boost/signals2/detail/stack_vector.hpp
/*
A non-copyable vector which first allocates from the stack, before falling
back on usual std::allocator behavior.
*/
// Copyright Frank Mori Hess 2008.
// 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)
// See http://www.boost.org/libs/signals2 for library home page.
#ifndef BOOST_SIGNALS2_STACK_VECTOR_HPP
#define BOOST_SIGNALS2_STACK_VECTOR_HPP
#include <boost/noncopyable.hpp>
#include <boost/signals2/detail/stack_allocator.hpp>
#include <vector>
namespace boost
{
namespace signals2
{
namespace detail
{
template<typename T, std::size_t NumStackElements>
class stack_vector:
public std::vector<T, stack_allocator<T, NumStackElements> >,
public boost::noncopyable
{
typedef std::vector<T, stack_allocator<T, NumStackElements> > base_vector_type;
public:
static const std::size_t num_stack_elements = NumStackElements;
stack_vector(): base_vector_type(stack_allocator<T, num_stack_elements>(&_storage))
{
base_vector_type::reserve(num_stack_elements);
}
private:
stack_storage<T, num_stack_elements> _storage;
};
template<typename T, std::size_t NumStackElements>
const std::size_t stack_vector<T, NumStackElements>::num_stack_elements;
} // namespace detail
} // namespace signals2
} // namespace boost
#endif // BOOST_SIGNALS2_STACK_VECTOR_HPP