66 lines
2.0 KiB
C++
66 lines
2.0 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// <regex>
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// template <class BidirectionalIterator, class Allocator, class charT, class traits>
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// bool
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// regex_search(BidirectionalIterator first, BidirectionalIterator last,
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// match_results<BidirectionalIterator, Allocator>& m,
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// const basic_regex<charT, traits>& e,
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// regex_constants::match_flag_type flags = regex_constants::match_default);
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#include <regex>
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#include <string>
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#include <list>
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#include <cassert>
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#include "test_macros.h"
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int main(int, char**)
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{
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// This regex_iterator uses regex_search(__wrap_iter<_Iter> __first, ...)
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// Test for https://llvm.org/PR16240 fixed in r185273.
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{
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std::string s("aaaa a");
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std::regex re("\\ba");
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std::sregex_iterator it(s.begin(), s.end(), re);
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std::sregex_iterator end = std::sregex_iterator();
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assert(it->position(0) == 0);
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assert(it->length(0) == 1);
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++it;
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assert(it->position(0) == 5);
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assert(it->length(0) == 1);
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++it;
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assert(it == end);
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}
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// This regex_iterator uses regex_search(_BidirectionalIterator __first, ...)
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{
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std::string s("aaaa a");
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std::list<char> l(s.begin(), s.end());
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std::regex re("\\ba");
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std::regex_iterator<std::list<char>::iterator> it(l.begin(), l.end(), re);
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std::regex_iterator<std::list<char>::iterator> end = std::regex_iterator<std::list<char>::iterator>();
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assert(it->position(0) == 0);
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assert(it->length(0) == 1);
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++it;
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assert(it->position(0) == 5);
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assert(it->length(0) == 1);
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++it;
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assert(it == end);
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}
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return 0;
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}
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