sdcc/device/include/stddef.h

   1 /*-------------------------------------------------------------------------
   2    stddef.h - ANSI functions forward declarations
   3
   4    Copyright (C) 2004, Maarten Brock / sourceforge.brock@dse.nl
   5    Copyright (C) 2011, Philipp Klaus Krause / pkk@spth.de
   6
   7    This library is free software; you can redistribute it and/or modify it
   8    under the terms of the GNU General Public License as published by the
   9    Free Software Foundation; either version 2, or (at your option) any
  10    later version.
  11
  12    This library is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this library; see the file COPYING. If not, write to the
  19    Free Software Foundation, 51 Franklin Street, Fifth Floor, Boston,
  20    MA 02110-1301, USA.
  21
  22    As a special exception, if you link this library with other files,
  23    some of which are compiled with SDCC, to produce an executable,
  24    this library does not by itself cause the resulting executable to
  25    be covered by the GNU General Public License. This exception does
  26    not however invalidate any other reasons why the executable file
  27    might be covered by the GNU General Public License.
  28 -------------------------------------------------------------------------*/
  29
  30 #ifndef __STDC_VERSION_STDDEF_H__
  31 #define __STDC_VERSION_STDDEF_H__ __STDC_VERSION__
  32
  33 #ifndef NULL
  34   #define NULL ((void *)0)
  35 #endif
  36
  37 #ifndef __PTRDIFF_T_DEFINED
  38 #define __PTRDIFF_T_DEFINED
  39 #if defined (__SDCC_mcs51) || defined (__SDCC_ds390)
  40   typedef long int ptrdiff_t;
  41 #else
  42   typedef int ptrdiff_t; // 16 bit ptrdiff_t is in violation of the ISO C99, C11, C17 standards, but complies with C90 and C23.
  43 #endif
  44 #endif
  45
  46 #ifndef __SIZE_T_DEFINED
  47 #define __SIZE_T_DEFINED
  48   typedef unsigned int size_t;
  49 #endif
  50
  51 #if __STDC_VERSION__ >= 201112L
  52   typedef unsigned char max_align_t;
  53 #endif
  54
  55 #ifndef __WCHAR_T_DEFINED
  56 #define __WCHAR_T_DEFINED
  57   typedef unsigned long int wchar_t;
  58 #endif
  59
  60 /* Bounds-checking interfaces from annex K of the C11 standard. */
  61 #if defined (__STDC_WANT_LIB_EXT1__) && __STDC_WANT_LIB_EXT1__
  62
  63 #ifndef __RSIZE_T_DEFINED
  64 #define __RSIZE_T_DEFINED
  65 typedef size_t rsize_t;
  66 #endif
  67
  68 #ifndef __ERRNO_T_DEFINED
  69 #define __ERRNO_T_DEFINED
  70 typedef int errno_t;
  71 #endif
  72
  73 #endif
  74
  75 #define offsetof(s, m) __builtin_offsetof (s, m)
  76
  77 void __builtin_unreachable(void);
  78 #if __STDC_VERSION__ >= 202311L
  79 #define unreachable __builtin_unreachable
  80
  81 typedef typeof(nullptr) nullptr_t;
  82 #endif
  83
  84 #endif
  85