xref: /external/libcxx/test/localization/locale.categories/category.collate/locale.collate/types.pass.cpp

//===----------------------------------------------------------------------===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//

// <locale>

// template <class charT>
// class collate
//     : public locale::facet {
// public:
//     typedef charT char_type;
//     typedef basic_string<charT>string_type;
//
//     static locale::id id;
// };

#include <locale>
#include <type_traits>
#include <cassert>

int main()
{
    std::locale l = std::locale::classic();
    {
        assert(std::has_facet<std::collate<char> >(l));
        const std::collate<char>& f = std::use_facet<std::collate<char> >(l);
        {
            (void)std::collate<char>::id;
        }
        static_assert((std::is_same<std::collate<char>::char_type, char>::value), "");
        static_assert((std::is_same<std::collate<char>::string_type, std::string>::value), "");
        static_assert((std::is_base_of<std::locale::facet, std::collate<char> >::value), "");
    }
    {
        assert(std::has_facet<std::collate<wchar_t> >(l));
        const std::collate<wchar_t>& f = std::use_facet<std::collate<wchar_t> >(l);
        {
            (void)std::collate<wchar_t>::id;
        }
        static_assert((std::is_same<std::collate<wchar_t>::char_type, wchar_t>::value), "");
        static_assert((std::is_same<std::collate<wchar_t>::string_type, std::wstring>::value), "");
        static_assert((std::is_base_of<std::locale::facet, std::collate<wchar_t> >::value), "");
    }
}