compiler.h

   1 /* ----------------------------------------------------------------------- *
   2  *
   3  *   Copyright 2007 The NASM Authors - All Rights Reserved
   4  *
   5  *   This program is free software; you can redistribute it and/or modify
   6  *   it under the terms of the license given in the file "LICENSE"
   7  *   distributed in the NASM archive.
   8  *
   9  * ----------------------------------------------------------------------- */
  10
  11 /*
  12  * compiler.h
  13  *
  14  * Compiler-specific macros for NASM.  Feel free to add support for
  15  * other compilers in here.
  16  *
  17  * This header file should be included before any other header.
  18  */
  19
  20 #ifndef NASM_COMPILER_H
  21 #define NASM_COMPILER_H 1
  22
  23 #ifdef HAVE_CONFIG_H
  24 # include "config.h"
  25 #endif
  26
  27 /* This is required to get the standard <inttypes.h> macros when compiling
  28    with a C++ compiler.  This must be defined *before* <inttypes.h> is
  29    included, directly or indirectly. */
  30 #define __STDC_CONSTANT_MACROS  1
  31 #define __STDC_LIMIT_MACROS     1
  32 #define __STDC_FORMAT_MACROS    1
  33
  34 #ifdef __GNUC__
  35 # if __GNUC__ >= 4
  36 #  define HAVE_GNUC_4
  37 # endif
  38 # if __GNUC__ >= 3
  39 #  define HAVE_GNUC_3
  40 # endif
  41 #endif
  42
  43 #ifdef __GNUC__
  44 # define _unused        __attribute__((unused))
  45 #else
  46 # define _unused
  47 #endif
  48
  49 /* Some versions of MSVC have these only with underscores in front */
  50 #include <stddef.h>
  51 #include <stdarg.h>
  52 #include <stdio.h>
  53
  54 #ifndef HAVE_SNPRINTF
  55 # ifdef HAVE__SNPRINTF
  56 #  define snprintf _snprintf
  57 # else
  58 int snprintf(char *, size_t, const char *, ...);
  59 # endif
  60 #endif
  61
  62 #ifndef HAVE_VSNPRINTF
  63 # ifdef HAVE__VSNPRINT
  64 #  define vsnprintf _vsnprintf
  65 # else
  66 int vsnprintf(char *, size_t, const char *, va_list);
  67 # endif
  68 #endif
  69
  70 #ifndef __cplusplus             /* C++ has false, true, bool as keywords */
  71 # ifdef HAVE_STDBOOL_H
  72 #  include <stdbool.h>
  73 # else
  74 typedef enum { false, true } bool;
  75 # endif
  76 #endif
  77
  78 /* Some misguided platforms hide the defs for these */
  79 #if defined(HAVE_STRCASECMP) && !HAVE_DECL_STRCASECMP
  80 int strcasecmp(const char *, const char *);
  81 #endif
  82
  83 #if defined(HAVE_STRICMP) && !HAVE_DECL_STRICMP
  84 int stricmp(const char *, const char *);
  85 #endif
  86
  87 #if defined(HAVE_STRNCASECMP) && !HAVE_DECL_STRNCASECMP
  88 int strncasecmp(const char *, const char *, size_t);
  89 #endif
  90
  91 #if defined(HAVE_STRNICMP) && !HAVE_DECL_STRNICMP
  92 int strnicmp(const char *, const char *, size_t);
  93 #endif
  94
  95 #if defined(HAVE_STRSEP) && !HAVE_DECL_STRSEP
  96 char *strsep(char **, const char *);
  97 #endif
  98
  99 /*
 100  * Define this to 1 for faster performance if this is a littleendian
 101  * platform which can do unaligned memory references.  It is safe
 102  * to leave it defined to 0 even if that is true.
 103  */
 104 #if defined(__386__) || defined(__i386__) || defined(__x86_64__)
 105 # define X86_MEMORY 1
 106 # ifndef WORDS_LITTLEENDIAN
 107 #  define WORDS_LITTLEENDIAN 1
 108 # endif
 109 #else
 110 # define X86_MEMORY 0
 111 #endif
 112
 113 #endif  /* NASM_COMPILER_H */