JasPer: jas_types.h Source File

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jas_types.h
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1/*
2 * Copyright (c) 1999-2000 Image Power, Inc. and the University of
3 * British Columbia.
4 * Copyright (c) 2001-2003 Michael David Adams.
5 * All rights reserved.
6 */
7
8/* __START_OF_JASPER_LICENSE__
9 *
10 * JasPer License Version 2.0
11 *
12 * Copyright (c) 2001-2006 Michael David Adams
13 * Copyright (c) 1999-2000 Image Power, Inc.
14 * Copyright (c) 1999-2000 The University of British Columbia
15 *
16 * All rights reserved.
17 *
18 * Permission is hereby granted, free of charge, to any person (the
19 * "User") obtaining a copy of this software and associated documentation
20 * files (the "Software"), to deal in the Software without restriction,
21 * including without limitation the rights to use, copy, modify, merge,
22 * publish, distribute, and/or sell copies of the Software, and to permit
23 * persons to whom the Software is furnished to do so, subject to the
24 * following conditions:
25 *
26 * 1. The above copyright notices and this permission notice (which
27 * includes the disclaimer below) shall be included in all copies or
28 * substantial portions of the Software.
29 *
30 * 2. The name of a copyright holder shall not be used to endorse or
31 * promote products derived from the Software without specific prior
32 * written permission.
33 *
34 * THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS
35 * LICENSE. NO USE OF THE SOFTWARE IS AUTHORIZED HEREUNDER EXCEPT UNDER
36 * THIS DISCLAIMER. THE SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS
37 * "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
38 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
39 * PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. IN NO
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52 * IS NOT FAULT-TOLERANT AND IS NOT INTENDED FOR USE IN MISSION-CRITICAL
53 * SYSTEMS, SUCH AS THOSE USED IN THE OPERATION OF NUCLEAR FACILITIES,
54 * AIRCRAFT NAVIGATION OR COMMUNICATION SYSTEMS, AIR TRAFFIC CONTROL
55 * SYSTEMS, DIRECT LIFE SUPPORT MACHINES, OR WEAPONS SYSTEMS, IN WHICH
56 * THE FAILURE OF THE SOFTWARE OR SYSTEM COULD LEAD DIRECTLY TO DEATH,
57 * PERSONAL INJURY, OR SEVERE PHYSICAL OR ENVIRONMENTAL DAMAGE ("HIGH
58 * RISK ACTIVITIES"). THE COPYRIGHT HOLDERS SPECIFICALLY DISCLAIM ANY
59 * EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR HIGH RISK ACTIVITIES.
60 *
61 * __END_OF_JASPER_LICENSE__
62 */
63
69#ifndef JAS_TYPES_H
70#define JAS_TYPES_H
71
72/* The configuration header file should be included first. */
73#include <jasper/jas_config.h>
74
75/* Note: The immediately following header files should eventually be removed. */
76#include <stddef.h> /* IWYU pragma: export */
77#include <stdint.h> /* IWYU pragma: export */
78
79#include <limits.h> /* IWYU pragma: export */
80
81#if defined(JAS_HAVE_SYS_TYPES_H)
82#include <sys/types.h> /* IWYU pragma: export */
83#endif
84
85#ifdef __cplusplus
86extern "C" {
87#endif
88
89#define jas_uchar unsigned char
90#define jas_uint unsigned int
91#define jas_ulong unsigned long
92#define jas_longlong long long
93#define jas_ulonglong unsigned long long
94
95#if !defined(JAS_NO_SET_SSIZE_T)
96# if !defined(SSIZE_MAX)
97# if (JAS_SIZEOF_INT == JAS_SIZEOF_SIZE_T)
98# define ssize_t int
99# define SSIZE_MAX INT_MAX
100# elif (JAS_SIZEOF_LONG == JAS_SIZEOF_SIZE_T)
101# define ssize_t long
102# define SSIZE_MAX LONG_MAX
103# else
104# define ssize_t jas_longlong
105# define SSIZE_MAX LLONG_MAX
106# endif
107# endif
108#endif
109
110#if 0
111#if defined(JAS_HAVE_SSIZE_T)
112#define jas_ssize_t ssize_t
113#define JAS_SSIZE_MAX SSIZE_MAX
114#else
115#define jas_ssize_t jas_longlong
116#define JAS_SSIZE_MAX LLONG_MAX
117#endif
118#endif
119
120#if defined(_MSC_VER) && (_MSC_VER < 1800)
121#define bool int
122#define false 0
123#define true 1
124
125#define PRIxFAST32 "x"
126#define PRIxFAST16 PRIxFAST32
127#define PRIuFAST32 "u"
128#define PRIuFAST16 PRIuFAST32
129#define PRIiFAST32 "i"
130#ifdef _WIN64
131 #define PRIdPTR "lld"
132#else
133 #define PRIdPTR "d"
134#endif
135
136#ifndef _HUGE_ENUF
137 #define _HUGE_ENUF 1e+300
138#endif
139
140#define INFINITY ((float)(_HUGE_ENUF * _HUGE_ENUF))
141
142#define strtoull _strtoui64
143
144#else
145#include <stdbool.h> /* IWYU pragma: export */
146#include <inttypes.h> /* IWYU pragma: export */
147#endif
148
149/* The below macro is intended to be used for type casts. By using this
150 macro, type casts can be easily located in the source code with
151 tools like "grep". */
152#define JAS_CAST(t, e) \
153 ((t) (e))
154
155/* The number of bits in the integeral type uint_fast32_t. */
156/* NOTE: This could underestimate the size on some exotic architectures. */
157#define JAS_UINTFAST32_NUMBITS (8 * sizeof(uint_fast32_t))
158
159#if 0
160#if defined(JAS_HAVE_MAX_ALIGN_T)
161#define jas_max_align_t max_align_t
162#else
163#define jas_max_align_t long double
164#endif
165#endif
166
167/*
168Assume that a compiler claiming to be compliant with C11 or a later version
169of the C standard provides a suitable definition of max_align_t.
170The JAS_NO_SET_MAX_ALIGN_T preprocessor symbol can be used to override
171this behavior.
172*/
173#if defined(JAS_NO_SET_MAX_ALIGN_T)
174 /*
175 The user of this header is assuming responsibility for providing a
176 suitable definition for max_align_t.
177 */
178#elif defined(_MSC_VER)
179 /*
180 Define max_align_t as a preprocessor symbol since using typedef will
181 cause problems.
182 */
183# define max_align_t long double
184#elif !(defined(__STDC_VERSION__) && (__STDC_VERSION__ - 0 >= 201112L))
185# define max_align_t long double
186#endif
187
188#if 0
189#if defined(JAS_HAVE_UINTMAX_T)
190#define jas_uintmax_t uintmax_t
191#else
192#define jas_uintmax_t uint_fast64_t
193#endif
194#endif
195
196#if 0
197#if defined(JAS_HAVE_INTMAX_T)
198#define jas_intmax_t intmax_t
199#else
200#define jas_intmax_t int_fast64_t
201#endif
202#endif
203
204#ifdef __cplusplus
205}
206#endif
207
208#endif