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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 // <fstream>
     11 
     12 // template <class charT, class traits = char_traits<charT> >
     13 // class basic_fstream
     14 
     15 // basic_fstream& operator=(basic_fstream&& rhs);
     16 
     17 #include <fstream>
     18 #include <cassert>
     19 #include "platform_support.h"
     20 
     21 int main()
     22 {
     23 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
     24     std::string temp = get_temp_file_name();
     25     {
     26         std::fstream fso(temp.c_str(), std::ios_base::in | std::ios_base::out
     27                                                  | std::ios_base::trunc);
     28         std::fstream fs;
     29         fs = move(fso);
     30         double x = 0;
     31         fs << 3.25;
     32         fs.seekg(0);
     33         fs >> x;
     34         assert(x == 3.25);
     35     }
     36     std::remove(temp.c_str());
     37     {
     38         std::wfstream fso(temp.c_str(), std::ios_base::in | std::ios_base::out
     39                                                   | std::ios_base::trunc);
     40         std::wfstream fs;
     41         fs = move(fso);
     42         double x = 0;
     43         fs << 3.25;
     44         fs.seekg(0);
     45         fs >> x;
     46         assert(x == 3.25);
     47     }
     48     std::remove(temp.c_str());
     49 #endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
     50 }
     51