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<char> 13 14// static constexpr bool lt(char_type c1, char_type c2); 15 16#include <string> 17#include <cassert> 18 19int main() 20{ 21 char c = '\0'; 22 assert(!std::char_traits<char>::lt('a', 'a')); 23 assert( std::char_traits<char>::lt('A', 'a')); 24 assert(!std::char_traits<char>::lt('A' + 127, 'a')); 25 assert(!std::char_traits<char>::lt('A' - 127, 'a')); 26 assert( std::char_traits<char>::lt('A', 'a' + 127)); 27 assert( std::char_traits<char>::lt('A', 'a' - 127)); 28} 29