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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) 2002-2019 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.
47 *
48 * Note that on the extremely rare platforms that do not provide integer
49 * types that are _exactly_ 16 and 32~bits wide (e.g., some old Crays where
50 * `int` is 36~bits), we do not make any guarantee about the correct
51 * behaviour of FreeType~2 with all fonts.
52 *
53 * In these cases, `ftconfig.h` will refuse to compile anyway with a
54 * message like 'couldn't find 32-bit type' or something similar.
55 *
56 */
57
58
59#include <limits.h>
60
61#define FT_CHAR_BIT CHAR_BIT
62#define FT_USHORT_MAX USHRT_MAX
63#define FT_INT_MAX INT_MAX
64#define FT_INT_MIN INT_MIN
65#define FT_UINT_MAX UINT_MAX
66#define FT_LONG_MIN LONG_MIN
67#define FT_LONG_MAX LONG_MAX
68#define FT_ULONG_MAX ULONG_MAX
69
70
71 /**************************************************************************
72 *
73 * character and string processing
74 *
75 */
76
77
78#include <string.h>
79
80#define ft_memchr memchr
81#define ft_memcmp memcmp
82#define ft_memcpy memcpy
83#define ft_memmove memmove
84#define ft_memset memset
85#define ft_strcat strcat
86#define ft_strcmp strcmp
87#define ft_strcpy strcpy
88#define ft_strlen strlen
89#define ft_strncmp strncmp
90#define ft_strncpy strncpy
91#define ft_strrchr strrchr
92#define ft_strstr strstr
93
94
95 /**************************************************************************
96 *
97 * file handling
98 *
99 */
100
101
102#include <stdio.h>
103
104#define FT_FILE FILE
105#define ft_fclose fclose
106#define ft_fopen fopen
107#define ft_fread fread
108#define ft_fseek fseek
109#define ft_ftell ftell
110#define ft_sprintf sprintf
111
112
113 /**************************************************************************
114 *
115 * sorting
116 *
117 */
118
119
120#include <stdlib.h>
121
122#define ft_qsort qsort
123
124
125 /**************************************************************************
126 *
127 * memory allocation
128 *
129 */
130
131
132#define ft_scalloc calloc
133#define ft_sfree free
134#define ft_smalloc malloc
135#define ft_srealloc realloc
136
137
138 /**************************************************************************
139 *
140 * miscellaneous
141 *
142 */
143
144
145#define ft_strtol strtol
146#define ft_getenv getenv
147
148
149 /**************************************************************************
150 *
151 * execution control
152 *
153 */
154
155
156#include <setjmp.h>
157
158#define ft_jmp_buf jmp_buf /* note: this cannot be a typedef since */
159 /* `jmp_buf` is defined as a macro */
160 /* on certain platforms */
161
162#define ft_longjmp longjmp
163#define ft_setjmp( b ) setjmp( *(ft_jmp_buf*) &(b) ) /* same thing here */
164
165
166 /* The following is only used for debugging purposes, i.e., if */
167 /* `FT_DEBUG_LEVEL_ERROR` or `FT_DEBUG_LEVEL_TRACE` are defined. */
168
169#include <stdarg.h>
170
171
172#endif /* FTSTDLIB_H_ */
173
174
175/* END */