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File: [cvs.NetBSD.org] / src / lib / libm / src / s_fmaxf.c (download)
Revision 1.2.2.2, Fri Mar 12 21:58:42 2010 UTC (14 years ago) by riz
Pull up following revision(s) (requested by snj in ticket #1330): lib/libm/man/fmax.3: revision 1.1-1.2 lib/libm/src/s_fmin.c: revision 1.1-1.2 lib/libm/src/s_fdim.c: revision 1.1 lib/libm/src/s_fmaxl.c: revision 1.1 lib/libm/Makefile: revision 1.90 include/math.h: revision 1.49 lib/libm/src/s_fmaxf.c: revision 1.1 lib/libm/src/s_fmax.c: revision 1.1 lib/libm/shlib_version: revision 1.10 distrib/sets/lists/base/md.sparc64: revision 1.63 (via patch) distrib/sets/lists/base/shl.mi: revision 1.495 (via patch) lib/libm/src/s_fminl.c: revision 1.1 distrib/sets/lists/comp/mi: revision 1.1317 lib/libm/man/fdim.3: revision 1.1-1.3 lib/libm/src/s_fminf.c: revision 1.1 distrib/sets/lists/base/md.amd64: revision 1.70 (via patch) add f{min,max,dim}{,l,f} from FreeBSD These functions are going to first appear in 5.1, not 6.0. |
/*- * Copyright (c) 2004 David Schultz <das@FreeBSD.ORG> * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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. */ #include <sys/cdefs.h> __RCSID("NetBSD$"); #ifdef notdef __FBSDID("$FreeBSD: src/lib/msun/src/s_fmaxf.c,v 1.1 2004/06/30 07:04:01 das Exp $"); #endif #include <math.h> #include <machine/ieee.h> float fmaxf(float x, float y) { union ieee_single_u u[2]; u[0].sngu_f = x; u[1].sngu_f = y; /* Check for NaNs to avoid raising spurious exceptions. */ if (u[0].sngu_sng.sng_exp == SNG_EXP_INFNAN && u[0].sngu_sng.sng_frac != 0) return (y); if (u[1].sngu_sng.sng_exp == SNG_EXP_INFNAN && u[1].sngu_sng.sng_frac != 0) return (x); /* Handle comparisons of sng_signed zeroes. */ if (u[0].sngu_sng.sng_sign != u[1].sngu_sng.sng_sign) return (u[u[0].sngu_sng.sng_sign].sngu_f); return (x > y ? x : y); }