| //===----------------------------------------------------------------------===// |
| // |
| // 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 |
| |
| // This test relies on P0482 being fixed, which isn't in |
| // older Apple dylibs |
| // |
| // XFAIL: use_system_cxx_lib && target={{.+}}-apple-macosx10.{{9|10|11|12|13|14|15}} |
| |
| // <locale> |
| |
| // template <> class codecvt<char16_t, char8_t, mbstate_t> |
| |
| // result unshift(stateT& state, |
| // externT* to, externT* to_end, externT*& to_next) const; |
| |
| #include <cassert> |
| #include <locale> |
| |
| int main(int, char**) { |
| using F = std::codecvt<char16_t, char8_t, std::mbstate_t>; |
| const F& f = std::use_facet<F>(std::locale::classic()); |
| std::mbstate_t mbs = {}; |
| char8_t to[3]; |
| char8_t* to_next = nullptr; |
| assert(f.unshift(mbs, to, to + 3, to_next) == F::noconv); |
| assert(to_next == to); |
| return 0; |
| } |