gcc/hwint.h

   1 /* HOST_WIDE_INT definitions for the GNU compiler.
   2    Copyright (C) 1998 Free Software Foundation, Inc.
   3
   4    This file is part of GNU CC.
   5
   6    Provide definitions for macros which depend on HOST_BITS_PER_INT
   7    and HOST_BITS_PER_LONG. */
   8
   9 #ifndef __HWINT_H__
  10 #define __HWINT_H__
  11
  12 /* This describes the machine the compiler is hosted on.  */
  13 #define HOST_BITS_PER_CHAR  CHAR_BIT
  14 #define HOST_BITS_PER_SHORT (CHAR_BIT * SIZEOF_SHORT)
  15 #define HOST_BITS_PER_INT   (CHAR_BIT * SIZEOF_INT)
  16 #define HOST_BITS_PER_LONG  (CHAR_BIT * SIZEOF_LONG)
  17
  18 #ifdef HAVE_LONG_LONG
  19 # define HOST_BITS_PER_LONGLONG (CHAR_BIT * SIZEOF_LONG_LONG)
  20 #else
  21 /* If we're here and we're GCC, assume this is stage 2+ of a bootstrap
  22    and 'long long' has the width of the *target*'s long long.  */
  23 # if GCC_VERSION > 3000
  24 #  define HOST_BITS_PER_LONGLONG LONG_LONG_TYPE_SIZE
  25 # endif /* gcc */
  26 #endif /* no long long */
  27
  28 /* Find the largest host integer type and set its size and type.  */
  29
  30 #ifndef HOST_BITS_PER_WIDE_INT
  31
  32 # if HOST_BITS_PER_LONG > HOST_BITS_PER_INT
  33 #  define HOST_BITS_PER_WIDE_INT HOST_BITS_PER_LONG
  34 #  define HOST_WIDE_INT long
  35 # else
  36 #  define HOST_BITS_PER_WIDE_INT HOST_BITS_PER_INT
  37 #  define HOST_WIDE_INT int
  38 # endif
  39
  40 #endif /* ! HOST_BITS_PER_WIDE_INT */
  41
  42 /* Provide defaults for the way to print a HOST_WIDE_INT
  43    in various manners.  */
  44
  45 #ifndef HOST_WIDE_INT_PRINT_DEC
  46 # if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_INT
  47 #  define HOST_WIDE_INT_PRINT_DEC "%d"
  48 # else
  49 #  if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_LONG
  50 #   define HOST_WIDE_INT_PRINT_DEC "%ld"
  51 #  else
  52 #   define HOST_WIDE_INT_PRINT_DEC "%lld"
  53 #  endif
  54 # endif
  55 #endif /* ! HOST_WIDE_INT_PRINT_DEC */
  56
  57 #ifndef HOST_WIDE_INT_PRINT_UNSIGNED
  58 # if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_INT
  59 #  define HOST_WIDE_INT_PRINT_UNSIGNED "%u"
  60 # else
  61 #  if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_LONG
  62 #   define HOST_WIDE_INT_PRINT_UNSIGNED "%lu"
  63 #  else
  64 #   define HOST_WIDE_INT_PRINT_UNSIGNED "%llu"
  65 #  endif
  66 # endif
  67 #endif /* ! HOST_WIDE_INT_PRINT_UNSIGNED */
  68
  69 #ifndef HOST_WIDE_INT_PRINT_HEX
  70 # if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_INT
  71 #  define HOST_WIDE_INT_PRINT_HEX "0x%x"
  72 # else
  73 #  if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_LONG
  74 #   define HOST_WIDE_INT_PRINT_HEX "0x%lx"
  75 #  else
  76 #   define HOST_WIDE_INT_PRINT_HEX "0x%llx"
  77 #  endif
  78 # endif
  79 #endif /* ! HOST_WIDE_INT_PRINT_HEX */
  80
  81 #ifndef HOST_WIDE_INT_PRINT_DOUBLE_HEX
  82 # if HOST_BITS_PER_WIDE_INT == 64
  83 #  if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_INT
  84 #   define HOST_WIDE_INT_PRINT_DOUBLE_HEX "0x%x%016x"
  85 #  else
  86 #   if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_LONG
  87 #    define HOST_WIDE_INT_PRINT_DOUBLE_HEX "0x%lx%016lx"
  88 #   else
  89 #    define HOST_WIDE_INT_PRINT_DOUBLE_HEX "0x%llx%016llx"
  90 #   endif
  91 #  endif
  92 # else
  93 #  if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_INT
  94 #   define HOST_WIDE_INT_PRINT_DOUBLE_HEX "0x%x%08x"
  95 #  else
  96 #   if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_LONG
  97 #    define HOST_WIDE_INT_PRINT_DOUBLE_HEX "0x%lx%08lx"
  98 #   else
  99 #    define HOST_WIDE_INT_PRINT_DOUBLE_HEX "0x%llx%08llx"
 100 #   endif
 101 #  endif
 102 # endif
 103 #endif /* ! HOST_WIDE_INT_PRINT_DOUBLE_HEX */
 104
 105 /* Find HOST_WIDEST_INT and set its bit size, type and print macros.
 106    It will be the largest integer mode supported by the host which may
 107    (or may not) be larger than HOST_WIDE_INT.  */
 108
 109 #ifndef HOST_WIDEST_INT
 110 #if defined HOST_BITS_PER_LONGLONG \
 111     && HOST_BITS_PER_LONGLONG > HOST_BITS_PER_LONG
 112 #   define HOST_BITS_PER_WIDEST_INT HOST_BITS_PER_LONGLONG
 113 #   define HOST_WIDEST_INT long long
 114 #   define HOST_WIDEST_INT_PRINT_DEC "%lld"
 115 #   define HOST_WIDEST_INT_PRINT_UNSIGNED "%llu"
 116 #   define HOST_WIDEST_INT_PRINT_HEX "0x%llx"
 117 #  else
 118 #   define HOST_BITS_PER_WIDEST_INT HOST_BITS_PER_LONG
 119 #   define HOST_WIDEST_INT long
 120 #   define HOST_WIDEST_INT_PRINT_DEC "%ld"
 121 #   define HOST_WIDEST_INT_PRINT_UNSIGNED "%lu"
 122 #   define HOST_WIDEST_INT_PRINT_HEX "0x%lx"
 123 # endif /* long long wider than long */
 124 #endif /* ! HOST_WIDEST_INT */
 125
 126 #endif /* __HWINT_H__ */