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 // <iomanip>
10 
11 // T3 setbase(int base);
12 
13 #include <iomanip>
14 #include <istream>
15 #include <ostream>
16 #include <cassert>
17 
18 #include "test_macros.h"
19 
20 template <class CharT>
21 struct testbuf
22     : public std::basic_streambuf<CharT>
23 {
testbuftestbuf24     testbuf() {}
25 };
26 
main(int,char **)27 int main(int, char**)
28 {
29     {
30         testbuf<char> sb;
31         std::istream is(&sb);
32         is >> std::setbase(8);
33         assert((is.flags() & std::ios_base::basefield) == std::ios_base::oct);
34         is >> std::setbase(10);
35         assert((is.flags() & std::ios_base::basefield) == std::ios_base::dec);
36         is >> std::setbase(16);
37         assert((is.flags() & std::ios_base::basefield) == std::ios_base::hex);
38         is >> std::setbase(15);
39         assert((is.flags() & std::ios_base::basefield) == 0);
40     }
41     {
42         testbuf<char> sb;
43         std::ostream os(&sb);
44         os << std::setbase(8);
45         assert((os.flags() & std::ios_base::basefield) == std::ios_base::oct);
46         os << std::setbase(10);
47         assert((os.flags() & std::ios_base::basefield) == std::ios_base::dec);
48         os << std::setbase(16);
49         assert((os.flags() & std::ios_base::basefield) == std::ios_base::hex);
50         os << std::setbase(15);
51         assert((os.flags() & std::ios_base::basefield) == 0);
52     }
53     {
54         testbuf<wchar_t> sb;
55         std::wistream is(&sb);
56         is >> std::setbase(8);
57         assert((is.flags() & std::ios_base::basefield) == std::ios_base::oct);
58         is >> std::setbase(10);
59         assert((is.flags() & std::ios_base::basefield) == std::ios_base::dec);
60         is >> std::setbase(16);
61         assert((is.flags() & std::ios_base::basefield) == std::ios_base::hex);
62         is >> std::setbase(15);
63         assert((is.flags() & std::ios_base::basefield) == 0);
64     }
65     {
66         testbuf<wchar_t> sb;
67         std::wostream os(&sb);
68         os << std::setbase(8);
69         assert((os.flags() & std::ios_base::basefield) == std::ios_base::oct);
70         os << std::setbase(10);
71         assert((os.flags() & std::ios_base::basefield) == std::ios_base::dec);
72         os << std::setbase(16);
73         assert((os.flags() & std::ios_base::basefield) == std::ios_base::hex);
74         os << std::setbase(15);
75         assert((os.flags() & std::ios_base::basefield) == 0);
76     }
77 
78   return 0;
79 }
80