39 lines · cpp
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-exception6//7//===----------------------------------------------------------------------===//8 9// <ios>10 11// template <class charT, class traits> class basic_ios12 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