Fix a bug about the iSCSI DHCP dependency issue.

[mirror_edk2.git] / StdLib / LibC / Math / s_ldexp.c

/* @(#)s_ldexp.c 5.1 93/09/24 */\r
/*\r
 * ====================================================\r
 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.\r
 *\r
 * Developed at SunPro, a Sun Microsystems, Inc. business.\r
 * Permission to use, copy, modify, and distribute this\r
 * software is freely granted, provided that this notice\r
 * is preserved.\r
 * ====================================================\r
 */\r
#include  <LibConfig.h>\r
#include  <sys/EfiCdefs.h>\r
#if defined(LIBM_SCCS) && !defined(lint)\r
__RCSID("$NetBSD: s_ldexp.c,v 1.9 2002/05/26 22:01:56 wiz Exp $");\r
#endif\r
\r
#include <errno.h>\r
#include "math.h"\r
#include "math_private.h"\r
\r
double\r
ldexp(double value, int exp)\r
{\r
  if(!finite(value)||value==0.0) return value;\r
  value = scalbn(value,exp);\r
  if(!finite(value)||value==0.0) errno = ERANGE;\r
  return value;\r
}\r