61 lines
2.0 KiB
C
61 lines
2.0 KiB
C
#ifndef _MACHINE_FLOAT_H_
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#define _MACHINE_FLOAT_H_
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/* Characteristics of IEEE floating types */
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#define FLT_RADIX 2
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#define FLT_ROUNDS 1
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/*
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* These values provide information pertaining to the float type.
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*/
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#define FLT_EPSILON 1.19209290E-07F /* b**(1-p) */
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#define FLT_MAX 3.40282347E+38F /* (1-b**(-p))*b**emax */
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#define FLT_MIN 1.17549435E-38F /* b**(emin-1) */
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#define FLT_DIG 6 /* floor((p-1)*log10(b))+(b == 10) */
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#define FLT_MANT_DIG 24 /* p */
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#define FLT_MAX_10_EXP 38 /* floor(log10((1-b**(-p))*b**emax)) */
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#define FLT_MAX_EXP 128 /* emax */
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#define FLT_MIN_10_EXP (-37) /* ceil(log10(b**(emin-1))) */
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#define FLT_MIN_EXP (-125) /* emin */
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/*
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* These values provide information pertaining to the double type
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* The values are dependant upon the presence of the -fno-short-double
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* compiler option.
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*/
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//#define DBL_EPSILON FLT_EPSILON
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//#define DBL_MAX FLT_MAX
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//#define DBL_MIN FLT_MIN
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//#define DBL_DIG FLT_DIG
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//#define DBL_MANT_DIG FLT_MANT_DIG
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//#define DBL_MAX_10_EXP FLT_MAX_10_EXP
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//#define DBL_MAX_EXP FLT_MAX_EXP
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//#define DBL_MIN_10_EXP FLT_MIN_10_EXP
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//#define DBL_MIN_EXP FLT_MIN_EXP
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/*
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* These values provide information pertaining to the long double type.
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*/
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#define DBL_EPSILON 2.2204460492503131E-16
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#define DBL_MAX 1.7976931348623157E+308
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#define DBL_MIN 2.2250738585072014E-308
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#define DBL_DIG 15
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#define DBL_MANT_DIG 53
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#define DBL_MAX_10_EXP 308
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#define DBL_MAX_EXP 1024
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#define DBL_MIN_10_EXP (-307)
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#define DBL_MIN_EXP (-1021)
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#define LDBL_EPSILON 2.2204460492503131E-16
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#define LDBL_MAX 1.7976931348623157E+308
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#define LDBL_MIN 2.2250738585072014E-308
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#define LDBL_DIG 15
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#define LDBL_MANT_DIG 53
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#define LDBL_MAX_10_EXP 308
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#define LDBL_MAX_EXP 1024
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#define LDBL_MIN_10_EXP (-307)
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#define LDBL_MIN_EXP (-1021)
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#endif /* _MACHINE_FLOAT_H_ */
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