ^ r); | |
| 2329 | SETu(result); | |
| d0ba1bd2 | 2330 | } |
| a0d0e21e LW |
2331 | } |
| 2332 | else { | |
| 3658c1f1 | 2333 | do_vop(op_type, TARG, left, right); |
| a0d0e21e LW |
2334 | SETTARG; |
| 2335 | } | |
| 2336 | RETURN; | |
| 79072805 | 2337 | } |
| a0d0e21e | 2338 | } |
| 79072805 | 2339 | |
| a0d0e21e LW |
2340 | PP(pp_negate) |
| 2341 | { | |
| 97aff369 | 2342 | dVAR; dSP; dTARGET; tryAMAGICun(neg); |
| a0d0e21e LW |
2343 | { |
| 2344 | dTOPss; | |
| 1b6737cc | 2345 | const int flags = SvFLAGS(sv); |
| 5b295bef | 2346 | SvGETMAGIC(sv); |
| 28e5dec8 JH |
2347 | if ((flags & SVf_IOK) || ((flags & (SVp_IOK | SVp_NOK)) == SVp_IOK)) { |
| 2348 | /* It's publicly an integer, or privately an integer-not-float */ | |
| 2349 | oops_its_an_int: | |
| 9b0e499b GS |
2350 | if (SvIsUV(sv)) { |
| 2351 | if (SvIVX(sv) == IV_MIN) { | |
| 28e5dec8 | 2352 | /* 2s complement assumption. */ |
| 9b0e499b GS |
2353 | SETi(SvIVX(sv)); /* special case: -((UV)IV_MAX+1) == IV_MIN */ |
| 2354 | RETURN; | |
| 2355 | } | |
| 2356 | else if (SvUVX(sv) <= IV_MAX) { | |
| beccb14c | 2357 | SETi(-SvIVX(sv)); |
| 9b0e499b GS |
2358 | RETURN; |
| 2359 | } | |
| 2360 | } | |
| 2361 | else if (SvIVX(sv) != IV_MIN) { | |
| 2362 | SETi(-SvIVX(sv)); | |
| 2363 | RETURN; | |
| 2364 | } | |
| 28e5dec8 JH |
2365 | #ifdef PERL_PRESERVE_IVUV |
| 2366 | else { | |
| 2367 | SETu((UV)IV_MIN); | |
| 2368 | RETURN; | |
| 2369 | } | |
| 2370 | #endif | |
| 9b0e499b GS |
2371 | } |
| 2372 | if (SvNIOKp(sv)) | |
| a0d0e21e | 2373 | SETn(-SvNV(sv)); |
| 4633a7c4 | 2374 | else if (SvPOKp(sv)) { |
| a0d0e21e | 2375 | STRLEN len; |
| c445ea15 | 2376 | const char * const s = SvPV_const(sv, len); |
| bbce6d69 | 2377 | if (isIDFIRST(*s)) { |
| a0d0e21e LW |
2378 | sv_setpvn(TARG, "-", 1); |
| 2379 | sv_catsv(TARG, sv); | |
| 79072805 | 2380 | } |
| a0d0e21e LW |
2381 | else if (*s == '+' || *s == '-') { |
| 2382 | sv_setsv(TARG, sv); | |
| 2383 | *SvPV_force(TARG, len) = *s == '-' ? '+' : '-'; | |
| 79072805 | 2384 | } |
| 8eb28a70 JH |
2385 | else if (DO_UTF8(sv)) { |
| 2386 | SvIV_please(sv); | |
| 2387 | if (SvIOK(sv)) | |
| 2388 | goto oops_its_an_int; | |
| 2389 | if (SvNOK(sv)) | |
| 2390 | sv_setnv(TARG, -SvNV(sv)); | |
| 2391 | else { | |
| 2392 | sv_setpvn(TARG, "-", 1); | |
| 2393 | sv_catsv(TARG, sv); | |
| 2394 | } | |
| 834a4ddd | 2395 | } |
| 28e5dec8 | 2396 | else { |
| 8eb28a70 JH |
2397 | SvIV_please(sv); |
| 2398 | if (SvIOK(sv)) | |
| 2399 | goto oops_its_an_int; | |
| 2400 | sv_setnv(TARG, -SvNV(sv)); | |
| 28e5dec8 | 2401 | } |
| a0d0e21e | 2402 | SETTARG; |
| 79072805 | 2403 | } |
| 4633a7c4 LW |
2404 | else |
| 2405 | SETn(-SvNV(sv)); | |
| 79072805 | 2406 | } |
| a0d0e21e | 2407 | RETURN; |
| 79072805 LW |
2408 | } |
| 2409 | ||
| a0d0e21e | 2410 | PP(pp_not) |
| 79072805 | 2411 | { |
| 97aff369 | 2412 | dVAR; dSP; tryAMAGICunSET(not); |
| 3280af22 | 2413 | *PL_stack_sp = boolSV(!SvTRUE(*PL_stack_sp)); |
| a0d0e21e | 2414 | return NORMAL; |
| 79072805 LW |
2415 | } |
| 2416 | ||
| a0d0e21e | 2417 | PP(pp_complement) |
| 79072805 | 2418 | { |
| 97aff369 | 2419 | dVAR; dSP; dTARGET; tryAMAGICun(compl); |
| a0d0e21e LW |
2420 | { |
| 2421 | dTOPss; | |
| 5b295bef | 2422 | SvGETMAGIC(sv); |
| 4633a7c4 | 2423 | if (SvNIOKp(sv)) { |
| d0ba1bd2 | 2424 | if (PL_op->op_private & HINT_INTEGER) { |
| 1b6737cc | 2425 | const IV i = ~SvIV_nomg(sv); |
| 972b05a9 | 2426 | SETi(i); |
| d0ba1bd2 JH |
2427 | } |
| 2428 | else { | |
| 1b6737cc | 2429 | const UV u = ~SvUV_nomg(sv); |
| 972b05a9 | 2430 | SETu(u); |
| d0ba1bd2 | 2431 | } |
| a0d0e21e LW |
2432 | } |
| 2433 | else { | |
| 51723571 | 2434 | register U8 *tmps; |
| 55497cff | 2435 | register I32 anum; |
| a0d0e21e LW |
2436 | STRLEN len; |
| 2437 | ||
| 10516c54 | 2438 | (void)SvPV_nomg_const(sv,len); /* force check for uninit var */ |
| 891f9566 | 2439 | sv_setsv_nomg(TARG, sv); |
| 51723571 | 2440 | tmps = (U8*)SvPV_force(TARG, len); |
| a0d0e21e | 2441 | anum = len; |
| 1d68d6cd | 2442 | if (SvUTF8(TARG)) { |
| a1ca4561 | 2443 | /* Calculate exact length, let's not estimate. */ |
| 1d68d6cd | 2444 | STRLEN targlen = 0; |
| ba210ebe | 2445 | STRLEN l; |
| a1ca4561 YST |
2446 | UV nchar = 0; |
| 2447 | UV nwide = 0; | |
| 01f6e806 | 2448 | U8 * const send = tmps + len; |
| 74d49cd0 TS |
2449 | U8 * const origtmps = tmps; |
| 2450 | const UV utf8flags = UTF8_ALLOW_ANYUV; | |
| 1d68d6cd | 2451 | |
| 1d68d6cd | 2452 | while (tmps < send) { |
| 74d49cd0 TS |
2453 | const UV c = utf8n_to_uvchr(tmps, send-tmps, &l, utf8flags); |
| 2454 | tmps += l; | |
| 5bbb0b5a | 2455 | targlen += UNISKIP(~c); |
| a1ca4561 YST |
2456 | nchar++; |
| 2457 | if (c > 0xff) | |
| 2458 | nwide++; | |
| 1d68d6cd SC |
2459 | } |
| 2460 | ||
| 2461 | /* Now rewind strings and write them. */ | |
| 74d49cd0 | 2462 | tmps = origtmps; |
| a1ca4561 YST |
2463 | |
| 2464 | if (nwide) { | |
| 01f6e806 AL |
2465 | U8 *result; |
| 2466 | U8 *p; | |
| 2467 | ||
| 74d49cd0 | 2468 | Newx(result, targlen + 1, U8); |
| 01f6e806 | 2469 | p = result; |
| a1ca4561 | 2470 | while (tmps < send) { |
| 74d49cd0 TS |
2471 | const UV c = utf8n_to_uvchr(tmps, send-tmps, &l, utf8flags); |
| 2472 | tmps += l; | |
| 01f6e806 | 2473 | p = uvchr_to_utf8_flags(p, ~c, UNICODE_ALLOW_ANY); |
| a1ca4561 | 2474 | } |
| 01f6e806 | 2475 | *p = '\0'; |
| c1c21316 NC |
2476 | sv_usepvn_flags(TARG, (char*)result, targlen, |
| 2477 | SV_HAS_TRAILING_NUL); | |
| a1ca4561 YST |
2478 | SvUTF8_on(TARG); |
| 2479 | } | |
| 2480 | else { | |
| 01f6e806 AL |
2481 | U8 *result; |
| 2482 | U8 *p; | |
| 2483 | ||
| 74d49cd0 | 2484 | Newx(result, nchar + 1, U8); |
| 01f6e806 | 2485 | p = result; |
| a1ca4561 | 2486 | while (tmps < send) { |
| 74d49cd0 TS |
2487 | const U8 c = (U8)utf8n_to_uvchr(tmps, send-tmps, &l, utf8flags); |
| 2488 | tmps += l; | |
| 01f6e806 | 2489 | *p++ = ~c; |
| a1ca4561 | 2490 | } |
| 01f6e806 | 2491 | *p = '\0'; |
| c1c21316 | 2492 | sv_usepvn_flags(TARG, (char*)result, nchar, SV_HAS_TRAILING_NUL); |
| d0a21e00 | 2493 | SvUTF8_off(TARG); |
| 1d68d6cd | 2494 | } |
| 1d68d6cd SC |
2495 | SETs(TARG); |
| 2496 | RETURN; | |
| 2497 | } | |
| a0d0e21e | 2498 | #ifdef LIBERAL |
| 51723571 JH |
2499 | { |
| 2500 | register long *tmpl; | |
| 2501 | for ( ; anum && (unsigned long)tmps % sizeof(long); anum--, tmps++) | |
| 2502 | *tmps = ~*tmps; | |
| 2503 | tmpl = (long*)tmps; | |
| bb7a0f54 | 2504 | for ( ; anum >= (I32)sizeof(long); anum -= (I32)sizeof(long), tmpl++) |
| 51723571 JH |
2505 | *tmpl = ~*tmpl; |
| 2506 | tmps = (U8*)tmpl; | |
| 2507 | } | |
| a0d0e21e LW |
2508 | #endif |
| 2509 | for ( ; anum > 0; anum--, tmps++) | |
| 2510 | *tmps = ~*tmps; | |
| 2511 | ||
| 2512 | SETs(TARG); | |
| 2513 | } | |
| 2514 | RETURN; | |
| 2515 | } | |
| 79072805 LW |
2516 | } |
| 2517 | ||
| a0d0e21e LW |
2518 | /* integer versions of some of the above */ |
| 2519 | ||
| a0d0e21e | 2520 | PP(pp_i_multiply) |
| 79072805 | 2521 | { |
| 97aff369 | 2522 | dVAR; dSP; dATARGET; tryAMAGICbin(mult,opASSIGN); |
| a0d0e21e LW |
2523 | { |
| 2524 | dPOPTOPiirl; | |
| 2525 | SETi( left * right ); | |
| 2526 | RETURN; | |
| 2527 | } | |
| 79072805 LW |
2528 | } |
| 2529 | ||
| a0d0e21e | 2530 | PP(pp_i_divide) |
| 79072805 | 2531 | { |
| ece1bcef | 2532 | IV num; |
| 97aff369 | 2533 | dVAR; dSP; dATARGET; tryAMAGICbin(div,opASSIGN); |
| a0d0e21e LW |
2534 | { |
| 2535 | dPOPiv; | |
| 2536 | if (value == 0) | |
| ece1bcef SP |
2537 | DIE(aTHX_ "Illegal division by zero"); |
| 2538 | num = POPi; | |
| a0cec769 YST |
2539 | |
| 2540 | /* avoid FPE_INTOVF on some platforms when num is IV_MIN */ | |
| 2541 | if (value == -1) | |
| 2542 | value = - num; | |
| 2543 | else | |
| 2544 | value = num / value; | |
| a0d0e21e LW |
2545 | PUSHi( value ); |
| 2546 | RETURN; | |
| 2547 | } | |
| 79072805 LW |
2548 | } |
| 2549 | ||
| 224ec323 JH |
2550 | STATIC |
| 2551 | PP(pp_i_modulo_0) | |
| 2552 | { | |
| 2553 | /* This is the vanilla old i_modulo. */ | |
| 27da23d5 | 2554 | dVAR; dSP; dATARGET; tryAMAGICbin(modulo,opASSIGN); |
| 224ec323 JH |
2555 | { |
| 2556 | dPOPTOPiirl; | |
| 2557 | if (!right) | |
| 2558 | DIE(aTHX_ "Illegal modulus zero"); | |
| a0cec769 YST |
2559 | /* avoid FPE_INTOVF on some platforms when left is IV_MIN */ |
| 2560 | if (right == -1) | |
| 2561 | SETi( 0 ); | |
| 2562 | else | |
| 2563 | SETi( left % right ); | |
| 224ec323 JH |
2564 | RETURN; |
| 2565 | } | |
| 2566 | } | |
| 2567 | ||
| 11010fa3 | 2568 | #if defined(__GLIBC__) && IVSIZE == 8 |
| 224ec323 JH |
2569 | STATIC |
| 2570 | PP(pp_i_modulo_1) | |
| 2571 | { | |
| 224ec323 | 2572 | /* This is the i_modulo with the workaround for the _moddi3 bug |
| fce2b89e | 2573 | * in (at least) glibc 2.2.5 (the PERL_ABS() the workaround). |
| 224ec323 | 2574 | * See below for pp_i_modulo. */ |
| 97aff369 | 2575 | dVAR; dVAR; dSP; dATARGET; tryAMAGICbin(modulo,opASSIGN); |
| 224ec323 JH |
2576 | { |
| 2577 | dPOPTOPiirl; | |
| 2578 | if (!right) | |
| 2579 | DIE(aTHX_ "Illegal modulus zero"); | |
| a0cec769 YST |
2580 | /* avoid FPE_INTOVF on some platforms when left is IV_MIN */ |
| 2581 | if (right == -1) | |
| 2582 | SETi( 0 ); | |
| 2583 | else | |
| 2584 | SETi( left % PERL_ABS(right) ); | |
| 224ec323 JH |
2585 | RETURN; |
| 2586 | } | |
| 224ec323 | 2587 | } |
| fce2b89e | 2588 | #endif |
| 224ec323 | 2589 | |
| a0d0e21e | 2590 | PP(pp_i_modulo) |
| 79072805 | 2591 | { |
| 27da23d5 | 2592 | dVAR; dSP; dATARGET; tryAMAGICbin(modulo,opASSIGN); |
| 224ec323 JH |
2593 | { |
| 2594 | dPOPTOPiirl; | |
| 2595 | if (!right) | |
| 2596 | DIE(aTHX_ "Illegal modulus zero"); | |
| 2597 | /* The assumption is to use hereafter the old vanilla version... */ | |
| 2598 | PL_op->op_ppaddr = | |
| 2599 | PL_ppaddr[OP_I_MODULO] = | |
| 1c127fab | 2600 | Perl_pp_i_modulo_0; |
| 224ec323 JH |
2601 | /* .. but if we have glibc, we might have a buggy _moddi3 |
| 2602 | * (at least glicb 2.2.5 is known to have this bug), in other | |
| 2603 | * words our integer modulus with negative quad as the second | |
| 2604 | * argument might be broken. Test for this and re-patch the | |
| 2605 | * opcode dispatch table if that is the case, remembering to | |
| 2606 | * also apply the workaround so that this first round works | |
| 2607 | * right, too. See [perl #9402] for more information. */ | |
| 2608 | #if defined(__GLIBC__) && IVSIZE == 8 | |
| 2609 | { | |
| 2610 | IV l = 3; | |
| 2611 | IV r = -10; | |
| 2612 | /* Cannot do this check with inlined IV constants since | |
| 2613 | * that seems to work correctly even with the buggy glibc. */ | |
| 2614 | if (l % r == -3) { | |
| 2615 | /* Yikes, we have the bug. | |
| 2616 | * Patch in the workaround version. */ | |
| 2617 | PL_op->op_ppaddr = | |
| 2618 | PL_ppaddr[OP_I_MODULO] = | |
| 2619 | &Perl_pp_i_modulo_1; | |
| 2620 | /* Make certain we work right this time, too. */ | |
| 32fdb065 | 2621 | right = PERL_ABS(right); |
| 224ec323 JH |
2622 | } |
| 2623 | } | |
| 2624 | #endif | |
| a0cec769 YST |
2625 | /* avoid FPE_INTOVF on some platforms when left is IV_MIN */ |
| 2626 | if (right == -1) | |
| 2627 | SETi( 0 ); | |
| 2628 | else | |
| 2629 | SETi( left % right ); | |
| 224ec323 JH |
2630 | RETURN; |
| 2631 | } | |
| 79072805 LW |
2632 | } |
| 2633 | ||
| a0d0e21e | 2634 | PP(pp_i_add) |
| 79072805 | 2635 | { |
| 97aff369 | 2636 | dVAR; dSP; dATARGET; tryAMAGICbin(add,opASSIGN); |
| a0d0e21e | 2637 | { |
| 5e66d4f1 | 2638 | dPOPTOPiirl_ul; |
| a0d0e21e LW |
2639 | SETi( left + right ); |
| 2640 | RETURN; | |
| 79072805 | 2641 | } |
| 79072805 LW |
2642 | } |
| 2643 | ||
| a0d0e21e | 2644 | PP(pp_i_subtract) |
| 79072805 | 2645 | { |
| 97aff369 | 2646 | dVAR; dSP; dATARGET; tryAMAGICbin(subtr,opASSIGN); |
| a0d0e21e | 2647 | { |
| 5e66d4f1 | 2648 | dPOPTOPiirl_ul; |
| a0d0e21e LW |
2649 | SETi( left - right ); |
| 2650 | RETURN; | |
| 79072805 | 2651 | } |
| 79072805 LW |
2652 | } |
| 2653 | ||
| a0d0e21e | 2654 | PP(pp_i_lt) |
| 79072805 | 2655 | { |
| 97aff369 | 2656 | dVAR; dSP; tryAMAGICbinSET(lt,0); |
| a0d0e21e LW |
2657 | { |
| 2658 | dPOPTOPiirl; | |
| 54310121 | 2659 | SETs(boolSV(left < right)); |
| a0d0e21e LW |
2660 | RETURN; |
| 2661 | } | |
| 79072805 LW |
2662 | } |
| 2663 | ||
| a0d0e21e | 2664 | PP(pp_i_gt) |
| 79072805 | 2665 | { |
| 97aff369 | 2666 | dVAR; dSP; tryAMAGICbinSET(gt,0); |
| a0d0e21e LW |
2667 | { |
| 2668 | dPOPTOPiirl; | |
| 54310121 | 2669 | SETs(boolSV(left > right)); |
| a0d0e21e LW |
2670 | RETURN; |
| 2671 | } | |
| 79072805 LW |
2672 | } |
| 2673 | ||
| a0d0e21e | 2674 | PP(pp_i_le) |
| 79072805 | 2675 | { |
| 97aff369 | 2676 | dVAR; dSP; tryAMAGICbinSET(le,0); |
| a0d0e21e LW |
2677 | { |
| 2678 | dPOPTOPiirl; | |
| 54310121 | 2679 | SETs(boolSV(left <= right)); |
| a0d0e21e | 2680 | RETURN; |
| 85e6fe83 | 2681 | } |
| 79072805 LW |
2682 | } |
| 2683 | ||
| a0d0e21e | 2684 | PP(pp_i_ge) |
| 79072805 | 2685 | { |
| 97aff369 | 2686 | dVAR; dSP; tryAMAGICbinSET(ge,0); |
| a0d0e21e LW |
2687 | { |
| 2688 | dPOPTOPiirl; | |
| 54310121 | 2689 | SETs(boolSV(left >= right)); |
| a0d0e21e LW |
2690 | RETURN; |
| 2691 | } | |
| 79072805 LW |
2692 | } |
| 2693 | ||
| a0d0e21e | 2694 | PP(pp_i_eq) |
| 79072805 | 2695 | { |
| 97aff369 | 2696 | dVAR; dSP; tryAMAGICbinSET(eq,0); |
| a0d0e21e LW |
2697 | { |
| 2698 | dPOPTOPiirl; | |
| 54310121 | 2699 | SETs(boolSV(left == right)); |
| a0d0e21e LW |
2700 | RETURN; |
| 2701 | } | |
| 79072805 LW |
2702 | } |
| 2703 | ||
| a0d0e21e | 2704 | PP(pp_i_ne) |
| 79072805 | 2705 | { |
| 97aff369 | 2706 | dVAR; dSP; tryAMAGICbinSET(ne,0); |
| a0d0e21e LW |
2707 | { |
| 2708 | dPOPTOPiirl; | |
| 54310121 | 2709 | SETs(boolSV(left != right)); |
| a0d0e21e LW |
2710 | RETURN; |
| 2711 | } | |
| 79072805 LW |
2712 | } |
| 2713 | ||
| a0d0e21e | 2714 | PP(pp_i_ncmp) |
| 79072805 | 2715 | { |
| 97aff369 | 2716 | dVAR; dSP; dTARGET; tryAMAGICbin(ncmp,0); |
| a0d0e21e LW |
2717 | { |
| 2718 | dPOPTOPiirl; | |
| 2719 | I32 value; | |
| 79072805 | 2720 | |
| a0d0e21e | 2721 | if (left > right) |
| 79072805 | 2722 | value = 1; |
| a0d0e21e | 2723 | else if (left < right) |
| 79072805 | 2724 | value = -1; |
| a0d0e21e | 2725 | else |
| 79072805 | 2726 | value = 0; |
| a0d0e21e LW |
2727 | SETi(value); |
| 2728 | RETURN; | |
| 79072805 | 2729 | } |
| 85e6fe83 LW |
2730 | } |
| 2731 | ||
| 2732 | PP(pp_i_negate) | |
| 2733 | { | |
| 97aff369 | 2734 | dVAR; dSP; dTARGET; tryAMAGICun(neg); |
| 85e6fe83 LW |
2735 | SETi(-TOPi); |
| 2736 | RETURN; | |
| 2737 | } | |
| 2738 | ||
| 79072805 LW |
2739 | /* High falutin' math. */ |
| 2740 | ||
| 2741 | PP(pp_atan2) | |
| 2742 | { | |
| 97aff369 | 2743 | dVAR; dSP; dTARGET; tryAMAGICbin(atan2,0); |
| a0d0e21e LW |
2744 | { |
| 2745 | dPOPTOPnnrl; | |
| 65202027 | 2746 | SETn(Perl_atan2(left, right)); |
| a0d0e21e LW |
2747 | RETURN; |
| 2748 | } | |
| 79072805 LW |
2749 | } |
| 2750 | ||
| 2751 | PP(pp_sin) | |
| 2752 | { | |
| 71302fe3 NC |
2753 | dVAR; dSP; dTARGET; |
| 2754 | int amg_type = sin_amg; | |
| 2755 | const char *neg_report = NULL; | |
| bc81784a | 2756 | NV (*func)(NV) = Perl_sin; |
| 71302fe3 NC |
2757 | const int op_type = PL_op->op_type; |
| 2758 | ||
| 2759 | switch (op_type) { | |
| 2760 | case OP_COS: | |
| 2761 | amg_type = cos_amg; | |
| bc81784a | 2762 | func = Perl_cos; |
| 71302fe3 NC |
2763 | break; |
| 2764 | case OP_EXP: | |
| 2765 | amg_type = exp_amg; | |
| bc81784a | 2766 | func = Perl_exp; |
| 71302fe3 NC |
2767 | break; |
| 2768 | case OP_LOG: | |
| 2769 | amg_type = log_amg; | |
| bc81784a | 2770 | func = Perl_log; |
| 71302fe3 NC |
2771 | neg_report = "log"; |
| 2772 | break; | |
| 2773 | case OP_SQRT: | |
| 2774 | amg_type = sqrt_amg; | |
| bc81784a | 2775 | func = Perl_sqrt; |
| 71302fe3 NC |
2776 | neg_report = "sqrt"; |
| 2777 | break; | |
| a0d0e21e | 2778 | } |
| 79072805 | 2779 | |
| 71302fe3 | 2780 | tryAMAGICun_var(amg_type); |
| a0d0e21e | 2781 | { |
| 1b6737cc | 2782 | const NV value = POPn; |
| 71302fe3 NC |
2783 | if (neg_report) { |
| 2784 | if (op_type == OP_LOG ? (value <= 0.0) : (value < 0.0)) { | |
| 2785 | SET_NUMERIC_STANDARD(); | |
| 2786 | DIE(aTHX_ "Can't take %s of %"NVgf, neg_report, value); | |
| 2787 | } | |
| 2788 | } | |
| 2789 | XPUSHn(func(value)); | |
| a0d0e21e LW |
2790 | RETURN; |
| 2791 | } | |
| 79072805 LW |
2792 | } |
| 2793 | ||
| 56cb0a1c AD |
2794 | /* Support Configure command-line overrides for rand() functions. |
| 2795 | After 5.005, perhaps we should replace this by Configure support | |
| 2796 | for drand48(), random(), or rand(). For 5.005, though, maintain | |
| 2797 | compatibility by calling rand() but allow the user to override it. | |
| 2798 | See INSTALL for details. --Andy Dougherty 15 July 1998 | |
| 2799 | */ | |
| 85ab1d1d JH |
2800 | /* Now it's after 5.005, and Configure supports drand48() and random(), |
| 2801 | in addition to rand(). So the overrides should not be needed any more. | |
| 2802 | --Jarkko Hietaniemi 27 September 1998 | |
| 2803 | */ | |
| 2804 | ||
| 2805 | #ifndef HAS_DRAND48_PROTO | |
| 20ce7b12 | 2806 | extern double drand48 (void); |
| 56cb0a1c AD |
2807 | #endif |
| 2808 | ||
| 79072805 LW |
2809 | PP(pp_rand) |
| 2810 | { | |
| 97aff369 | 2811 | dVAR; dSP; dTARGET; |
| 65202027 | 2812 | NV value; |
| 79072805 LW |
2813 | if (MAXARG < 1) |
| 2814 | value = 1.0; | |
| 2815 | else | |
| 2816 | value = POPn; | |
| 2817 | if (value == 0.0) | |
| 2818 | value = 1.0; | |
| 80252599 | 2819 | if (!PL_srand_called) { |
| 85ab1d1d | 2820 | (void)seedDrand01((Rand_seed_t)seed()); |
| 80252599 | 2821 | PL_srand_called = TRUE; |
| 93dc8474 | 2822 | } |
| 85ab1d1d | 2823 | value *= Drand01(); |
| 79072805 LW |
2824 | XPUSHn(value); |
| 2825 | RETURN; | |
| 2826 | } | |
| 2827 | ||
| 2828 | PP(pp_srand) | |
| 2829 | { | |
| 97aff369 | 2830 | dVAR; dSP; |
| 0bd48802 | 2831 | const UV anum = (MAXARG < 1) ? seed() : POPu; |
| 85ab1d1d | 2832 | (void)seedDrand01((Rand_seed_t)anum); |
| 80252599 | 2833 | PL_srand_called = TRUE; |
| 79072805 LW |
2834 | EXTEND(SP, 1); |
| 2835 | RETPUSHYES; | |
| 2836 | } | |
| 2837 | ||
| 79072805 LW |
2838 | PP(pp_int) |
| 2839 | { | |
| 97aff369 | 2840 | dVAR; dSP; dTARGET; tryAMAGICun(int); |
| 774d564b | 2841 | { |
| 1b6737cc | 2842 | const IV iv = TOPi; /* attempt to convert to IV if possible. */ |
| 28e5dec8 JH |
2843 | /* XXX it's arguable that compiler casting to IV might be subtly |
| 2844 | different from modf (for numbers inside (IV_MIN,UV_MAX)) in which | |
| 2845 | else preferring IV has introduced a subtle behaviour change bug. OTOH | |
| 2846 | relying on floating point to be accurate is a bug. */ | |
| 2847 | ||
| 922c4365 MHM |
2848 | if (!SvOK(TOPs)) |
| 2849 | SETu(0); | |
| 2850 | else if (SvIOK(TOPs)) { | |
| 28e5dec8 | 2851 | if (SvIsUV(TOPs)) { |
| 1b6737cc | 2852 | const UV uv = TOPu; |
| 28e5dec8 JH |
2853 | SETu(uv); |
| 2854 | } else | |
| 2855 | SETi(iv); | |
| 2856 | } else { | |
| 1b6737cc | 2857 | const NV value = TOPn; |
| 1048ea30 | 2858 | if (value >= 0.0) { |
| 28e5dec8 JH |
2859 | if (value < (NV)UV_MAX + 0.5) { |
| 2860 | SETu(U_V(value)); | |
| 2861 | } else { | |
| 059a1014 | 2862 | SETn(Perl_floor(value)); |
| 28e5dec8 | 2863 | } |
| 1048ea30 | 2864 | } |
| 28e5dec8 JH |
2865 | else { |
| 2866 | if (value > (NV)IV_MIN - 0.5) { | |
| 2867 | SETi(I_V(value)); | |
| 2868 | } else { | |
| 1bbae031 | 2869 | SETn(Perl_ceil(value)); |
| 28e5dec8 JH |
2870 | } |
| 2871 | } | |
| 774d564b | 2872 | } |
| 79072805 | 2873 | } |
| 79072805 LW |
2874 | RETURN; |
| 2875 | } | |
| 2876 | ||
| 463ee0b2 LW |
2877 | PP(pp_abs) |
| 2878 | { | |
| 97aff369 | 2879 | dVAR; dSP; dTARGET; tryAMAGICun(abs); |
| a0d0e21e | 2880 | { |
| 28e5dec8 | 2881 | /* This will cache the NV value if string isn't actually integer */ |
| 1b6737cc | 2882 | const IV iv = TOPi; |
| a227d84d | 2883 | |
| 922c4365 MHM |
2884 | if (!SvOK(TOPs)) |
| 2885 | SETu(0); | |
| 2886 | else if (SvIOK(TOPs)) { | |
| 28e5dec8 JH |
2887 | /* IVX is precise */ |
| 2888 | if (SvIsUV(TOPs)) { | |
| 2889 | SETu(TOPu); /* force it to be numeric only */ | |
| 2890 | } else { | |
| 2891 | if (iv >= 0) { | |
| 2892 | SETi(iv); | |
| 2893 | } else { | |
| 2894 | if (iv != IV_MIN) { | |
| 2895 | SETi(-iv); | |
| 2896 | } else { | |
| 2897 | /* 2s complement assumption. Also, not really needed as | |
| 2898 | IV_MIN and -IV_MIN should both be %100...00 and NV-able */ | |
| 2899 | SETu(IV_MIN); | |
| 2900 | } | |
| a227d84d | 2901 | } |
| 28e5dec8 JH |
2902 | } |
| 2903 | } else{ | |
| 1b6737cc | 2904 | const NV value = TOPn; |
| 774d564b | 2905 | if (value < 0.0) |
| 1b6737cc | 2906 | SETn(-value); |
| a4474c9e DD |
2907 | else |
| 2908 | SETn(value); | |
| 774d564b | 2909 | } |
| a0d0e21e | 2910 | } |
| 774d564b | 2911 | RETURN; |
| 463ee0b2 LW |
2912 | } |
| 2913 | ||
| 79072805 LW |
2914 | PP(pp_oct) |
| 2915 | { | |
| 97aff369 | 2916 | dVAR; dSP; dTARGET; |
| 5c144d81 | 2917 | const char *tmps; |
| 53305cf1 | 2918 | I32 flags = PERL_SCAN_ALLOW_UNDERSCORES; |
| 6f894ead | 2919 | STRLEN len; |
| 53305cf1 NC |
2920 | NV result_nv; |
| 2921 | UV result_uv; | |
| 1b6737cc | 2922 | SV* const sv = POPs; |
| 79072805 | 2923 | |
| 349d4f2f | 2924 | tmps = (SvPV_const(sv, len)); |
| 2bc69dc4 NIS |
2925 | if (DO_UTF8(sv)) { |
| 2926 | /* If Unicode, try to downgrade | |
| 2927 | * If not possible, croak. */ | |
| 1b6737cc | 2928 | SV* const tsv = sv_2mortal(newSVsv(sv)); |
| 2bc69dc4 NIS |
2929 | |
| 2930 | SvUTF8_on(tsv); | |
| 2931 | sv_utf8_downgrade(tsv, FALSE); | |
| 349d4f2f | 2932 | tmps = SvPV_const(tsv, len); |
| 2bc69dc4 | 2933 | } |
| daa2adfd NC |
2934 | if (PL_op->op_type == OP_HEX) |
| 2935 | goto hex; | |
| 2936 | ||
| 6f894ead | 2937 | while (*tmps && len && isSPACE(*tmps)) |
| 53305cf1 | 2938 | tmps++, len--; |
| 9e24b6e2 | 2939 | if (*tmps == '0') |
| 53305cf1 | 2940 | tmps++, len--; |
| daa2adfd NC |
2941 | if (*tmps == 'x') { |
| 2942 | hex: | |
| 53305cf1 | 2943 | result_uv = grok_hex (tmps, &len, &flags, &result_nv); |
| daa2adfd | 2944 | } |
| 9e24b6e2 | 2945 | else if (*tmps == 'b') |
| 53305cf1 | 2946 | result_uv = grok_bin (tmps, &len, &flags, &result_nv); |
| 464e2e8a | 2947 | else |
| 53305cf1 NC |
2948 | result_uv = grok_oct (tmps, &len, &flags, &result_nv); |
| 2949 | ||
| 2950 | if (flags & PERL_SCAN_GREATER_THAN_UV_MAX) { | |
| 2951 | XPUSHn(result_nv); | |
| 2952 | } | |
| 2953 | else { | |
| 2954 | XPUSHu(result_uv); | |
| 2955 | } | |
| 79072805 LW |
2956 | RETURN; |
| 2957 | } | |
| 2958 | ||
| 2959 | /* String stuff. */ | |
| 2960 | ||
| 2961 | PP(pp_length) | |
| 2962 | { | |
| 97aff369 | 2963 | dVAR; dSP; dTARGET; |
| 0bd48802 | 2964 | SV * const sv = TOPs; |
| a0ed51b3 | 2965 | |
| 92331800 NC |
2966 | if (SvAMAGIC(sv)) { |
| 2967 | /* For an overloaded scalar, we can't know in advance if it's going to | |
| 2968 | be UTF-8 or not. Also, we can't call sv_len_utf8 as it likes to | |
| 2969 | cache the length. Maybe that should be a documented feature of it. | |
| 2970 | */ | |
| 2971 | STRLEN len; | |
| 2972 | const char *const p = SvPV_const(sv, len); | |
| 2973 | ||
| 2974 | if (DO_UTF8(sv)) { | |
| 899be101 | 2975 | SETi(utf8_length((U8*)p, (U8*)p + len)); |
| 92331800 NC |
2976 | } |
| 2977 | else | |
| 2978 | SETi(len); | |
| 2979 | ||
| 2980 | } | |
| 2981 | else if (DO_UTF8(sv)) | |
| 7e2040f0 GS |
2982 | SETi(sv_len_utf8(sv)); |
| 2983 | else | |
| 2984 | SETi(sv_len(sv)); | |
| 79072805 LW |
2985 | RETURN; |
| 2986 | } | |
| 2987 | ||
| 2988 | PP(pp_substr) | |
| 2989 | { | |
| 97aff369 | 2990 | dVAR; dSP; dTARGET; |
| 79072805 | 2991 | SV *sv; |
| 9c5ffd7c | 2992 | I32 len = 0; |
| 463ee0b2 | 2993 | STRLEN curlen; |
| 9402d6ed | 2994 | STRLEN utf8_curlen; |
| 79072805 LW |
2995 | I32 pos; |
| 2996 | I32 rem; | |
| 84902520 | 2997 | I32 fail; |
| e1ec3a88 AL |
2998 | const I32 lvalue = PL_op->op_flags & OPf_MOD || LVRET; |
| 2999 | const char *tmps; | |
| fc15ae8f | 3000 | const I32 arybase = CopARYBASE_get(PL_curcop); |
| 9402d6ed | 3001 | SV *repl_sv = NULL; |
| cbbf8932 | 3002 | const char *repl = NULL; |
| 7b8d334a | 3003 | STRLEN repl_len; |
| 1b6737cc | 3004 | const int num_args = PL_op->op_private & 7; |
| 13e30c65 | 3005 | bool repl_need_utf8_upgrade = FALSE; |
| 9402d6ed | 3006 | bool repl_is_utf8 = FALSE; |
| 79072805 | 3007 | |
| 20408e3c | 3008 | SvTAINTED_off(TARG); /* decontaminate */ |
| 7e2040f0 | 3009 | SvUTF8_off(TARG); /* decontaminate */ |
| 78f9721b SM |
3010 | if (num_args > 2) { |
| 3011 | if (num_args > 3) { | |
| 9402d6ed | 3012 | repl_sv = POPs; |
| 83003860 | 3013 | repl = SvPV_const(repl_sv, repl_len); |
| 9402d6ed | 3014 | repl_is_utf8 = DO_UTF8(repl_sv) && SvCUR(repl_sv); |
| 7b8d334a | 3015 | } |
| 79072805 | 3016 | len = POPi; |
| 5d82c453 | 3017 | } |
| 84902520 | 3018 | pos = POPi; |
| 79072805 | 3019 | sv = POPs; |
| 849ca7ee | 3020 | PUTBACK; |
| 9402d6ed JH |
3021 | if (repl_sv) { |
| 3022 | if (repl_is_utf8) { | |
| 3023 | if (!DO_UTF8(sv)) | |
| 3024 | sv_utf8_upgrade(sv); | |
| 3025 | } | |
| 13e30c65 JH |
3026 | else if (DO_UTF8(sv)) |
| 3027 | repl_need_utf8_upgrade = TRUE; | |
| 9402d6ed | 3028 | } |
| 5c144d81 | 3029 | tmps = SvPV_const(sv, curlen); |
| 7e2040f0 | 3030 | if (DO_UTF8(sv)) { |
| 9402d6ed JH |
3031 | utf8_curlen = sv_len_utf8(sv); |
| 3032 | if (utf8_curlen == curlen) | |
| 3033 | utf8_curlen = 0; | |
| a0ed51b3 | 3034 | else |
| 9402d6ed | 3035 | curlen = utf8_curlen; |
| a0ed51b3 | 3036 | } |
| d1c2b58a | 3037 | else |
| 9402d6ed | 3038 | utf8_curlen = 0; |
| a0ed51b3 | 3039 | |
| 84902520 TB |
3040 | if (pos >= arybase) { |
| 3041 | pos -= arybase; | |
| 3042 | rem = curlen-pos; | |
| 3043 | fail = rem; | |
| 78f9721b | 3044 | if (num_args > 2) { |
| 5d82c453 GA |
3045 | if (len < 0) { |
| 3046 | rem += len; | |
| 3047 | if (rem < 0) | |
| 3048 | rem = 0; | |
| 3049 | } | |
| 3050 | else if (rem > len) | |
| 3051 | rem = len; | |
| 3052 | } | |
| 68dc0745 | 3053 | } |
| 84902520 | 3054 | else { |
| 5d82c453 | 3055 | pos += curlen; |
| 78f9721b | 3056 | if (num_args < 3) |
| 5d82c453 GA |
3057 | rem = curlen; |
| 3058 | else if (len >= 0) { | |
| 3059 | rem = pos+len; | |
| 3060 | if (rem > (I32)curlen) | |
| 3061 | rem = curlen; | |
| 3062 | } | |
| 3063 | else { | |
| 3064 | rem = curlen+len; | |
| 3065 | if (rem < pos) | |
| 3066 | rem = pos; | |
| 3067 | } | |
| 3068 | if (pos < 0) | |
| 3069 | pos = 0; | |
| 3070 | fail = rem; | |
| 3071 | rem -= pos; | |
| 84902520 TB |
3072 | } |
| 3073 | if (fail < 0) { | |
| e476b1b5 GS |
3074 | if (lvalue || repl) |
| 3075 | Perl_croak(aTHX_ "substr outside of string"); | |
| 3076 | if (ckWARN(WARN_SUBSTR)) | |
| 9014280d | 3077 | Perl_warner(aTHX_ packWARN(WARN_SUBSTR), "substr outside of string"); |
| 2304df62 AD |
3078 | RETPUSHUNDEF; |
| 3079 | } | |
| 79072805 | 3080 | else { |
| 1b6737cc AL |
3081 | const I32 upos = pos; |
| 3082 | const I32 urem = rem; | |
| 9402d6ed | 3083 | if (utf8_curlen) |
| a0ed51b3 | 3084 | sv_pos_u2b(sv, &pos, &rem); |
| 79072805 | 3085 | tmps += pos; |
| 781e7547 DM |
3086 | /* we either return a PV or an LV. If the TARG hasn't been used |
| 3087 | * before, or is of that type, reuse it; otherwise use a mortal | |
| 3088 | * instead. Note that LVs can have an extended lifetime, so also | |
| 3089 | * dont reuse if refcount > 1 (bug #20933) */ | |
| 3090 | if (SvTYPE(TARG) > SVt_NULL) { | |
| 3091 | if ( (SvTYPE(TARG) == SVt_PVLV) | |
| 3092 | ? (!lvalue || SvREFCNT(TARG) > 1) | |
| 3093 | : lvalue) | |
| 3094 | { | |
| 3095 | TARG = sv_newmortal(); | |
| 3096 | } | |
| 3097 | } | |
| 3098 | ||
| 79072805 | 3099 | sv_setpvn(TARG, tmps, rem); |
| 12aa1545 | 3100 | #ifdef USE_LOCALE_COLLATE |
| 14befaf4 | 3101 | sv_unmagic(TARG, PERL_MAGIC_collxfrm); |
| 12aa1545 | 3102 | #endif |
| 9402d6ed | 3103 | if (utf8_curlen) |
| 7f66633b | 3104 | SvUTF8_on(TARG); |
| f7928d6c | 3105 | if (repl) { |
| 13e30c65 JH |
3106 | SV* repl_sv_copy = NULL; |
| 3107 | ||
| 3108 | if (repl_need_utf8_upgrade) { | |
| 3109 | repl_sv_copy = newSVsv(repl_sv); | |
| 3110 | sv_utf8_upgrade(repl_sv_copy); | |
| 349d4f2f | 3111 | repl = SvPV_const(repl_sv_copy, repl_len); |
| 13e30c65 JH |
3112 | repl_is_utf8 = DO_UTF8(repl_sv_copy) && SvCUR(sv); |
| 3113 | } | |
| c8faf1c5 | 3114 | sv_insert(sv, pos, rem, repl, repl_len); |
| 9402d6ed | 3115 | if (repl_is_utf8) |
| f7928d6c | 3116 | SvUTF8_on(sv); |
| 9402d6ed JH |
3117 | if (repl_sv_copy) |
| 3118 | SvREFCNT_dec(repl_sv_copy); | |
| f7928d6c | 3119 | } |
| c8faf1c5 | 3120 | else if (lvalue) { /* it's an lvalue! */ |
| dedeecda | 3121 | if (!SvGMAGICAL(sv)) { |
| 3122 | if (SvROK(sv)) { | |
| 13c5b33c | 3123 | SvPV_force_nolen(sv); |
| 599cee73 | 3124 | if (ckWARN(WARN_SUBSTR)) |
| 9014280d | 3125 | Perl_warner(aTHX_ packWARN(WARN_SUBSTR), |
| 599cee73 | 3126 | "Attempt to use reference as lvalue in substr"); |
| dedeecda | 3127 | } |
| f7877b28 NC |
3128 | if (isGV_with_GP(sv)) |
| 3129 | SvPV_force_nolen(sv); | |
| 3130 | else if (SvOK(sv)) /* is it defined ? */ | |
| 7f66633b | 3131 | (void)SvPOK_only_UTF8(sv); |
| dedeecda | 3132 | else |
| 3133 | sv_setpvn(sv,"",0); /* avoid lexical reincarnation */ | |
| 3134 | } | |
| 5f05dabc | 3135 | |
| a0d0e21e LW |
3136 | if (SvTYPE(TARG) < SVt_PVLV) { |
| 3137 | sv_upgrade(TARG, SVt_PVLV); | |
| c445ea15 | 3138 | sv_magic(TARG, NULL, PERL_MAGIC_substr, NULL, 0); |
| ed6116ce | 3139 | } |
| a0d0e21e | 3140 | |
| 5f05dabc | 3141 | LvTYPE(TARG) = 'x'; |
| 6ff81951 GS |
3142 | if (LvTARG(TARG) != sv) { |
| 3143 | if (LvTARG(TARG)) | |
| 3144 | SvREFCNT_dec(LvTARG(TARG)); | |
| b37c2d43 | 3145 | LvTARG(TARG) = SvREFCNT_inc_simple(sv); |
| 6ff81951 | 3146 | } |
| 9aa983d2 JH |
3147 | LvTARGOFF(TARG) = upos; |
| 3148 | LvTARGLEN(TARG) = urem; | |
| 79072805 LW |
3149 | } |
| 3150 | } | |
| 849ca7ee | 3151 | SPAGAIN; |
| 79072805 LW |
3152 | PUSHs(TARG); /* avoid SvSETMAGIC here */ |
| 3153 | RETURN; | |
| 3154 | } | |
| 3155 | ||
| 3156 | PP(pp_vec) | |
| 3157 | { | |
| 97aff369 | 3158 | dVAR; dSP; dTARGET; |
| 1b6737cc AL |
3159 | register const IV size = POPi; |
| 3160 | register const IV offset = POPi; | |
| 3161 | register SV * const src = POPs; | |
| 3162 | const I32 lvalue = PL_op->op_flags & OPf_MOD || LVRET; | |
| a0d0e21e | 3163 | |
| 81e118e0 JH |
3164 | SvTAINTED_off(TARG); /* decontaminate */ |
| 3165 | if (lvalue) { /* it's an lvalue! */ | |
| 24aef97f HS |
3166 | if (SvREFCNT(TARG) > 1) /* don't share the TARG (#20933) */ |
| 3167 | TARG = sv_newmortal(); | |
| 81e118e0 JH |
3168 | if (SvTYPE(TARG) < SVt_PVLV) { |
| 3169 | sv_upgrade(TARG, SVt_PVLV); | |
| c445ea15 | 3170 | sv_magic(TARG, NULL, PERL_MAGIC_vec, NULL, 0); |
| 79072805 | 3171 | } |
| 81e118e0 JH |
3172 | LvTYPE(TARG) = 'v'; |
| 3173 | if (LvTARG(TARG) != src) { | |
| 3174 | if (LvTARG(TARG)) | |
| 3175 | SvREFCNT_dec(LvTARG(TARG)); | |
| b37c2d43 | 3176 | LvTARG(TARG) = SvREFCNT_inc_simple(src); |
| 79072805 | 3177 | } |
| 81e118e0 JH |
3178 | LvTARGOFF(TARG) = offset; |
| 3179 | LvTARGLEN(TARG) = size; | |
| 79072805 LW |
3180 | } |
| 3181 | ||
| 81e118e0 | 3182 | sv_setuv(TARG, do_vecget(src, offset, size)); |
| 79072805 LW |
3183 | PUSHs(TARG); |
| 3184 | RETURN; | |
| 3185 | } | |
| 3186 | ||
| 3187 | PP(pp_index) | |
| 3188 | { | |
| 97aff369 | 3189 | dVAR; dSP; dTARGET; |
| 79072805 LW |
3190 | SV *big; |
| 3191 | SV *little; | |
| c445ea15 | 3192 | SV *temp = NULL; |
| ad66a58c | 3193 | STRLEN biglen; |
| 2723d216 | 3194 | STRLEN llen = 0; |
| 79072805 LW |
3195 | I32 offset; |
| 3196 | I32 retval; | |
| 73ee8be2 NC |
3197 | const char *big_p; |
| 3198 | const char *little_p; | |
| fc15ae8f | 3199 | const I32 arybase = CopARYBASE_get(PL_curcop); |
| 2f040f7f NC |
3200 | bool big_utf8; |
| 3201 | bool little_utf8; | |
| 2723d216 | 3202 | const bool is_index = PL_op->op_type == OP_INDEX; |
| 79072805 | 3203 | |
| 2723d216 NC |
3204 | if (MAXARG >= 3) { |
| 3205 | /* arybase is in characters, like offset, so combine prior to the | |
| 3206 | UTF-8 to bytes calculation. */ | |
| 79072805 | 3207 | offset = POPi - arybase; |
| 2723d216 | 3208 | } |
| 79072805 LW |
3209 | little = POPs; |
| 3210 | big = POPs; | |
| 73ee8be2 NC |
3211 | big_p = SvPV_const(big, biglen); |
| 3212 | little_p = SvPV_const(little, llen); | |
| 3213 | ||
| e609e586 NC |
3214 | big_utf8 = DO_UTF8(big); |
| 3215 | little_utf8 = DO_UTF8(little); | |
| 3216 | if (big_utf8 ^ little_utf8) { | |
| 3217 | /* One needs to be upgraded. */ | |
| 2f040f7f NC |
3218 | if (little_utf8 && !PL_encoding) { |
| 3219 | /* Well, maybe instead we might be able to downgrade the small | |
| 3220 | string? */ | |
| 1eced8f8 | 3221 | char * const pv = (char*)bytes_from_utf8((U8 *)little_p, &llen, |
| 2f040f7f NC |
3222 | &little_utf8); |
| 3223 | if (little_utf8) { | |
| 3224 | /* If the large string is ISO-8859-1, and it's not possible to | |
| 3225 | convert the small string to ISO-8859-1, then there is no | |
| 3226 | way that it could be found anywhere by index. */ | |
| 3227 | retval = -1; | |
| 3228 | goto fail; | |
| 3229 | } | |
| e609e586 | 3230 | |
| 2f040f7f NC |
3231 | /* At this point, pv is a malloc()ed string. So donate it to temp |
| 3232 | to ensure it will get free()d */ | |
| 3233 | little = temp = newSV(0); | |
| 73ee8be2 NC |
3234 | sv_usepvn(temp, pv, llen); |
| 3235 | little_p = SvPVX(little); | |
| e609e586 | 3236 | } else { |
| 73ee8be2 NC |
3237 | temp = little_utf8 |
| 3238 | ? newSVpvn(big_p, biglen) : newSVpvn(little_p, llen); | |
| 2f040f7f NC |
3239 | |
| 3240 | if (PL_encoding) { | |
| 3241 | sv_recode_to_utf8(temp, PL_encoding); | |
| 3242 | } else { | |
| 3243 | sv_utf8_upgrade(temp); | |
| 3244 | } | |
| 3245 | if (little_utf8) { | |
| 3246 | big = temp; | |
| 3247 | big_utf8 = TRUE; | |
| 73ee8be2 | 3248 | big_p = SvPV_const(big, biglen); |
| 2f040f7f NC |
3249 | } else { |
| 3250 | little = temp; | |
| 73ee8be2 | 3251 | little_p = SvPV_const(little, llen); |
| 2f040f7f | 3252 | } |
| e609e586 NC |
3253 | } |
| 3254 | } | |
| 73ee8be2 NC |
3255 | if (SvGAMAGIC(big)) { |
| 3256 | /* Life just becomes a lot easier if I use a temporary here. | |
| 3257 | Otherwise I need to avoid calls to sv_pos_u2b(), which (dangerously) | |
| 3258 | will trigger magic and overloading again, as will fbm_instr() | |
| 3259 | */ | |
| 3260 | big = sv_2mortal(newSVpvn(big_p, biglen)); | |
| 3261 | if (big_utf8) | |
| 3262 | SvUTF8_on(big); | |
| 3263 | big_p = SvPVX(big); | |
| 3264 | } | |
| e4e44778 | 3265 | if (SvGAMAGIC(little) || (is_index && !SvOK(little))) { |
| 73ee8be2 NC |
3266 | /* index && SvOK() is a hack. fbm_instr() calls SvPV_const, which will |
| 3267 | warn on undef, and we've already triggered a warning with the | |
| 3268 | SvPV_const some lines above. We can't remove that, as we need to | |
| 3269 | call some SvPV to trigger overloading early and find out if the | |
| 3270 | string is UTF-8. | |
| 3271 | This is all getting to messy. The API isn't quite clean enough, | |
| 3272 | because data access has side effects. | |
| 3273 | */ | |
| 3274 | little = sv_2mortal(newSVpvn(little_p, llen)); | |
| 3275 | if (little_utf8) | |
| 3276 | SvUTF8_on(little); | |
| 3277 | little_p = SvPVX(little); | |
| 3278 | } | |
| e609e586 | 3279 | |
| 79072805 | 3280 | if (MAXARG < 3) |
| 2723d216 | 3281 | offset = is_index ? 0 : biglen; |
| a0ed51b3 | 3282 | else { |
| ad66a58c | 3283 | if (big_utf8 && offset > 0) |
| a0ed51b3 | 3284 | sv_pos_u2b(big, &offset, 0); |
| 73ee8be2 NC |
3285 | if (!is_index) |
| 3286 | offset += llen; | |
| a0ed51b3 | 3287 | } |
| 79072805 LW |
3288 | if (offset < 0) |
| 3289 | offset = 0; | |
| ad66a58c NC |
3290 | else if (offset > (I32)biglen) |
| 3291 | offset = biglen; | |
| 73ee8be2 NC |
3292 | if (!(little_p = is_index |
| 3293 | ? fbm_instr((unsigned char*)big_p + offset, | |
| 3294 | (unsigned char*)big_p + biglen, little, 0) | |
| 3295 | : rninstr(big_p, big_p + offset, | |
| 3296 | little_p, little_p + llen))) | |
| a0ed51b3 | 3297 | retval = -1; |
| ad66a58c | 3298 | else { |
| 73ee8be2 | 3299 | retval = little_p - big_p; |
| ad66a58c NC |
3300 | if (retval > 0 && big_utf8) |
| 3301 | sv_pos_b2u(big, &retval); | |
| 3302 | } | |
| e609e586 NC |
3303 | if (temp) |
| 3304 | SvREFCNT_dec(temp); | |
| 2723d216 | 3305 | fail: |
| a0ed51b3 | 3306 | PUSHi(retval + arybase); |
| 79072805 LW |
3307 | RETURN; |
| 3308 | } | |
| 3309 | ||
| 3310 | PP(pp_sprintf) | |
| 3311 | { | |
| 97aff369 | 3312 | dVAR; dSP; dMARK; dORIGMARK; dTARGET; |
| 20ee07fb RGS |
3313 | if (SvTAINTED(MARK[1])) |
| 3314 | TAINT_PROPER("sprintf"); | |
| 79072805 | 3315 | do_sprintf(TARG, SP-MARK, MARK+1); |
| bbce6d69 | 3316 | TAINT_IF(SvTAINTED(TARG)); |
| 79072805 LW |
3317 | SP = ORIGMARK; |
| 3318 | PUSHTARG; | |
| 3319 | RETURN; | |
| 3320 | } | |
| 3321 | ||
| 79072805 LW |
3322 | PP(pp_ord) |
| 3323 | { | |
| 97aff369 | 3324 | dVAR; dSP; dTARGET; |
| 1eced8f8 | 3325 | |
| 7df053ec | 3326 | SV *argsv = POPs; |
| ba210ebe | 3327 | STRLEN len; |
| 349d4f2f | 3328 | const U8 *s = (U8*)SvPV_const(argsv, len); |
| 121910a4 | 3329 | |
| 799ef3cb | 3330 | if (PL_encoding && SvPOK(argsv) && !DO_UTF8(argsv)) { |
| 1eced8f8 | 3331 | SV * const tmpsv = sv_2mortal(newSVsv(argsv)); |
| 799ef3cb | 3332 | s = (U8*)sv_recode_to_utf8(tmpsv, PL_encoding); |
| 121910a4 JH |
3333 | argsv = tmpsv; |
| 3334 | } | |
| 79072805 | 3335 | |
| 872c91ae | 3336 | XPUSHu(DO_UTF8(argsv) ? |
| 89ebb4a3 | 3337 | utf8n_to_uvchr(s, UTF8_MAXBYTES, 0, UTF8_ALLOW_ANYUV) : |
| 872c91ae | 3338 | (*s & 0xff)); |
| 68795e93 | 3339 | |
| 79072805 LW |
3340 | RETURN; |
| 3341 | } | |
| 3342 | ||
| 463ee0b2 LW |
3343 | PP(pp_chr) |
| 3344 | { | |
| 97aff369 | 3345 | dVAR; dSP; dTARGET; |
| 463ee0b2 | 3346 | char *tmps; |
| 8a064bd6 JH |
3347 | UV value; |
| 3348 | ||
| 3349 | if (((SvIOK_notUV(TOPs) && SvIV(TOPs) < 0) | |
| 3350 | || | |
| 3351 | (SvNOK(TOPs) && SvNV(TOPs) < 0.0))) { | |
| 3352 | if (IN_BYTES) { | |
| 3353 | value = POPu; /* chr(-1) eq chr(0xff), etc. */ | |
| 3354 | } else { | |
| 3355 | (void) POPs; /* Ignore the argument value. */ | |
| 3356 | value = UNICODE_REPLACEMENT; | |
| 3357 | } | |
| 3358 | } else { | |
| 3359 | value = POPu; | |
| 3360 | } | |
| 463ee0b2 | 3361 | |
| 862a34c6 | 3362 | SvUPGRADE(TARG,SVt_PV); |
| a0ed51b3 | 3363 | |
| 0064a8a9 | 3364 | if (value > 255 && !IN_BYTES) { |
| eb160463 | 3365 | SvGROW(TARG, (STRLEN)UNISKIP(value)+1); |
| 62961d2e | 3366 | tmps = (char*)uvchr_to_utf8_flags((U8*)SvPVX(TARG), value, 0); |
| 349d4f2f | 3367 | SvCUR_set(TARG, tmps - SvPVX_const(TARG)); |
| a0ed51b3 LW |
3368 | *tmps = '\0'; |
| 3369 | (void)SvPOK_only(TARG); | |
| aa6ffa16 | 3370 | SvUTF8_on(TARG); |
| a0ed51b3 LW |
3371 | XPUSHs(TARG); |
| 3372 | RETURN; | |
| 3373 | } | |
| 3374 | ||
| 748a9306 | 3375 | SvGROW(TARG,2); |
| 463ee0b2 LW |
3376 | SvCUR_set(TARG, 1); |
| 3377 | tmps = SvPVX(TARG); | |
| eb160463 | 3378 | *tmps++ = (char)value; |
| 748a9306 | 3379 | *tmps = '\0'; |
| a0d0e21e | 3380 | (void)SvPOK_only(TARG); |
| 4c5ed6e2 | 3381 | |
| 88632417 | 3382 | if (PL_encoding && !IN_BYTES) { |
| 799ef3cb | 3383 | sv_recode_to_utf8(TARG, PL_encoding); |
| 88632417 JH |
3384 | tmps = SvPVX(TARG); |
| 3385 | if (SvCUR(TARG) == 0 || !is_utf8_string((U8*)tmps, SvCUR(TARG)) || | |
| 4c5ed6e2 TS |
3386 | UNICODE_IS_REPLACEMENT(utf8_to_uvchr((U8*)tmps, NULL))) { |
| 3387 | SvGROW(TARG, 2); | |
| d5a15ac2 | 3388 | tmps = SvPVX(TARG); |
| 4c5ed6e2 TS |
3389 | SvCUR_set(TARG, 1); |
| 3390 | *tmps++ = (char)value; | |
| 88632417 | 3391 | *tmps = '\0'; |
| 4c5ed6e2 | 3392 | SvUTF8_off(TARG); |
| 88632417 JH |
3393 | } |
| 3394 | } | |
| 4c5ed6e2 | 3395 | |
| 463ee0b2 LW |
3396 | XPUSHs(TARG); |
| 3397 | RETURN; | |
| 3398 | } | |
| 3399 | ||
| 79072805 LW |
3400 | PP(pp_crypt) |
| 3401 | { | |
| 79072805 | 3402 | #ifdef HAS_CRYPT |
| 97aff369 | 3403 | dVAR; dSP; dTARGET; |
| 5f74f29c | 3404 | dPOPTOPssrl; |
| 85c16d83 | 3405 | STRLEN len; |
| 10516c54 | 3406 | const char *tmps = SvPV_const(left, len); |
| 2bc69dc4 | 3407 | |
| 85c16d83 | 3408 | if (DO_UTF8(left)) { |
| 2bc69dc4 | 3409 | /* If Unicode, try to downgrade. |
| f2791508 JH |
3410 | * If not possible, croak. |
| 3411 | * Yes, we made this up. */ | |
| 1b6737cc | 3412 | SV* const tsv = sv_2mortal(newSVsv(left)); |
| 2bc69dc4 | 3413 | |
| f2791508 | 3414 | SvUTF8_on(tsv); |
| 2bc69dc4 | 3415 | sv_utf8_downgrade(tsv, FALSE); |
| 349d4f2f | 3416 | tmps = SvPV_const(tsv, len); |
| 85c16d83 | 3417 | } |
| 05404ffe JH |
3418 | # ifdef USE_ITHREADS |
| 3419 | # ifdef HAS_CRYPT_R | |
| 3420 | if (!PL_reentrant_buffer->_crypt_struct_buffer) { | |
| 3421 | /* This should be threadsafe because in ithreads there is only | |
| 3422 | * one thread per interpreter. If this would not be true, | |
| 3423 | * we would need a mutex to protect this malloc. */ | |
| 3424 | PL_reentrant_buffer->_crypt_struct_buffer = | |
| 3425 | (struct crypt_data *)safemalloc(sizeof(struct crypt_data)); | |
| 3426 | #if defined(__GLIBC__) || defined(__EMX__) | |
| 3427 | if (PL_reentrant_buffer->_crypt_struct_buffer) { | |
| 3428 | PL_reentrant_buffer->_crypt_struct_buffer->initialized = 0; | |
| 3429 | /* work around glibc-2.2.5 bug */ | |
| 3430 | PL_reentrant_buffer->_crypt_struct_buffer->current_saltbits = 0; | |
| 3431 | } | |
| 05404ffe | 3432 | #endif |
| 6ab58e4d | 3433 | } |
| 05404ffe JH |
3434 | # endif /* HAS_CRYPT_R */ |
| 3435 | # endif /* USE_ITHREADS */ | |
| 5f74f29c | 3436 | # ifdef FCRYPT |
| 83003860 | 3437 | sv_setpv(TARG, fcrypt(tmps, SvPV_nolen_const(right))); |
| 5f74f29c | 3438 | # else |
| 83003860 | 3439 | sv_setpv(TARG, PerlProc_crypt(tmps, SvPV_nolen_const(right))); |
| 5f74f29c | 3440 | # endif |
| 4808266b JH |
3441 | SETs(TARG); |
| 3442 | RETURN; | |
| 79072805 | 3443 | #else |
| b13b2135 | 3444 | DIE(aTHX_ |
| 79072805 LW |
3445 | "The crypt() function is unimplemented due to excessive paranoia."); |
| 3446 | #endif | |
| 79072805 LW |
3447 | } |
| 3448 | ||
| 3449 | PP(pp_ucfirst) | |
| 3450 | { | |
| 97aff369 | 3451 | dVAR; |
| 39644a26 | 3452 | dSP; |
| d54190f6 | 3453 | SV *source = TOPs; |
| a0ed51b3 | 3454 | STRLEN slen; |
| d54190f6 NC |
3455 | STRLEN need; |
| 3456 | SV *dest; | |
| 3457 | bool inplace = TRUE; | |
| 3458 | bool doing_utf8; | |
| 12e9c124 | 3459 | const int op_type = PL_op->op_type; |
| d54190f6 NC |
3460 | const U8 *s; |
| 3461 | U8 *d; | |
| 3462 | U8 tmpbuf[UTF8_MAXBYTES_CASE+1]; | |
| 3463 | STRLEN ulen; | |
| 3464 | STRLEN tculen; | |
| 3465 | ||
| 3466 | SvGETMAGIC(source); | |
| 3467 | if (SvOK(source)) { | |
| 3468 | s = (const U8*)SvPV_nomg_const(source, slen); | |
| 3469 | } else { | |
| 1eced8f8 | 3470 | s = (const U8*)""; |
| d54190f6 NC |
3471 | slen = 0; |
| 3472 | } | |
| a0ed51b3 | 3473 | |
| d54190f6 NC |
3474 | if (slen && DO_UTF8(source) && UTF8_IS_START(*s)) { |
| 3475 | doing_utf8 = TRUE; | |
| 44bc797b | 3476 | utf8_to_uvchr(s, &ulen); |
| 12e9c124 NC |
3477 | if (op_type == OP_UCFIRST) { |
| 3478 | toTITLE_utf8(s, tmpbuf, &tculen); | |
| 3479 | } else { | |
| 3480 | toLOWER_utf8(s, tmpbuf, &tculen); | |
| 3481 | } | |
| d54190f6 | 3482 | /* If the two differ, we definately cannot do inplace. */ |
| 1eced8f8 | 3483 | inplace = (ulen == tculen); |
| d54190f6 NC |
3484 | need = slen + 1 - ulen + tculen; |
| 3485 | } else { | |
| 3486 | doing_utf8 = FALSE; | |
| 3487 | need = slen + 1; | |
| 3488 | } | |
| 3489 | ||
| 3490 | if (SvPADTMP(source) && !SvREADONLY(source) && inplace) { | |
| 3491 | /* We can convert in place. */ | |
| 3492 | ||
| 3493 | dest = source; | |
| 3494 | s = d = (U8*)SvPV_force_nomg(source, slen); | |
| 3495 | } else { | |
| 3496 | dTARGET; | |
| 3497 | ||
| 3498 | dest = TARG; | |
| 3499 | ||
| 3500 | SvUPGRADE(dest, SVt_PV); | |
| 3b416f41 | 3501 | d = (U8*)SvGROW(dest, need); |
| d54190f6 NC |
3502 | (void)SvPOK_only(dest); |
| 3503 | ||
| 3504 | SETs(dest); | |
| 3505 | ||
| 3506 | inplace = FALSE; | |
| 3507 | } | |
| 44bc797b | 3508 | |
| d54190f6 NC |
3509 | if (doing_utf8) { |
| 3510 | if(!inplace) { | |
| 3a2263fe RGS |
3511 | /* slen is the byte length of the whole SV. |
| 3512 | * ulen is the byte length of the original Unicode character | |
| 3513 | * stored as UTF-8 at s. | |
| 12e9c124 NC |
3514 | * tculen is the byte length of the freshly titlecased (or |
| 3515 | * lowercased) Unicode character stored as UTF-8 at tmpbuf. | |
| 3516 | * We first set the result to be the titlecased (/lowercased) | |
| 3517 | * character, and then append the rest of the SV data. */ | |
| d54190f6 | 3518 | sv_setpvn(dest, (char*)tmpbuf, tculen); |
| 3a2263fe | 3519 | if (slen > ulen) |
| d54190f6 NC |
3520 | sv_catpvn(dest, (char*)(s + ulen), slen - ulen); |
| 3521 | SvUTF8_on(dest); | |
| a0ed51b3 LW |
3522 | } |
| 3523 | else { | |
| d54190f6 NC |
3524 | Copy(tmpbuf, d, tculen, U8); |
| 3525 | SvCUR_set(dest, need - 1); | |
| a0ed51b3 | 3526 | } |
| a0ed51b3 | 3527 | } |
| 626727d5 | 3528 | else { |
| d54190f6 | 3529 | if (*s) { |
| 2de3dbcc | 3530 | if (IN_LOCALE_RUNTIME) { |
| 31351b04 | 3531 | TAINT; |
| d54190f6 NC |
3532 | SvTAINTED_on(dest); |
| 3533 | *d = (op_type == OP_UCFIRST) | |
| 3534 | ? toUPPER_LC(*s) : toLOWER_LC(*s); | |
| 31351b04 JS |
3535 | } |
| 3536 | else | |
| d54190f6 NC |
3537 | *d = (op_type == OP_UCFIRST) ? toUPPER(*s) : toLOWER(*s); |
| 3538 | } else { | |
| 3539 | /* See bug #39028 */ | |
| 3540 | *d = *s; | |
| 3541 | } | |
| 3542 | ||
| 3543 | if (SvUTF8(source)) | |
| 3544 | SvUTF8_on(dest); | |
| 3545 | ||
| 3546 | if (!inplace) { | |
| 3547 | /* This will copy the trailing NUL */ | |
| 3548 | Copy(s + 1, d + 1, slen, U8); | |
| 3549 | SvCUR_set(dest, need - 1); | |
| bbce6d69 | 3550 | } |
| bbce6d69 | 3551 | } |
| d54190f6 | 3552 | SvSETMAGIC(dest); |
| 79072805 LW |
3553 | RETURN; |
| 3554 | } | |
| 3555 | ||
| 67306194 NC |
3556 | /* There's so much setup/teardown code common between uc and lc, I wonder if |
| 3557 | it would be worth merging the two, and just having a switch outside each | |
| 3558 | of the three tight loops. */ | |
| 79072805 LW |
3559 | PP(pp_uc) |
| 3560 | { | |
| 97aff369 | 3561 | dVAR; |
| 39644a26 | 3562 | dSP; |
| 67306194 | 3563 | SV *source = TOPs; |
| 463ee0b2 | 3564 | STRLEN len; |
| 67306194 NC |
3565 | STRLEN min; |
| 3566 | SV *dest; | |
| 3567 | const U8 *s; | |
| 3568 | U8 *d; | |
| 79072805 | 3569 | |
| 67306194 NC |
3570 | SvGETMAGIC(source); |
| 3571 | ||
| 3572 | if (SvPADTMP(source) && !SvREADONLY(source) && !SvAMAGIC(source) | |
| 3573 | && !DO_UTF8(source)) { | |
| 3574 | /* We can convert in place. */ | |
| 3575 | ||
| 3576 | dest = source; | |
| 3577 | s = d = (U8*)SvPV_force_nomg(source, len); | |
| 3578 | min = len + 1; | |
| 3579 | } else { | |
| a0ed51b3 | 3580 | dTARGET; |
| a0ed51b3 | 3581 | |
| 67306194 | 3582 | dest = TARG; |
| 128c9517 | 3583 | |
| 67306194 NC |
3584 | /* The old implementation would copy source into TARG at this point. |
| 3585 | This had the side effect that if source was undef, TARG was now | |
| 3586 | an undefined SV with PADTMP set, and they don't warn inside | |
| 3587 | sv_2pv_flags(). However, we're now getting the PV direct from | |
| 3588 | source, which doesn't have PADTMP set, so it would warn. Hence the | |
| 3589 | little games. */ | |
| 3590 | ||
| 3591 | if (SvOK(source)) { | |
| 3592 | s = (const U8*)SvPV_nomg_const(source, len); | |
| 3593 | } else { | |
| 1eced8f8 | 3594 | s = (const U8*)""; |
| 67306194 | 3595 | len = 0; |
| a0ed51b3 | 3596 | } |
| 67306194 NC |
3597 | min = len + 1; |
| 3598 | ||
| 3599 | SvUPGRADE(dest, SVt_PV); | |
| 3b416f41 | 3600 | d = (U8*)SvGROW(dest, min); |
| 67306194 NC |
3601 | (void)SvPOK_only(dest); |
| 3602 | ||
| 3603 | SETs(dest); | |
| a0ed51b3 | 3604 | } |
| 31351b04 | 3605 | |
| 67306194 NC |
3606 | /* Overloaded values may have toggled the UTF-8 flag on source, so we need |
| 3607 | to check DO_UTF8 again here. */ | |
| 3608 | ||
| 3609 | if (DO_UTF8(source)) { | |
| 3610 | const U8 *const send = s + len; | |
| 3611 | U8 tmpbuf[UTF8_MAXBYTES+1]; | |
| 3612 | ||
| 3613 | while (s < send) { | |
| 3614 | const STRLEN u = UTF8SKIP(s); | |
| 3615 | STRLEN ulen; | |
| 3616 | ||
| 3617 | toUPPER_utf8(s, tmpbuf, &ulen); | |
| 3618 | if (ulen > u && (SvLEN(dest) < (min += ulen - u))) { | |
| 3619 | /* If the eventually required minimum size outgrows | |
| 3620 | * the available space, we need to grow. */ | |
| 3621 | const UV o = d - (U8*)SvPVX_const(dest); | |
| 3622 | ||
| 3623 | /* If someone uppercases one million U+03B0s we SvGROW() one | |
| 3624 | * million times. Or we could try guessing how much to | |
| 3625 | allocate without allocating too much. Such is life. */ | |
| 3626 | SvGROW(dest, min); | |
| 3627 | d = (U8*)SvPVX(dest) + o; | |
| 3628 | } | |
| 3629 | Copy(tmpbuf, d, ulen, U8); | |
| 3630 | d += ulen; | |
| 3631 | s += u; | |
| 3632 | } | |
| 3633 | SvUTF8_on(dest); | |
| 3634 | *d = '\0'; | |
| 3635 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); | |
| 3636 | } else { | |
| 3637 | if (len) { | |
| 3638 | const U8 *const send = s + len; | |
| 2de3dbcc | 3639 | if (IN_LOCALE_RUNTIME) { |
| 31351b04 | 3640 | TAINT; |
| 67306194 NC |
3641 | SvTAINTED_on(dest); |
| 3642 | for (; s < send; d++, s++) | |
| 3643 | *d = toUPPER_LC(*s); | |
| 31351b04 JS |
3644 | } |
| 3645 | else { | |
| 67306194 NC |
3646 | for (; s < send; d++, s++) |
| 3647 | *d = toUPPER(*s); | |
| 31351b04 | 3648 | } |
| bbce6d69 | 3649 | } |
| 67306194 NC |
3650 | if (source != dest) { |
| 3651 | *d = '\0'; | |
| 3652 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); | |
| 3653 | } | |
| 79072805 | 3654 | } |
| 67306194 | 3655 | SvSETMAGIC(dest); |
| 79072805 LW |
3656 | RETURN; |
| 3657 | } | |
| 3658 | ||
| 3659 | PP(pp_lc) | |
| 3660 | { | |
| 97aff369 | 3661 | dVAR; |
| 39644a26 | 3662 | dSP; |
| ec9af7d4 | 3663 | SV *source = TOPs; |
| 463ee0b2 | 3664 | STRLEN len; |
| ec9af7d4 NC |
3665 | STRLEN min; |
| 3666 | SV *dest; | |
| 3667 | const U8 *s; | |
| 3668 | U8 *d; | |
| 79072805 | 3669 | |
| ec9af7d4 NC |
3670 | SvGETMAGIC(source); |
| 3671 | ||
| 3672 | if (SvPADTMP(source) && !SvREADONLY(source) && !SvAMAGIC(source) | |
| 3673 | && !DO_UTF8(source)) { | |
| 3674 | /* We can convert in place. */ | |
| 3675 | ||
| 3676 | dest = source; | |
| 3677 | s = d = (U8*)SvPV_force_nomg(source, len); | |
| 3678 | min = len + 1; | |
| 3679 | } else { | |
| a0ed51b3 | 3680 | dTARGET; |
| a0ed51b3 | 3681 | |
| ec9af7d4 NC |
3682 | dest = TARG; |
| 3683 | ||
| 3684 | /* The old implementation would copy source into TARG at this point. |