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 // <fstream>
10 
11 // template <class charT, class traits = char_traits<charT> >
12 // class basic_ifstream
13 
14 // explicit basic_ifstream(const char* s, ios_base::openmode mode = ios_base::in);
15 
16 #include <fstream>
17 #include <cassert>
18 
19 int main(int, char**)
20 {
21     {
22         std::ifstream fs("test.dat");
23         double x = 0;
24         fs >> x;
25         assert(x == 3.25);
26     }
27     // std::ifstream(const char*, std::ios_base::openmode) is tested in
28     // test/std/input.output/file.streams/fstreams/ofstream.cons/pointer.pass.cpp
29     // which creates writable files.
30     {
31         std::wifstream fs("test.dat");
32         double x = 0;
33         fs >> x;
34         assert(x == 3.25);
35     }
36     // std::wifstream(const char*, std::ios_base::openmode) is tested in
37     // test/std/input.output/file.streams/fstreams/ofstream.cons/pointer.pass.cpp
38     // which creates writable files.
39 
40   return 0;
41 }
42