mirror of
https://github.com/autc04/Retro68.git
synced 2024-11-28 21:49:33 +00:00
38 lines
724 B
C
38 lines
724 B
C
|
/*
|
||
|
|
* ====================================================
|
||
|
|
* Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
|
||
|
|
*
|
||
|
|
* Developed at SunPro, a Sun Microsystems, Inc. business.
|
||
|
|
* Permission to use, copy, modify, and distribute this
|
||
|
|
* software is freely granted, provided that this notice
|
||
|
|
* is preserved.
|
||
|
|
* ====================================================
|
||
|
|
*/
|
||
|
|
|
||
|
|
/*
|
||
|
|
* __isnanf(x) returns 1 is x is nan, else 0;
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "fdlibm.h"
|
||
|
|
|
||
|
|
int
|
||
|
|
_DEFUN (__isnanf, (x),
|
||
|
|
float x)
|
||
|
|
{
|
||
|
|
__int32_t ix;
|
||
|
|
GET_FLOAT_WORD(ix,x);
|
||
|
|
ix &= 0x7fffffff;
|
||
|
|
return FLT_UWORD_IS_NAN(ix);
|
||
|
|
}
|
||
|
|
|
||
|
|
#ifdef _DOUBLE_IS_32BITS
|
||
|
|
|
||
|
|
int
|
||
|
|
_DEFUN (__isnand, (x),
|
||
|
|
double x)
|
||
|
|
{
|
||
|
|
return __isnanf((float) x);
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif /* defined(_DOUBLE_IS_32BITS) */
|