1//===----------------------------------------------------------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9// <regex>
10
11// class match_results<BidirectionalIterator, Allocator>
12
13// size_type size() const;
14// bool empty() const;
15
16#include <regex>
17#include <cassert>
18#include "test_macros.h"
19
20template <class CharT>
21void
22test()
23{
24 std::match_results<const CharT*> m;
25 assert(m.empty());
26 assert(m.size() == 0);
27 const char s[] = "abcdefghijk";
28 assert(std::regex_search(s, m, std::regex("cd((e)fg)hi")));
29 assert(!m.empty());
30 assert(m.size() == 3);
31}
32
33int main(int, char**)
34{
35 test<char>();
36
37 return 0;
38}
39

source code of libcxx/test/std/re/re.results/re.results.size/empty.pass.cpp