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ftstdlib.h
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1/****************************************************************************
2 *
3 * ftstdlib.h
4 *
5 * ANSI-specific library and header configuration file (specification
6 * only).
7 *
8 * Copyright (C) 2002-2024 by
9 * David Turner, Robert Wilhelm, and Werner Lemberg.
10 *
11 * This file is part of the FreeType project, and may only be used,
12 * modified, and distributed under the terms of the FreeType project
13 * license, LICENSE.TXT. By continuing to use, modify, or distribute
14 * this file you indicate that you have read the license and
15 * understand and accept it fully.
16 *
17 */
18
19
20 /**************************************************************************
21 *
22 * This file is used to group all `#includes` to the ANSI~C library that
23 * FreeType normally requires. It also defines macros to rename the
24 * standard functions within the FreeType source code.
25 *
26 * Load a file which defines `FTSTDLIB_H_` before this one to override it.
27 *
28 */
29
30
31#ifndef FTSTDLIB_H_
32#define FTSTDLIB_H_
33
34
35#include <stddef.h>
36
37#define ft_ptrdiff_t ptrdiff_t
38
39
40 /**************************************************************************
41 *
42 * integer limits
43 *
44 * `UINT_MAX` and `ULONG_MAX` are used to automatically compute the size of
45 * `int` and `long` in bytes at compile-time. So far, this works for all
46 * platforms the library has been tested on. We also check `ULLONG_MAX`
47 * to see whether we can use 64-bit `long long` later on.
48 *
49 * Note that on the extremely rare platforms that do not provide integer
50 * types that are _exactly_ 16 and 32~bits wide (e.g., some old Crays where
51 * `int` is 36~bits), we do not make any guarantee about the correct
52 * behaviour of FreeType~2 with all fonts.
53 *
54 * In these cases, `ftconfig.h` will refuse to compile anyway with a
55 * message like 'couldn't find 32-bit type' or something similar.
56 *
57 */
58
59
60#include <limits.h>
61
62#define FT_CHAR_BIT CHAR_BIT
63#define FT_USHORT_MAX USHRT_MAX
64#define FT_INT_MAX INT_MAX
65#define FT_INT_MIN INT_MIN
66#define FT_UINT_MAX UINT_MAX
67#define FT_LONG_MIN LONG_MIN
68#define FT_LONG_MAX LONG_MAX
69#define FT_ULONG_MAX ULONG_MAX
70#ifdef LLONG_MAX
71#define FT_LLONG_MAX LLONG_MAX
72#endif
73#ifdef LLONG_MIN
74#define FT_LLONG_MIN LLONG_MIN
75#endif
76#ifdef ULLONG_MAX
77#define FT_ULLONG_MAX ULLONG_MAX
78#endif
79
80
81 /**************************************************************************
82 *
83 * character and string processing
84 *
85 */
86
87
88#include <string.h>
89
90#define ft_memchr memchr
91#define ft_memcmp memcmp
92#define ft_memcpy memcpy
93#define ft_memmove memmove
94#define ft_memset memset
95#define ft_strcat strcat
96#define ft_strcmp strcmp
97#define ft_strcpy strcpy
98#define ft_strlen strlen
99#define ft_strncmp strncmp
100#define ft_strncpy strncpy
101#define ft_strrchr strrchr
102#define ft_strstr strstr
103
104
105 /**************************************************************************
106 *
107 * file handling
108 *
109 */
110
111
112#include <stdio.h>
113
114#define FT_FILE FILE
115#define ft_fclose fclose
116#define ft_fopen fopen
117#define ft_fread fread
118#define ft_fseek fseek
119#define ft_ftell ftell
120#define ft_snprintf snprintf
121
122
123 /**************************************************************************
124 *
125 * sorting
126 *
127 */
128
129
130#include <stdlib.h>
131
132#define ft_qsort qsort
133
134
135 /**************************************************************************
136 *
137 * memory allocation
138 *
139 */
140
141
142#define ft_scalloc calloc
143#define ft_sfree free
144#define ft_smalloc malloc
145#define ft_srealloc realloc
146
147
148 /**************************************************************************
149 *
150 * miscellaneous
151 *
152 */
153
154
155#define ft_strtol strtol
156#define ft_getenv getenv
157
158
159 /**************************************************************************
160 *
161 * execution control
162 *
163 */
164
165
166#include <setjmp.h>
167
168#define ft_jmp_buf jmp_buf /* note: this cannot be a typedef since */
169 /* `jmp_buf` is defined as a macro */
170 /* on certain platforms */
171
172#define ft_longjmp longjmp
173#define ft_setjmp( b ) setjmp( *(ft_jmp_buf*) &(b) ) /* same thing here */
174
175
176 /* The following is only used for debugging purposes, i.e., if */
177 /* `FT_DEBUG_LEVEL_ERROR` or `FT_DEBUG_LEVEL_TRACE` are defined. */
178
179#include <stdarg.h>
180
181
182#endif /* FTSTDLIB_H_ */
183
184
185/* END */