/* float.h */ #ifndef _FLOAT_H___ #define _FLOAT_H___ /* Produced by enquire version 4.3, CWI, Amsterdam */ /* Radix of exponent representation */ #define FLT_RADIX 2 /* Number of base-FLT_RADIX digits in the significand of a float */ #define FLT_MANT_DIG 24 /* Number of decimal digits of precision in a float */ #define FLT_DIG 6 /* Addition rounds to 0: zero, 1: nearest, 2: +inf, 3: -inf, -1: unknown */ #define FLT_ROUNDS 1 /* Difference between 1.0 and the minimum float greater than 1.0 */ #define FLT_EPSILON 1.1920929e-07F /* Minimum int x such that FLT_RADIX**(x-1) is a normalised float */ #define FLT_MIN_EXP (-125) /* Minimum normalised float */ #define FLT_MIN 1.17549435e-38F /* Minimum int x such that 10**x is a normalised float */ #define FLT_MIN_10_EXP (-37) /* Maximum int x such that FLT_RADIX**(x-1) is a representable float */ #define FLT_MAX_EXP 128 /* Maximum float */ #define FLT_MAX 3.40282347e+38F /* Maximum int x such that 10**x is a representable float */ #define FLT_MAX_10_EXP 38 /* Number of base-FLT_RADIX digits in the significand of a double */ #define DBL_MANT_DIG 53 /* Number of decimal digits of precision in a double */ #define DBL_DIG 15 /* Difference between 1.0 and the minimum double greater than 1.0 */ #define DBL_EPSILON 2.2204460492503131e-16 /* Minimum int x such that FLT_RADIX**(x-1) is a normalised double */ #define DBL_MIN_EXP (-1021) /* Minimum normalised double */ #define DBL_MIN 2.2250738585072014e-308 /* Minimum int x such that 10**x is a normalised double */ #define DBL_MIN_10_EXP (-307) /* Maximum int x such that FLT_RADIX**(x-1) is a representable double */ #define DBL_MAX_EXP 1024 /* Maximum double */ #define DBL_MAX 1.7976931348623157e+308 /* Maximum int x such that 10**x is a representable double */ #define DBL_MAX_10_EXP 308 /* Number of base-FLT_RADIX digits in the significand of a long double */ /* By default, we set the precision mode on x86 processors to double */ #define LDBL_MANT_DIG DBL_MANT_DIG /* Number of decimal digits of precision in a long double */ /* By default, we set the precision mode on x86 processors to double */ #define LDBL_DIG DBL_DIG #ifdef __i386__ /* Difference between 1.0 and the minimum long double greater than 1.0 */ #ifndef __LDBL_UNION__ #define __LDBL_UNION__ union __convert_long_double { unsigned __convert_long_double_i[4]; long double __convert_long_double_d; }; #endif #define LDBL_EPSILON (__extension__ ((union __convert_long_double) {0x0, 0x80000000, 0x3fcb, 0x0}).__convert_long_double_d) /* Minimum int x such that FLT_RADIX**(x-1) is a normalised long double */ #define LDBL_MIN_EXP (-16381) /* Minimum normalised long double */ #define LDBL_MIN (__extension__ ((union __convert_long_double) {0x0, 0x80000000, 0x1, 0x0}).__convert_long_double_d) /* Minimum int x such that 10**x is a normalised long double */ #define LDBL_MIN_10_EXP (-4931) /* Maximum int x such that FLT_RADIX**(x-1) is a representable long double */ #define LDBL_MAX_EXP 16384 /* Maximum long double */ #define LDBL_MAX (__extension__ ((union __convert_long_double) {0xfffff800, 0xffffffff, 0x7ffe, 0x0}).__convert_long_double_d) /* Maximum int x such that 10**x is a representable long double */ #define LDBL_MAX_10_EXP 4932 #else /* not __i386__ */ /* Difference between 1.0 and the minimum long double greater than 1.0 */ #define LDBL_EPSILON DBL_EPSILON /* Minimum int x such that FLT_RADIX**(x-1) is a normalised long double */ #define LDBL_MIN_EXP DBL_MIN_EXP /* Minimum normalised long double */ #define LDBL_MIN DBL_MIN /* Minimum int x such that 10**x is a normalised long double */ #define LDBL_MIN_10_EXP DBL_MIN_10_EXP /* Maximum int x such that FLT_RADIX**(x-1) is a representable long double */ #define LDBL_MAX_EXP DBL_MAX_EXP /* Maximum long double */ #define LDBL_MAX DBL_MAX /* Maximum int x such that 10**x is a representable long double */ #define LDBL_MAX_10_EXP DBL_MAX_10_EXP #endif /* __i386__ */ #endif /* _FLOAT_H___ */