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 #include "test_macros.h"
20 
main(int,char **)21 int main(int, char**)
22 {
23     {
24         std::streambuf* sb = 0;
25         std::basic_ios<char> ios(sb);
26         assert(ios.rdbuf() == sb);
27         assert(ios.tie() == 0);
28         assert(ios.rdstate() == std::ios::badbit);
29         assert(ios.exceptions() == std::ios::goodbit);
30         assert(ios.flags() == (std::ios::skipws | std::ios::dec));
31         assert(ios.width() == 0);
32         assert(ios.precision() == 6);
33         assert(ios.fill() == ' ');
34         assert(ios.getloc() == std::locale());
35     }
36     {
37         std::streambuf* sb = (std::streambuf*)1;
38         std::basic_ios<char> ios(sb);
39         assert(ios.rdbuf() == sb);
40         assert(ios.tie() == 0);
41         assert(ios.rdstate() == std::ios::goodbit);
42         assert(ios.exceptions() == std::ios::goodbit);
43         assert(ios.flags() == (std::ios::skipws | std::ios::dec));
44         assert(ios.width() == 0);
45         assert(ios.precision() == 6);
46         assert(ios.fill() == ' ');
47         assert(ios.getloc() == std::locale());
48     }
49 
50   return 0;
51 }
52