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// <string> 11bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 12bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// template<> struct char_traits<char32_t> 13bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 14bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// static size_t length(const char_type* s); 15bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 16bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant#include <string> 17bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant#include <cassert> 18bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 19bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantint main() 20bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant{ 21bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant#ifndef _LIBCPP_HAS_NO_UNICODE_CHARS 2290dc8dd841b975fccfa4a278b9b44065d3644839Dan Albert#if __cplusplus >= 201103L 23bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(std::char_traits<char32_t>::length(U"") == 0); 24bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(std::char_traits<char32_t>::length(U"a") == 1); 25bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(std::char_traits<char32_t>::length(U"aa") == 2); 26bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(std::char_traits<char32_t>::length(U"aaa") == 3); 27bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(std::char_traits<char32_t>::length(U"aaaa") == 4); 2890dc8dd841b975fccfa4a278b9b44065d3644839Dan Albert#endif 296e0a1f458e41c08112a130f50636ced03907e29eHoward Hinnant#endif // _LIBCPP_HAS_NO_UNICODE_CHARS 30bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant} 31