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//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// <locale>
// template <>
// class codecvt<char, char, mbstate_t>
// : public locale::facet,
// public codecvt_base
// {
// public:
// typedef char intern_type;
// typedef char extern_type;
// typedef mbstate_t state_type;
// ...
// };
#include <locale>
#include <type_traits>
#include <cassert>
int main()
{
typedef std::codecvt<char, char, std::mbstate_t> F;
static_assert((std::is_base_of<std::locale::facet, F>::value), "");
static_assert((std::is_base_of<std::codecvt_base, F>::value), "");
static_assert((std::is_same<F::intern_type, char>::value), "");
static_assert((std::is_same<F::extern_type, char>::value), "");
static_assert((std::is_same<F::state_type, std::mbstate_t>::value), "");
std::locale l = std::locale::classic();
assert(std::has_facet<F>(l));
const F& f = std::use_facet<F>(l);
((void)f); // Prevent unused warning
(void)F::id;
}
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