| //===----------------------------------------------------------------------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is dual licensed under the MIT and the University of Illinois Open |
| // Source Licenses. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // <fstream> |
| |
| // template <class charT, class traits = char_traits<charT> > |
| // class basic_ofstream |
| |
| // void swap(basic_ofstream& rhs); |
| |
| #include <fstream> |
| #include <cassert> |
| |
| int main() |
| { |
| { |
| std::ofstream fs1("test1.dat"); |
| std::ofstream fs2("test2.dat"); |
| fs1 << 3.25; |
| fs2 << 4.5; |
| fs1.swap(fs2); |
| fs1 << ' ' << 3.25; |
| fs2 << ' ' << 4.5; |
| } |
| { |
| std::ifstream fs("test1.dat"); |
| double x = 0; |
| fs >> x; |
| assert(x == 3.25); |
| fs >> x; |
| assert(x == 4.5); |
| } |
| remove("test1.dat"); |
| { |
| std::ifstream fs("test2.dat"); |
| double x = 0; |
| fs >> x; |
| assert(x == 4.5); |
| fs >> x; |
| assert(x == 3.25); |
| } |
| remove("test2.dat"); |
| { |
| std::wofstream fs1("test1.dat"); |
| std::wofstream fs2("test2.dat"); |
| fs1 << 3.25; |
| fs2 << 4.5; |
| fs1.swap(fs2); |
| fs1 << ' ' << 3.25; |
| fs2 << ' ' << 4.5; |
| } |
| { |
| std::wifstream fs("test1.dat"); |
| double x = 0; |
| fs >> x; |
| assert(x == 3.25); |
| fs >> x; |
| assert(x == 4.5); |
| } |
| remove("test1.dat"); |
| { |
| std::wifstream fs("test2.dat"); |
| double x = 0; |
| fs >> x; |
| assert(x == 4.5); |
| fs >> x; |
| assert(x == 3.25); |
| } |
| remove("test2.dat"); |
| } |