cxx/test/re/re.submatch/re.submatch.members/operator_string.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>
// template <class BidirectionalIterator> class sub_match;
// operator string_type() const;
#include <regex>
#include <cassert>
int main()
{
{
typedef char CharT;
typedef std::sub_match<const CharT*> SM;
SM sm = SM();
SM::string_type str = sm;
assert(str.empty());
const CharT s[] = {'1', '2', '3', 0};
sm.first = s;
sm.second = s + 3;
sm.matched = true;
str = sm;
assert(str == std::string("123"));
}
{
typedef wchar_t CharT;
typedef std::sub_match<const CharT*> SM;
SM sm = SM();
SM::string_type str = sm;
assert(str.empty());
const CharT s[] = {'1', '2', '3', 0};
sm.first = s;
sm.second = s + 3;
sm.matched = true;
str = sm;
assert(str == std::wstring(L"123"));
}
}