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 19 int 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
