ꦫꦣꦺꦤ꧀ꦄꦤ꧀ꦠꦱꦺꦤ

PATH: opt / cpanel / ea-ruby27 / src / passenger-release-6.1.2 / src / cxx_supportlib / vendor-modified / boost / core

/*
 *          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 {

// Block unintended ADL
namespace null_deleter_ns {

//! 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 null_deleter_ns

using null_deleter_ns::null_deleter;

} // namespace boost

#endif // BOOST_CORE_NULL_DELETER_HPP

[-] ref.hpp [edit]
[-] default_allocator.hpp [edit]
[-] allocator_access.hpp [edit]
[-] no_exceptions_support.hpp [edit]
[-] uncaught_exceptions.hpp [edit]
[-] invoke_swap.hpp [edit]
[-] quick_exit.hpp [edit]
[-] launder.hpp [edit]
[-] swap.hpp [edit]
[-] enable_if.hpp [edit]
[-] first_scalar.hpp [edit]
[-] memory_resource.hpp [edit]
[-] make_span.hpp [edit]
[-] scoped_enum.hpp [edit]
[-] exchange.hpp [edit]
[-] cmath.hpp [edit]
[-] lightweight_test_trait.hpp [edit]
[-] max_align.hpp [edit]
[-] demangle.hpp [edit]
[-] noinit_adaptor.hpp [edit]
[-] empty_value.hpp [edit]
[+] ..
[-] underlying_type.hpp [edit]
[-] null_deleter.hpp [edit]
[-] data.hpp [edit]
[-] allocator_traits.hpp [edit]
[-] is_same.hpp [edit]
[-] verbose_terminate_handler.hpp [edit]
[-] fclose_deleter.hpp [edit]
[-] span.hpp [edit]
[-] lightweight_test.hpp [edit]
[-] use_default.hpp [edit]
[-] alignof.hpp [edit]
[-] size.hpp [edit]
[-] checked_delete.hpp [edit]
[-] typeinfo.hpp [edit]
[-] nvp.hpp [edit]
[-] serialization.hpp [edit]
[-] snprintf.hpp [edit]
[-] type_name.hpp [edit]
[-] addressof.hpp [edit]
[-] explicit_operator_bool.hpp [edit]
[-] yield_primitives.hpp [edit]
[-] pointer_in_range.hpp [edit]
[+] detail
[-] pointer_traits.hpp [edit]
[-] identity.hpp [edit]
[-] alloc_construct.hpp [edit]
[-] ignore_unused.hpp [edit]
[-] bit.hpp [edit]
[-] noncopyable.hpp [edit]
[-] functor.hpp [edit]