blob: 91020851a3088130eb81c79f0c9bd2d0999c6764 [file] [log] [blame]
//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <regex>
// class match_results<BidirectionalIterator, Allocator>
// difference_type length(size_type sub = 0) 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.length() == m[0].length());
assert(m.length(0) == m[0].length());
assert(m.length(1) == m[1].length());
assert(m.length(2) == m[2].length());
assert(m.length(3) == m[3].length());
assert(m.length(4) == m[4].length());
}
int main()
{
test();
}