libstdc++: cstdint Source File

libstdc++

cstdint
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1// <cstdint> -*- C++ -*-
2
3// Copyright (C) 2007-2026 Free Software Foundation, Inc.
4//
5// This file is part of the GNU ISO C++ Library. This library is free
6// software; you can redistribute it and/or modify it under the
7// terms of the GNU General Public License as published by the
8// Free Software Foundation; either version 3, or (at your option)
9// any later version.
10
11// This library is distributed in the hope that it will be useful,
12// but WITHOUT ANY WARRANTY; without even the implied warranty of
13// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14// GNU General Public License for more details.
15
16// Under Section 7 of GPL version 3, you are granted additional
17// permissions described in the GCC Runtime Library Exception, version
18// 3.1, as published by the Free Software Foundation.
19
20// You should have received a copy of the GNU General Public License and
21// a copy of the GCC Runtime Library Exception along with this program;
22// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
23// <http://www.gnu.org/licenses/>.
24
25/** @file include/cstdint
26 * This is a Standard C++ Library header.
27 */
28
29#ifndef _GLIBCXX_CSTDINT
30#define _GLIBCXX_CSTDINT 1
31
32#ifdef _GLIBCXX_SYSHDR
33#pragma GCC system_header
34#endif
35
36#if __cplusplus < 201103L
37# include <bits/c++0x_warning.h>
38#else
39
40#include <bits/c++config.h>
41
42#if ! _GLIBCXX_HOSTED && __has_include(<stdint-gcc.h>)
43// For --disable-hosted-libstdcxx we want GCC's own stdint-gcc.h header
44// even when -ffreestanding isn't used.
45# include <stdint-gcc.h>
46#elif __has_include(<stdint.h>)
47# include <stdint.h>
48#endif
49
50namespace std
51{
52#ifdef _GLIBCXX_USE_C99_STDINT
53 using ::int8_t;
54 using ::int16_t;
55 using ::int32_t;
56 using ::int64_t;
57
58 using ::int_fast8_t;
59 using ::int_fast16_t;
60 using ::int_fast32_t;
61 using ::int_fast64_t;
62
63 using ::int_least8_t;
64 using ::int_least16_t;
65 using ::int_least32_t;
66 using ::int_least64_t;
67
68 using ::intmax_t;
69 using ::intptr_t;
70
71 using ::uint8_t;
72 using ::uint16_t;
73 using ::uint32_t;
74 using ::uint64_t;
75
76 using ::uint_fast8_t;
77 using ::uint_fast16_t;
78 using ::uint_fast32_t;
79 using ::uint_fast64_t;
80
81 using ::uint_least8_t;
82 using ::uint_least16_t;
83 using ::uint_least32_t;
84 using ::uint_least64_t;
85
86 using ::uintmax_t;
87 using ::uintptr_t;
88#else // !_GLIBCXX_USE_C99_STDINT
89
90 using intmax_t = __INTMAX_TYPE__;
91 using uintmax_t = __UINTMAX_TYPE__;
92
93#ifdef __INT8_TYPE__
94 using int8_t = __INT8_TYPE__;
95#endif
96#ifdef __INT16_TYPE__
97 using int16_t = __INT16_TYPE__;
98#endif
99#ifdef __INT32_TYPE__
100 using int32_t = __INT32_TYPE__;
101#endif
102#ifdef __INT64_TYPE__
103 using int64_t = __INT64_TYPE__;
104#endif
105
106 using int_least8_t = __INT_LEAST8_TYPE__;
107 using int_least16_t = __INT_LEAST16_TYPE__;
108 using int_least32_t = __INT_LEAST32_TYPE__;
109 using int_least64_t = __INT_LEAST64_TYPE__;
110 using int_fast8_t = __INT_FAST8_TYPE__;
111 using int_fast16_t = __INT_FAST16_TYPE__;
112 using int_fast32_t = __INT_FAST32_TYPE__;
113 using int_fast64_t = __INT_FAST64_TYPE__;
114
115#ifdef __INTPTR_TYPE__
116 using intptr_t = __INTPTR_TYPE__;
117#endif
118
119#ifdef __UINT8_TYPE__
120 using uint8_t = __UINT8_TYPE__;
121#endif
122#ifdef __UINT16_TYPE__
123 using uint16_t = __UINT16_TYPE__;
124#endif
125#ifdef __UINT32_TYPE__
126 using uint32_t = __UINT32_TYPE__;
127#endif
128#ifdef __UINT64_TYPE__
129 using uint64_t = __UINT64_TYPE__;
130#endif
131 using uint_least8_t = __UINT_LEAST8_TYPE__;
132 using uint_least16_t = __UINT_LEAST16_TYPE__;
133 using uint_least32_t = __UINT_LEAST32_TYPE__;
134 using uint_least64_t = __UINT_LEAST64_TYPE__;
135 using uint_fast8_t = __UINT_FAST8_TYPE__;
136 using uint_fast16_t = __UINT_FAST16_TYPE__;
137 using uint_fast32_t = __UINT_FAST32_TYPE__;
138 using uint_fast64_t = __UINT_FAST64_TYPE__;
139#ifdef __UINTPTR_TYPE__
140 using uintptr_t = __UINTPTR_TYPE__;
141#endif
142
143#endif // _GLIBCXX_USE_C99_STDINT
144} // namespace std
145
146#endif // C++11
147
148#endif // _GLIBCXX_CSTDINT
c++0x_warning.h
c++config.h
std
ISO C++ entities toplevel namespace is std.