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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_ifstream
     14 
     15 // explicit basic_ifstream(const char* s, ios_base::openmode mode = ios_base::in);
     16 
     17 #include <fstream>
     18 #include <cassert>
     19 
     20 int main()
     21 {
     22     {
     23         std::ifstream fs("test.dat");
     24         double x = 0;
     25         fs >> x;
     26         assert(x == 3.25);
     27     }
     28     // std::ifstream(const char*, std::ios_base::openmode) is tested in
     29     // test/std/input.output/file.streams/fstreams/ofstream.cons/pointer.pass.cpp
     30     // which creates writable files.
     31     {
     32         std::wifstream fs("test.dat");
     33         double x = 0;
     34         fs >> x;
     35         assert(x == 3.25);
     36     }
     37     // std::wifstream(const char*, std::ios_base::openmode) is tested in
     38     // test/std/input.output/file.streams/fstreams/ofstream.cons/pointer.pass.cpp
     39     // which creates writable files.
     40 }
     41