WSJT-X/boost/libs/range/test/iterator_range_variant.cpp

61 lines
1.5 KiB
C++

// Boost.Range library
//
// Copyright Neil Groves 2014. 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)
//
// For more information, see http://www.boost.org/libs/range/
//
#include <boost/detail/workaround.hpp>
#include <boost/range/iterator_range.hpp>
#include <boost/range/functions.hpp>
#include <boost/range/as_literal.hpp>
#include <boost/variant.hpp>
#include <boost/mpl/vector.hpp>
#include <boost/test/test_tools.hpp>
#include <boost/test/unit_test.hpp>
#include <string>
namespace
{
enum E
{
e1, e2, e3
};
void test_variant_report()
{
typedef boost::mpl::vector<
E,
std::string,
boost::iterator_range<std::string::iterator>
>::type args;
typedef boost::make_variant_over<args>::type variant_t;
variant_t v;
std::string s;
v = boost::iterator_range<std::string::iterator>(s.begin(), s.end());
v = e2;
v = std::string();
// Rationale:
// This is cast to const char* to guard against ambiguity in the case
// where std::string::iterator it a char*
v = static_cast<const char*>("");
}
}
boost::unit_test::test_suite* init_unit_test_suite( int argc, char* argv[] )
{
boost::unit_test::test_suite* test =
BOOST_TEST_SUITE("iterator range and variant interoperability");
test->add(BOOST_TEST_CASE(&test_variant_report));
return test;
}