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)
104 static void doencodes _((SV* sv, char* s, I32 len));
105 static SV* refto _((SV* sv));
106 static U32 seed _((void));
108 static bool srand_called = FALSE;
110 /* variations on pp_null */
116 /* XXX I can't imagine anyone who doesn't have this actually _needs_
117 it, since pid_t is an integral type.
120 #ifdef NEED_GETPID_PROTO
121 extern Pid_t getpid (void);
127 if (GIMME_V == G_SCALAR)
142 if (op->op_private & OPpLVAL_INTRO)
143 SAVECLEARSV(curpad[op->op_targ]);
145 if (op->op_flags & OPf_REF) {
149 if (GIMME == G_ARRAY) {
150 I32 maxarg = AvFILL((AV*)TARG) + 1;
152 if (SvMAGICAL(TARG)) {
154 for (i=0; i < maxarg; i++) {
155 SV **svp = av_fetch((AV*)TARG, i, FALSE);
156 SP[i+1] = (svp) ? *svp : &sv_undef;
160 Copy(AvARRAY((AV*)TARG), SP+1, maxarg, SV*);
165 SV* sv = sv_newmortal();
166 I32 maxarg = AvFILL((AV*)TARG) + 1;
167 sv_setiv(sv, maxarg);
179 if (op->op_private & OPpLVAL_INTRO)
180 SAVECLEARSV(curpad[op->op_targ]);
181 if (op->op_flags & OPf_REF)
184 if (gimme == G_ARRAY) {
185 RETURNOP(do_kv(ARGS));
187 else if (gimme == G_SCALAR) {
188 SV* sv = sv_newmortal();
189 if (HvFILL((HV*)TARG))
190 sv_setpvf(sv, "%ld/%ld",
191 (long)HvFILL((HV*)TARG), (long)HvMAX((HV*)TARG) + 1);
201 DIE("NOT IMPL LINE %d",__LINE__);
213 if (SvTYPE(sv) == SVt_PVIO) {
214 GV *gv = (GV*) sv_newmortal();
215 gv_init(gv, 0, "", 0, 0);
216 GvIOp(gv) = (IO *)sv;
217 (void)SvREFCNT_inc(sv);
219 } else if (SvTYPE(sv) != SVt_PVGV)
220 DIE("Not a GLOB reference");
223 if (SvTYPE(sv) != SVt_PVGV) {
226 if (SvGMAGICAL(sv)) {
232 if (op->op_flags & OPf_REF ||
233 op->op_private & HINT_STRICT_REFS)
234 DIE(no_usym, "a symbol");
240 if (op->op_private & HINT_STRICT_REFS)
241 DIE(no_symref, sym, "a symbol");
242 sv = (SV*)gv_fetchpv(sym, TRUE, SVt_PVGV);
245 if (op->op_private & OPpLVAL_INTRO)
246 save_gp((GV*)sv, !(op->op_flags & OPf_SPECIAL));
258 switch (SvTYPE(sv)) {
262 DIE("Not a SCALAR reference");
269 if (SvTYPE(gv) != SVt_PVGV) {
270 if (SvGMAGICAL(sv)) {
276 if (op->op_flags & OPf_REF ||
277 op->op_private & HINT_STRICT_REFS)
278 DIE(no_usym, "a SCALAR");
284 if (op->op_private & HINT_STRICT_REFS)
285 DIE(no_symref, sym, "a SCALAR");
286 gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PV);
290 if (op->op_flags & OPf_MOD) {
291 if (op->op_private & OPpLVAL_INTRO)
292 sv = save_scalar((GV*)TOPs);
293 else if (op->op_private & OPpDEREF)
294 vivify_ref(sv, op->op_private & OPpDEREF);
304 SV *sv = AvARYLEN(av);
306 AvARYLEN(av) = sv = NEWSV(0,0);
307 sv_upgrade(sv, SVt_IV);
308 sv_magic(sv, (SV*)av, '#', Nullch, 0);
316 djSP; dTARGET; dPOPss;
318 if (op->op_flags & OPf_MOD) {
319 if (SvTYPE(TARG) < SVt_PVLV) {
320 sv_upgrade(TARG, SVt_PVLV);
321 sv_magic(TARG, Nullsv, '.', Nullch, 0);
326 PUSHs(TARG); /* no SvSETMAGIC */
332 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) {
333 mg = mg_find(sv, 'g');
334 if (mg && mg->mg_len >= 0) {
335 PUSHi(mg->mg_len + curcop->cop_arybase);
349 /* We usually try to add a non-existent subroutine in case of AUTOLOAD. */
350 /* (But not in defined().) */
351 CV *cv = sv_2cv(TOPs, &stash, &gv, !(op->op_flags & OPf_SPECIAL));
354 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
371 if (SvPOK(TOPs) && SvCUR(TOPs) >= 7) {
372 char *s = SvPVX(TOPs);
373 if (strnEQ(s, "CORE::", 6)) {
376 code = keyword(s + 6, SvCUR(TOPs) - 6);
377 if (code < 0) { /* Overridable. */
378 #define MAX_ARGS_OP ((sizeof(I32) - 1) * 2)
379 int i = 0, n = 0, seen_question = 0;
381 char str[ MAX_ARGS_OP * 2 + 2 ]; /* One ';', one '\0' */
383 while (i < MAXO) { /* The slow way. */
384 if (strEQ(s + 6, op_name[i]) || strEQ(s + 6, op_desc[i]))
388 goto nonesuch; /* Should not happen... */
390 oa = opargs[i] >> OASHIFT;
392 if (oa & OA_OPTIONAL) {
395 } else if (seen_question)
396 goto set; /* XXXX system, exec */
397 if ((oa & (OA_OPTIONAL - 1)) >= OA_AVREF
398 && (oa & (OA_OPTIONAL - 1)) <= OA_HVREF) {
401 /* What to do with R ((un)tie, tied, (sys)read, recv)? */
402 str[n++] = ("?$@@%&*$")[oa & (OA_OPTIONAL - 1)];
406 ret = sv_2mortal(newSVpv(str, n - 1));
407 } else if (code) /* Non-Overridable */
409 else { /* None such */
411 croak("Cannot find an opnumber for \"%s\"", s+6);
415 cv = sv_2cv(TOPs, &stash, &gv, FALSE);
417 ret = sv_2mortal(newSVpv(SvPVX(cv), SvCUR(cv)));
426 CV* cv = (CV*)curpad[op->op_targ];
428 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
444 if (GIMME != G_ARRAY) {
448 EXTEND_MORTAL(SP - MARK);
450 *MARK = refto(*MARK);
459 if (SvTYPE(sv) == SVt_PVLV && LvTYPE(sv) == 'y') {
462 if (!(sv = LvTARG(sv)))
465 else if (SvPADTMP(sv))
469 (void)SvREFCNT_inc(sv);
472 sv_upgrade(rv, SVt_RV);
486 if (sv && SvGMAGICAL(sv))
489 if (!sv || !SvROK(sv))
493 pv = sv_reftype(sv,TRUE);
494 PUSHp(pv, strlen(pv));
504 stash = curcop->cop_stash;
506 stash = gv_stashsv(POPs, TRUE);
508 (void)sv_bless(TOPs, stash);
525 switch (elem ? *elem : '\0')
528 if (strEQ(elem, "ARRAY"))
532 if (strEQ(elem, "CODE"))
533 ref = (SV*)GvCVu(gv);
536 if (strEQ(elem, "FILEHANDLE")) /* XXX deprecate in 5.005 */
537 ref = (SV*)GvIOp(gv);
540 if (strEQ(elem, "GLOB"))
544 if (strEQ(elem, "HASH"))
548 if (strEQ(elem, "IO"))
549 ref = (SV*)GvIOp(gv);
552 if (strEQ(elem, "NAME"))
553 sv = newSVpv(GvNAME(gv), GvNAMELEN(gv));
556 if (strEQ(elem, "PACKAGE"))
557 sv = newSVpv(HvNAME(GvSTASH(gv)), 0);
560 if (strEQ(elem, "SCALAR"))
574 /* Pattern matching */
579 register UNOP *unop = cUNOP;
580 register unsigned char *s;
583 register I32 *sfirst;
587 if(unop->op_first && unop->op_first->op_type == OP_PUSHRE) {
588 PMOP *pm = (PMOP *)unop->op_first;
589 SV *rv = sv_newmortal();
590 sv = newSVrv(rv, "Regexp");
591 sv_magic(sv,(SV*)ReREFCNT_inc(pm->op_pmregexp),'r',0,0);
595 if (sv == lastscream) {
601 SvSCREAM_off(lastscream);
602 SvREFCNT_dec(lastscream);
604 lastscream = SvREFCNT_inc(sv);
607 s = (unsigned char*)(SvPV(sv, len));
611 if (pos > maxscream) {
613 maxscream = pos + 80;
614 New(301, screamfirst, 256, I32);
615 New(302, screamnext, maxscream, I32);
618 maxscream = pos + pos / 4;
619 Renew(screamnext, maxscream, I32);
623 sfirst = screamfirst;
626 if (!sfirst || !snext)
627 DIE("do_study: out of memory");
629 for (ch = 256; ch; --ch)
636 snext[pos] = sfirst[ch] - pos;
643 sv_magic(sv, Nullsv, 'g', Nullch, 0); /* piggyback on m//g magic */
652 if (op->op_flags & OPf_STACKED)
658 TARG = sv_newmortal();
659 PUSHi(do_trans(sv, op));
663 /* Lvalue operators. */
675 djSP; dMARK; dTARGET;
685 SETi(do_chomp(TOPs));
691 djSP; dMARK; dTARGET;
692 register I32 count = 0;
695 count += do_chomp(POPs);
706 if (!sv || !SvANY(sv))
708 switch (SvTYPE(sv)) {
710 if (AvMAX(sv) >= 0 || SvGMAGICAL(sv))
714 if (HvARRAY(sv) || SvGMAGICAL(sv))
718 if (CvROOT(sv) || CvXSUB(sv))
735 if (!op->op_private) {
744 if (SvTHINKFIRST(sv)) {
751 switch (SvTYPE(sv)) {
761 if (cv_const_sv((CV*)sv))
762 warn("Constant subroutine %s undefined",
763 CvANON((CV*)sv) ? "(anonymous)" : GvENAME(CvGV((CV*)sv)));
766 { GV* gv = (GV*)SvREFCNT_inc(CvGV((CV*)sv));
768 CvGV((CV*)sv) = gv; } /* let user-undef'd sub keep its identity */
772 sv_setsv(sv, &sv_undef);
775 if (SvTYPE(sv) >= SVt_PV && SvPVX(sv) && SvLEN(sv)) {
778 SvPV_set(sv, Nullch);
791 if (SvREADONLY(TOPs) || SvTYPE(TOPs) > SVt_PVLV)
793 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) &&
794 SvIVX(TOPs) != IV_MIN)
797 SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK);
808 if (SvREADONLY(TOPs) || SvTYPE(TOPs) > SVt_PVLV)
810 sv_setsv(TARG, TOPs);
811 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) &&
812 SvIVX(TOPs) != IV_MAX)
815 SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK);
829 if(SvREADONLY(TOPs) || SvTYPE(TOPs) > SVt_PVLV)
831 sv_setsv(TARG, TOPs);
832 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) &&
833 SvIVX(TOPs) != IV_MIN)
836 SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK);
845 /* Ordinary operators. */
849 djSP; dATARGET; tryAMAGICbin(pow,opASSIGN);
852 SETn( pow( left, right) );
859 djSP; dATARGET; tryAMAGICbin(mult,opASSIGN);
862 SETn( left * right );
869 djSP; dATARGET; tryAMAGICbin(div,opASSIGN);
874 DIE("Illegal division by zero");
876 /* insure that 20./5. == 4. */
879 if ((double)I_V(left) == left &&
880 (double)I_V(right) == right &&
881 (k = I_V(left)/I_V(right))*I_V(right) == I_V(left)) {
884 value = left / right;
888 value = left / right;
897 djSP; dATARGET; tryAMAGICbin(mod,opASSIGN);
905 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs)) {
907 right = (right_neg = (i < 0)) ? -i : i;
911 right = U_V((right_neg = (n < 0)) ? -n : n);
914 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs)) {
916 left = (left_neg = (i < 0)) ? -i : i;
920 left = U_V((left_neg = (n < 0)) ? -n : n);
924 DIE("Illegal modulus zero");
927 if ((left_neg != right_neg) && ans)
930 /* XXX may warn: unary minus operator applied to unsigned type */
931 /* could change -foo to be (~foo)+1 instead */
932 if (ans <= ~((UV)IV_MAX)+1)
933 sv_setiv(TARG, ~ans+1);
935 sv_setnv(TARG, -(double)ans);
946 djSP; dATARGET; tryAMAGICbin(repeat,opASSIGN);
948 register I32 count = POPi;
949 if (GIMME == G_ARRAY && op->op_private & OPpREPEAT_DOLIST) {
951 I32 items = SP - MARK;
963 repeatcpy((char*)(MARK + items), (char*)MARK,
964 items * sizeof(SV*), count - 1);
970 else { /* Note: mark already snarfed by pp_list */
975 if (TARG == tmpstr && SvTHINKFIRST(tmpstr)) {
976 if (SvREADONLY(tmpstr) && curcop != &compiling)
977 DIE("Can't x= to readonly value");
981 SvSetSV(TARG, tmpstr);
982 SvPV_force(TARG, len);
987 SvGROW(TARG, (count * len) + 1);
988 repeatcpy(SvPVX(TARG) + len, SvPVX(TARG), len, count - 1);
989 SvCUR(TARG) *= count;
993 (void)SvPOK_only(TARG);
1002 djSP; dATARGET; tryAMAGICbin(subtr,opASSIGN);
1005 SETn( left - right );
1012 djSP; dATARGET; tryAMAGICbin(lshift,opASSIGN);
1015 if (op->op_private & HINT_INTEGER) {
1017 i = BWi(i) << shift;
1031 djSP; dATARGET; tryAMAGICbin(rshift,opASSIGN);
1034 if (op->op_private & HINT_INTEGER) {
1036 i = BWi(i) >> shift;
1050 djSP; tryAMAGICbinSET(lt,0);
1053 SETs(boolSV(TOPn < value));
1060 djSP; tryAMAGICbinSET(gt,0);
1063 SETs(boolSV(TOPn > value));
1070 djSP; tryAMAGICbinSET(le,0);
1073 SETs(boolSV(TOPn <= value));
1080 djSP; tryAMAGICbinSET(ge,0);
1083 SETs(boolSV(TOPn >= value));
1090 djSP; tryAMAGICbinSET(ne,0);
1093 SETs(boolSV(TOPn != value));
1100 djSP; dTARGET; tryAMAGICbin(ncmp,0);
1107 else if (left < right)
1109 else if (left > right)
1122 djSP; tryAMAGICbinSET(slt,0);
1125 int cmp = ((op->op_private & OPpLOCALE)
1126 ? sv_cmp_locale(left, right)
1127 : sv_cmp(left, right));
1128 SETs(boolSV(cmp < 0));
1135 djSP; tryAMAGICbinSET(sgt,0);
1138 int cmp = ((op->op_private & OPpLOCALE)
1139 ? sv_cmp_locale(left, right)
1140 : sv_cmp(left, right));
1141 SETs(boolSV(cmp > 0));
1148 djSP; tryAMAGICbinSET(sle,0);
1151 int cmp = ((op->op_private & OPpLOCALE)
1152 ? sv_cmp_locale(left, right)
1153 : sv_cmp(left, right));
1154 SETs(boolSV(cmp <= 0));
1161 djSP; tryAMAGICbinSET(sge,0);
1164 int cmp = ((op->op_private & OPpLOCALE)
1165 ? sv_cmp_locale(left, right)
1166 : sv_cmp(left, right));
1167 SETs(boolSV(cmp >= 0));
1174 djSP; tryAMAGICbinSET(seq,0);
1177 SETs(boolSV(sv_eq(left, right)));
1184 djSP; tryAMAGICbinSET(sne,0);
1187 SETs(boolSV(!sv_eq(left, right)));
1194 djSP; dTARGET; tryAMAGICbin(scmp,0);
1197 int cmp = ((op->op_private & OPpLOCALE)
1198 ? sv_cmp_locale(left, right)
1199 : sv_cmp(left, right));
1207 djSP; dATARGET; tryAMAGICbin(band,opASSIGN);
1210 if (SvNIOKp(left) || SvNIOKp(right)) {
1211 if (op->op_private & HINT_INTEGER) {
1212 IBW value = SvIV(left) & SvIV(right);
1216 UBW value = SvUV(left) & SvUV(right);
1221 do_vop(op->op_type, TARG, left, right);
1230 djSP; dATARGET; tryAMAGICbin(bxor,opASSIGN);
1233 if (SvNIOKp(left) || SvNIOKp(right)) {
1234 if (op->op_private & HINT_INTEGER) {
1235 IBW value = (USE_LEFT(left) ? SvIV(left) : 0) ^ SvIV(right);
1239 UBW value = (USE_LEFT(left) ? SvUV(left) : 0) ^ SvUV(right);
1244 do_vop(op->op_type, TARG, left, right);
1253 djSP; dATARGET; tryAMAGICbin(bor,opASSIGN);
1256 if (SvNIOKp(left) || SvNIOKp(right)) {
1257 if (op->op_private & HINT_INTEGER) {
1258 IBW value = (USE_LEFT(left) ? SvIV(left) : 0) | SvIV(right);
1262 UBW value = (USE_LEFT(left) ? SvUV(left) : 0) | SvUV(right);
1267 do_vop(op->op_type, TARG, left, right);
1276 djSP; dTARGET; tryAMAGICun(neg);
1281 if (SvIOKp(sv) && !SvNOKp(sv) && !SvPOKp(sv) && SvIVX(sv) != IV_MIN)
1283 else if (SvNIOKp(sv))
1285 else if (SvPOKp(sv)) {
1287 char *s = SvPV(sv, len);
1288 if (isIDFIRST(*s)) {
1289 sv_setpvn(TARG, "-", 1);
1292 else if (*s == '+' || *s == '-') {
1294 *SvPV_force(TARG, len) = *s == '-' ? '+' : '-';
1297 sv_setnv(TARG, -SvNV(sv));
1309 djSP; tryAMAGICunSET(not);
1310 #endif /* OVERLOAD */
1311 *stack_sp = boolSV(!SvTRUE(*stack_sp));
1317 djSP; dTARGET; tryAMAGICun(compl);
1321 if (op->op_private & HINT_INTEGER) {
1322 IBW value = ~SvIV(sv);
1326 UBW value = ~SvUV(sv);
1331 register char *tmps;
1332 register long *tmpl;
1337 tmps = SvPV_force(TARG, len);
1340 for ( ; anum && (unsigned long)tmps % sizeof(long); anum--, tmps++)
1343 for ( ; anum >= sizeof(long); anum -= sizeof(long), tmpl++)
1347 for ( ; anum > 0; anum--, tmps++)
1356 /* integer versions of some of the above */
1360 djSP; dATARGET; tryAMAGICbin(mult,opASSIGN);
1363 SETi( left * right );
1370 djSP; dATARGET; tryAMAGICbin(div,opASSIGN);
1374 DIE("Illegal division by zero");
1375 value = POPi / value;
1383 djSP; dATARGET; tryAMAGICbin(mod,opASSIGN);
1387 DIE("Illegal modulus zero");
1388 SETi( left % right );
1395 djSP; dATARGET; tryAMAGICbin(add,opASSIGN);
1398 SETi( left + right );
1405 djSP; dATARGET; tryAMAGICbin(subtr,opASSIGN);
1408 SETi( left - right );
1415 djSP; tryAMAGICbinSET(lt,0);
1418 SETs(boolSV(left < right));
1425 djSP; tryAMAGICbinSET(gt,0);
1428 SETs(boolSV(left > right));
1435 djSP; tryAMAGICbinSET(le,0);
1438 SETs(boolSV(left <= right));
1445 djSP; tryAMAGICbinSET(ge,0);
1448 SETs(boolSV(left >= right));
1455 djSP; tryAMAGICbinSET(eq,0);
1458 SETs(boolSV(left == right));
1465 djSP; tryAMAGICbinSET(ne,0);
1468 SETs(boolSV(left != right));
1475 djSP; dTARGET; tryAMAGICbin(ncmp,0);
1482 else if (left < right)
1493 djSP; dTARGET; tryAMAGICun(neg);
1498 /* High falutin' math. */
1502 djSP; dTARGET; tryAMAGICbin(atan2,0);
1505 SETn(atan2(left, right));
1512 djSP; dTARGET; tryAMAGICun(sin);
1524 djSP; dTARGET; tryAMAGICun(cos);
1544 if (!srand_called) {
1545 (void)srand((unsigned)seed());
1546 srand_called = TRUE;
1549 value = rand() * value / 2147483648.0;
1552 value = rand() * value / 65536.0;
1555 value = rand() * value / 32768.0;
1557 value = rand() * value / (double)(((unsigned long)1) << RANDBITS);
1573 (void)srand((unsigned)anum);
1574 srand_called = TRUE;
1583 * This is really just a quick hack which grabs various garbage
1584 * values. It really should be a real hash algorithm which
1585 * spreads the effect of every input bit onto every output bit,
1586 * if someone who knows about such tings would bother to write it.
1587 * Might be a good idea to add that function to CORE as well.
1588 * No numbers below come from careful analysis or anyting here,
1589 * except they are primes and SEED_C1 > 1E6 to get a full-width
1590 * value from (tv_sec * SEED_C1 + tv_usec). The multipliers should
1591 * probably be bigger too.
1594 # define SEED_C1 1000003
1595 #define SEED_C4 73819
1597 # define SEED_C1 25747
1598 #define SEED_C4 20639
1602 #define SEED_C5 26107
1607 # include <starlet.h>
1608 /* when[] = (low 32 bits, high 32 bits) of time since epoch
1609 * in 100-ns units, typically incremented ever 10 ms. */
1610 unsigned int when[2];
1611 _ckvmssts(sys$gettim(when));
1612 u = (U32)SEED_C1 * when[0] + (U32)SEED_C2 * when[1];
1614 # ifdef HAS_GETTIMEOFDAY
1615 struct timeval when;
1616 gettimeofday(&when,(struct timezone *) 0);
1617 u = (U32)SEED_C1 * when.tv_sec + (U32)SEED_C2 * when.tv_usec;
1621 u = (U32)SEED_C1 * when;
1624 u += SEED_C3 * (U32)getpid();
1625 u += SEED_C4 * (U32)(UV)stack_sp;
1626 #ifndef PLAN9 /* XXX Plan9 assembler chokes on this; fix needed */
1627 u += SEED_C5 * (U32)(UV)&when;
1634 djSP; dTARGET; tryAMAGICun(exp);
1646 djSP; dTARGET; tryAMAGICun(log);
1651 SET_NUMERIC_STANDARD();
1652 DIE("Can't take log of %g", value);
1662 djSP; dTARGET; tryAMAGICun(sqrt);
1667 SET_NUMERIC_STANDARD();
1668 DIE("Can't take sqrt of %g", value);
1670 value = sqrt(value);
1680 double value = TOPn;
1683 if (SvIOKp(TOPs) && !SvNOKp(TOPs) && !SvPOKp(TOPs)) {
1689 (void)modf(value, &value);
1691 (void)modf(-value, &value);
1706 djSP; dTARGET; tryAMAGICun(abs);
1708 double value = TOPn;
1711 if (SvIOKp(TOPs) && !SvNOKp(TOPs) && !SvPOKp(TOPs) &&
1712 (iv = SvIVX(TOPs)) != IV_MIN) {
1733 XPUSHu(scan_hex(tmps, 99, &argtype));
1745 while (*tmps && isSPACE(*tmps))
1750 value = scan_hex(++tmps, 99, &argtype);
1752 value = scan_oct(tmps, 99, &argtype);
1762 SETi( sv_len(TOPs) );
1775 I32 lvalue = op->op_flags & OPf_MOD;
1777 I32 arybase = curcop->cop_arybase;
1783 tmps = SvPV(sv, curlen);
1784 if (pos >= arybase) {
1802 else if (len >= 0) {
1804 if (rem > (I32)curlen)
1818 if (dowarn || lvalue)
1819 warn("substr outside of string");
1824 sv_setpvn(TARG, tmps, rem);
1825 if (lvalue) { /* it's an lvalue! */
1826 if (!SvGMAGICAL(sv)) {
1830 warn("Attempt to use reference as lvalue in substr");
1832 if (SvOK(sv)) /* is it defined ? */
1833 (void)SvPOK_only(sv);
1835 sv_setpvn(sv,"",0); /* avoid lexical reincarnation */
1838 if (SvTYPE(TARG) < SVt_PVLV) {
1839 sv_upgrade(TARG, SVt_PVLV);
1840 sv_magic(TARG, Nullsv, 'x', Nullch, 0);
1845 LvTARGOFF(TARG) = pos;
1846 LvTARGLEN(TARG) = rem;
1849 PUSHs(TARG); /* avoid SvSETMAGIC here */
1856 register I32 size = POPi;
1857 register I32 offset = POPi;
1858 register SV *src = POPs;
1859 I32 lvalue = op->op_flags & OPf_MOD;
1861 unsigned char *s = (unsigned char*)SvPV(src, srclen);
1862 unsigned long retnum;
1865 offset *= size; /* turn into bit offset */
1866 len = (offset + size + 7) / 8;
1867 if (offset < 0 || size < 1)
1870 if (lvalue) { /* it's an lvalue! */
1871 if (SvTYPE(TARG) < SVt_PVLV) {
1872 sv_upgrade(TARG, SVt_PVLV);
1873 sv_magic(TARG, Nullsv, 'v', Nullch, 0);
1878 LvTARGOFF(TARG) = offset;
1879 LvTARGLEN(TARG) = size;
1887 if (offset >= srclen)
1890 retnum = (unsigned long) s[offset] << 8;
1892 else if (size == 32) {
1893 if (offset >= srclen)
1895 else if (offset + 1 >= srclen)
1896 retnum = (unsigned long) s[offset] << 24;
1897 else if (offset + 2 >= srclen)
1898 retnum = ((unsigned long) s[offset] << 24) +
1899 ((unsigned long) s[offset + 1] << 16);
1901 retnum = ((unsigned long) s[offset] << 24) +
1902 ((unsigned long) s[offset + 1] << 16) +
1903 (s[offset + 2] << 8);
1908 retnum = (s[offset >> 3] >> (offset & 7)) & ((1 << size) - 1);
1913 else if (size == 16)
1914 retnum = ((unsigned long) s[offset] << 8) + s[offset+1];
1915 else if (size == 32)
1916 retnum = ((unsigned long) s[offset] << 24) +
1917 ((unsigned long) s[offset + 1] << 16) +
1918 (s[offset + 2] << 8) + s[offset+3];
1922 sv_setuv(TARG, (UV)retnum);
1937 I32 arybase = curcop->cop_arybase;
1942 offset = POPi - arybase;
1945 tmps = SvPV(big, biglen);
1948 else if (offset > biglen)
1950 if (!(tmps2 = fbm_instr((unsigned char*)tmps + offset,
1951 (unsigned char*)tmps + biglen, little)))
1952 retval = -1 + arybase;
1954 retval = tmps2 - tmps + arybase;
1971 I32 arybase = curcop->cop_arybase;
1977 tmps2 = SvPV(little, llen);
1978 tmps = SvPV(big, blen);
1982 offset = SvIV(offstr) - arybase + llen;
1985 else if (offset > blen)
1987 if (!(tmps2 = rninstr(tmps, tmps + offset,
1988 tmps2, tmps2 + llen)))
1989 retval = -1 + arybase;
1991 retval = tmps2 - tmps + arybase;
1998 djSP; dMARK; dORIGMARK; dTARGET;
1999 #ifdef USE_LOCALE_NUMERIC
2000 if (op->op_private & OPpLOCALE)
2001 SET_NUMERIC_LOCAL();
2003 SET_NUMERIC_STANDARD();
2005 do_sprintf(TARG, SP-MARK, MARK+1);
2006 TAINT_IF(SvTAINTED(TARG));
2020 value = (I32) (*tmps & 255);
2025 value = (I32) (anum & 255);
2036 (void)SvUPGRADE(TARG,SVt_PV);
2042 (void)SvPOK_only(TARG);
2049 djSP; dTARGET; dPOPTOPssrl;
2051 char *tmps = SvPV(left, na);
2053 sv_setpv(TARG, fcrypt(tmps, SvPV(right, na)));
2055 sv_setpv(TARG, crypt(tmps, SvPV(right, na)));
2059 "The crypt() function is unimplemented due to excessive paranoia.");
2071 if (!SvPADTMP(sv)) {
2077 s = SvPV_force(sv, na);
2079 if (op->op_private & OPpLOCALE) {
2082 *s = toUPPER_LC(*s);
2097 if (!SvPADTMP(sv)) {
2103 s = SvPV_force(sv, na);
2105 if (op->op_private & OPpLOCALE) {
2108 *s = toLOWER_LC(*s);
2125 if (!SvPADTMP(sv)) {
2132 s = SvPV_force(sv, len);
2134 register char *send = s + len;
2136 if (op->op_private & OPpLOCALE) {
2139 for (; s < send; s++)
2140 *s = toUPPER_LC(*s);
2143 for (; s < send; s++)
2157 if (!SvPADTMP(sv)) {
2164 s = SvPV_force(sv, len);
2166 register char *send = s + len;
2168 if (op->op_private & OPpLOCALE) {
2171 for (; s < send; s++)
2172 *s = toLOWER_LC(*s);
2175 for (; s < send; s++)
2187 register char *s = SvPV(sv,len);
2191 (void)SvUPGRADE(TARG, SVt_PV);
2192 SvGROW(TARG, (len * 2) + 1);
2200 SvCUR_set(TARG, d - SvPVX(TARG));
2201 (void)SvPOK_only(TARG);
2204 sv_setpvn(TARG, s, len);
2213 djSP; dMARK; dORIGMARK;
2215 register AV* av = (AV*)POPs;
2216 register I32 lval = op->op_flags & OPf_MOD;
2217 I32 arybase = curcop->cop_arybase;
2220 if (SvTYPE(av) == SVt_PVAV) {
2221 if (lval && op->op_private & OPpLVAL_INTRO) {
2223 for (svp = MARK + 1; svp <= SP; svp++) {
2228 if (max > AvMAX(av))
2231 while (++MARK <= SP) {
2232 elem = SvIVx(*MARK);
2236 svp = av_fetch(av, elem, lval);
2238 if (!svp || *svp == &sv_undef)
2239 DIE(no_aelem, elem);
2240 if (op->op_private & OPpLVAL_INTRO)
2241 save_aelem(av, elem, svp);
2243 *MARK = svp ? *svp : &sv_undef;
2246 if (GIMME != G_ARRAY) {
2254 /* Associative arrays. */
2259 HV *hash = (HV*)POPs;
2261 I32 gimme = GIMME_V;
2262 I32 realhv = (SvTYPE(hash) == SVt_PVHV);
2265 /* might clobber stack_sp */
2266 entry = realhv ? hv_iternext(hash) : avhv_iternext((AV*)hash);
2271 PUSHs(hv_iterkeysv(entry)); /* won't clobber stack_sp */
2272 if (gimme == G_ARRAY) {
2274 /* might clobber stack_sp */
2275 sv_setsv(TARG, realhv ?
2276 hv_iterval(hash, entry) : avhv_iterval((AV*)hash, entry));
2281 else if (gimme == G_SCALAR)
2300 I32 gimme = GIMME_V;
2301 I32 discard = (gimme == G_VOID) ? G_DISCARD : 0;
2305 if (op->op_private & OPpSLICE) {
2309 hvtype = SvTYPE(hv);
2310 while (++MARK <= SP) {
2311 if (hvtype == SVt_PVHV)
2312 sv = hv_delete_ent(hv, *MARK, discard, 0);
2313 else if (hvtype == SVt_PVAV)
2314 sv = avhv_delete_ent((AV*)hv, *MARK, discard, 0);
2316 DIE("Not a HASH reference");
2317 *MARK = sv ? sv : &sv_undef;
2321 else if (gimme == G_SCALAR) {
2330 if (SvTYPE(hv) == SVt_PVHV)
2331 sv = hv_delete_ent(hv, keysv, discard, 0);
2332 else if (SvTYPE(hv) == SVt_PVAV)
2333 sv = avhv_delete_ent((AV*)hv, keysv, discard, 0);
2335 DIE("Not a HASH reference");
2349 if (SvTYPE(hv) == SVt_PVHV) {
2350 if (hv_exists_ent(hv, tmpsv, 0))
2352 } else if (SvTYPE(hv) == SVt_PVAV) {
2353 if (avhv_exists_ent((AV*)hv, tmpsv, 0))
2356 DIE("Not a HASH reference");
2363 djSP; dMARK; dORIGMARK;
2365 register HV *hv = (HV*)POPs;
2366 register I32 lval = op->op_flags & OPf_MOD;
2367 I32 realhv = (SvTYPE(hv) == SVt_PVHV);
2369 if (realhv || SvTYPE(hv) == SVt_PVAV) {
2370 while (++MARK <= SP) {
2374 he = hv_fetch_ent(hv, keysv, lval, 0);
2375 svp = he ? &HeVAL(he) : 0;
2377 svp = avhv_fetch_ent((AV*)hv, keysv, lval, 0);
2380 if (!he || HeVAL(he) == &sv_undef)
2381 DIE(no_helem, SvPV(keysv, na));
2382 if (op->op_private & OPpLVAL_INTRO)
2383 save_helem(hv, keysv, &HeVAL(he));
2385 *MARK = he ? HeVAL(he) : &sv_undef;
2388 if (GIMME != G_ARRAY) {
2396 /* List operators. */
2401 if (GIMME != G_ARRAY) {
2403 *MARK = *SP; /* unwanted list, return last item */
2414 SV **lastrelem = stack_sp;
2415 SV **lastlelem = stack_base + POPMARK;
2416 SV **firstlelem = stack_base + POPMARK + 1;
2417 register SV **firstrelem = lastlelem + 1;
2418 I32 arybase = curcop->cop_arybase;
2419 I32 lval = op->op_flags & OPf_MOD;
2420 I32 is_something_there = lval;
2422 register I32 max = lastrelem - lastlelem;
2423 register SV **lelem;
2426 if (GIMME != G_ARRAY) {
2427 ix = SvIVx(*lastlelem);
2432 if (ix < 0 || ix >= max)
2433 *firstlelem = &sv_undef;
2435 *firstlelem = firstrelem[ix];
2441 SP = firstlelem - 1;
2445 for (lelem = firstlelem; lelem <= lastlelem; lelem++) {
2451 else if (!(*lelem = firstrelem[ix]))
2456 if (ix >= max || !(*lelem = firstrelem[ix]))
2459 if (!is_something_there && (SvOK(*lelem) || SvGMAGICAL(*lelem)))
2460 is_something_there = TRUE;
2462 if (is_something_there)
2465 SP = firstlelem - 1;
2471 djSP; dMARK; dORIGMARK;
2472 I32 items = SP - MARK;
2473 SV *av = sv_2mortal((SV*)av_make(items, MARK+1));
2474 SP = ORIGMARK; /* av_make() might realloc stack_sp */
2481 djSP; dMARK; dORIGMARK;
2482 HV* hv = (HV*)sv_2mortal((SV*)newHV());
2486 SV *val = NEWSV(46, 0);
2488 sv_setsv(val, *++MARK);
2490 warn("Odd number of elements in hash list");
2491 (void)hv_store_ent(hv,key,val,0);
2500 djSP; dMARK; dORIGMARK;
2501 register AV *ary = (AV*)*++MARK;
2505 register I32 offset;
2506 register I32 length;
2513 if (SvRMAGICAL(ary) && (mg = mg_find((SV*)ary,'P'))) {
2514 *MARK-- = mg->mg_obj;
2518 perl_call_method("SPLICE",GIMME_V);
2527 offset = i = SvIVx(*MARK);
2529 offset += AvFILLp(ary) + 1;
2531 offset -= curcop->cop_arybase;
2535 length = SvIVx(*MARK++);
2540 length = AvMAX(ary) + 1; /* close enough to infinity */
2544 length = AvMAX(ary) + 1;
2546 if (offset > AvFILLp(ary) + 1)
2547 offset = AvFILLp(ary) + 1;
2548 after = AvFILLp(ary) + 1 - (offset + length);
2549 if (after < 0) { /* not that much array */
2550 length += after; /* offset+length now in array */
2556 /* At this point, MARK .. SP-1 is our new LIST */
2559 diff = newlen - length;
2560 if (newlen && !AvREAL(ary)) {
2564 assert(AvREAL(ary)); /* would leak, so croak */
2567 if (diff < 0) { /* shrinking the area */
2569 New(451, tmparyval, newlen, SV*); /* so remember insertion */
2570 Copy(MARK, tmparyval, newlen, SV*);
2573 MARK = ORIGMARK + 1;
2574 if (GIMME == G_ARRAY) { /* copy return vals to stack */
2575 MEXTEND(MARK, length);
2576 Copy(AvARRAY(ary)+offset, MARK, length, SV*);
2578 EXTEND_MORTAL(length);
2579 for (i = length, dst = MARK; i; i--) {
2580 if (!SvIMMORTAL(*dst))
2581 sv_2mortal(*dst); /* free them eventualy */
2588 *MARK = AvARRAY(ary)[offset+length-1];
2590 if (!SvIMMORTAL(*MARK))
2592 for (i = length - 1, dst = &AvARRAY(ary)[offset]; i > 0; i--)
2593 SvREFCNT_dec(*dst++); /* free them now */
2596 AvFILLp(ary) += diff;
2598 /* pull up or down? */
2600 if (offset < after) { /* easier to pull up */
2601 if (offset) { /* esp. if nothing to pull */
2602 src = &AvARRAY(ary)[offset-1];
2603 dst = src - diff; /* diff is negative */
2604 for (i = offset; i > 0; i--) /* can't trust Copy */
2608 SvPVX(ary) = (char*)(AvARRAY(ary) - diff); /* diff is negative */
2612 if (after) { /* anything to pull down? */
2613 src = AvARRAY(ary) + offset + length;
2614 dst = src + diff; /* diff is negative */
2615 Move(src, dst, after, SV*);
2617 dst = &AvARRAY(ary)[AvFILLp(ary)+1];
2618 /* avoid later double free */
2622 dst[--i] = &sv_undef;
2625 for (src = tmparyval, dst = AvARRAY(ary) + offset;
2627 *dst = NEWSV(46, 0);
2628 sv_setsv(*dst++, *src++);
2630 Safefree(tmparyval);
2633 else { /* no, expanding (or same) */
2635 New(452, tmparyval, length, SV*); /* so remember deletion */
2636 Copy(AvARRAY(ary)+offset, tmparyval, length, SV*);
2639 if (diff > 0) { /* expanding */
2641 /* push up or down? */
2643 if (offset < after && diff <= AvARRAY(ary) - AvALLOC(ary)) {
2647 Move(src, dst, offset, SV*);
2649 SvPVX(ary) = (char*)(AvARRAY(ary) - diff);/* diff is positive */
2651 AvFILLp(ary) += diff;
2654 if (AvFILLp(ary) + diff >= AvMAX(ary)) /* oh, well */
2655 av_extend(ary, AvFILLp(ary) + diff);
2656 AvFILLp(ary) += diff;
2659 dst = AvARRAY(ary) + AvFILLp(ary);
2661 for (i = after; i; i--) {
2668 for (src = MARK, dst = AvARRAY(ary) + offset; newlen; newlen--) {
2669 *dst = NEWSV(46, 0);
2670 sv_setsv(*dst++, *src++);
2672 MARK = ORIGMARK + 1;
2673 if (GIMME == G_ARRAY) { /* copy return vals to stack */
2675 Copy(tmparyval, MARK, length, SV*);
2677 EXTEND_MORTAL(length);
2678 for (i = length, dst = MARK; i; i--) {
2679 if (!SvIMMORTAL(*dst))
2680 sv_2mortal(*dst); /* free them eventualy */
2684 Safefree(tmparyval);
2688 else if (length--) {
2689 *MARK = tmparyval[length];
2691 if (!SvIMMORTAL(*MARK))
2693 while (length-- > 0)
2694 SvREFCNT_dec(tmparyval[length]);
2696 Safefree(tmparyval);
2707 djSP; dMARK; dORIGMARK; dTARGET;
2708 register AV *ary = (AV*)*++MARK;
2709 register SV *sv = &sv_undef;
2712 if (SvRMAGICAL(ary) && (mg = mg_find((SV*)ary,'P'))) {
2713 *MARK-- = mg->mg_obj;
2717 perl_call_method("PUSH",G_SCALAR|G_DISCARD);
2722 /* Why no pre-extend of ary here ? */
2723 for (++MARK; MARK <= SP; MARK++) {
2726 sv_setsv(sv, *MARK);
2731 PUSHi( AvFILL(ary) + 1 );
2739 SV *sv = av_pop(av);
2740 if (!SvIMMORTAL(sv) && AvREAL(av))
2741 (void)sv_2mortal(sv);
2750 SV *sv = av_shift(av);
2754 if (!SvIMMORTAL(sv) && AvREAL(av))
2755 (void)sv_2mortal(sv);
2762 djSP; dMARK; dORIGMARK; dTARGET;
2763 register AV *ary = (AV*)*++MARK;
2768 if (SvRMAGICAL(ary) && (mg = mg_find((SV*)ary,'P'))) {
2769 *MARK-- = mg->mg_obj;
2773 perl_call_method("UNSHIFT",G_SCALAR|G_DISCARD);
2778 av_unshift(ary, SP - MARK);
2781 sv_setsv(sv, *++MARK);
2782 (void)av_store(ary, i++, sv);
2786 PUSHi( AvFILL(ary) + 1 );
2796 if (GIMME == G_ARRAY) {
2807 register char *down;
2813 do_join(TARG, &sv_no, MARK, SP);
2815 sv_setsv(TARG, (SP > MARK) ? *SP : DEFSV);
2816 up = SvPV_force(TARG, len);
2818 down = SvPVX(TARG) + len - 1;
2824 (void)SvPOK_only(TARG);
2833 mul128(SV *sv, U8 m)
2836 char *s = SvPV(sv, len);
2840 if (!strnEQ(s, "0000", 4)) { /* need to grow sv */
2841 SV *tmpNew = newSVpv("0000000000", 10);
2843 sv_catsv(tmpNew, sv);
2844 SvREFCNT_dec(sv); /* free old sv */
2849 while (!*t) /* trailing '\0'? */
2852 i = ((*t - '0') << 7) + m;
2853 *(t--) = '0' + (i % 10);
2859 /* Explosives and implosives. */
2866 I32 gimme = GIMME_V;
2870 register char *pat = SvPV(left, llen);
2871 register char *s = SvPV(right, rlen);
2872 char *strend = s + rlen;
2874 register char *patend = pat + llen;
2879 /* These must not be in registers: */
2890 unsigned Quad_t auquad;
2896 register U32 culong;
2898 static char* bitcount = 0;
2901 if (gimme != G_ARRAY) { /* arrange to do first one only */
2903 for (patend = pat; !isALPHA(*patend) || *patend == 'x'; patend++) ;
2904 if (strchr("aAbBhHP", *patend) || *pat == '%') {
2906 while (isDIGIT(*patend) || *patend == '*')
2912 while (pat < patend) {
2914 datumtype = *pat++ & 0xFF;
2915 if (isSPACE(datumtype))
2919 else if (*pat == '*') {
2920 len = strend - strbeg; /* long enough */
2923 else if (isDIGIT(*pat)) {
2925 while (isDIGIT(*pat))
2926 len = (len * 10) + (*pat++ - '0');
2929 len = (datumtype != '@');
2932 croak("Invalid type in unpack: '%c'", (int)datumtype);
2933 case ',': /* grandfather in commas but with a warning */
2934 if (commas++ == 0 && dowarn)
2935 warn("Invalid type in unpack: '%c'", (int)datumtype);
2938 if (len == 1 && pat[-1] != '1')
2947 if (len > strend - strbeg)
2948 DIE("@ outside of string");
2952 if (len > s - strbeg)
2953 DIE("X outside of string");
2957 if (len > strend - s)
2958 DIE("x outside of string");
2963 if (len > strend - s)
2966 goto uchar_checksum;
2967 sv = NEWSV(35, len);
2968 sv_setpvn(sv, s, len);
2970 if (datumtype == 'A') {
2971 aptr = s; /* borrow register */
2972 s = SvPVX(sv) + len - 1;
2973 while (s >= SvPVX(sv) && (!*s || isSPACE(*s)))
2976 SvCUR_set(sv, s - SvPVX(sv));
2977 s = aptr; /* unborrow register */
2979 XPUSHs(sv_2mortal(sv));
2983 if (pat[-1] == '*' || len > (strend - s) * 8)
2984 len = (strend - s) * 8;
2987 Newz(601, bitcount, 256, char);
2988 for (bits = 1; bits < 256; bits++) {
2989 if (bits & 1) bitcount[bits]++;
2990 if (bits & 2) bitcount[bits]++;
2991 if (bits & 4) bitcount[bits]++;
2992 if (bits & 8) bitcount[bits]++;
2993 if (bits & 16) bitcount[bits]++;
2994 if (bits & 32) bitcount[bits]++;
2995 if (bits & 64) bitcount[bits]++;
2996 if (bits & 128) bitcount[bits]++;
3000 culong += bitcount[*(unsigned char*)s++];
3005 if (datumtype == 'b') {
3007 if (bits & 1) culong++;
3013 if (bits & 128) culong++;
3020 sv = NEWSV(35, len + 1);
3023 aptr = pat; /* borrow register */
3025 if (datumtype == 'b') {
3027 for (len = 0; len < aint; len++) {
3028 if (len & 7) /*SUPPRESS 595*/
3032 *pat++ = '0' + (bits & 1);
3037 for (len = 0; len < aint; len++) {
3042 *pat++ = '0' + ((bits & 128) != 0);
3046 pat = aptr; /* unborrow register */
3047 XPUSHs(sv_2mortal(sv));
3051 if (pat[-1] == '*' || len > (strend - s) * 2)
3052 len = (strend - s) * 2;
3053 sv = NEWSV(35, len + 1);
3056 aptr = pat; /* borrow register */
3058 if (datumtype == 'h') {
3060 for (len = 0; len < aint; len++) {
3065 *pat++ = hexdigit[bits & 15];
3070 for (len = 0; len < aint; len++) {
3075 *pat++ = hexdigit[(bits >> 4) & 15];
3079 pat = aptr; /* unborrow register */
3080 XPUSHs(sv_2mortal(sv));
3083 if (len > strend - s)
3088 if (aint >= 128) /* fake up signed chars */
3098 if (aint >= 128) /* fake up signed chars */
3101 sv_setiv(sv, (IV)aint);
3102 PUSHs(sv_2mortal(sv));
3107 if (len > strend - s)
3122 sv_setiv(sv, (IV)auint);
3123 PUSHs(sv_2mortal(sv));
3128 along = (strend - s) / SIZE16;
3145 sv_setiv(sv, (IV)ashort);
3146 PUSHs(sv_2mortal(sv));
3153 along = (strend - s) / SIZE16;
3158 COPY16(s, &aushort);
3161 if (datumtype == 'n')
3162 aushort = PerlSock_ntohs(aushort);
3165 if (datumtype == 'v')
3166 aushort = vtohs(aushort);
3175 COPY16(s, &aushort);
3179 if (datumtype == 'n')
3180 aushort = PerlSock_ntohs(aushort);
3183 if (datumtype == 'v')
3184 aushort = vtohs(aushort);
3186 sv_setiv(sv, (IV)aushort);
3187 PUSHs(sv_2mortal(sv));
3192 along = (strend - s) / sizeof(int);
3197 Copy(s, &aint, 1, int);
3200 cdouble += (double)aint;
3209 Copy(s, &aint, 1, int);
3212 sv_setiv(sv, (IV)aint);
3213 PUSHs(sv_2mortal(sv));
3218 along = (strend - s) / sizeof(unsigned int);
3223 Copy(s, &auint, 1, unsigned int);
3224 s += sizeof(unsigned int);
3226 cdouble += (double)auint;
3235 Copy(s, &auint, 1, unsigned int);
3236 s += sizeof(unsigned int);
3238 sv_setuv(sv, (UV)auint);
3239 PUSHs(sv_2mortal(sv));
3244 along = (strend - s) / SIZE32;
3252 cdouble += (double)along;
3264 sv_setiv(sv, (IV)along);
3265 PUSHs(sv_2mortal(sv));
3272 along = (strend - s) / SIZE32;
3280 if (datumtype == 'N')
3281 aulong = PerlSock_ntohl(aulong);
3284 if (datumtype == 'V')
3285 aulong = vtohl(aulong);
3288 cdouble += (double)aulong;
3300 if (datumtype == 'N')
3301 aulong = PerlSock_ntohl(aulong);
3304 if (datumtype == 'V')
3305 aulong = vtohl(aulong);
3308 sv_setuv(sv, (UV)aulong);
3309 PUSHs(sv_2mortal(sv));
3314 along = (strend - s) / sizeof(char*);
3320 if (sizeof(char*) > strend - s)
3323 Copy(s, &aptr, 1, char*);
3329 PUSHs(sv_2mortal(sv));
3339 while ((len > 0) && (s < strend)) {
3340 auv = (auv << 7) | (*s & 0x7f);
3341 if (!(*s++ & 0x80)) {
3345 PUSHs(sv_2mortal(sv));
3349 else if (++bytes >= sizeof(UV)) { /* promote to string */
3352 sv = newSVpvf("%.*Vu", (int)TYPE_DIGITS(UV), auv);
3353 while (s < strend) {
3354 sv = mul128(sv, *s & 0x7f);
3355 if (!(*s++ & 0x80)) {
3364 PUSHs(sv_2mortal(sv));
3369 if ((s >= strend) && bytes)
3370 croak("Unterminated compressed integer");
3375 if (sizeof(char*) > strend - s)
3378 Copy(s, &aptr, 1, char*);
3383 sv_setpvn(sv, aptr, len);
3384 PUSHs(sv_2mortal(sv));
3391 if (s + sizeof(Quad_t) > strend)
3394 Copy(s, &aquad, 1, Quad_t);
3395 s += sizeof(Quad_t);
3398 if (aquad >= IV_MIN && aquad <= IV_MAX)
3399 sv_setiv(sv, (IV)aquad);
3401 sv_setnv(sv, (double)aquad);
3402 PUSHs(sv_2mortal(sv));
3409 if (s + sizeof(unsigned Quad_t) > strend)
3412 Copy(s, &auquad, 1, unsigned Quad_t);
3413 s += sizeof(unsigned Quad_t);
3416 if (aquad <= UV_MAX)
3417 sv_setuv(sv, (UV)auquad);
3419 sv_setnv(sv, (double)auquad);
3420 PUSHs(sv_2mortal(sv));
3424 /* float and double added gnb@melba.bby.oz.au 22/11/89 */
3427 along = (strend - s) / sizeof(float);
3432 Copy(s, &afloat, 1, float);
3441 Copy(s, &afloat, 1, float);
3444 sv_setnv(sv, (double)afloat);
3445 PUSHs(sv_2mortal(sv));
3451 along = (strend - s) / sizeof(double);
3456 Copy(s, &adouble, 1, double);
3457 s += sizeof(double);
3465 Copy(s, &adouble, 1, double);
3466 s += sizeof(double);
3468 sv_setnv(sv, (double)adouble);
3469 PUSHs(sv_2mortal(sv));
3474 along = (strend - s) * 3 / 4;
3475 sv = NEWSV(42, along);
3478 while (s < strend && *s > ' ' && *s < 'a') {
3483 len = (*s++ - ' ') & 077;
3485 if (s < strend && *s >= ' ')
3486 a = (*s++ - ' ') & 077;
3489 if (s < strend && *s >= ' ')
3490 b = (*s++ - ' ') & 077;
3493 if (s < strend && *s >= ' ')
3494 c = (*s++ - ' ') & 077;
3497 if (s < strend && *s >= ' ')
3498 d = (*s++ - ' ') & 077;
3501 hunk[0] = (a << 2) | (b >> 4);
3502 hunk[1] = (b << 4) | (c >> 2);
3503 hunk[2] = (c << 6) | d;
3504 sv_catpvn(sv, hunk, (len > 3) ? 3 : len);
3509 else if (s[1] == '\n') /* possible checksum byte */
3512 XPUSHs(sv_2mortal(sv));
3517 if (strchr("fFdD", datumtype) ||
3518 (checksum > 32 && strchr("iIlLN", datumtype)) ) {
3522 while (checksum >= 16) {
3526 while (checksum >= 4) {
3532 along = (1 << checksum) - 1;
3533 while (cdouble < 0.0)
3535 cdouble = modf(cdouble / adouble, &trouble) * adouble;
3536 sv_setnv(sv, cdouble);
3539 if (checksum < 32) {
3540 aulong = (1 << checksum) - 1;
3543 sv_setuv(sv, (UV)culong);
3545 XPUSHs(sv_2mortal(sv));
3549 if (SP == oldsp && gimme == G_SCALAR)
3555 doencodes(register SV *sv, register char *s, register I32 len)
3560 sv_catpvn(sv, hunk, 1);
3563 hunk[0] = ' ' + (077 & (*s >> 2));
3564 hunk[1] = ' ' + (077 & (((*s << 4) & 060) | ((s[1] >> 4) & 017)));
3565 hunk[2] = ' ' + (077 & (((s[1] << 2) & 074) | ((s[2] >> 6) & 03)));
3566 hunk[3] = ' ' + (077 & (s[2] & 077));
3567 sv_catpvn(sv, hunk, 4);
3571 for (s = SvPVX(sv); *s; s++) {
3575 sv_catpvn(sv, "\n", 1);
3579 is_an_int(char *s, STRLEN l)
3581 SV *result = newSVpv("", l);
3582 char *result_c = SvPV(result, na); /* convenience */
3583 char *out = result_c;
3593 SvREFCNT_dec(result);
3616 SvREFCNT_dec(result);
3622 SvCUR_set(result, out - result_c);
3627 div128(SV *pnum, bool *done)
3628 /* must be '\0' terminated */
3632 char *s = SvPV(pnum, len);
3641 i = m * 10 + (*t - '0');
3643 r = (i >> 7); /* r < 10 */
3650 SvCUR_set(pnum, (STRLEN) (t - s));
3657 djSP; dMARK; dORIGMARK; dTARGET;
3658 register SV *cat = TARG;
3661 register char *pat = SvPVx(*++MARK, fromlen);
3662 register char *patend = pat + fromlen;
3667 static char null10[] = {0,0,0,0,0,0,0,0,0,0};
3668 static char *space10 = " ";
3670 /* These must not be in registers: */
3679 unsigned Quad_t auquad;
3688 sv_setpvn(cat, "", 0);
3689 while (pat < patend) {
3690 #define NEXTFROM (items-- > 0 ? *MARK++ : &sv_no)
3691 datumtype = *pat++ & 0xFF;
3692 if (isSPACE(datumtype))
3695 len = strchr("@Xxu", datumtype) ? 0 : items;
3698 else if (isDIGIT(*pat)) {
3700 while (isDIGIT(*pat))
3701 len = (len * 10) + (*pat++ - '0');
3707 croak("Invalid type in pack: '%c'", (int)datumtype);
3708 case ',': /* grandfather in commas but with a warning */
3709 if (commas++ == 0 && dowarn)
3710 warn("Invalid type in pack: '%c'", (int)datumtype);
3713 DIE("%% may only be used in unpack");
3724 if (SvCUR(cat) < len)
3725 DIE("X outside of string");
3732 sv_catpvn(cat, null10, 10);
3735 sv_catpvn(cat, null10, len);
3740 aptr = SvPV(fromstr, fromlen);
3744 sv_catpvn(cat, aptr, len);
3746 sv_catpvn(cat, aptr, fromlen);
3748 if (datumtype == 'A') {
3750 sv_catpvn(cat, space10, 10);
3753 sv_catpvn(cat, space10, len);
3757 sv_catpvn(cat, null10, 10);
3760 sv_catpvn(cat, null10, len);
3767 char *savepat = pat;
3772 aptr = SvPV(fromstr, fromlen);
3777 SvCUR(cat) += (len+7)/8;
3778 SvGROW(cat, SvCUR(cat) + 1);
3779 aptr = SvPVX(cat) + aint;
3784 if (datumtype == 'B') {
3785 for (len = 0; len++ < aint;) {
3786 items |= *pat++ & 1;
3790 *aptr++ = items & 0xff;
3796 for (len = 0; len++ < aint;) {
3802 *aptr++ = items & 0xff;
3808 if (datumtype == 'B')
3809 items <<= 7 - (aint & 7);
3811 items >>= 7 - (aint & 7);
3812 *aptr++ = items & 0xff;
3814 pat = SvPVX(cat) + SvCUR(cat);
3825 char *savepat = pat;
3830 aptr = SvPV(fromstr, fromlen);
3835 SvCUR(cat) += (len+1)/2;
3836 SvGROW(cat, SvCUR(cat) + 1);
3837 aptr = SvPVX(cat) + aint;
3842 if (datumtype == 'H') {
3843 for (len = 0; len++ < aint;) {
3845 items |= ((*pat++ & 15) + 9) & 15;
3847 items |= *pat++ & 15;
3851 *aptr++ = items & 0xff;
3857 for (len = 0; len++ < aint;) {
3859 items |= (((*pat++ & 15) + 9) & 15) << 4;
3861 items |= (*pat++ & 15) << 4;
3865 *aptr++ = items & 0xff;
3871 *aptr++ = items & 0xff;
3872 pat = SvPVX(cat) + SvCUR(cat);
3884 aint = SvIV(fromstr);
3886 sv_catpvn(cat, &achar, sizeof(char));
3889 /* Float and double added by gnb@melba.bby.oz.au 22/11/89 */
3894 afloat = (float)SvNV(fromstr);
3895 sv_catpvn(cat, (char *)&afloat, sizeof (float));
3902 adouble = (double)SvNV(fromstr);
3903 sv_catpvn(cat, (char *)&adouble, sizeof (double));
3909 ashort = (I16)SvIV(fromstr);
3911 ashort = PerlSock_htons(ashort);
3913 CAT16(cat, &ashort);
3919 ashort = (I16)SvIV(fromstr);
3921 ashort = htovs(ashort);
3923 CAT16(cat, &ashort);
3930 ashort = (I16)SvIV(fromstr);
3931 CAT16(cat, &ashort);
3937 auint = SvUV(fromstr);
3938 sv_catpvn(cat, (char*)&auint, sizeof(unsigned int));
3944 adouble = floor(SvNV(fromstr));
3947 croak("Cannot compress negative numbers");
3953 #ifdef CXUX_BROKEN_CONSTANT_CONVERT
3954 adouble <= UV_MAX_cxux
3961 char buf[1 + sizeof(UV)];
3962 char *in = buf + sizeof(buf);
3963 UV auv = U_V(adouble);;
3966 *--in = (auv & 0x7f) | 0x80;
3969 buf[sizeof(buf) - 1] &= 0x7f; /* clear continue bit */
3970 sv_catpvn(cat, in, (buf + sizeof(buf)) - in);
3972 else if (SvPOKp(fromstr)) { /* decimal string arithmetics */
3973 char *from, *result, *in;
3978 /* Copy string and check for compliance */
3979 from = SvPV(fromstr, len);
3980 if ((norm = is_an_int(from, len)) == NULL)
3981 croak("can compress only unsigned integer");
3983 New('w', result, len, char);
3987 *--in = div128(norm, &done) | 0x80;
3988 result[len - 1] &= 0x7F; /* clear continue bit */
3989 sv_catpvn(cat, in, (result + len) - in);
3991 SvREFCNT_dec(norm); /* free norm */
3993 else if (SvNOKp(fromstr)) {
3994 char buf[sizeof(double) * 2]; /* 8/7 <= 2 */
3995 char *in = buf + sizeof(buf);
3998 double next = floor(adouble / 128);
3999 *--in = (unsigned char)(adouble - (next * 128)) | 0x80;
4000 if (--in < buf) /* this cannot happen ;-) */
4001 croak ("Cannot compress integer");
4003 } while (adouble > 0);
4004 buf[sizeof(buf) - 1] &= 0x7f; /* clear continue bit */
4005 sv_catpvn(cat, in, (buf + sizeof(buf)) - in);
4008 croak("Cannot compress non integer");
4014 aint = SvIV(fromstr);
4015 sv_catpvn(cat, (char*)&aint, sizeof(int));
4021 aulong = SvUV(fromstr);
4023 aulong = PerlSock_htonl(aulong);
4025 CAT32(cat, &aulong);
4031 aulong = SvUV(fromstr);
4033 aulong = htovl(aulong);
4035 CAT32(cat, &aulong);
4041 aulong = SvUV(fromstr);
4042 CAT32(cat, &aulong);
4048 along = SvIV(fromstr);
4056 auquad = (unsigned Quad_t)SvIV(fromstr);
4057 sv_catpvn(cat, (char*)&auquad, sizeof(unsigned Quad_t));
4063 aquad = (Quad_t)SvIV(fromstr);
4064 sv_catpvn(cat, (char*)&aquad, sizeof(Quad_t));
4067 #endif /* HAS_QUAD */
4069 len = 1; /* assume SV is correct length */
4074 if (fromstr == &sv_undef)
4077 /* XXX better yet, could spirit away the string to
4078 * a safe spot and hang on to it until the result
4079 * of pack() (and all copies of the result) are
4082 if (dowarn && (SvTEMP(fromstr) || SvPADTMP(fromstr)))
4083 warn("Attempt to pack pointer to temporary value");
4084 if (SvPOK(fromstr) || SvNIOK(fromstr))
4085 aptr = SvPV(fromstr,na);
4087 aptr = SvPV_force(fromstr,na);
4089 sv_catpvn(cat, (char*)&aptr, sizeof(char*));
4094 aptr = SvPV(fromstr, fromlen);
4095 SvGROW(cat, fromlen * 4 / 3);
4100 while (fromlen > 0) {
4107 doencodes(cat, aptr, todo);
4126 register I32 limit = POPi; /* note, negative is forever */
4129 register char *s = SvPV(sv, len);
4130 char *strend = s + len;
4132 register REGEXP *rx;
4136 I32 maxiters = (strend - s) + 10;
4139 I32 origlimit = limit;
4142 AV *oldstack = curstack;
4143 I32 gimme = GIMME_V;
4144 I32 oldsave = savestack_ix;
4145 I32 make_mortal = 1;
4146 MAGIC *mg = (MAGIC *) NULL;
4149 Copy(&LvTARGOFF(POPs), &pm, 1, PMOP*);
4154 DIE("panic: do_split");
4155 rx = pm->op_pmregexp;
4157 TAINT_IF((pm->op_pmflags & PMf_LOCALE) &&
4158 (pm->op_pmflags & (PMf_WHITE | PMf_SKIPWHITE)));
4160 if (pm->op_pmreplroot)
4161 ary = GvAVn((GV*)pm->op_pmreplroot);
4162 else if (gimme != G_ARRAY)
4164 ary = (AV*)curpad[0];
4167 #endif /* USE_THREADS */
4170 if (ary && (gimme != G_ARRAY || (pm->op_pmflags & PMf_ONCE))) {
4176 if (SvRMAGICAL(ary) && (mg = mg_find((SV *) ary, 'P'))) {
4183 for (i = AvFILLp(ary); i >= 0; i--)
4184 AvARRAY(ary)[i] = &sv_undef; /* don't free mere refs */
4186 /* temporarily switch stacks */
4187 SWITCHSTACK(curstack, ary);
4191 base = SP - stack_base;
4193 if (pm->op_pmflags & PMf_SKIPWHITE) {
4194 if (pm->op_pmflags & PMf_LOCALE) {
4195 while (isSPACE_LC(*s))
4203 if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) {
4205 multiline = pm->op_pmflags & PMf_MULTILINE;
4209 limit = maxiters + 2;
4210 if (pm->op_pmflags & PMf_WHITE) {
4213 while (m < strend &&
4214 !((pm->op_pmflags & PMf_LOCALE)
4215 ? isSPACE_LC(*m) : isSPACE(*m)))
4220 dstr = NEWSV(30, m-s);
4221 sv_setpvn(dstr, s, m-s);
4227 while (s < strend &&
4228 ((pm->op_pmflags & PMf_LOCALE)
4229 ? isSPACE_LC(*s) : isSPACE(*s)))
4233 else if (strEQ("^", rx->precomp)) {
4236 for (m = s; m < strend && *m != '\n'; m++) ;
4240 dstr = NEWSV(30, m-s);
4241 sv_setpvn(dstr, s, m-s);
4248 else if (rx->check_substr && !rx->nparens
4249 && (rx->reganch & ROPT_CHECK_ALL)
4250 && !(rx->reganch & ROPT_ANCH)) {
4251 i = SvCUR(rx->check_substr);
4252 if (i == 1 && !SvTAIL(rx->check_substr)) {
4253 i = *SvPVX(rx->check_substr);
4256 for (m = s; m < strend && *m != i; m++) ;
4259 dstr = NEWSV(30, m-s);
4260 sv_setpvn(dstr, s, m-s);
4269 while (s < strend && --limit &&
4270 (m=fbm_instr((unsigned char*)s, (unsigned char*)strend,
4271 rx->check_substr)) )
4274 dstr = NEWSV(31, m-s);
4275 sv_setpvn(dstr, s, m-s);
4284 maxiters += (strend - s) * rx->nparens;
4285 while (s < strend && --limit &&
4286 regexec_flags(rx, s, strend, orig, 1, Nullsv, NULL, 0))
4288 TAINT_IF(RX_MATCH_TAINTED(rx));
4290 && rx->subbase != orig) {
4295 strend = s + (strend - m);
4298 dstr = NEWSV(32, m-s);
4299 sv_setpvn(dstr, s, m-s);
4304 for (i = 1; i <= rx->nparens; i++) {
4308 dstr = NEWSV(33, m-s);
4309 sv_setpvn(dstr, s, m-s);
4312 dstr = NEWSV(33, 0);
4322 LEAVE_SCOPE(oldsave);
4323 iters = (SP - stack_base) - base;
4324 if (iters > maxiters)
4327 /* keep field after final delim? */
4328 if (s < strend || (iters && origlimit)) {
4329 dstr = NEWSV(34, strend-s);
4330 sv_setpvn(dstr, s, strend-s);
4336 else if (!origlimit) {
4337 while (iters > 0 && (!TOPs || !SvANY(TOPs) || SvCUR(TOPs) == 0))
4343 SWITCHSTACK(ary, oldstack);
4344 if (SvSMAGICAL(ary)) {
4349 if (gimme == G_ARRAY) {
4351 Copy(AvARRAY(ary), SP + 1, iters, SV*);
4359 perl_call_method("PUSH",G_SCALAR|G_DISCARD);
4362 if (gimme == G_ARRAY) {
4363 /* EXTEND should not be needed - we just popped them */
4365 for (i=0; i < iters; i++) {
4366 SV **svp = av_fetch(ary, i, FALSE);
4367 PUSHs((svp) ? *svp : &sv_undef);
4374 if (gimme == G_ARRAY)
4377 if (iters || !pm->op_pmreplroot) {
4387 unlock_condpair(void *svv)
4390 MAGIC *mg = mg_find((SV*)svv, 'm');
4393 croak("panic: unlock_condpair unlocking non-mutex");
4394 MUTEX_LOCK(MgMUTEXP(mg));
4395 if (MgOWNER(mg) != thr)
4396 croak("panic: unlock_condpair unlocking mutex that we don't own");
4398 COND_SIGNAL(MgOWNERCONDP(mg));
4399 DEBUG_L(PerlIO_printf(PerlIO_stderr(), "0x%lx: unlock 0x%lx\n",
4400 (unsigned long)thr, (unsigned long)svv);)
4401 MUTEX_UNLOCK(MgMUTEXP(mg));
4403 #endif /* USE_THREADS */
4416 mg = condpair_magic(sv);
4417 MUTEX_LOCK(MgMUTEXP(mg));
4418 if (MgOWNER(mg) == thr)
4419 MUTEX_UNLOCK(MgMUTEXP(mg));
4422 COND_WAIT(MgOWNERCONDP(mg), MgMUTEXP(mg));
4424 DEBUG_L(PerlIO_printf(PerlIO_stderr(), "0x%lx: pp_lock lock 0x%lx\n",
4425 (unsigned long)thr, (unsigned long)sv);)
4426 MUTEX_UNLOCK(MgMUTEXP(mg));
4427 SvREFCNT_inc(sv); /* keep alive until magic_mutexfree */
4428 save_destructor(unlock_condpair, sv);
4430 #endif /* USE_THREADS */
4431 if (SvTYPE(retsv) == SVt_PVAV || SvTYPE(retsv) == SVt_PVHV
4432 || SvTYPE(retsv) == SVt_PVCV) {
4433 retsv = refto(retsv);
4444 if (op->op_private & OPpLVAL_INTRO)
4445 PUSHs(*save_threadsv(op->op_targ));
4447 PUSHs(THREADSV(op->op_targ));
4450 DIE("tried to access per-thread data in non-threaded perl");
4451 #endif /* USE_THREADS */