[win32] integrate mainline
[p5sagit/p5-mst-13.2.git] / handy.h
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a0d0e21e 1/* handy.h
a687059c 2 *
9607fc9c 3 * Copyright (c) 1991-1997, Larry Wall
a687059c 4 *
6e21c824 5 * You may distribute under the terms of either the GNU General Public
6 * License or the Artistic License, as specified in the README file.
8d063cd8 7 *
8d063cd8 8 */
9
85e6fe83 10#if !defined(__STDC__)
378cc40b 11#ifdef NULL
12#undef NULL
13#endif
a687059c 14#ifndef I286
15# define NULL 0
16#else
17# define NULL 0L
18#endif
85e6fe83 19#endif
20
378cc40b 21#define Null(type) ((type)NULL)
8d063cd8 22#define Nullch Null(char*)
760ac839 23#define Nullfp Null(PerlIO*)
79072805 24#define Nullsv Null(SV*)
8d063cd8 25
641d3f0b 26#ifdef TRUE
27#undef TRUE
28#endif
29#ifdef FALSE
30#undef FALSE
31#endif
32#define TRUE (1)
33#define FALSE (0)
34
27d4fb96 35
36/* XXX Configure ought to have a test for a boolean type, if I can
37 just figure out all the headers such a test needs.
38 Andy Dougherty August 1996
39*/
232e078e 40/* bool is built-in for g++-2.6.3, which might be used for an extension.
5d94fbed 41 If the extension includes <_G_config.h> before this file then
42 _G_HAVE_BOOL will be properly set. If, however, the extension includes
43 this file first, then you will have to manually set -DHAS_BOOL in
44 your command line to avoid a conflict.
45*/
46#ifdef _G_HAVE_BOOL
47# if _G_HAVE_BOOL
48# ifndef HAS_BOOL
49# define HAS_BOOL 1
50# endif
51# endif
52#endif
53
641d3f0b 54/* The NeXT dynamic loader headers will not build with the bool macro
55 So declare them now to clear confusion.
56*/
57#ifdef NeXT
58# undef FALSE
59# undef TRUE
60 typedef enum bool { FALSE = 0, TRUE = 1 } bool;
61# define ENUM_BOOL 1
62# ifndef HAS_BOOL
63# define HAS_BOOL 1
64# endif /* !HAS_BOOL */
65#endif /* NeXT */
66
5d94fbed 67#ifndef HAS_BOOL
61bb5906 68# if defined(UTS) || defined(VMS)
5d94fbed 69# define bool int
70# else
71# define bool char
72# endif
a687059c 73#endif
0d3e774c 74
27d4fb96 75/* XXX A note on the perl source internal type system. The
76 original intent was that I32 be *exactly* 32 bits.
77
78 Currently, we only guarantee that I32 is *at least* 32 bits.
79 Specifically, if int is 64 bits, then so is I32. (This is the case
80 for the Cray.) This has the advantage of meshing nicely with
81 standard library calls (where we pass an I32 and the library is
82 expecting an int), but the disadvantage that an I32 is not 32 bits.
83 Andy Dougherty August 1996
24fef2a7 84
85 In the future, we may perhaps want to think about something like
86 #if INTSIZE == 4
87 typedef I32 int;
88 #else
89 # if LONGSIZE == 4
90 typedef I32 long;
91 # else
92 # if SHORTSIZE == 4
93 typedef I32 short;
94 # else
95 typedef I32 int;
96 # endif
97 # endif
98 #endif
99 For the moment, these are mentioned here so metaconfig will
100 construct Configure to figure out the various sizes.
27d4fb96 101*/
102
79072805 103typedef char I8;
104typedef unsigned char U8;
5c9fa16e 105/* I8_MAX and I8_MIN constants are not defined, as I8 is an ambiguous type.
106 Please search CHAR_MAX in perl.h for further details. */
27d4fb96 107#define U8_MAX PERL_UCHAR_MAX
108#define U8_MIN PERL_UCHAR_MIN
79072805 109
110typedef short I16;
111typedef unsigned short U16;
27d4fb96 112#define I16_MAX PERL_SHORT_MAX
113#define I16_MIN PERL_SHORT_MIN
114#define U16_MAX PERL_USHORT_MAX
115#define U16_MIN PERL_USHORT_MIN
79072805 116
a0d0e21e 117#if BYTEORDER > 0x4321
85e6fe83 118 typedef int I32;
119 typedef unsigned int U32;
27d4fb96 120# define I32_MAX PERL_INT_MAX
121# define I32_MIN PERL_INT_MIN
122# define U32_MAX PERL_UINT_MAX
123# define U32_MIN PERL_UINT_MIN
79072805 124#else
85e6fe83 125 typedef long I32;
126 typedef unsigned long U32;
27d4fb96 127# define I32_MAX PERL_LONG_MAX
128# define I32_MIN PERL_LONG_MIN
129# define U32_MAX PERL_ULONG_MAX
130# define U32_MIN PERL_ULONG_MIN
79072805 131#endif
132
fc36a67e 133#define BIT_DIGITS(N) (((N)*146)/485 + 1) /* log2(10) =~ 146/485 */
134#define TYPE_DIGITS(T) BIT_DIGITS(sizeof(T) * 8)
135#define TYPE_CHARS(T) (TYPE_DIGITS(T) + 2) /* sign, NUL */
136
ff68c719 137#define Ctl(ch) ((ch) & 037)
8d063cd8 138
139#define strNE(s1,s2) (strcmp(s1,s2))
140#define strEQ(s1,s2) (!strcmp(s1,s2))
141#define strLT(s1,s2) (strcmp(s1,s2) < 0)
142#define strLE(s1,s2) (strcmp(s1,s2) <= 0)
143#define strGT(s1,s2) (strcmp(s1,s2) > 0)
144#define strGE(s1,s2) (strcmp(s1,s2) >= 0)
145#define strnNE(s1,s2,l) (strncmp(s1,s2,l))
146#define strnEQ(s1,s2,l) (!strncmp(s1,s2,l))
378cc40b 147
36477c24 148#ifdef HAS_MEMCMP
149# define memNE(s1,s2,l) (memcmp(s1,s2,l))
150# define memEQ(s1,s2,l) (!memcmp(s1,s2,l))
151#else
152# define memNE(s1,s2,l) (bcmp(s1,s2,l))
153# define memEQ(s1,s2,l) (!bcmp(s1,s2,l))
154#endif
155
bbce6d69 156/*
157 * Character classes.
158 *
159 * Unfortunately, the introduction of locales means that we
160 * can't trust isupper(), etc. to tell the truth. And when
161 * it comes to /\w+/ with tainting enabled, we *must* be able
162 * to trust our character classes.
163 *
164 * Therefore, the default tests in the text of Perl will be
165 * independent of locale. Any code that wants to depend on
166 * the current locale will use the tests that begin with "lc".
167 */
168
2304df62 169#ifdef HAS_SETLOCALE /* XXX Is there a better test for this? */
170# ifndef CTYPE256
171# define CTYPE256
172# endif
173#endif
174
bbce6d69 175#define isALNUM(c) (isALPHA(c) || isDIGIT(c) || (c) == '_')
176#define isIDFIRST(c) (isALPHA(c) || (c) == '_')
177#define isALPHA(c) (isUPPER(c) || isLOWER(c))
178#define isSPACE(c) \
179 ((c) == ' ' || (c) == '\t' || (c) == '\n' || (c) =='\r' || (c) == '\f')
180#define isDIGIT(c) ((c) >= '0' && (c) <= '9')
181#define isUPPER(c) ((c) >= 'A' && (c) <= 'Z')
182#define isLOWER(c) ((c) >= 'a' && (c) <= 'z')
183#define isPRINT(c) (((c) > 32 && (c) < 127) || isSPACE(c))
184#define toUPPER(c) (isLOWER(c) ? (c) - ('a' - 'A') : (c))
185#define toLOWER(c) (isUPPER(c) ? (c) + ('a' - 'A') : (c))
186
187#ifdef USE_NEXT_CTYPE
188
189# define isALNUM_LC(c) \
ff68c719 190 (NXIsAlpha((unsigned int)(c)) || NXIsDigit((unsigned int)(c)) || \
191 (char)(c) == '_')
192# define isIDFIRST_LC(c) \
193 (NXIsAlpha((unsigned int)(c)) || (char)(c) == '_')
194# define isALPHA_LC(c) NXIsAlpha((unsigned int)(c))
195# define isSPACE_LC(c) NXIsSpace((unsigned int)(c))
196# define isDIGIT_LC(c) NXIsDigit((unsigned int)(c))
197# define isUPPER_LC(c) NXIsUpper((unsigned int)(c))
198# define isLOWER_LC(c) NXIsLower((unsigned int)(c))
199# define isPRINT_LC(c) NXIsPrint((unsigned int)(c))
200# define toUPPER_LC(c) NXToUpper((unsigned int)(c))
201# define toLOWER_LC(c) NXToLower((unsigned int)(c))
bbce6d69 202
203#else /* !USE_NEXT_CTYPE */
204# if defined(CTYPE256) || (!defined(isascii) && !defined(HAS_ISASCII))
205
206# define isALNUM_LC(c) \
207 (isalpha((unsigned char)(c)) || \
ff68c719 208 isdigit((unsigned char)(c)) || (char)(c) == '_')
209# define isIDFIRST_LC(c) (isalpha((unsigned char)(c)) || (char)(c) == '_')
bbce6d69 210# define isALPHA_LC(c) isalpha((unsigned char)(c))
211# define isSPACE_LC(c) isspace((unsigned char)(c))
212# define isDIGIT_LC(c) isdigit((unsigned char)(c))
213# define isUPPER_LC(c) isupper((unsigned char)(c))
214# define isLOWER_LC(c) islower((unsigned char)(c))
215# define isPRINT_LC(c) isprint((unsigned char)(c))
216# define toUPPER_LC(c) toupper((unsigned char)(c))
217# define toLOWER_LC(c) tolower((unsigned char)(c))
218
219# else
220
221# define isALNUM_LC(c) \
ff68c719 222 (isascii(c) && (isalpha(c) || isdigit(c) || (c) == '_'))
bbce6d69 223# define isIDFIRST_LC(c) (isascii(c) && (isalpha(c) || (c) == '_'))
224# define isALPHA_LC(c) (isascii(c) && isalpha(c))
225# define isSPACE_LC(c) (isascii(c) && isspace(c))
226# define isDIGIT_LC(c) (isascii(c) && isdigit(c))
227# define isUPPER_LC(c) (isascii(c) && isupper(c))
228# define isLOWER_LC(c) (isascii(c) && islower(c))
229# define isPRINT_LC(c) (isascii(c) && isprint(c))
230# define toUPPER_LC(c) toupper(c)
231# define toLOWER_LC(c) tolower(c)
232
233# endif
a0d0e21e 234#endif /* USE_NEXT_CTYPE */
55204971 235
bbce6d69 236/* This conversion works both ways, strangely enough. */
237#define toCTRL(c) (toUPPER(c) ^ 64)
238
378cc40b 239/* Line numbers are unsigned, 16 bits. */
79072805 240typedef U16 line_t;
378cc40b 241#ifdef lint
242#define NOLINE ((line_t)0)
243#else
244#define NOLINE ((line_t) 65535)
245#endif
246
8c52afec 247
248/* This looks obsolete (IZ):
249
250 XXX LEAKTEST doesn't really work in perl5. There are direct calls to
27d4fb96 251 safemalloc() in the source, so LEAKTEST won't pick them up.
252 Further, if you try LEAKTEST, you'll also end up calling
253 Safefree, which might call safexfree() on some things that weren't
254 malloced with safexmalloc. The correct "fix" to this, if anyone
255 is interested, is to ensure that all calls go through the New and
256 Renew macros.
257 --Andy Dougherty August 1996
258*/
55497cff 259
a687059c 260#ifndef lint
261#ifndef LEAKTEST
598a3d64 262
ff68c719 263#define New(x,v,n,t) (v = (t*)safemalloc((MEM_SIZE)((n)*sizeof(t))))
264#define Newc(x,v,n,t,c) (v = (c*)safemalloc((MEM_SIZE)((n)*sizeof(t))))
265#define Newz(x,v,n,t) (v = (t*)safemalloc((MEM_SIZE)((n)*sizeof(t)))), \
266 memzero((char*)(v), (n)*sizeof(t))
267#define Renew(v,n,t) \
268 (v = (t*)saferealloc((Malloc_t)(v),(MEM_SIZE)((n)*sizeof(t))))
269#define Renewc(v,n,t,c) \
270 (v = (c*)saferealloc((Malloc_t)(v),(MEM_SIZE)((n)*sizeof(t))))
271#define Safefree(d) safefree((Malloc_t)(d))
272#define NEWSV(x,len) newSV(len)
55497cff 273
a687059c 274#else /* LEAKTEST */
55497cff 275
ff68c719 276#define New(x,v,n,t) (v = (t*)safexmalloc((x),(MEM_SIZE)((n)*sizeof(t))))
277#define Newc(x,v,n,t,c) (v = (c*)safexmalloc((x),(MEM_SIZE)((n)*sizeof(t))))
278#define Newz(x,v,n,t) (v = (t*)safexmalloc((x),(MEM_SIZE)((n)*sizeof(t)))), \
279 memzero((char*)(v), (n)*sizeof(t))
280#define Renew(v,n,t) \
281 (v = (t*)safexrealloc((Malloc_t)(v),(MEM_SIZE)((n)*sizeof(t))))
282#define Renewc(v,n,t,c) \
283 (v = (c*)safexrealloc((Malloc_t)(v),(MEM_SIZE)((n)*sizeof(t))))
8c52afec 284#define Safefree(d) safexfree((Malloc_t)(d))
ff68c719 285#define NEWSV(x,len) newSV(x,len)
286
fc36a67e 287#define MAXXCOUNT 1400
8c52afec 288#define MAXY_SIZE 80
289#define MAXYCOUNT 16 /* (MAXY_SIZE/4 + 1) */
290extern long xcount[MAXXCOUNT];
291extern long lastxcount[MAXXCOUNT];
292extern long xycount[MAXXCOUNT][MAXYCOUNT];
293extern long lastxycount[MAXXCOUNT][MAXYCOUNT];
55497cff 294
a687059c 295#endif /* LEAKTEST */
55497cff 296
ff68c719 297#define Move(s,d,n,t) (void)memmove((char*)(d),(char*)(s), (n) * sizeof(t))
298#define Copy(s,d,n,t) (void)memcpy((char*)(d),(char*)(s), (n) * sizeof(t))
299#define Zero(d,n,t) (void)memzero((char*)(d), (n) * sizeof(t))
55497cff 300
a687059c 301#else /* lint */
55497cff 302
ff68c719 303#define New(x,v,n,s) (v = Null(s *))
304#define Newc(x,v,n,s,c) (v = Null(s *))
305#define Newz(x,v,n,s) (v = Null(s *))
306#define Renew(v,n,s) (v = Null(s *))
bee1dbe2 307#define Move(s,d,n,t)
a687059c 308#define Copy(s,d,n,t)
309#define Zero(d,n,t)
ff68c719 310#define Safefree(d) (d) = (d)
55497cff 311
a687059c 312#endif /* lint */
bee1dbe2 313
2304df62 314#ifdef USE_STRUCT_COPY
ff68c719 315#define StructCopy(s,d,t) (*((t*)(d)) = *((t*)(s)))
bee1dbe2 316#else
317#define StructCopy(s,d,t) Copy(s,d,1,t)
318#endif