mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-27 15:30:07 +00:00
37 lines
953 B
C
37 lines
953 B
C
/* s_finitef.c -- float version of s_finite.c.
|
|
* Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
|
|
*/
|
|
|
|
/*
|
|
* ====================================================
|
|
* 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.
|
|
* ====================================================
|
|
*/
|
|
|
|
#if defined(LIBM_SCCS) && !defined(lint)
|
|
static char rcsid[] = "$NetBSD: s_finitef.c,v 1.4 1995/05/10 20:47:18 jtc Exp $";
|
|
#endif
|
|
|
|
/*
|
|
* finitef(x) returns 1 is x is finite, else 0;
|
|
* no branching!
|
|
*/
|
|
|
|
#include <math.h>
|
|
#include <math_private.h>
|
|
|
|
#undef __finitef
|
|
int __finitef(float x)
|
|
{
|
|
int32_t ix;
|
|
GET_FLOAT_WORD(ix,x);
|
|
return (int)((u_int32_t)((ix&0x7fffffff)-0x7f800000)>>31);
|
|
}
|
|
hidden_def (__finitef)
|
|
weak_alias (__finitef, finitef)
|