Source to include/float.h
0001 /*
0002 * float.h
0003 */
0004 #ifndef _FLOAT_H___
0005 #define _FLOAT_H___
0006 /* Produced by enquire version 4.3, CWI, Amsterdam */
0007
0008 /* Radix of exponent representation */
0009 #undef FLT_RADIX
0010 #define FLT_RADIX 2
0011 /* Number of base-FLT_RADIX digits in the significand of a float */
0012 #undef FLT_MANT_DIG
0013 #define FLT_MANT_DIG 24
0014 /* Number of decimal digits of precision in a float */
0015 #undef FLT_DIG
0016 #define FLT_DIG 6
0017 /* Addition rounds to 0: zero, 1: nearest, 2: +inf, 3: -inf, -1: unknown */
0018 #undef FLT_ROUNDS
0019 #define FLT_ROUNDS 1
0020 /* Difference between 1.0 and the minimum float greater than 1.0 */
0021 #undef FLT_EPSILON
0022 #define FLT_EPSILON 1.19209290e-07F
0023 /* Minimum int x such that FLT_RADIX**(x-1) is a normalised float */
0024 #undef FLT_MIN_EXP
0025 #define FLT_MIN_EXP (-125)
0026 /* Minimum normalised float */
0027 #undef FLT_MIN
0028 #define FLT_MIN 1.17549435e-38F
0029 /* Minimum int x such that 10**x is a normalised float */
0030 #undef FLT_MIN_10_EXP
0031 #define FLT_MIN_10_EXP (-37)
0032 /* Maximum int x such that FLT_RADIX**(x-1) is a representable float */
0033 #undef FLT_MAX_EXP
0034 #define FLT_MAX_EXP 128
0035 /* Maximum float */
0036 #undef FLT_MAX
0037 #define FLT_MAX 3.40282347e+38F
0038 /* Maximum int x such that 10**x is a representable float */
0039 #undef FLT_MAX_10_EXP
0040 #define FLT_MAX_10_EXP 38
0041
0042 /* Number of base-FLT_RADIX digits in the significand of a double */
0043 #undef DBL_MANT_DIG
0044 #define DBL_MANT_DIG 53
0045 /* Number of decimal digits of precision in a double */
0046 #undef DBL_DIG
0047 #define DBL_DIG 15
0048 /* Difference between 1.0 and the minimum double greater than 1.0 */
0049 #undef DBL_EPSILON
0050 #define DBL_EPSILON 2.2204460492503131e-16
0051 /* Minimum int x such that FLT_RADIX**(x-1) is a normalised double */
0052 #undef DBL_MIN_EXP
0053 #define DBL_MIN_EXP (-1021)
0054 /* Minimum normalised double */
0055 #undef DBL_MIN
0056 #define DBL_MIN 2.2250738585072014e-308
0057 /* Minimum int x such that 10**x is a normalised double */
0058 #undef DBL_MIN_10_EXP
0059 #define DBL_MIN_10_EXP (-307)
0060 /* Maximum int x such that FLT_RADIX**(x-1) is a representable double */
0061 #undef DBL_MAX_EXP
0062 #define DBL_MAX_EXP 1024
0063 /* Maximum double */
0064 #undef DBL_MAX
0065 #define DBL_MAX 1.7976931348623157e+308
0066 /* Maximum int x such that 10**x is a representable double */
0067 #undef DBL_MAX_10_EXP
0068 #define DBL_MAX_10_EXP 308
0069
0070 /* Number of base-FLT_RADIX digits in the significand of a long double */
0071 #undef LDBL_MANT_DIG
0072 #define LDBL_MANT_DIG 64
0073 /* Number of decimal digits of precision in a long double */
0074 #undef LDBL_DIG
0075 #define LDBL_DIG 18
0076 /* Difference between 1.0 and the minimum long double greater than 1.0 */
0077 #undef LDBL_EPSILON
0078 #ifndef __LDBL_UNION__
0079 #define __LDBL_UNION__
0080 union __convert_long_double {
0081 unsigned __convert_long_double_i[4];
0082 long double __convert_long_double_d;
0083 };
0084 #endif
0085 #define LDBL_EPSILON (__extension__ ((union __convert_long_double) {0x0, 0x80000000, 0x3fc0, 0x0}).__convert_long_double_d)
0086 /* Minimum int x such that FLT_RADIX**(x-1) is a normalised long double */
0087 #undef LDBL_MIN_EXP
0088 #define LDBL_MIN_EXP (-16381)
0089 /* Minimum normalised long double */
0090 #undef LDBL_MIN
0091 #define LDBL_MIN (__extension__ ((union __convert_long_double) {0x0, 0x80000000, 0x1, 0x0}).__convert_long_double_d)
0092 /* Minimum int x such that 10**x is a normalised long double */
0093 #undef LDBL_MIN_10_EXP
0094 #define LDBL_MIN_10_EXP (-4931)
0095 /* Maximum int x such that FLT_RADIX**(x-1) is a representable long double */
0096 #undef LDBL_MAX_EXP
0097 #define LDBL_MAX_EXP 16384
0098 /* Maximum long double */
0099 #undef LDBL_MAX
0100 #define LDBL_MAX (__extension__ ((union __convert_long_double) {0xffffffff, 0xffffffff, 0x7ffe, 0x0}).__convert_long_double_d)
0101 /* Maximum int x such that 10**x is a representable long double */
0102 #undef LDBL_MAX_10_EXP
0103 #define LDBL_MAX_10_EXP 4932
0104
0105 #endif /* _FLOAT_H___ */