Aren/haiku
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Add missing definitions to math.h

Browse Source 
Signed-off-by: Jérôme Duval <jerome.duval@gmail.com>
This commit is contained in:
Sam Toyer 2012-12-01 19:18:57 +10:00 committed by Jérôme Duval
parent 4f2c820dda
commit b236c48e09
1 changed files with 71 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

71
headers/posix/math.h
View File

@ -5,6 +5,24 @@
#ifndef _MATH_H_
#define _MATH_H_
/* (float|double)_t typedefs */
#ifdef __FLT_EVAL_METHOD__
#define FLT_EVAL_METHOD __FLT_EVAL_METHOD__
#else
#define FLT_EVAL_METHOD 0
#endif
#if FLT_EVAL_METHOD == 1
typedef double float_t;
typedef double double_t;
#elif FLT_EVAL_METHOD == 2
typedef long double float_t;
typedef long double double_t;
#else
typedef float float_t;
typedef double double_t;
#endif
#define M_E 2.7182818284590452354 /* e */
#define M_LOG2E 1.4426950408889634074 /* log 2e */
@ -50,6 +68,9 @@
# define INFINITY HUGE_VALF
#endif
#include <limits.h>
#define MAXFLOAT FLT_MAX
/* floating-point categories */
#define FP_NAN 0
#define FP_INFINITE 1
@ -57,6 +78,25 @@
#define FP_SUBNORMAL 3
#define FP_NORMAL 4
#ifdef __FP_FAST_FMA
#define FP_FAST_FMA __FP_FAST_FMA
#else
#define FP_FAST_FMA 0
#endif
#ifdef __FP_FAST_FMAF
#define FP_FAST_FMAF __FP_FAST_FMAF
#else
#define FP_FAST_FMAF 0
#endif
#ifdef __FP_FAST_FMAL
#define FP_FAST_FMAL __FP_FAST_FMAL
#else
#define FP_FAST_FMAL 0
#endif
#define FP_ILOGB0 INT_MAX
#define FP_ILOGBNAN INT_MAX
#ifdef __cplusplus
struct __exception;
extern "C" int matherr(struct __exception *);
@ -73,6 +113,10 @@ struct exception {
double retval;
};
#define MATH_ERRNO 1
#define MATH_ERREXCEPT 2
#define math_errhandling 0
#define DOMAIN 1
#define SING 2
#define OVERFLOW 3
@ -348,6 +392,33 @@ extern int __isinf(double value);
: sizeof(value) == sizeof(double) ? __isinf(value) \
: __isinfl(value))
#if __GNUC__ >= 4
#define isgreater(x, y) __builtin_isgreater((x), (y))
#define isgreaterequal(x, y) __builtin_isgreaterequal((x), (y))
#define isless(x, y) __builtin_isless((x), (y))
#define islessequal(x, y) __builtin_islessequal((x), (y))
#define islessgreater(x, y) __builtin_islessgreater((x), (y))
#define isunordered(x, y) __builtin_isunordered((x), (y))
#else
/* these are only for GCC2, and require GNUC statement expressions */
#define _wrap_expr_typeof(x, y, body) ({ \
__typeof(x) X = (x); \
__typeof(y) Y = (y); \
body;})
#define isgreater(x, y) \
_wrap_expr_typeof(x, y, !isnan(X) && !isnan(Y) && X > Y)
#define isgreaterequal(x, y) \
_wrap_expr_typeof(x, y, !isnan(X) && !isnan(Y) && X >= Y)
#define isless(x, y) \
_wrap_expr_typeof(x, y, !isnan(X) && !isnan(Y) && X < Y)
#define islessequal(x, y) \
_wrap_expr_typeof(x, y, !isnan(X) && !isnan(Y) && X <= Y)
#define islessgreater(x, y) \
_wrap_expr_typeof(x, y, X < Y || Y < X)
#define isunordered(x, y) \
_wrap_expr_typeof(x, y, isnan(X) || isnan(Y))
#endif
#ifdef __cplusplus
}
#endif