blob: 16c31d426d77c778c5a8bceffd398ed30323e3f3 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
|
/* Copyright 2016 Google Inc. All Rights Reserved.
Distributed under MIT license.
See file LICENSE for detail or copy at https://opensource.org/licenses/MIT
*/
/* Macros for compiler / platform specific features and build options. */
#ifndef BROTLI_COMMON_PORT_H_
#define BROTLI_COMMON_PORT_H_
/* Compatibility with non-clang compilers. */
#ifndef __has_builtin
#define __has_builtin(x) 0
#endif
#ifndef __has_attribute
#define __has_attribute(x) 0
#endif
#ifndef __has_feature
#define __has_feature(x) 0
#endif
#if defined(__GNUC__) && defined(__GNUC_MINOR__)
#define BROTLI_GCC_VERSION (__GNUC__ * 100 + __GNUC_MINOR__)
#else
#define BROTLI_GCC_VERSION 0
#endif
#if defined(__ICC)
#define BROTLI_ICC_VERSION __ICC
#else
#define BROTLI_ICC_VERSION 0
#endif
#if defined(BROTLI_BUILD_MODERN_COMPILER)
#define BROTLI_MODERN_COMPILER 1
#elif BROTLI_GCC_VERSION >= 304 || BROTLI_ICC_VERSION >= 1600
#define BROTLI_MODERN_COMPILER 1
#else
#define BROTLI_MODERN_COMPILER 0
#endif
/* Define "BROTLI_PREDICT_TRUE" and "BROTLI_PREDICT_FALSE" macros for capable
compilers.
To apply compiler hint, enclose the branching condition into macros, like this:
if (BROTLI_PREDICT_TRUE(zero == 0)) {
// main execution path
} else {
// compiler should place this code outside of main execution path
}
OR:
if (BROTLI_PREDICT_FALSE(something_rare_or_unexpected_happens)) {
// compiler should place this code outside of main execution path
}
*/
#if BROTLI_MODERN_COMPILER || __has_builtin(__builtin_expect)
#define BROTLI_PREDICT_TRUE(x) (__builtin_expect(!!(x), 1))
#define BROTLI_PREDICT_FALSE(x) (__builtin_expect(x, 0))
#else
#define BROTLI_PREDICT_FALSE(x) (x)
#define BROTLI_PREDICT_TRUE(x) (x)
#endif
#if BROTLI_MODERN_COMPILER || __has_attribute(always_inline)
#define BROTLI_ATTRIBUTE_ALWAYS_INLINE __attribute__ ((always_inline))
#else
#define BROTLI_ATTRIBUTE_ALWAYS_INLINE
#endif
#if defined(_WIN32) || defined(__CYGWIN__)
#define BROTLI_ATTRIBUTE_VISIBILITY_HIDDEN
#elif BROTLI_MODERN_COMPILER || __has_attribute(visibility)
#define BROTLI_ATTRIBUTE_VISIBILITY_HIDDEN \
__attribute__ ((visibility ("hidden")))
#else
#define BROTLI_ATTRIBUTE_VISIBILITY_HIDDEN
#endif
#ifndef BROTLI_INTERNAL
#define BROTLI_INTERNAL BROTLI_ATTRIBUTE_VISIBILITY_HIDDEN
#endif
#if defined(BROTLI_SHARED_COMPILATION) && defined(_WIN32)
#if defined(BROTLICOMMON_SHARED_COMPILATION)
#define BROTLI_COMMON_API __declspec(dllexport)
#else
#define BROTLI_COMMON_API __declspec(dllimport)
#endif /* BROTLICOMMON_SHARED_COMPILATION */
#if defined(BROTLIDEC_SHARED_COMPILATION)
#define BROTLI_DEC_API __declspec(dllexport)
#else
#define BROTLI_DEC_API __declspec(dllimport)
#endif /* BROTLIDEC_SHARED_COMPILATION */
#if defined(BROTLIENC_SHARED_COMPILATION)
#define BROTLI_ENC_API __declspec(dllexport)
#else
#define BROTLI_ENC_API __declspec(dllimport)
#endif /* BROTLIENC_SHARED_COMPILATION */
#else /* BROTLI_SHARED_COMPILATION && _WIN32 */
#define BROTLI_COMMON_API
#define BROTLI_DEC_API
#define BROTLI_ENC_API
#endif
#ifndef _MSC_VER
#if defined(__cplusplus) || !defined(__STRICT_ANSI__) || \
(defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L)
#define BROTLI_INLINE inline BROTLI_ATTRIBUTE_ALWAYS_INLINE
#else
#define BROTLI_INLINE
#endif
#else /* _MSC_VER */
#define BROTLI_INLINE __forceinline
#endif /* _MSC_VER */
#if !defined(__cplusplus) && !defined(c_plusplus) && \
(defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L)
#define BROTLI_RESTRICT restrict
#elif BROTLI_GCC_VERSION > 295 || defined(__llvm__)
#define BROTLI_RESTRICT __restrict
#else
#define BROTLI_RESTRICT
#endif
#if BROTLI_MODERN_COMPILER || __has_attribute(noinline)
#define BROTLI_NOINLINE __attribute__((noinline))
#else
#define BROTLI_NOINLINE
#endif
#if BROTLI_MODERN_COMPILER || __has_attribute(deprecated)
#define BROTLI_DEPRECATED __attribute__((deprecated))
#else
#define BROTLI_DEPRECATED
#endif
#define BROTLI_UNUSED(X) (void)(X)
#endif /* BROTLI_COMMON_PORT_H_ */
|
