Retro68/gcc/libquadmath/math/ldexpq.c
Wolfgang Thaller 6fbf4226da gcc-9.1
2019-06-20 20:10:10 +02:00

33 lines
837 B
C

/* @(#)s_ldexp.c 5.1 93/09/24 */
/*
* ====================================================
* 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_ldexp.c,v 1.6 1995/05/10 20:47:40 jtc Exp $";
#endif
#include "quadmath-imp.h"
__float128
ldexpq (__float128 value, int exp)
{
if(!finiteq(value)||value==0) return value + value;
value = scalbnq(value,exp);
if(!finiteq(value)||value==0) errno = ERANGE;
return value;
}
/* Note, versioning issues are punted to ldbl-opt in this case. */