libstdc++/api/a00326_source.html

// <cstdint> -*- C++ -*-


// Copyright (C) 2007-2025 Free Software Foundation, Inc.

//

// This file is part of the GNU ISO C++ Library.  This library is free

// software; you can redistribute it and/or modify it under the

// terms of the GNU General Public License as published by the

// Free Software Foundation; either version 3, or (at your option)

// any later version.


// This library is distributed in the hope that it will be useful,

// but WITHOUT ANY WARRANTY; without even the implied warranty of

// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

// GNU General Public License for more details.


// Under Section 7 of GPL version 3, you are granted additional

// permissions described in the GCC Runtime Library Exception, version

// 3.1, as published by the Free Software Foundation.


// You should have received a copy of the GNU General Public License and

// a copy of the GCC Runtime Library Exception along with this program;

// see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see

// <http://www.gnu.org/licenses/>.


/** @file include/cstdint

 *  This is a Standard C++ Library header.

 */


#ifndef _GLIBCXX_CSTDINT

#define _GLIBCXX_CSTDINT 1


#ifdef _GLIBCXX_SYSHDR

#pragma GCC system_header

#endif


#if __cplusplus < 201103L

# include <bits/c++0x_warning.h>

#else


#include <bits/c++config.h>


#if ! _GLIBCXX_HOSTED && __has_include(<stdint-gcc.h>)

// For --disable-hosted-libstdcxx we want GCC's own stdint-gcc.h header

// even when -ffreestanding isn't used.

# include <stdint-gcc.h>

#elif __has_include(<stdint.h>)

# include <stdint.h>

#endif


namespace std

{

#ifdef _GLIBCXX_USE_C99_STDINT

  using ::int8_t;

  using ::int16_t;

  using ::int32_t;

  using ::int64_t;


  using ::int_fast8_t;

  using ::int_fast16_t;

  using ::int_fast32_t;

  using ::int_fast64_t;


  using ::int_least8_t;

  using ::int_least16_t;

  using ::int_least32_t;

  using ::int_least64_t;


  using ::intmax_t;

  using ::intptr_t;


  using ::uint8_t;

  using ::uint16_t;

  using ::uint32_t;

  using ::uint64_t;


  using ::uint_fast8_t;

  using ::uint_fast16_t;

  using ::uint_fast32_t;

  using ::uint_fast64_t;


  using ::uint_least8_t;

  using ::uint_least16_t;

  using ::uint_least32_t;

  using ::uint_least64_t;


  using ::uintmax_t;

  using ::uintptr_t;

#else // !_GLIBCXX_USE_C99_STDINT


  using intmax_t = __INTMAX_TYPE__;

  using uintmax_t = __UINTMAX_TYPE__;


#ifdef __INT8_TYPE__

  using int8_t = __INT8_TYPE__;

#endif

#ifdef __INT16_TYPE__

  using int16_t = __INT16_TYPE__;

#endif

#ifdef __INT32_TYPE__

  using int32_t = __INT32_TYPE__;

#endif

#ifdef __INT64_TYPE__

  using int64_t = __INT64_TYPE__;

#endif


  using int_least8_t = __INT_LEAST8_TYPE__;

  using int_least16_t = __INT_LEAST16_TYPE__;

  using int_least32_t = __INT_LEAST32_TYPE__;

  using int_least64_t = __INT_LEAST64_TYPE__;

  using int_fast8_t = __INT_FAST8_TYPE__;

  using int_fast16_t = __INT_FAST16_TYPE__;

  using int_fast32_t = __INT_FAST32_TYPE__;

  using int_fast64_t = __INT_FAST64_TYPE__;


#ifdef __INTPTR_TYPE__

  using intptr_t = __INTPTR_TYPE__;

#endif


#ifdef __UINT8_TYPE__

  using uint8_t = __UINT8_TYPE__;

#endif

#ifdef __UINT16_TYPE__

  using uint16_t = __UINT16_TYPE__;

#endif

#ifdef __UINT32_TYPE__

  using uint32_t = __UINT32_TYPE__;

#endif

#ifdef __UINT64_TYPE__

  using uint64_t = __UINT64_TYPE__;

#endif

  using uint_least8_t = __UINT_LEAST8_TYPE__;

  using uint_least16_t = __UINT_LEAST16_TYPE__;

  using uint_least32_t = __UINT_LEAST32_TYPE__;

  using uint_least64_t = __UINT_LEAST64_TYPE__;

  using uint_fast8_t = __UINT_FAST8_TYPE__;

  using uint_fast16_t = __UINT_FAST16_TYPE__;

  using uint_fast32_t = __UINT_FAST32_TYPE__;

  using uint_fast64_t = __UINT_FAST64_TYPE__;

#ifdef __UINTPTR_TYPE__

  using uintptr_t = __UINTPTR_TYPE__;

#endif


#endif // _GLIBCXX_USE_C99_STDINT

} // namespace std


#endif // C++11


#endif // _GLIBCXX_CSTDINT