mirror of
https://github.com/autc04/Retro68.git
synced 2024-11-20 10:42:21 +00:00
41 lines
739 B
C
41 lines
739 B
C
|
|
/* @(#)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) */
|