CVD 0.8
cvd/abs.h
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