| 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 | // basic_streambuf<charT,traits>* rdbuf(basic_streambuf<charT,traits>* sb); |
| 14 | |
| 15 | #include <ios> |
| 16 | #include <streambuf> |
| 17 | #include <cassert> |
| 18 | |
| 19 | #include "test_macros.h" |
| 20 | |
| 21 | int main(int, char**) |
| 22 | { |
| 23 | std::ios ios(0); |
| 24 | assert(ios.rdbuf() == 0); |
| 25 | assert(!ios.good()); |
| 26 | std::streambuf* sb = (std::streambuf*)1; |
| 27 | std::streambuf* sb2 = ios.rdbuf(sb: sb); |
| 28 | assert(sb2 == 0); |
| 29 | assert(ios.rdbuf() == sb); |
| 30 | assert(ios.good()); |
| 31 | sb2 = ios.rdbuf(sb: 0); |
| 32 | assert(sb2 == (std::streambuf*)1); |
| 33 | assert(ios.rdbuf() == 0); |
| 34 | assert(ios.bad()); |
| 35 | |
| 36 | return 0; |
| 37 | } |
| 38 |