1bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant//===----------------------------------------------------------------------===// 2bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// 3f5256e16dfc425c1d466f6308d4026d529ce9e0bHoward Hinnant// The LLVM Compiler Infrastructure 4bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// 5b64f8b07c104c6cc986570ac8ee0ed16a9f23976Howard Hinnant// This file is dual licensed under the MIT and the University of Illinois Open 6b64f8b07c104c6cc986570ac8ee0ed16a9f23976Howard Hinnant// Source Licenses. See LICENSE.TXT for details. 7bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// 8bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant//===----------------------------------------------------------------------===// 9bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 10bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// <locale> 11bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 12bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// template <> class codecvt<char16_t, char, mbstate_t> 13bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 14bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// result unshift(stateT& state, 15bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// externT* to, externT* to_end, externT*& to_next) const; 16bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 17bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant#include <locale> 18bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant#include <string> 19bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant#include <vector> 20bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant#include <cassert> 21bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 22bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnanttypedef std::codecvt<char16_t, char, std::mbstate_t> F; 23bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 24bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantint main() 25bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant{ 26bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant std::locale l = std::locale::classic(); 27bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant std::vector<char> to(3); 28bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant const F& f = std::use_facet<F>(l); 299c2ce95063997677fbf4978c99dfa98d2691139dHoward Hinnant std::mbstate_t mbs = {0}; 30bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant char* to_next = 0; 31bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(f.unshift(mbs, to.data(), to.data() + to.size(), to_next) == F::noconv); 32bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(to_next == to.data()); 33bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant} 34