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_fstream 14 15 // explicit basic_fstream(const char* s, ios_base::openmode mode = ios_base::in | ios_base::out); 16 17 #include <fstream> 18 #include <cassert> 19 #include "platform_support.h" 20 21 int main() 22 { 23 std::string temp = get_temp_file_name(); 24 { 25 std::fstream fs(temp.c_str(), std::ios_base::in | std::ios_base::out 26 | std::ios_base::trunc); 27 double x = 0; 28 fs << 3.25; 29 fs.seekg(0); 30 fs >> x; 31 assert(x == 3.25); 32 } 33 std::remove(temp.c_str()); 34 { 35 std::wfstream fs(temp.c_str(), std::ios_base::in | std::ios_base::out 36 | std::ios_base::trunc); 37 double x = 0; 38 fs << 3.25; 39 fs.seekg(0); 40 fs >> x; 41 assert(x == 3.25); 42 } 43 std::remove(temp.c_str()); 44 } 45
