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 // explicit basic_ios(basic_streambuf<charT,traits>* sb);
14 
15 #include <ios>
16 #include <streambuf>
17 #include <cassert>
18 
19 int main(int, char**)
20 {
21     {
22         std::streambuf* sb = 0;
23         std::basic_ios<char> ios(sb);
24         assert(ios.rdbuf() == sb);
25         assert(ios.tie() == 0);
26         assert(ios.rdstate() == std::ios::badbit);
27         assert(ios.exceptions() == std::ios::goodbit);
28         assert(ios.flags() == (std::ios::skipws | std::ios::dec));
29         assert(ios.width() == 0);
30         assert(ios.precision() == 6);
31         assert(ios.fill() == ' ');
32         assert(ios.getloc() == std::locale());
33     }
34     {
35         std::streambuf* sb = (std::streambuf*)1;
36         std::basic_ios<char> ios(sb);
37         assert(ios.rdbuf() == sb);
38         assert(ios.tie() == 0);
39         assert(ios.rdstate() == std::ios::goodbit);
40         assert(ios.exceptions() == std::ios::goodbit);
41         assert(ios.flags() == (std::ios::skipws | std::ios::dec));
42         assert(ios.width() == 0);
43         assert(ios.precision() == 6);
44         assert(ios.fill() == ' ');
45         assert(ios.getloc() == std::locale());
46     }
47 
48   return 0;
49 }
50