96 lines
2.0 KiB
C++
96 lines
2.0 KiB
C++
/*
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* Copyright Andrey Semashev 2007 - 2015.
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* Distributed under the Boost Software License, Version 1.0.
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* (See accompanying file LICENSE_1_0.txt or copy at
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* http://www.boost.org/LICENSE_1_0.txt)
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*/
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/*!
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* \file stateless_allocator.hpp
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* \author Andrey Semashev
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* \date 11.02.2012
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*
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* \brief This header is the Boost.Log library implementation, see the library documentation
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* at http://www.boost.org/doc/libs/release/libs/log/doc/html/index.html.
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*/
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#ifndef BOOST_LOG_STATELESS_ALLOCATOR_HPP_INCLUDED_
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#define BOOST_LOG_STATELESS_ALLOCATOR_HPP_INCLUDED_
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#include <boost/log/detail/config.hpp>
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#include <cstddef>
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#include <cstdlib>
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#include <memory>
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#include <boost/log/detail/header.hpp>
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#ifdef BOOST_HAS_PRAGMA_ONCE
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#pragma once
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#endif
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namespace boost {
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BOOST_LOG_OPEN_NAMESPACE
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namespace aux {
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#if defined(_STLPORT_VERSION)
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#if !defined(BOOST_NO_CXX11_TEMPLATE_ALIASES)
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template< typename T >
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using stateless_allocator = std::allocator< T >;
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#else
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template< typename T >
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struct stateless_allocator :
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public std::allocator< T >
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{
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};
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#endif
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#else
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template< typename T >
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struct stateless_allocator
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{
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template< typename U >
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struct rebind
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{
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typedef stateless_allocator< U > other;
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};
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typedef T value_type;
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typedef value_type* pointer;
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typedef value_type const* const_pointer;
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typedef value_type& reference;
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typedef value_type const& const_reference;
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typedef std::size_t size_type;
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typedef std::ptrdiff_t difference_type;
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static pointer allocate(size_type n, const void* = NULL)
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{
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pointer p = static_cast< pointer >(std::malloc(n * sizeof(value_type)));
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if (p)
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return p;
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else
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throw std::bad_alloc();
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}
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static void deallocate(pointer p, size_type)
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{
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std::free(p);
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}
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};
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#endif
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} // namespace aux
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BOOST_LOG_CLOSE_NAMESPACE // namespace log
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} // namespace boost
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#include <boost/log/detail/footer.hpp>
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#endif // BOOST_LOG_STATELESS_ALLOCATOR_HPP_INCLUDED_
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