| //===----------------------------------------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // <iterator> |
| |
| // class ostreambuf_iterator |
| |
| // bool failed() const throw(); |
| |
| #include <iterator> |
| #include <sstream> |
| #include <cassert> |
| |
| #include "test_macros.h" |
| |
| template <typename Char, typename Traits = std::char_traits<Char> > |
| struct my_streambuf : public std::basic_streambuf<Char,Traits> { |
| typedef typename std::basic_streambuf<Char,Traits>::int_type int_type; |
| typedef typename std::basic_streambuf<Char,Traits>::char_type char_type; |
| |
| my_streambuf() {} |
| int_type sputc(char_type) { return Traits::eof(); } |
| }; |
| |
| int main(int, char**) |
| { |
| { |
| my_streambuf<char> buf; |
| std::ostreambuf_iterator<char> i(&buf); |
| i = 'a'; |
| assert(i.failed()); |
| } |
| { |
| my_streambuf<wchar_t> buf; |
| std::ostreambuf_iterator<wchar_t> i(&buf); |
| i = L'a'; |
| assert(i.failed()); |
| } |
| |
| return 0; |
| } |