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/*
* Copyright (c) 2017, Intel Corporation
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of Intel Corporation nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef UTIL_SMALL_VECTOR_H
#define UTIL_SMALL_VECTOR_H
#include <vector>
#include <boost/version.hpp>
/*
* We use the small_vector constructors introduced in Boost 1.61 (trac bug
* #11866, github commit b436c91). If the Boost version is too old, we fall
* back to using std::vector.
*/
#if BOOST_VERSION >= 106100
# define HAVE_BOOST_CONTAINER_SMALL_VECTOR
#endif
#if defined(HAVE_BOOST_CONTAINER_SMALL_VECTOR)
# include <boost/container/small_vector.hpp>
#endif
namespace ue2 {
#if defined(HAVE_BOOST_CONTAINER_SMALL_VECTOR)
template <class T, std::size_t N,
typename Allocator = boost::container::new_allocator<T>>
using small_vector = boost::container::small_vector<T, N, Allocator>;
#else
// Boost version isn't new enough, fall back to just using std::vector.
template <class T, std::size_t N, typename Allocator = std::allocator<T>>
using small_vector = std::vector<T, Allocator>;
// Support workarounds for flat_set/flat_map and GCC 4.8.
#define SMALL_VECTOR_IS_STL_VECTOR 1
#endif // HAVE_BOOST_CONTAINER_SMALL_VECTOR
} // namespace ue2
#endif // UTIL_SMALL_VECTOR_H
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