newlib-cygwin/newlib/libm/mathfp/sf_ispos.c

41 lines
739 B
C
Raw Normal View History

2000-02-18 03:39:52 +08:00
/* @(#)z_isposf.c 1.0 98/08/13 */
/******************************************************************
* Positive value test
*
* Input:
* x - floating point value
*
* Output:
* An integer that indicates if the number is positive.
*
* Description:
* This routine returns an integer that indicates if the number
* passed in is positive (1) or negative (0).
*
*****************************************************************/
#include "fdlibm.h"
#include "zmath.h"
int isposf (float x)
{
__int32_t wx;
GET_FLOAT_WORD (wx, x);
if (wx & 0x80000000)
return (0);
else
return (1);
}
#ifdef _DOUBLE_IS_32BITS
int ispos (double x)
{
return isposf ((float) x);
}
#endif /* defined(_DOUBLE_IS_32BITS) */