| //===----------------------------------------------------------------------===// |
| // |
| // 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 |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // UNSUPPORTED: c++03, c++11, c++14, c++17 |
| |
| // XFAIL: availability-char8_t_support-missing |
| |
| // <locale> |
| |
| // template <> class codecvt<char32_t, char8_t, mbstate_t> |
| |
| // explicit codecvt(size_t refs = 0); |
| |
| #include <cassert> |
| #include <locale> |
| |
| using F = std::codecvt<char32_t, char8_t, std::mbstate_t>; |
| |
| struct my_facet : F { |
| static int count; |
| |
| explicit my_facet(std::size_t refs = 0) : F(refs) { ++count; } |
| |
| ~my_facet() { --count; } |
| }; |
| |
| int my_facet::count = 0; |
| |
| int main(int, char**) { |
| { |
| std::locale l(std::locale::classic(), new my_facet); |
| assert(my_facet::count == 1); |
| } |
| assert(my_facet::count == 0); |
| { |
| my_facet f(1); |
| assert(my_facet::count == 1); |
| { |
| std::locale l(std::locale::classic(), &f); |
| assert(my_facet::count == 1); |
| } |
| assert(my_facet::count == 1); |
| } |
| assert(my_facet::count == 0); |
| |
| return 0; |
| } |