1 //===----------------------------------------------------------------------===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is dual licensed under the MIT and the University of Illinois Open
6 // Source Licenses. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 
10 // <iomanip>
11 
12 // T1 resetiosflags(ios_base::fmtflags mask);
13 
14 #include <iomanip>
15 #include <istream>
16 #include <ostream>
17 #include <cassert>
18 
19 template <class CharT>
20 struct testbuf
21     : public std::basic_streambuf<CharT>
22 {
testbuftestbuf23     testbuf() {}
24 };
25 
main()26 int main()
27 {
28     {
29         testbuf<char> sb;
30         std::istream is(&sb);
31         assert(is.flags() & std::ios_base::skipws);
32         is >> std::resetiosflags(std::ios_base::skipws);
33         assert(!(is.flags() & std::ios_base::skipws));
34     }
35     {
36         testbuf<char> sb;
37         std::ostream os(&sb);
38         assert(os.flags() & std::ios_base::skipws);
39         os << std::resetiosflags(std::ios_base::skipws);
40         assert(!(os.flags() & std::ios_base::skipws));
41     }
42     {
43         testbuf<wchar_t> sb;
44         std::wistream is(&sb);
45         assert(is.flags() & std::ios_base::skipws);
46         is >> std::resetiosflags(std::ios_base::skipws);
47         assert(!(is.flags() & std::ios_base::skipws));
48     }
49     {
50         testbuf<wchar_t> sb;
51         std::wostream os(&sb);
52         assert(os.flags() & std::ios_base::skipws);
53         os << std::resetiosflags(std::ios_base::skipws);
54         assert(!(os.flags() & std::ios_base::skipws));
55     }
56 }
57