geometry/test/util/transform_variant.cpp

51 lines
1.5 KiB
C++

// Boost.Geometry (aka GGL, Generic Geometry Library)
// Unit Test
// Copyright (c) 2007-2012 Barend Gehrels, Amsterdam, the Netherlands.
// Copyright (c) 2008-2012 Bruno Lalande, Paris, France.
// Copyright (c) 2009-2012 Mateusz Loskot, London, UK.
// Parts of Boost.Geometry are redesigned from Geodan's Geographic Library
// (geolib/GGL), copyright (c) 1995-2010 Geodan, Amsterdam, the Netherlands.
// Use, modification and distribution is subject to 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)
#include <boost/test/included/test_exec_monitor.hpp>
#include <boost/geometry/util/transform_variant.hpp>
#include <boost/mpl/assert.hpp>
#include <boost/mpl/equal.hpp>
#include <boost/mpl/placeholders.hpp>
#include <boost/mpl/vector.hpp>
#include <boost/type_traits.hpp>
#include <boost/variant/variant.hpp>
using boost::mpl::placeholders::_;
template <typename ExpectedTypes, BOOST_VARIANT_ENUM_PARAMS(typename T)>
void check(boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)>)
{
BOOST_MPL_ASSERT((
boost::mpl::equal<
typename boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)>::types,
ExpectedTypes
>
));
}
int test_main(int, char* [])
{
typedef typename boost::geometry::transform_variant<
boost::variant<int, float, long>,
boost::add_pointer<_>
>::type transformed;
check<boost::mpl::vector<int*, float*, long*> >(transformed());
return 0;
}