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- Added NAN, INFINITY, FLT_EVAL_METHOD, float_t and double_t to

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<math.h>.


git-svn-id: file:///Users/olsen/Code/migration-svn-zu-git/logical-line-staging/clib2/trunk@14959 87f5fb63-7c3d-0410-a384-fd976d0f7a62
This commit is contained in:
Olaf Barthel
2005-05-29 10:09:55 +00:00
parent 2ced1d3293
commit c3a10b88b5
3 changed files with 36 additions and 2 deletions
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3
library/changes
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@ -45,6 +45,9 @@
negative and not EOF, the result was identical to the input, which
could have had negative side-effects.
-<2D>Added NAN, INFINITY, FLT_EVAL_METHOD, float_t and double_t to
<math.h>.
c.lib 1.192 (12.5.2005)

21
library/include/math.h
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@ -1,5 +1,5 @@
/*
* $Id: math.h,v 1.10 2005-05-19 13:57:53 obarthel Exp $
* $Id: math.h,v 1.11 2005-05-29 10:09:55 obarthel Exp $
*
* :ts=4
*
@ -129,6 +129,16 @@ extern float __huge_val_float;
/****************************************************************************/
extern float __infinity;
extern float __nan;
/****************************************************************************/
#define INFINITY ((const float)__infinity)
#define NAN ((const float)__nan)
/****************************************************************************/
#define FP_INFINITE 0 /* -/+ infinity */
#define FP_NAN 1 /* not a number */
#define FP_NORMAL 2 /* normalized floating point number */
@ -233,6 +243,15 @@ extern float copysignf(float x, float y);
/****************************************************************************/
#define FLT_EVAL_METHOD 0
/****************************************************************************/
typedef float float_t;
typedef double double_t;
/****************************************************************************/
#ifdef __cplusplus
}
#endif /* __cplusplus */

14
library/math_init_exit.c
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@ -1,5 +1,5 @@
/*
* $Id: math_init_exit.c,v 1.16 2005-05-07 17:03:55 obarthel Exp $
* $Id: math_init_exit.c,v 1.17 2005-05-29 10:09:54 obarthel Exp $
*
* :ts=4
*
@ -73,6 +73,11 @@ struct Library * MathIeeeDoubTransBase;
/****************************************************************************/
float __infinity;
float __nan;
/****************************************************************************/
float __huge_val_float;
double __huge_val;
@ -189,6 +194,13 @@ MATH_CONSTRUCTOR(math_init)
}
#endif /* USE_LONG_DOUBLE */
/* Finally, fill in the constants behind INFINITY and NAN. */
single_x = (union ieee_single *)&__infinity;
single_x->raw[0] = 0x7f800000;
single_x = (union ieee_single *)&__nan;
single_x->raw[0] = 0x7fc00001;
success = TRUE;
out: