mirror of
git://sourceware.org/git/glibc.git
synced 2024-12-15 04:20:28 +08:00
9f9834f582
This one is a little more tricky since it is built both for libm and libc, and exports multiple aliases. To simplify aliasing, a new macro is introduced which handles aliasing to two symbols. By default, it just applies declare_mgen_alias to both target symbols. Likewise, the makefile is tweaked a little to generate templates for shared files too, and a new rule is added to build m_*.c objects from the objpfx directory. Verified there are no symbol or code changes using a script to diff the *_ldexp* object files on s390x, aarch64, arm, x86_64, and ppc64.
33 lines
926 B
C
33 lines
926 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 <math.h>
|
|
#include <math_private.h>
|
|
#include <errno.h>
|
|
|
|
FLOAT
|
|
M_SUF (__ldexp) (FLOAT value, int exp)
|
|
{
|
|
if(!isfinite(value)||value==0) return value + value;
|
|
value = M_SCALBN(value,exp);
|
|
if(!isfinite(value)||value==0) __set_errno (ERANGE);
|
|
return value;
|
|
}
|
|
|
|
declare_mgen_alias_2 (__ldexp, ldexp, scalbn);
|
|
|
|
/* Note, versioning issues are punted to ldbl-opt in this case. */
|