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-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 // FILE_DEPENDENCIES: test.dat 10 11 // <fstream> 12 13 // template <class charT, class traits = char_traits<charT> > 14 // class basic_ifstream 15 16 // explicit basic_ifstream(const char* s, ios_base::openmode mode = ios_base::in); 17 18 #include <fstream> 19 #include <cassert> 20 21 #include "test_macros.h" 22 main(int,char **)23int main(int, char**) 24 { 25 { 26 std::ifstream fs("test.dat"); 27 double x = 0; 28 fs >> x; 29 assert(x == 3.25); 30 } 31 // std::ifstream(const char*, std::ios_base::openmode) is tested in 32 // test/std/input.output/file.streams/fstreams/ofstream.cons/pointer.pass.cpp 33 // which creates writable files. 34 { 35 std::wifstream fs("test.dat"); 36 double x = 0; 37 fs >> x; 38 assert(x == 3.25); 39 } 40 // std::wifstream(const char*, std::ios_base::openmode) is tested in 41 // test/std/input.output/file.streams/fstreams/ofstream.cons/pointer.pass.cpp 42 // which creates writable files. 43 44 return 0; 45 } 46