1 //===----------------------------------------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 // <locale> 10 11 // template <> class codecvt<wchar_t, char, mbstate_t> 12 13 // result unshift(stateT& state, 14 // externT* to, externT* to_end, externT*& to_next) const; 15 16 // This is pretty much just an "are you breathing" test 17 18 #include <locale> 19 #include <string> 20 #include <vector> 21 #include <cassert> 22 23 #include "test_macros.h" 24 25 typedef std::codecvt<wchar_t, char, std::mbstate_t> F; 26 27 int main(int, char**) 28 { 29 std::locale l = std::locale::classic(); 30 std::vector<F::extern_type> to(3); 31 const F& f = std::use_facet<F>(l); 32 std::mbstate_t mbs = {}; 33 F::extern_type* to_next = 0; 34 assert(f.unshift(mbs, to.data(), to.data() + to.size(), to_next) == F::ok); 35 assert(to_next == to.data()); 36 37 return 0; 38 } 39