You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
22 lines
579 B
22 lines
579 B
/* _FDtest function -- IEEE 754 version */
|
|
#include "xmath.h"
|
|
_STD_BEGIN
|
|
|
|
_CRTIMP2 short __cdecl _FDtest(float *px)
|
|
{ /* categorize *px */
|
|
unsigned short *ps = (unsigned short *)px;
|
|
|
|
if ((ps[_F0] & _FMASK) == _FMAX << _FOFF)
|
|
return ((ps[_F0] & _FFRAC) != 0 || ps[_F1] != 0
|
|
? _NANCODE : _INFCODE);
|
|
else if ((ps[_F0] & ~_FSIGN) != 0 || ps[_F1] != 0)
|
|
return (_FINITE);
|
|
else
|
|
return (0);
|
|
}
|
|
_STD_END
|
|
|
|
/*
|
|
* Copyright (c) 1992-2001 by P.J. Plauger. ALL RIGHTS RESERVED.
|
|
* Consult your license regarding permissions and restrictions.
|
|
V3.10:0009 */
|