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 // <codecvt> 11 12 // template <class Elem, unsigned long Maxcode = 0x10ffff, 13 // codecvt_mode Mode = (codecvt_mode)0> 14 // class codecvt_utf16 15 // : public codecvt<Elem, char, mbstate_t> 16 // { 17 // // unspecified 18 // }; 19 20 // result 21 // unshift(stateT& state, 22 // externT* to, externT* to_end, externT*& to_next) const; 23 24 #include <codecvt> 25 #include <cassert> 26 27 int main() 28 { 29 { 30 typedef std::codecvt_utf16<wchar_t> C; 31 C c; 32 char n[4] = {0}; 33 std::mbstate_t m; 34 char* np = nullptr; 35 std::codecvt_base::result r = c.unshift(m, n, n+4, np); 36 assert(r == std::codecvt_base::noconv); 37 } 38 { 39 typedef std::codecvt_utf16<char16_t> C; 40 C c; 41 char n[4] = {0}; 42 std::mbstate_t m; 43 char* np = nullptr; 44 std::codecvt_base::result r = c.unshift(m, n, n+4, np); 45 assert(r == std::codecvt_base::noconv); 46 } 47 { 48 typedef std::codecvt_utf16<char32_t> C; 49 C c; 50 char n[4] = {0}; 51 std::mbstate_t m; 52 char* np = nullptr; 53 std::codecvt_base::result r = c.unshift(m, n, n+4, np); 54 assert(r == std::codecvt_base::noconv); 55 } 56 } 57
