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Add fpclassify() macro and some other stuff from C99 to <math.h>.

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fpclassify() is a type-generic macro that is implemented via new internal library routines.
This commit is contained in:
Stephen Heumann 2021-03-08 23:42:44 -06:00
parent cad042b95b
commit 17a7fc5487
1 changed files with 24 additions and 0 deletions
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24
ORCACDefs/math.h
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@ -13,7 +13,31 @@
#ifndef __math__
#define __math__
typedef long double float_t;
typedef long double double_t;
#define HUGE_VAL 1e5000
#define HUGE_VALF 1e5000F
#define HUGE_VALL 1e5000L
#define INFINITY 1e5000F
#define NAN (0.0F/0.0F)
#define FP_INFINITE 0xFE
#define FP_NAN 0xFD
#define FP_NORMAL 0x00
#define FP_SUBNORMAL 0x01
#define FP_ZERO 0xFF
int __fpclassifyf(float);
int __fpclassifyd(double);
int __fpclassifyl(long double);
#define fpclassify(x) _Generic((x), \
float: __fpclassifyf, \
double: __fpclassifyd, \
long double: __fpclassifyl)(x)
#ifndef __KeepNamespacePure__
#define arctan(x) atan(x)