35 lines · cpp
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-exception6//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 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_CHARACTERS27 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#endif32 33 return 0;34}35