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 // <string> 11 12 // template<> struct char_traits<char16_t> 13 14 // static size_t length(const char_type* s); 15 16 #include <string> 17 #include <cassert> 18 main()19int main() 20 { 21 #ifndef _LIBCPP_HAS_NO_UNICODE_CHARS 22 assert(std::char_traits<char16_t>::length(u"") == 0); 23 assert(std::char_traits<char16_t>::length(u"a") == 1); 24 assert(std::char_traits<char16_t>::length(u"aa") == 2); 25 assert(std::char_traits<char16_t>::length(u"aaa") == 3); 26 assert(std::char_traits<char16_t>::length(u"aaaa") == 4); 27 #endif // _LIBCPP_HAS_NO_UNICODE_CHARS 28 } 29