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<char32_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<char32_t>::compare(U"", U"", 0) == 0); 24 assert(std::char_traits<char32_t>::compare(NULL, NULL, 0) == 0); 25 26 assert(std::char_traits<char32_t>::compare(U"1", U"1", 1) == 0); 27 assert(std::char_traits<char32_t>::compare(U"1", U"2", 1) < 0); 28 assert(std::char_traits<char32_t>::compare(U"2", U"1", 1) > 0); 29 30 assert(std::char_traits<char32_t>::compare(U"12", U"12", 2) == 0); 31 assert(std::char_traits<char32_t>::compare(U"12", U"13", 2) < 0); 32 assert(std::char_traits<char32_t>::compare(U"12", U"22", 2) < 0); 33 assert(std::char_traits<char32_t>::compare(U"13", U"12", 2) > 0); 34 assert(std::char_traits<char32_t>::compare(U"22", U"12", 2) > 0); 35 36 assert(std::char_traits<char32_t>::compare(U"123", U"123", 3) == 0); 37 assert(std::char_traits<char32_t>::compare(U"123", U"223", 3) < 0); 38 assert(std::char_traits<char32_t>::compare(U"123", U"133", 3) < 0); 39 assert(std::char_traits<char32_t>::compare(U"123", U"124", 3) < 0); 40 assert(std::char_traits<char32_t>::compare(U"223", U"123", 3) > 0); 41 assert(std::char_traits<char32_t>::compare(U"133", U"123", 3) > 0); 42 assert(std::char_traits<char32_t>::compare(U"124", U"123", 3) > 0); 43#endif 44#endif // _LIBCPP_HAS_NO_UNICODE_CHARS 45} 46