diff options
Diffstat (limited to 'libc/math/w_remainder.c')
| -rw-r--r-- | libc/math/w_remainder.c | 62 |
1 files changed, 27 insertions, 35 deletions
diff --git a/libc/math/w_remainder.c b/libc/math/w_remainder.c index 9d7a7c538..524cbf582 100644 --- a/libc/math/w_remainder.c +++ b/libc/math/w_remainder.c @@ -1,44 +1,36 @@ -/* @(#)w_remainder.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. - * ==================================================== - */ +/* Copyright (C) 2011 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@gmail.com>, 2011. -#if defined(LIBM_SCCS) && !defined(lint) -static char rcsid[] = "$NetBSD: w_remainder.c,v 1.6 1995/05/10 20:49:44 jtc Exp $"; -#endif + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. -/* - * wrapper remainder(x,p) - */ + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ #include <math.h> -#include "math_private.h" +#include <math_private.h> -#ifdef __STDC__ - double __remainder(double x, double y) /* wrapper remainder */ -#else - double __remainder(x,y) /* wrapper remainder */ - double x,y; -#endif + +/* wrapper remainder */ +double +__remainder (double x, double y) { -#ifdef _IEEE_LIBM - return __ieee754_remainder(x,y); -#else - double z; - z = __ieee754_remainder(x,y); - if(_LIB_VERSION == _IEEE_ || __isnan(y)) return z; - if(y==0.0) - return __kernel_standard(x,y,28); /* remainder(x,0) */ - else - return z; -#endif + if (((__builtin_expect (y == 0.0, 0) && ! __isnan (x)) + || (__builtin_expect (__isinf_ns (x), 0) && ! __isnan (y))) + && _LIB_VERSION != _IEEE_) + return __kernel_standard (x, y, 28); /* remainder domain */ + + return __ieee754_remainder (x, y); } weak_alias (__remainder, remainder) #ifdef NO_LONG_DOUBLE |