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