libcxx/test/std/input.output/iostream.format/output.streams/ostream.cons/streambuf.pass.cpp

   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 // <ostream>
  10
  11 // template <class charT, class traits = char_traits<charT> >
  12 // class basic_ostream;
  13
  14 // explicit basic_ostream(basic_streambuf<charT,traits>* sb);
  15
  16 #include <ostream>
  17 #include <cassert>
  18
  19 #include "test_macros.h"
  20
  21 template <class CharT>
  22 struct testbuf
  23     : public std::basic_streambuf<CharT>
  24 {
  25     testbuf() {}
  26 };
  27
  28 int main(int, char**)
  29 {
  30     {
  31         testbuf<char> sb;
  32         std::basic_ostream<char> os(&sb);
  33         assert(os.rdbuf() == &sb);
  34         assert(os.tie() == 0);
  35         assert(os.fill() == ' ');
  36         assert(os.rdstate() == os.goodbit);
  37         assert(os.exceptions() == os.goodbit);
  38         assert(os.flags() == (os.skipws | os.dec));
  39         assert(os.precision() == 6);
  40         assert(os.getloc().name() == "C");
  41     }
  42 #ifndef TEST_HAS_NO_WIDE_CHARACTERS
  43     {
  44         testbuf<wchar_t> sb;
  45         std::basic_ostream<wchar_t> os(&sb);
  46         assert(os.rdbuf() == &sb);
  47         assert(os.tie() == 0);
  48         assert(os.fill() == L' ');
  49         assert(os.rdstate() == os.goodbit);
  50         assert(os.exceptions() == os.goodbit);
  51         assert(os.flags() == (os.skipws | os.dec));
  52         assert(os.precision() == 6);
  53         assert(os.getloc().name() == "C");
  54     }
  55 #endif
  56
  57   return 0;
  58 }