1 //===----------------------------------------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is dual licensed under the MIT and the University of Illinois Open 6 // Source Licenses. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 // <locale> 11 12 // template <> class codecvt<char16_t, char, mbstate_t> 13 14 // result unshift(stateT& state, 15 // externT* to, externT* to_end, externT*& to_next) const; 16 17 #include <locale> 18 #include <string> 19 #include <vector> 20 #include <cassert> 21 22 typedef std::codecvt<char16_t, char, std::mbstate_t> F; 23 24 int main() 25 { 26 std::locale l = std::locale::classic(); 27 std::vector<char> to(3); 28 const F& f = std::use_facet<F>(l); 29 std::mbstate_t mbs = {}; 30 char* to_next = 0; 31 assert(f.unshift(mbs, to.data(), to.data() + to.size(), to_next) == F::noconv); 32 assert(to_next == to.data()); 33 } 34
