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_ofstream 14 15 // template <class charT, class traits> 16 // void swap(basic_ofstream<charT, traits>& x, basic_ofstream<charT, traits>& y); 17 18 #include <fstream> 19 #include <cassert> 20 #include "platform_support.h" 21 22 int main() 23 { 24 std::string temp1 = get_temp_file_name(); 25 std::string temp2 = get_temp_file_name(); 26 { 27 std::ofstream fs1(temp1.c_str()); 28 std::ofstream fs2(temp2.c_str()); 29 fs1 << 3.25; 30 fs2 << 4.5; 31 swap(fs1, fs2); 32 fs1 << ' ' << 3.25; 33 fs2 << ' ' << 4.5; 34 } 35 { 36 std::ifstream fs(temp1.c_str()); 37 double x = 0; 38 fs >> x; 39 assert(x == 3.25); 40 fs >> x; 41 assert(x == 4.5); 42 } 43 std::remove(temp1.c_str()); 44 { 45 std::ifstream fs(temp2.c_str()); 46 double x = 0; 47 fs >> x; 48 assert(x == 4.5); 49 fs >> x; 50 assert(x == 3.25); 51 } 52 std::remove(temp2.c_str()); 53 { 54 std::wofstream fs1(temp1.c_str()); 55 std::wofstream fs2(temp2.c_str()); 56 fs1 << 3.25; 57 fs2 << 4.5; 58 swap(fs1, fs2); 59 fs1 << ' ' << 3.25; 60 fs2 << ' ' << 4.5; 61 } 62 { 63 std::wifstream fs(temp1.c_str()); 64 double x = 0; 65 fs >> x; 66 assert(x == 3.25); 67 fs >> x; 68 assert(x == 4.5); 69 } 70 std::remove(temp1.c_str()); 71 { 72 std::wifstream fs(temp2.c_str()); 73 double x = 0; 74 fs >> x; 75 assert(x == 4.5); 76 fs >> x; 77 assert(x == 3.25); 78 } 79 std::remove(temp2.c_str()); 80 } 81
