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 // <fstream>
10 
11 // template <class charT, class traits = char_traits<charT> >
12 // class basic_filebuf
13 
14 // basic_filebuf();
15 
16 #include <fstream>
17 #include <cassert>
18 
19 int main(int, char**)
20 {
21     {
22         std::filebuf f;
23         assert(!f.is_open());
24     }
25     {
26         std::wfilebuf f;
27         assert(!f.is_open());
28     }
29 
30   return 0;
31 }
32