convert/test/is_converter.cpp
2017-03-22 08:19:52 +11:00

87 lines
3.3 KiB
C++

// Boost.Convert test and usage example
// Copyright (c) 2009-2016 Vladimir Batov.
// Use, modification and distribution are subject to the Boost Software License,
// Version 1.0. See http://www.boost.org/LICENSE_1_0.txt.
#include "./test.hpp"
#if defined(BOOST_CONVERT_IS_NOT_SUPPORTED)
int main(int, char const* []) { return 0; }
#else
#include <boost/convert.hpp>
#include <boost/convert/detail/is_converter.hpp>
#include <boost/detail/lightweight_test.hpp>
using std::string;
using std::wstring;
namespace { namespace local
{
typedef void not_converter01 (string const&);
typedef void not_converter02 (int const&, string const&);
typedef void not_converter03 ();
typedef void converter01 (int const&, boost::optional<string>&);
typedef void converter02 (double const&, boost::optional<string>&);
struct converter11
{
void operator()(int const&, boost::optional<string>&) {}
void operator()(double const&, boost::optional<string>&) {}
void operator()(string const&, boost::optional<int>&) {}
};
struct converter12
{
template<typename TypeIn, typename TypeOut> void operator()(TypeIn const&, boost::optional<TypeOut>&) {}
};
struct converter13
{
void operator()(int const&, boost::optional<string>&) {}
};
struct converter14
{
void operator()(int const&, boost::optional<string>&) const {}
};
struct not_converter11
{
};
struct not_converter12
{
void operator()() {}
};
struct not_converter13
{
void operator()(int const&, string const&) {}
};
}}
int
main(int, char const* [])
{
BOOST_TEST( (boost::cnv::is_cnv<local::converter01, int, string>::value));
BOOST_TEST( (boost::cnv::is_cnv<local::converter01, double, string>::value));
BOOST_TEST( (boost::cnv::is_cnv<local::converter01, short int, string>::value));
BOOST_TEST( (boost::cnv::is_cnv<local::converter11, int, string>::value));
BOOST_TEST( (boost::cnv::is_cnv<local::converter11, double, string>::value));
BOOST_TEST( (boost::cnv::is_cnv<local::converter11, string, int>::value));
BOOST_TEST( (boost::cnv::is_cnv<local::converter12, int, string>::value));
BOOST_TEST( (boost::cnv::is_cnv<local::converter12, double, string>::value));
BOOST_TEST( (boost::cnv::is_cnv<local::converter12, string, int>::value));
BOOST_TEST( (boost::cnv::is_cnv<local::converter13, int, string>::value));
BOOST_TEST( (boost::cnv::is_cnv<local::converter13, double, string>::value));
BOOST_TEST( (boost::cnv::is_cnv<local::converter13, int, string>::value));
BOOST_TEST( (boost::cnv::is_cnv<local::converter14, int, string>::value));
BOOST_TEST(!(boost::cnv::is_cnv<local::converter13, string, int>::value));
BOOST_TEST(!(boost::cnv::is_cnv<local::converter14, string, int>::value));
BOOST_TEST(!(boost::cnv::is_cnv<local::not_converter01, int, string>::value));
BOOST_TEST(!(boost::cnv::is_cnv<local::not_converter02, int, string>::value));
BOOST_TEST(!(boost::cnv::is_cnv<local::not_converter11, int, string>::value));
BOOST_TEST(!(boost::cnv::is_cnv<local::not_converter12, int, string>::value));
BOOST_TEST(!(boost::cnv::is_cnv<local::not_converter13, int, string>::value));
return boost::report_errors();
}
#endif