1 // -*- C++ -*-
2 //===----------------------------------------------------------------------===//
3 //
4 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
5 // See https://llvm.org/LICENSE.txt for license information.
6 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7 //
8 //===----------------------------------------------------------------------===//
9 
10 // <regex>
11 
12 // template <class charT> struct regex_traits;
13 
14 // static std::size_t length(const char_type* p);
15 
16 #include <regex>
17 #include <cassert>
18 #include "test_macros.h"
19 
main(int,char **)20 int main(int, char**)
21 {
22     assert(std::regex_traits<char>::length("") == 0);
23     assert(std::regex_traits<char>::length("1") == 1);
24     assert(std::regex_traits<char>::length("12") == 2);
25     assert(std::regex_traits<char>::length("123") == 3);
26 
27     assert(std::regex_traits<wchar_t>::length(L"") == 0);
28     assert(std::regex_traits<wchar_t>::length(L"1") == 1);
29     assert(std::regex_traits<wchar_t>::length(L"12") == 2);
30     assert(std::regex_traits<wchar_t>::length(L"123") == 3);
31 
32   return 0;
33 }
34