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 int compare(const char_type* s1, const char_type* s2, size_t n); 15 16#include <string> 17#include <cassert> 18 19int main() 20{ 21#ifndef _LIBCPP_HAS_NO_UNICODE_CHARS 22#if __cplusplus >= 201103L 23 assert(std::char_traits<char16_t>::compare(u"", u"", 0) == 0); 24 assert(std::char_traits<char16_t>::compare(NULL, NULL, 0) == 0); 25 26 assert(std::char_traits<char16_t>::compare(u"1", u"1", 1) == 0); 27 assert(std::char_traits<char16_t>::compare(u"1", u"2", 1) < 0); 28 assert(std::char_traits<char16_t>::compare(u"2", u"1", 1) > 0); 29 30 assert(std::char_traits<char16_t>::compare(u"12", u"12", 2) == 0); 31 assert(std::char_traits<char16_t>::compare(u"12", u"13", 2) < 0); 32 assert(std::char_traits<char16_t>::compare(u"12", u"22", 2) < 0); 33 assert(std::char_traits<char16_t>::compare(u"13", u"12", 2) > 0); 34 assert(std::char_traits<char16_t>::compare(u"22", u"12", 2) > 0); 35 36 assert(std::char_traits<char16_t>::compare(u"123", u"123", 3) == 0); 37 assert(std::char_traits<char16_t>::compare(u"123", u"223", 3) < 0); 38 assert(std::char_traits<char16_t>::compare(u"123", u"133", 3) < 0); 39 assert(std::char_traits<char16_t>::compare(u"123", u"124", 3) < 0); 40 assert(std::char_traits<char16_t>::compare(u"223", u"123", 3) > 0); 41 assert(std::char_traits<char16_t>::compare(u"133", u"123", 3) > 0); 42 assert(std::char_traits<char16_t>::compare(u"124", u"123", 3) > 0); 43#endif 44#endif // _LIBCPP_HAS_NO_UNICODE_CHARS 45} 46