cxx/test/re/re.results/re.results.acc/index.pass.cpp

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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <regex>
// class match_results<BidirectionalIterator, Allocator>
// const_reference operator[](size_type n) const;
#include <regex>
#include <cassert>
void
test()
{
std::match_results<const char*> m;
const char s[] = "abcdefghijk";
assert(std::regex_search(s, m, std::regex("cd((e)fg)hi")));
assert(m[0].first == s+2);
assert(m[0].second == s+9);
assert(m[0].matched == true);
assert(m[1].first == s+4);
assert(m[1].second == s+7);
assert(m[1].matched == true);
assert(m[2].first == s+4);
assert(m[2].second == s+5);
assert(m[2].matched == true);
assert(m[3].first == s+11);
assert(m[3].second == s+11);
assert(m[3].matched == false);
assert(m[4].first == s+11);
assert(m[4].second == s+11);
assert(m[4].matched == false);
}
int main()
{
test();
}