From f6c5e12f635a6aacad093b2834515d1ff314b352 Mon Sep 17 00:00:00 2001 From: Thomas Frieden Date: Fri, 6 Aug 2004 12:56:43 +0000 Subject: [PATCH] Implements the functions rint and rintf (float version). The rint function rounds the argument to the integral value. Used for example in the Ogg Vorbis libraries. git-svn-id: file:///Users/olsen/Code/migration-svn-zu-git/logical-line-staging/clib2/trunk@14698 87f5fb63-7c3d-0410-a384-fd976d0f7a62 --- library/math_rint.c | 68 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 68 insertions(+) create mode 100755 library/math_rint.c diff --git a/library/math_rint.c b/library/math_rint.c new file mode 100755 index 0000000..19f4910 --- /dev/null +++ b/library/math_rint.c @@ -0,0 +1,68 @@ +/* + * $Id: math_rint.c,v 1.1 2004-08-06 12:56:43 hfrieden Exp $ + * + * :ts=4 + * + * Portable ISO 'C' (1994) runtime library for the Amiga computer + * Copyright (c) 2002-2004 by Olaf Barthel + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * - Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * - Neither the name of Olaf Barthel nor the names of contributors + * may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + * + * PowerPC math library based in part on work by Sun Microsystems + * 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. + */ + +#ifndef _MATH_HEADERS_H +#include "math_headers.h" +#endif /* _MATH_HEADERS_H */ + +#if defined(FLOATING_POINT_SUPPORT) + +/****************************************************************************/ + +extern double rint(double); +extern float rintf(float); + +/****************************************************************************/ + +double +rint(double x) +{ + return floor ( x+0.5 ); +} + +float +rintf(float x) +{ + return (float) floor ( x + 0.5f ); +} + +#endif