3 * Copyright (c) 1991-1997, Larry Wall
5 * You may distribute under the terms of either the GNU General Public
6 * License or the Artistic License, as specified in the README file.
11 * "It's a big house this, and very peculiar. Always a bit more to discover,
12 * and no knowing what you'll find around a corner. And Elves, sir!" --Samwise
19 * The compiler on Concurrent CX/UX systems has a subtle bug which only
20 * seems to show up when compiling pp.c - it generates the wrong double
21 * precision constant value for (double)UV_MAX when used inline in the body
22 * of the code below, so this makes a static variable up front (which the
23 * compiler seems to get correct) and uses it in place of UV_MAX below.
25 #ifdef CXUX_BROKEN_CONSTANT_CONVERT
26 static double UV_MAX_cxux = ((double)UV_MAX);
30 * Types used in bitwise operations.
32 * Normally we'd just use IV and UV. However, some hardware and
33 * software combinations (e.g. Alpha and current OSF/1) don't have a
34 * floating-point type to use for NV that has adequate bits to fully
35 * hold an IV/UV. (In other words, sizeof(long) == sizeof(double).)
37 * It just so happens that "int" is the right size almost everywhere.
43 * Mask used after bitwise operations.
45 * There is at least one realm (Cray word machines) that doesn't
46 * have an integral type (except char) small enough to be represented
47 * in a double without loss; that is, it has no 32-bit type.
49 #if BYTEORDER > 0xFFFF && defined(_CRAY) && !defined(_CRAYMPP)
51 # define BW_MASK ((1 << BW_BITS) - 1)
52 # define BW_SIGN (1 << (BW_BITS - 1))
53 # define BWi(i) (((i) & BW_SIGN) ? ((i) | ~BW_MASK) : ((i) & BW_MASK))
54 # define BWu(u) ((u) & BW_MASK)
61 * Offset for integer pack/unpack.
63 * On architectures where I16 and I32 aren't really 16 and 32 bits,
64 * which for now are all Crays, pack and unpack have to play games.
68 * These values are required for portability of pack() output.
69 * If they're not right on your machine, then pack() and unpack()
70 * wouldn't work right anyway; you'll need to apply the Cray hack.
71 * (I'd like to check them with #if, but you can't use sizeof() in
72 * the preprocessor.) --???
75 The appropriate SHORTSIZE, INTSIZE, LONGSIZE, and LONGLONGSIZE
76 defines are now in config.h. --Andy Dougherty April 1998
81 #if BYTEORDER > 0xFFFF && defined(_CRAY) && !defined(_CRAYMPP)
82 # if BYTEORDER == 0x12345678
83 # define OFF16(p) (char*)(p)
84 # define OFF32(p) (char*)(p)
86 # if BYTEORDER == 0x87654321
87 # define OFF16(p) ((char*)(p) + (sizeof(U16) - SIZE16))
88 # define OFF32(p) ((char*)(p) + (sizeof(U32) - SIZE32))
90 }}}} bad cray byte order
93 # define COPY16(s,p) (*(p) = 0, Copy(s, OFF16(p), SIZE16, char))
94 # define COPY32(s,p) (*(p) = 0, Copy(s, OFF32(p), SIZE32, char))
95 # define CAT16(sv,p) sv_catpvn(sv, OFF16(p), SIZE16)
96 # define CAT32(sv,p) sv_catpvn(sv, OFF32(p), SIZE32)
98 # define COPY16(s,p) Copy(s, p, SIZE16, char)
99 # define COPY32(s,p) Copy(s, p, SIZE32, char)
100 # define CAT16(sv,p) sv_catpvn(sv, (char*)(p), SIZE16)
101 # define CAT32(sv,p) sv_catpvn(sv, (char*)(p), SIZE32)
105 static void doencodes _((SV* sv, char* s, I32 len));
106 static SV* refto _((SV* sv));
107 static U32 seed _((void));
110 static bool srand_called = FALSE;
112 /* variations on pp_null */
118 /* XXX I can't imagine anyone who doesn't have this actually _needs_
119 it, since pid_t is an integral type.
122 #ifdef NEED_GETPID_PROTO
123 extern Pid_t getpid (void);
129 if (GIMME_V == G_SCALAR)
144 if (op->op_private & OPpLVAL_INTRO)
145 SAVECLEARSV(curpad[op->op_targ]);
147 if (op->op_flags & OPf_REF) {
151 if (GIMME == G_ARRAY) {
152 I32 maxarg = AvFILL((AV*)TARG) + 1;
154 if (SvMAGICAL(TARG)) {
156 for (i=0; i < maxarg; i++) {
157 SV **svp = av_fetch((AV*)TARG, i, FALSE);
158 SP[i+1] = (svp) ? *svp : &sv_undef;
162 Copy(AvARRAY((AV*)TARG), SP+1, maxarg, SV*);
167 SV* sv = sv_newmortal();
168 I32 maxarg = AvFILL((AV*)TARG) + 1;
169 sv_setiv(sv, maxarg);
181 if (op->op_private & OPpLVAL_INTRO)
182 SAVECLEARSV(curpad[op->op_targ]);
183 if (op->op_flags & OPf_REF)
186 if (gimme == G_ARRAY) {
187 RETURNOP(do_kv(ARGS));
189 else if (gimme == G_SCALAR) {
190 SV* sv = sv_newmortal();
191 if (HvFILL((HV*)TARG))
192 sv_setpvf(sv, "%ld/%ld",
193 (long)HvFILL((HV*)TARG), (long)HvMAX((HV*)TARG) + 1);
203 DIE("NOT IMPL LINE %d",__LINE__);
215 if (SvTYPE(sv) == SVt_PVIO) {
216 GV *gv = (GV*) sv_newmortal();
217 gv_init(gv, 0, "", 0, 0);
218 GvIOp(gv) = (IO *)sv;
219 (void)SvREFCNT_inc(sv);
221 } else if (SvTYPE(sv) != SVt_PVGV)
222 DIE("Not a GLOB reference");
225 if (SvTYPE(sv) != SVt_PVGV) {
228 if (SvGMAGICAL(sv)) {
234 if (op->op_flags & OPf_REF ||
235 op->op_private & HINT_STRICT_REFS)
236 DIE(no_usym, "a symbol");
242 if (op->op_private & HINT_STRICT_REFS)
243 DIE(no_symref, sym, "a symbol");
244 sv = (SV*)gv_fetchpv(sym, TRUE, SVt_PVGV);
247 if (op->op_private & OPpLVAL_INTRO)
248 save_gp((GV*)sv, !(op->op_flags & OPf_SPECIAL));
260 switch (SvTYPE(sv)) {
264 DIE("Not a SCALAR reference");
271 if (SvTYPE(gv) != SVt_PVGV) {
272 if (SvGMAGICAL(sv)) {
278 if (op->op_flags & OPf_REF ||
279 op->op_private & HINT_STRICT_REFS)
280 DIE(no_usym, "a SCALAR");
286 if (op->op_private & HINT_STRICT_REFS)
287 DIE(no_symref, sym, "a SCALAR");
288 gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PV);
292 if (op->op_flags & OPf_MOD) {
293 if (op->op_private & OPpLVAL_INTRO)
294 sv = save_scalar((GV*)TOPs);
295 else if (op->op_private & OPpDEREF)
296 vivify_ref(sv, op->op_private & OPpDEREF);
306 SV *sv = AvARYLEN(av);
308 AvARYLEN(av) = sv = NEWSV(0,0);
309 sv_upgrade(sv, SVt_IV);
310 sv_magic(sv, (SV*)av, '#', Nullch, 0);
318 djSP; dTARGET; dPOPss;
320 if (op->op_flags & OPf_MOD) {
321 if (SvTYPE(TARG) < SVt_PVLV) {
322 sv_upgrade(TARG, SVt_PVLV);
323 sv_magic(TARG, Nullsv, '.', Nullch, 0);
328 PUSHs(TARG); /* no SvSETMAGIC */
334 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) {
335 mg = mg_find(sv, 'g');
336 if (mg && mg->mg_len >= 0) {
337 PUSHi(mg->mg_len + curcop->cop_arybase);
351 /* We usually try to add a non-existent subroutine in case of AUTOLOAD. */
352 /* (But not in defined().) */
353 CV *cv = sv_2cv(TOPs, &stash, &gv, !(op->op_flags & OPf_SPECIAL));
356 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
373 if (SvPOK(TOPs) && SvCUR(TOPs) >= 7) {
374 char *s = SvPVX(TOPs);
375 if (strnEQ(s, "CORE::", 6)) {
378 code = keyword(s + 6, SvCUR(TOPs) - 6);
379 if (code < 0) { /* Overridable. */
380 #define MAX_ARGS_OP ((sizeof(I32) - 1) * 2)
381 int i = 0, n = 0, seen_question = 0;
383 char str[ MAX_ARGS_OP * 2 + 2 ]; /* One ';', one '\0' */
385 while (i < MAXO) { /* The slow way. */
386 if (strEQ(s + 6, op_name[i]) || strEQ(s + 6, op_desc[i]))
390 goto nonesuch; /* Should not happen... */
392 oa = opargs[i] >> OASHIFT;
394 if (oa & OA_OPTIONAL) {
397 } else if (seen_question)
398 goto set; /* XXXX system, exec */
399 if ((oa & (OA_OPTIONAL - 1)) >= OA_AVREF
400 && (oa & (OA_OPTIONAL - 1)) <= OA_HVREF) {
403 /* What to do with R ((un)tie, tied, (sys)read, recv)? */
404 str[n++] = ("?$@@%&*$")[oa & (OA_OPTIONAL - 1)];
408 ret = sv_2mortal(newSVpv(str, n - 1));
409 } else if (code) /* Non-Overridable */
411 else { /* None such */
413 croak("Cannot find an opnumber for \"%s\"", s+6);
417 cv = sv_2cv(TOPs, &stash, &gv, FALSE);
419 ret = sv_2mortal(newSVpv(SvPVX(cv), SvCUR(cv)));
428 CV* cv = (CV*)curpad[op->op_targ];
430 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
446 if (GIMME != G_ARRAY) {
450 EXTEND_MORTAL(SP - MARK);
452 *MARK = refto(*MARK);
461 if (SvTYPE(sv) == SVt_PVLV && LvTYPE(sv) == 'y') {
464 if (!(sv = LvTARG(sv)))
467 else if (SvPADTMP(sv))
471 (void)SvREFCNT_inc(sv);
474 sv_upgrade(rv, SVt_RV);
488 if (sv && SvGMAGICAL(sv))
491 if (!sv || !SvROK(sv))
495 pv = sv_reftype(sv,TRUE);
496 PUSHp(pv, strlen(pv));
506 stash = curcop->cop_stash;
508 stash = gv_stashsv(POPs, TRUE);
510 (void)sv_bless(TOPs, stash);
527 switch (elem ? *elem : '\0')
530 if (strEQ(elem, "ARRAY"))
531 tmpRef = (SV*)GvAV(gv);
534 if (strEQ(elem, "CODE"))
535 tmpRef = (SV*)GvCVu(gv);
538 if (strEQ(elem, "FILEHANDLE")) /* XXX deprecate in 5.005 */
539 tmpRef = (SV*)GvIOp(gv);
542 if (strEQ(elem, "GLOB"))
546 if (strEQ(elem, "HASH"))
547 tmpRef = (SV*)GvHV(gv);
550 if (strEQ(elem, "IO"))
551 tmpRef = (SV*)GvIOp(gv);
554 if (strEQ(elem, "NAME"))
555 sv = newSVpv(GvNAME(gv), GvNAMELEN(gv));
558 if (strEQ(elem, "PACKAGE"))
559 sv = newSVpv(HvNAME(GvSTASH(gv)), 0);
562 if (strEQ(elem, "SCALAR"))
576 /* Pattern matching */
581 register UNOP *unop = cUNOP;
582 register unsigned char *s;
585 register I32 *sfirst;
589 if(unop->op_first && unop->op_first->op_type == OP_PUSHRE) {
590 PMOP *pm = (PMOP *)unop->op_first;
591 SV *rv = sv_newmortal();
592 sv = newSVrv(rv, "Regexp");
593 sv_magic(sv,(SV*)ReREFCNT_inc(pm->op_pmregexp),'r',0,0);
597 if (sv == lastscream) {
603 SvSCREAM_off(lastscream);
604 SvREFCNT_dec(lastscream);
606 lastscream = SvREFCNT_inc(sv);
609 s = (unsigned char*)(SvPV(sv, len));
613 if (pos > maxscream) {
615 maxscream = pos + 80;
616 New(301, screamfirst, 256, I32);
617 New(302, screamnext, maxscream, I32);
620 maxscream = pos + pos / 4;
621 Renew(screamnext, maxscream, I32);
625 sfirst = screamfirst;
628 if (!sfirst || !snext)
629 DIE("do_study: out of memory");
631 for (ch = 256; ch; --ch)
638 snext[pos] = sfirst[ch] - pos;
645 sv_magic(sv, Nullsv, 'g', Nullch, 0); /* piggyback on m//g magic */
654 if (op->op_flags & OPf_STACKED)
660 TARG = sv_newmortal();
661 PUSHi(do_trans(sv, op));
665 /* Lvalue operators. */
677 djSP; dMARK; dTARGET;
687 SETi(do_chomp(TOPs));
693 djSP; dMARK; dTARGET;
694 register I32 count = 0;
697 count += do_chomp(POPs);
708 if (!sv || !SvANY(sv))
710 switch (SvTYPE(sv)) {
712 if (AvMAX(sv) >= 0 || SvGMAGICAL(sv))
716 if (HvARRAY(sv) || SvGMAGICAL(sv))
720 if (CvROOT(sv) || CvXSUB(sv))
737 if (!op->op_private) {
746 if (SvTHINKFIRST(sv)) {
753 switch (SvTYPE(sv)) {
763 if (cv_const_sv((CV*)sv))
764 warn("Constant subroutine %s undefined",
765 CvANON((CV*)sv) ? "(anonymous)" : GvENAME(CvGV((CV*)sv)));
768 { GV* gv = (GV*)SvREFCNT_inc(CvGV((CV*)sv));
770 CvGV((CV*)sv) = gv; } /* let user-undef'd sub keep its identity */
774 sv_setsv(sv, &sv_undef);
777 if (SvTYPE(sv) >= SVt_PV && SvPVX(sv) && SvLEN(sv)) {
780 SvPV_set(sv, Nullch);
793 if (SvREADONLY(TOPs) || SvTYPE(TOPs) > SVt_PVLV)
795 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) &&
796 SvIVX(TOPs) != IV_MIN)
799 SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK);
810 if (SvREADONLY(TOPs) || SvTYPE(TOPs) > SVt_PVLV)
812 sv_setsv(TARG, TOPs);
813 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) &&
814 SvIVX(TOPs) != IV_MAX)
817 SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK);
831 if(SvREADONLY(TOPs) || SvTYPE(TOPs) > SVt_PVLV)
833 sv_setsv(TARG, TOPs);
834 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) &&
835 SvIVX(TOPs) != IV_MIN)
838 SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK);
847 /* Ordinary operators. */
851 djSP; dATARGET; tryAMAGICbin(pow,opASSIGN);
854 SETn( pow( left, right) );
861 djSP; dATARGET; tryAMAGICbin(mult,opASSIGN);
864 SETn( left * right );
871 djSP; dATARGET; tryAMAGICbin(div,opASSIGN);
876 DIE("Illegal division by zero");
878 /* insure that 20./5. == 4. */
881 if ((double)I_V(left) == left &&
882 (double)I_V(right) == right &&
883 (k = I_V(left)/I_V(right))*I_V(right) == I_V(left)) {
886 value = left / right;
890 value = left / right;
899 djSP; dATARGET; tryAMAGICbin(modulo,opASSIGN);
907 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs)) {
909 right = (right_neg = (i < 0)) ? -i : i;
913 right = U_V((right_neg = (n < 0)) ? -n : n);
916 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs)) {
918 left = (left_neg = (i < 0)) ? -i : i;
922 left = U_V((left_neg = (n < 0)) ? -n : n);
926 DIE("Illegal modulus zero");
929 if ((left_neg != right_neg) && ans)
932 /* XXX may warn: unary minus operator applied to unsigned type */
933 /* could change -foo to be (~foo)+1 instead */
934 if (ans <= ~((UV)IV_MAX)+1)
935 sv_setiv(TARG, ~ans+1);
937 sv_setnv(TARG, -(double)ans);
948 djSP; dATARGET; tryAMAGICbin(repeat,opASSIGN);
950 register I32 count = POPi;
951 if (GIMME == G_ARRAY && op->op_private & OPpREPEAT_DOLIST) {
953 I32 items = SP - MARK;
965 repeatcpy((char*)(MARK + items), (char*)MARK,
966 items * sizeof(SV*), count - 1);
972 else { /* Note: mark already snarfed by pp_list */
977 if (TARG == tmpstr && SvTHINKFIRST(tmpstr)) {
978 if (SvREADONLY(tmpstr) && curcop != &compiling)
979 DIE("Can't x= to readonly value");
983 SvSetSV(TARG, tmpstr);
984 SvPV_force(TARG, len);
989 SvGROW(TARG, (count * len) + 1);
990 repeatcpy(SvPVX(TARG) + len, SvPVX(TARG), len, count - 1);
991 SvCUR(TARG) *= count;
995 (void)SvPOK_only(TARG);
1004 djSP; dATARGET; tryAMAGICbin(subtr,opASSIGN);
1007 SETn( left - right );
1014 djSP; dATARGET; tryAMAGICbin(lshift,opASSIGN);
1017 if (op->op_private & HINT_INTEGER) {
1019 i = BWi(i) << shift;
1033 djSP; dATARGET; tryAMAGICbin(rshift,opASSIGN);
1036 if (op->op_private & HINT_INTEGER) {
1038 i = BWi(i) >> shift;
1052 djSP; tryAMAGICbinSET(lt,0);
1055 SETs(boolSV(TOPn < value));
1062 djSP; tryAMAGICbinSET(gt,0);
1065 SETs(boolSV(TOPn > value));
1072 djSP; tryAMAGICbinSET(le,0);
1075 SETs(boolSV(TOPn <= value));
1082 djSP; tryAMAGICbinSET(ge,0);
1085 SETs(boolSV(TOPn >= value));
1092 djSP; tryAMAGICbinSET(ne,0);
1095 SETs(boolSV(TOPn != value));
1102 djSP; dTARGET; tryAMAGICbin(ncmp,0);
1109 else if (left < right)
1111 else if (left > right)
1124 djSP; tryAMAGICbinSET(slt,0);
1127 int cmp = ((op->op_private & OPpLOCALE)
1128 ? sv_cmp_locale(left, right)
1129 : sv_cmp(left, right));
1130 SETs(boolSV(cmp < 0));
1137 djSP; tryAMAGICbinSET(sgt,0);
1140 int cmp = ((op->op_private & OPpLOCALE)
1141 ? sv_cmp_locale(left, right)
1142 : sv_cmp(left, right));
1143 SETs(boolSV(cmp > 0));
1150 djSP; tryAMAGICbinSET(sle,0);
1153 int cmp = ((op->op_private & OPpLOCALE)
1154 ? sv_cmp_locale(left, right)
1155 : sv_cmp(left, right));
1156 SETs(boolSV(cmp <= 0));
1163 djSP; tryAMAGICbinSET(sge,0);
1166 int cmp = ((op->op_private & OPpLOCALE)
1167 ? sv_cmp_locale(left, right)
1168 : sv_cmp(left, right));
1169 SETs(boolSV(cmp >= 0));
1176 djSP; tryAMAGICbinSET(seq,0);
1179 SETs(boolSV(sv_eq(left, right)));
1186 djSP; tryAMAGICbinSET(sne,0);
1189 SETs(boolSV(!sv_eq(left, right)));
1196 djSP; dTARGET; tryAMAGICbin(scmp,0);
1199 int cmp = ((op->op_private & OPpLOCALE)
1200 ? sv_cmp_locale(left, right)
1201 : sv_cmp(left, right));
1209 djSP; dATARGET; tryAMAGICbin(band,opASSIGN);
1212 if (SvNIOKp(left) || SvNIOKp(right)) {
1213 if (op->op_private & HINT_INTEGER) {
1214 IBW value = SvIV(left) & SvIV(right);
1218 UBW value = SvUV(left) & SvUV(right);
1223 do_vop(op->op_type, TARG, left, right);
1232 djSP; dATARGET; tryAMAGICbin(bxor,opASSIGN);
1235 if (SvNIOKp(left) || SvNIOKp(right)) {
1236 if (op->op_private & HINT_INTEGER) {
1237 IBW value = (USE_LEFT(left) ? SvIV(left) : 0) ^ SvIV(right);
1241 UBW value = (USE_LEFT(left) ? SvUV(left) : 0) ^ SvUV(right);
1246 do_vop(op->op_type, TARG, left, right);
1255 djSP; dATARGET; tryAMAGICbin(bor,opASSIGN);
1258 if (SvNIOKp(left) || SvNIOKp(right)) {
1259 if (op->op_private & HINT_INTEGER) {
1260 IBW value = (USE_LEFT(left) ? SvIV(left) : 0) | SvIV(right);
1264 UBW value = (USE_LEFT(left) ? SvUV(left) : 0) | SvUV(right);
1269 do_vop(op->op_type, TARG, left, right);
1278 djSP; dTARGET; tryAMAGICun(neg);
1283 if (SvIOKp(sv) && !SvNOKp(sv) && !SvPOKp(sv) && SvIVX(sv) != IV_MIN)
1285 else if (SvNIOKp(sv))
1287 else if (SvPOKp(sv)) {
1289 char *s = SvPV(sv, len);
1290 if (isIDFIRST(*s)) {
1291 sv_setpvn(TARG, "-", 1);
1294 else if (*s == '+' || *s == '-') {
1296 *SvPV_force(TARG, len) = *s == '-' ? '+' : '-';
1299 sv_setnv(TARG, -SvNV(sv));
1311 djSP; tryAMAGICunSET(not);
1312 #endif /* OVERLOAD */
1313 *stack_sp = boolSV(!SvTRUE(*stack_sp));
1319 djSP; dTARGET; tryAMAGICun(compl);
1323 if (op->op_private & HINT_INTEGER) {
1324 IBW value = ~SvIV(sv);
1328 UBW value = ~SvUV(sv);
1333 register char *tmps;
1334 register long *tmpl;
1339 tmps = SvPV_force(TARG, len);
1342 for ( ; anum && (unsigned long)tmps % sizeof(long); anum--, tmps++)
1345 for ( ; anum >= sizeof(long); anum -= sizeof(long), tmpl++)
1349 for ( ; anum > 0; anum--, tmps++)
1358 /* integer versions of some of the above */
1362 djSP; dATARGET; tryAMAGICbin(mult,opASSIGN);
1365 SETi( left * right );
1372 djSP; dATARGET; tryAMAGICbin(div,opASSIGN);
1376 DIE("Illegal division by zero");
1377 value = POPi / value;
1385 djSP; dATARGET; tryAMAGICbin(modulo,opASSIGN);
1389 DIE("Illegal modulus zero");
1390 SETi( left % right );
1397 djSP; dATARGET; tryAMAGICbin(add,opASSIGN);
1400 SETi( left + right );
1407 djSP; dATARGET; tryAMAGICbin(subtr,opASSIGN);
1410 SETi( left - right );
1417 djSP; tryAMAGICbinSET(lt,0);
1420 SETs(boolSV(left < right));
1427 djSP; tryAMAGICbinSET(gt,0);
1430 SETs(boolSV(left > right));
1437 djSP; tryAMAGICbinSET(le,0);
1440 SETs(boolSV(left <= right));
1447 djSP; tryAMAGICbinSET(ge,0);
1450 SETs(boolSV(left >= right));
1457 djSP; tryAMAGICbinSET(eq,0);
1460 SETs(boolSV(left == right));
1467 djSP; tryAMAGICbinSET(ne,0);
1470 SETs(boolSV(left != right));
1477 djSP; dTARGET; tryAMAGICbin(ncmp,0);
1484 else if (left < right)
1495 djSP; dTARGET; tryAMAGICun(neg);
1500 /* High falutin' math. */
1504 djSP; dTARGET; tryAMAGICbin(atan2,0);
1507 SETn(atan2(left, right));
1514 djSP; dTARGET; tryAMAGICun(sin);
1526 djSP; dTARGET; tryAMAGICun(cos);
1546 if (!srand_called) {
1547 (void)srand((unsigned)seed());
1548 srand_called = TRUE;
1551 value = rand() * value / 2147483648.0;
1554 value = rand() * value / 65536.0;
1557 value = rand() * value / 32768.0;
1559 value = rand() * value / (double)(((unsigned long)1) << RANDBITS);
1575 (void)srand((unsigned)anum);
1576 srand_called = TRUE;
1585 * This is really just a quick hack which grabs various garbage
1586 * values. It really should be a real hash algorithm which
1587 * spreads the effect of every input bit onto every output bit,
1588 * if someone who knows about such tings would bother to write it.
1589 * Might be a good idea to add that function to CORE as well.
1590 * No numbers below come from careful analysis or anyting here,
1591 * except they are primes and SEED_C1 > 1E6 to get a full-width
1592 * value from (tv_sec * SEED_C1 + tv_usec). The multipliers should
1593 * probably be bigger too.
1596 # define SEED_C1 1000003
1597 #define SEED_C4 73819
1599 # define SEED_C1 25747
1600 #define SEED_C4 20639
1604 #define SEED_C5 26107
1609 # include <starlet.h>
1610 /* when[] = (low 32 bits, high 32 bits) of time since epoch
1611 * in 100-ns units, typically incremented ever 10 ms. */
1612 unsigned int when[2];
1613 _ckvmssts(sys$gettim(when));
1614 u = (U32)SEED_C1 * when[0] + (U32)SEED_C2 * when[1];
1616 # ifdef HAS_GETTIMEOFDAY
1617 struct timeval when;
1618 gettimeofday(&when,(struct timezone *) 0);
1619 u = (U32)SEED_C1 * when.tv_sec + (U32)SEED_C2 * when.tv_usec;
1623 u = (U32)SEED_C1 * when;
1626 u += SEED_C3 * (U32)getpid();
1627 u += SEED_C4 * (U32)(UV)stack_sp;
1628 #ifndef PLAN9 /* XXX Plan9 assembler chokes on this; fix needed */
1629 u += SEED_C5 * (U32)(UV)&when;
1636 djSP; dTARGET; tryAMAGICun(exp);
1648 djSP; dTARGET; tryAMAGICun(log);
1653 SET_NUMERIC_STANDARD();
1654 DIE("Can't take log of %g", value);
1664 djSP; dTARGET; tryAMAGICun(sqrt);
1669 SET_NUMERIC_STANDARD();
1670 DIE("Can't take sqrt of %g", value);
1672 value = sqrt(value);
1682 double value = TOPn;
1685 if (SvIOKp(TOPs) && !SvNOKp(TOPs) && !SvPOKp(TOPs)) {
1691 (void)modf(value, &value);
1693 (void)modf(-value, &value);
1708 djSP; dTARGET; tryAMAGICun(abs);
1710 double value = TOPn;
1713 if (SvIOKp(TOPs) && !SvNOKp(TOPs) && !SvPOKp(TOPs) &&
1714 (iv = SvIVX(TOPs)) != IV_MIN) {
1735 XPUSHu(scan_hex(tmps, 99, &argtype));
1747 while (*tmps && isSPACE(*tmps))
1752 value = scan_hex(++tmps, 99, &argtype);
1754 value = scan_oct(tmps, 99, &argtype);
1764 SETi( sv_len(TOPs) );
1777 I32 lvalue = op->op_flags & OPf_MOD;
1779 I32 arybase = curcop->cop_arybase;
1786 tmps = SvPV(sv, curlen);
1787 if (pos >= arybase) {
1805 else if (len >= 0) {
1807 if (rem > (I32)curlen)
1821 if (dowarn || lvalue)
1822 warn("substr outside of string");
1827 sv_setpvn(TARG, tmps, rem);
1828 if (lvalue) { /* it's an lvalue! */
1829 if (!SvGMAGICAL(sv)) {
1833 warn("Attempt to use reference as lvalue in substr");
1835 if (SvOK(sv)) /* is it defined ? */
1836 (void)SvPOK_only(sv);
1838 sv_setpvn(sv,"",0); /* avoid lexical reincarnation */
1841 if (SvTYPE(TARG) < SVt_PVLV) {
1842 sv_upgrade(TARG, SVt_PVLV);
1843 sv_magic(TARG, Nullsv, 'x', Nullch, 0);
1848 LvTARGOFF(TARG) = pos;
1849 LvTARGLEN(TARG) = rem;
1853 PUSHs(TARG); /* avoid SvSETMAGIC here */
1860 register I32 size = POPi;
1861 register I32 offset = POPi;
1862 register SV *src = POPs;
1863 I32 lvalue = op->op_flags & OPf_MOD;
1865 unsigned char *s = (unsigned char*)SvPV(src, srclen);
1866 unsigned long retnum;
1869 offset *= size; /* turn into bit offset */
1870 len = (offset + size + 7) / 8;
1871 if (offset < 0 || size < 1)
1874 if (lvalue) { /* it's an lvalue! */
1875 if (SvTYPE(TARG) < SVt_PVLV) {
1876 sv_upgrade(TARG, SVt_PVLV);
1877 sv_magic(TARG, Nullsv, 'v', Nullch, 0);
1882 LvTARGOFF(TARG) = offset;
1883 LvTARGLEN(TARG) = size;
1891 if (offset >= srclen)
1894 retnum = (unsigned long) s[offset] << 8;
1896 else if (size == 32) {
1897 if (offset >= srclen)
1899 else if (offset + 1 >= srclen)
1900 retnum = (unsigned long) s[offset] << 24;
1901 else if (offset + 2 >= srclen)
1902 retnum = ((unsigned long) s[offset] << 24) +
1903 ((unsigned long) s[offset + 1] << 16);
1905 retnum = ((unsigned long) s[offset] << 24) +
1906 ((unsigned long) s[offset + 1] << 16) +
1907 (s[offset + 2] << 8);
1912 retnum = (s[offset >> 3] >> (offset & 7)) & ((1 << size) - 1);
1917 else if (size == 16)
1918 retnum = ((unsigned long) s[offset] << 8) + s[offset+1];
1919 else if (size == 32)
1920 retnum = ((unsigned long) s[offset] << 24) +
1921 ((unsigned long) s[offset + 1] << 16) +
1922 (s[offset + 2] << 8) + s[offset+3];
1926 sv_setuv(TARG, (UV)retnum);
1941 I32 arybase = curcop->cop_arybase;
1946 offset = POPi - arybase;
1949 tmps = SvPV(big, biglen);
1952 else if (offset > biglen)
1954 if (!(tmps2 = fbm_instr((unsigned char*)tmps + offset,
1955 (unsigned char*)tmps + biglen, little)))
1956 retval = -1 + arybase;
1958 retval = tmps2 - tmps + arybase;
1975 I32 arybase = curcop->cop_arybase;
1981 tmps2 = SvPV(little, llen);
1982 tmps = SvPV(big, blen);
1986 offset = SvIV(offstr) - arybase + llen;
1989 else if (offset > blen)
1991 if (!(tmps2 = rninstr(tmps, tmps + offset,
1992 tmps2, tmps2 + llen)))
1993 retval = -1 + arybase;
1995 retval = tmps2 - tmps + arybase;
2002 djSP; dMARK; dORIGMARK; dTARGET;
2003 #ifdef USE_LOCALE_NUMERIC
2004 if (op->op_private & OPpLOCALE)
2005 SET_NUMERIC_LOCAL();
2007 SET_NUMERIC_STANDARD();
2009 do_sprintf(TARG, SP-MARK, MARK+1);
2010 TAINT_IF(SvTAINTED(TARG));
2024 value = (I32) (*tmps & 255);
2029 value = (I32) (anum & 255);
2040 (void)SvUPGRADE(TARG,SVt_PV);
2046 (void)SvPOK_only(TARG);
2053 djSP; dTARGET; dPOPTOPssrl;
2055 char *tmps = SvPV(left, na);
2057 sv_setpv(TARG, fcrypt(tmps, SvPV(right, na)));
2059 sv_setpv(TARG, crypt(tmps, SvPV(right, na)));
2063 "The crypt() function is unimplemented due to excessive paranoia.");
2075 if (!SvPADTMP(sv)) {
2081 s = SvPV_force(sv, na);
2083 if (op->op_private & OPpLOCALE) {
2086 *s = toUPPER_LC(*s);
2101 if (!SvPADTMP(sv)) {
2107 s = SvPV_force(sv, na);
2109 if (op->op_private & OPpLOCALE) {
2112 *s = toLOWER_LC(*s);
2129 if (!SvPADTMP(sv)) {
2136 s = SvPV_force(sv, len);
2138 register char *send = s + len;
2140 if (op->op_private & OPpLOCALE) {
2143 for (; s < send; s++)
2144 *s = toUPPER_LC(*s);
2147 for (; s < send; s++)
2161 if (!SvPADTMP(sv)) {
2168 s = SvPV_force(sv, len);
2170 register char *send = s + len;
2172 if (op->op_private & OPpLOCALE) {
2175 for (; s < send; s++)
2176 *s = toLOWER_LC(*s);
2179 for (; s < send; s++)
2191 register char *s = SvPV(sv,len);
2195 (void)SvUPGRADE(TARG, SVt_PV);
2196 SvGROW(TARG, (len * 2) + 1);
2204 SvCUR_set(TARG, d - SvPVX(TARG));
2205 (void)SvPOK_only(TARG);
2208 sv_setpvn(TARG, s, len);
2217 djSP; dMARK; dORIGMARK;
2219 register AV* av = (AV*)POPs;
2220 register I32 lval = op->op_flags & OPf_MOD;
2221 I32 arybase = curcop->cop_arybase;
2224 if (SvTYPE(av) == SVt_PVAV) {
2225 if (lval && op->op_private & OPpLVAL_INTRO) {
2227 for (svp = MARK + 1; svp <= SP; svp++) {
2232 if (max > AvMAX(av))
2235 while (++MARK <= SP) {
2236 elem = SvIVx(*MARK);
2240 svp = av_fetch(av, elem, lval);
2242 if (!svp || *svp == &sv_undef)
2243 DIE(no_aelem, elem);
2244 if (op->op_private & OPpLVAL_INTRO)
2245 save_aelem(av, elem, svp);
2247 *MARK = svp ? *svp : &sv_undef;
2250 if (GIMME != G_ARRAY) {
2258 /* Associative arrays. */
2263 HV *hash = (HV*)POPs;
2265 I32 gimme = GIMME_V;
2266 I32 realhv = (SvTYPE(hash) == SVt_PVHV);
2269 /* might clobber stack_sp */
2270 entry = realhv ? hv_iternext(hash) : avhv_iternext((AV*)hash);
2275 PUSHs(hv_iterkeysv(entry)); /* won't clobber stack_sp */
2276 if (gimme == G_ARRAY) {
2278 /* might clobber stack_sp */
2279 sv_setsv(TARG, realhv ?
2280 hv_iterval(hash, entry) : avhv_iterval((AV*)hash, entry));
2285 else if (gimme == G_SCALAR)
2304 I32 gimme = GIMME_V;
2305 I32 discard = (gimme == G_VOID) ? G_DISCARD : 0;
2309 if (op->op_private & OPpSLICE) {
2313 hvtype = SvTYPE(hv);
2314 while (++MARK <= SP) {
2315 if (hvtype == SVt_PVHV)
2316 sv = hv_delete_ent(hv, *MARK, discard, 0);
2317 else if (hvtype == SVt_PVAV)
2318 sv = avhv_delete_ent((AV*)hv, *MARK, discard, 0);
2320 DIE("Not a HASH reference");
2321 *MARK = sv ? sv : &sv_undef;
2325 else if (gimme == G_SCALAR) {
2334 if (SvTYPE(hv) == SVt_PVHV)
2335 sv = hv_delete_ent(hv, keysv, discard, 0);
2336 else if (SvTYPE(hv) == SVt_PVAV)
2337 sv = avhv_delete_ent((AV*)hv, keysv, discard, 0);
2339 DIE("Not a HASH reference");
2353 if (SvTYPE(hv) == SVt_PVHV) {
2354 if (hv_exists_ent(hv, tmpsv, 0))
2356 } else if (SvTYPE(hv) == SVt_PVAV) {
2357 if (avhv_exists_ent((AV*)hv, tmpsv, 0))
2360 DIE("Not a HASH reference");
2367 djSP; dMARK; dORIGMARK;
2369 register HV *hv = (HV*)POPs;
2370 register I32 lval = op->op_flags & OPf_MOD;
2371 I32 realhv = (SvTYPE(hv) == SVt_PVHV);
2373 if (realhv || SvTYPE(hv) == SVt_PVAV) {
2374 while (++MARK <= SP) {
2378 he = hv_fetch_ent(hv, keysv, lval, 0);
2379 svp = he ? &HeVAL(he) : 0;
2381 svp = avhv_fetch_ent((AV*)hv, keysv, lval, 0);
2384 if (!he || HeVAL(he) == &sv_undef)
2385 DIE(no_helem, SvPV(keysv, na));
2386 if (op->op_private & OPpLVAL_INTRO)
2387 save_helem(hv, keysv, &HeVAL(he));
2389 *MARK = he ? HeVAL(he) : &sv_undef;
2392 if (GIMME != G_ARRAY) {
2400 /* List operators. */
2405 if (GIMME != G_ARRAY) {
2407 *MARK = *SP; /* unwanted list, return last item */
2418 SV **lastrelem = stack_sp;
2419 SV **lastlelem = stack_base + POPMARK;
2420 SV **firstlelem = stack_base + POPMARK + 1;
2421 register SV **firstrelem = lastlelem + 1;
2422 I32 arybase = curcop->cop_arybase;
2423 I32 lval = op->op_flags & OPf_MOD;
2424 I32 is_something_there = lval;
2426 register I32 max = lastrelem - lastlelem;
2427 register SV **lelem;
2430 if (GIMME != G_ARRAY) {
2431 ix = SvIVx(*lastlelem);
2436 if (ix < 0 || ix >= max)
2437 *firstlelem = &sv_undef;
2439 *firstlelem = firstrelem[ix];
2445 SP = firstlelem - 1;
2449 for (lelem = firstlelem; lelem <= lastlelem; lelem++) {
2455 else if (!(*lelem = firstrelem[ix]))
2460 if (ix >= max || !(*lelem = firstrelem[ix]))
2463 if (!is_something_there && (SvOK(*lelem) || SvGMAGICAL(*lelem)))
2464 is_something_there = TRUE;
2466 if (is_something_there)
2469 SP = firstlelem - 1;
2475 djSP; dMARK; dORIGMARK;
2476 I32 items = SP - MARK;
2477 SV *av = sv_2mortal((SV*)av_make(items, MARK+1));
2478 SP = ORIGMARK; /* av_make() might realloc stack_sp */
2485 djSP; dMARK; dORIGMARK;
2486 HV* hv = (HV*)sv_2mortal((SV*)newHV());
2490 SV *val = NEWSV(46, 0);
2492 sv_setsv(val, *++MARK);
2494 warn("Odd number of elements in hash assignment");
2495 (void)hv_store_ent(hv,key,val,0);
2504 djSP; dMARK; dORIGMARK;
2505 register AV *ary = (AV*)*++MARK;
2509 register I32 offset;
2510 register I32 length;
2517 if (SvRMAGICAL(ary) && (mg = mg_find((SV*)ary,'P'))) {
2518 *MARK-- = mg->mg_obj;
2522 perl_call_method("SPLICE",GIMME_V);
2531 offset = i = SvIVx(*MARK);
2533 offset += AvFILLp(ary) + 1;
2535 offset -= curcop->cop_arybase;
2539 length = SvIVx(*MARK++);
2544 length = AvMAX(ary) + 1; /* close enough to infinity */
2548 length = AvMAX(ary) + 1;
2550 if (offset > AvFILLp(ary) + 1)
2551 offset = AvFILLp(ary) + 1;
2552 after = AvFILLp(ary) + 1 - (offset + length);
2553 if (after < 0) { /* not that much array */
2554 length += after; /* offset+length now in array */
2560 /* At this point, MARK .. SP-1 is our new LIST */
2563 diff = newlen - length;
2564 if (newlen && !AvREAL(ary)) {
2568 assert(AvREAL(ary)); /* would leak, so croak */
2571 if (diff < 0) { /* shrinking the area */
2573 New(451, tmparyval, newlen, SV*); /* so remember insertion */
2574 Copy(MARK, tmparyval, newlen, SV*);
2577 MARK = ORIGMARK + 1;
2578 if (GIMME == G_ARRAY) { /* copy return vals to stack */
2579 MEXTEND(MARK, length);
2580 Copy(AvARRAY(ary)+offset, MARK, length, SV*);
2582 EXTEND_MORTAL(length);
2583 for (i = length, dst = MARK; i; i--) {
2584 if (!SvIMMORTAL(*dst))
2585 sv_2mortal(*dst); /* free them eventualy */
2592 *MARK = AvARRAY(ary)[offset+length-1];
2594 if (!SvIMMORTAL(*MARK))
2596 for (i = length - 1, dst = &AvARRAY(ary)[offset]; i > 0; i--)
2597 SvREFCNT_dec(*dst++); /* free them now */
2600 AvFILLp(ary) += diff;
2602 /* pull up or down? */
2604 if (offset < after) { /* easier to pull up */
2605 if (offset) { /* esp. if nothing to pull */
2606 src = &AvARRAY(ary)[offset-1];
2607 dst = src - diff; /* diff is negative */
2608 for (i = offset; i > 0; i--) /* can't trust Copy */
2612 SvPVX(ary) = (char*)(AvARRAY(ary) - diff); /* diff is negative */
2616 if (after) { /* anything to pull down? */
2617 src = AvARRAY(ary) + offset + length;
2618 dst = src + diff; /* diff is negative */
2619 Move(src, dst, after, SV*);
2621 dst = &AvARRAY(ary)[AvFILLp(ary)+1];
2622 /* avoid later double free */
2626 dst[--i] = &sv_undef;
2629 for (src = tmparyval, dst = AvARRAY(ary) + offset;
2631 *dst = NEWSV(46, 0);
2632 sv_setsv(*dst++, *src++);
2634 Safefree(tmparyval);
2637 else { /* no, expanding (or same) */
2639 New(452, tmparyval, length, SV*); /* so remember deletion */
2640 Copy(AvARRAY(ary)+offset, tmparyval, length, SV*);
2643 if (diff > 0) { /* expanding */
2645 /* push up or down? */
2647 if (offset < after && diff <= AvARRAY(ary) - AvALLOC(ary)) {
2651 Move(src, dst, offset, SV*);
2653 SvPVX(ary) = (char*)(AvARRAY(ary) - diff);/* diff is positive */
2655 AvFILLp(ary) += diff;
2658 if (AvFILLp(ary) + diff >= AvMAX(ary)) /* oh, well */
2659 av_extend(ary, AvFILLp(ary) + diff);
2660 AvFILLp(ary) += diff;
2663 dst = AvARRAY(ary) + AvFILLp(ary);
2665 for (i = after; i; i--) {
2672 for (src = MARK, dst = AvARRAY(ary) + offset; newlen; newlen--) {
2673 *dst = NEWSV(46, 0);
2674 sv_setsv(*dst++, *src++);
2676 MARK = ORIGMARK + 1;
2677 if (GIMME == G_ARRAY) { /* copy return vals to stack */
2679 Copy(tmparyval, MARK, length, SV*);
2681 EXTEND_MORTAL(length);
2682 for (i = length, dst = MARK; i; i--) {
2683 if (!SvIMMORTAL(*dst))
2684 sv_2mortal(*dst); /* free them eventualy */
2688 Safefree(tmparyval);
2692 else if (length--) {
2693 *MARK = tmparyval[length];
2695 if (!SvIMMORTAL(*MARK))
2697 while (length-- > 0)
2698 SvREFCNT_dec(tmparyval[length]);
2700 Safefree(tmparyval);
2711 djSP; dMARK; dORIGMARK; dTARGET;
2712 register AV *ary = (AV*)*++MARK;
2713 register SV *sv = &sv_undef;
2716 if (SvRMAGICAL(ary) && (mg = mg_find((SV*)ary,'P'))) {
2717 *MARK-- = mg->mg_obj;
2721 perl_call_method("PUSH",G_SCALAR|G_DISCARD);
2726 /* Why no pre-extend of ary here ? */
2727 for (++MARK; MARK <= SP; MARK++) {
2730 sv_setsv(sv, *MARK);
2735 PUSHi( AvFILL(ary) + 1 );
2743 SV *sv = av_pop(av);
2744 if (!SvIMMORTAL(sv) && AvREAL(av))
2745 (void)sv_2mortal(sv);
2754 SV *sv = av_shift(av);
2758 if (!SvIMMORTAL(sv) && AvREAL(av))
2759 (void)sv_2mortal(sv);
2766 djSP; dMARK; dORIGMARK; dTARGET;
2767 register AV *ary = (AV*)*++MARK;
2772 if (SvRMAGICAL(ary) && (mg = mg_find((SV*)ary,'P'))) {
2773 *MARK-- = mg->mg_obj;
2777 perl_call_method("UNSHIFT",G_SCALAR|G_DISCARD);
2782 av_unshift(ary, SP - MARK);
2785 sv_setsv(sv, *++MARK);
2786 (void)av_store(ary, i++, sv);
2790 PUSHi( AvFILL(ary) + 1 );
2800 if (GIMME == G_ARRAY) {
2811 register char *down;
2817 do_join(TARG, &sv_no, MARK, SP);
2819 sv_setsv(TARG, (SP > MARK) ? *SP : DEFSV);
2820 up = SvPV_force(TARG, len);
2822 down = SvPVX(TARG) + len - 1;
2828 (void)SvPOK_only(TARG);
2837 mul128(SV *sv, U8 m)
2840 char *s = SvPV(sv, len);
2844 if (!strnEQ(s, "0000", 4)) { /* need to grow sv */
2845 SV *tmpNew = newSVpv("0000000000", 10);
2847 sv_catsv(tmpNew, sv);
2848 SvREFCNT_dec(sv); /* free old sv */
2853 while (!*t) /* trailing '\0'? */
2856 i = ((*t - '0') << 7) + m;
2857 *(t--) = '0' + (i % 10);
2863 /* Explosives and implosives. */
2870 I32 gimme = GIMME_V;
2874 register char *pat = SvPV(left, llen);
2875 register char *s = SvPV(right, rlen);
2876 char *strend = s + rlen;
2878 register char *patend = pat + llen;
2883 /* These must not be in registers: */
2894 unsigned Quad_t auquad;
2900 register U32 culong;
2902 static char* bitcount = 0;
2905 if (gimme != G_ARRAY) { /* arrange to do first one only */
2907 for (patend = pat; !isALPHA(*patend) || *patend == 'x'; patend++) ;
2908 if (strchr("aAbBhHP", *patend) || *pat == '%') {
2910 while (isDIGIT(*patend) || *patend == '*')
2916 while (pat < patend) {
2918 datumtype = *pat++ & 0xFF;
2919 if (isSPACE(datumtype))
2923 else if (*pat == '*') {
2924 len = strend - strbeg; /* long enough */
2927 else if (isDIGIT(*pat)) {
2929 while (isDIGIT(*pat))
2930 len = (len * 10) + (*pat++ - '0');
2933 len = (datumtype != '@');
2936 croak("Invalid type in unpack: '%c'", (int)datumtype);
2937 case ',': /* grandfather in commas but with a warning */
2938 if (commas++ == 0 && dowarn)
2939 warn("Invalid type in unpack: '%c'", (int)datumtype);
2942 if (len == 1 && pat[-1] != '1')
2951 if (len > strend - strbeg)
2952 DIE("@ outside of string");
2956 if (len > s - strbeg)
2957 DIE("X outside of string");
2961 if (len > strend - s)
2962 DIE("x outside of string");
2967 if (len > strend - s)
2970 goto uchar_checksum;
2971 sv = NEWSV(35, len);
2972 sv_setpvn(sv, s, len);
2974 if (datumtype == 'A') {
2975 aptr = s; /* borrow register */
2976 s = SvPVX(sv) + len - 1;
2977 while (s >= SvPVX(sv) && (!*s || isSPACE(*s)))
2980 SvCUR_set(sv, s - SvPVX(sv));
2981 s = aptr; /* unborrow register */
2983 XPUSHs(sv_2mortal(sv));
2987 if (pat[-1] == '*' || len > (strend - s) * 8)
2988 len = (strend - s) * 8;
2991 Newz(601, bitcount, 256, char);
2992 for (bits = 1; bits < 256; bits++) {
2993 if (bits & 1) bitcount[bits]++;
2994 if (bits & 2) bitcount[bits]++;
2995 if (bits & 4) bitcount[bits]++;
2996 if (bits & 8) bitcount[bits]++;
2997 if (bits & 16) bitcount[bits]++;
2998 if (bits & 32) bitcount[bits]++;
2999 if (bits & 64) bitcount[bits]++;
3000 if (bits & 128) bitcount[bits]++;
3004 culong += bitcount[*(unsigned char*)s++];
3009 if (datumtype == 'b') {
3011 if (bits & 1) culong++;
3017 if (bits & 128) culong++;
3024 sv = NEWSV(35, len + 1);
3027 aptr = pat; /* borrow register */
3029 if (datumtype == 'b') {
3031 for (len = 0; len < aint; len++) {
3032 if (len & 7) /*SUPPRESS 595*/
3036 *pat++ = '0' + (bits & 1);
3041 for (len = 0; len < aint; len++) {
3046 *pat++ = '0' + ((bits & 128) != 0);
3050 pat = aptr; /* unborrow register */
3051 XPUSHs(sv_2mortal(sv));
3055 if (pat[-1] == '*' || len > (strend - s) * 2)
3056 len = (strend - s) * 2;
3057 sv = NEWSV(35, len + 1);
3060 aptr = pat; /* borrow register */
3062 if (datumtype == 'h') {
3064 for (len = 0; len < aint; len++) {
3069 *pat++ = hexdigit[bits & 15];
3074 for (len = 0; len < aint; len++) {
3079 *pat++ = hexdigit[(bits >> 4) & 15];
3083 pat = aptr; /* unborrow register */
3084 XPUSHs(sv_2mortal(sv));
3087 if (len > strend - s)
3092 if (aint >= 128) /* fake up signed chars */
3102 if (aint >= 128) /* fake up signed chars */
3105 sv_setiv(sv, (IV)aint);
3106 PUSHs(sv_2mortal(sv));
3111 if (len > strend - s)
3126 sv_setiv(sv, (IV)auint);
3127 PUSHs(sv_2mortal(sv));
3132 along = (strend - s) / SIZE16;
3149 sv_setiv(sv, (IV)ashort);
3150 PUSHs(sv_2mortal(sv));
3157 along = (strend - s) / SIZE16;
3162 COPY16(s, &aushort);
3165 if (datumtype == 'n')
3166 aushort = PerlSock_ntohs(aushort);
3169 if (datumtype == 'v')
3170 aushort = vtohs(aushort);
3179 COPY16(s, &aushort);
3183 if (datumtype == 'n')
3184 aushort = PerlSock_ntohs(aushort);
3187 if (datumtype == 'v')
3188 aushort = vtohs(aushort);
3190 sv_setiv(sv, (IV)aushort);
3191 PUSHs(sv_2mortal(sv));
3196 along = (strend - s) / sizeof(int);
3201 Copy(s, &aint, 1, int);
3204 cdouble += (double)aint;
3213 Copy(s, &aint, 1, int);
3216 sv_setiv(sv, (IV)aint);
3217 PUSHs(sv_2mortal(sv));
3222 along = (strend - s) / sizeof(unsigned int);
3227 Copy(s, &auint, 1, unsigned int);
3228 s += sizeof(unsigned int);
3230 cdouble += (double)auint;
3239 Copy(s, &auint, 1, unsigned int);
3240 s += sizeof(unsigned int);
3242 sv_setuv(sv, (UV)auint);
3243 PUSHs(sv_2mortal(sv));
3248 along = (strend - s) / SIZE32;
3256 cdouble += (double)along;
3268 sv_setiv(sv, (IV)along);
3269 PUSHs(sv_2mortal(sv));
3276 along = (strend - s) / SIZE32;
3284 if (datumtype == 'N')
3285 aulong = PerlSock_ntohl(aulong);
3288 if (datumtype == 'V')
3289 aulong = vtohl(aulong);
3292 cdouble += (double)aulong;
3304 if (datumtype == 'N')
3305 aulong = PerlSock_ntohl(aulong);
3308 if (datumtype == 'V')
3309 aulong = vtohl(aulong);
3312 sv_setuv(sv, (UV)aulong);
3313 PUSHs(sv_2mortal(sv));
3318 along = (strend - s) / sizeof(char*);
3324 if (sizeof(char*) > strend - s)
3327 Copy(s, &aptr, 1, char*);
3333 PUSHs(sv_2mortal(sv));
3343 while ((len > 0) && (s < strend)) {
3344 auv = (auv << 7) | (*s & 0x7f);
3345 if (!(*s++ & 0x80)) {
3349 PUSHs(sv_2mortal(sv));
3353 else if (++bytes >= sizeof(UV)) { /* promote to string */
3356 sv = newSVpvf("%.*Vu", (int)TYPE_DIGITS(UV), auv);
3357 while (s < strend) {
3358 sv = mul128(sv, *s & 0x7f);
3359 if (!(*s++ & 0x80)) {
3368 PUSHs(sv_2mortal(sv));
3373 if ((s >= strend) && bytes)
3374 croak("Unterminated compressed integer");
3379 if (sizeof(char*) > strend - s)
3382 Copy(s, &aptr, 1, char*);
3387 sv_setpvn(sv, aptr, len);
3388 PUSHs(sv_2mortal(sv));
3395 if (s + sizeof(Quad_t) > strend)
3398 Copy(s, &aquad, 1, Quad_t);
3399 s += sizeof(Quad_t);
3402 if (aquad >= IV_MIN && aquad <= IV_MAX)
3403 sv_setiv(sv, (IV)aquad);
3405 sv_setnv(sv, (double)aquad);
3406 PUSHs(sv_2mortal(sv));
3413 if (s + sizeof(unsigned Quad_t) > strend)
3416 Copy(s, &auquad, 1, unsigned Quad_t);
3417 s += sizeof(unsigned Quad_t);
3420 if (aquad <= UV_MAX)
3421 sv_setuv(sv, (UV)auquad);
3423 sv_setnv(sv, (double)auquad);
3424 PUSHs(sv_2mortal(sv));
3428 /* float and double added gnb@melba.bby.oz.au 22/11/89 */
3431 along = (strend - s) / sizeof(float);
3436 Copy(s, &afloat, 1, float);
3445 Copy(s, &afloat, 1, float);
3448 sv_setnv(sv, (double)afloat);
3449 PUSHs(sv_2mortal(sv));
3455 along = (strend - s) / sizeof(double);
3460 Copy(s, &adouble, 1, double);
3461 s += sizeof(double);
3469 Copy(s, &adouble, 1, double);
3470 s += sizeof(double);
3472 sv_setnv(sv, (double)adouble);
3473 PUSHs(sv_2mortal(sv));
3478 along = (strend - s) * 3 / 4;
3479 sv = NEWSV(42, along);
3482 while (s < strend && *s > ' ' && *s < 'a') {
3487 len = (*s++ - ' ') & 077;
3489 if (s < strend && *s >= ' ')
3490 a = (*s++ - ' ') & 077;
3493 if (s < strend && *s >= ' ')
3494 b = (*s++ - ' ') & 077;
3497 if (s < strend && *s >= ' ')
3498 c = (*s++ - ' ') & 077;
3501 if (s < strend && *s >= ' ')
3502 d = (*s++ - ' ') & 077;
3505 hunk[0] = (a << 2) | (b >> 4);
3506 hunk[1] = (b << 4) | (c >> 2);
3507 hunk[2] = (c << 6) | d;
3508 sv_catpvn(sv, hunk, (len > 3) ? 3 : len);
3513 else if (s[1] == '\n') /* possible checksum byte */
3516 XPUSHs(sv_2mortal(sv));
3521 if (strchr("fFdD", datumtype) ||
3522 (checksum > 32 && strchr("iIlLN", datumtype)) ) {
3526 while (checksum >= 16) {
3530 while (checksum >= 4) {
3536 along = (1 << checksum) - 1;
3537 while (cdouble < 0.0)
3539 cdouble = modf(cdouble / adouble, &trouble) * adouble;
3540 sv_setnv(sv, cdouble);
3543 if (checksum < 32) {
3544 aulong = (1 << checksum) - 1;
3547 sv_setuv(sv, (UV)culong);
3549 XPUSHs(sv_2mortal(sv));
3553 if (SP == oldsp && gimme == G_SCALAR)
3559 doencodes(register SV *sv, register char *s, register I32 len)
3564 sv_catpvn(sv, hunk, 1);
3567 hunk[0] = ' ' + (077 & (*s >> 2));
3568 hunk[1] = ' ' + (077 & (((*s << 4) & 060) | ((s[1] >> 4) & 017)));
3569 hunk[2] = ' ' + (077 & (((s[1] << 2) & 074) | ((s[2] >> 6) & 03)));
3570 hunk[3] = ' ' + (077 & (s[2] & 077));
3571 sv_catpvn(sv, hunk, 4);
3575 for (s = SvPVX(sv); *s; s++) {
3579 sv_catpvn(sv, "\n", 1);
3583 is_an_int(char *s, STRLEN l)
3585 SV *result = newSVpv("", l);
3586 char *result_c = SvPV(result, na); /* convenience */
3587 char *out = result_c;
3597 SvREFCNT_dec(result);
3620 SvREFCNT_dec(result);
3626 SvCUR_set(result, out - result_c);
3631 div128(SV *pnum, bool *done)
3632 /* must be '\0' terminated */
3636 char *s = SvPV(pnum, len);
3645 i = m * 10 + (*t - '0');
3647 r = (i >> 7); /* r < 10 */
3654 SvCUR_set(pnum, (STRLEN) (t - s));
3661 djSP; dMARK; dORIGMARK; dTARGET;
3662 register SV *cat = TARG;
3665 register char *pat = SvPVx(*++MARK, fromlen);
3666 register char *patend = pat + fromlen;
3671 static char null10[] = {0,0,0,0,0,0,0,0,0,0};
3672 static char *space10 = " ";
3674 /* These must not be in registers: */
3683 unsigned Quad_t auquad;
3692 sv_setpvn(cat, "", 0);
3693 while (pat < patend) {
3694 #define NEXTFROM (items-- > 0 ? *MARK++ : &sv_no)
3695 datumtype = *pat++ & 0xFF;
3696 if (isSPACE(datumtype))
3699 len = strchr("@Xxu", datumtype) ? 0 : items;
3702 else if (isDIGIT(*pat)) {
3704 while (isDIGIT(*pat))
3705 len = (len * 10) + (*pat++ - '0');
3711 croak("Invalid type in pack: '%c'", (int)datumtype);
3712 case ',': /* grandfather in commas but with a warning */
3713 if (commas++ == 0 && dowarn)
3714 warn("Invalid type in pack: '%c'", (int)datumtype);
3717 DIE("%% may only be used in unpack");
3728 if (SvCUR(cat) < len)
3729 DIE("X outside of string");
3736 sv_catpvn(cat, null10, 10);
3739 sv_catpvn(cat, null10, len);
3744 aptr = SvPV(fromstr, fromlen);
3748 sv_catpvn(cat, aptr, len);
3750 sv_catpvn(cat, aptr, fromlen);
3752 if (datumtype == 'A') {
3754 sv_catpvn(cat, space10, 10);
3757 sv_catpvn(cat, space10, len);
3761 sv_catpvn(cat, null10, 10);
3764 sv_catpvn(cat, null10, len);
3771 char *savepat = pat;
3776 aptr = SvPV(fromstr, fromlen);
3781 SvCUR(cat) += (len+7)/8;
3782 SvGROW(cat, SvCUR(cat) + 1);
3783 aptr = SvPVX(cat) + aint;
3788 if (datumtype == 'B') {
3789 for (len = 0; len++ < aint;) {
3790 items |= *pat++ & 1;
3794 *aptr++ = items & 0xff;
3800 for (len = 0; len++ < aint;) {
3806 *aptr++ = items & 0xff;
3812 if (datumtype == 'B')
3813 items <<= 7 - (aint & 7);
3815 items >>= 7 - (aint & 7);
3816 *aptr++ = items & 0xff;
3818 pat = SvPVX(cat) + SvCUR(cat);
3829 char *savepat = pat;
3834 aptr = SvPV(fromstr, fromlen);
3839 SvCUR(cat) += (len+1)/2;
3840 SvGROW(cat, SvCUR(cat) + 1);
3841 aptr = SvPVX(cat) + aint;
3846 if (datumtype == 'H') {
3847 for (len = 0; len++ < aint;) {
3849 items |= ((*pat++ & 15) + 9) & 15;
3851 items |= *pat++ & 15;
3855 *aptr++ = items & 0xff;
3861 for (len = 0; len++ < aint;) {
3863 items |= (((*pat++ & 15) + 9) & 15) << 4;
3865 items |= (*pat++ & 15) << 4;
3869 *aptr++ = items & 0xff;
3875 *aptr++ = items & 0xff;
3876 pat = SvPVX(cat) + SvCUR(cat);
3888 aint = SvIV(fromstr);
3890 sv_catpvn(cat, &achar, sizeof(char));
3893 /* Float and double added by gnb@melba.bby.oz.au 22/11/89 */
3898 afloat = (float)SvNV(fromstr);
3899 sv_catpvn(cat, (char *)&afloat, sizeof (float));
3906 adouble = (double)SvNV(fromstr);
3907 sv_catpvn(cat, (char *)&adouble, sizeof (double));
3913 ashort = (I16)SvIV(fromstr);
3915 ashort = PerlSock_htons(ashort);
3917 CAT16(cat, &ashort);
3923 ashort = (I16)SvIV(fromstr);
3925 ashort = htovs(ashort);
3927 CAT16(cat, &ashort);
3934 ashort = (I16)SvIV(fromstr);
3935 CAT16(cat, &ashort);
3941 auint = SvUV(fromstr);
3942 sv_catpvn(cat, (char*)&auint, sizeof(unsigned int));
3948 adouble = floor(SvNV(fromstr));
3951 croak("Cannot compress negative numbers");
3957 #ifdef CXUX_BROKEN_CONSTANT_CONVERT
3958 adouble <= UV_MAX_cxux
3965 char buf[1 + sizeof(UV)];
3966 char *in = buf + sizeof(buf);
3967 UV auv = U_V(adouble);;
3970 *--in = (auv & 0x7f) | 0x80;
3973 buf[sizeof(buf) - 1] &= 0x7f; /* clear continue bit */
3974 sv_catpvn(cat, in, (buf + sizeof(buf)) - in);
3976 else if (SvPOKp(fromstr)) { /* decimal string arithmetics */
3977 char *from, *result, *in;
3982 /* Copy string and check for compliance */
3983 from = SvPV(fromstr, len);
3984 if ((norm = is_an_int(from, len)) == NULL)
3985 croak("can compress only unsigned integer");
3987 New('w', result, len, char);
3991 *--in = div128(norm, &done) | 0x80;
3992 result[len - 1] &= 0x7F; /* clear continue bit */
3993 sv_catpvn(cat, in, (result + len) - in);
3995 SvREFCNT_dec(norm); /* free norm */
3997 else if (SvNOKp(fromstr)) {
3998 char buf[sizeof(double) * 2]; /* 8/7 <= 2 */
3999 char *in = buf + sizeof(buf);
4002 double next = floor(adouble / 128);
4003 *--in = (unsigned char)(adouble - (next * 128)) | 0x80;
4004 if (--in < buf) /* this cannot happen ;-) */
4005 croak ("Cannot compress integer");
4007 } while (adouble > 0);
4008 buf[sizeof(buf) - 1] &= 0x7f; /* clear continue bit */
4009 sv_catpvn(cat, in, (buf + sizeof(buf)) - in);
4012 croak("Cannot compress non integer");
4018 aint = SvIV(fromstr);
4019 sv_catpvn(cat, (char*)&aint, sizeof(int));
4025 aulong = SvUV(fromstr);
4027 aulong = PerlSock_htonl(aulong);
4029 CAT32(cat, &aulong);
4035 aulong = SvUV(fromstr);
4037 aulong = htovl(aulong);
4039 CAT32(cat, &aulong);
4045 aulong = SvUV(fromstr);
4046 CAT32(cat, &aulong);
4052 along = SvIV(fromstr);
4060 auquad = (unsigned Quad_t)SvIV(fromstr);
4061 sv_catpvn(cat, (char*)&auquad, sizeof(unsigned Quad_t));
4067 aquad = (Quad_t)SvIV(fromstr);
4068 sv_catpvn(cat, (char*)&aquad, sizeof(Quad_t));
4071 #endif /* HAS_QUAD */
4073 len = 1; /* assume SV is correct length */
4078 if (fromstr == &sv_undef)
4081 /* XXX better yet, could spirit away the string to
4082 * a safe spot and hang on to it until the result
4083 * of pack() (and all copies of the result) are
4086 if (dowarn && (SvTEMP(fromstr) || SvPADTMP(fromstr)))
4087 warn("Attempt to pack pointer to temporary value");
4088 if (SvPOK(fromstr) || SvNIOK(fromstr))
4089 aptr = SvPV(fromstr,na);
4091 aptr = SvPV_force(fromstr,na);
4093 sv_catpvn(cat, (char*)&aptr, sizeof(char*));
4098 aptr = SvPV(fromstr, fromlen);
4099 SvGROW(cat, fromlen * 4 / 3);
4104 while (fromlen > 0) {
4111 doencodes(cat, aptr, todo);
4130 register I32 limit = POPi; /* note, negative is forever */
4133 register char *s = SvPV(sv, len);
4134 char *strend = s + len;
4136 register REGEXP *rx;
4140 I32 maxiters = (strend - s) + 10;
4143 I32 origlimit = limit;
4146 AV *oldstack = curstack;
4147 I32 gimme = GIMME_V;
4148 I32 oldsave = savestack_ix;
4149 I32 make_mortal = 1;
4150 MAGIC *mg = (MAGIC *) NULL;
4153 Copy(&LvTARGOFF(POPs), &pm, 1, PMOP*);
4158 DIE("panic: do_split");
4159 rx = pm->op_pmregexp;
4161 TAINT_IF((pm->op_pmflags & PMf_LOCALE) &&
4162 (pm->op_pmflags & (PMf_WHITE | PMf_SKIPWHITE)));
4164 if (pm->op_pmreplroot)
4165 ary = GvAVn((GV*)pm->op_pmreplroot);
4166 else if (gimme != G_ARRAY)
4168 ary = (AV*)curpad[0];
4171 #endif /* USE_THREADS */
4174 if (ary && (gimme != G_ARRAY || (pm->op_pmflags & PMf_ONCE))) {
4180 if (SvRMAGICAL(ary) && (mg = mg_find((SV *) ary, 'P'))) {
4187 for (i = AvFILLp(ary); i >= 0; i--)
4188 AvARRAY(ary)[i] = &sv_undef; /* don't free mere refs */
4190 /* temporarily switch stacks */
4191 SWITCHSTACK(curstack, ary);
4195 base = SP - stack_base;
4197 if (pm->op_pmflags & PMf_SKIPWHITE) {
4198 if (pm->op_pmflags & PMf_LOCALE) {
4199 while (isSPACE_LC(*s))
4207 if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) {
4209 multiline = pm->op_pmflags & PMf_MULTILINE;
4213 limit = maxiters + 2;
4214 if (pm->op_pmflags & PMf_WHITE) {
4217 while (m < strend &&
4218 !((pm->op_pmflags & PMf_LOCALE)
4219 ? isSPACE_LC(*m) : isSPACE(*m)))
4224 dstr = NEWSV(30, m-s);
4225 sv_setpvn(dstr, s, m-s);
4231 while (s < strend &&
4232 ((pm->op_pmflags & PMf_LOCALE)
4233 ? isSPACE_LC(*s) : isSPACE(*s)))
4237 else if (strEQ("^", rx->precomp)) {
4240 for (m = s; m < strend && *m != '\n'; m++) ;
4244 dstr = NEWSV(30, m-s);
4245 sv_setpvn(dstr, s, m-s);
4252 else if (rx->check_substr && !rx->nparens
4253 && (rx->reganch & ROPT_CHECK_ALL)
4254 && !(rx->reganch & ROPT_ANCH)) {
4255 i = SvCUR(rx->check_substr);
4256 if (i == 1 && !SvTAIL(rx->check_substr)) {
4257 i = *SvPVX(rx->check_substr);
4260 for (m = s; m < strend && *m != i; m++) ;
4263 dstr = NEWSV(30, m-s);
4264 sv_setpvn(dstr, s, m-s);
4273 while (s < strend && --limit &&
4274 (m=fbm_instr((unsigned char*)s, (unsigned char*)strend,
4275 rx->check_substr)) )
4278 dstr = NEWSV(31, m-s);
4279 sv_setpvn(dstr, s, m-s);
4288 maxiters += (strend - s) * rx->nparens;
4289 while (s < strend && --limit &&
4290 regexec_flags(rx, s, strend, orig, 1, Nullsv, NULL, 0))
4292 TAINT_IF(RX_MATCH_TAINTED(rx));
4294 && rx->subbase != orig) {
4299 strend = s + (strend - m);
4302 dstr = NEWSV(32, m-s);
4303 sv_setpvn(dstr, s, m-s);
4308 for (i = 1; i <= rx->nparens; i++) {
4312 dstr = NEWSV(33, m-s);
4313 sv_setpvn(dstr, s, m-s);
4316 dstr = NEWSV(33, 0);
4326 LEAVE_SCOPE(oldsave);
4327 iters = (SP - stack_base) - base;
4328 if (iters > maxiters)
4331 /* keep field after final delim? */
4332 if (s < strend || (iters && origlimit)) {
4333 dstr = NEWSV(34, strend-s);
4334 sv_setpvn(dstr, s, strend-s);
4340 else if (!origlimit) {
4341 while (iters > 0 && (!TOPs || !SvANY(TOPs) || SvCUR(TOPs) == 0))
4347 SWITCHSTACK(ary, oldstack);
4348 if (SvSMAGICAL(ary)) {
4353 if (gimme == G_ARRAY) {
4355 Copy(AvARRAY(ary), SP + 1, iters, SV*);
4363 perl_call_method("PUSH",G_SCALAR|G_DISCARD);
4366 if (gimme == G_ARRAY) {
4367 /* EXTEND should not be needed - we just popped them */
4369 for (i=0; i < iters; i++) {
4370 SV **svp = av_fetch(ary, i, FALSE);
4371 PUSHs((svp) ? *svp : &sv_undef);
4378 if (gimme == G_ARRAY)
4381 if (iters || !pm->op_pmreplroot) {
4391 unlock_condpair(void *svv)
4394 MAGIC *mg = mg_find((SV*)svv, 'm');
4397 croak("panic: unlock_condpair unlocking non-mutex");
4398 MUTEX_LOCK(MgMUTEXP(mg));
4399 if (MgOWNER(mg) != thr)
4400 croak("panic: unlock_condpair unlocking mutex that we don't own");
4402 COND_SIGNAL(MgOWNERCONDP(mg));
4403 DEBUG_L(PerlIO_printf(PerlIO_stderr(), "0x%lx: unlock 0x%lx\n",
4404 (unsigned long)thr, (unsigned long)svv);)
4405 MUTEX_UNLOCK(MgMUTEXP(mg));
4407 #endif /* USE_THREADS */
4420 mg = condpair_magic(sv);
4421 MUTEX_LOCK(MgMUTEXP(mg));
4422 if (MgOWNER(mg) == thr)
4423 MUTEX_UNLOCK(MgMUTEXP(mg));
4426 COND_WAIT(MgOWNERCONDP(mg), MgMUTEXP(mg));
4428 DEBUG_L(PerlIO_printf(PerlIO_stderr(), "0x%lx: pp_lock lock 0x%lx\n",
4429 (unsigned long)thr, (unsigned long)sv);)
4430 MUTEX_UNLOCK(MgMUTEXP(mg));
4431 SvREFCNT_inc(sv); /* keep alive until magic_mutexfree */
4432 save_destructor(unlock_condpair, sv);
4434 #endif /* USE_THREADS */
4435 if (SvTYPE(retsv) == SVt_PVAV || SvTYPE(retsv) == SVt_PVHV
4436 || SvTYPE(retsv) == SVt_PVCV) {
4437 retsv = refto(retsv);
4448 if (op->op_private & OPpLVAL_INTRO)
4449 PUSHs(*save_threadsv(op->op_targ));
4451 PUSHs(THREADSV(op->op_targ));
4454 DIE("tried to access per-thread data in non-threaded perl");
4455 #endif /* USE_THREADS */