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65 lines
2.0 KiB
C++
65 lines
2.0 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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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()
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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://bugs.llvm.org/show_bug.cgi?id=16240 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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}
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