1// -*- C++ -*-
2//===----------------------------------------------------------------------===//
3//
4//                     The LLVM Compiler Infrastructure
5//
6// This file is dual licensed under the MIT and the University of Illinois Open
7// Source Licenses. See LICENSE.TXT for details.
8//
9//===----------------------------------------------------------------------===//
10
11// <regex>
12
13// template <class charT> struct regex_traits;
14
15// static std::size_t length(const char_type* p);
16
17#include <regex>
18#include <cassert>
19
20int main()
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