b64f8b07c1
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@119395 91177308-0d34-0410-b5e6-96231b3b80d8
44 lines
1.1 KiB
C++
44 lines
1.1 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// <fstream>
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// template <class charT, class traits = char_traits<charT> >
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// class basic_ifstream
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// template <class charT, class traits>
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// void swap(basic_ifstream<charT, traits>& x, basic_ifstream<charT, traits>& y);
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#include <fstream>
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#include <cassert>
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int main()
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{
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{
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std::ifstream fs1("test.dat");
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std::ifstream fs2("test2.dat");
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swap(fs1, fs2);
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double x = 0;
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fs1 >> x;
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assert(x == 4.5);
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fs2 >> x;
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assert(x == 3.25);
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}
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{
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std::wifstream fs1("test.dat");
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std::wifstream fs2("test2.dat");
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swap(fs1, fs2);
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double x = 0;
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fs1 >> x;
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assert(x == 4.5);
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fs2 >> x;
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assert(x == 3.25);
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}
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}
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