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/*
* Copyright Andrey Semashev 2007 - 2014.
* Distributed under the Boost Software License, Version 1.0.
* (See accompanying file LICENSE_1_0.txt or copy at
* http://www.boost.org/LICENSE_1_0.txt)
*/
/*!
* \file null_deleter.hpp
* \author Andrey Semashev
* \date 22.04.2007
*
* This header contains a \c null_deleter implementation. This is an empty
* function object that receives a pointer and does nothing with it.
* Such empty deletion strategy may be convenient, for example, when
* constructing <tt>shared_ptr</tt>s that point to some object that should not be
* deleted (i.e. a variable on the stack or some global singleton, like <tt>std::cout</tt>).
*/
#ifndef BOOST_CORE_NULL_DELETER_HPP
#define BOOST_CORE_NULL_DELETER_HPP
#include <boost/config.hpp>
#ifdef BOOST_HAS_PRAGMA_ONCE
#pragma once
#endif
namespace boost {
//! A function object that does nothing and can be used as an empty deleter for \c shared_ptr
struct null_deleter
{
//! Function object result type
typedef void result_type;
/*!
* Does nothing
*/
template< typename T >
void operator() (T*) const BOOST_NOEXCEPT {}
};
} // namespace boost
#endif // BOOST_CORE_NULL_DELETER_HPP
Version data entries
54 entries across 54 versions & 3 rubygems