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/* lb-domain-function.h
* Copyright (C) 2005 Pascal Giorgi
*
* Written by Pascal Giorgi <pgiorgi@uwaterloo.ca>
*
* ========LICENCE========
* This file is part of the library LinBox.
*
* LinBox 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 2.1 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
* ========LICENCE========
*/
#ifndef __LINBOX_lb_domain_function_H
#define __LINBOX_lb_domain_function_H
#include <lb-domain-abstract.h>
#include <lb-domain-functor.h>
/*********************************************************
* API to launch a generic function over a linbox domain *
*********************************************************/
extern DomainTable domain_hashtable;
class DomainFunction {
public:
// call a functor over a domain from the hashtable, result is given through 1st parameter
template <class Functor, class Result>
static void call (Result &res, const std::pair<const DomainKey, DomainAbstract*> &domain, const Functor &functor){
ApplyDomainFunctor<Functor, Result> Ap(res, functor);
(domain.second)->Accept(Ap);
}
// call a functor over a domain from the hashtable, no result
template <class Functor>
static void call (const std::pair<const DomainKey, DomainAbstract*>& k, const Functor& f){
void *dumbresult;
call(dumbresult, k, f);
}
// call a functor over a domain from its key, result is given through 1st parameter
template <class Functor, class Result>
static void call (Result &res, const DomainKey &key, const Functor &functor){
DomainTable::iterator it = domain_hashtable.find(key);
if (it != domain_hashtable.end())
DomainFunction::call(res, *it, functor);
else
throw lb_runtime_error("LinBox ERROR: use of a non allocated domain\n");// throw an exception
}
// call a functor over a domain from its key, no result
template <class Functor>
static void call (const DomainKey &k, const Functor &f){
void *dumbresult;
call(dumbresult, k, f);
}
};
#endif
// Local Variables:
// mode: C++
// tab-width: 4
// indent-tabs-mode: nil
// c-basic-offset: 4
// End:
// vim:sts=4:sw=4:ts=4:et:sr:cino=>s,f0,{0,g0,(0,\:0,t0,+0,=s
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