46 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, class traits = regex_traits<charT>> class basic_regex;12 13// template <class ForwardIterator>14// basic_regex(ForwardIterator first, ForwardIterator last);15 16#include <regex>17#include <cassert>18 19#include "test_iterators.h"20#include "test_macros.h"21 22template <class Iter>23void24test(Iter first, Iter last, unsigned mc)25{26 std::basic_regex<typename std::iterator_traits<Iter>::value_type> r(first, last);27 assert(r.flags() == std::regex_constants::ECMAScript);28 assert(r.mark_count() == mc);29}30 31int main(int, char**)32{33 typedef forward_iterator<std::string::const_iterator> F;34 std::string s1("\\(a\\)");35 std::string s2("\\(a[bc]\\)");36 std::string s3("\\(a\\([bc]\\)\\)");37 std::string s4("(a([bc]))");38 39 test(F(s1.begin()), F(s1.end()), 0);40 test(F(s2.begin()), F(s2.end()), 0);41 test(F(s3.begin()), F(s3.end()), 0);42 test(F(s4.begin()), F(s4.end()), 2);43 44 return 0;45}46