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
main()19 int main()
20 {
21 assert( std::char_traits<char>::lt('\0', 'A'));
22 assert(!std::char_traits<char>::lt('A', '\0'));
23
24 assert(!std::char_traits<char>::lt('a', 'a'));
25 assert( std::char_traits<char>::lt('A', 'a'));
26 assert(!std::char_traits<char>::lt('a', 'A'));
27
28 assert( std::char_traits<char>::lt('a', 'z'));
29 assert( std::char_traits<char>::lt('A', 'Z'));
30
31 assert( std::char_traits<char>::lt(' ', 'A'));
32 assert( std::char_traits<char>::lt('A', '~'));
33 }
34