/* pp_pack.c
*
* Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
- * 2000, 2001, 2002, 2003, by Larry Wall and others
+ * 2000, 2001, 2002, 2003, 2004, by Larry Wall and others
*
* You may distribute under the terms of either the GNU General Public
* License or the Artistic License, as specified in the README file.
#include "perl.h"
/*
- * The compiler on Concurrent CX/UX systems has a subtle bug which only
- * seems to show up when compiling pp.c - it generates the wrong double
- * precision constant value for (double)UV_MAX when used inline in the body
- * of the code below, so this makes a static variable up front (which the
- * compiler seems to get correct) and uses it in place of UV_MAX below.
- */
-#ifdef CXUX_BROKEN_CONSTANT_CONVERT
-static double UV_MAX_cxux = ((double)UV_MAX);
-#endif
-
-/*
* Offset for integer pack/unpack.
*
* On architectures where I16 and I32 aren't really 16 and 32 bits,
/* CROSSCOMPILE and MULTIARCH are going to affect pp_pack() and pp_unpack().
--jhi Feb 1999 */
-#if SHORTSIZE != SIZE16 || LONGSIZE != SIZE32
-# define PERL_NATINT_PACK
-#endif
-
-#if LONGSIZE > 4 && defined(_CRAY)
-# if BYTEORDER == 0x12345678
+#if U16SIZE > SIZE16 || U32SIZE > SIZE32
+# if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678 /* little-endian */
# define OFF16(p) (char*)(p)
# define OFF32(p) (char*)(p)
# else
-# if BYTEORDER == 0x87654321
+# if BYTEORDER == 0x4321 || BYTEORDER == 0x87654321 /* big-endian */
# define OFF16(p) ((char*)(p) + (sizeof(U16) - SIZE16))
# define OFF32(p) ((char*)(p) + (sizeof(U32) - SIZE32))
# else
#endif
#define TYPE_IS_SHRIEKING 0x100
+#define TYPE_IS_BIG_ENDIAN 0x200
+#define TYPE_IS_LITTLE_ENDIAN 0x400
+#define TYPE_ENDIANNESS_MASK (TYPE_IS_BIG_ENDIAN|TYPE_IS_LITTLE_ENDIAN)
+#define TYPE_NO_ENDIANNESS(t) ((t) & ~TYPE_ENDIANNESS_MASK)
+#define TYPE_NO_MODIFIERS(t) ((t) & 0xFF)
+
+#define DO_BO_UNPACK(var, type) \
+ STMT_START { \
+ switch (datumtype & TYPE_ENDIANNESS_MASK) { \
+ case TYPE_IS_BIG_ENDIAN: var = my_betoh ## type (var); break; \
+ case TYPE_IS_LITTLE_ENDIAN: var = my_letoh ## type (var); break; \
+ default: break; \
+ } \
+ } STMT_END
+
+#define DO_BO_PACK(var, type) \
+ STMT_START { \
+ switch (datumtype & TYPE_ENDIANNESS_MASK) { \
+ case TYPE_IS_BIG_ENDIAN: var = my_htobe ## type (var); break; \
+ case TYPE_IS_LITTLE_ENDIAN: var = my_htole ## type (var); break; \
+ default: break; \
+ } \
+ } STMT_END
+
+#define DO_BO_UNPACK_PTR(var, type, pre_cast) \
+ STMT_START { \
+ switch (datumtype & TYPE_ENDIANNESS_MASK) { \
+ case TYPE_IS_BIG_ENDIAN: \
+ var = (void *) my_betoh ## type ((pre_cast) var); \
+ break; \
+ case TYPE_IS_LITTLE_ENDIAN: \
+ var = (void *) my_letoh ## type ((pre_cast) var); \
+ break; \
+ default: \
+ break; \
+ } \
+ } STMT_END
+
+#define DO_BO_PACK_PTR(var, type, pre_cast) \
+ STMT_START { \
+ switch (datumtype & TYPE_ENDIANNESS_MASK) { \
+ case TYPE_IS_BIG_ENDIAN: \
+ var = (void *) my_htobe ## type ((pre_cast) var); \
+ break; \
+ case TYPE_IS_LITTLE_ENDIAN: \
+ var = (void *) my_htole ## type ((pre_cast) var); \
+ break; \
+ default: \
+ break; \
+ } \
+ } STMT_END
+
+#define BO_CANT_DOIT(action, type) \
+ STMT_START { \
+ switch (datumtype & TYPE_ENDIANNESS_MASK) { \
+ case TYPE_IS_BIG_ENDIAN: \
+ Perl_croak(aTHX_ "Can't %s big-endian %ss on this " \
+ "platform", #action, #type); \
+ break; \
+ case TYPE_IS_LITTLE_ENDIAN: \
+ Perl_croak(aTHX_ "Can't %s little-endian %ss on this " \
+ "platform", #action, #type); \
+ break; \
+ default: \
+ break; \
+ } \
+ } STMT_END
+
+#if PTRSIZE == INTSIZE
+# define DO_BO_UNPACK_P(var) DO_BO_UNPACK_PTR(var, i, int)
+# define DO_BO_PACK_P(var) DO_BO_PACK_PTR(var, i, int)
+#elif PTRSIZE == LONGSIZE
+# define DO_BO_UNPACK_P(var) DO_BO_UNPACK_PTR(var, l, long)
+# define DO_BO_PACK_P(var) DO_BO_PACK_PTR(var, l, long)
+#else
+# define DO_BO_UNPACK_P(var) BO_CANT_DOIT(unpack, pointer)
+# define DO_BO_PACK_P(var) BO_CANT_DOIT(pack, pointer)
+#endif
+
+#if defined(my_htolen) && defined(my_letohn) && \
+ defined(my_htoben) && defined(my_betohn)
+# define DO_BO_UNPACK_N(var, type) \
+ STMT_START { \
+ switch (datumtype & TYPE_ENDIANNESS_MASK) { \
+ case TYPE_IS_BIG_ENDIAN: my_betohn(&var, sizeof(type)); break;\
+ case TYPE_IS_LITTLE_ENDIAN: my_letohn(&var, sizeof(type)); break;\
+ default: break; \
+ } \
+ } STMT_END
+
+# define DO_BO_PACK_N(var, type) \
+ STMT_START { \
+ switch (datumtype & TYPE_ENDIANNESS_MASK) { \
+ case TYPE_IS_BIG_ENDIAN: my_htoben(&var, sizeof(type)); break;\
+ case TYPE_IS_LITTLE_ENDIAN: my_htolen(&var, sizeof(type)); break;\
+ default: break; \
+ } \
+ } STMT_END
+#else
+# define DO_BO_UNPACK_N(var, type) BO_CANT_DOIT(unpack, type)
+# define DO_BO_PACK_N(var, type) BO_CANT_DOIT(pack, type)
+#endif
/* Returns the sizeof() struct described by pat */
STATIC I32
break;
}
- switch(symptr->code) {
+ /* endianness doesn't influence the size of a type */
+ switch(TYPE_NO_ENDIANNESS(symptr->code)) {
default:
- Perl_croak(aTHX_ "Invalid type '%c' in %s",
- (int)symptr->code,
+ Perl_croak(aTHX_ "Invalid type '%c' in %s",
+ (int)TYPE_NO_MODIFIERS(symptr->code),
symptr->flags & FLAG_PACK ? "pack" : "unpack" );
case '@':
case '/':
#else
/* FALL THROUGH */
#endif
+ case 'v' | TYPE_IS_SHRIEKING:
+ case 'n' | TYPE_IS_SHRIEKING:
case 'v':
case 'n':
case 'S':
#else
/* FALL THROUGH */
#endif
+ case 'V' | TYPE_IS_SHRIEKING:
+ case 'N' | TYPE_IS_SHRIEKING:
case 'V':
case 'N':
case 'L':
symptr->flags & FLAG_PACK ? "pack" : "unpack" );
}
- /* test for '!' modifier */
- if (patptr < patend && *patptr == '!') {
- static const char natstr[] = "sSiIlLxX";
- patptr++;
- if (strchr(natstr, code))
- code |= TYPE_IS_SHRIEKING;
- else
- Perl_croak(aTHX_ "'!' allowed only after types %s in %s",
- natstr, symptr->flags & FLAG_PACK ? "pack" : "unpack" );
+ /* look for modifiers */
+ while (patptr < patend) {
+ const char *allowed;
+ I32 modifier = 0;
+ switch (*patptr) {
+ case '!':
+ modifier = TYPE_IS_SHRIEKING;
+ allowed = "sSiIlLxXnNvV";
+ break;
+ case '>':
+ modifier = TYPE_IS_BIG_ENDIAN;
+ allowed = "sSiIlLqQjJfFdDpP";
+ break;
+ case '<':
+ modifier = TYPE_IS_LITTLE_ENDIAN;
+ allowed = "sSiIlLqQjJfFdDpP";
+ break;
+ default:
+ break;
+ }
+ if (modifier == 0)
+ break;
+ if (!strchr(allowed, TYPE_NO_MODIFIERS(code)))
+ Perl_croak(aTHX_ "'%c' allowed only after types %s in %s", *patptr,
+ allowed, symptr->flags & FLAG_PACK ? "pack" : "unpack" );
+ if ((code | modifier) == (code | TYPE_IS_BIG_ENDIAN | TYPE_IS_LITTLE_ENDIAN))
+ Perl_croak(aTHX_ "Can't use both '<' and '>' after type '%c' in %s",
+ (int) TYPE_NO_MODIFIERS(code),
+ symptr->flags & FLAG_PACK ? "pack" : "unpack" );
+ if (ckWARN(WARN_UNPACK)) {
+ if (code & modifier)
+ Perl_warner(aTHX_ packWARN(WARN_UNPACK),
+ "Duplicate modifier '%c' after '%c' in %s",
+ *patptr, (int) TYPE_NO_MODIFIERS(code),
+ symptr->flags & FLAG_PACK ? "pack" : "unpack" );
+ }
+ code |= modifier;
+ patptr++;
}
/* look for count and/or / */
/*
=for apidoc unpackstring
-The engine implementing unpack() Perl function.
+The engine implementing unpack() Perl function. C<unpackstring> puts the
+extracted list items on the stack and returns the number of elements.
+Issue C<PUTBACK> before and C<SPAGAIN> after the call to this function.
=cut */
howlen_t howlen;
/* These must not be in registers: */
- short ashort;
- int aint;
- long along;
+ I16 ai16;
+ U16 au16;
+ I32 ai32;
+ U32 au32;
#ifdef HAS_QUAD
Quad_t aquad;
+ Uquad_t auquad;
+#endif
+#if SHORTSIZE != SIZE16
+ short ashort;
+ unsigned short aushort;
#endif
- U16 aushort;
+ int aint;
unsigned int auint;
- U32 aulong;
-#ifdef HAS_QUAD
- Uquad_t auquad;
+ long along;
+#if LONGSIZE != SIZE32
+ unsigned long aulong;
#endif
char *aptr;
float afloat;
double adouble;
+#if defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE)
+ long double aldouble;
+#endif
+ IV aiv;
+ UV auv;
+ NV anv;
+
I32 checksum = 0;
UV cuv = 0;
NV cdouble = 0.0;
bool beyond = FALSE;
bool unpack_only_one = (symptr->flags & FLAG_UNPACK_ONLY_ONE) != 0;
- IV aiv;
- UV auv;
- NV anv;
-#if defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE)
- long double aldouble;
-#endif
-
while (next_symbol(symptr)) {
datumtype = symptr->code;
/* do first one only unless in list context
redo_switch:
beyond = s >= strend;
- switch(datumtype) {
+ switch(TYPE_NO_ENDIANNESS(datumtype)) {
default:
- Perl_croak(aTHX_ "Invalid type '%c' in unpack", (int)datumtype );
+ Perl_croak(aTHX_ "Invalid type '%c' in unpack", (int)TYPE_NO_MODIFIERS(datumtype) );
case '%':
if (howlen == e_no_len)
if (len > along)
len = along;
if (checksum) {
- short ashort;
while (len-- > 0) {
- COPYNN(s, &ashort, sizeof(short));
- s += sizeof(short);
- if (checksum > bits_in_uv)
- cdouble += (NV)ashort;
- else
- cuv += ashort;
-
+ COPYNN(s, &ashort, sizeof(short));
+ DO_BO_UNPACK(ashort, s);
+ s += sizeof(short);
+ if (checksum > bits_in_uv)
+ cdouble += (NV)ashort;
+ else
+ cuv += ashort;
}
}
else {
- short ashort;
if (len && unpack_only_one)
len = 1;
EXTEND(SP, len);
EXTEND_MORTAL(len);
while (len-- > 0) {
COPYNN(s, &ashort, sizeof(short));
+ DO_BO_UNPACK(ashort, s);
s += sizeof(short);
sv = NEWSV(38, 0);
sv_setiv(sv, (IV)ashort);
len = along;
if (checksum) {
while (len-- > 0) {
- COPY16(s, &ashort);
-#if SHORTSIZE > SIZE16
- if (ashort > 32767)
- ashort -= 65536;
+ COPY16(s, &ai16);
+ DO_BO_UNPACK(ai16, 16);
+#if U16SIZE > SIZE16
+ if (ai16 > 32767)
+ ai16 -= 65536;
#endif
s += SIZE16;
if (checksum > bits_in_uv)
- cdouble += (NV)ashort;
+ cdouble += (NV)ai16;
else
- cuv += ashort;
+ cuv += ai16;
}
}
else {
EXTEND_MORTAL(len);
while (len-- > 0) {
- COPY16(s, &ashort);
-#if SHORTSIZE > SIZE16
- if (ashort > 32767)
- ashort -= 65536;
+ COPY16(s, &ai16);
+ DO_BO_UNPACK(ai16, 16);
+#if U16SIZE > SIZE16
+ if (ai16 > 32767)
+ ai16 -= 65536;
#endif
s += SIZE16;
sv = NEWSV(38, 0);
- sv_setiv(sv, (IV)ashort);
+ sv_setiv(sv, (IV)ai16);
PUSHs(sv_2mortal(sv));
}
}
if (len > along)
len = along;
if (checksum) {
- unsigned short aushort;
while (len-- > 0) {
COPYNN(s, &aushort, sizeof(unsigned short));
+ DO_BO_UNPACK(aushort, s);
s += sizeof(unsigned short);
if (checksum > bits_in_uv)
cdouble += (NV)aushort;
EXTEND(SP, len);
EXTEND_MORTAL(len);
while (len-- > 0) {
- unsigned short aushort;
COPYNN(s, &aushort, sizeof(unsigned short));
+ DO_BO_UNPACK(aushort, s);
s += sizeof(unsigned short);
sv = NEWSV(39, 0);
sv_setiv(sv, (UV)aushort);
len = along;
if (checksum) {
while (len-- > 0) {
- COPY16(s, &aushort);
+ COPY16(s, &au16);
+ DO_BO_UNPACK(au16, 16);
s += SIZE16;
#ifdef HAS_NTOHS
if (datumtype == 'n')
- aushort = PerlSock_ntohs(aushort);
+ au16 = PerlSock_ntohs(au16);
#endif
#ifdef HAS_VTOHS
if (datumtype == 'v')
- aushort = vtohs(aushort);
+ au16 = vtohs(au16);
#endif
if (checksum > bits_in_uv)
- cdouble += (NV)aushort;
+ cdouble += (NV)au16;
else
- cuv += aushort;
+ cuv += au16;
}
}
else {
EXTEND(SP, len);
EXTEND_MORTAL(len);
while (len-- > 0) {
- COPY16(s, &aushort);
+ COPY16(s, &au16);
+ DO_BO_UNPACK(au16, 16);
s += SIZE16;
sv = NEWSV(39, 0);
#ifdef HAS_NTOHS
if (datumtype == 'n')
- aushort = PerlSock_ntohs(aushort);
+ au16 = PerlSock_ntohs(au16);
#endif
#ifdef HAS_VTOHS
if (datumtype == 'v')
- aushort = vtohs(aushort);
+ au16 = vtohs(au16);
#endif
- sv_setiv(sv, (UV)aushort);
+ sv_setiv(sv, (UV)au16);
+ PUSHs(sv_2mortal(sv));
+ }
+ }
+ break;
+ case 'v' | TYPE_IS_SHRIEKING:
+ case 'n' | TYPE_IS_SHRIEKING:
+ along = (strend - s) / SIZE16;
+ if (len > along)
+ len = along;
+ if (checksum) {
+ while (len-- > 0) {
+ COPY16(s, &ai16);
+ s += SIZE16;
+#ifdef HAS_NTOHS
+ if (datumtype == ('n' | TYPE_IS_SHRIEKING))
+ ai16 = (I16)PerlSock_ntohs((U16)ai16);
+#endif
+#ifdef HAS_VTOHS
+ if (datumtype == ('v' | TYPE_IS_SHRIEKING))
+ ai16 = (I16)vtohs((U16)ai16);
+#endif
+ if (checksum > bits_in_uv)
+ cdouble += (NV)ai16;
+ else
+ cuv += ai16;
+ }
+ }
+ else {
+ if (len && unpack_only_one)
+ len = 1;
+ EXTEND(SP, len);
+ EXTEND_MORTAL(len);
+ while (len-- > 0) {
+ COPY16(s, &ai16);
+ s += SIZE16;
+#ifdef HAS_NTOHS
+ if (datumtype == ('n' | TYPE_IS_SHRIEKING))
+ ai16 = (I16)PerlSock_ntohs((U16)ai16);
+#endif
+#ifdef HAS_VTOHS
+ if (datumtype == ('v' | TYPE_IS_SHRIEKING))
+ ai16 = (I16)vtohs((U16)ai16);
+#endif
+ sv = NEWSV(39, 0);
+ sv_setiv(sv, (IV)ai16);
PUSHs(sv_2mortal(sv));
}
}
if (checksum) {
while (len-- > 0) {
Copy(s, &aint, 1, int);
+ DO_BO_UNPACK(aint, i);
s += sizeof(int);
if (checksum > bits_in_uv)
cdouble += (NV)aint;
EXTEND_MORTAL(len);
while (len-- > 0) {
Copy(s, &aint, 1, int);
+ DO_BO_UNPACK(aint, i);
s += sizeof(int);
sv = NEWSV(40, 0);
#ifdef __osf__
if (checksum) {
while (len-- > 0) {
Copy(s, &auint, 1, unsigned int);
+ DO_BO_UNPACK(auint, i);
s += sizeof(unsigned int);
if (checksum > bits_in_uv)
cdouble += (NV)auint;
EXTEND_MORTAL(len);
while (len-- > 0) {
Copy(s, &auint, 1, unsigned int);
+ DO_BO_UNPACK(auint, i);
s += sizeof(unsigned int);
sv = NEWSV(41, 0);
#ifdef __osf__
if (checksum) {
while (len-- > 0) {
Copy(s, &aiv, 1, IV);
+#if IVSIZE == INTSIZE
+ DO_BO_UNPACK(aiv, i);
+#elif IVSIZE == LONGSIZE
+ DO_BO_UNPACK(aiv, l);
+#elif defined(HAS_QUAD) && IVSIZE == U64SIZE
+ DO_BO_UNPACK(aiv, 64);
+#endif
s += IVSIZE;
if (checksum > bits_in_uv)
cdouble += (NV)aiv;
EXTEND_MORTAL(len);
while (len-- > 0) {
Copy(s, &aiv, 1, IV);
+#if IVSIZE == INTSIZE
+ DO_BO_UNPACK(aiv, i);
+#elif IVSIZE == LONGSIZE
+ DO_BO_UNPACK(aiv, l);
+#elif defined(HAS_QUAD) && IVSIZE == U64SIZE
+ DO_BO_UNPACK(aiv, 64);
+#endif
s += IVSIZE;
sv = NEWSV(40, 0);
sv_setiv(sv, aiv);
if (checksum) {
while (len-- > 0) {
Copy(s, &auv, 1, UV);
+#if UVSIZE == INTSIZE
+ DO_BO_UNPACK(auv, i);
+#elif UVSIZE == LONGSIZE
+ DO_BO_UNPACK(auv, l);
+#elif defined(HAS_QUAD) && UVSIZE == U64SIZE
+ DO_BO_UNPACK(auv, 64);
+#endif
s += UVSIZE;
if (checksum > bits_in_uv)
cdouble += (NV)auv;
EXTEND_MORTAL(len);
while (len-- > 0) {
Copy(s, &auv, 1, UV);
+#if UVSIZE == INTSIZE
+ DO_BO_UNPACK(auv, i);
+#elif UVSIZE == LONGSIZE
+ DO_BO_UNPACK(auv, l);
+#elif defined(HAS_QUAD) && UVSIZE == U64SIZE
+ DO_BO_UNPACK(auv, 64);
+#endif
s += UVSIZE;
sv = NEWSV(41, 0);
sv_setuv(sv, auv);
if (checksum) {
while (len-- > 0) {
COPYNN(s, &along, sizeof(long));
+ DO_BO_UNPACK(along, l);
s += sizeof(long);
if (checksum > bits_in_uv)
cdouble += (NV)along;
EXTEND_MORTAL(len);
while (len-- > 0) {
COPYNN(s, &along, sizeof(long));
+ DO_BO_UNPACK(along, l);
s += sizeof(long);
sv = NEWSV(42, 0);
sv_setiv(sv, (IV)along);
I32 along;
#endif
COPY32(s, &along);
+ DO_BO_UNPACK(along, 32);
#if LONGSIZE > SIZE32
if (along > 2147483647)
along -= 4294967296;
I32 along;
#endif
COPY32(s, &along);
+ DO_BO_UNPACK(along, 32);
#if LONGSIZE > SIZE32
if (along > 2147483647)
along -= 4294967296;
len = along;
if (checksum) {
while (len-- > 0) {
- unsigned long aulong;
COPYNN(s, &aulong, sizeof(unsigned long));
+ DO_BO_UNPACK(aulong, l);
s += sizeof(unsigned long);
if (checksum > bits_in_uv)
cdouble += (NV)aulong;
EXTEND(SP, len);
EXTEND_MORTAL(len);
while (len-- > 0) {
- unsigned long aulong;
COPYNN(s, &aulong, sizeof(unsigned long));
+ DO_BO_UNPACK(aulong, l);
s += sizeof(unsigned long);
sv = NEWSV(43, 0);
sv_setuv(sv, (UV)aulong);
len = along;
if (checksum) {
while (len-- > 0) {
- COPY32(s, &aulong);
+ COPY32(s, &au32);
+ DO_BO_UNPACK(au32, 32);
s += SIZE32;
#ifdef HAS_NTOHL
if (datumtype == 'N')
- aulong = PerlSock_ntohl(aulong);
+ au32 = PerlSock_ntohl(au32);
#endif
#ifdef HAS_VTOHL
if (datumtype == 'V')
- aulong = vtohl(aulong);
+ au32 = vtohl(au32);
#endif
if (checksum > bits_in_uv)
- cdouble += (NV)aulong;
+ cdouble += (NV)au32;
else
- cuv += aulong;
+ cuv += au32;
}
}
else {
EXTEND(SP, len);
EXTEND_MORTAL(len);
while (len-- > 0) {
- COPY32(s, &aulong);
+ COPY32(s, &au32);
+ DO_BO_UNPACK(au32, 32);
s += SIZE32;
#ifdef HAS_NTOHL
if (datumtype == 'N')
- aulong = PerlSock_ntohl(aulong);
+ au32 = PerlSock_ntohl(au32);
#endif
#ifdef HAS_VTOHL
if (datumtype == 'V')
- aulong = vtohl(aulong);
+ au32 = vtohl(au32);
#endif
sv = NEWSV(43, 0);
- sv_setuv(sv, (UV)aulong);
+ sv_setuv(sv, (UV)au32);
+ PUSHs(sv_2mortal(sv));
+ }
+ }
+ break;
+ case 'V' | TYPE_IS_SHRIEKING:
+ case 'N' | TYPE_IS_SHRIEKING:
+ along = (strend - s) / SIZE32;
+ if (len > along)
+ len = along;
+ if (checksum) {
+ while (len-- > 0) {
+ COPY32(s, &ai32);
+ s += SIZE32;
+#ifdef HAS_NTOHL
+ if (datumtype == ('N' | TYPE_IS_SHRIEKING))
+ ai32 = (I32)PerlSock_ntohl((U32)ai32);
+#endif
+#ifdef HAS_VTOHL
+ if (datumtype == ('V' | TYPE_IS_SHRIEKING))
+ ai32 = (I32)vtohl((U32)ai32);
+#endif
+ if (checksum > bits_in_uv)
+ cdouble += (NV)ai32;
+ else
+ cuv += ai32;
+ }
+ }
+ else {
+ if (len && unpack_only_one)
+ len = 1;
+ EXTEND(SP, len);
+ EXTEND_MORTAL(len);
+ while (len-- > 0) {
+ COPY32(s, &ai32);
+ s += SIZE32;
+#ifdef HAS_NTOHL
+ if (datumtype == ('N' | TYPE_IS_SHRIEKING))
+ ai32 = (I32)PerlSock_ntohl((U32)ai32);
+#endif
+#ifdef HAS_VTOHL
+ if (datumtype == ('V' | TYPE_IS_SHRIEKING))
+ ai32 = (I32)vtohl((U32)ai32);
+#endif
+ sv = NEWSV(43, 0);
+ sv_setiv(sv, (IV)ai32);
PUSHs(sv_2mortal(sv));
}
}
break;
else {
Copy(s, &aptr, 1, char*);
+ DO_BO_UNPACK_P(aptr);
s += sizeof(char*);
}
sv = NEWSV(44, 0);
break;
else {
Copy(s, &aptr, 1, char*);
+ DO_BO_UNPACK_P(aptr);
s += sizeof(char*);
}
sv = NEWSV(44, 0);
if (checksum) {
while (len-- > 0) {
Copy(s, &aquad, 1, Quad_t);
+ DO_BO_UNPACK(aquad, 64);
s += sizeof(Quad_t);
if (checksum > bits_in_uv)
cdouble += (NV)aquad;
aquad = 0;
else {
Copy(s, &aquad, 1, Quad_t);
+ DO_BO_UNPACK(aquad, 64);
s += sizeof(Quad_t);
}
sv = NEWSV(42, 0);
if (checksum) {
while (len-- > 0) {
Copy(s, &auquad, 1, Uquad_t);
+ DO_BO_UNPACK(auquad, 64);
s += sizeof(Uquad_t);
if (checksum > bits_in_uv)
cdouble += (NV)auquad;
auquad = 0;
else {
Copy(s, &auquad, 1, Uquad_t);
+ DO_BO_UNPACK(auquad, 64);
s += sizeof(Uquad_t);
}
sv = NEWSV(43, 0);
if (checksum) {
while (len-- > 0) {
Copy(s, &afloat, 1, float);
+ DO_BO_UNPACK_N(afloat, float);
s += sizeof(float);
cdouble += afloat;
}
EXTEND_MORTAL(len);
while (len-- > 0) {
Copy(s, &afloat, 1, float);
+ DO_BO_UNPACK_N(afloat, float);
s += sizeof(float);
sv = NEWSV(47, 0);
sv_setnv(sv, (NV)afloat);
if (checksum) {
while (len-- > 0) {
Copy(s, &adouble, 1, double);
+ DO_BO_UNPACK_N(adouble, double);
s += sizeof(double);
cdouble += adouble;
}
EXTEND_MORTAL(len);
while (len-- > 0) {
Copy(s, &adouble, 1, double);
+ DO_BO_UNPACK_N(adouble, double);
s += sizeof(double);
sv = NEWSV(48, 0);
sv_setnv(sv, (NV)adouble);
if (checksum) {
while (len-- > 0) {
Copy(s, &anv, 1, NV);
+ DO_BO_UNPACK_N(anv, NV);
s += NVSIZE;
cdouble += anv;
}
EXTEND_MORTAL(len);
while (len-- > 0) {
Copy(s, &anv, 1, NV);
+ DO_BO_UNPACK_N(anv, NV);
s += NVSIZE;
sv = NEWSV(48, 0);
sv_setnv(sv, anv);
if (checksum) {
while (len-- > 0) {
Copy(s, &aldouble, 1, long double);
+ DO_BO_UNPACK_N(aldouble, long double);
s += LONG_DOUBLESIZE;
cdouble += aldouble;
}
EXTEND_MORTAL(len);
while (len-- > 0) {
Copy(s, &aldouble, 1, long double);
+ DO_BO_UNPACK_N(aldouble, long double);
s += LONG_DOUBLESIZE;
sv = NEWSV(48, 0);
sv_setnv(sv, (NV)aldouble);
if (checksum) {
sv = NEWSV(42, 0);
- if (strchr("fFdD", datumtype) ||
+ if (strchr("fFdD", TYPE_NO_MODIFIERS(datumtype)) ||
(checksum > bits_in_uv &&
- strchr("csSiIlLnNUvVqQjJ", datumtype&0xFF)) ) {
+ strchr("csSiIlLnNUvVqQjJ", TYPE_NO_MODIFIERS(datumtype))) ) {
NV trouble;
adouble = (NV) (1 << (checksum & 15));
PP(pp_unpack)
{
dSP;
- SV *right = (MAXARG > 1) ? POPs : GvSV(PL_defgv);
- SV *left = POPs;
+ dPOPPOPssrl;
I32 gimme = GIMME_V;
STRLEN llen;
STRLEN rlen;
/* These must not be in registers: */
char achar;
- I16 ashort;
- int aint;
- unsigned int auint;
- I32 along;
- U32 aulong;
- IV aiv;
- UV auv;
- NV anv;
-#if defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE)
- long double aldouble;
-#endif
+ I16 ai16;
+ U16 au16;
+ I32 ai32;
+ U32 au32;
#ifdef HAS_QUAD
Quad_t aquad;
Uquad_t auquad;
#endif
+#if SHORTSIZE != SIZE16
+ short ashort;
+ unsigned short aushort;
+#endif
+ int aint;
+ unsigned int auint;
+#if LONGSIZE != SIZE32
+ long along;
+ unsigned long aulong;
+#endif
char *aptr;
float afloat;
double adouble;
+#if defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE)
+ long double aldouble;
+#endif
+ IV aiv;
+ UV auv;
+ NV anv;
+
int strrelbeg = SvCUR(cat);
tempsym_t lookahead;
len = symptr->length;
break;
case e_star:
- len = strchr("@Xxu", datumtype) ? 0 : items;
+ len = strchr("@Xxu", TYPE_NO_MODIFIERS(datumtype)) ? 0 : items;
break;
}
}
}
- switch(datumtype) {
+ switch(TYPE_NO_ENDIANNESS(datumtype)) {
default:
- Perl_croak(aTHX_ "Invalid type '%c' in pack", (int)datumtype);
+ Perl_croak(aTHX_ "Invalid type '%c' in pack", (int)TYPE_NO_MODIFIERS(datumtype));
case '%':
Perl_croak(aTHX_ "'%%' may not be used in pack");
case '@':
case 'c':
while (len-- > 0) {
fromstr = NEXTFROM;
- switch (datumtype) {
+ switch (TYPE_NO_MODIFIERS(datumtype)) {
case 'C':
aint = SvIV(fromstr);
if ((aint < 0 || aint > 255) &&
afloat = (float)SvNV(fromstr);
# endif
#endif
+ DO_BO_PACK_N(afloat, float);
sv_catpvn(cat, (char *)&afloat, sizeof (float));
}
break;
adouble = (double)SvNV(fromstr);
# endif
#endif
+ DO_BO_PACK_N(adouble, double);
sv_catpvn(cat, (char *)&adouble, sizeof (double));
}
break;
case 'F':
+ Zero(&anv, 1, NV); /* can be long double with unused bits */
while (len-- > 0) {
fromstr = NEXTFROM;
anv = SvNV(fromstr);
+ DO_BO_PACK_N(anv, NV);
sv_catpvn(cat, (char *)&anv, NVSIZE);
}
break;
#if defined(HAS_LONG_DOUBLE) && defined(USE_LONG_DOUBLE)
case 'D':
+ /* long doubles can have unused bits, which may be nonzero */
+ Zero(&aldouble, 1, long double);
while (len-- > 0) {
fromstr = NEXTFROM;
aldouble = (long double)SvNV(fromstr);
+ DO_BO_PACK_N(aldouble, long double);
sv_catpvn(cat, (char *)&aldouble, LONG_DOUBLESIZE);
}
break;
#endif
+ case 'n' | TYPE_IS_SHRIEKING:
case 'n':
while (len-- > 0) {
fromstr = NEXTFROM;
- ashort = (I16)SvIV(fromstr);
+ ai16 = (I16)SvIV(fromstr);
#ifdef HAS_HTONS
- ashort = PerlSock_htons(ashort);
+ ai16 = PerlSock_htons(ai16);
#endif
- CAT16(cat, &ashort);
+ CAT16(cat, &ai16);
}
break;
+ case 'v' | TYPE_IS_SHRIEKING:
case 'v':
while (len-- > 0) {
fromstr = NEXTFROM;
- ashort = (I16)SvIV(fromstr);
+ ai16 = (I16)SvIV(fromstr);
#ifdef HAS_HTOVS
- ashort = htovs(ashort);
+ ai16 = htovs(ai16);
#endif
- CAT16(cat, &ashort);
+ CAT16(cat, &ai16);
}
break;
case 'S' | TYPE_IS_SHRIEKING:
#if SHORTSIZE != SIZE16
{
- unsigned short aushort;
-
while (len-- > 0) {
fromstr = NEXTFROM;
aushort = SvUV(fromstr);
+ DO_BO_PACK(aushort, s);
sv_catpvn(cat, (char *)&aushort, sizeof(unsigned short));
}
}
#endif
case 'S':
{
- U16 aushort;
-
while (len-- > 0) {
fromstr = NEXTFROM;
- aushort = (U16)SvUV(fromstr);
- CAT16(cat, &aushort);
+ au16 = (U16)SvUV(fromstr);
+ DO_BO_PACK(au16, 16);
+ CAT16(cat, &au16);
}
}
case 's' | TYPE_IS_SHRIEKING:
#if SHORTSIZE != SIZE16
{
- short ashort;
-
while (len-- > 0) {
fromstr = NEXTFROM;
ashort = SvIV(fromstr);
+ DO_BO_PACK(ashort, s);
sv_catpvn(cat, (char *)&ashort, sizeof(short));
}
}
case 's':
while (len-- > 0) {
fromstr = NEXTFROM;
- ashort = (I16)SvIV(fromstr);
- CAT16(cat, &ashort);
+ ai16 = (I16)SvIV(fromstr);
+ DO_BO_PACK(ai16, 16);
+ CAT16(cat, &ai16);
}
break;
case 'I':
while (len-- > 0) {
fromstr = NEXTFROM;
auint = SvUV(fromstr);
+ DO_BO_PACK(auint, i);
sv_catpvn(cat, (char*)&auint, sizeof(unsigned int));
}
break;
while (len-- > 0) {
fromstr = NEXTFROM;
aiv = SvIV(fromstr);
+#if IVSIZE == INTSIZE
+ DO_BO_PACK(aiv, i);
+#elif IVSIZE == LONGSIZE
+ DO_BO_PACK(aiv, l);
+#elif defined(HAS_QUAD) && IVSIZE == U64SIZE
+ DO_BO_PACK(aiv, 64);
+#endif
sv_catpvn(cat, (char*)&aiv, IVSIZE);
}
break;
while (len-- > 0) {
fromstr = NEXTFROM;
auv = SvUV(fromstr);
+#if UVSIZE == INTSIZE
+ DO_BO_PACK(auv, i);
+#elif UVSIZE == LONGSIZE
+ DO_BO_PACK(auv, l);
+#elif defined(HAS_QUAD) && UVSIZE == U64SIZE
+ DO_BO_PACK(auv, 64);
+#endif
sv_catpvn(cat, (char*)&auv, UVSIZE);
}
break;
given 10**(NV_MAX_10_EXP+1) == 128 ** x solve for x:
x = (NV_MAX_10_EXP+1) * log (10) / log (128)
And with that many bytes only Inf can overflow.
+ Some C compilers are strict about integral constant
+ expressions so we conservatively divide by a slightly
+ smaller integer instead of multiplying by the exact
+ floating-point value.
*/
#ifdef NV_MAX_10_EXP
- char buf[1 + (int)((NV_MAX_10_EXP + 1) * 0.47456)];
+/* char buf[1 + (int)((NV_MAX_10_EXP + 1) * 0.47456)]; -- invalid C */
+ char buf[1 + (int)((NV_MAX_10_EXP + 1) / 2)]; /* valid C */
#else
- char buf[1 + (int)((308 + 1) * 0.47456)];
+/* char buf[1 + (int)((308 + 1) * 0.47456)]; -- invalid C */
+ char buf[1 + (int)((308 + 1) / 2)]; /* valid C */
#endif
char *in = buf + sizeof(buf);
while (len-- > 0) {
fromstr = NEXTFROM;
aint = SvIV(fromstr);
+ DO_BO_PACK(aint, i);
sv_catpvn(cat, (char*)&aint, sizeof(int));
}
break;
+ case 'N' | TYPE_IS_SHRIEKING:
case 'N':
while (len-- > 0) {
fromstr = NEXTFROM;
- aulong = SvUV(fromstr);
+ au32 = SvUV(fromstr);
#ifdef HAS_HTONL
- aulong = PerlSock_htonl(aulong);
+ au32 = PerlSock_htonl(au32);
#endif
- CAT32(cat, &aulong);
+ CAT32(cat, &au32);
}
break;
+ case 'V' | TYPE_IS_SHRIEKING:
case 'V':
while (len-- > 0) {
fromstr = NEXTFROM;
- aulong = SvUV(fromstr);
+ au32 = SvUV(fromstr);
#ifdef HAS_HTOVL
- aulong = htovl(aulong);
+ au32 = htovl(au32);
#endif
- CAT32(cat, &aulong);
+ CAT32(cat, &au32);
}
break;
case 'L' | TYPE_IS_SHRIEKING:
#if LONGSIZE != SIZE32
{
- unsigned long aulong;
-
while (len-- > 0) {
fromstr = NEXTFROM;
aulong = SvUV(fromstr);
+ DO_BO_PACK(aulong, l);
sv_catpvn(cat, (char *)&aulong, sizeof(unsigned long));
}
}
{
while (len-- > 0) {
fromstr = NEXTFROM;
- aulong = SvUV(fromstr);
- CAT32(cat, &aulong);
+ au32 = SvUV(fromstr);
+ DO_BO_PACK(au32, 32);
+ CAT32(cat, &au32);
}
}
break;
case 'l' | TYPE_IS_SHRIEKING:
#if LONGSIZE != SIZE32
{
- long along;
-
while (len-- > 0) {
fromstr = NEXTFROM;
along = SvIV(fromstr);
+ DO_BO_PACK(along, l);
sv_catpvn(cat, (char *)&along, sizeof(long));
}
}
case 'l':
while (len-- > 0) {
fromstr = NEXTFROM;
- along = SvIV(fromstr);
- CAT32(cat, &along);
+ ai32 = SvIV(fromstr);
+ DO_BO_PACK(ai32, 32);
+ CAT32(cat, &ai32);
}
break;
#ifdef HAS_QUAD
while (len-- > 0) {
fromstr = NEXTFROM;
auquad = (Uquad_t)SvUV(fromstr);
+ DO_BO_PACK(auquad, 64);
sv_catpvn(cat, (char*)&auquad, sizeof(Uquad_t));
}
break;
while (len-- > 0) {
fromstr = NEXTFROM;
aquad = (Quad_t)SvIV(fromstr);
+ DO_BO_PACK(aquad, 64);
sv_catpvn(cat, (char*)&aquad, sizeof(Quad_t));
}
break;
else
aptr = SvPV_force(fromstr,n_a);
}
+ DO_BO_PACK_P(aptr);
sv_catpvn(cat, (char*)&aptr, sizeof(char*));
}
break;
projects / p5sagit/p5-mst-13.2.git / blobdiff