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libcxx/test/std/re/re.results/re.results.swap/non_member_swap.pass.cpp

43 lines
1.1 KiB
C++

//===----------------------------------------------------------------------===//
//
// 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>
// template <class BidirectionalIterator, class Allocator>
// void swap(match_results<BidirectionalIterator, Allocator>& m1,
// match_results<BidirectionalIterator, Allocator>& m2);
#include <regex>
#include <cassert>
#include "test_macros.h"
void
test()
{
std::match_results<const char*> m1;
const char s[] = "abcdefghijk";
assert(std::regex_search(s, m1, std::regex("cd((e)fg)hi")));
std::match_results<const char*> m2;
std::match_results<const char*> m1_save = m1;
std::match_results<const char*> m2_save = m2;
swap(m1, m2);
assert(m1 == m2_save);
assert(m2 == m1_save);
}
int main()
{
test();
}