# eoSTLFunctor.h

    00001 // -*- mode: c++; c-indent-level: 4; c++-member-init-indent: 8; comment-column: 35; -*-
    00002
    00003 //-----------------------------------------------------------------------------
    00004 // eoSTLFunctor.h
    00005 // (c) Maarten Keijzer 2001
    00006 /*
    00007     This library is free software; you can redistribute it and/or
    00008     modify it under the terms of the GNU Lesser General Public
    00009     License as published by the Free Software Foundation; either
    00010     version 2 of the License, or (at your option) any later version.
    00011
    00012     This library is distributed in the hope that it will be useful,
    00013     but WITHOUT ANY WARRANTY; without even the implied warranty of
    00014     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    00015     Lesser General Public License for more details.
    00016
    00017     You should have received a copy of the GNU Lesser General Public
    00018     License along with this library; if not, write to the Free Software
    00019     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
    00020
    00021     Contact: todos@geneura.ugr.es, http://geneura.ugr.es
    00022              Marc.Schoenauer@polytechnique.fr
    00023              mak@dhi.dk
    00024  */
    00025 //-----------------------------------------------------------------------------
    00026
    00027 #ifndef _eoSTLFunctor_H
    00028 #define _eoSTLFunctor_H
    00029
    00030 #include "eoFunctor.h"
    00031
    00040 template <class R>
    00041 class eoSTLF
    00042 {
    00043   public:
    00044
    00045     typedef R result_type;
    00046
    00047     eoSTLF(eoF<R>& _f) : f(_f) {}
    00048
    00049     R operator()(void)
    00050     {
    00051       return f();
    00052     }
    00053
    00054   private :
    00055
    00056   eoF<R>& f;
    00057 };
    00058
    00059 #ifdef _MSVC
    00062 template <>
    00063 void eoSTLF<void>::operator()(void)
    00064 {
    00065   f();
    00066 }
    00067 #endif
    00068
    00077 template <class A1, class R>
    00078 class eoSTLUF : public std::unary_function<A1, R>
    00079 {
    00080   public:
    00081     eoSTLUF(eoUF<A1,R>& _f) : f(_f) {}
    00082
    00083     R operator()(A1 a)
    00084     {
    00085       return f(a);
    00086     }
    00087
    00088   private:
    00089     eoUF<A1, R>& f;
    00090 };
    00091
    00100 template <class A1, class A2, class R>
    00101 class eoSTLBF : public std::binary_function<A1, A2, R>
    00102 {
    00103   public:
    00104     eoSTLBF(eoUF<A1,R>& _f) : f(_f) {}
    00105
    00106     R operator()(A1 a1, A2 a2)
    00107     {
    00108       return f(a1, a2);
    00109     }
    00110
    00111   private:
    00112
    00113     eoBF<A1, A2, R>& f;
    00114 };
    00115
    00116 // TODO: put automated wrappers here...
    00117
    00118 #endif