566c3ca2de
The float.h macros got out of sync with u.h, some of them missing and some of them being incorrect. This change brings them back in line.
75 lines
1.7 KiB
C
75 lines
1.7 KiB
C
#ifndef __FLOAT
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#define __FLOAT
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/* IEEE, default rounding */
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#define FLT_ROUNDS 1
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#define FLT_RADIX 2
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#define FLT_DIG 6
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#define FLT_EPSILON 1.19209290e-07
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#define FLT_MANT_DIG 24
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#define FLT_MAX 3.40282347e+38
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#define FLT_MAX_10_EXP 38
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#define FLT_MAX_EXP 128
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#define FLT_MIN 1.17549435e-38
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#define FLT_MIN_10_EXP -37
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#define FLT_MIN_EXP -125
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#define DBL_DIG 15
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#define DBL_EPSILON 2.2204460492503131e-16
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#define DBL_MANT_DIG 53
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#define DBL_MAX 1.797693134862315708145e+308
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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 2.225073858507201383090233e-308
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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_MANT_DIG DBL_MANT_DIG
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#define LDBL_EPSILON DBL_EPSILON
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#define LDBL_DIG DBL_DIG
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#define LDBL_MIN_EXP DBL_MIN_EXP
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#define LDBL_MIN DBL_MIN
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#define LDBL_MIN_10_EXP DBL_MIN_10_EXP
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#define LDBL_MAX_EXP DBL_MAX_EXP
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#define LDBL_MAX DBL_MAX
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#define LDBL_MAX_10_EXP DBL_MAX_10_EXP
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typedef union FPdbleword FPdbleword;
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union FPdbleword
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{
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double x;
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struct { /* little endian */
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long lo;
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long hi;
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};
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};
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#ifdef _RESEARCH_SOURCE
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/* define stuff needed for floating conversion */
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#define IEEE_8087 1
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#define Sudden_Underflow 1
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#endif
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#ifdef _PLAN9_SOURCE
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/* FCR */
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#define FPINEX (1<<5)
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#define FPUNFL ((1<<4)|(1<<1))
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#define FPOVFL (1<<3)
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#define FPZDIV (1<<2)
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#define FPINVAL (1<<0)
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#define FPRNR (0<<10)
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#define FPRZ (3<<10)
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#define FPRPINF (2<<10)
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#define FPRNINF (1<<10)
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#define FPRMASK (3<<10)
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#define FPPEXT (3<<8)
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#define FPPSGL (0<<8)
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#define FPPDBL (2<<8)
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#define FPPMASK (3<<8)
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/* FSR */
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#define FPAINEX FPINEX
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#define FPAOVFL FPOVFL
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#define FPAUNFL FPUNFL
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#define FPAZDIV FPZDIV
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#define FPAINVAL FPINVAL
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#endif
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#endif /* __FLOAT */
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