libcxx/test/std/utilities/memory/unique.ptr/unique.ptr.special/io.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 // UNSUPPORTED: c++03
  10 //  Because we don't have a functioning decltype in C++03
  11
  12 // UNSUPPORTED: no-localization
  13
  14 // <memory>
  15
  16 // unique_ptr
  17
  18 // template<class CharT, class Traits, class Y, class D>
  19 //   basic_ostream<CharT, Traits>&
  20 //   operator<<(basic_ostream<CharT, Traits>& os, const unique_ptr<Y, D>& p);
  21
  22 #include <memory>
  23 #include <sstream>
  24 #include <cassert>
  25
  26 #include "test_macros.h"
  27
  28 int main(int, char**)
  29 {
  30     std::unique_ptr<int> p(new int(3));
  31     std::ostringstream os;
  32     assert(os.str().empty());
  33     os << p;
  34     assert(!os.str().empty());
  35
  36   return 0;
  37 }