libcxx/test/std/input.output/iostream.format/output.streams/ostream.cons/move.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 // basic_ostream(basic_ostream&& rhs);
  15
  16 #include <ostream>
  17 #include <cassert>
  18
  19 #include "test_macros.h"
  20
  21
  22 template <class CharT>
  23 struct testbuf
  24     : public std::basic_streambuf<CharT>
  25 {
  26     testbuf() {}
  27 };
  28
  29 template <class CharT>
  30 struct test_ostream
  31     : public std::basic_ostream<CharT>
  32 {
  33     typedef std::basic_ostream<CharT> base;
  34     test_ostream(testbuf<CharT>* sb) : base(sb) {}
  35
  36     test_ostream(test_ostream&& s)
  37         : base(std::move(s)) {}
  38 };
  39
  40
  41 int main(int, char**)
  42 {
  43     {
  44         testbuf<char> sb;
  45         test_ostream<char> os1(&sb);
  46         test_ostream<char> os(std::move(os1));
  47         assert(os1.rdbuf() == &sb);
  48         assert(os.rdbuf() == 0);
  49         assert(os.tie() == 0);
  50         assert(os.fill() == ' ');
  51         assert(os.rdstate() == os.goodbit);
  52         assert(os.exceptions() == os.goodbit);
  53         assert(os.flags() == (os.skipws | os.dec));
  54         assert(os.precision() == 6);
  55         assert(os.getloc().name() == "C");
  56     }
  57 #ifndef TEST_HAS_NO_WIDE_CHARACTERS
  58     {
  59         testbuf<wchar_t> sb;
  60         test_ostream<wchar_t> os1(&sb);
  61         test_ostream<wchar_t> os(std::move(os1));
  62         assert(os1.rdbuf() == &sb);
  63         assert(os.rdbuf() == 0);
  64         assert(os.tie() == 0);
  65         assert(os.fill() == L' ');
  66         assert(os.rdstate() == os.goodbit);
  67         assert(os.exceptions() == os.goodbit);
  68         assert(os.flags() == (os.skipws | os.dec));
  69         assert(os.precision() == 6);
  70         assert(os.getloc().name() == "C");
  71     }
  72 #endif
  73
  74   return 0;
  75 }