2011-09-15 23:01:56 -04:00
|
|
|
/*
|
|
|
|
|
* ====================================================
|
|
|
|
|
* 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.
|
|
|
|
|
* ====================================================
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* finite(x) returns 1 is x is finite, else 0;
|
|
|
|
|
* no branching!
|
|
|
|
|
*/
|
|
|
|
|
|
2012-03-09 11:29:16 -08:00
|
|
|
#include <math.h>
|
|
|
|
|
#include <math_private.h>
|
2011-09-15 23:01:56 -04:00
|
|
|
|
2011-10-08 10:18:26 -04:00
|
|
|
#undef __finite
|
2011-09-15 23:01:56 -04:00
|
|
|
int
|
|
|
|
|
__finite(double x)
|
|
|
|
|
{
|
|
|
|
|
int64_t lx;
|
|
|
|
|
EXTRACT_WORDS64(lx,x);
|
|
|
|
|
return (int)((uint64_t)((lx&INT64_C(0x7fffffffffffffff))-INT64_C(0x7ff0000000000000))>>63);
|
|
|
|
|
}
|
|
|
|
|
hidden_def (__finite)
|
|
|
|
|
weak_alias (__finite, finite)
|
|
|
|
|
#ifdef NO_LONG_DOUBLE
|
|
|
|
|
strong_alias (__finite, __finitel)
|
|
|
|
|
weak_alias (__finite, finitel)
|
|
|
|
|
#endif
|
