ReactOS 0.4.16-dev-2332-g4cba65d
integer-types.h
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1/****************************************************************************
2 *
3 * config/integer-types.h
4 *
5 * FreeType integer types definitions.
6 *
7 * Copyright (C) 1996-2020 by
8 * David Turner, Robert Wilhelm, and Werner Lemberg.
9 *
10 * This file is part of the FreeType project, and may only be used,
11 * modified, and distributed under the terms of the FreeType project
12 * license, LICENSE.TXT. By continuing to use, modify, or distribute
13 * this file you indicate that you have read the license and
14 * understand and accept it fully.
15 *
16 */
17#ifndef FREETYPE_CONFIG_INTEGER_TYPES_H_
18#define FREETYPE_CONFIG_INTEGER_TYPES_H_
19
20 /* There are systems (like the Texas Instruments 'C54x) where a `char` */
21 /* has 16~bits. ANSI~C says that `sizeof(char)` is always~1. Since an */
22 /* `int` has 16~bits also for this system, `sizeof(int)` gives~1 which */
23 /* is probably unexpected. */
24 /* */
25 /* `CHAR_BIT` (defined in `limits.h`) gives the number of bits in a */
26 /* `char` type. */
27
28#ifndef FT_CHAR_BIT
29#define FT_CHAR_BIT CHAR_BIT
30#endif
31
32#ifndef FT_SIZEOF_INT
33
34 /* The size of an `int` type. */
35#if FT_UINT_MAX == 0xFFFFUL
36#define FT_SIZEOF_INT ( 16 / FT_CHAR_BIT )
37#elif FT_UINT_MAX == 0xFFFFFFFFUL
38#define FT_SIZEOF_INT ( 32 / FT_CHAR_BIT )
39#elif FT_UINT_MAX > 0xFFFFFFFFUL && FT_UINT_MAX == 0xFFFFFFFFFFFFFFFFUL
40#define FT_SIZEOF_INT ( 64 / FT_CHAR_BIT )
41#else
42#error "Unsupported size of `int' type!"
43#endif
44
45#endif /* !defined(FT_SIZEOF_INT) */
46
47#ifndef FT_SIZEOF_LONG
48
49 /* The size of a `long` type. A five-byte `long` (as used e.g. on the */
50 /* DM642) is recognized but avoided. */
51#if FT_ULONG_MAX == 0xFFFFFFFFUL
52#define FT_SIZEOF_LONG ( 32 / FT_CHAR_BIT )
53#elif FT_ULONG_MAX > 0xFFFFFFFFUL && FT_ULONG_MAX == 0xFFFFFFFFFFUL
54#define FT_SIZEOF_LONG ( 32 / FT_CHAR_BIT )
55#elif FT_ULONG_MAX > 0xFFFFFFFFUL && FT_ULONG_MAX == 0xFFFFFFFFFFFFFFFFUL
56#define FT_SIZEOF_LONG ( 64 / FT_CHAR_BIT )
57#else
58#error "Unsupported size of `long' type!"
59#endif
60
61#endif /* !defined(FT_SIZEOF_LONG) */
62
63 /**************************************************************************
64 *
65 * @section:
66 * basic_types
67 *
68 */
69
70
71 /**************************************************************************
72 *
73 * @type:
74 * FT_Int16
75 *
76 * @description:
77 * A typedef for a 16bit signed integer type.
78 */
79 typedef signed short FT_Int16;
80
81
82 /**************************************************************************
83 *
84 * @type:
85 * FT_UInt16
86 *
87 * @description:
88 * A typedef for a 16bit unsigned integer type.
89 */
90 typedef unsigned short FT_UInt16;
91
92 /* */
93
94
95 /* this #if 0 ... #endif clause is for documentation purposes */
96#if 0
97
98 /**************************************************************************
99 *
100 * @type:
101 * FT_Int32
102 *
103 * @description:
104 * A typedef for a 32bit signed integer type. The size depends on the
105 * configuration.
106 */
107 typedef signed XXX FT_Int32;
108
109
110 /**************************************************************************
111 *
112 * @type:
113 * FT_UInt32
114 *
115 * A typedef for a 32bit unsigned integer type. The size depends on the
116 * configuration.
117 */
118 typedef unsigned XXX FT_UInt32;
119
120
121 /**************************************************************************
122 *
123 * @type:
124 * FT_Int64
125 *
126 * A typedef for a 64bit signed integer type. The size depends on the
127 * configuration. Only defined if there is real 64bit support;
128 * otherwise, it gets emulated with a structure (if necessary).
129 */
130 typedef signed XXX FT_Int64;
131
132
133 /**************************************************************************
134 *
135 * @type:
136 * FT_UInt64
137 *
138 * A typedef for a 64bit unsigned integer type. The size depends on the
139 * configuration. Only defined if there is real 64bit support;
140 * otherwise, it gets emulated with a structure (if necessary).
141 */
142 typedef unsigned XXX FT_UInt64;
143
144 /* */
145
146#endif
147
148#if FT_SIZEOF_INT == ( 32 / FT_CHAR_BIT )
149
150 typedef signed int FT_Int32;
151 typedef unsigned int FT_UInt32;
152
153#elif FT_SIZEOF_LONG == ( 32 / FT_CHAR_BIT )
154
155 typedef signed long FT_Int32;
156 typedef unsigned long FT_UInt32;
157
158#else
159#error "no 32bit type found -- please check your configuration files"
160#endif
161
162
163 /* look up an integer type that is at least 32~bits */
164#if FT_SIZEOF_INT >= ( 32 / FT_CHAR_BIT )
165
166 typedef int FT_Fast;
167 typedef unsigned int FT_UFast;
168
169#elif FT_SIZEOF_LONG >= ( 32 / FT_CHAR_BIT )
170
171 typedef long FT_Fast;
172 typedef unsigned long FT_UFast;
173
174#endif
175
176
177 /* determine whether we have a 64-bit `int` type for platforms without */
178 /* Autoconf */
179#if FT_SIZEOF_LONG == ( 64 / FT_CHAR_BIT )
180
181 /* `FT_LONG64` must be defined if a 64-bit type is available */
182#define FT_LONG64
183#define FT_INT64 long
184#define FT_UINT64 unsigned long
185
186 /**************************************************************************
187 *
188 * A 64-bit data type may create compilation problems if you compile in
189 * strict ANSI mode. To avoid them, we disable other 64-bit data types if
190 * `__STDC__` is defined. You can however ignore this rule by defining the
191 * `FT_CONFIG_OPTION_FORCE_INT64` configuration macro.
192 */
193#elif !defined( __STDC__ ) || defined( FT_CONFIG_OPTION_FORCE_INT64 )
194
195#if defined( __STDC_VERSION__ ) && __STDC_VERSION__ >= 199901L
196
197#define FT_LONG64
198#define FT_INT64 long long int
199#define FT_UINT64 unsigned long long int
200
201#elif defined( _MSC_VER ) && _MSC_VER >= 900 /* Visual C++ (and Intel C++) */
202
203 /* this compiler provides the `__int64` type */
204#define FT_LONG64
205#define FT_INT64 __int64
206#define FT_UINT64 unsigned __int64
207
208#elif defined( __BORLANDC__ ) /* Borland C++ */
209
210 /* XXXX: We should probably check the value of `__BORLANDC__` in order */
211 /* to test the compiler version. */
212
213 /* this compiler provides the `__int64` type */
214#define FT_LONG64
215#define FT_INT64 __int64
216#define FT_UINT64 unsigned __int64
217
218#elif defined( __WATCOMC__ ) /* Watcom C++ */
219
220 /* Watcom doesn't provide 64-bit data types */
221
222#elif defined( __MWERKS__ ) /* Metrowerks CodeWarrior */
223
224#define FT_LONG64
225#define FT_INT64 long long int
226#define FT_UINT64 unsigned long long int
227
228#elif defined( __GNUC__ )
229
230 /* GCC provides the `long long` type */
231#define FT_LONG64
232#define FT_INT64 long long int
233#define FT_UINT64 unsigned long long int
234
235#endif /* __STDC_VERSION__ >= 199901L */
236
237#endif /* FT_SIZEOF_LONG == (64 / FT_CHAR_BIT) */
238
239#ifdef FT_LONG64
240 typedef FT_INT64 FT_Int64;
241 typedef FT_UINT64 FT_UInt64;
242#endif
243
244
245#endif /* FREETYPE_CONFIG_INTEGER_TYPES_H_ */
FT_Int64
struct FT_Int64_ FT_Int64
FT_Int16
signed short FT_Int16
Definition: integer-types.h:79
FT_UInt16
unsigned short FT_UInt16
Definition: integer-types.h:90