3 * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1999, 2000,
4 * 2001, 2002, 2004, 2005, 2006, 2007, 2008 by Larry Wall and others
6 * You may distribute under the terms of either the GNU General Public
7 * License or the Artistic License, as specified in the README file.
11 #if !defined(__STDC__)
23 # define Null(type) ((type)NULL)
28 =for apidoc AmU||Nullch
29 Null character pointer. (No longer available when C<PERL_CORE> is defined.)
31 =for apidoc AmU||Nullsv
32 Null SV pointer. (No longer available when C<PERL_CORE> is defined.)
37 # define Nullch Null(char*)
38 # define Nullfp Null(PerlIO*)
39 # define Nullsv Null(SV*)
51 /* The MUTABLE_*() macros cast pointers to the types shown, in such a way
52 * (compiler permitting) that casting away const-ness will give a warning;
56 * AV *av1 = (AV*)sv; <== BAD: the const has been silently cast away
57 * AV *av2 = MUTABLE_AV(sv); <== GOOD: it may warn
60 #if defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN)
61 # define MUTABLE_PTR(p) ({ void *_p = (p); _p; })
63 # define MUTABLE_PTR(p) ((void *) (p))
66 #define MUTABLE_AV(p) ((AV *)MUTABLE_PTR(p))
67 #define MUTABLE_CV(p) ((CV *)MUTABLE_PTR(p))
68 #define MUTABLE_GV(p) ((GV *)MUTABLE_PTR(p))
69 #define MUTABLE_HV(p) ((HV *)MUTABLE_PTR(p))
70 #define MUTABLE_IO(p) ((IO *)MUTABLE_PTR(p))
71 #define MUTABLE_SV(p) ((SV *)MUTABLE_PTR(p))
73 /* XXX Configure ought to have a test for a boolean type, if I can
74 just figure out all the headers such a test needs.
75 Andy Dougherty August 1996
77 /* bool is built-in for g++-2.6.3 and later, which might be used
78 for extensions. <_G_config.h> defines _G_HAVE_BOOL, but we can't
79 be sure _G_config.h will be included before this file. _G_config.h
80 also defines _G_HAVE_BOOL for both gcc and g++, but only g++
81 actually has bool. Hence, _G_HAVE_BOOL is pretty useless for us.
82 g++ can be identified by __GNUG__.
83 Andy Dougherty February 2000
85 #ifdef __GNUG__ /* GNU g++ has bool built-in */
91 /* The NeXT dynamic loader headers will not build with the bool macro
92 So declare them now to clear confusion.
94 #if defined(NeXT) || defined(__NeXT__)
97 typedef enum bool { FALSE = 0, TRUE = 1 } bool;
101 # endif /* !HAS_BOOL */
102 #endif /* NeXT || __NeXT__ */
105 # if defined(UTS) || defined(VMS)
113 /* Try to figure out __func__ or __FUNCTION__ equivalent, if any.
114 * XXX Should really be a Configure probe, with HAS__FUNCTION__
115 * and FUNCTION__ as results.
116 * XXX Similarly, a Configure probe for __FILE__ and __LINE__ is needed. */
117 #if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || (defined(__SUNPRO_C)) /* C99 or close enough. */
118 # define FUNCTION__ __func__
120 # if (defined(_MSC_VER) && _MSC_VER < 1300) || /* Pre-MSVC 7.0 has neither __func__ nor __FUNCTION and no good workarounds, either. */ \
121 (defined(__DECC_VER)) /* Tru64 or VMS, and strict C89 being used, but not modern enough cc (in Tur64, -c99 not known, only -std1). */
122 # define FUNCTION__ ""
124 # define FUNCTION__ __FUNCTION__ /* Common extension. */
128 /* XXX A note on the perl source internal type system. The
129 original intent was that I32 be *exactly* 32 bits.
131 Currently, we only guarantee that I32 is *at least* 32 bits.
132 Specifically, if int is 64 bits, then so is I32. (This is the case
133 for the Cray.) This has the advantage of meshing nicely with
134 standard library calls (where we pass an I32 and the library is
135 expecting an int), but the disadvantage that an I32 is not 32 bits.
136 Andy Dougherty August 1996
138 There is no guarantee that there is *any* integral type with
139 exactly 32 bits. It is perfectly legal for a system to have
140 sizeof(short) == sizeof(int) == sizeof(long) == 8.
142 Similarly, there is no guarantee that I16 and U16 have exactly 16
145 For dealing with issues that may arise from various 32/64-bit
146 systems, we will ask Configure to check out
148 SHORTSIZE == sizeof(short)
149 INTSIZE == sizeof(int)
150 LONGSIZE == sizeof(long)
151 LONGLONGSIZE == sizeof(long long) (if HAS_LONG_LONG)
152 PTRSIZE == sizeof(void *)
153 DOUBLESIZE == sizeof(double)
154 LONG_DOUBLESIZE == sizeof(long double) (if HAS_LONG_DOUBLE).
158 #ifdef I_INTTYPES /* e.g. Linux has int64_t without <inttypes.h> */
159 # include <inttypes.h>
160 # ifdef INT32_MIN_BROKEN
162 # define INT32_MIN (-2147483647-1)
164 # ifdef INT64_MIN_BROKEN
166 # define INT64_MIN (-9223372036854775807LL-1)
181 #endif /* PERL_CORE */
183 #if defined(HAS_QUAD) && defined(USE_64_BIT_INT)
184 # ifndef UINT64_C /* usually from <inttypes.h> */
185 # if defined(HAS_LONG_LONG) && QUADKIND == QUAD_IS_LONG_LONG
186 # define INT64_C(c) CAT2(c,LL)
187 # define UINT64_C(c) CAT2(c,ULL)
189 # if LONGSIZE == 8 && QUADKIND == QUAD_IS_LONG
190 # define INT64_C(c) CAT2(c,L)
191 # define UINT64_C(c) CAT2(c,UL)
193 # if defined(_WIN64) && defined(_MSC_VER)
194 # define INT64_C(c) CAT2(c,I64)
195 # define UINT64_C(c) CAT2(c,UI64)
197 # define INT64_C(c) ((I64TYPE)(c))
198 # define UINT64_C(c) ((U64TYPE)(c))
205 /* HMB H.Merijn Brand - a placeholder for preparing Configure patches:
207 * USE_DTRACE HAS_PSEUDOFORK HAS_TIMEGM LOCALTIME_R_NEEDS_TZSET
208 * GMTIME_MAX GMTIME_MIN LOCALTIME_MAX LOCALTIME_MIN
209 * HAS_CTIME64 HAS_LOCALTIME64 HAS_GMTIME64 HAS_DIFFTIME64
210 * HAS_MKTIME64 HAS_ASCTIME64 HAS_GETADDRINFO HAS_GETNAMEINFO
211 * HAS_INETNTOP HAS_INETPTON
212 * Not (yet) used at top level, but mention them for metaconfig
215 /* Mention I8SIZE, U8SIZE, I16SIZE, U16SIZE, I32SIZE, U32SIZE,
216 I64SIZE, and U64SIZE here so that metaconfig pulls them in. */
218 #if defined(UINT8_MAX) && defined(INT16_MAX) && defined(INT32_MAX)
220 /* I8_MAX and I8_MIN constants are not defined, as I8 is an ambiguous type.
221 Please search CHAR_MAX in perl.h for further details. */
222 #define U8_MAX UINT8_MAX
223 #define U8_MIN UINT8_MIN
225 #define I16_MAX INT16_MAX
226 #define I16_MIN INT16_MIN
227 #define U16_MAX UINT16_MAX
228 #define U16_MIN UINT16_MIN
230 #define I32_MAX INT32_MAX
231 #define I32_MIN INT32_MIN
232 #ifndef UINT32_MAX_BROKEN /* e.g. HP-UX with gcc messes this up */
233 # define U32_MAX UINT32_MAX
235 # define U32_MAX 4294967295U
237 #define U32_MIN UINT32_MIN
241 /* I8_MAX and I8_MIN constants are not defined, as I8 is an ambiguous type.
242 Please search CHAR_MAX in perl.h for further details. */
243 #define U8_MAX PERL_UCHAR_MAX
244 #define U8_MIN PERL_UCHAR_MIN
246 #define I16_MAX PERL_SHORT_MAX
247 #define I16_MIN PERL_SHORT_MIN
248 #define U16_MAX PERL_USHORT_MAX
249 #define U16_MIN PERL_USHORT_MIN
252 # define I32_MAX PERL_INT_MAX
253 # define I32_MIN PERL_INT_MIN
254 # define U32_MAX PERL_UINT_MAX
255 # define U32_MIN PERL_UINT_MIN
257 # define I32_MAX PERL_LONG_MAX
258 # define I32_MIN PERL_LONG_MIN
259 # define U32_MAX PERL_ULONG_MAX
260 # define U32_MIN PERL_ULONG_MIN
265 /* log(2) is pretty close to 0.30103, just in case anyone is grepping for it */
266 #define BIT_DIGITS(N) (((N)*146)/485 + 1) /* log2(10) =~ 146/485 */
267 #define TYPE_DIGITS(T) BIT_DIGITS(sizeof(T) * 8)
268 #define TYPE_CHARS(T) (TYPE_DIGITS(T) + 2) /* sign, NUL */
270 #define Ctl(ch) ((ch) & 037)
273 =head1 SV-Body Allocation
275 =for apidoc Ama|SV*|newSVpvs|const char* s
276 Like C<newSVpvn>, but takes a literal string instead of a string/length pair.
278 =for apidoc Ama|SV*|newSVpvs_flags|const char* s|U32 flags
279 Like C<newSVpvn_flags>, but takes a literal string instead of a string/length
282 =for apidoc Ama|SV*|newSVpvs_share|const char* s
283 Like C<newSVpvn_share>, but takes a literal string instead of a string/length
284 pair and omits the hash parameter.
286 =for apidoc Am|void|sv_catpvs|SV* sv|const char* s
287 Like C<sv_catpvn>, but takes a literal string instead of a string/length pair.
289 =for apidoc Am|void|sv_setpvs|SV* sv|const char* s
290 Like C<sv_setpvn>, but takes a literal string instead of a string/length pair.
292 =head1 Memory Management
294 =for apidoc Ama|char*|savepvs|const char* s
295 Like C<savepvn>, but takes a literal string instead of a string/length pair.
299 =for apidoc Am|HV*|gv_stashpvs|const char* name|I32 create
300 Like C<gv_stashpvn>, but takes a literal string instead of a string/length pair.
302 =head1 Hash Manipulation Functions
304 =for apidoc Am|SV**|hv_fetchs|HV* tb|const char* key|I32 lval
305 Like C<hv_fetch>, but takes a literal string instead of a string/length pair.
307 =for apidoc Am|SV**|hv_stores|HV* tb|const char* key|NULLOK SV* val
308 Like C<hv_store>, but takes a literal string instead of a string/length pair
309 and omits the hash parameter.
314 /* concatenating with "" ensures that only literal strings are accepted as argument */
315 #define STR_WITH_LEN(s) ("" s ""), (sizeof(s)-1)
317 /* note that STR_WITH_LEN() can't be used as argument to macros or functions that
318 * under some configurations might be macros, which means that it requires the full
319 * Perl_xxx(aTHX_ ...) form for any API calls where it's used.
322 /* STR_WITH_LEN() shortcuts */
323 #define newSVpvs(str) Perl_newSVpvn(aTHX_ STR_WITH_LEN(str))
324 #define newSVpvs_flags(str,flags) \
325 Perl_newSVpvn_flags(aTHX_ STR_WITH_LEN(str), flags)
326 #define newSVpvs_share(str) Perl_newSVpvn_share(aTHX_ STR_WITH_LEN(str), 0)
327 #define sv_catpvs(sv, str) Perl_sv_catpvn_flags(aTHX_ sv, STR_WITH_LEN(str), SV_GMAGIC)
328 #define sv_setpvs(sv, str) Perl_sv_setpvn(aTHX_ sv, STR_WITH_LEN(str))
329 #define savepvs(str) Perl_savepvn(aTHX_ STR_WITH_LEN(str))
330 #define gv_stashpvs(str, create) Perl_gv_stashpvn(aTHX_ STR_WITH_LEN(str), create)
331 #define gv_fetchpvs(namebeg, add, sv_type) Perl_gv_fetchpvn_flags(aTHX_ STR_WITH_LEN(namebeg), add, sv_type)
332 #define hv_fetchs(hv,key,lval) \
333 ((SV **)Perl_hv_common(aTHX_ (hv), NULL, STR_WITH_LEN(key), 0, \
334 (lval) ? (HV_FETCH_JUST_SV | HV_FETCH_LVALUE) \
335 : HV_FETCH_JUST_SV, NULL, 0))
337 #define hv_stores(hv,key,val) \
338 ((SV **)Perl_hv_common(aTHX_ (hv), NULL, STR_WITH_LEN(key), 0, \
339 (HV_FETCH_ISSTORE|HV_FETCH_JUST_SV), (val), 0))
341 #define get_cvs(str, flags) \
342 Perl_get_cvn_flags(aTHX_ STR_WITH_LEN(str), (flags))
345 =head1 Miscellaneous Functions
347 =for apidoc Am|bool|strNE|char* s1|char* s2
348 Test two strings to see if they are different. Returns true or
351 =for apidoc Am|bool|strEQ|char* s1|char* s2
352 Test two strings to see if they are equal. Returns true or false.
354 =for apidoc Am|bool|strLT|char* s1|char* s2
355 Test two strings to see if the first, C<s1>, is less than the second,
356 C<s2>. Returns true or false.
358 =for apidoc Am|bool|strLE|char* s1|char* s2
359 Test two strings to see if the first, C<s1>, is less than or equal to the
360 second, C<s2>. Returns true or false.
362 =for apidoc Am|bool|strGT|char* s1|char* s2
363 Test two strings to see if the first, C<s1>, is greater than the second,
364 C<s2>. Returns true or false.
366 =for apidoc Am|bool|strGE|char* s1|char* s2
367 Test two strings to see if the first, C<s1>, is greater than or equal to
368 the second, C<s2>. Returns true or false.
370 =for apidoc Am|bool|strnNE|char* s1|char* s2|STRLEN len
371 Test two strings to see if they are different. The C<len> parameter
372 indicates the number of bytes to compare. Returns true or false. (A
373 wrapper for C<strncmp>).
375 =for apidoc Am|bool|strnEQ|char* s1|char* s2|STRLEN len
376 Test two strings to see if they are equal. The C<len> parameter indicates
377 the number of bytes to compare. Returns true or false. (A wrapper for
383 #define strNE(s1,s2) (strcmp(s1,s2))
384 #define strEQ(s1,s2) (!strcmp(s1,s2))
385 #define strLT(s1,s2) (strcmp(s1,s2) < 0)
386 #define strLE(s1,s2) (strcmp(s1,s2) <= 0)
387 #define strGT(s1,s2) (strcmp(s1,s2) > 0)
388 #define strGE(s1,s2) (strcmp(s1,s2) >= 0)
389 #define strnNE(s1,s2,l) (strncmp(s1,s2,l))
390 #define strnEQ(s1,s2,l) (!strncmp(s1,s2,l))
393 # define memNE(s1,s2,l) (memcmp(s1,s2,l))
394 # define memEQ(s1,s2,l) (!memcmp(s1,s2,l))
396 # define memNE(s1,s2,l) (bcmp(s1,s2,l))
397 # define memEQ(s1,s2,l) (!bcmp(s1,s2,l))
400 #define memEQs(s1, l, s2) \
401 (sizeof(s2)-1 == l && memEQ(s1, (s2 ""), (sizeof(s2)-1)))
402 #define memNEs(s1, l, s2) !memEQs(s1, l, s2)
407 * Unfortunately, the introduction of locales means that we
408 * can't trust isupper(), etc. to tell the truth. And when
409 * it comes to /\w+/ with tainting enabled, we *must* be able
410 * to trust our character classes.
412 * Therefore, the default tests in the text of Perl will be
413 * independent of locale. Any code that wants to depend on
414 * the current locale will use the tests that begin with "lc".
417 #ifdef HAS_SETLOCALE /* XXX Is there a better test for this? */
425 =head1 Character classes
427 =for apidoc Am|bool|isALNUM|char ch
428 Returns a boolean indicating whether the C C<char> is a US-ASCII (Basic Latin)
429 alphanumeric character (including underscore) or digit.
431 =for apidoc Am|bool|isALPHA|char ch
432 Returns a boolean indicating whether the C C<char> is a US-ASCII (Basic Latin)
433 alphabetic character.
435 =for apidoc Am|bool|isSPACE|char ch
436 Returns a boolean indicating whether the C C<char> is a US-ASCII (Basic Latin)
439 =for apidoc Am|bool|isDIGIT|char ch
440 Returns a boolean indicating whether the C C<char> is a US-ASCII (Basic Latin)
443 =for apidoc Am|bool|isUPPER|char ch
444 Returns a boolean indicating whether the C C<char> is a US-ASCII (Basic Latin)
447 =for apidoc Am|bool|isLOWER|char ch
448 Returns a boolean indicating whether the C C<char> is a US-ASCII (Basic Latin)
451 =for apidoc Am|char|toUPPER|char ch
452 Converts the specified character to uppercase. Characters outside the
453 US-ASCII (Basic Latin) range are viewed as not having any case.
455 =for apidoc Am|char|toLOWER|char ch
456 Converts the specified character to lowercase. Characters outside the
457 US-ASCII (Basic Latin) range are viewed as not having any case.
462 #define isALNUM(c) (isALPHA(c) || isDIGIT(c) || (c) == '_')
463 #define isIDFIRST(c) (isALPHA(c) || (c) == '_')
464 #define isALPHA(c) (isUPPER(c) || isLOWER(c))
466 ((c) == ' ' || (c) == '\t' || (c) == '\n' || (c) =='\r' || (c) == '\f')
467 #define isPSXSPC(c) (isSPACE(c) || (c) == '\v')
468 #define isBLANK(c) ((c) == ' ' || (c) == '\t')
469 #define isDIGIT(c) ((c) >= '0' && (c) <= '9')
471 /* In EBCDIC we do not do locales: therefore() isupper() is fine. */
472 # define isUPPER(c) isupper(c)
473 # define isLOWER(c) islower(c)
474 # define isALNUMC(c) isalnum(c)
475 # define isASCII(c) isascii(c)
476 # define isCNTRL(c) iscntrl(c)
477 # define isGRAPH(c) isgraph(c)
478 # define isPRINT(c) isprint(c)
479 # define isPUNCT(c) ispunct(c)
480 # define isXDIGIT(c) isxdigit(c)
481 # define toUPPER(c) toupper(c)
482 # define toUPPER_LATIN1_MOD(c) UNI_TO_NATIVE(PL_mod_latin1_uc[(U8) NATIVE_TO_UNI(c)])
483 # define toLOWER(c) tolower(c)
484 # define toLOWER_LATIN1(c) UNI_TO_NATIVE(PL_latin1_lc[(U8) NATIVE_TO_UNI(c)])
486 # define isUPPER(c) ((c) >= 'A' && (c) <= 'Z')
487 # define isLOWER(c) ((c) >= 'a' && (c) <= 'z')
488 # define isALNUMC(c) (isALPHA(c) || isDIGIT(c))
489 # define isASCII(c) ((c) <= 127)
490 # define isCNTRL(c) ((c) < ' ' || (c) == 127)
491 # define isGRAPH(c) (isALNUM(c) || isPUNCT(c))
492 # define isPRINT(c) (((c) >= 32 && (c) < 127))
493 # define isPUNCT(c) (((c) >= 33 && (c) <= 47) || ((c) >= 58 && (c) <= 64) || ((c) >= 91 && (c) <= 96) || ((c) >= 123 && (c) <= 126))
494 # define isXDIGIT(c) (isDIGIT(c) || ((c) >= 'a' && (c) <= 'f') || ((c) >= 'A' && (c) <= 'F'))
496 /* Use table lookup for speed */
497 # define toLOWER_LATIN1(c) (PL_latin1_lc[(U8) c])
499 /* Modified uc. Is correct uc except for three non-ascii chars which are
500 * all mapped to one of them, and these need special handling */
501 # define toUPPER_LATIN1_MOD(c) (PL_mod_latin1_uc[(U8) c])
504 # define toUPPER(c) (isLOWER(c) ? (c) - ('a' - 'A') : (c))
505 # define toLOWER(c) (isUPPER(c) ? (c) + ('a' - 'A') : (c))
508 #ifdef USE_NEXT_CTYPE
510 # define isALNUM_LC(c) \
511 (NXIsAlNum((unsigned int)(c)) || (char)(c) == '_')
512 # define isIDFIRST_LC(c) \
513 (NXIsAlpha((unsigned int)(c)) || (char)(c) == '_')
514 # define isALPHA_LC(c) NXIsAlpha((unsigned int)(c))
515 # define isSPACE_LC(c) NXIsSpace((unsigned int)(c))
516 # define isDIGIT_LC(c) NXIsDigit((unsigned int)(c))
517 # define isUPPER_LC(c) NXIsUpper((unsigned int)(c))
518 # define isLOWER_LC(c) NXIsLower((unsigned int)(c))
519 # define isALNUMC_LC(c) NXIsAlNum((unsigned int)(c))
520 # define isCNTRL_LC(c) NXIsCntrl((unsigned int)(c))
521 # define isGRAPH_LC(c) NXIsGraph((unsigned int)(c))
522 # define isPRINT_LC(c) NXIsPrint((unsigned int)(c))
523 # define isPUNCT_LC(c) NXIsPunct((unsigned int)(c))
524 # define toUPPER_LC(c) NXToUpper((unsigned int)(c))
525 # define toLOWER_LC(c) NXToLower((unsigned int)(c))
527 #else /* !USE_NEXT_CTYPE */
529 # if defined(CTYPE256) || (!defined(isascii) && !defined(HAS_ISASCII))
531 # define isALNUM_LC(c) (isalnum((unsigned char)(c)) || (char)(c) == '_')
532 # define isIDFIRST_LC(c) (isalpha((unsigned char)(c)) || (char)(c) == '_')
533 # define isALPHA_LC(c) isalpha((unsigned char)(c))
534 # define isSPACE_LC(c) isspace((unsigned char)(c))
535 # define isDIGIT_LC(c) isdigit((unsigned char)(c))
536 # define isUPPER_LC(c) isupper((unsigned char)(c))
537 # define isLOWER_LC(c) islower((unsigned char)(c))
538 # define isALNUMC_LC(c) isalnum((unsigned char)(c))
539 # define isCNTRL_LC(c) iscntrl((unsigned char)(c))
540 # define isGRAPH_LC(c) isgraph((unsigned char)(c))
541 # define isPRINT_LC(c) isprint((unsigned char)(c))
542 # define isPUNCT_LC(c) ispunct((unsigned char)(c))
543 # define toUPPER_LC(c) toupper((unsigned char)(c))
544 # define toLOWER_LC(c) tolower((unsigned char)(c))
548 # define isALNUM_LC(c) (isascii(c) && (isalnum(c) || (c) == '_'))
549 # define isIDFIRST_LC(c) (isascii(c) && (isalpha(c) || (c) == '_'))
550 # define isALPHA_LC(c) (isascii(c) && isalpha(c))
551 # define isSPACE_LC(c) (isascii(c) && isspace(c))
552 # define isDIGIT_LC(c) (isascii(c) && isdigit(c))
553 # define isUPPER_LC(c) (isascii(c) && isupper(c))
554 # define isLOWER_LC(c) (isascii(c) && islower(c))
555 # define isALNUMC_LC(c) (isascii(c) && isalnum(c))
556 # define isCNTRL_LC(c) (isascii(c) && iscntrl(c))
557 # define isGRAPH_LC(c) (isascii(c) && isgraph(c))
558 # define isPRINT_LC(c) (isascii(c) && isprint(c))
559 # define isPUNCT_LC(c) (isascii(c) && ispunct(c))
560 # define toUPPER_LC(c) toupper(c)
561 # define toLOWER_LC(c) tolower(c)
564 #endif /* USE_NEXT_CTYPE */
566 #define isPSXSPC_LC(c) (isSPACE_LC(c) || (c) == '\v')
567 #define isBLANK_LC(c) isBLANK(c) /* could be wrong */
569 #define isALNUM_uni(c) is_uni_alnum(c)
570 #define isIDFIRST_uni(c) is_uni_idfirst(c)
571 #define isALPHA_uni(c) is_uni_alpha(c)
572 #define isSPACE_uni(c) is_uni_space(c)
573 #define isDIGIT_uni(c) is_uni_digit(c)
574 #define isUPPER_uni(c) is_uni_upper(c)
575 #define isLOWER_uni(c) is_uni_lower(c)
576 #define isASCII_uni(c) is_uni_ascii(c)
577 #define isCNTRL_uni(c) is_uni_cntrl(c)
578 #define isGRAPH_uni(c) is_uni_graph(c)
579 #define isPRINT_uni(c) is_uni_print(c)
580 #define isPUNCT_uni(c) is_uni_punct(c)
581 #define isXDIGIT_uni(c) is_uni_xdigit(c)
582 #define toUPPER_uni(c,s,l) to_uni_upper(c,s,l)
583 #define toTITLE_uni(c,s,l) to_uni_title(c,s,l)
584 #define toLOWER_uni(c,s,l) to_uni_lower(c,s,l)
585 #define toFOLD_uni(c,s,l) to_uni_fold(c,s,l)
587 #define isPSXSPC_uni(c) (isSPACE_uni(c) ||(c) == '\f')
588 #define isBLANK_uni(c) isBLANK(c) /* could be wrong */
590 #define isALNUM_LC_uvchr(c) (c < 256 ? isALNUM_LC(c) : is_uni_alnum_lc(c))
591 #define isIDFIRST_LC_uvchr(c) (c < 256 ? isIDFIRST_LC(c) : is_uni_idfirst_lc(c))
592 #define isALPHA_LC_uvchr(c) (c < 256 ? isALPHA_LC(c) : is_uni_alpha_lc(c))
593 #define isSPACE_LC_uvchr(c) (c < 256 ? isSPACE_LC(c) : is_uni_space_lc(c))
594 #define isDIGIT_LC_uvchr(c) (c < 256 ? isDIGIT_LC(c) : is_uni_digit_lc(c))
595 #define isUPPER_LC_uvchr(c) (c < 256 ? isUPPER_LC(c) : is_uni_upper_lc(c))
596 #define isLOWER_LC_uvchr(c) (c < 256 ? isLOWER_LC(c) : is_uni_lower_lc(c))
597 #define isCNTRL_LC_uvchr(c) (c < 256 ? isCNTRL_LC(c) : is_uni_cntrl_lc(c))
598 #define isGRAPH_LC_uvchr(c) (c < 256 ? isGRAPH_LC(c) : is_uni_graph_lc(c))
599 #define isPRINT_LC_uvchr(c) (c < 256 ? isPRINT_LC(c) : is_uni_print_lc(c))
600 #define isPUNCT_LC_uvchr(c) (c < 256 ? isPUNCT_LC(c) : is_uni_punct_lc(c))
602 #define isPSXSPC_LC_uni(c) (isSPACE_LC_uni(c) ||(c) == '\f')
603 #define isBLANK_LC_uni(c) isBLANK(c) /* could be wrong */
605 #define isALNUM_utf8(p) is_utf8_alnum(p)
606 /* The ID_Start of Unicode is quite limiting: it assumes a L-class
607 * character (meaning that you cannot have, say, a CJK character).
608 * Instead, let's allow ID_Continue but not digits. */
609 #define isIDFIRST_utf8(p) (is_utf8_idcont(p) && !is_utf8_digit(p))
610 #define isALPHA_utf8(p) is_utf8_alpha(p)
611 #define isSPACE_utf8(p) is_utf8_space(p)
612 #define isDIGIT_utf8(p) is_utf8_digit(p)
613 #define isUPPER_utf8(p) is_utf8_upper(p)
614 #define isLOWER_utf8(p) is_utf8_lower(p)
615 #define isASCII_utf8(p) is_utf8_ascii(p)
616 #define isCNTRL_utf8(p) is_utf8_cntrl(p)
617 #define isGRAPH_utf8(p) is_utf8_graph(p)
618 #define isPRINT_utf8(p) is_utf8_print(p)
619 #define isPUNCT_utf8(p) is_utf8_punct(p)
620 #define isXDIGIT_utf8(p) is_utf8_xdigit(p)
621 #define toUPPER_utf8(p,s,l) to_utf8_upper(p,s,l)
622 #define toTITLE_utf8(p,s,l) to_utf8_title(p,s,l)
623 #define toLOWER_utf8(p,s,l) to_utf8_lower(p,s,l)
625 #define isPSXSPC_utf8(c) (isSPACE_utf8(c) ||(c) == '\f')
626 #define isBLANK_utf8(c) isBLANK(c) /* could be wrong */
628 #define isALNUM_LC_utf8(p) isALNUM_LC_uvchr(utf8_to_uvchr(p, 0))
629 #define isIDFIRST_LC_utf8(p) isIDFIRST_LC_uvchr(utf8_to_uvchr(p, 0))
630 #define isALPHA_LC_utf8(p) isALPHA_LC_uvchr(utf8_to_uvchr(p, 0))
631 #define isSPACE_LC_utf8(p) isSPACE_LC_uvchr(utf8_to_uvchr(p, 0))
632 #define isDIGIT_LC_utf8(p) isDIGIT_LC_uvchr(utf8_to_uvchr(p, 0))
633 #define isUPPER_LC_utf8(p) isUPPER_LC_uvchr(utf8_to_uvchr(p, 0))
634 #define isLOWER_LC_utf8(p) isLOWER_LC_uvchr(utf8_to_uvchr(p, 0))
635 #define isALNUMC_LC_utf8(p) isALNUMC_LC_uvchr(utf8_to_uvchr(p, 0))
636 #define isCNTRL_LC_utf8(p) isCNTRL_LC_uvchr(utf8_to_uvchr(p, 0))
637 #define isGRAPH_LC_utf8(p) isGRAPH_LC_uvchr(utf8_to_uvchr(p, 0))
638 #define isPRINT_LC_utf8(p) isPRINT_LC_uvchr(utf8_to_uvchr(p, 0))
639 #define isPUNCT_LC_utf8(p) isPUNCT_LC_uvchr(utf8_to_uvchr(p, 0))
641 #define isPSXSPC_LC_utf8(c) (isSPACE_LC_utf8(c) ||(c) == '\f')
642 #define isBLANK_LC_utf8(c) isBLANK(c) /* could be wrong */
645 # ifdef PERL_IMPLICIT_CONTEXT
646 # define toCTRL(c) Perl_ebcdic_control(aTHX_ c)
648 # define toCTRL Perl_ebcdic_control
651 /* This conversion works both ways, strangely enough. */
652 # define toCTRL(c) (toUPPER(c) ^ 64)
655 /* Line numbers are unsigned, 32 bits. */
657 #define NOLINE ((line_t) 4294967295UL)
661 =head1 Memory Management
663 =for apidoc Am|void|Newx|void* ptr|int nitems|type
664 The XSUB-writer's interface to the C C<malloc> function.
666 In 5.9.3, Newx() and friends replace the older New() API, and drops
667 the first parameter, I<x>, a debug aid which allowed callers to identify
668 themselves. This aid has been superseded by a new build option,
669 PERL_MEM_LOG (see L<perlhack/PERL_MEM_LOG>). The older API is still
670 there for use in XS modules supporting older perls.
672 =for apidoc Am|void|Newxc|void* ptr|int nitems|type|cast
673 The XSUB-writer's interface to the C C<malloc> function, with
674 cast. See also C<Newx>.
676 =for apidoc Am|void|Newxz|void* ptr|int nitems|type
677 The XSUB-writer's interface to the C C<malloc> function. The allocated
678 memory is zeroed with C<memzero>. See also C<Newx>.
680 =for apidoc Am|void|Renew|void* ptr|int nitems|type
681 The XSUB-writer's interface to the C C<realloc> function.
683 =for apidoc Am|void|Renewc|void* ptr|int nitems|type|cast
684 The XSUB-writer's interface to the C C<realloc> function, with
687 =for apidoc Am|void|Safefree|void* ptr
688 The XSUB-writer's interface to the C C<free> function.
690 =for apidoc Am|void|Move|void* src|void* dest|int nitems|type
691 The XSUB-writer's interface to the C C<memmove> function. The C<src> is the
692 source, C<dest> is the destination, C<nitems> is the number of items, and C<type> is
693 the type. Can do overlapping moves. See also C<Copy>.
695 =for apidoc Am|void *|MoveD|void* src|void* dest|int nitems|type
696 Like C<Move> but returns dest. Useful for encouraging compilers to tail-call
699 =for apidoc Am|void|Copy|void* src|void* dest|int nitems|type
700 The XSUB-writer's interface to the C C<memcpy> function. The C<src> is the
701 source, C<dest> is the destination, C<nitems> is the number of items, and C<type> is
702 the type. May fail on overlapping copies. See also C<Move>.
704 =for apidoc Am|void *|CopyD|void* src|void* dest|int nitems|type
706 Like C<Copy> but returns dest. Useful for encouraging compilers to tail-call
709 =for apidoc Am|void|Zero|void* dest|int nitems|type
711 The XSUB-writer's interface to the C C<memzero> function. The C<dest> is the
712 destination, C<nitems> is the number of items, and C<type> is the type.
714 =for apidoc Am|void *|ZeroD|void* dest|int nitems|type
716 Like C<Zero> but returns dest. Useful for encouraging compilers to tail-call
719 =for apidoc Am|void|StructCopy|type src|type dest|type
720 This is an architecture-independent macro to copy one structure to another.
722 =for apidoc Am|void|PoisonWith|void* dest|int nitems|type|U8 byte
724 Fill up memory with a byte pattern (a byte repeated over and over
725 again) that hopefully catches attempts to access uninitialized memory.
727 =for apidoc Am|void|PoisonNew|void* dest|int nitems|type
729 PoisonWith(0xAB) for catching access to allocated but uninitialized memory.
731 =for apidoc Am|void|PoisonFree|void* dest|int nitems|type
733 PoisonWith(0xEF) for catching access to freed memory.
735 =for apidoc Am|void|Poison|void* dest|int nitems|type
737 PoisonWith(0xEF) for catching access to freed memory.
741 /* Maintained for backwards-compatibility only. Use newSV() instead. */
743 #define NEWSV(x,len) newSV(len)
746 #define MEM_SIZE_MAX ((MEM_SIZE)~0)
748 /* The +0.0 in MEM_WRAP_CHECK_ is an attempt to foil
749 * overly eager compilers that will bleat about e.g.
750 * (U16)n > (size_t)~0/sizeof(U16) always being false. */
751 #ifdef PERL_MALLOC_WRAP
752 #define MEM_WRAP_CHECK(n,t) MEM_WRAP_CHECK_1(n,t,PL_memory_wrap)
753 #define MEM_WRAP_CHECK_1(n,t,a) \
754 (void)(sizeof(t) > 1 && ((MEM_SIZE)(n)+0.0) > MEM_SIZE_MAX/sizeof(t) && (Perl_croak_nocontext("%s",(a)),0))
755 #define MEM_WRAP_CHECK_(n,t) MEM_WRAP_CHECK(n,t),
757 #define PERL_STRLEN_ROUNDUP(n) ((void)(((n) > MEM_SIZE_MAX - 2 * PERL_STRLEN_ROUNDUP_QUANTUM) ? (Perl_croak_nocontext("%s",PL_memory_wrap),0):0),((n-1+PERL_STRLEN_ROUNDUP_QUANTUM)&~((MEM_SIZE)PERL_STRLEN_ROUNDUP_QUANTUM-1)))
761 #define MEM_WRAP_CHECK(n,t)
762 #define MEM_WRAP_CHECK_1(n,t,a)
763 #define MEM_WRAP_CHECK_2(n,t,a,b)
764 #define MEM_WRAP_CHECK_(n,t)
766 #define PERL_STRLEN_ROUNDUP(n) (((n-1+PERL_STRLEN_ROUNDUP_QUANTUM)&~((MEM_SIZE)PERL_STRLEN_ROUNDUP_QUANTUM-1)))
772 * If PERL_MEM_LOG is defined, all Newx()s, Renew()s, and Safefree()s
773 * go through functions, which are handy for debugging breakpoints, but
774 * which more importantly get the immediate calling environment (file and
775 * line number, and C function name if available) passed in. This info can
776 * then be used for logging the calls, for which one gets a sample
777 * implementation unless -DPERL_MEM_LOG_NOIMPL is also defined.
780 * - all memory allocs do not get logged, only those
781 * that go through Newx() and derivatives (while all
782 * Safefrees do get logged)
783 * - __FILE__ and __LINE__ do not work everywhere
784 * - __func__ or __FUNCTION__ even less so
785 * - I think more goes on after the perlio frees but
786 * the thing is that STDERR gets closed (as do all
787 * the file descriptors)
788 * - no deeper calling stack than the caller of the Newx()
789 * or the kind, but do I look like a C reflection/introspection
791 * - the function prototypes for the logging functions
792 * probably should maybe be somewhere else than handy.h
793 * - one could consider inlining (macrofying) the logging
794 * for speed, but I am too lazy
795 * - one could imagine recording the allocations in a hash,
796 * (keyed by the allocation address?), and maintain that
797 * through reallocs and frees, but how to do that without
798 * any News() happening...?
799 * - lots of -Ddefines to get useful/controllable output
800 * - lots of ENV reads
803 PERL_EXPORT_C Malloc_t Perl_mem_log_alloc(const UV n, const UV typesize, const char *type_name, Malloc_t newalloc, const char *filename, const int linenumber, const char *funcname);
805 PERL_EXPORT_C Malloc_t Perl_mem_log_realloc(const UV n, const UV typesize, const char *type_name, Malloc_t oldalloc, Malloc_t newalloc, const char *filename, const int linenumber, const char *funcname);
807 PERL_EXPORT_C Malloc_t Perl_mem_log_free(Malloc_t oldalloc, const char *filename, const int linenumber, const char *funcname);
810 # ifndef PERL_MEM_LOG_NOIMPL
819 # if defined(PERL_IN_SV_C) /* those are only used in sv.c */
820 void Perl_mem_log_new_sv(const SV *sv, const char *filename, const int linenumber, const char *funcname);
821 void Perl_mem_log_del_sv(const SV *sv, const char *filename, const int linenumber, const char *funcname);
828 #define MEM_LOG_ALLOC(n,t,a) Perl_mem_log_alloc(n,sizeof(t),STRINGIFY(t),a,__FILE__,__LINE__,FUNCTION__)
829 #define MEM_LOG_REALLOC(n,t,v,a) Perl_mem_log_realloc(n,sizeof(t),STRINGIFY(t),v,a,__FILE__,__LINE__,FUNCTION__)
830 #define MEM_LOG_FREE(a) Perl_mem_log_free(a,__FILE__,__LINE__,FUNCTION__)
833 #ifndef MEM_LOG_ALLOC
834 #define MEM_LOG_ALLOC(n,t,a) (a)
836 #ifndef MEM_LOG_REALLOC
837 #define MEM_LOG_REALLOC(n,t,v,a) (a)
840 #define MEM_LOG_FREE(a) (a)
843 #define Newx(v,n,t) (v = (MEM_WRAP_CHECK_(n,t) (t*)MEM_LOG_ALLOC(n,t,safemalloc((MEM_SIZE)((n)*sizeof(t))))))
844 #define Newxc(v,n,t,c) (v = (MEM_WRAP_CHECK_(n,t) (c*)MEM_LOG_ALLOC(n,t,safemalloc((MEM_SIZE)((n)*sizeof(t))))))
845 #define Newxz(v,n,t) (v = (MEM_WRAP_CHECK_(n,t) (t*)MEM_LOG_ALLOC(n,t,safecalloc((n),sizeof(t)))))
848 /* pre 5.9.x compatibility */
849 #define New(x,v,n,t) Newx(v,n,t)
850 #define Newc(x,v,n,t,c) Newxc(v,n,t,c)
851 #define Newz(x,v,n,t) Newxz(v,n,t)
854 #define Renew(v,n,t) \
855 (v = (MEM_WRAP_CHECK_(n,t) (t*)MEM_LOG_REALLOC(n,t,v,saferealloc((Malloc_t)(v),(MEM_SIZE)((n)*sizeof(t))))))
856 #define Renewc(v,n,t,c) \
857 (v = (MEM_WRAP_CHECK_(n,t) (c*)MEM_LOG_REALLOC(n,t,v,saferealloc((Malloc_t)(v),(MEM_SIZE)((n)*sizeof(t))))))
860 #define Safefree(d) \
861 ((d) ? (void)(safefree(MEM_LOG_FREE((Malloc_t)(d))), Poison(&(d), 1, Malloc_t)) : (void) 0)
863 #define Safefree(d) safefree(MEM_LOG_FREE((Malloc_t)(d)))
866 #define Move(s,d,n,t) (MEM_WRAP_CHECK_(n,t) (void)memmove((char*)(d),(const char*)(s), (n) * sizeof(t)))
867 #define Copy(s,d,n,t) (MEM_WRAP_CHECK_(n,t) (void)memcpy((char*)(d),(const char*)(s), (n) * sizeof(t)))
868 #define Zero(d,n,t) (MEM_WRAP_CHECK_(n,t) (void)memzero((char*)(d), (n) * sizeof(t)))
870 #define MoveD(s,d,n,t) (MEM_WRAP_CHECK_(n,t) memmove((char*)(d),(const char*)(s), (n) * sizeof(t)))
871 #define CopyD(s,d,n,t) (MEM_WRAP_CHECK_(n,t) memcpy((char*)(d),(const char*)(s), (n) * sizeof(t)))
873 #define ZeroD(d,n,t) (MEM_WRAP_CHECK_(n,t) memzero((char*)(d), (n) * sizeof(t)))
875 /* Using bzero(), which returns void. */
876 #define ZeroD(d,n,t) (MEM_WRAP_CHECK_(n,t) memzero((char*)(d), (n) * sizeof(t)),d)
879 #define PoisonWith(d,n,t,b) (MEM_WRAP_CHECK_(n,t) (void)memset((char*)(d), (U8)(b), (n) * sizeof(t)))
880 #define PoisonNew(d,n,t) PoisonWith(d,n,t,0xAB)
881 #define PoisonFree(d,n,t) PoisonWith(d,n,t,0xEF)
882 #define Poison(d,n,t) PoisonFree(d,n,t)
884 #ifdef USE_STRUCT_COPY
885 #define StructCopy(s,d,t) (*((t*)(d)) = *((t*)(s)))
887 #define StructCopy(s,d,t) Copy(s,d,1,t)
890 #define C_ARRAY_LENGTH(a) (sizeof(a)/sizeof((a)[0]))
894 # define Perl_va_copy(s, d) va_copy(d, s)
896 # if defined(__va_copy)
897 # define Perl_va_copy(s, d) __va_copy(d, s)
899 # define Perl_va_copy(s, d) Copy(s, d, 1, va_list)
904 /* convenience debug macros */
906 #define pTHX_FORMAT "Perl interpreter: 0x%p"
907 #define pTHX__FORMAT ", Perl interpreter: 0x%p"
908 #define pTHX_VALUE_ (void *)my_perl,
909 #define pTHX_VALUE (void *)my_perl
910 #define pTHX__VALUE_ ,(void *)my_perl,
911 #define pTHX__VALUE ,(void *)my_perl
919 #endif /* USE_ITHREADS */
921 /* Perl_deprecate was not part of the public API, and did not have a deprecate()
922 shortcut macro defined without -DPERL_CORE. Neither codesearch.google.com nor
923 CPAN::Unpack show any users outside the core. */
925 # define deprecate(s) Perl_ck_warner_d(aTHX_ packWARN(WARN_DEPRECATED), "Use of " s " is deprecated")
930 * c-indentation-style: bsd
932 * indent-tabs-mode: t
935 * ex: set ts=8 sts=4 sw=4 noet: