//===----------------------------------------------------------------------===// // // The LLVM Compiler Infrastructure // // This file is dual licensed under the MIT and the University of Illinois Open // Source Licenses. See LICENSE.TXT for details. // //===----------------------------------------------------------------------===// // <string> // template<> struct char_traits<char> // static constexpr bool lt(char_type c1, char_type c2); #include <string> #include <cassert> int main() { char c = '\0'; assert(!std::char_traits<char>::lt('a', 'a')); assert( std::char_traits<char>::lt('A', 'a')); assert(!std::char_traits<char>::lt('A' + 127, 'a')); assert(!std::char_traits<char>::lt('A' - 127, 'a')); assert( std::char_traits<char>::lt('A', 'a' + 127)); assert( std::char_traits<char>::lt('A', 'a' - 127)); }