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Migration from SVN

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quemy 2012-08-30 11:30:11 +02:00
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branches/rc2.0/eo/src/eoSTLFunctor.h
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// -*- mode: c++; c-indent-level: 4; c++-member-init-indent: 8; comment-column: 35; -*-
//-----------------------------------------------------------------------------
// eoSTLFunctor.h
// (c) Maarten Keijzer 2001
/*
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Contact: todos@geneura.ugr.es, http://geneura.ugr.es
Marc.Schoenauer@polytechnique.fr
mak@dhi.dk
*/
//-----------------------------------------------------------------------------
#ifndef _eoSTLFunctor_H
#define _eoSTLFunctor_H
#include "eoFunctor.h"
/** @addtogroup Utilities
* @{
*/
/**
Generic set of classes that wrap an eoF, eoUF or eoBF so that they have the
copy semantics the STL functions usually require (i.e. they can be passed
by value, rather than the EO standard pass by reference).
The family consists of eoSTLF, eoSTLUF, eoSTLBF that modify eoF, eoUF and eoBF
respectively
*/
template <class R>
class eoSTLF
{
public:
typedef R result_type;
eoSTLF(eoF<R>& _f) : f(_f) {}
R operator()(void)
{
return f();
}
private :
eoF<R>& f;
};
#ifdef _MSVC
/// specialization of void for MSVC users, unfortunately only works for eoF,
/// as MSVC does not support partial specialization either
template <>
void eoSTLF<void>::operator()(void)
{
f();
}
#endif
/**
Generic set of classes that wrap an eoF, eoUF or eoBF so that they have the
copy semantics the STL functions usually require (i.e. they can be passed
by value, rather than the EO standard pass by reference).
The family consists of eoSTLF, eoSTLUF, eoSTLBF that modify eoF, eoUF and eoBF
respectively
*/
template <class A1, class R>
class eoSTLUF : public std::unary_function<A1, R>
{
public:
eoSTLUF(eoUF<A1,R>& _f) : f(_f) {}
R operator()(A1 a)
{
return f(a);
}
private:
eoUF<A1, R>& f;
};
/**
Generic set of classes that wrap an eoF, eoUF or eoBF so that they have the
copy semantics the STL functions usually require (i.e. they can be passed
by value, rather than the EO standard pass by reference).
The family consists of eoSTLF, eoSTLUF, eoSTLBF that modify eoF, eoUF and eoBF
respectively
*/
template <class A1, class A2, class R>
class eoSTLBF : public std::binary_function<A1, A2, R>
{
public:
eoSTLBF(eoUF<A1,R>& _f) : f(_f) {}
R operator()(A1 a1, A2 a2)
{
return f(a1, a2);
}
private:
eoBF<A1, A2, R>& f;
};
//! @todo: put automated wrappers here...
/** @} */
#endif