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a0d0e21e 1/* handy.h
a687059c 2 *
e6906430 3 * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1999,
2c351e65 4 * 2000, 2001, 2002, 2004, 2005, 2006, by Larry Wall and others
a687059c 5 *
6e21c824
LW
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
LW
9 */
10
85e6fe83 11#if !defined(__STDC__)
378cc40b
LW
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
85e6fe83
LW
20#endif
21
378cc40b 22#define Null(type) ((type)NULL)
954c1994
GS
23
24/*
ccfc67b7 25=head1 Handy Values
954c1994 26
84a61f45 27=for apidoc AmU||Nullch
ccfc67b7 28Null character pointer.
68da2b4b 29
954c1994
GS
30=for apidoc AmU||Nullsv
31Null SV pointer.
32
33=cut
34*/
35
8d063cd8 36#define Nullch Null(char*)
760ac839 37#define Nullfp Null(PerlIO*)
79072805 38#define Nullsv Null(SV*)
8d063cd8 39
641d3f0b
PP
40#ifdef TRUE
41#undef TRUE
42#endif
43#ifdef FALSE
44#undef FALSE
45#endif
46#define TRUE (1)
47#define FALSE (0)
48
27d4fb96
PP
49
50/* XXX Configure ought to have a test for a boolean type, if I can
51 just figure out all the headers such a test needs.
52 Andy Dougherty August 1996
53*/
8e84507e 54/* bool is built-in for g++-2.6.3 and later, which might be used
c1d22f6b
GS
55 for extensions. <_G_config.h> defines _G_HAVE_BOOL, but we can't
56 be sure _G_config.h will be included before this file. _G_config.h
8e84507e 57 also defines _G_HAVE_BOOL for both gcc and g++, but only g++
c1d22f6b
GS
58 actually has bool. Hence, _G_HAVE_BOOL is pretty useless for us.
59 g++ can be identified by __GNUG__.
60 Andy Dougherty February 2000
5d94fbed 61*/
84a61f45 62#ifdef __GNUG__ /* GNU g++ has bool built-in */
5d94fbed 63# ifndef HAS_BOOL
c1d22f6b 64# define HAS_BOOL 1
5d94fbed 65# endif
5d94fbed
AD
66#endif
67
641d3f0b
PP
68/* The NeXT dynamic loader headers will not build with the bool macro
69 So declare them now to clear confusion.
70*/
8f1f23e8 71#if defined(NeXT) || defined(__NeXT__)
641d3f0b
PP
72# undef FALSE
73# undef TRUE
74 typedef enum bool { FALSE = 0, TRUE = 1 } bool;
75# define ENUM_BOOL 1
76# ifndef HAS_BOOL
77# define HAS_BOOL 1
78# endif /* !HAS_BOOL */
8f1f23e8 79#endif /* NeXT || __NeXT__ */
641d3f0b 80
5d94fbed 81#ifndef HAS_BOOL
61bb5906 82# if defined(UTS) || defined(VMS)
5d94fbed
AD
83# define bool int
84# else
85# define bool char
86# endif
c1d22f6b 87# define HAS_BOOL 1
a687059c 88#endif
0d3e774c 89
cf011bf2
NC
90/* Try to figure out __func__ or __FUNCTION__ equivalent, if any.
91 * XXX Should really be a Configure probe, with HAS__FUNCTION__
92 * and FUNCTION__ as results.
93 * XXX Similarly, a Configure probe for __FILE__ and __LINE__ is needed. */
94#if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || (defined(__SUNPRO_C)) /* C99 or close enough. */
95# define FUNCTION__ __func__
96#else
97# if (defined(_MSC_VER) && _MSC_VER < 1300) || /* Pre-MSVC 7.0 has neither __func__ nor __FUNCTION and no good workarounds, either. */ \
c5046a61 98 (defined(__DECC_VER)) /* Tru64 or VMS, and strict C89 being used. */
cf011bf2
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99# define FUNCTION__ ""
100# else
101# define FUNCTION__ __FUNCTION__ /* Common extension. */
102# endif
103#endif
104
27d4fb96
PP
105/* XXX A note on the perl source internal type system. The
106 original intent was that I32 be *exactly* 32 bits.
107
108 Currently, we only guarantee that I32 is *at least* 32 bits.
109 Specifically, if int is 64 bits, then so is I32. (This is the case
110 for the Cray.) This has the advantage of meshing nicely with
111 standard library calls (where we pass an I32 and the library is
112 expecting an int), but the disadvantage that an I32 is not 32 bits.
113 Andy Dougherty August 1996
24fef2a7 114
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115 There is no guarantee that there is *any* integral type with
116 exactly 32 bits. It is perfectly legal for a system to have
117 sizeof(short) == sizeof(int) == sizeof(long) == 8.
693762b4 118
dc45a647
MB
119 Similarly, there is no guarantee that I16 and U16 have exactly 16
120 bits.
693762b4 121
8e84507e
NIS
122 For dealing with issues that may arise from various 32/64-bit
123 systems, we will ask Configure to check out
8175356b 124
84a61f45
JH
125 SHORTSIZE == sizeof(short)
126 INTSIZE == sizeof(int)
127 LONGSIZE == sizeof(long)
dc45a647 128 LONGLONGSIZE == sizeof(long long) (if HAS_LONG_LONG)
84a61f45 129 PTRSIZE == sizeof(void *)
dc45a647
MB
130 DOUBLESIZE == sizeof(double)
131 LONG_DOUBLESIZE == sizeof(long double) (if HAS_LONG_DOUBLE).
8175356b 132
27d4fb96
PP
133*/
134
69512466
JH
135#ifdef I_INTTYPES /* e.g. Linux has int64_t without <inttypes.h> */
136# include <inttypes.h>
dd0eed91
JH
137# ifdef INT32_MIN_BROKEN
138# undef INT32_MIN
139# define INT32_MIN (-2147483647-1)
140# endif
141# ifdef INT64_MIN_BROKEN
142# undef INT64_MIN
143# define INT64_MIN (-9223372036854775807LL-1)
144# endif
69512466
JH
145#endif
146
8175356b
JH
147typedef I8TYPE I8;
148typedef U8TYPE U8;
149typedef I16TYPE I16;
150typedef U16TYPE U16;
151typedef I32TYPE I32;
152typedef U32TYPE U32;
6b8eaf93
JH
153#ifdef PERL_CORE
154# ifdef HAS_QUAD
8175356b
JH
155typedef I64TYPE I64;
156typedef U64TYPE U64;
6b8eaf93
JH
157# endif
158#endif /* PERL_CORE */
8175356b 159
69512466
JH
160#if defined(HAS_QUAD) && defined(USE_64_BIT_INT)
161# ifndef UINT64_C /* usually from <inttypes.h> */
162# if defined(HAS_LONG_LONG) && QUADKIND == QUAD_IS_LONG_LONG
163# define INT64_C(c) CAT2(c,LL)
164# define UINT64_C(c) CAT2(c,ULL)
165# else
166# if LONGSIZE == 8 && QUADKIND == QUAD_IS_LONG
167# define INT64_C(c) CAT2(c,L)
168# define UINT64_C(c) CAT2(c,UL)
169# else
170# define INT64_C(c) ((I64TYPE)(c))
171# define UINT64_C(c) ((U64TYPE)(c))
172# endif
173# endif
e8c95190
JH
174# endif
175#endif
84baed4c 176
31ab2e0d 177/* HMB H.Merijn Brand - a placeholder for preparing Configure patches */
06f2062a 178#if defined(HAS_MALLOC_SIZE) && defined(HAS_MALLOC_GOOD_SIZE) && defined(HAS_CLEARENV)
31ab2e0d 179/* Not (yet) used at top level, but mention them for metaconfig */
84baed4c 180#endif
e8c95190 181
a22e52b9
JH
182/* Mention I8SIZE, U8SIZE, I16SIZE, U16SIZE, I32SIZE, U32SIZE,
183 I64SIZE, and U64SIZE here so that metaconfig pulls them in. */
184
d8668976 185#if defined(UINT8_MAX) && defined(INT16_MAX) && defined(INT32_MAX)
5ff3f7a4 186
5ff3f7a4
GS
187/* I8_MAX and I8_MIN constants are not defined, as I8 is an ambiguous type.
188 Please search CHAR_MAX in perl.h for further details. */
189#define U8_MAX UINT8_MAX
190#define U8_MIN UINT8_MIN
191
5ff3f7a4
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192#define I16_MAX INT16_MAX
193#define I16_MIN INT16_MIN
194#define U16_MAX UINT16_MAX
195#define U16_MIN UINT16_MIN
196
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197#define I32_MAX INT32_MAX
198#define I32_MIN INT32_MIN
0e983133
GS
199#ifndef UINT32_MAX_BROKEN /* e.g. HP-UX with gcc messes this up */
200# define U32_MAX UINT32_MAX
201#else
202# define U32_MAX 4294967295U
203#endif
5ff3f7a4
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204#define U32_MIN UINT32_MIN
205
206#else
207
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208/* I8_MAX and I8_MIN constants are not defined, as I8 is an ambiguous type.
209 Please search CHAR_MAX in perl.h for further details. */
27d4fb96
PP
210#define U8_MAX PERL_UCHAR_MAX
211#define U8_MIN PERL_UCHAR_MIN
79072805 212
27d4fb96
PP
213#define I16_MAX PERL_SHORT_MAX
214#define I16_MIN PERL_SHORT_MIN
215#define U16_MAX PERL_USHORT_MAX
216#define U16_MIN PERL_USHORT_MIN
79072805 217
c4f23d77 218#if LONGSIZE > 4
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PP
219# define I32_MAX PERL_INT_MAX
220# define I32_MIN PERL_INT_MIN
221# define U32_MAX PERL_UINT_MAX
222# define U32_MIN PERL_UINT_MIN
79072805 223#else
27d4fb96
PP
224# define I32_MAX PERL_LONG_MAX
225# define I32_MIN PERL_LONG_MIN
226# define U32_MAX PERL_ULONG_MAX
227# define U32_MIN PERL_ULONG_MIN
79072805
LW
228#endif
229
5ff3f7a4
GS
230#endif
231
58a9a5d5 232/* log(2) is pretty close to 0.30103, just in case anyone is grepping for it */
fc36a67e
PP
233#define BIT_DIGITS(N) (((N)*146)/485 + 1) /* log2(10) =~ 146/485 */
234#define TYPE_DIGITS(T) BIT_DIGITS(sizeof(T) * 8)
235#define TYPE_CHARS(T) (TYPE_DIGITS(T) + 2) /* sign, NUL */
236
ff68c719 237#define Ctl(ch) ((ch) & 037)
8d063cd8 238
d7559646
AL
239/* concatenating with "" ensures that only literal strings are accepted as argument */
240#define STR_WITH_LEN(s) (s ""), (sizeof(s)-1)
241
242/* note that STR_WITH_LEN() can't be used as argument to macros or functions that
243 * under some configurations might be macros, which means that it requires the full
244 * Perl_xxx(aTHX_ ...) form for any API calls where it's used.
245 */
246
247/* STR_WITH_LEN() shortcuts */
248#define newSVpvs(str) Perl_newSVpvn(aTHX_ STR_WITH_LEN(str))
249#define newSVpvs_share(str) Perl_newSVpvn_share(aTHX_ STR_WITH_LEN(str), 0)
250#define sv_catpvs(sv, str) Perl_sv_catpvn_flags(aTHX_ sv, STR_WITH_LEN(str), SV_GMAGIC)
251#define savepvs(str) Perl_savepvn(aTHX_ STR_WITH_LEN(str))
252#define gv_stashpvs(str, create) Perl_gv_stashpvn(aTHX_ STR_WITH_LEN(str), create)
b977d03a 253#define gv_fetchpvs(namebeg, add, sv_type) Perl_gv_fetchpvn_flags(aTHX_ STR_WITH_LEN(namebeg), add, sv_type)
d7559646
AL
254#define hv_fetchs(hv,key,lval) Perl_hv_fetch(aTHX_ hv, STR_WITH_LEN(key), lval)
255
b977d03a 256
954c1994 257/*
ccfc67b7
JH
258=head1 Miscellaneous Functions
259
954c1994
GS
260=for apidoc Am|bool|strNE|char* s1|char* s2
261Test two strings to see if they are different. Returns true or
262false.
263
264=for apidoc Am|bool|strEQ|char* s1|char* s2
265Test two strings to see if they are equal. Returns true or false.
266
267=for apidoc Am|bool|strLT|char* s1|char* s2
268Test two strings to see if the first, C<s1>, is less than the second,
269C<s2>. Returns true or false.
270
271=for apidoc Am|bool|strLE|char* s1|char* s2
272Test two strings to see if the first, C<s1>, is less than or equal to the
273second, C<s2>. Returns true or false.
274
275=for apidoc Am|bool|strGT|char* s1|char* s2
276Test two strings to see if the first, C<s1>, is greater than the second,
277C<s2>. Returns true or false.
278
279=for apidoc Am|bool|strGE|char* s1|char* s2
280Test two strings to see if the first, C<s1>, is greater than or equal to
281the second, C<s2>. Returns true or false.
282
283=for apidoc Am|bool|strnNE|char* s1|char* s2|STRLEN len
284Test two strings to see if they are different. The C<len> parameter
285indicates the number of bytes to compare. Returns true or false. (A
286wrapper for C<strncmp>).
287
288=for apidoc Am|bool|strnEQ|char* s1|char* s2|STRLEN len
289Test two strings to see if they are equal. The C<len> parameter indicates
290the number of bytes to compare. Returns true or false. (A wrapper for
291C<strncmp>).
292
293=cut
294*/
295
8d063cd8
LW
296#define strNE(s1,s2) (strcmp(s1,s2))
297#define strEQ(s1,s2) (!strcmp(s1,s2))
298#define strLT(s1,s2) (strcmp(s1,s2) < 0)
299#define strLE(s1,s2) (strcmp(s1,s2) <= 0)
300#define strGT(s1,s2) (strcmp(s1,s2) > 0)
301#define strGE(s1,s2) (strcmp(s1,s2) >= 0)
302#define strnNE(s1,s2,l) (strncmp(s1,s2,l))
303#define strnEQ(s1,s2,l) (!strncmp(s1,s2,l))
378cc40b 304
36477c24
PP
305#ifdef HAS_MEMCMP
306# define memNE(s1,s2,l) (memcmp(s1,s2,l))
307# define memEQ(s1,s2,l) (!memcmp(s1,s2,l))
308#else
309# define memNE(s1,s2,l) (bcmp(s1,s2,l))
310# define memEQ(s1,s2,l) (!bcmp(s1,s2,l))
311#endif
312
bbce6d69
PP
313/*
314 * Character classes.
315 *
316 * Unfortunately, the introduction of locales means that we
317 * can't trust isupper(), etc. to tell the truth. And when
318 * it comes to /\w+/ with tainting enabled, we *must* be able
319 * to trust our character classes.
320 *
321 * Therefore, the default tests in the text of Perl will be
322 * independent of locale. Any code that wants to depend on
323 * the current locale will use the tests that begin with "lc".
324 */
325
2304df62
AD
326#ifdef HAS_SETLOCALE /* XXX Is there a better test for this? */
327# ifndef CTYPE256
328# define CTYPE256
329# endif
330#endif
331
954c1994 332/*
ccfc67b7
JH
333
334=head1 Character classes
335
954c1994 336=for apidoc Am|bool|isALNUM|char ch
4375e838 337Returns a boolean indicating whether the C C<char> is an ASCII alphanumeric
f1cbbd6e 338character (including underscore) or digit.
954c1994
GS
339
340=for apidoc Am|bool|isALPHA|char ch
4375e838 341Returns a boolean indicating whether the C C<char> is an ASCII alphabetic
954c1994
GS
342character.
343
344=for apidoc Am|bool|isSPACE|char ch
345Returns a boolean indicating whether the C C<char> is whitespace.
346
347=for apidoc Am|bool|isDIGIT|char ch
4375e838 348Returns a boolean indicating whether the C C<char> is an ASCII
954c1994
GS
349digit.
350
351=for apidoc Am|bool|isUPPER|char ch
352Returns a boolean indicating whether the C C<char> is an uppercase
353character.
354
355=for apidoc Am|bool|isLOWER|char ch
356Returns a boolean indicating whether the C C<char> is a lowercase
357character.
358
359=for apidoc Am|char|toUPPER|char ch
360Converts the specified character to uppercase.
361
362=for apidoc Am|char|toLOWER|char ch
363Converts the specified character to lowercase.
364
365=cut
366*/
367
bbce6d69
PP
368#define isALNUM(c) (isALPHA(c) || isDIGIT(c) || (c) == '_')
369#define isIDFIRST(c) (isALPHA(c) || (c) == '_')
370#define isALPHA(c) (isUPPER(c) || isLOWER(c))
371#define isSPACE(c) \
372 ((c) == ' ' || (c) == '\t' || (c) == '\n' || (c) =='\r' || (c) == '\f')
aaa51d5e
JF
373#define isPSXSPC(c) (isSPACE(c) || (c) == '\v')
374#define isBLANK(c) ((c) == ' ' || (c) == '\t')
bbce6d69 375#define isDIGIT(c) ((c) >= '0' && (c) <= '9')
9d116dd7
JH
376#ifdef EBCDIC
377 /* In EBCDIC we do not do locales: therefore() isupper() is fine. */
378# define isUPPER(c) isupper(c)
379# define isLOWER(c) islower(c)
b8c5462f
JH
380# define isALNUMC(c) isalnum(c)
381# define isASCII(c) isascii(c)
382# define isCNTRL(c) iscntrl(c)
383# define isGRAPH(c) isgraph(c)
9d116dd7 384# define isPRINT(c) isprint(c)
b8c5462f
JH
385# define isPUNCT(c) ispunct(c)
386# define isXDIGIT(c) isxdigit(c)
9d116dd7
JH
387# define toUPPER(c) toupper(c)
388# define toLOWER(c) tolower(c)
389#else
390# define isUPPER(c) ((c) >= 'A' && (c) <= 'Z')
391# define isLOWER(c) ((c) >= 'a' && (c) <= 'z')
b8c5462f
JH
392# define isALNUMC(c) (isALPHA(c) || isDIGIT(c))
393# define isASCII(c) ((c) <= 127)
7be5a6cf 394# define isCNTRL(c) ((c) < ' ' || (c) == 127)
b8c5462f 395# define isGRAPH(c) (isALNUM(c) || isPUNCT(c))
f79b3095 396# define isPRINT(c) (((c) > 32 && (c) < 127) || (c) == ' ')
b8c5462f 397# define isPUNCT(c) (((c) >= 33 && (c) <= 47) || ((c) >= 58 && (c) <= 64) || ((c) >= 91 && (c) <= 96) || ((c) >= 123 && (c) <= 126))
b8dc47b4 398# define isXDIGIT(c) (isDIGIT(c) || ((c) >= 'a' && (c) <= 'f') || ((c) >= 'A' && (c) <= 'F'))
9d116dd7
JH
399# define toUPPER(c) (isLOWER(c) ? (c) - ('a' - 'A') : (c))
400# define toLOWER(c) (isUPPER(c) ? (c) + ('a' - 'A') : (c))
401#endif
bbce6d69
PP
402
403#ifdef USE_NEXT_CTYPE
404
405# define isALNUM_LC(c) \
37bd1396 406 (NXIsAlNum((unsigned int)(c)) || (char)(c) == '_')
ff68c719
PP
407# define isIDFIRST_LC(c) \
408 (NXIsAlpha((unsigned int)(c)) || (char)(c) == '_')
409# define isALPHA_LC(c) NXIsAlpha((unsigned int)(c))
410# define isSPACE_LC(c) NXIsSpace((unsigned int)(c))
411# define isDIGIT_LC(c) NXIsDigit((unsigned int)(c))
412# define isUPPER_LC(c) NXIsUpper((unsigned int)(c))
413# define isLOWER_LC(c) NXIsLower((unsigned int)(c))
37bd1396 414# define isALNUMC_LC(c) NXIsAlNum((unsigned int)(c))
b8c5462f
JH
415# define isCNTRL_LC(c) NXIsCntrl((unsigned int)(c))
416# define isGRAPH_LC(c) NXIsGraph((unsigned int)(c))
ff68c719 417# define isPRINT_LC(c) NXIsPrint((unsigned int)(c))
b8c5462f 418# define isPUNCT_LC(c) NXIsPunct((unsigned int)(c))
ff68c719
PP
419# define toUPPER_LC(c) NXToUpper((unsigned int)(c))
420# define toLOWER_LC(c) NXToLower((unsigned int)(c))
bbce6d69
PP
421
422#else /* !USE_NEXT_CTYPE */
b8c5462f 423
bbce6d69
PP
424# if defined(CTYPE256) || (!defined(isascii) && !defined(HAS_ISASCII))
425
b8c5462f 426# define isALNUM_LC(c) (isalnum((unsigned char)(c)) || (char)(c) == '_')
ff68c719 427# define isIDFIRST_LC(c) (isalpha((unsigned char)(c)) || (char)(c) == '_')
bbce6d69
PP
428# define isALPHA_LC(c) isalpha((unsigned char)(c))
429# define isSPACE_LC(c) isspace((unsigned char)(c))
430# define isDIGIT_LC(c) isdigit((unsigned char)(c))
431# define isUPPER_LC(c) isupper((unsigned char)(c))
432# define isLOWER_LC(c) islower((unsigned char)(c))
b8c5462f
JH
433# define isALNUMC_LC(c) isalnum((unsigned char)(c))
434# define isCNTRL_LC(c) iscntrl((unsigned char)(c))
435# define isGRAPH_LC(c) isgraph((unsigned char)(c))
bbce6d69 436# define isPRINT_LC(c) isprint((unsigned char)(c))
b8c5462f 437# define isPUNCT_LC(c) ispunct((unsigned char)(c))
bbce6d69
PP
438# define toUPPER_LC(c) toupper((unsigned char)(c))
439# define toLOWER_LC(c) tolower((unsigned char)(c))
440
441# else
442
84a61f45 443# define isALNUM_LC(c) (isascii(c) && (isalnum(c) || (c) == '_'))
bbce6d69
PP
444# define isIDFIRST_LC(c) (isascii(c) && (isalpha(c) || (c) == '_'))
445# define isALPHA_LC(c) (isascii(c) && isalpha(c))
446# define isSPACE_LC(c) (isascii(c) && isspace(c))
447# define isDIGIT_LC(c) (isascii(c) && isdigit(c))
448# define isUPPER_LC(c) (isascii(c) && isupper(c))
449# define isLOWER_LC(c) (isascii(c) && islower(c))
b8c5462f
JH
450# define isALNUMC_LC(c) (isascii(c) && isalnum(c))
451# define isCNTRL_LC(c) (isascii(c) && iscntrl(c))
452# define isGRAPH_LC(c) (isascii(c) && isgraph(c))
bbce6d69 453# define isPRINT_LC(c) (isascii(c) && isprint(c))
b8c5462f 454# define isPUNCT_LC(c) (isascii(c) && ispunct(c))
bbce6d69
PP
455# define toUPPER_LC(c) toupper(c)
456# define toLOWER_LC(c) tolower(c)
457
458# endif
a0d0e21e 459#endif /* USE_NEXT_CTYPE */
55204971 460
aaa51d5e
JF
461#define isPSXSPC_LC(c) (isSPACE_LC(c) || (c) == '\v')
462#define isBLANK_LC(c) isBLANK(c) /* could be wrong */
463
a0ed51b3
LW
464#define isALNUM_uni(c) is_uni_alnum(c)
465#define isIDFIRST_uni(c) is_uni_idfirst(c)
466#define isALPHA_uni(c) is_uni_alpha(c)
467#define isSPACE_uni(c) is_uni_space(c)
468#define isDIGIT_uni(c) is_uni_digit(c)
469#define isUPPER_uni(c) is_uni_upper(c)
470#define isLOWER_uni(c) is_uni_lower(c)
b8c5462f
JH
471#define isALNUMC_uni(c) is_uni_alnumc(c)
472#define isASCII_uni(c) is_uni_ascii(c)
473#define isCNTRL_uni(c) is_uni_cntrl(c)
474#define isGRAPH_uni(c) is_uni_graph(c)
a0ed51b3 475#define isPRINT_uni(c) is_uni_print(c)
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476#define isPUNCT_uni(c) is_uni_punct(c)
477#define isXDIGIT_uni(c) is_uni_xdigit(c)
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478#define toUPPER_uni(c,s,l) to_uni_upper(c,s,l)
479#define toTITLE_uni(c,s,l) to_uni_title(c,s,l)
480#define toLOWER_uni(c,s,l) to_uni_lower(c,s,l)
b8d68ded 481#define toFOLD_uni(c,s,l) to_uni_fold(c,s,l)
a0ed51b3 482
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483#define isPSXSPC_uni(c) (isSPACE_uni(c) ||(c) == '\f')
484#define isBLANK_uni(c) isBLANK(c) /* could be wrong */
485
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486#define isALNUM_LC_uvchr(c) (c < 256 ? isALNUM_LC(c) : is_uni_alnum_lc(c))
487#define isIDFIRST_LC_uvchr(c) (c < 256 ? isIDFIRST_LC(c) : is_uni_idfirst_lc(c))
488#define isALPHA_LC_uvchr(c) (c < 256 ? isALPHA_LC(c) : is_uni_alpha_lc(c))
489#define isSPACE_LC_uvchr(c) (c < 256 ? isSPACE_LC(c) : is_uni_space_lc(c))
490#define isDIGIT_LC_uvchr(c) (c < 256 ? isDIGIT_LC(c) : is_uni_digit_lc(c))
491#define isUPPER_LC_uvchr(c) (c < 256 ? isUPPER_LC(c) : is_uni_upper_lc(c))
492#define isLOWER_LC_uvchr(c) (c < 256 ? isLOWER_LC(c) : is_uni_lower_lc(c))
493#define isALNUMC_LC_uvchr(c) (c < 256 ? isALNUMC_LC(c) : is_uni_alnumc_lc(c))
494#define isCNTRL_LC_uvchr(c) (c < 256 ? isCNTRL_LC(c) : is_uni_cntrl_lc(c))
495#define isGRAPH_LC_uvchr(c) (c < 256 ? isGRAPH_LC(c) : is_uni_graph_lc(c))
496#define isPRINT_LC_uvchr(c) (c < 256 ? isPRINT_LC(c) : is_uni_print_lc(c))
497#define isPUNCT_LC_uvchr(c) (c < 256 ? isPUNCT_LC(c) : is_uni_punct_lc(c))
a0ed51b3 498
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499#define isPSXSPC_LC_uni(c) (isSPACE_LC_uni(c) ||(c) == '\f')
500#define isBLANK_LC_uni(c) isBLANK(c) /* could be wrong */
501
a0ed51b3 502#define isALNUM_utf8(p) is_utf8_alnum(p)
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503/* The ID_Start of Unicode is quite limiting: it assumes a L-class
504 * character (meaning that you cannot have, say, a CJK character).
505 * Instead, let's allow ID_Continue but not digits. */
506#define isIDFIRST_utf8(p) (is_utf8_idcont(p) && !is_utf8_digit(p))
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507#define isALPHA_utf8(p) is_utf8_alpha(p)
508#define isSPACE_utf8(p) is_utf8_space(p)
509#define isDIGIT_utf8(p) is_utf8_digit(p)
510#define isUPPER_utf8(p) is_utf8_upper(p)
511#define isLOWER_utf8(p) is_utf8_lower(p)
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512#define isALNUMC_utf8(p) is_utf8_alnumc(p)
513#define isASCII_utf8(p) is_utf8_ascii(p)
514#define isCNTRL_utf8(p) is_utf8_cntrl(p)
515#define isGRAPH_utf8(p) is_utf8_graph(p)
a0ed51b3 516#define isPRINT_utf8(p) is_utf8_print(p)
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517#define isPUNCT_utf8(p) is_utf8_punct(p)
518#define isXDIGIT_utf8(p) is_utf8_xdigit(p)
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519#define toUPPER_utf8(p,s,l) to_utf8_upper(p,s,l)
520#define toTITLE_utf8(p,s,l) to_utf8_title(p,s,l)
521#define toLOWER_utf8(p,s,l) to_utf8_lower(p,s,l)
a0ed51b3 522
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523#define isPSXSPC_utf8(c) (isSPACE_utf8(c) ||(c) == '\f')
524#define isBLANK_utf8(c) isBLANK(c) /* could be wrong */
525
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526#define isALNUM_LC_utf8(p) isALNUM_LC_uvchr(utf8_to_uvchr(p, 0))
527#define isIDFIRST_LC_utf8(p) isIDFIRST_LC_uvchr(utf8_to_uvchr(p, 0))
528#define isALPHA_LC_utf8(p) isALPHA_LC_uvchr(utf8_to_uvchr(p, 0))
529#define isSPACE_LC_utf8(p) isSPACE_LC_uvchr(utf8_to_uvchr(p, 0))
530#define isDIGIT_LC_utf8(p) isDIGIT_LC_uvchr(utf8_to_uvchr(p, 0))
531#define isUPPER_LC_utf8(p) isUPPER_LC_uvchr(utf8_to_uvchr(p, 0))
532#define isLOWER_LC_utf8(p) isLOWER_LC_uvchr(utf8_to_uvchr(p, 0))
533#define isALNUMC_LC_utf8(p) isALNUMC_LC_uvchr(utf8_to_uvchr(p, 0))
534#define isCNTRL_LC_utf8(p) isCNTRL_LC_uvchr(utf8_to_uvchr(p, 0))
535#define isGRAPH_LC_utf8(p) isGRAPH_LC_uvchr(utf8_to_uvchr(p, 0))
536#define isPRINT_LC_utf8(p) isPRINT_LC_uvchr(utf8_to_uvchr(p, 0))
537#define isPUNCT_LC_utf8(p) isPUNCT_LC_uvchr(utf8_to_uvchr(p, 0))
a0ed51b3 538
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539#define isPSXSPC_LC_utf8(c) (isSPACE_LC_utf8(c) ||(c) == '\f')
540#define isBLANK_LC_utf8(c) isBLANK(c) /* could be wrong */
541
9d116dd7 542#ifdef EBCDIC
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543# ifdef PERL_IMPLICIT_CONTEXT
544# define toCTRL(c) Perl_ebcdic_control(aTHX_ c)
545# else
546# define toCTRL Perl_ebcdic_control
547# endif
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548#else
549 /* This conversion works both ways, strangely enough. */
550# define toCTRL(c) (toUPPER(c) ^ 64)
551#endif
bbce6d69 552
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553/* Line numbers are unsigned, 32 bits. */
554typedef U32 line_t;
219ef941 555#define NOLINE ((line_t) 4294967295UL)
378cc40b 556
8c52afec 557
8e84507e 558/*
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559=head1 Memory Management
560
cd7a8267 561=for apidoc Am|void|Newx|void* ptr|int nitems|type
954c1994
GS
562The XSUB-writer's interface to the C C<malloc> function.
563
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564In 5.9.3, Newx() and friends replace the older New() API, and drops
565the first parameter, I<x>, a debug aid which allowed callers to identify
566themselves. This aid has been superceded by a new build option,
567PERL_MEM_LOG (see L<perlhack/PERL_MEM_LOG>). The older API is still
568there for use in XS modules supporting older perls.
569
cd7a8267 570=for apidoc Am|void|Newxc|void* ptr|int nitems|type|cast
954c1994 571The XSUB-writer's interface to the C C<malloc> function, with
c5046a61 572cast. See also C<Newx>.
954c1994 573
cd7a8267 574=for apidoc Am|void|Newxz|void* ptr|int nitems|type
954c1994 575The XSUB-writer's interface to the C C<malloc> function. The allocated
c5046a61 576memory is zeroed with C<memzero>. See also C<Newx>.
cd7a8267 577
954c1994
GS
578=for apidoc Am|void|Renew|void* ptr|int nitems|type
579The XSUB-writer's interface to the C C<realloc> function.
580
581=for apidoc Am|void|Renewc|void* ptr|int nitems|type|cast
582The XSUB-writer's interface to the C C<realloc> function, with
583cast.
584
49b8b560 585=for apidoc Am|void|Safefree|void* ptr
954c1994
GS
586The XSUB-writer's interface to the C C<free> function.
587
588=for apidoc Am|void|Move|void* src|void* dest|int nitems|type
589The XSUB-writer's interface to the C C<memmove> function. The C<src> is the
590source, C<dest> is the destination, C<nitems> is the number of items, and C<type> is
591the type. Can do overlapping moves. See also C<Copy>.
592
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593=for apidoc Am|void *|MoveD|void* src|void* dest|int nitems|type
594Like C<Move> but returns dest. Useful for encouraging compilers to tail-call
595optimise.
596
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597=for apidoc Am|void|Copy|void* src|void* dest|int nitems|type
598The XSUB-writer's interface to the C C<memcpy> function. The C<src> is the
599source, C<dest> is the destination, C<nitems> is the number of items, and C<type> is
600the type. May fail on overlapping copies. See also C<Move>.
601
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602=for apidoc Am|void *|CopyD|void* src|void* dest|int nitems|type
603
604Like C<Copy> but returns dest. Useful for encouraging compilers to tail-call
605optimise.
606
954c1994
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607=for apidoc Am|void|Zero|void* dest|int nitems|type
608
609The XSUB-writer's interface to the C C<memzero> function. The C<dest> is the
610destination, C<nitems> is the number of items, and C<type> is the type.
611
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612=for apidoc Am|void *|ZeroD|void* dest|int nitems|type
613
614Like C<Zero> but returns dest. Useful for encouraging compilers to tail-call
615optimise.
616
954c1994 617=for apidoc Am|void|StructCopy|type src|type dest|type
4375e838 618This is an architecture-independent macro to copy one structure to another.
954c1994 619
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620=for apidoc Am|void|Poison|void* dest|int nitems|type
621
622Fill up memory with a pattern (byte 0xAB over and over again) that
623hopefully catches attempts to access uninitialized memory.
624
625=cut */
954c1994 626
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627/* Maintained for backwards-compatibility only. Use newSV() instead. */
628#ifndef PERL_CORE
ff06c60c 629#define NEWSV(x,len) newSV(len)
133cdda0 630#endif
ff06c60c 631
1c6118a4 632#ifdef PERL_MALLOC_WRAP
ba6829d2 633#define MEM_WRAP_CHECK(n,t) MEM_WRAP_CHECK_1(n,t,PL_memory_wrap)
1c6118a4 634#define MEM_WRAP_CHECK_1(n,t,a) \
036946b1 635 (void)(sizeof(t) > 1 && (n) > ((MEM_SIZE)~0)/sizeof(t) && (Perl_croak_nocontext(a),0))
ea5389ca 636#define MEM_WRAP_CHECK_(n,t) MEM_WRAP_CHECK(n,t),
1c6118a4 637
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638#define PERL_STRLEN_ROUNDUP(n) ((void)(((n) > (MEM_SIZE)~0 - 2 * PERL_STRLEN_ROUNDUP_QUANTUM) ? (Perl_croak_nocontext(PL_memory_wrap),0):0),((n-1+PERL_STRLEN_ROUNDUP_QUANTUM)&~((MEM_SIZE)PERL_STRLEN_ROUNDUP_QUANTUM-1)))
639
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640#else
641
642#define MEM_WRAP_CHECK(n,t)
643#define MEM_WRAP_CHECK_1(n,t,a)
644#define MEM_WRAP_CHECK_2(n,t,a,b)
ea5389ca
NC
645#define MEM_WRAP_CHECK_(n,t)
646
9eaeeaca 647#define PERL_STRLEN_ROUNDUP(n) (((n-1+PERL_STRLEN_ROUNDUP_QUANTUM)&~((MEM_SIZE)PERL_STRLEN_ROUNDUP_QUANTUM-1)))
1c6118a4 648
9eaeeaca 649#endif
ea5389ca 650
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651#ifdef PERL_MEM_LOG
652/*
653 * If PERL_MEM_LOG is defined, all Newx()s, Renew()s, and Safefree()s
654 * go through functions, which are handy for debugging breakpoints, but
655 * which more importantly get the immediate calling environment (file and
656 * line number, and C function name if available) passed in. This info can
657 * then be used for logging the calls, for which one gets a sample
658 * implementation if PERL_MEM_LOG_STDERR is defined.
659 *
660 * Known problems:
661 * - all memory allocs do not get logged, only those
662 * that go through Newx() and derivatives (while all
663 * Safefrees do get logged)
664 * - __FILE__ and __LINE__ do not work everywhere
665 * - __func__ or __FUNCTION__ even less so
666 * - I think more goes on after the perlio frees but
667 * the thing is that STDERR gets closed (as do all
668 * the file descriptors)
669 * - no deeper calling stack than the caller of the Newx()
670 * or the kind, but do I look like a C reflection/introspection
671 * utility to you?
672 * - the function prototypes for the logging functions
673 * probably should maybe be somewhere else than handy.h
674 * - one could consider inlining (macrofying) the logging
675 * for speed, but I am too lazy
676 * - one could imagine recording the allocations in a hash,
677 * (keyed by the allocation address?), and maintain that
678 * through reallocs and frees, but how to do that without
679 * any News() happening...?
680 */
681
682Malloc_t Perl_mem_log_alloc(const UV n, const UV typesize, const char *typename, Malloc_t newalloc, const char *filename, const int linenumber, const char *funcname);
683
684Malloc_t Perl_mem_log_realloc(const UV n, const UV typesize, const char *typename, Malloc_t oldalloc, Malloc_t newalloc, const char *filename, const int linenumber, const char *funcname);
685
686Malloc_t Perl_mem_log_free(Malloc_t oldalloc, const char *filename, const int linenumber, const char *funcname);
687
688#endif
689
690#ifdef PERL_MEM_LOG
691#define MEM_LOG_ALLOC(n,t,a) Perl_mem_log_alloc(n,sizeof(t),STRINGIFY(t),a,__FILE__,__LINE__,FUNCTION__)
692#define MEM_LOG_REALLOC(n,t,v,a) Perl_mem_log_realloc(n,sizeof(t),STRINGIFY(t),v,a,__FILE__,__LINE__,FUNCTION__)
693#define MEM_LOG_FREE(a) Perl_mem_log_free(a,__FILE__,__LINE__,FUNCTION__)
694#endif
695
696#ifndef MEM_LOG_ALLOC
697#define MEM_LOG_ALLOC(n,t,a) (a)
698#endif
699#ifndef MEM_LOG_REALLOC
700#define MEM_LOG_REALLOC(n,t,v,a) (a)
701#endif
702#ifndef MEM_LOG_FREE
703#define MEM_LOG_FREE(a) (a)
704#endif
705
706#define Newx(v,n,t) (v = (MEM_WRAP_CHECK_(n,t) MEM_LOG_ALLOC(n,t,(t*)safemalloc((MEM_SIZE)((n)*sizeof(t))))))
707#define Newxc(v,n,t,c) (v = (MEM_WRAP_CHECK_(n,t) MEM_LOG_ALLOC(n,t,(c*)safemalloc((MEM_SIZE)((n)*sizeof(t))))))
708#define Newxz(v,n,t) (v = (MEM_WRAP_CHECK_(n,t) MEM_LOG_ALLOC(n,t,(t*)safemalloc((MEM_SIZE)((n)*sizeof(t)))))), \
ff68c719 709 memzero((char*)(v), (n)*sizeof(t))
cd7a8267
JC
710/* pre 5.9.x compatibility */
711#define New(x,v,n,t) Newx(v,n,t)
712#define Newc(x,v,n,t,c) Newxc(v,n,t,c)
713#define Newz(x,v,n,t) Newxz(v,n,t)
714
ff68c719 715#define Renew(v,n,t) \
c5046a61 716 (v = (MEM_WRAP_CHECK_(n,t) MEM_LOG_REALLOC(n,t,v,(t*)saferealloc((Malloc_t)(v),(MEM_SIZE)((n)*sizeof(t))))))
ff68c719 717#define Renewc(v,n,t,c) \
c5046a61 718 (v = (MEM_WRAP_CHECK_(n,t) MEM_LOG_REALLOC(n,t,v,(c*)saferealloc((Malloc_t)(v),(MEM_SIZE)((n)*sizeof(t))))))
a02c78fd
NC
719
720#ifdef PERL_POISON
721#define Safefree(d) \
d38ad7ba 722 ((d) ? (void)(safefree(MEM_LOG_FREE((Malloc_t)(d))), Poison(&(d), 1, Malloc_t)) : (void) 0)
a02c78fd 723#else
c5046a61 724#define Safefree(d) safefree(MEM_LOG_FREE((Malloc_t)(d)))
a02c78fd 725#endif
55497cff 726
ea5389ca
NC
727#define Move(s,d,n,t) (MEM_WRAP_CHECK_(n,t) (void)memmove((char*)(d),(const char*)(s), (n) * sizeof(t)))
728#define Copy(s,d,n,t) (MEM_WRAP_CHECK_(n,t) (void)memcpy((char*)(d),(const char*)(s), (n) * sizeof(t)))
729#define Zero(d,n,t) (MEM_WRAP_CHECK_(n,t) (void)memzero((char*)(d), (n) * sizeof(t)))
55497cff 730
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731#define MoveD(s,d,n,t) (MEM_WRAP_CHECK_(n,t) memmove((char*)(d),(const char*)(s), (n) * sizeof(t)))
732#define CopyD(s,d,n,t) (MEM_WRAP_CHECK_(n,t) memcpy((char*)(d),(const char*)(s), (n) * sizeof(t)))
735fe74b 733#ifdef HAS_MEMSET
ea5389ca 734#define ZeroD(d,n,t) (MEM_WRAP_CHECK_(n,t) memzero((char*)(d), (n) * sizeof(t)))
735fe74b 735#else
ea5389ca
NC
736/* Using bzero(), which returns void. */
737#define ZeroD(d,n,t) (MEM_WRAP_CHECK_(n,t) memzero((char*)(d), (n) * sizeof(t)),d)
735fe74b
NC
738#endif
739
ea5389ca 740#define Poison(d,n,t) (MEM_WRAP_CHECK_(n,t) (void)memset((char*)(d), 0xAB, (n) * sizeof(t)))
1c6118a4 741
2304df62 742#ifdef USE_STRUCT_COPY
ff68c719 743#define StructCopy(s,d,t) (*((t*)(d)) = *((t*)(s)))
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744#else
745#define StructCopy(s,d,t) Copy(s,d,1,t)
746#endif
2cc61e15 747
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748#define C_ARRAY_LENGTH(a) (sizeof(a)/sizeof((a)[0]))
749
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750#ifdef NEED_VA_COPY
751# ifdef va_copy
752# define Perl_va_copy(s, d) va_copy(d, s)
2cc61e15 753# else
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754# if defined(__va_copy)
755# define Perl_va_copy(s, d) __va_copy(d, s)
756# else
757# define Perl_va_copy(s, d) Copy(s, d, 1, va_list)
758# endif
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759# endif
760#endif
761
b035a42e
NC
762/* convenience debug macros */
763#ifdef USE_ITHREADS
764#define pTHX_FORMAT "Perl interpreter: 0x%p"
765#define pTHX__FORMAT ", Perl interpreter: 0x%p"
24c2fff4
NC
766#define pTHX_VALUE_ (void *)my_perl,
767#define pTHX_VALUE (void *)my_perl
768#define pTHX__VALUE_ ,(void *)my_perl,
769#define pTHX__VALUE ,(void *)my_perl
b035a42e 770#else
84a61f45 771#define pTHX_FORMAT
b035a42e 772#define pTHX__FORMAT
84a61f45 773#define pTHX_VALUE_
b035a42e 774#define pTHX_VALUE
84a61f45 775#define pTHX__VALUE_
b035a42e
NC
776#define pTHX__VALUE
777#endif /* USE_ITHREADS */
84a61f45 778