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a0d0e21e 1/* handy.h
a687059c 2 *
4bb101f2
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3 * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1999,
4 * 2000, 2001, 2002, 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 *
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9 */
10
85e6fe83 11#if !defined(__STDC__)
378cc40b
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12#ifdef NULL
13#undef NULL
14#endif
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15#ifndef I286
16# define NULL 0
17#else
18# define NULL 0L
19#endif
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20#endif
21
378cc40b 22#define Null(type) ((type)NULL)
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23
24/*
ccfc67b7 25=head1 Handy Values
954c1994 26
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27=for apidoc AmU||Nullch
28Null character pointer.
2307c6d0 29
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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
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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
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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++
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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*/
c1d22f6b 62#ifdef __GNUG__ /* GNU g++ has bool built-in */
5d94fbed 63# ifndef HAS_BOOL
c1d22f6b 64# define HAS_BOOL 1
5d94fbed 65# endif
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66#endif
67
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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__)
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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)
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83# define bool int
84# else
85# define bool char
86# endif
c1d22f6b 87# define HAS_BOOL 1
a687059c 88#endif
0d3e774c 89
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90/* XXX A note on the perl source internal type system. The
91 original intent was that I32 be *exactly* 32 bits.
92
93 Currently, we only guarantee that I32 is *at least* 32 bits.
94 Specifically, if int is 64 bits, then so is I32. (This is the case
95 for the Cray.) This has the advantage of meshing nicely with
96 standard library calls (where we pass an I32 and the library is
97 expecting an int), but the disadvantage that an I32 is not 32 bits.
98 Andy Dougherty August 1996
24fef2a7 99
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100 There is no guarantee that there is *any* integral type with
101 exactly 32 bits. It is perfectly legal for a system to have
102 sizeof(short) == sizeof(int) == sizeof(long) == 8.
693762b4 103
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104 Similarly, there is no guarantee that I16 and U16 have exactly 16
105 bits.
693762b4 106
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107 For dealing with issues that may arise from various 32/64-bit
108 systems, we will ask Configure to check out
8175356b 109
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110 SHORTSIZE == sizeof(short)
111 INTSIZE == sizeof(int)
112 LONGSIZE == sizeof(long)
113 LONGLONGSIZE == sizeof(long long) (if HAS_LONG_LONG)
114 PTRSIZE == sizeof(void *)
115 DOUBLESIZE == sizeof(double)
116 LONG_DOUBLESIZE == sizeof(long double) (if HAS_LONG_DOUBLE).
8175356b 117
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118*/
119
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120#ifdef I_INTTYPES /* e.g. Linux has int64_t without <inttypes.h> */
121# include <inttypes.h>
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122# ifdef INT32_MIN_BROKEN
123# undef INT32_MIN
124# define INT32_MIN (-2147483647-1)
125# endif
126# ifdef INT64_MIN_BROKEN
127# undef INT64_MIN
128# define INT64_MIN (-9223372036854775807LL-1)
129# endif
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130#endif
131
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132typedef I8TYPE I8;
133typedef U8TYPE U8;
134typedef I16TYPE I16;
135typedef U16TYPE U16;
136typedef I32TYPE I32;
137typedef U32TYPE U32;
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138#ifdef PERL_CORE
139# ifdef HAS_QUAD
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140typedef I64TYPE I64;
141typedef U64TYPE U64;
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142# endif
143#endif /* PERL_CORE */
8175356b 144
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145#if defined(HAS_QUAD) && defined(USE_64_BIT_INT)
146# ifndef UINT64_C /* usually from <inttypes.h> */
147# if defined(HAS_LONG_LONG) && QUADKIND == QUAD_IS_LONG_LONG
148# define INT64_C(c) CAT2(c,LL)
149# define UINT64_C(c) CAT2(c,ULL)
150# else
151# if LONGSIZE == 8 && QUADKIND == QUAD_IS_LONG
152# define INT64_C(c) CAT2(c,L)
153# define UINT64_C(c) CAT2(c,UL)
154# else
155# define INT64_C(c) ((I64TYPE)(c))
156# define UINT64_C(c) ((U64TYPE)(c))
157# endif
158# endif
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159# endif
160#endif
161
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162/* Mention I8SIZE, U8SIZE, I16SIZE, U16SIZE, I32SIZE, U32SIZE,
163 I64SIZE, and U64SIZE here so that metaconfig pulls them in. */
164
d8668976 165#if defined(UINT8_MAX) && defined(INT16_MAX) && defined(INT32_MAX)
5ff3f7a4 166
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167/* I8_MAX and I8_MIN constants are not defined, as I8 is an ambiguous type.
168 Please search CHAR_MAX in perl.h for further details. */
169#define U8_MAX UINT8_MAX
170#define U8_MIN UINT8_MIN
171
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172#define I16_MAX INT16_MAX
173#define I16_MIN INT16_MIN
174#define U16_MAX UINT16_MAX
175#define U16_MIN UINT16_MIN
176
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177#define I32_MAX INT32_MAX
178#define I32_MIN INT32_MIN
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179#ifndef UINT32_MAX_BROKEN /* e.g. HP-UX with gcc messes this up */
180# define U32_MAX UINT32_MAX
181#else
182# define U32_MAX 4294967295U
183#endif
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184#define U32_MIN UINT32_MIN
185
186#else
187
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188/* I8_MAX and I8_MIN constants are not defined, as I8 is an ambiguous type.
189 Please search CHAR_MAX in perl.h for further details. */
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190#define U8_MAX PERL_UCHAR_MAX
191#define U8_MIN PERL_UCHAR_MIN
79072805 192
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193#define I16_MAX PERL_SHORT_MAX
194#define I16_MIN PERL_SHORT_MIN
195#define U16_MAX PERL_USHORT_MAX
196#define U16_MIN PERL_USHORT_MIN
79072805 197
c4f23d77 198#if LONGSIZE > 4
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199# define I32_MAX PERL_INT_MAX
200# define I32_MIN PERL_INT_MIN
201# define U32_MAX PERL_UINT_MAX
202# define U32_MIN PERL_UINT_MIN
79072805 203#else
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204# define I32_MAX PERL_LONG_MAX
205# define I32_MIN PERL_LONG_MIN
206# define U32_MAX PERL_ULONG_MAX
207# define U32_MIN PERL_ULONG_MIN
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208#endif
209
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210#endif
211
58a9a5d5 212/* log(2) is pretty close to 0.30103, just in case anyone is grepping for it */
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213#define BIT_DIGITS(N) (((N)*146)/485 + 1) /* log2(10) =~ 146/485 */
214#define TYPE_DIGITS(T) BIT_DIGITS(sizeof(T) * 8)
215#define TYPE_CHARS(T) (TYPE_DIGITS(T) + 2) /* sign, NUL */
216
ff68c719 217#define Ctl(ch) ((ch) & 037)
8d063cd8 218
954c1994 219/*
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220=head1 Miscellaneous Functions
221
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222=for apidoc Am|bool|strNE|char* s1|char* s2
223Test two strings to see if they are different. Returns true or
224false.
225
226=for apidoc Am|bool|strEQ|char* s1|char* s2
227Test two strings to see if they are equal. Returns true or false.
228
229=for apidoc Am|bool|strLT|char* s1|char* s2
230Test two strings to see if the first, C<s1>, is less than the second,
231C<s2>. Returns true or false.
232
233=for apidoc Am|bool|strLE|char* s1|char* s2
234Test two strings to see if the first, C<s1>, is less than or equal to the
235second, C<s2>. Returns true or false.
236
237=for apidoc Am|bool|strGT|char* s1|char* s2
238Test two strings to see if the first, C<s1>, is greater than the second,
239C<s2>. Returns true or false.
240
241=for apidoc Am|bool|strGE|char* s1|char* s2
242Test two strings to see if the first, C<s1>, is greater than or equal to
243the second, C<s2>. Returns true or false.
244
245=for apidoc Am|bool|strnNE|char* s1|char* s2|STRLEN len
246Test two strings to see if they are different. The C<len> parameter
247indicates the number of bytes to compare. Returns true or false. (A
248wrapper for C<strncmp>).
249
250=for apidoc Am|bool|strnEQ|char* s1|char* s2|STRLEN len
251Test two strings to see if they are equal. The C<len> parameter indicates
252the number of bytes to compare. Returns true or false. (A wrapper for
253C<strncmp>).
254
255=cut
256*/
257
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258#define strNE(s1,s2) (strcmp(s1,s2))
259#define strEQ(s1,s2) (!strcmp(s1,s2))
260#define strLT(s1,s2) (strcmp(s1,s2) < 0)
261#define strLE(s1,s2) (strcmp(s1,s2) <= 0)
262#define strGT(s1,s2) (strcmp(s1,s2) > 0)
263#define strGE(s1,s2) (strcmp(s1,s2) >= 0)
264#define strnNE(s1,s2,l) (strncmp(s1,s2,l))
265#define strnEQ(s1,s2,l) (!strncmp(s1,s2,l))
378cc40b 266
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267#ifdef HAS_MEMCMP
268# define memNE(s1,s2,l) (memcmp(s1,s2,l))
269# define memEQ(s1,s2,l) (!memcmp(s1,s2,l))
270#else
271# define memNE(s1,s2,l) (bcmp(s1,s2,l))
272# define memEQ(s1,s2,l) (!bcmp(s1,s2,l))
273#endif
274
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275/*
276 * Character classes.
277 *
278 * Unfortunately, the introduction of locales means that we
279 * can't trust isupper(), etc. to tell the truth. And when
280 * it comes to /\w+/ with tainting enabled, we *must* be able
281 * to trust our character classes.
282 *
283 * Therefore, the default tests in the text of Perl will be
284 * independent of locale. Any code that wants to depend on
285 * the current locale will use the tests that begin with "lc".
286 */
287
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288#ifdef HAS_SETLOCALE /* XXX Is there a better test for this? */
289# ifndef CTYPE256
290# define CTYPE256
291# endif
292#endif
293
954c1994 294/*
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295
296=head1 Character classes
297
954c1994 298=for apidoc Am|bool|isALNUM|char ch
4375e838 299Returns a boolean indicating whether the C C<char> is an ASCII alphanumeric
f1cbbd6e 300character (including underscore) or digit.
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301
302=for apidoc Am|bool|isALPHA|char ch
4375e838 303Returns a boolean indicating whether the C C<char> is an ASCII alphabetic
954c1994
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304character.
305
306=for apidoc Am|bool|isSPACE|char ch
307Returns a boolean indicating whether the C C<char> is whitespace.
308
309=for apidoc Am|bool|isDIGIT|char ch
4375e838 310Returns a boolean indicating whether the C C<char> is an ASCII
954c1994
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311digit.
312
313=for apidoc Am|bool|isUPPER|char ch
314Returns a boolean indicating whether the C C<char> is an uppercase
315character.
316
317=for apidoc Am|bool|isLOWER|char ch
318Returns a boolean indicating whether the C C<char> is a lowercase
319character.
320
321=for apidoc Am|char|toUPPER|char ch
322Converts the specified character to uppercase.
323
324=for apidoc Am|char|toLOWER|char ch
325Converts the specified character to lowercase.
326
327=cut
328*/
329
bbce6d69
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330#define isALNUM(c) (isALPHA(c) || isDIGIT(c) || (c) == '_')
331#define isIDFIRST(c) (isALPHA(c) || (c) == '_')
332#define isALPHA(c) (isUPPER(c) || isLOWER(c))
333#define isSPACE(c) \
334 ((c) == ' ' || (c) == '\t' || (c) == '\n' || (c) =='\r' || (c) == '\f')
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335#define isPSXSPC(c) (isSPACE(c) || (c) == '\v')
336#define isBLANK(c) ((c) == ' ' || (c) == '\t')
bbce6d69 337#define isDIGIT(c) ((c) >= '0' && (c) <= '9')
9d116dd7
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338#ifdef EBCDIC
339 /* In EBCDIC we do not do locales: therefore() isupper() is fine. */
340# define isUPPER(c) isupper(c)
341# define isLOWER(c) islower(c)
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342# define isALNUMC(c) isalnum(c)
343# define isASCII(c) isascii(c)
344# define isCNTRL(c) iscntrl(c)
345# define isGRAPH(c) isgraph(c)
9d116dd7 346# define isPRINT(c) isprint(c)
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347# define isPUNCT(c) ispunct(c)
348# define isXDIGIT(c) isxdigit(c)
9d116dd7
JH
349# define toUPPER(c) toupper(c)
350# define toLOWER(c) tolower(c)
351#else
352# define isUPPER(c) ((c) >= 'A' && (c) <= 'Z')
353# define isLOWER(c) ((c) >= 'a' && (c) <= 'z')
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354# define isALNUMC(c) (isALPHA(c) || isDIGIT(c))
355# define isASCII(c) ((c) <= 127)
7be5a6cf 356# define isCNTRL(c) ((c) < ' ' || (c) == 127)
b8c5462f 357# define isGRAPH(c) (isALNUM(c) || isPUNCT(c))
f79b3095 358# define isPRINT(c) (((c) > 32 && (c) < 127) || (c) == ' ')
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JH
359# define isPUNCT(c) (((c) >= 33 && (c) <= 47) || ((c) >= 58 && (c) <= 64) || ((c) >= 91 && (c) <= 96) || ((c) >= 123 && (c) <= 126))
360# define isXDIGIT(c) (isdigit(c) || ((c) >= 'a' && (c) <= 'f') || ((c) >= 'A' && (c) <= 'F'))
9d116dd7
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361# define toUPPER(c) (isLOWER(c) ? (c) - ('a' - 'A') : (c))
362# define toLOWER(c) (isUPPER(c) ? (c) + ('a' - 'A') : (c))
363#endif
bbce6d69
PP
364
365#ifdef USE_NEXT_CTYPE
366
367# define isALNUM_LC(c) \
37bd1396 368 (NXIsAlNum((unsigned int)(c)) || (char)(c) == '_')
ff68c719
PP
369# define isIDFIRST_LC(c) \
370 (NXIsAlpha((unsigned int)(c)) || (char)(c) == '_')
371# define isALPHA_LC(c) NXIsAlpha((unsigned int)(c))
372# define isSPACE_LC(c) NXIsSpace((unsigned int)(c))
373# define isDIGIT_LC(c) NXIsDigit((unsigned int)(c))
374# define isUPPER_LC(c) NXIsUpper((unsigned int)(c))
375# define isLOWER_LC(c) NXIsLower((unsigned int)(c))
37bd1396 376# define isALNUMC_LC(c) NXIsAlNum((unsigned int)(c))
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377# define isCNTRL_LC(c) NXIsCntrl((unsigned int)(c))
378# define isGRAPH_LC(c) NXIsGraph((unsigned int)(c))
ff68c719 379# define isPRINT_LC(c) NXIsPrint((unsigned int)(c))
b8c5462f 380# define isPUNCT_LC(c) NXIsPunct((unsigned int)(c))
ff68c719
PP
381# define toUPPER_LC(c) NXToUpper((unsigned int)(c))
382# define toLOWER_LC(c) NXToLower((unsigned int)(c))
bbce6d69
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383
384#else /* !USE_NEXT_CTYPE */
b8c5462f 385
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386# if defined(CTYPE256) || (!defined(isascii) && !defined(HAS_ISASCII))
387
b8c5462f 388# define isALNUM_LC(c) (isalnum((unsigned char)(c)) || (char)(c) == '_')
ff68c719 389# define isIDFIRST_LC(c) (isalpha((unsigned char)(c)) || (char)(c) == '_')
bbce6d69
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390# define isALPHA_LC(c) isalpha((unsigned char)(c))
391# define isSPACE_LC(c) isspace((unsigned char)(c))
392# define isDIGIT_LC(c) isdigit((unsigned char)(c))
393# define isUPPER_LC(c) isupper((unsigned char)(c))
394# define isLOWER_LC(c) islower((unsigned char)(c))
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395# define isALNUMC_LC(c) isalnum((unsigned char)(c))
396# define isCNTRL_LC(c) iscntrl((unsigned char)(c))
397# define isGRAPH_LC(c) isgraph((unsigned char)(c))
bbce6d69 398# define isPRINT_LC(c) isprint((unsigned char)(c))
b8c5462f 399# define isPUNCT_LC(c) ispunct((unsigned char)(c))
bbce6d69
PP
400# define toUPPER_LC(c) toupper((unsigned char)(c))
401# define toLOWER_LC(c) tolower((unsigned char)(c))
402
403# else
404
b8c5462f 405# define isALNUM_LC(c) (isascii(c) && (isalnum(c) || (c) == '_'))
bbce6d69
PP
406# define isIDFIRST_LC(c) (isascii(c) && (isalpha(c) || (c) == '_'))
407# define isALPHA_LC(c) (isascii(c) && isalpha(c))
408# define isSPACE_LC(c) (isascii(c) && isspace(c))
409# define isDIGIT_LC(c) (isascii(c) && isdigit(c))
410# define isUPPER_LC(c) (isascii(c) && isupper(c))
411# define isLOWER_LC(c) (isascii(c) && islower(c))
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412# define isALNUMC_LC(c) (isascii(c) && isalnum(c))
413# define isCNTRL_LC(c) (isascii(c) && iscntrl(c))
414# define isGRAPH_LC(c) (isascii(c) && isgraph(c))
bbce6d69 415# define isPRINT_LC(c) (isascii(c) && isprint(c))
b8c5462f 416# define isPUNCT_LC(c) (isascii(c) && ispunct(c))
bbce6d69
PP
417# define toUPPER_LC(c) toupper(c)
418# define toLOWER_LC(c) tolower(c)
419
420# endif
a0d0e21e 421#endif /* USE_NEXT_CTYPE */
55204971 422
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423#define isPSXSPC_LC(c) (isSPACE_LC(c) || (c) == '\v')
424#define isBLANK_LC(c) isBLANK(c) /* could be wrong */
425
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LW
426#define isALNUM_uni(c) is_uni_alnum(c)
427#define isIDFIRST_uni(c) is_uni_idfirst(c)
428#define isALPHA_uni(c) is_uni_alpha(c)
429#define isSPACE_uni(c) is_uni_space(c)
430#define isDIGIT_uni(c) is_uni_digit(c)
431#define isUPPER_uni(c) is_uni_upper(c)
432#define isLOWER_uni(c) is_uni_lower(c)
b8c5462f
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433#define isALNUMC_uni(c) is_uni_alnumc(c)
434#define isASCII_uni(c) is_uni_ascii(c)
435#define isCNTRL_uni(c) is_uni_cntrl(c)
436#define isGRAPH_uni(c) is_uni_graph(c)
a0ed51b3 437#define isPRINT_uni(c) is_uni_print(c)
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JH
438#define isPUNCT_uni(c) is_uni_punct(c)
439#define isXDIGIT_uni(c) is_uni_xdigit(c)
a2a2844f
JH
440#define toUPPER_uni(c,s,l) to_uni_upper(c,s,l)
441#define toTITLE_uni(c,s,l) to_uni_title(c,s,l)
442#define toLOWER_uni(c,s,l) to_uni_lower(c,s,l)
b8d68ded 443#define toFOLD_uni(c,s,l) to_uni_fold(c,s,l)
a0ed51b3 444
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445#define isPSXSPC_uni(c) (isSPACE_uni(c) ||(c) == '\f')
446#define isBLANK_uni(c) isBLANK(c) /* could be wrong */
447
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NIS
448#define isALNUM_LC_uvchr(c) (c < 256 ? isALNUM_LC(c) : is_uni_alnum_lc(c))
449#define isIDFIRST_LC_uvchr(c) (c < 256 ? isIDFIRST_LC(c) : is_uni_idfirst_lc(c))
450#define isALPHA_LC_uvchr(c) (c < 256 ? isALPHA_LC(c) : is_uni_alpha_lc(c))
451#define isSPACE_LC_uvchr(c) (c < 256 ? isSPACE_LC(c) : is_uni_space_lc(c))
452#define isDIGIT_LC_uvchr(c) (c < 256 ? isDIGIT_LC(c) : is_uni_digit_lc(c))
453#define isUPPER_LC_uvchr(c) (c < 256 ? isUPPER_LC(c) : is_uni_upper_lc(c))
454#define isLOWER_LC_uvchr(c) (c < 256 ? isLOWER_LC(c) : is_uni_lower_lc(c))
455#define isALNUMC_LC_uvchr(c) (c < 256 ? isALNUMC_LC(c) : is_uni_alnumc_lc(c))
456#define isCNTRL_LC_uvchr(c) (c < 256 ? isCNTRL_LC(c) : is_uni_cntrl_lc(c))
457#define isGRAPH_LC_uvchr(c) (c < 256 ? isGRAPH_LC(c) : is_uni_graph_lc(c))
458#define isPRINT_LC_uvchr(c) (c < 256 ? isPRINT_LC(c) : is_uni_print_lc(c))
459#define isPUNCT_LC_uvchr(c) (c < 256 ? isPUNCT_LC(c) : is_uni_punct_lc(c))
a0ed51b3 460
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461#define isPSXSPC_LC_uni(c) (isSPACE_LC_uni(c) ||(c) == '\f')
462#define isBLANK_LC_uni(c) isBLANK(c) /* could be wrong */
463
a0ed51b3 464#define isALNUM_utf8(p) is_utf8_alnum(p)
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JH
465/* The ID_Start of Unicode is quite limiting: it assumes a L-class
466 * character (meaning that you cannot have, say, a CJK character).
467 * Instead, let's allow ID_Continue but not digits. */
468#define isIDFIRST_utf8(p) (is_utf8_idcont(p) && !is_utf8_digit(p))
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LW
469#define isALPHA_utf8(p) is_utf8_alpha(p)
470#define isSPACE_utf8(p) is_utf8_space(p)
471#define isDIGIT_utf8(p) is_utf8_digit(p)
472#define isUPPER_utf8(p) is_utf8_upper(p)
473#define isLOWER_utf8(p) is_utf8_lower(p)
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JH
474#define isALNUMC_utf8(p) is_utf8_alnumc(p)
475#define isASCII_utf8(p) is_utf8_ascii(p)
476#define isCNTRL_utf8(p) is_utf8_cntrl(p)
477#define isGRAPH_utf8(p) is_utf8_graph(p)
a0ed51b3 478#define isPRINT_utf8(p) is_utf8_print(p)
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JH
479#define isPUNCT_utf8(p) is_utf8_punct(p)
480#define isXDIGIT_utf8(p) is_utf8_xdigit(p)
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JH
481#define toUPPER_utf8(p,s,l) to_utf8_upper(p,s,l)
482#define toTITLE_utf8(p,s,l) to_utf8_title(p,s,l)
483#define toLOWER_utf8(p,s,l) to_utf8_lower(p,s,l)
a0ed51b3 484
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485#define isPSXSPC_utf8(c) (isSPACE_utf8(c) ||(c) == '\f')
486#define isBLANK_utf8(c) isBLANK(c) /* could be wrong */
487
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NIS
488#define isALNUM_LC_utf8(p) isALNUM_LC_uvchr(utf8_to_uvchr(p, 0))
489#define isIDFIRST_LC_utf8(p) isIDFIRST_LC_uvchr(utf8_to_uvchr(p, 0))
490#define isALPHA_LC_utf8(p) isALPHA_LC_uvchr(utf8_to_uvchr(p, 0))
491#define isSPACE_LC_utf8(p) isSPACE_LC_uvchr(utf8_to_uvchr(p, 0))
492#define isDIGIT_LC_utf8(p) isDIGIT_LC_uvchr(utf8_to_uvchr(p, 0))
493#define isUPPER_LC_utf8(p) isUPPER_LC_uvchr(utf8_to_uvchr(p, 0))
494#define isLOWER_LC_utf8(p) isLOWER_LC_uvchr(utf8_to_uvchr(p, 0))
495#define isALNUMC_LC_utf8(p) isALNUMC_LC_uvchr(utf8_to_uvchr(p, 0))
496#define isCNTRL_LC_utf8(p) isCNTRL_LC_uvchr(utf8_to_uvchr(p, 0))
497#define isGRAPH_LC_utf8(p) isGRAPH_LC_uvchr(utf8_to_uvchr(p, 0))
498#define isPRINT_LC_utf8(p) isPRINT_LC_uvchr(utf8_to_uvchr(p, 0))
499#define isPUNCT_LC_utf8(p) isPUNCT_LC_uvchr(utf8_to_uvchr(p, 0))
a0ed51b3 500
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501#define isPSXSPC_LC_utf8(c) (isSPACE_LC_utf8(c) ||(c) == '\f')
502#define isBLANK_LC_utf8(c) isBLANK(c) /* could be wrong */
503
9d116dd7 504#ifdef EBCDIC
cbebf344 505# define toCTRL(c) Perl_ebcdic_control(c)
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JH
506#else
507 /* This conversion works both ways, strangely enough. */
508# define toCTRL(c) (toUPPER(c) ^ 64)
509#endif
bbce6d69 510
378cc40b 511/* Line numbers are unsigned, 16 bits. */
79072805 512typedef U16 line_t;
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LW
513#ifdef lint
514#define NOLINE ((line_t)0)
515#else
516#define NOLINE ((line_t) 65535)
517#endif
518
8c52afec 519
8e84507e 520/*
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JH
521=head1 SV Manipulation Functions
522
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GS
523=for apidoc Am|SV*|NEWSV|int id|STRLEN len
524Creates a new SV. A non-zero C<len> parameter indicates the number of
525bytes of preallocated string space the SV should have. An extra byte for a
526tailing NUL is also reserved. (SvPOK is not set for the SV even if string
8e84507e 527space is allocated.) The reference count for the new SV is set to 1.
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GS
528C<id> is an integer id between 0 and 1299 (used to identify leaks).
529
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JH
530=head1 Memory Management
531
954c1994
GS
532=for apidoc Am|void|New|int id|void* ptr|int nitems|type
533The XSUB-writer's interface to the C C<malloc> function.
534
535=for apidoc Am|void|Newc|int id|void* ptr|int nitems|type|cast
536The XSUB-writer's interface to the C C<malloc> function, with
537cast.
538
539=for apidoc Am|void|Newz|int id|void* ptr|int nitems|type
540The XSUB-writer's interface to the C C<malloc> function. The allocated
541memory is zeroed with C<memzero>.
542
543=for apidoc Am|void|Renew|void* ptr|int nitems|type
544The XSUB-writer's interface to the C C<realloc> function.
545
546=for apidoc Am|void|Renewc|void* ptr|int nitems|type|cast
547The XSUB-writer's interface to the C C<realloc> function, with
548cast.
549
49b8b560 550=for apidoc Am|void|Safefree|void* ptr
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GS
551The XSUB-writer's interface to the C C<free> function.
552
553=for apidoc Am|void|Move|void* src|void* dest|int nitems|type
554The XSUB-writer's interface to the C C<memmove> function. The C<src> is the
555source, C<dest> is the destination, C<nitems> is the number of items, and C<type> is
556the type. Can do overlapping moves. See also C<Copy>.
557
558=for apidoc Am|void|Copy|void* src|void* dest|int nitems|type
559The XSUB-writer's interface to the C C<memcpy> function. The C<src> is the
560source, C<dest> is the destination, C<nitems> is the number of items, and C<type> is
561the type. May fail on overlapping copies. See also C<Move>.
562
563=for apidoc Am|void|Zero|void* dest|int nitems|type
564
565The XSUB-writer's interface to the C C<memzero> function. The C<dest> is the
566destination, C<nitems> is the number of items, and C<type> is the type.
567
568=for apidoc Am|void|StructCopy|type src|type dest|type
4375e838 569This is an architecture-independent macro to copy one structure to another.
954c1994 570
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JH
571=for apidoc Am|void|Poison|void* dest|int nitems|type
572
573Fill up memory with a pattern (byte 0xAB over and over again) that
574hopefully catches attempts to access uninitialized memory.
575
576=cut */
954c1994 577
a687059c 578#ifndef lint
ff06c60c
IZ
579
580#define NEWSV(x,len) newSV(len)
581
ff68c719
PP
582#define New(x,v,n,t) (v = (t*)safemalloc((MEM_SIZE)((n)*sizeof(t))))
583#define Newc(x,v,n,t,c) (v = (c*)safemalloc((MEM_SIZE)((n)*sizeof(t))))
584#define Newz(x,v,n,t) (v = (t*)safemalloc((MEM_SIZE)((n)*sizeof(t)))), \
585 memzero((char*)(v), (n)*sizeof(t))
586#define Renew(v,n,t) \
587 (v = (t*)saferealloc((Malloc_t)(v),(MEM_SIZE)((n)*sizeof(t))))
588#define Renewc(v,n,t,c) \
589 (v = (c*)saferealloc((Malloc_t)(v),(MEM_SIZE)((n)*sizeof(t))))
590#define Safefree(d) safefree((Malloc_t)(d))
55497cff 591
ff68c719
PP
592#define Move(s,d,n,t) (void)memmove((char*)(d),(char*)(s), (n) * sizeof(t))
593#define Copy(s,d,n,t) (void)memcpy((char*)(d),(char*)(s), (n) * sizeof(t))
594#define Zero(d,n,t) (void)memzero((char*)(d), (n) * sizeof(t))
55497cff 595
9965345d
JH
596#define Poison(d,n,t) (void)memset((char*)(d), 0xAB, (n) * sizeof(t))
597
a687059c 598#else /* lint */
55497cff 599
ff68c719
PP
600#define New(x,v,n,s) (v = Null(s *))
601#define Newc(x,v,n,s,c) (v = Null(s *))
602#define Newz(x,v,n,s) (v = Null(s *))
603#define Renew(v,n,s) (v = Null(s *))
bee1dbe2 604#define Move(s,d,n,t)
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LW
605#define Copy(s,d,n,t)
606#define Zero(d,n,t)
9965345d 607#define Poison(d,n,t)
ff68c719 608#define Safefree(d) (d) = (d)
55497cff 609
a687059c 610#endif /* lint */
bee1dbe2 611
2304df62 612#ifdef USE_STRUCT_COPY
ff68c719 613#define StructCopy(s,d,t) (*((t*)(d)) = *((t*)(s)))
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LW
614#else
615#define StructCopy(s,d,t) Copy(s,d,1,t)
616#endif
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DD
617
618#ifdef NEED_VA_COPY
619# ifdef va_copy
620# define Perl_va_copy(s, d) va_copy(d, s)
2cc61e15 621# else
a1866d1b
JH
622# if defined(__va_copy)
623# define Perl_va_copy(s, d) __va_copy(d, s)
624# else
625# define Perl_va_copy(s, d) Copy(s, d, 1, va_list)
626# endif
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DD
627# endif
628#endif
629