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 // <regex> 10 11 // template <class charT> struct regex_traits; 12 13 // static std::size_t length(const char_type* p); 14 15 #include <regex> 16 #include <cassert> 17 #include "test_macros.h" 18 main(int,char **)19int main(int, char**) 20 { 21 assert(std::regex_traits<char>::length("") == 0); 22 assert(std::regex_traits<char>::length("1") == 1); 23 assert(std::regex_traits<char>::length("12") == 2); 24 assert(std::regex_traits<char>::length("123") == 3); 25 26 #ifndef TEST_HAS_NO_WIDE_CHARACTERS 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 #endif 32 33 return 0; 34 } 35