gcc/config/float-sh.h

   1 /* float.h for target sh3e with optional IEEE 32 bit double format */
   2 #ifndef _FLOAT_H_
   3 #define _FLOAT_H_
   4 /* Produced by enquire version 4.3, CWI, Amsterdam */
   5
   6    /* Radix of exponent representation */
   7 #undef FLT_RADIX
   8 #define FLT_RADIX 2
   9    /* Number of base-FLT_RADIX digits in the significand of a float */
  10 #undef FLT_MANT_DIG
  11 #define FLT_MANT_DIG 24
  12    /* Number of decimal digits of precision in a float */
  13 #undef FLT_DIG
  14 #define FLT_DIG 6
  15    /* Addition rounds to 0: zero, 1: nearest, 2: +inf, 3: -inf, -1: unknown */
  16 #undef FLT_ROUNDS
  17 #define FLT_ROUNDS 1
  18    /* Difference between 1.0 and the minimum float greater than 1.0 */
  19 #undef FLT_EPSILON
  20 #define FLT_EPSILON 1.19209290e-07F
  21    /* Minimum int x such that FLT_RADIX**(x-1) is a normalised float */
  22 #undef FLT_MIN_EXP
  23 #define FLT_MIN_EXP (-125)
  24    /* Minimum normalised float */
  25 #undef FLT_MIN
  26 #define FLT_MIN 1.17549435e-38F
  27    /* Minimum int x such that 10**x is a normalised float */
  28 #undef FLT_MIN_10_EXP
  29 #define FLT_MIN_10_EXP (-37)
  30    /* Maximum int x such that FLT_RADIX**(x-1) is a representable float */
  31 #undef FLT_MAX_EXP
  32 #define FLT_MAX_EXP 128
  33    /* Maximum float */
  34 #undef FLT_MAX
  35 #define FLT_MAX 3.40282347e+38F
  36    /* Maximum int x such that 10**x is a representable float */
  37 #undef FLT_MAX_10_EXP
  38 #define FLT_MAX_10_EXP 38
  39
  40 #if defined (__SH3E__) || defined (__SH4_SINGLE_ONLY__)
  41
  42    /* Number of base-FLT_RADIX digits in the significand of a double */
  43 #undef DBL_MANT_DIG
  44 #define DBL_MANT_DIG 24
  45    /* Number of decimal digits of precision in a double */
  46 #undef DBL_DIG
  47 #define DBL_DIG 6
  48    /* Difference between 1.0 and the minimum double greater than 1.0 */
  49 #undef DBL_EPSILON
  50 #define DBL_EPSILON 1.19209290e-07F
  51    /* Minimum int x such that FLT_RADIX**(x-1) is a normalised double */
  52 #undef DBL_MIN_EXP
  53 #define DBL_MIN_EXP (-125)
  54    /* Minimum normalised double */
  55 #undef DBL_MIN
  56 #define DBL_MIN 1.17549435e-38F
  57    /* Minimum int x such that 10**x is a normalised double */
  58 #undef DBL_MIN_10_EXP
  59 #define DBL_MIN_10_EXP (-37)
  60    /* Maximum int x such that FLT_RADIX**(x-1) is a representable double */
  61 #undef DBL_MAX_EXP
  62 #define DBL_MAX_EXP 128
  63    /* Maximum double */
  64 #undef DBL_MAX
  65 #define DBL_MAX 3.40282347e+38F
  66    /* Maximum int x such that 10**x is a representable double */
  67 #undef DBL_MAX_10_EXP
  68 #define DBL_MAX_10_EXP 38
  69
  70 #else
  71
  72    /* Number of base-FLT_RADIX digits in the significand of a double */
  73 #undef DBL_MANT_DIG
  74 #define DBL_MANT_DIG 53
  75    /* Number of decimal digits of precision in a double */
  76 #undef DBL_DIG
  77 #define DBL_DIG 15
  78    /* Difference between 1.0 and the minimum double greater than 1.0 */
  79 #undef DBL_EPSILON
  80 #define DBL_EPSILON 2.2204460492503131e-16
  81    /* Minimum int x such that FLT_RADIX**(x-1) is a normalised double */
  82 #undef DBL_MIN_EXP
  83 #define DBL_MIN_EXP (-1021)
  84    /* Minimum normalised double */
  85 #undef DBL_MIN
  86 #define DBL_MIN 2.2250738585072014e-308
  87    /* Minimum int x such that 10**x is a normalised double */
  88 #undef DBL_MIN_10_EXP
  89 #define DBL_MIN_10_EXP (-307)
  90    /* Maximum int x such that FLT_RADIX**(x-1) is a representable double */
  91 #undef DBL_MAX_EXP
  92 #define DBL_MAX_EXP 1024
  93    /* Maximum double */
  94 #undef DBL_MAX
  95 #define DBL_MAX 1.7976931348623157e+308
  96    /* Maximum int x such that 10**x is a representable double */
  97 #undef DBL_MAX_10_EXP
  98 #define DBL_MAX_10_EXP 308
  99
 100 #endif
 101
 102 /* Because -m3e and -m4-single-only have 32-bit doubles, we append L
 103    to the doubles below, so that they're not truncated.  */
 104
 105    /* Number of base-FLT_RADIX digits in the significand of a long double */
 106 #undef LDBL_MANT_DIG
 107 #define LDBL_MANT_DIG 53
 108    /* Number of decimal digits of precision in a long double */
 109 #undef LDBL_DIG
 110 #define LDBL_DIG 15
 111    /* Difference between 1.0 and the minimum long double greater than 1.0 */
 112 #undef LDBL_EPSILON
 113 #define LDBL_EPSILON 2.2204460492503131e-16L
 114    /* Minimum int x such that FLT_RADIX**(x-1) is a normalised long double */
 115 #undef LDBL_MIN_EXP
 116 #define LDBL_MIN_EXP (-1021)
 117    /* Minimum normalised long double */
 118 #undef LDBL_MIN
 119 #define LDBL_MIN 2.2250738585072014e-308L
 120    /* Minimum int x such that 10**x is a normalised long double */
 121 #undef LDBL_MIN_10_EXP
 122 #define LDBL_MIN_10_EXP (-307)
 123    /* Maximum int x such that FLT_RADIX**(x-1) is a representable long double */
 124 #undef LDBL_MAX_EXP
 125 #define LDBL_MAX_EXP 1024
 126    /* Maximum long double */
 127 #undef LDBL_MAX
 128 #define LDBL_MAX 1.7976931348623157e+308L
 129    /* Maximum int x such that 10**x is a representable long double */
 130 #undef LDBL_MAX_10_EXP
 131 #define LDBL_MAX_10_EXP 308
 132
 133 #if __STDC_VERSION__ >= 199901L
 134    /* The floating-point expression evaluation method.
 135         -1  indeterminate
 136          0  evaluate all operations and constants just to the range and
 137             precision of the type
 138          1  evaluate operations and constants of type float and double
 139             to the range and precision of the double type, evaluate
 140             long double operations and constants to the range and
 141             precision of the long double type
 142          2  evaluate all operations and constants to the range and
 143             precision of the long double type
 144    */
 145 # undef FLT_EVAL_METHOD
 146 # define FLT_EVAL_METHOD        0
 147
 148    /* Number of decimal digits to enable rounding to the given number of
 149       decimal digits without loss of precision.
 150          if FLT_RADIX == 10^n:  #mantissa * log10 (FLT_RADIX)
 151          else                :  ceil (1 + #mantissa * log10 (FLT_RADIX))
 152       where #mantissa is the number of bits in the mantissa of the widest
 153       supported floating-point type.
 154    */
 155 # undef DECIMAL_DIG
 156 # define DECIMAL_DIG    17
 157
 158 #endif  /* C99 */
 159
 160 #endif /*  _FLOAT_H_ */