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_ifstream 14 15 // explicit basic_ifstream(const string& s, ios_base::openmode mode = ios_base::in); 16 17 #include <fstream> 18 #include <cassert> 19 main()20int main() 21 { 22 { 23 std::ifstream fs(std::string("test.dat")); 24 double x = 0; 25 fs >> x; 26 assert(x == 3.25); 27 } 28 // std::ifstream(const std::string&, std::ios_base::openmode) is tested in 29 // test/std/input.output/file.streams/fstreams/ofstream.cons/string.pass.cpp 30 // which creates writable files. 31 { 32 std::wifstream fs(std::string("test.dat")); 33 double x = 0; 34 fs >> x; 35 assert(x == 3.25); 36 } 37 // std::wifstream(const std::string&, std::ios_base::openmode) is tested in 38 // test/std/input.output/file.streams/fstreams/ofstream.cons/string.pass.cpp 39 // which creates writable files. 40 } 41