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// <ios>
10
11// template <class charT, class traits> class basic_ios
12
13// bool good() const;
14
15#include <ios>
16#include <streambuf>
17#include <cassert>
18
19#include "test_macros.h"
20
21struct testbuf : public std::streambuf {};
22
23int main(int, char**)
24{
25 {
26 std::ios ios(0);
27 assert(!ios.good());
28 }
29 {
30 testbuf sb;
31 std::ios ios(&sb);
32 assert(ios.good());
33 ios.setstate(std::ios::eofbit);
34 assert(!ios.good());
35 }
36
37 return 0;
38}
39

source code of libcxx/test/std/input.output/iostreams.base/ios/iostate.flags/good.pass.cpp