algo.h

Go to the documentation of this file.
00001 /** @file rutz/algo.h some trivial algos from <algorithm>, but much
00002     more lightweight */
00003 
00004 ///////////////////////////////////////////////////////////////////////
00005 //
00006 // Copyright (c) 2001-2004 California Institute of Technology
00007 // Copyright (c) 2004-2007 University of Southern California
00008 // Rob Peters <rjpeters at usc dot edu>
00009 //
00010 // created: Sun Jul 22 23:31:48 2001
00011 // commit: $Id: algo.h 8249 2007-04-12 06:03:40Z rjpeters $
00012 // $HeadURL: svn://isvn.usc.edu/software/invt/trunk/saliency/src/rutz/algo.h $
00013 //
00014 // --------------------------------------------------------------------
00015 //
00016 // This file is part of GroovX.
00017 //   [http://ilab.usc.edu/rjpeters/groovx/]
00018 //
00019 // GroovX is free software; you can redistribute it and/or modify it
00020 // under the terms of the GNU General Public License as published by
00021 // the Free Software Foundation; either version 2 of the License, or
00022 // (at your option) any later version.
00023 //
00024 // GroovX is distributed in the hope that it will be useful, but
00025 // WITHOUT ANY WARRANTY; without even the implied warranty of
00026 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00027 // General Public License for more details.
00028 //
00029 // You should have received a copy of the GNU General Public License
00030 // along with GroovX; if not, write to the Free Software Foundation,
00031 // Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
00032 //
00033 ///////////////////////////////////////////////////////////////////////
00034 
00035 #ifndef GROOVX_RUTZ_ALGO_H_UTC20050626084020_DEFINED
00036 #define GROOVX_RUTZ_ALGO_H_UTC20050626084020_DEFINED
00037 
00038 namespace rutz
00039 {
00040   template <class T>
00041   inline const T& min(const T& a, const T& b)
00042   {
00043     /* return (a < b) ? a : b; */ // This triggers warnings in some compilers :(
00044     if (a < b) return a; return b;
00045   }
00046 
00047   template <class T>
00048   inline const T& max(const T& a, const T& b)
00049   {
00050     /* return (a > b) ? a : b; */ // This triggers warnings in some compilers :(
00051     if (a > b) return a; return b;
00052   }
00053 
00054   template <class T>
00055   inline T abs(const T& val)
00056   {
00057     return (val < 0) ? -val : val;
00058   }
00059 
00060   template <class T>
00061   inline T clamp(const T& val, const T& lower, const T& upper)
00062   {
00063     return rutz::max(lower, rutz::min(upper, val));
00064   }
00065 
00066   template <class T>
00067   inline void swap2(T& t1, T& t2)
00068   {
00069     T t2_copy = t2;
00070     t2 = t1;
00071     t1 = t2_copy;
00072   }
00073 }
00074 
00075 static const char __attribute__((used)) vcid_groovx_rutz_algo_h_utc20050626084020[] = "$Id: algo.h 8249 2007-04-12 06:03:40Z rjpeters $ $HeadURL: svn://isvn.usc.edu/software/invt/trunk/saliency/src/rutz/algo.h $";
00076 #endif // !GROOVX_RUTZ_ALGO_H_UTC20050626084020_DEFINED
Generated on Sun May 8 08:42:08 2011 for iLab Neuromorphic Vision Toolkit by  doxygen 1.6.3