nonmember_swap.pass.cpp revision b64f8b07c104c6cc986570ac8ee0ed16a9f23976 
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// template <class charT, class traits>
16//   void swap(basic_ifstream<charT, traits>& x, basic_ifstream<charT, traits>& y);
17
18#include <fstream>
19#include <cassert>
20
21int main()
22{
23    {
24        std::ifstream fs1("test.dat");
25        std::ifstream fs2("test2.dat");
26        swap(fs1, fs2);
27        double x = 0;
28        fs1 >> x;
29        assert(x == 4.5);
30        fs2 >> x;
31        assert(x == 3.25);
32    }
33    {
34        std::wifstream fs1("test.dat");
35        std::wifstream fs2("test2.dat");
36        swap(fs1, fs2);
37        double x = 0;
38        fs1 >> x;
39        assert(x == 4.5);
40        fs2 >> x;
41        assert(x == 3.25);
42    }
43}
44