b776bfaa53
There was a duplicate definition of LDBL_MAX_EXP, which this commit removes. There was a missing definition for LDBL_MAX_10_EXP, which this commit adds. I've confirmed the value of LDBL_MAX_10_EXP using gcc on an AARM64 Debian system (gcc 8.3.0). I've only indirectly confirmed the value on RISCV (using "#if ... #error" on godbolt.org). I'm reasonably sure this update is correct, but someone should confirm it before merging to "mob".
75 lines
1.9 KiB
C
75 lines
1.9 KiB
C
#ifndef _FLOAT_H_
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#define _FLOAT_H_
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#define FLT_RADIX 2
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/* IEEE float */
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#define FLT_MANT_DIG 24
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#define FLT_DIG 6
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#define FLT_ROUNDS 1
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#define FLT_EPSILON 1.19209290e-07F
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#define FLT_MIN_EXP (-125)
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#define FLT_MIN 1.17549435e-38F
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#define FLT_MIN_10_EXP (-37)
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#define FLT_MAX_EXP 128
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#define FLT_MAX 3.40282347e+38F
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#define FLT_MAX_10_EXP 38
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/* IEEE double */
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#define DBL_MANT_DIG 53
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#define DBL_DIG 15
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#define DBL_EPSILON 2.2204460492503131e-16
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#define DBL_MIN_EXP (-1021)
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#define DBL_MIN 2.2250738585072014e-308
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#define DBL_MIN_10_EXP (-307)
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#define DBL_MAX_EXP 1024
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#define DBL_MAX 1.7976931348623157e+308
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#define DBL_MAX_10_EXP 308
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/* horrible intel long double */
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#if defined __i386__ || defined __x86_64__
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#define LDBL_MANT_DIG 64
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#define LDBL_DIG 18
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#define LDBL_EPSILON 1.08420217248550443401e-19L
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#define LDBL_MIN_EXP (-16381)
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#define LDBL_MIN 3.36210314311209350626e-4932L
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#define LDBL_MIN_10_EXP (-4931)
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#define LDBL_MAX_EXP 16384
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#define LDBL_MAX 1.18973149535723176502e+4932L
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#define LDBL_MAX_10_EXP 4932
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#define DECIMAL_DIG 21
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#elif defined __aarch64__ || defined __riscv
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/*
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* Use values from:
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* gcc -dM -E -xc /dev/null | grep LDBL | sed -e "s/__//g"
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*/
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#define LDBL_MANT_DIG 113
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#define LDBL_DIG 33
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#define LDBL_EPSILON 1.92592994438723585305597794258492732e-34L
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#define LDBL_MIN_EXP (-16381)
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#define LDBL_MIN 3.36210314311209350626267781732175260e-4932L
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#define LDBL_MIN_10_EXP (-4931)
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#define LDBL_MAX_EXP 16384
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#define LDBL_MAX 1.18973149535723176508575932662800702e+4932L
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#define LDBL_MAX_10_EXP 4932
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#define DECIMAL_DIG 36
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#else
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/* same as IEEE double */
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#define LDBL_MANT_DIG 53
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#define LDBL_DIG 15
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#define LDBL_EPSILON 2.2204460492503131e-16L
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#define LDBL_MIN_EXP (-1021)
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#define LDBL_MIN 2.2250738585072014e-308L
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#define LDBL_MIN_10_EXP (-307)
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#define LDBL_MAX_EXP 1024
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#define LDBL_MAX 1.7976931348623157e+308L
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#define LDBL_MAX_10_EXP 308
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#define DECIMAL_DIG 17
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#endif
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#endif /* _FLOAT_H_ */
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