Retro68/gcc/libquadmath/math/ldexpq.c
2014-09-21 19:33:12 +02:00

28 lines
763 B
C

/* ldexpq.c -- __float128 version of s_ldexp.c.
* Conversion to long double by Ulrich Drepper,
* Cygnus Support, drepper@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.
* ====================================================
*/
#include <errno.h>
#include "quadmath-imp.h"
__float128
ldexpq (__float128 value, int exp)
{
if(!finiteq(value)||value==0.0Q) return value;
value = scalbnq(value,exp);
if(!finiteq(value)||value==0.0Q) errno = ERANGE;
return value;
}