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Copy pathallocators.hpp
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72 lines (64 loc) · 1.48 KB
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// Copyright 2018 Glen Joseph Fernandes
// (glenjofe@gmail.com)
//
// 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)
#ifndef BOOST_MULTI_ARRAY_ALLOCATORS_HPP
#define BOOST_MULTI_ARRAY_ALLOCATORS_HPP
#include <boost/config.hpp>
#if !defined(BOOST_NO_CXX11_ALLOCATOR)
#include <memory>
#else
#include <new>
#endif
namespace boost {
namespace detail {
namespace multi_array {
template<class A, class T>
inline void destroy(A& allocator, T* ptr, T* end)
{
for (; ptr != end; ++ptr) {
#if !defined(BOOST_NO_CXX11_ALLOCATOR)
std::allocator_traits<A>::destroy(allocator,ptr);
#else
ptr->~T();
#endif
}
}
template<class A, class T>
inline void construct(A& allocator, T* ptr)
{
#if !defined(BOOST_NO_CXX11_ALLOCATOR)
std::allocator_traits<A>::construct(allocator,ptr);
#else
::new(static_cast<void*>(ptr)) T();
#endif
}
#if !defined(BOOST_NO_EXCEPTIONS)
template<class A, class T>
inline void construct(A& allocator, T* ptr, T* end)
{
T* start = ptr;
try {
for (; ptr != end; ++ptr) {
boost::detail::multi_array::construct(allocator,ptr);
}
} catch (...) {
boost::detail::multi_array::destroy(allocator,start,ptr);
throw;
}
}
#else
template<class A, class T>
inline void construct(A& allocator, T* ptr, T* end)
{
for (; ptr != end; ++ptr) {
boost::detail::multi_array::construct(allocator,ptr);
}
}
#endif
} // multi_array
} // detail
} // boost
#endif