1 //===----------------------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8
9 // <string>
10
11 // template<> struct char_traits<char>
12
13 // static constexpr bool lt(char_type c1, char_type c2);
14
15 #include <string>
16 #include <cassert>
17
18 #include "test_macros.h"
19
main(int,char **)20 int main(int, char**)
21 {
22 assert(std::char_traits<char>::lt('\0', 'A') == ('\0' < 'A'));
23 assert(std::char_traits<char>::lt('A', '\0') == ('A' < '\0'));
24
25 assert(std::char_traits<char>::lt('a', 'a') == ('a' < 'a'));
26 assert(std::char_traits<char>::lt('A', 'a') == ('A' < 'a'));
27 assert(std::char_traits<char>::lt('a', 'A') == ('a' < 'A'));
28
29 assert(std::char_traits<char>::lt('a', 'z') == ('a' < 'z'));
30 assert(std::char_traits<char>::lt('A', 'Z') == ('A' < 'Z'));
31
32 assert(std::char_traits<char>::lt(' ', 'A') == (' ' < 'A'));
33 assert(std::char_traits<char>::lt('A', '~') == ('A' < '~'));
34
35 return 0;
36 }
37