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Fix type mismatches in x2p's safe{alloc,realloc,free}.
[perl5.git] / handy.h
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a0d0e21e 1/* handy.h
a687059c 2 *
a0d0e21e 3 * Copyright (c) 1991-1994, Larry Wall
a687059c 4 *
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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 *
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8 */
9
85e6fe83 10#if !defined(__STDC__)
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11#ifdef NULL
12#undef NULL
13#endif
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14#ifndef I286
15# define NULL 0
16#else
17# define NULL 0L
18#endif
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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
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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
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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.
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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
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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
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67#ifndef HAS_BOOL
68# ifdef UTS
69# define bool int
70# else
71# define bool char
72# endif
a687059c 73#endif
0d3e774c 74
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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
84*/
85
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86typedef char I8;
87typedef unsigned char U8;
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88/* I8_MAX and I8_MIN constants are not defined, as I8 is an ambiguous type.
89 Please search CHAR_MAX in perl.h for further details. */
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90#define U8_MAX PERL_UCHAR_MAX
91#define U8_MIN PERL_UCHAR_MIN
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92
93typedef short I16;
94typedef unsigned short U16;
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95#define I16_MAX PERL_SHORT_MAX
96#define I16_MIN PERL_SHORT_MIN
97#define U16_MAX PERL_USHORT_MAX
98#define U16_MIN PERL_USHORT_MIN
79072805 99
a0d0e21e 100#if BYTEORDER > 0x4321
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101 typedef int I32;
102 typedef unsigned int U32;
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103# define I32_MAX PERL_INT_MAX
104# define I32_MIN PERL_INT_MIN
105# define U32_MAX PERL_UINT_MAX
106# define U32_MIN PERL_UINT_MIN
79072805 107#else
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108 typedef long I32;
109 typedef unsigned long U32;
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110# define I32_MAX PERL_LONG_MAX
111# define I32_MIN PERL_LONG_MIN
112# define U32_MAX PERL_ULONG_MAX
113# define U32_MIN PERL_ULONG_MIN
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114#endif
115
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116#define Ctl(ch) (ch & 037)
117
118#define strNE(s1,s2) (strcmp(s1,s2))
119#define strEQ(s1,s2) (!strcmp(s1,s2))
120#define strLT(s1,s2) (strcmp(s1,s2) < 0)
121#define strLE(s1,s2) (strcmp(s1,s2) <= 0)
122#define strGT(s1,s2) (strcmp(s1,s2) > 0)
123#define strGE(s1,s2) (strcmp(s1,s2) >= 0)
124#define strnNE(s1,s2,l) (strncmp(s1,s2,l))
125#define strnEQ(s1,s2,l) (!strncmp(s1,s2,l))
378cc40b 126
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127#ifdef HAS_SETLOCALE /* XXX Is there a better test for this? */
128# ifndef CTYPE256
129# define CTYPE256
130# endif
131#endif
132
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133#ifdef USE_NEXT_CTYPE
134#define isALNUM(c) (NXIsAlpha((unsigned int)c) || NXIsDigit((unsigned int)c) || c == '_')
135#define isIDFIRST(c) (NXIsAlpha((unsigned int)c) || c == '_')
136#define isALPHA(c) NXIsAlpha((unsigned int)c)
137#define isSPACE(c) NXIsSpace((unsigned int)c)
138#define isDIGIT(c) NXIsDigit((unsigned int)c)
139#define isUPPER(c) NXIsUpper((unsigned int)c)
140#define isLOWER(c) NXIsLower((unsigned int)c)
141#define toUPPER(c) NXToUpper((unsigned int)c)
142#define toLOWER(c) NXToLower((unsigned int)c)
143#else /* USE_NEXT_CTYPE */
bee1dbe2 144#if defined(CTYPE256) || (!defined(isascii) && !defined(HAS_ISASCII))
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145#define isALNUM(c) (isalpha((unsigned char)(c)) || isdigit((unsigned char)(c)) || c == '_')
146#define isIDFIRST(c) (isalpha((unsigned char)(c)) || (c) == '_')
147#define isALPHA(c) isalpha((unsigned char)(c))
148#define isSPACE(c) isspace((unsigned char)(c))
149#define isDIGIT(c) isdigit((unsigned char)(c))
150#define isUPPER(c) isupper((unsigned char)(c))
151#define isLOWER(c) islower((unsigned char)(c))
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152#define toUPPER(c) toupper((unsigned char)(c))
153#define toLOWER(c) tolower((unsigned char)(c))
55204971 154#else
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155#define isALNUM(c) (isascii(c) && (isalpha(c) || isdigit(c) || c == '_'))
156#define isIDFIRST(c) (isascii(c) && (isalpha(c) || (c) == '_'))
157#define isALPHA(c) (isascii(c) && isalpha(c))
158#define isSPACE(c) (isascii(c) && isspace(c))
159#define isDIGIT(c) (isascii(c) && isdigit(c))
160#define isUPPER(c) (isascii(c) && isupper(c))
161#define isLOWER(c) (isascii(c) && islower(c))
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162#define toUPPER(c) toupper(c)
163#define toLOWER(c) tolower(c)
55204971 164#endif
a0d0e21e 165#endif /* USE_NEXT_CTYPE */
55204971 166
378cc40b 167/* Line numbers are unsigned, 16 bits. */
79072805 168typedef U16 line_t;
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169#ifdef lint
170#define NOLINE ((line_t)0)
171#else
172#define NOLINE ((line_t) 65535)
173#endif
174
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175/* XXX LEAKTEST doesn't really work in perl5. There are direct calls to
176 safemalloc() in the source, so LEAKTEST won't pick them up.
177 Further, if you try LEAKTEST, you'll also end up calling
178 Safefree, which might call safexfree() on some things that weren't
179 malloced with safexmalloc. The correct "fix" to this, if anyone
180 is interested, is to ensure that all calls go through the New and
181 Renew macros.
182 --Andy Dougherty August 1996
183*/
55497cff 184
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185#ifndef lint
186#ifndef LEAKTEST
598a3d64 187
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188#define New(x,v,n,t) (v = (t*)safemalloc((MEM_SIZE)((n) * sizeof(t))))
189#define Newc(x,v,n,t,c) (v = (c*)safemalloc((MEM_SIZE)((n) * sizeof(t))))
190#define Newz(x,v,n,t) (v = (t*)safemalloc((MEM_SIZE)((n) * sizeof(t)))), \
bee1dbe2 191 memzero((char*)(v), (n) * sizeof(t))
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192#define Renew(v,n,t) (v = (t*)saferealloc((Malloc_t)(v),(MEM_SIZE)((n)*sizeof(t))))
193#define Renewc(v,n,t,c) (v = (c*)saferealloc((Malloc_t)(v),(MEM_SIZE)((n)*sizeof(t))))
44ae4f4f 194#define Safefree(d) safefree((Malloc_t)(d))
79072805 195#define NEWSV(x,len) newSV(len)
55497cff 196
a687059c 197#else /* LEAKTEST */
55497cff 198
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199#define New(x,v,n,t) (v = (t*)safexmalloc(x,(MEM_SIZE)((n) * sizeof(t))))
200#define Newc(x,v,n,t,c) (v = (c*)safexmalloc(x,(MEM_SIZE)((n) * sizeof(t))))
201#define Newz(x,v,n,t) (v = (t*)safexmalloc(x,(MEM_SIZE)((n) * sizeof(t)))), \
bee1dbe2 202 memzero((char*)(v), (n) * sizeof(t))
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203#define Renew(v,n,t) (v = (t*)safexrealloc((Malloc_t)(v),(MEM_SIZE)((n)*sizeof(t))))
204#define Renewc(v,n,t,c) (v = (c*)safexrealloc((Malloc_t)(v),(MEM_SIZE)((n)*sizeof(t))))
205#define Safefree(d) safexfree((Malloc_t)d)
79072805 206#define NEWSV(x,len) newSV(x,len)
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207#define MAXXCOUNT 1200
208long xcount[MAXXCOUNT];
209long lastxcount[MAXXCOUNT];
55497cff 210
a687059c 211#endif /* LEAKTEST */
55497cff 212
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213#define Move(s,d,n,t) (void)memmove((char*)(d),(char*)(s), (n) * sizeof(t))
214#define Copy(s,d,n,t) (void)memcpy((char*)(d),(char*)(s), (n) * sizeof(t))
215#define Zero(d,n,t) (void)memzero((char*)(d), (n) * sizeof(t))
55497cff 216
a687059c 217#else /* lint */
55497cff 218
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219#define New(x,v,n,s) (v = Null(s *))
220#define Newc(x,v,n,s,c) (v = Null(s *))
221#define Newz(x,v,n,s) (v = Null(s *))
222#define Renew(v,n,s) (v = Null(s *))
bee1dbe2 223#define Move(s,d,n,t)
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224#define Copy(s,d,n,t)
225#define Zero(d,n,t)
226#define Safefree(d) d = d
55497cff 227
a687059c 228#endif /* lint */
bee1dbe2 229
2304df62 230#ifdef USE_STRUCT_COPY
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231#define StructCopy(s,d,t) *((t*)(d)) = *((t*)(s))
232#else
233#define StructCopy(s,d,t) Copy(s,d,1,t)
234#endif