unordered/test/helpers/strong.hpp

// Copyright 2005-2009 Daniel James.
// 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)

#if !defined(BOOST_UNORDERED_TEST_HELPERS_STRONG_HEADER)
#define BOOST_UNORDERED_TEST_HELPERS_STRONG_HEADER

#include "./equivalent.hpp"
#include "./exception_test.hpp"
#include "./list.hpp"
#include <boost/config.hpp>
#include <iterator>

namespace test {
template <class X> class strong
{
    typedef test::list<BOOST_DEDUCED_TYPENAME X::value_type> values_type;
    values_type values_;
    unsigned int allocations_;

  public:
    void store(X const& x, unsigned int allocations = 0)
    {
        DISABLE_EXCEPTIONS;
        values_.clear();
        values_.insert(x.cbegin(), x.cend());
        allocations_ = allocations;
    }

    void test(X const& x, unsigned int allocations = 0) const
    {
        if (!(x.size() == values_.size() &&
                test::equal(
                    x.cbegin(), x.cend(), values_.begin(), test::equivalent)))
            BOOST_ERROR("Strong exception safety failure.");
        if (allocations != allocations_)
            BOOST_ERROR("Strong exception failure: extra allocations.");
    }
};
}

#endif