/* * Copyright (c) 2002 Apple Computer, Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * The contents of this file constitute Original Code as defined in and * are subject to the Apple Public Source License Version 1.1 (the * "License"). You may not use this file except in compliance with the * License. Please obtain a copy of the License at * http://www.apple.com/publicsource and read it before using this file. * * This Original Code and all software distributed under the License are * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the * License for the specific language governing rights and limitations * under the License. * * @APPLE_LICENSE_HEADER_END@ */ /******************************************************************************* * * * File: minmaxdim.c * * * * Contains: C99 fmin, fmax, fdim, and fma * * * * Copyright © 2001 Apple Computer, Inc. All rights reserved. * * * * Written by Stephen C. Peters, started in November 2001. * * * * A MathLib v5 file. * * * * Change History (most recent first): * * * * 08 Dec 01 scp First created. * * * * A version of gcc higher than 932 is required. * * * * GCC compiler options: * * optimization level 3 (-O3) * * -fschedule-insns -finline-functions -funroll-all-loops * * * *******************************************************************************/ #if defined(BUILDING_FOR_CARBONCORE_LEGACY) double fdim ( double x, double y ) { if ((x != x) || (y != y)) return ( x + y ); else if (x > y) return ( x - y ); else return 0.0; } // // N.B. max/min (-0, 0) allows implementation dependent result // double fmax ( double x, double y ) { if (x != x) return y; else if (y != y) return x; else if (x < y) return y; else return x; } double fmin ( double x, double y ) { if (x != x) return y; else if (y != y) return x; else if (x > y) return y; else return x; } #else /* !BUILDING_FOR_CARBONCORE_LEGACY */ float fdimf ( float x, float y ) { if ((x != x) || (y != y)) return ( x + y ); else if (x > y) return ( x - y ); else return 0.0; } float fmaxf ( float x, float y ) { if (x != x) return y; else if (y != y) return x; else if (x < y) return y; else return x; } float fminf ( float x, float y ) { if (x != x) return y; else if (y != y) return x; else if (x > y) return y; else return x; } double fma ( double x, double y, double z ) { return (x * y) + z; } float fmaf ( float x, float y, float z ) { return (x * y) + z; } #endif /* !BUILDING_FOR_CARBONCORE_LEGACY */