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34 lines
1.0 KiB
C++
34 lines
1.0 KiB
C++
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// Copyright 2005-2009 Daniel James.
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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#if !defined(BOOST_UNORDERED_TEST_HELPERS_METAFUNCTIONS_HEADER)
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#define BOOST_UNORDERED_TEST_HELPERS_METAFUNCTIONS_HEADER
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#include <boost/config.hpp>
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#include <boost/type_traits/is_same.hpp>
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#include <boost/type_traits/declval.hpp>
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namespace test {
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template <class Container>
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struct is_set : public boost::is_same<typename Container::key_type,
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typename Container::value_type>
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{
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};
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template <class Container> struct has_unique_keys
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{
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static char flip(typename Container::iterator const&);
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static long flip(std::pair<typename Container::iterator, bool> const&);
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BOOST_STATIC_CONSTANT(bool,
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value = sizeof(long) ==
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sizeof(flip(
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(boost::declval<Container*>())
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->insert(
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boost::declval<typename Container::value_type const&>()))));
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};
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}
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#endif
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