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NoDeleter.h
// Copyright (C) 2008 Garth N. Wells
//
// This file is part of DOLFIN.
//
// DOLFIN 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 3 of the License, or
// (at your option) any later version.
//
// DOLFIN 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 DOLFIN. If not, see <http://www.gnu.org/licenses/>.
//
// Modified by Martin Alnes, 2008.
//
// First added: 2008-09-11
// Last changed: 2011-01-28
#ifndef __NO_DELETER_H
#define __NO_DELETER_H
#include <memory>
namespace dolfin
{
class NoDeleter
{
public:
void operator() (const void *) {}
};
template <typename T>
std::shared_ptr<T> reference_to_no_delete_pointer(T& r)
{
return std::shared_ptr<T>(&r, NoDeleter());
}
}
#endif
dolfin::NoDeleter
NoDeleter is a customised deleter intended for use with smart pointers.
Definition NoDeleter.h:34
dolfin::NoDeleter::operator()
void operator()(const void *)
Do nothing.
Definition NoDeleter.h:37
dolfin
Definition adapt.h:30
dolfin::reference_to_no_delete_pointer
std::shared_ptr< T > reference_to_no_delete_pointer(T &r)
Helper function to construct shared pointer with NoDeleter with cleaner syntax.
Definition NoDeleter.h:43