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