modernc.org/cc@v1.0.1/v2/headers/linux_386/usr/include/i386-linux-gnu/bits/uintn-identity.h (about)

     1  /* Inline functions to return unsigned integer values unchanged.
     2     Copyright (C) 2017-2018 Free Software Foundation, Inc.
     3     This file is part of the GNU C Library.
     4  
     5     The GNU C Library is free software; you can redistribute it and/or
     6     modify it under the terms of the GNU Lesser General Public
     7     License as published by the Free Software Foundation; either
     8     version 2.1 of the License, or (at your option) any later version.
     9  
    10     The GNU C Library is distributed in the hope that it will be useful,
    11     but WITHOUT ANY WARRANTY; without even the implied warranty of
    12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    13     Lesser General Public License for more details.
    14  
    15     You should have received a copy of the GNU Lesser General Public
    16     License along with the GNU C Library; if not, see
    17     <http://www.gnu.org/licenses/>.  */
    18  
    19  #if !defined _NETINET_IN_H && !defined _ENDIAN_H
    20  # error "Never use <bits/uintn-identity.h> directly; include <netinet/in.h> or <endian.h> instead."
    21  #endif
    22  
    23  #ifndef _BITS_UINTN_IDENTITY_H
    24  #define _BITS_UINTN_IDENTITY_H 1
    25  
    26  #include <bits/types.h>
    27  
    28  /* These inline functions are to ensure the appropriate type
    29     conversions and associated diagnostics from macros that convert to
    30     a given endianness.  */
    31  
    32  static __inline __uint16_t __uint16_identity(__uint16_t __x)
    33  {
    34  	return __x;
    35  }
    36  
    37  static __inline __uint32_t __uint32_identity(__uint32_t __x)
    38  {
    39  	return __x;
    40  }
    41  
    42  static __inline __uint64_t __uint64_identity(__uint64_t __x)
    43  {
    44  	return __x;
    45  }
    46  
    47  #endif				/* _BITS_UINTN_IDENTITY_H.  */