s_ldexpf.cpp

来自「这是整套横扫千军3D版游戏的源码」· C++ 代码 · 共 41 行

/* See the import.pl script for potential modifications */
/* s_ldexpf.c -- Simple version of s_ldexp.c.
 * Conversion to Simple by Ian Lance Taylor, Cygnus Support, [e-mail].
 */

/*
 * ====================================================
 * 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_ldexpf.c,v 1.3f 1995/05/10 20:47:42 jtc Exp $";
#endif

#include "SMath.h"
#include "math_private.h"
#include "../streflop_libm_bridge.h"

namespace streflop_libm {
#ifdef __STDC__
	Simple __ldexpf(Simple value, int exp)
#else
	Simple __ldexpf(value, exp)
	Simple value; int exp;
#endif
{
	if(!__finitef(value)||value==(Simple)0.0f) return value;
	value = __scalbnf(value,exp);
	if(!__finitef(value)||value==(Simple)0.0f) __set_errno (ERANGE);
	return value;
}
INTDEF(__ldexpf)
weak_alias (__ldexpf, ldexpf)
}