| //===----------------------------------------------------------------------===// |
| // |
| // 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<char16_t, char8_t, mbstate_t> |
| |
| // int length(stateT& state, const externT* from, const externT* from_end, size_t max) 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 = {}; |
| const char8_t from[] = u8"some text"; |
| assert(f.length(mbs, from, from + 10, 0) == 0); |
| assert(f.length(mbs, from, from + 10, 8) == 8); |
| assert(f.length(mbs, from, from + 10, 9) == 9); |
| assert(f.length(mbs, from, from + 10, 10) == 10); |
| assert(f.length(mbs, from, from + 10, 100) == 10); |
| return 0; |
| } |