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46db37289f
this is enough to produce the correct value even if the constant is interpreted as 80-bit extended precision, which matters on archs with excess precision (FLT_EVAL_METHOD==2) under at least some interpretations of the C standard. the shorter representations, while correct if converted to the nominal precision at translation time, could produce an incorrect value at extended precision, yielding results such as (double)DBL_MAX != DBL_MAX.
35 lines
760 B
C
35 lines
760 B
C
#ifndef _FLOAT_H
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#define _FLOAT_H
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#define FLT_RADIX 2
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#define FLT_TRUE_MIN 1.40129846432481707092e-45F
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#define FLT_MIN 1.17549435082228750797e-38F
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#define FLT_MAX 3.40282346638528859812e+38F
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#define FLT_EPSILON 1.1920928955078125e-07F
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#define FLT_MANT_DIG 24
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#define FLT_MIN_EXP (-125)
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#define FLT_MAX_EXP 128
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#define FLT_DIG 6
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#define FLT_MIN_10_EXP (-37)
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#define FLT_MAX_10_EXP 38
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#define DBL_TRUE_MIN 4.94065645841246544177e-324
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#define DBL_MIN 2.22507385850720138309e-308
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#define DBL_MAX 1.79769313486231570815e+308
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#define DBL_EPSILON 2.22044604925031308085e-16
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#define DBL_MANT_DIG 53
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#define DBL_MIN_EXP (-1021)
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#define DBL_MAX_EXP 1024
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#define DBL_DIG 15
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#define DBL_MIN_10_EXP (-307)
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#define DBL_MAX_10_EXP 308
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#include <bits/float.h>
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#endif
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