51 lines · cpp
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-exception6//7//===----------------------------------------------------------------------===//8 9// FILE_DEPENDENCIES: test.dat, test2.dat10 11// <fstream>12 13// template <class charT, class traits = char_traits<charT> >14// class basic_ifstream15 16// template <class charT, class traits>17// void swap(basic_ifstream<charT, traits>& x, basic_ifstream<charT, traits>& y);18 19#include <fstream>20#include <cassert>21 22#include "test_macros.h"23 24int main(int, char**)25{26 {27 std::ifstream fs1("test.dat");28 std::ifstream fs2("test2.dat");29 swap(fs1, fs2);30 double x = 0;31 fs1 >> x;32 assert(x == 4.5);33 fs2 >> x;34 assert(x == 3.25);35 }36#ifndef TEST_HAS_NO_WIDE_CHARACTERS37 {38 std::wifstream fs1("test.dat");39 std::wifstream fs2("test2.dat");40 swap(fs1, fs2);41 double x = 0;42 fs1 >> x;43 assert(x == 4.5);44 fs2 >> x;45 assert(x == 3.25);46 }47#endif48 49 return 0;50}51