49 lines
1.5 KiB
C++
49 lines
1.5 KiB
C++
/*
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A non-copyable vector which first allocates from the stack, before falling
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back on usual std::allocator behavior.
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*/
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// Copyright Frank Mori Hess 2008.
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// Distributed under the Boost Software License, Version
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// 1.0. (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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// See http://www.boost.org/libs/signals2 for library home page.
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#ifndef BOOST_SIGNALS2_STACK_VECTOR_HPP
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#define BOOST_SIGNALS2_STACK_VECTOR_HPP
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#include <boost/noncopyable.hpp>
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#include <boost/signals2/detail/stack_allocator.hpp>
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#include <vector>
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namespace boost
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{
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namespace signals2
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{
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namespace detail
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{
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template<typename T, std::size_t NumStackElements>
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class stack_vector:
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public std::vector<T, stack_allocator<T, NumStackElements> >,
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public boost::noncopyable
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{
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typedef std::vector<T, stack_allocator<T, NumStackElements> > base_vector_type;
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public:
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static const std::size_t num_stack_elements = NumStackElements;
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stack_vector(): base_vector_type(stack_allocator<T, num_stack_elements>(&_storage))
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{
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base_vector_type::reserve(num_stack_elements);
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}
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private:
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stack_storage<T, num_stack_elements> _storage;
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};
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template<typename T, std::size_t NumStackElements>
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const std::size_t stack_vector<T, NumStackElements>::num_stack_elements;
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} // namespace detail
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} // namespace signals2
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} // namespace boost
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#endif // BOOST_SIGNALS2_STACK_VECTOR_HPP
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