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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 // UNSUPPORTED: c++98, c++03
     11 
     12 // <sstream>
     13 
     14 // template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> >
     15 // class basic_ostringstream
     16 
     17 // basic_ostringstream& operator=(basic_ostringstream&& rhs);
     18 
     19 #include <sstream>
     20 #include <cassert>
     21 
     22 int main()
     23 {
     24     {
     25         std::ostringstream ss0(" 123 456");
     26         std::ostringstream ss;
     27         ss = std::move(ss0);
     28         assert(ss.rdbuf() != 0);
     29         assert(ss.good());
     30         assert(ss.str() == " 123 456");
     31         int i = 234;
     32         ss << i << ' ' << 567;
     33         assert(ss.str() == "234 5676");
     34     }
     35     {
     36         std::wostringstream ss0(L" 123 456");
     37         std::wostringstream ss;
     38         ss = std::move(ss0);
     39         assert(ss.rdbuf() != 0);
     40         assert(ss.good());
     41         assert(ss.str() == L" 123 456");
     42         int i = 234;
     43         ss << i << ' ' << 567;
     44         assert(ss.str() == L"234 5676");
     45     }
     46 }
     47