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<wchar_t, char, mbstate_t> 13 14 // result in(stateT& state, 15 // const externT* from, const externT* from_end, const externT*& from_next, 16 // internT* to, internT* to_end, internT*& to_next) const; 17 18 #include <locale> 19 #include <string> 20 #include <vector> 21 #include <cassert> 22 23 typedef std::codecvt<wchar_t, char, std::mbstate_t> F; 24 25 int main() 26 { 27 std::locale l = std::locale::classic(); 28 const std::basic_string<F::extern_type> from("some text"); 29 const std::basic_string<F::intern_type> expected(from.begin(), from.end()); 30 std::basic_string<F::intern_type> to(from.size(), F::intern_type()); 31 const F& f = std::use_facet<F>(l); 32 std::mbstate_t mbs = {0}; 33 const F::extern_type* from_next = 0; 34 F::intern_type* to_next = 0; 35 F::result r = f.in(mbs, from.data(), from.data() + from.size(), from_next, 36 &to[0], &to[0] + to.size(), to_next); 37 assert(r == F::ok); 38 assert(from_next - from.data() == from.size()); 39 assert(to_next - to.data() == expected.size()); 40 assert(to_next - to.data() == expected.size()); 41 assert(to == expected); 42 } 43
