hash_no_ext_macro_2.cpp

Boost provides free peer-reviewed portable C++ source libraries. We emphasize libraries that work

// Copyright 2006-2008 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)

#define HASH_NAMESPACE boost
#define BOOST_HASH_NO_EXTENSIONS
#include <boost/functional/hash.hpp>
#undef BOOST_HASH_NO_EXTENSIONS
#include <boost/functional/hash.hpp>
#include <boost/detail/lightweight_test.hpp>
#include <map>

int main()
{
    std::map<int, int> x;

    x.insert(std::map<int, int>::value_type(53, -42));
    x.insert(std::map<int, int>::value_type(14, -75));

    HASH_NAMESPACE::hash<std::map<int, int> > hasher;
    BOOST_TEST(hasher(x) == HASH_NAMESPACE::hash_value(x));
    
    return boost::report_errors();
}