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 21 struct testbuf : public std::streambuf {}; 22 main(int,char **)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