From 0f1e140e796f55cf5f07d39707f3e88d335f4ff1 Mon Sep 17 00:00:00 2001 From: joseph Date: Wed, 10 Dec 2008 16:39:54 +0000 Subject: Merge changes between r7357 and r7510 from /fsf/trunk. git-svn-id: svn://svn.eglibc.org/trunk@7511 7b3dc134-2b1b-0410-93df-9e9f96275f8d --- ports/sysdeps/alpha/fpu/s_rint.c | 45 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 45 insertions(+) create mode 100644 ports/sysdeps/alpha/fpu/s_rint.c (limited to 'ports/sysdeps/alpha/fpu/s_rint.c') diff --git a/ports/sysdeps/alpha/fpu/s_rint.c b/ports/sysdeps/alpha/fpu/s_rint.c new file mode 100644 index 000000000..e9aa02882 --- /dev/null +++ b/ports/sysdeps/alpha/fpu/s_rint.c @@ -0,0 +1,45 @@ +/* Copyright (C) 2000, 2006, 2007 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson. + + 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. + + 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 +#include + + +double +__rint (double x) +{ + double two52 = copysign (0x1.0p52, x); + double r; + + r = x + two52; + r = r - two52; + + /* rint(-0.1) == -0, and in general we'll always have the same sign + as our input. */ + return copysign (r, x); +} + +weak_alias (__rint, rint) +#ifdef NO_LONG_DOUBLE +strong_alias (__rint, __rintl) +weak_alias (__rint, rintl) +#endif +#if LONG_DOUBLE_COMPAT(libm, GLIBC_2_0) +compat_symbol (libm, __rint, rintl, GLIBC_2_0); +#endif -- cgit v1.2.3