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The C and C++ Include Header Files

/usr/include/c++/13/cstdint


$ cat -n /usr/include/c++/13/cstdint

     1	// <cstdint> -*- C++ -*-
     2	
     3	// Copyright (C) 2007-2023 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	#pragma GCC system_header
    33	
    34	#if __cplusplus < 201103L
    35	# include <bits/c++0x_warning.h>
    36	#else
    37	
    38	#include <bits/c++config.h>
    39	
    40	#if ! _GLIBCXX_HOSTED && __has_include(<stdint-gcc.h>)
    41	// For --disable-hosted-libstdcxx we want GCC's own stdint-gcc.h header
    42	// even when -ffreestanding isn't used.
    43	# include <stdint-gcc.h>
    44	#elif __has_include(<stdint.h>)
    45	# include <stdint.h>
    46	#endif
    47	
    48	namespace std
    49	{
    50	#ifdef _GLIBCXX_USE_C99_STDINT_TR1
    51	  using ::int8_t;
    52	  using ::int16_t;
    53	  using ::int32_t;
    54	  using ::int64_t;
    55	
    56	  using ::int_fast8_t;
    57	  using ::int_fast16_t;
    58	  using ::int_fast32_t;
    59	  using ::int_fast64_t;
    60	
    61	  using ::int_least8_t;
    62	  using ::int_least16_t;
    63	  using ::int_least32_t;
    64	  using ::int_least64_t;
    65	
    66	  using ::intmax_t;
    67	  using ::intptr_t;
    68	  
    69	  using ::uint8_t;
    70	  using ::uint16_t;
    71	  using ::uint32_t;
    72	  using ::uint64_t;
    73	
    74	  using ::uint_fast8_t;
    75	  using ::uint_fast16_t;
    76	  using ::uint_fast32_t;
    77	  using ::uint_fast64_t;
    78	
    79	  using ::uint_least8_t;
    80	  using ::uint_least16_t;
    81	  using ::uint_least32_t;
    82	  using ::uint_least64_t;
    83	
    84	  using ::uintmax_t;
    85	  using ::uintptr_t;
    86	#else // !_GLIBCXX_USE_C99_STDINT_TR1
    87	
    88	  using intmax_t = __INTMAX_TYPE__;
    89	  using uintmax_t = __UINTMAX_TYPE__;
    90	
    91	#ifdef __INT8_TYPE__
    92	  using int8_t = __INT8_TYPE__;
    93	#endif
    94	#ifdef __INT16_TYPE__
    95	  using int16_t = __INT16_TYPE__;
    96	#endif
    97	#ifdef __INT32_TYPE__
    98	  using int32_t = __INT32_TYPE__;
    99	#endif
   100	#ifdef __INT64_TYPE__
   101	  using int64_t = __INT64_TYPE__;
   102	#endif
   103	
   104	  using int_least8_t = __INT_LEAST8_TYPE__;
   105	  using int_least16_t = __INT_LEAST16_TYPE__;
   106	  using int_least32_t = __INT_LEAST32_TYPE__;
   107	  using int_least64_t = __INT_LEAST64_TYPE__;
   108	  using int_fast8_t = __INT_FAST8_TYPE__;
   109	  using int_fast16_t = __INT_FAST16_TYPE__;
   110	  using int_fast32_t = __INT_FAST32_TYPE__;
   111	  using int_fast64_t = __INT_FAST64_TYPE__;
   112	
   113	#ifdef __INTPTR_TYPE__
   114	  using intptr_t = __INTPTR_TYPE__;
   115	#endif
   116	
   117	#ifdef __UINT8_TYPE__
   118	  using uint8_t = __UINT8_TYPE__;
   119	#endif
   120	#ifdef __UINT16_TYPE__
   121	  using uint16_t = __UINT16_TYPE__;
   122	#endif
   123	#ifdef __UINT32_TYPE__
   124	  using uint32_t = __UINT32_TYPE__;
   125	#endif
   126	#ifdef __UINT64_TYPE__
   127	  using uint64_t = __UINT64_TYPE__;
   128	#endif
   129	  using uint_least8_t = __UINT_LEAST8_TYPE__;
   130	  using uint_least16_t = __UINT_LEAST16_TYPE__;
   131	  using uint_least32_t = __UINT_LEAST32_TYPE__;
   132	  using uint_least64_t = __UINT_LEAST64_TYPE__;
   133	  using uint_fast8_t = __UINT_FAST8_TYPE__;
   134	  using uint_fast16_t = __UINT_FAST16_TYPE__;
   135	  using uint_fast32_t = __UINT_FAST32_TYPE__;
   136	  using uint_fast64_t = __UINT_FAST64_TYPE__;
   137	#ifdef __UINTPTR_TYPE__
   138	  using uintptr_t = __UINTPTR_TYPE__;
   139	#endif
   140	
   141	#endif // _GLIBCXX_USE_C99_STDINT_TR1
   142	} // namespace std
   143	
   144	#endif // C++11
   145	
   146	#endif // _GLIBCXX_CSTDINT