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handy.h: should use EBCDIC libc isdigit()
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a0d0e21e 1/* handy.h
a687059c 2 *
1129b882
NC
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
a687059c 5 *
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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.
8d063cd8 8 *
8d063cd8
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9 */
10
85e6fe83 11#if !defined(__STDC__)
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12#ifdef NULL
13#undef NULL
14#endif
a687059c
LW
15#ifndef I286
16# define NULL 0
17#else
18# define NULL 0L
19#endif
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20#endif
21
24792b8d
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22#ifndef PERL_CORE
23# define Null(type) ((type)NULL)
954c1994
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24
25/*
ccfc67b7 26=head1 Handy Values
954c1994 27
3609ea0d 28=for apidoc AmU||Nullch
24792b8d 29Null character pointer. (No longer available when C<PERL_CORE> is defined.)
2307c6d0 30
954c1994 31=for apidoc AmU||Nullsv
24792b8d 32Null SV pointer. (No longer available when C<PERL_CORE> is defined.)
954c1994
GS
33
34=cut
35*/
36
24792b8d
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37# define Nullch Null(char*)
38# define Nullfp Null(PerlIO*)
39# define Nullsv Null(SV*)
40#endif
8d063cd8 41
641d3f0b
PP
42#ifdef TRUE
43#undef TRUE
44#endif
45#ifdef FALSE
46#undef FALSE
47#endif
48#define TRUE (1)
49#define FALSE (0)
50
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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;
53 * e.g.:
54 *
55 * const SV *sv = ...;
56 * AV *av1 = (AV*)sv; <== BAD: the const has been silently cast away
57 * AV *av2 = MUTABLE_AV(sv); <== GOOD: it may warn
58 */
59
b1bc3f34 60#if defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN)
f065df04 61# define MUTABLE_PTR(p) ({ void *_p = (p); _p; })
b1bc3f34
NC
62#else
63# define MUTABLE_PTR(p) ((void *) (p))
64#endif
65
a062e10d 66#define MUTABLE_AV(p) ((AV *)MUTABLE_PTR(p))
ea726b52 67#define MUTABLE_CV(p) ((CV *)MUTABLE_PTR(p))
159b6efe 68#define MUTABLE_GV(p) ((GV *)MUTABLE_PTR(p))
dbebbdb4 69#define MUTABLE_HV(p) ((HV *)MUTABLE_PTR(p))
a45c7426 70#define MUTABLE_IO(p) ((IO *)MUTABLE_PTR(p))
b1bc3f34 71#define MUTABLE_SV(p) ((SV *)MUTABLE_PTR(p))
27d4fb96
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72
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
76*/
8e84507e 77/* bool is built-in for g++-2.6.3 and later, which might be used
c1d22f6b
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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
8e84507e 80 also defines _G_HAVE_BOOL for both gcc and g++, but only g++
c1d22f6b
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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
5d94fbed 84*/
3609ea0d 85#ifdef __GNUG__ /* GNU g++ has bool built-in */
5d94fbed 86# ifndef HAS_BOOL
c1d22f6b 87# define HAS_BOOL 1
5d94fbed 88# endif
5d94fbed
AD
89#endif
90
641d3f0b
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91/* The NeXT dynamic loader headers will not build with the bool macro
92 So declare them now to clear confusion.
93*/
8f1f23e8 94#if defined(NeXT) || defined(__NeXT__)
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PP
95# undef FALSE
96# undef TRUE
97 typedef enum bool { FALSE = 0, TRUE = 1 } bool;
98# define ENUM_BOOL 1
99# ifndef HAS_BOOL
100# define HAS_BOOL 1
101# endif /* !HAS_BOOL */
8f1f23e8 102#endif /* NeXT || __NeXT__ */
641d3f0b 103
5d94fbed 104#ifndef HAS_BOOL
61bb5906 105# if defined(UTS) || defined(VMS)
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106# define bool int
107# else
108# define bool char
109# endif
c1d22f6b 110# define HAS_BOOL 1
a687059c 111#endif
0d3e774c 112
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113/* a simple (bool) cast may not do the right thing: if bool is defined
114 * as char for example, then the cast from int is implementation-defined
115 */
116
117#define cBOOL(cbool) ((bool)!!(cbool))
118
46c6c7e2 119/* Try to figure out __func__ or __FUNCTION__ equivalent, if any.
e352bcff
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120 * XXX Should really be a Configure probe, with HAS__FUNCTION__
121 * and FUNCTION__ as results.
122 * XXX Similarly, a Configure probe for __FILE__ and __LINE__ is needed. */
46c6c7e2
JH
123#if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || (defined(__SUNPRO_C)) /* C99 or close enough. */
124# define FUNCTION__ __func__
125#else
126# if (defined(_MSC_VER) && _MSC_VER < 1300) || /* Pre-MSVC 7.0 has neither __func__ nor __FUNCTION and no good workarounds, either. */ \
be73ebb0 127 (defined(__DECC_VER)) /* Tru64 or VMS, and strict C89 being used, but not modern enough cc (in Tur64, -c99 not known, only -std1). */
46c6c7e2
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128# define FUNCTION__ ""
129# else
130# define FUNCTION__ __FUNCTION__ /* Common extension. */
131# endif
132#endif
133
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134/* XXX A note on the perl source internal type system. The
135 original intent was that I32 be *exactly* 32 bits.
136
137 Currently, we only guarantee that I32 is *at least* 32 bits.
138 Specifically, if int is 64 bits, then so is I32. (This is the case
139 for the Cray.) This has the advantage of meshing nicely with
140 standard library calls (where we pass an I32 and the library is
141 expecting an int), but the disadvantage that an I32 is not 32 bits.
142 Andy Dougherty August 1996
24fef2a7 143
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144 There is no guarantee that there is *any* integral type with
145 exactly 32 bits. It is perfectly legal for a system to have
146 sizeof(short) == sizeof(int) == sizeof(long) == 8.
693762b4 147
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148 Similarly, there is no guarantee that I16 and U16 have exactly 16
149 bits.
693762b4 150
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151 For dealing with issues that may arise from various 32/64-bit
152 systems, we will ask Configure to check out
8175356b 153
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154 SHORTSIZE == sizeof(short)
155 INTSIZE == sizeof(int)
156 LONGSIZE == sizeof(long)
dc45a647 157 LONGLONGSIZE == sizeof(long long) (if HAS_LONG_LONG)
3609ea0d 158 PTRSIZE == sizeof(void *)
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159 DOUBLESIZE == sizeof(double)
160 LONG_DOUBLESIZE == sizeof(long double) (if HAS_LONG_DOUBLE).
8175356b 161
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162*/
163
69512466
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164#ifdef I_INTTYPES /* e.g. Linux has int64_t without <inttypes.h> */
165# include <inttypes.h>
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166# ifdef INT32_MIN_BROKEN
167# undef INT32_MIN
168# define INT32_MIN (-2147483647-1)
169# endif
170# ifdef INT64_MIN_BROKEN
171# undef INT64_MIN
172# define INT64_MIN (-9223372036854775807LL-1)
173# endif
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174#endif
175
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176typedef I8TYPE I8;
177typedef U8TYPE U8;
178typedef I16TYPE I16;
179typedef U16TYPE U16;
180typedef I32TYPE I32;
181typedef U32TYPE U32;
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182#ifdef PERL_CORE
183# ifdef HAS_QUAD
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184typedef I64TYPE I64;
185typedef U64TYPE U64;
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186# endif
187#endif /* PERL_CORE */
8175356b 188
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189#if defined(HAS_QUAD) && defined(USE_64_BIT_INT)
190# ifndef UINT64_C /* usually from <inttypes.h> */
191# if defined(HAS_LONG_LONG) && QUADKIND == QUAD_IS_LONG_LONG
192# define INT64_C(c) CAT2(c,LL)
193# define UINT64_C(c) CAT2(c,ULL)
194# else
195# if LONGSIZE == 8 && QUADKIND == QUAD_IS_LONG
196# define INT64_C(c) CAT2(c,L)
197# define UINT64_C(c) CAT2(c,UL)
198# else
fa58a56f
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199# if defined(_WIN64) && defined(_MSC_VER)
200# define INT64_C(c) CAT2(c,I64)
201# define UINT64_C(c) CAT2(c,UI64)
202# else
203# define INT64_C(c) ((I64TYPE)(c))
204# define UINT64_C(c) ((U64TYPE)(c))
205# endif
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206# endif
207# endif
e8c95190
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208# endif
209#endif
dc750f2e 210
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211/* HMB H.Merijn Brand - a placeholder for preparing Configure patches:
212 *
213 * USE_DTRACE HAS_PSEUDOFORK HAS_TIMEGM LOCALTIME_R_NEEDS_TZSET
214 * GMTIME_MAX GMTIME_MIN LOCALTIME_MAX LOCALTIME_MIN
215 * HAS_CTIME64 HAS_LOCALTIME64 HAS_GMTIME64 HAS_DIFFTIME64
216 * HAS_MKTIME64 HAS_ASCTIME64 HAS_GETADDRINFO HAS_GETNAMEINFO
7636ea95 217 * HAS_INETNTOP HAS_INETPTON CHARBITS HAS_PRCTL
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218 * Not (yet) used at top level, but mention them for metaconfig
219 */
e8c95190 220
a22e52b9
JH
221/* Mention I8SIZE, U8SIZE, I16SIZE, U16SIZE, I32SIZE, U32SIZE,
222 I64SIZE, and U64SIZE here so that metaconfig pulls them in. */
223
d8668976 224#if defined(UINT8_MAX) && defined(INT16_MAX) && defined(INT32_MAX)
5ff3f7a4 225
5ff3f7a4
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226/* I8_MAX and I8_MIN constants are not defined, as I8 is an ambiguous type.
227 Please search CHAR_MAX in perl.h for further details. */
228#define U8_MAX UINT8_MAX
229#define U8_MIN UINT8_MIN
230
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231#define I16_MAX INT16_MAX
232#define I16_MIN INT16_MIN
233#define U16_MAX UINT16_MAX
234#define U16_MIN UINT16_MIN
235
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236#define I32_MAX INT32_MAX
237#define I32_MIN INT32_MIN
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238#ifndef UINT32_MAX_BROKEN /* e.g. HP-UX with gcc messes this up */
239# define U32_MAX UINT32_MAX
240#else
241# define U32_MAX 4294967295U
242#endif
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243#define U32_MIN UINT32_MIN
244
245#else
246
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247/* I8_MAX and I8_MIN constants are not defined, as I8 is an ambiguous type.
248 Please search CHAR_MAX in perl.h for further details. */
27d4fb96
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249#define U8_MAX PERL_UCHAR_MAX
250#define U8_MIN PERL_UCHAR_MIN
79072805 251
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252#define I16_MAX PERL_SHORT_MAX
253#define I16_MIN PERL_SHORT_MIN
254#define U16_MAX PERL_USHORT_MAX
255#define U16_MIN PERL_USHORT_MIN
79072805 256
c4f23d77 257#if LONGSIZE > 4
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258# define I32_MAX PERL_INT_MAX
259# define I32_MIN PERL_INT_MIN
260# define U32_MAX PERL_UINT_MAX
261# define U32_MIN PERL_UINT_MIN
79072805 262#else
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263# define I32_MAX PERL_LONG_MAX
264# define I32_MIN PERL_LONG_MIN
265# define U32_MAX PERL_ULONG_MAX
266# define U32_MIN PERL_ULONG_MIN
79072805
LW
267#endif
268
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269#endif
270
58a9a5d5 271/* log(2) is pretty close to 0.30103, just in case anyone is grepping for it */
fc36a67e
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272#define BIT_DIGITS(N) (((N)*146)/485 + 1) /* log2(10) =~ 146/485 */
273#define TYPE_DIGITS(T) BIT_DIGITS(sizeof(T) * 8)
274#define TYPE_CHARS(T) (TYPE_DIGITS(T) + 2) /* sign, NUL */
275
ff68c719 276#define Ctl(ch) ((ch) & 037)
8d063cd8 277
3fe05580
MHM
278/*
279=head1 SV-Body Allocation
280
281=for apidoc Ama|SV*|newSVpvs|const char* s
282Like C<newSVpvn>, but takes a literal string instead of a string/length pair.
283
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NC
284=for apidoc Ama|SV*|newSVpvs_flags|const char* s|U32 flags
285Like C<newSVpvn_flags>, but takes a literal string instead of a string/length
286pair.
287
3fe05580
MHM
288=for apidoc Ama|SV*|newSVpvs_share|const char* s
289Like C<newSVpvn_share>, but takes a literal string instead of a string/length
290pair and omits the hash parameter.
291
7b4e7469 292=for apidoc Am|void|sv_catpvs|SV* sv|const char* s
3fe05580
MHM
293Like C<sv_catpvn>, but takes a literal string instead of a string/length pair.
294
7b4e7469 295=for apidoc Am|void|sv_setpvs|SV* sv|const char* s
3fe05580
MHM
296Like C<sv_setpvn>, but takes a literal string instead of a string/length pair.
297
298=head1 Memory Management
299
300=for apidoc Ama|char*|savepvs|const char* s
301Like C<savepvn>, but takes a literal string instead of a string/length pair.
302
303=head1 GV Functions
304
305=for apidoc Am|HV*|gv_stashpvs|const char* name|I32 create
306Like C<gv_stashpvn>, but takes a literal string instead of a string/length pair.
307
308=head1 Hash Manipulation Functions
309
310=for apidoc Am|SV**|hv_fetchs|HV* tb|const char* key|I32 lval
311Like C<hv_fetch>, but takes a literal string instead of a string/length pair.
312
313=for apidoc Am|SV**|hv_stores|HV* tb|const char* key|NULLOK SV* val
314Like C<hv_store>, but takes a literal string instead of a string/length pair
315and omits the hash parameter.
316
510966aa
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317=head1 Lexer interface
318
319=for apidoc Amx|void|lex_stuff_pvs|const char *pv|U32 flags
320
321Like L</lex_stuff_pvn>, but takes a literal string instead of a
322string/length pair.
323
3fe05580
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324=cut
325*/
326
65177ae0 327/* concatenating with "" ensures that only literal strings are accepted as argument */
26bfd924 328#define STR_WITH_LEN(s) ("" s ""), (sizeof(s)-1)
2efa8cc7 329
ba3a79e7
GA
330/* note that STR_WITH_LEN() can't be used as argument to macros or functions that
331 * under some configurations might be macros, which means that it requires the full
332 * Perl_xxx(aTHX_ ...) form for any API calls where it's used.
333 */
334
335/* STR_WITH_LEN() shortcuts */
336#define newSVpvs(str) Perl_newSVpvn(aTHX_ STR_WITH_LEN(str))
84bafc02
NC
337#define newSVpvs_flags(str,flags) \
338 Perl_newSVpvn_flags(aTHX_ STR_WITH_LEN(str), flags)
ba3a79e7
GA
339#define newSVpvs_share(str) Perl_newSVpvn_share(aTHX_ STR_WITH_LEN(str), 0)
340#define sv_catpvs(sv, str) Perl_sv_catpvn_flags(aTHX_ sv, STR_WITH_LEN(str), SV_GMAGIC)
3fe05580 341#define sv_setpvs(sv, str) Perl_sv_setpvn(aTHX_ sv, STR_WITH_LEN(str))
ba3a79e7
GA
342#define savepvs(str) Perl_savepvn(aTHX_ STR_WITH_LEN(str))
343#define gv_stashpvs(str, create) Perl_gv_stashpvn(aTHX_ STR_WITH_LEN(str), create)
5c1737d1 344#define gv_fetchpvs(namebeg, add, sv_type) Perl_gv_fetchpvn_flags(aTHX_ STR_WITH_LEN(namebeg), add, sv_type)
a038e571
NC
345#define hv_fetchs(hv,key,lval) \
346 ((SV **)Perl_hv_common(aTHX_ (hv), NULL, STR_WITH_LEN(key), 0, \
347 (lval) ? (HV_FETCH_JUST_SV | HV_FETCH_LVALUE) \
348 : HV_FETCH_JUST_SV, NULL, 0))
349
350#define hv_stores(hv,key,val) \
351 ((SV **)Perl_hv_common(aTHX_ (hv), NULL, STR_WITH_LEN(key), 0, \
352 (HV_FETCH_ISSTORE|HV_FETCH_JUST_SV), (val), 0))
ba3a79e7 353
510966aa
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354#define lex_stuff_pvs(pv,flags) Perl_lex_stuff_pvn(aTHX_ STR_WITH_LEN(pv), flags)
355
b96d8cd9
NC
356#define get_cvs(str, flags) \
357 Perl_get_cvn_flags(aTHX_ STR_WITH_LEN(str), (flags))
5c1737d1 358
954c1994 359/*
ccfc67b7
JH
360=head1 Miscellaneous Functions
361
954c1994
GS
362=for apidoc Am|bool|strNE|char* s1|char* s2
363Test two strings to see if they are different. Returns true or
364false.
365
366=for apidoc Am|bool|strEQ|char* s1|char* s2
367Test two strings to see if they are equal. Returns true or false.
368
369=for apidoc Am|bool|strLT|char* s1|char* s2
370Test two strings to see if the first, C<s1>, is less than the second,
371C<s2>. Returns true or false.
372
373=for apidoc Am|bool|strLE|char* s1|char* s2
374Test two strings to see if the first, C<s1>, is less than or equal to the
375second, C<s2>. Returns true or false.
376
377=for apidoc Am|bool|strGT|char* s1|char* s2
378Test two strings to see if the first, C<s1>, is greater than the second,
379C<s2>. Returns true or false.
380
381=for apidoc Am|bool|strGE|char* s1|char* s2
382Test two strings to see if the first, C<s1>, is greater than or equal to
383the second, C<s2>. Returns true or false.
384
385=for apidoc Am|bool|strnNE|char* s1|char* s2|STRLEN len
386Test two strings to see if they are different. The C<len> parameter
387indicates the number of bytes to compare. Returns true or false. (A
388wrapper for C<strncmp>).
389
390=for apidoc Am|bool|strnEQ|char* s1|char* s2|STRLEN len
391Test two strings to see if they are equal. The C<len> parameter indicates
392the number of bytes to compare. Returns true or false. (A wrapper for
393C<strncmp>).
394
395=cut
396*/
397
8d063cd8
LW
398#define strNE(s1,s2) (strcmp(s1,s2))
399#define strEQ(s1,s2) (!strcmp(s1,s2))
400#define strLT(s1,s2) (strcmp(s1,s2) < 0)
401#define strLE(s1,s2) (strcmp(s1,s2) <= 0)
402#define strGT(s1,s2) (strcmp(s1,s2) > 0)
403#define strGE(s1,s2) (strcmp(s1,s2) >= 0)
404#define strnNE(s1,s2,l) (strncmp(s1,s2,l))
405#define strnEQ(s1,s2,l) (!strncmp(s1,s2,l))
378cc40b 406
36477c24
PP
407#ifdef HAS_MEMCMP
408# define memNE(s1,s2,l) (memcmp(s1,s2,l))
409# define memEQ(s1,s2,l) (!memcmp(s1,s2,l))
410#else
411# define memNE(s1,s2,l) (bcmp(s1,s2,l))
412# define memEQ(s1,s2,l) (!bcmp(s1,s2,l))
413#endif
414
568a785a 415#define memEQs(s1, l, s2) \
8e6497b6 416 (sizeof(s2)-1 == l && memEQ(s1, ("" s2 ""), (sizeof(s2)-1)))
568a785a
NC
417#define memNEs(s1, l, s2) !memEQs(s1, l, s2)
418
bbce6d69
PP
419/*
420 * Character classes.
421 *
422 * Unfortunately, the introduction of locales means that we
423 * can't trust isupper(), etc. to tell the truth. And when
424 * it comes to /\w+/ with tainting enabled, we *must* be able
425 * to trust our character classes.
426 *
427 * Therefore, the default tests in the text of Perl will be
428 * independent of locale. Any code that wants to depend on
429 * the current locale will use the tests that begin with "lc".
430 */
431
2304df62
AD
432#ifdef HAS_SETLOCALE /* XXX Is there a better test for this? */
433# ifndef CTYPE256
434# define CTYPE256
435# endif
436#endif
437
954c1994 438/*
ccfc67b7
JH
439
440=head1 Character classes
06dc89af
KW
441The functions in this section operate using the character set of the platform
442Perl is running on, and are unaffected by locale. For ASCII platforms, they
443will all return false for characters outside the ASCII range. For EBCDIC
444platforms, they use the code page of the platform. The code pages that Perl
445knows about all have 8-bit characters, so most of these functions will return
446true for more characters than on ASCII platforms.
ccfc67b7 447
954c1994 448=for apidoc Am|bool|isALNUM|char ch
06dc89af
KW
449Returns a boolean indicating whether the C C<char> is an
450alphanumeric character (including underscore) or digit in the platform's native
451character set.
954c1994
GS
452
453=for apidoc Am|bool|isALPHA|char ch
06dc89af
KW
454Returns a boolean indicating whether the C C<char> is an
455alphabetic character in the platform's native character set.
954c1994
GS
456
457=for apidoc Am|bool|isSPACE|char ch
06dc89af
KW
458Returns a boolean indicating whether the C C<char> is a
459whitespace character in the platform's native character set.
954c1994
GS
460
461=for apidoc Am|bool|isDIGIT|char ch
06dc89af
KW
462Returns a boolean indicating whether the C C<char> is a
463digit in the platform's native character set.
954c1994 464
c99e91e9 465=for apidoc Am|bool|isOCTAL|char ch
06dc89af
KW
466Returns a boolean indicating whether the C C<char> is an
467octal digit, [0-7] in the platform's native character set.
c99e91e9 468
954c1994 469=for apidoc Am|bool|isUPPER|char ch
06dc89af
KW
470Returns a boolean indicating whether the C C<char> is an
471uppercase character in the platform's native character set.
954c1994
GS
472
473=for apidoc Am|bool|isLOWER|char ch
06dc89af
KW
474Returns a boolean indicating whether the C C<char> is a
475lowercase character in the platform's native character set.
954c1994 476
e7c1e6c1
KW
477=head1 Character case changing
478
954c1994 479=for apidoc Am|char|toUPPER|char ch
06dc89af
KW
480Converts the specified character to uppercase in the platform's native
481character set, if possible; otherwise returns the input character itself.
954c1994
GS
482
483=for apidoc Am|char|toLOWER|char ch
06dc89af
KW
484Converts the specified character to lowercase in the platform's native
485character set, if possible; otherwise returns the input character itself.
954c1994
GS
486
487=cut
353c9b6f
KW
488
489NOTE: Since some of these are macros, there is no check in those that the
490parameter is a char or U8. This means that if called with a larger width
491parameter, casts can silently truncate and yield wrong results.
492
62fa66b6
KW
493Also note that these macros are repeated in Devel::PPPort, so should also be
494patched there. The file as of this writing is cpan/Devel-PPPort/parts/inc/misc
495
954c1994
GS
496*/
497
cf301eb7
KW
498/* FITS_IN_8_BITS(c) returns true if c occupies no more than 8 bits. It is
499 * designed to be hopefully bomb-proof, making sure that no bits of
500 * information are lost even on a 64-bit machine, but to get the compiler to
501 * optimize it out if possible. This is because Configure makes sure that the
502 * machine has an 8-bit byte, so if c is stored in a byte, the sizeof()
503 * guarantees that this evaluates to a constant true at compile time. The use
504 * of the mask instead of '< 256' keeps gcc from complaining that it is alway
d0dcc402
KW
505 * true, when c's storage class is a byte. Use U64TYPE because U64 is known
506 * only in the perl core, and this macro can be called from outside that */
cf301eb7 507#ifdef HAS_QUAD
d0dcc402 508# define FITS_IN_8_BITS(c) ((sizeof(c) == 1) || (((U64TYPE)(c) & 0xFF) == (U64TYPE)(c)))
cf301eb7
KW
509#else
510# define FITS_IN_8_BITS(c) ((sizeof(c) == 1) || (((U32)(c) & 0xFF) == (U32)(c)))
511#endif
512
6515cb76
KW
513#define isASCII(c) (FITS_IN_8_BITS(c) ? NATIVE_TO_UNI((U8) c) <= 127 : 0)
514
49323284
KW
515#define isALNUM(c) isWORDCHAR(c)
516#define isALNUMU(c) isWORDCHAR_L1(c)
bbce6d69 517#define isALPHA(c) (isUPPER(c) || isLOWER(c))
cb233ae3
KW
518/* ALPHAU includes Unicode semantics for latin1 characters. It has an extra
519 * >= AA test to speed up ASCII-only tests at the expense of the others */
a9fccb9a
KW
520/* XXX decide whether to document the ALPHAU, ALNUMU and isSPACE_L1 functions.
521 * Most of these should be implemented as table lookup for speed */
cb233ae3
KW
522#define isALPHAU(c) (isALPHA(c) || (NATIVE_TO_UNI((U8) c) >= 0xAA \
523 && ((NATIVE_TO_UNI((U8) c) >= 0xC0 \
524 && NATIVE_TO_UNI((U8) c) != 0xD7 && NATIVE_TO_UNI((U8) c) != 0xF7) \
525 || NATIVE_TO_UNI((U8) c) == 0xAA \
526 || NATIVE_TO_UNI((U8) c) == 0xB5 \
527 || NATIVE_TO_UNI((U8) c) == 0xBA)))
cb233ae3
KW
528
529/* continuation character for legal NAME in \N{NAME} */
530#define isCHARNAME_CONT(c) (isALNUMU(c) || (c) == ' ' || (c) == '-' || (c) == '(' || (c) == ')' || (c) == ':' || NATIVE_TO_UNI((U8) c) == 0xA0)
7d79683e 531
7d79683e 532#define isIDFIRST(c) (isALPHA(c) || (c) == '_')
c99e91e9 533#define isOCTAL(c) ((c) >= '0' && (c) <= '7')
7d79683e
KW
534#define isSPACE_L1(c) (isSPACE(c) \
535 || (NATIVE_TO_UNI(c) == 0x85 || NATIVE_TO_UNI(c) == 0xA0))
49323284
KW
536#define isWORDCHAR(c) (isALPHA(c) || isDIGIT(c) || (c) == '_')
537#define isWORDCHAR_L1(c) (isDIGIT(c) || isALPHAU(c) || (c) == '_')
9d116dd7 538#ifdef EBCDIC
fae4c845 539 /* In EBCDIC we do not do locales: therefore can use native functions */
b8c5462f 540# define isALNUMC(c) isalnum(c)
0bc70f7f 541# define isBLANK(c) ((c) == ' ' || (c) == '\t' || NATIVE_TO_UNI(c) == 0xA0)
b8c5462f 542# define isCNTRL(c) iscntrl(c)
9916188f 543# define isDIGIT(c) isdigit(c)
b8c5462f 544# define isGRAPH(c) isgraph(c)
7d79683e 545# define isLOWER(c) islower(c)
9d116dd7 546# define isPRINT(c) isprint(c)
56e4b611 547# define isPSXSPC(c) isspace(c)
b8c5462f 548# define isPUNCT(c) ispunct(c)
174b5e76 549# define isSPACE(c) (isPSXSPC(c) && (c) != '\v')
7d79683e 550# define isUPPER(c) isupper(c)
b8c5462f 551# define isXDIGIT(c) isxdigit(c)
9d116dd7 552# define toLOWER(c) tolower(c)
7d79683e 553# define toUPPER(c) toupper(c)
fae4c845 554#else /* Not EBCDIC */
b8c5462f 555# define isALNUMC(c) (isALPHA(c) || isDIGIT(c))
0bc70f7f 556# define isBLANK(c) ((c) == ' ' || (c) == '\t')
353c9b6f 557# define isCNTRL(c) ((U8) (c) < ' ' || (c) == 127)
9916188f 558# define isDIGIT(c) ((c) >= '0' && (c) <= '9')
b8c5462f 559# define isGRAPH(c) (isALNUM(c) || isPUNCT(c))
7d79683e 560# define isLOWER(c) ((c) >= 'a' && (c) <= 'z')
dc7a1c02 561# define isPRINT(c) (((c) >= 32 && (c) < 127))
56e4b611 562# define isPSXSPC(c) (isSPACE(c) || (c) == '\v')
b8c5462f 563# define isPUNCT(c) (((c) >= 33 && (c) <= 47) || ((c) >= 58 && (c) <= 64) || ((c) >= 91 && (c) <= 96) || ((c) >= 123 && (c) <= 126))
174b5e76
KW
564# define isSPACE(c) \
565 ((c) == ' ' || (c) == '\t' || (c) == '\n' || (c) =='\r' || (c) == '\f')
7d79683e 566# define isUPPER(c) ((c) >= 'A' && (c) <= 'Z')
c302d089 567# define isXDIGIT(c) (isDIGIT(c) || ((c) >= 'a' && (c) <= 'f') || ((c) >= 'A' && (c) <= 'F'))
00f254e2 568
12e948b5 569 /* ASCII casing. */
9d116dd7 570# define toLOWER(c) (isUPPER(c) ? (c) + ('a' - 'A') : (c))
7d79683e 571# define toUPPER(c) (isLOWER(c) ? (c) - ('a' - 'A') : (c))
9d116dd7 572#endif
bbce6d69 573
1a0901db
KW
574
575/* Use table lookup for speed; return error character for input
576 * out-of-range */
577#define toLOWER_LATIN1(c) (FITS_IN_8_BITS(c) \
578 ? UNI_TO_NATIVE(PL_latin1_lc[ \
579 NATIVE_TO_UNI( (U8) (c)) ]) \
580 : UNICODE_REPLACEMENT)
581/* Modified uc. Is correct uc except for three non-ascii chars which are
582 * all mapped to one of them, and these need special handling; error
583 * character for input out-of-range */
584#define toUPPER_LATIN1_MOD(c) (FITS_IN_8_BITS(c) \
585 ? UNI_TO_NATIVE(PL_mod_latin1_uc[ \
586 NATIVE_TO_UNI( (U8) (c)) ]) \
587 : UNICODE_REPLACEMENT)
588
bbce6d69
PP
589#ifdef USE_NEXT_CTYPE
590
591# define isALNUM_LC(c) \
37bd1396 592 (NXIsAlNum((unsigned int)(c)) || (char)(c) == '_')
ff68c719
PP
593# define isIDFIRST_LC(c) \
594 (NXIsAlpha((unsigned int)(c)) || (char)(c) == '_')
595# define isALPHA_LC(c) NXIsAlpha((unsigned int)(c))
596# define isSPACE_LC(c) NXIsSpace((unsigned int)(c))
597# define isDIGIT_LC(c) NXIsDigit((unsigned int)(c))
598# define isUPPER_LC(c) NXIsUpper((unsigned int)(c))
599# define isLOWER_LC(c) NXIsLower((unsigned int)(c))
37bd1396 600# define isALNUMC_LC(c) NXIsAlNum((unsigned int)(c))
b8c5462f
JH
601# define isCNTRL_LC(c) NXIsCntrl((unsigned int)(c))
602# define isGRAPH_LC(c) NXIsGraph((unsigned int)(c))
ff68c719 603# define isPRINT_LC(c) NXIsPrint((unsigned int)(c))
b8c5462f 604# define isPUNCT_LC(c) NXIsPunct((unsigned int)(c))
ff68c719
PP
605# define toUPPER_LC(c) NXToUpper((unsigned int)(c))
606# define toLOWER_LC(c) NXToLower((unsigned int)(c))
bbce6d69
PP
607
608#else /* !USE_NEXT_CTYPE */
b8c5462f 609
bbce6d69
PP
610# if defined(CTYPE256) || (!defined(isascii) && !defined(HAS_ISASCII))
611
b8c5462f 612# define isALNUM_LC(c) (isalnum((unsigned char)(c)) || (char)(c) == '_')
ff68c719 613# define isIDFIRST_LC(c) (isalpha((unsigned char)(c)) || (char)(c) == '_')
bbce6d69
PP
614# define isALPHA_LC(c) isalpha((unsigned char)(c))
615# define isSPACE_LC(c) isspace((unsigned char)(c))
616# define isDIGIT_LC(c) isdigit((unsigned char)(c))
617# define isUPPER_LC(c) isupper((unsigned char)(c))
618# define isLOWER_LC(c) islower((unsigned char)(c))
b8c5462f
JH
619# define isALNUMC_LC(c) isalnum((unsigned char)(c))
620# define isCNTRL_LC(c) iscntrl((unsigned char)(c))
621# define isGRAPH_LC(c) isgraph((unsigned char)(c))
bbce6d69 622# define isPRINT_LC(c) isprint((unsigned char)(c))
b8c5462f 623# define isPUNCT_LC(c) ispunct((unsigned char)(c))
bbce6d69
PP
624# define toUPPER_LC(c) toupper((unsigned char)(c))
625# define toLOWER_LC(c) tolower((unsigned char)(c))
626
627# else
628
3609ea0d 629# define isALNUM_LC(c) (isascii(c) && (isalnum(c) || (c) == '_'))
bbce6d69
PP
630# define isIDFIRST_LC(c) (isascii(c) && (isalpha(c) || (c) == '_'))
631# define isALPHA_LC(c) (isascii(c) && isalpha(c))
632# define isSPACE_LC(c) (isascii(c) && isspace(c))
633# define isDIGIT_LC(c) (isascii(c) && isdigit(c))
634# define isUPPER_LC(c) (isascii(c) && isupper(c))
635# define isLOWER_LC(c) (isascii(c) && islower(c))
b8c5462f
JH
636# define isALNUMC_LC(c) (isascii(c) && isalnum(c))
637# define isCNTRL_LC(c) (isascii(c) && iscntrl(c))
638# define isGRAPH_LC(c) (isascii(c) && isgraph(c))
bbce6d69 639# define isPRINT_LC(c) (isascii(c) && isprint(c))
b8c5462f 640# define isPUNCT_LC(c) (isascii(c) && ispunct(c))
bbce6d69
PP
641# define toUPPER_LC(c) toupper(c)
642# define toLOWER_LC(c) tolower(c)
643
644# endif
a0d0e21e 645#endif /* USE_NEXT_CTYPE */
55204971 646
aaa51d5e
JF
647#define isPSXSPC_LC(c) (isSPACE_LC(c) || (c) == '\v')
648#define isBLANK_LC(c) isBLANK(c) /* could be wrong */
649
a0ed51b3
LW
650#define isALNUM_uni(c) is_uni_alnum(c)
651#define isIDFIRST_uni(c) is_uni_idfirst(c)
652#define isALPHA_uni(c) is_uni_alpha(c)
653#define isSPACE_uni(c) is_uni_space(c)
654#define isDIGIT_uni(c) is_uni_digit(c)
655#define isUPPER_uni(c) is_uni_upper(c)
656#define isLOWER_uni(c) is_uni_lower(c)
b8c5462f
JH
657#define isASCII_uni(c) is_uni_ascii(c)
658#define isCNTRL_uni(c) is_uni_cntrl(c)
659#define isGRAPH_uni(c) is_uni_graph(c)
a0ed51b3 660#define isPRINT_uni(c) is_uni_print(c)
b8c5462f
JH
661#define isPUNCT_uni(c) is_uni_punct(c)
662#define isXDIGIT_uni(c) is_uni_xdigit(c)
a2a2844f
JH
663#define toUPPER_uni(c,s,l) to_uni_upper(c,s,l)
664#define toTITLE_uni(c,s,l) to_uni_title(c,s,l)
665#define toLOWER_uni(c,s,l) to_uni_lower(c,s,l)
b8d68ded 666#define toFOLD_uni(c,s,l) to_uni_fold(c,s,l)
a0ed51b3 667
aaa51d5e
JF
668#define isPSXSPC_uni(c) (isSPACE_uni(c) ||(c) == '\f')
669#define isBLANK_uni(c) isBLANK(c) /* could be wrong */
670
9041c2e3
NIS
671#define isALNUM_LC_uvchr(c) (c < 256 ? isALNUM_LC(c) : is_uni_alnum_lc(c))
672#define isIDFIRST_LC_uvchr(c) (c < 256 ? isIDFIRST_LC(c) : is_uni_idfirst_lc(c))
673#define isALPHA_LC_uvchr(c) (c < 256 ? isALPHA_LC(c) : is_uni_alpha_lc(c))
674#define isSPACE_LC_uvchr(c) (c < 256 ? isSPACE_LC(c) : is_uni_space_lc(c))
675#define isDIGIT_LC_uvchr(c) (c < 256 ? isDIGIT_LC(c) : is_uni_digit_lc(c))
676#define isUPPER_LC_uvchr(c) (c < 256 ? isUPPER_LC(c) : is_uni_upper_lc(c))
677#define isLOWER_LC_uvchr(c) (c < 256 ? isLOWER_LC(c) : is_uni_lower_lc(c))
9041c2e3
NIS
678#define isCNTRL_LC_uvchr(c) (c < 256 ? isCNTRL_LC(c) : is_uni_cntrl_lc(c))
679#define isGRAPH_LC_uvchr(c) (c < 256 ? isGRAPH_LC(c) : is_uni_graph_lc(c))
680#define isPRINT_LC_uvchr(c) (c < 256 ? isPRINT_LC(c) : is_uni_print_lc(c))
681#define isPUNCT_LC_uvchr(c) (c < 256 ? isPUNCT_LC(c) : is_uni_punct_lc(c))
a0ed51b3 682
aaa51d5e
JF
683#define isPSXSPC_LC_uni(c) (isSPACE_LC_uni(c) ||(c) == '\f')
684#define isBLANK_LC_uni(c) isBLANK(c) /* could be wrong */
685
a0ed51b3 686#define isALNUM_utf8(p) is_utf8_alnum(p)
82686b01
JH
687/* The ID_Start of Unicode is quite limiting: it assumes a L-class
688 * character (meaning that you cannot have, say, a CJK character).
689 * Instead, let's allow ID_Continue but not digits. */
690#define isIDFIRST_utf8(p) (is_utf8_idcont(p) && !is_utf8_digit(p))
a0ed51b3
LW
691#define isALPHA_utf8(p) is_utf8_alpha(p)
692#define isSPACE_utf8(p) is_utf8_space(p)
693#define isDIGIT_utf8(p) is_utf8_digit(p)
694#define isUPPER_utf8(p) is_utf8_upper(p)
695#define isLOWER_utf8(p) is_utf8_lower(p)
b8c5462f
JH
696#define isASCII_utf8(p) is_utf8_ascii(p)
697#define isCNTRL_utf8(p) is_utf8_cntrl(p)
698#define isGRAPH_utf8(p) is_utf8_graph(p)
a0ed51b3 699#define isPRINT_utf8(p) is_utf8_print(p)
b8c5462f
JH
700#define isPUNCT_utf8(p) is_utf8_punct(p)
701#define isXDIGIT_utf8(p) is_utf8_xdigit(p)
a2a2844f
JH
702#define toUPPER_utf8(p,s,l) to_utf8_upper(p,s,l)
703#define toTITLE_utf8(p,s,l) to_utf8_title(p,s,l)
704#define toLOWER_utf8(p,s,l) to_utf8_lower(p,s,l)
a0ed51b3 705
aaa51d5e
JF
706#define isPSXSPC_utf8(c) (isSPACE_utf8(c) ||(c) == '\f')
707#define isBLANK_utf8(c) isBLANK(c) /* could be wrong */
708
9041c2e3
NIS
709#define isALNUM_LC_utf8(p) isALNUM_LC_uvchr(utf8_to_uvchr(p, 0))
710#define isIDFIRST_LC_utf8(p) isIDFIRST_LC_uvchr(utf8_to_uvchr(p, 0))
711#define isALPHA_LC_utf8(p) isALPHA_LC_uvchr(utf8_to_uvchr(p, 0))
712#define isSPACE_LC_utf8(p) isSPACE_LC_uvchr(utf8_to_uvchr(p, 0))
713#define isDIGIT_LC_utf8(p) isDIGIT_LC_uvchr(utf8_to_uvchr(p, 0))
714#define isUPPER_LC_utf8(p) isUPPER_LC_uvchr(utf8_to_uvchr(p, 0))
715#define isLOWER_LC_utf8(p) isLOWER_LC_uvchr(utf8_to_uvchr(p, 0))
716#define isALNUMC_LC_utf8(p) isALNUMC_LC_uvchr(utf8_to_uvchr(p, 0))
717#define isCNTRL_LC_utf8(p) isCNTRL_LC_uvchr(utf8_to_uvchr(p, 0))
718#define isGRAPH_LC_utf8(p) isGRAPH_LC_uvchr(utf8_to_uvchr(p, 0))
719#define isPRINT_LC_utf8(p) isPRINT_LC_uvchr(utf8_to_uvchr(p, 0))
720#define isPUNCT_LC_utf8(p) isPUNCT_LC_uvchr(utf8_to_uvchr(p, 0))
a0ed51b3 721
aaa51d5e
JF
722#define isPSXSPC_LC_utf8(c) (isSPACE_LC_utf8(c) ||(c) == '\f')
723#define isBLANK_LC_utf8(c) isBLANK(c) /* could be wrong */
724
6ae9f32a
KW
725/* This conversion works both ways, strangely enough. On EBCDIC platforms,
726 * CTRL-@ is 0, CTRL-A is 1, etc, just like on ASCII */
727# define toCTRL(c) (toUPPER(NATIVE_TO_UNI(c)) ^ 64)
bbce6d69 728
dea28490
JJ
729/* Line numbers are unsigned, 32 bits. */
730typedef U32 line_t;
dea28490 731#define NOLINE ((line_t) 4294967295UL)
378cc40b 732
91152fc1
DG
733/* Helpful alias for version prescan */
734#define is_LAX_VERSION(a,b) \
735 (a != Perl_prescan_version(aTHX_ a, FALSE, b, NULL, NULL, NULL, NULL))
736
737#define is_STRICT_VERSION(a,b) \
738 (a != Perl_prescan_version(aTHX_ a, TRUE, b, NULL, NULL, NULL, NULL))
739
740#define BADVERSION(a,b,c) \
741 if (b) { \
742 *b = c; \
743 } \
744 return a;
8c52afec 745
8e84507e 746/*
ccfc67b7
JH
747=head1 Memory Management
748
a02a5408 749=for apidoc Am|void|Newx|void* ptr|int nitems|type
954c1994
GS
750The XSUB-writer's interface to the C C<malloc> function.
751
c5008215
JC
752In 5.9.3, Newx() and friends replace the older New() API, and drops
753the first parameter, I<x>, a debug aid which allowed callers to identify
37b8b4c9 754themselves. This aid has been superseded by a new build option,
c5008215
JC
755PERL_MEM_LOG (see L<perlhack/PERL_MEM_LOG>). The older API is still
756there for use in XS modules supporting older perls.
757
a02a5408 758=for apidoc Am|void|Newxc|void* ptr|int nitems|type|cast
954c1994 759The XSUB-writer's interface to the C C<malloc> function, with
c5008215 760cast. See also C<Newx>.
954c1994 761
a02a5408 762=for apidoc Am|void|Newxz|void* ptr|int nitems|type
954c1994 763The XSUB-writer's interface to the C C<malloc> function. The allocated
c5008215 764memory is zeroed with C<memzero>. See also C<Newx>.
a02a5408 765
954c1994
GS
766=for apidoc Am|void|Renew|void* ptr|int nitems|type
767The XSUB-writer's interface to the C C<realloc> function.
768
769=for apidoc Am|void|Renewc|void* ptr|int nitems|type|cast
770The XSUB-writer's interface to the C C<realloc> function, with
771cast.
772
49b8b560 773=for apidoc Am|void|Safefree|void* ptr
954c1994
GS
774The XSUB-writer's interface to the C C<free> function.
775
776=for apidoc Am|void|Move|void* src|void* dest|int nitems|type
777The XSUB-writer's interface to the C C<memmove> function. The C<src> is the
778source, C<dest> is the destination, C<nitems> is the number of items, and C<type> is
779the type. Can do overlapping moves. See also C<Copy>.
780
e90e2364
NC
781=for apidoc Am|void *|MoveD|void* src|void* dest|int nitems|type
782Like C<Move> but returns dest. Useful for encouraging compilers to tail-call
783optimise.
784
954c1994
GS
785=for apidoc Am|void|Copy|void* src|void* dest|int nitems|type
786The XSUB-writer's interface to the C C<memcpy> function. The C<src> is the
787source, C<dest> is the destination, C<nitems> is the number of items, and C<type> is
788the type. May fail on overlapping copies. See also C<Move>.
789
e90e2364
NC
790=for apidoc Am|void *|CopyD|void* src|void* dest|int nitems|type
791
792Like C<Copy> but returns dest. Useful for encouraging compilers to tail-call
793optimise.
794
954c1994
GS
795=for apidoc Am|void|Zero|void* dest|int nitems|type
796
797The XSUB-writer's interface to the C C<memzero> function. The C<dest> is the
798destination, C<nitems> is the number of items, and C<type> is the type.
799
e90e2364
NC
800=for apidoc Am|void *|ZeroD|void* dest|int nitems|type
801
802Like C<Zero> but returns dest. Useful for encouraging compilers to tail-call
803optimise.
804
954c1994 805=for apidoc Am|void|StructCopy|type src|type dest|type
4375e838 806This is an architecture-independent macro to copy one structure to another.
954c1994 807
7e337ee0
JH
808=for apidoc Am|void|PoisonWith|void* dest|int nitems|type|U8 byte
809
810Fill up memory with a byte pattern (a byte repeated over and over
811again) that hopefully catches attempts to access uninitialized memory.
812
813=for apidoc Am|void|PoisonNew|void* dest|int nitems|type
814
815PoisonWith(0xAB) for catching access to allocated but uninitialized memory.
816
1c12ffb4 817=for apidoc Am|void|PoisonFree|void* dest|int nitems|type
7e337ee0
JH
818
819PoisonWith(0xEF) for catching access to freed memory.
820
9965345d
JH
821=for apidoc Am|void|Poison|void* dest|int nitems|type
822
7e337ee0 823PoisonWith(0xEF) for catching access to freed memory.
9965345d
JH
824
825=cut */
954c1994 826
561b68a9
SH
827/* Maintained for backwards-compatibility only. Use newSV() instead. */
828#ifndef PERL_CORE
ff06c60c 829#define NEWSV(x,len) newSV(len)
561b68a9 830#endif
ff06c60c 831
19a94d75
JH
832#define MEM_SIZE_MAX ((MEM_SIZE)~0)
833
2720f793
JH
834/* The +0.0 in MEM_WRAP_CHECK_ is an attempt to foil
835 * overly eager compilers that will bleat about e.g.
836 * (U16)n > (size_t)~0/sizeof(U16) always being false. */
27d5b266 837#ifdef PERL_MALLOC_WRAP
fabdb6c0 838#define MEM_WRAP_CHECK(n,t) MEM_WRAP_CHECK_1(n,t,PL_memory_wrap)
27d5b266 839#define MEM_WRAP_CHECK_1(n,t,a) \
f1f66076 840 (void)(sizeof(t) > 1 && ((MEM_SIZE)(n)+0.0) > MEM_SIZE_MAX/sizeof(t) && (Perl_croak_nocontext("%s",(a)),0))
8b44ba4c 841#define MEM_WRAP_CHECK_(n,t) MEM_WRAP_CHECK(n,t),
27d5b266 842
f1f66076 843#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)))
1936d2a7 844
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JH
845#else
846
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NC
847#define MEM_WRAP_CHECK(n,t)
848#define MEM_WRAP_CHECK_1(n,t,a)
849#define MEM_WRAP_CHECK_2(n,t,a,b)
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NC
850#define MEM_WRAP_CHECK_(n,t)
851
6fff79ce 852#define PERL_STRLEN_ROUNDUP(n) (((n-1+PERL_STRLEN_ROUNDUP_QUANTUM)&~((MEM_SIZE)PERL_STRLEN_ROUNDUP_QUANTUM-1)))
27d5b266 853
1936d2a7 854#endif
8b44ba4c 855
fe4f188c 856#ifdef PERL_MEM_LOG
46c6c7e2 857/*
9f653bb5 858 * If PERL_MEM_LOG is defined, all Newx()s, Renew()s, and Safefree()s
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859 * go through functions, which are handy for debugging breakpoints, but
860 * which more importantly get the immediate calling environment (file and
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JH
861 * line number, and C function name if available) passed in. This info can
862 * then be used for logging the calls, for which one gets a sample
73d1d973 863 * implementation unless -DPERL_MEM_LOG_NOIMPL is also defined.
3609ea0d 864 *
46c6c7e2 865 * Known problems:
94e892a6 866 * - not all memory allocs get logged, only those
46c6c7e2 867 * that go through Newx() and derivatives (while all
94e892a6 868 * Safefrees do get logged)
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JH
869 * - __FILE__ and __LINE__ do not work everywhere
870 * - __func__ or __FUNCTION__ even less so
871 * - I think more goes on after the perlio frees but
872 * the thing is that STDERR gets closed (as do all
873 * the file descriptors)
874 * - no deeper calling stack than the caller of the Newx()
875 * or the kind, but do I look like a C reflection/introspection
876 * utility to you?
877 * - the function prototypes for the logging functions
878 * probably should maybe be somewhere else than handy.h
879 * - one could consider inlining (macrofying) the logging
880 * for speed, but I am too lazy
881 * - one could imagine recording the allocations in a hash,
882 * (keyed by the allocation address?), and maintain that
883 * through reallocs and frees, but how to do that without
884 * any News() happening...?
73d1d973 885 * - lots of -Ddefines to get useful/controllable output
b953482e 886 * - lots of ENV reads
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JH
887 */
888
12754f92 889PERL_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);
46c6c7e2 890
12754f92 891PERL_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);
46c6c7e2 892
12754f92 893PERL_EXPORT_C Malloc_t Perl_mem_log_free(Malloc_t oldalloc, const char *filename, const int linenumber, const char *funcname);
46c6c7e2 894
0b0ab801 895# ifdef PERL_CORE
73d1d973 896# ifndef PERL_MEM_LOG_NOIMPL
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897enum mem_log_type {
898 MLT_ALLOC,
899 MLT_REALLOC,
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900 MLT_FREE,
901 MLT_NEW_SV,
902 MLT_DEL_SV
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903};
904# endif
12754f92 905# if defined(PERL_IN_SV_C) /* those are only used in sv.c */
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906void Perl_mem_log_new_sv(const SV *sv, const char *filename, const int linenumber, const char *funcname);
907void Perl_mem_log_del_sv(const SV *sv, const char *filename, const int linenumber, const char *funcname);
12754f92 908# endif
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909# endif
910
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911#endif
912
913#ifdef PERL_MEM_LOG
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914#define MEM_LOG_ALLOC(n,t,a) Perl_mem_log_alloc(n,sizeof(t),STRINGIFY(t),a,__FILE__,__LINE__,FUNCTION__)
915#define MEM_LOG_REALLOC(n,t,v,a) Perl_mem_log_realloc(n,sizeof(t),STRINGIFY(t),v,a,__FILE__,__LINE__,FUNCTION__)
46c6c7e2 916#define MEM_LOG_FREE(a) Perl_mem_log_free(a,__FILE__,__LINE__,FUNCTION__)
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917#endif
918
919#ifndef MEM_LOG_ALLOC
920#define MEM_LOG_ALLOC(n,t,a) (a)
921#endif
922#ifndef MEM_LOG_REALLOC
923#define MEM_LOG_REALLOC(n,t,v,a) (a)
924#endif
925#ifndef MEM_LOG_FREE
926#define MEM_LOG_FREE(a) (a)
927#endif
928
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929#define Newx(v,n,t) (v = (MEM_WRAP_CHECK_(n,t) (t*)MEM_LOG_ALLOC(n,t,safemalloc((MEM_SIZE)((n)*sizeof(t))))))
930#define Newxc(v,n,t,c) (v = (MEM_WRAP_CHECK_(n,t) (c*)MEM_LOG_ALLOC(n,t,safemalloc((MEM_SIZE)((n)*sizeof(t))))))
931#define Newxz(v,n,t) (v = (MEM_WRAP_CHECK_(n,t) (t*)MEM_LOG_ALLOC(n,t,safecalloc((n),sizeof(t)))))
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932
933#ifndef PERL_CORE
a02a5408
JC
934/* pre 5.9.x compatibility */
935#define New(x,v,n,t) Newx(v,n,t)
936#define Newc(x,v,n,t,c) Newxc(v,n,t,c)
4541904d 937#define Newz(x,v,n,t) Newxz(v,n,t)
a6f6820f 938#endif
a02a5408 939
ff68c719 940#define Renew(v,n,t) \
d1401ee9 941 (v = (MEM_WRAP_CHECK_(n,t) (t*)MEM_LOG_REALLOC(n,t,v,saferealloc((Malloc_t)(v),(MEM_SIZE)((n)*sizeof(t))))))
ff68c719 942#define Renewc(v,n,t,c) \
d1401ee9 943 (v = (MEM_WRAP_CHECK_(n,t) (c*)MEM_LOG_REALLOC(n,t,v,saferealloc((Malloc_t)(v),(MEM_SIZE)((n)*sizeof(t))))))
94010e71
NC
944
945#ifdef PERL_POISON
946#define Safefree(d) \
06c0cc96 947 ((d) ? (void)(safefree(MEM_LOG_FREE((Malloc_t)(d))), Poison(&(d), 1, Malloc_t)) : (void) 0)
94010e71 948#else
fe4f188c 949#define Safefree(d) safefree(MEM_LOG_FREE((Malloc_t)(d)))
94010e71 950#endif
55497cff 951
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NC
952#define Move(s,d,n,t) (MEM_WRAP_CHECK_(n,t) (void)memmove((char*)(d),(const char*)(s), (n) * sizeof(t)))
953#define Copy(s,d,n,t) (MEM_WRAP_CHECK_(n,t) (void)memcpy((char*)(d),(const char*)(s), (n) * sizeof(t)))
954#define Zero(d,n,t) (MEM_WRAP_CHECK_(n,t) (void)memzero((char*)(d), (n) * sizeof(t)))
55497cff 955
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956#define MoveD(s,d,n,t) (MEM_WRAP_CHECK_(n,t) memmove((char*)(d),(const char*)(s), (n) * sizeof(t)))
957#define CopyD(s,d,n,t) (MEM_WRAP_CHECK_(n,t) memcpy((char*)(d),(const char*)(s), (n) * sizeof(t)))
e90e2364 958#ifdef HAS_MEMSET
8b44ba4c 959#define ZeroD(d,n,t) (MEM_WRAP_CHECK_(n,t) memzero((char*)(d), (n) * sizeof(t)))
e90e2364 960#else
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NC
961/* Using bzero(), which returns void. */
962#define ZeroD(d,n,t) (MEM_WRAP_CHECK_(n,t) memzero((char*)(d), (n) * sizeof(t)),d)
e90e2364
NC
963#endif
964
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JH
965#define PoisonWith(d,n,t,b) (MEM_WRAP_CHECK_(n,t) (void)memset((char*)(d), (U8)(b), (n) * sizeof(t)))
966#define PoisonNew(d,n,t) PoisonWith(d,n,t,0xAB)
967#define PoisonFree(d,n,t) PoisonWith(d,n,t,0xEF)
968#define Poison(d,n,t) PoisonFree(d,n,t)
27d5b266 969
2304df62 970#ifdef USE_STRUCT_COPY
ff68c719 971#define StructCopy(s,d,t) (*((t*)(d)) = *((t*)(s)))
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972#else
973#define StructCopy(s,d,t) Copy(s,d,1,t)
974#endif
2cc61e15 975
622913ab 976#define C_ARRAY_LENGTH(a) (sizeof(a)/sizeof((a)[0]))
cd431fde 977#define C_ARRAY_END(a) (a) + (sizeof(a)/sizeof((a)[0]))
622913ab 978
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DD
979#ifdef NEED_VA_COPY
980# ifdef va_copy
981# define Perl_va_copy(s, d) va_copy(d, s)
2cc61e15 982# else
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983# if defined(__va_copy)
984# define Perl_va_copy(s, d) __va_copy(d, s)
985# else
986# define Perl_va_copy(s, d) Copy(s, d, 1, va_list)
987# endif
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988# endif
989#endif
990
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991/* convenience debug macros */
992#ifdef USE_ITHREADS
993#define pTHX_FORMAT "Perl interpreter: 0x%p"
994#define pTHX__FORMAT ", Perl interpreter: 0x%p"
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995#define pTHX_VALUE_ (void *)my_perl,
996#define pTHX_VALUE (void *)my_perl
997#define pTHX__VALUE_ ,(void *)my_perl,
998#define pTHX__VALUE ,(void *)my_perl
472d47bc 999#else
3609ea0d 1000#define pTHX_FORMAT
472d47bc 1001#define pTHX__FORMAT
3609ea0d 1002#define pTHX_VALUE_
472d47bc 1003#define pTHX_VALUE
3609ea0d 1004#define pTHX__VALUE_
472d47bc
SB
1005#define pTHX__VALUE
1006#endif /* USE_ITHREADS */
3609ea0d 1007
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1008/* Perl_deprecate was not part of the public API, and did not have a deprecate()
1009 shortcut macro defined without -DPERL_CORE. Neither codesearch.google.com nor
1010 CPAN::Unpack show any users outside the core. */
1011#ifdef PERL_CORE
d1d15184 1012# define deprecate(s) Perl_ck_warner_d(aTHX_ packWARN(WARN_DEPRECATED), "Use of " s " is deprecated")
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NC
1013#endif
1014
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MHM
1015/*
1016 * Local variables:
1017 * c-indentation-style: bsd
1018 * c-basic-offset: 4
1019 * indent-tabs-mode: t
1020 * End:
1021 *
1022 * ex: set ts=8 sts=4 sw=4 noet:
1023 */