abs.h
Go to the documentation of this file.00001 /* 00002 This file is part of the CVD Library. 00003 00004 Copyright (C) 2005 The Authors 00005 00006 This library is free software; you can redistribute it and/or 00007 modify it under the terms of the GNU Lesser General Public 00008 License as published by the Free Software Foundation; either 00009 version 2.1 of the License, or (at your option) any later version. 00010 00011 This library is distributed in the hope that it will be useful, 00012 but WITHOUT ANY WARRANTY; without even the implied warranty of 00013 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00014 Lesser General Public License for more details. 00015 00016 You should have received a copy of the GNU Lesser General Public 00017 License along with this library; if not, write to the Free Software 00018 Foundation, Inc., 00019 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 00020 */ 00021 #ifndef CVD_ABS_H 00022 #define CVD_ABS_H 00023 00024 namespace CVD 00025 { 00029 template <class T> 00030 inline T abs(T t) { return t<0 ? -t : t; } 00034 inline unsigned char abs(unsigned char b) { return b; } 00038 inline unsigned short abs(unsigned short u) { return u; } 00042 inline unsigned int abs(unsigned int u) { return u; } 00046 inline unsigned long abs(unsigned long u) { return u; } 00047 } 00048 #endif 00049