/* * Copyright (c) 2002 Apple Computer, Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved. * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this * file. * * The 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, QUIET ENJOYMENT 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 * * * *******************************************************************************/ #ifdef __APPLE_CC__ #if __APPLE_CC__ > 930 #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 */ #else /* __APPLE_CC__ version */ #error Version gcc-932 or higher required. Compilation terminated. #endif /* __APPLE_CC__ version */ #endif /* __APPLE_CC__ */