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 // <fstream> 10 11 // template <class charT, class traits = char_traits<charT> > 12 // class basic_fstream 13 14 // explicit basic_fstream(const string& s, ios_base::openmode mode = ios_base::in|ios_base::out); 15 16 // XFAIL: FROZEN-CXX03-HEADERS-FIXME 17 18 #include <fstream> 19 #include <cassert> 20 21 #include "test_macros.h" 22 #include "platform_support.h" 23 #include "operator_hijacker.h" 24 25 int main(int, char**) 26 { 27 std::string temp = get_temp_file_name(); 28 { 29 std::fstream fs(temp, 30 std::ios_base::in | std::ios_base::out 31 | std::ios_base::trunc); 32 double x = 0; 33 fs << 3.25; 34 fs.seekg(0); 35 fs >> x; 36 assert(x == 3.25); 37 } 38 std::remove(temp.c_str()); 39 40 { 41 std::basic_fstream<char, operator_hijacker_char_traits<char> > fs( 42 temp, std::ios_base::in | std::ios_base::out | std::ios_base::trunc); 43 std::basic_string<char, operator_hijacker_char_traits<char> > x; 44 fs << "3.25"; 45 fs.seekg(0); 46 fs >> x; 47 assert(x == "3.25"); 48 } 49 std::remove(temp.c_str()); 50 51 #ifndef TEST_HAS_NO_WIDE_CHARACTERS 52 { 53 std::wfstream fs(temp, 54 std::ios_base::in | std::ios_base::out 55 | std::ios_base::trunc); 56 double x = 0; 57 fs << 3.25; 58 fs.seekg(0); 59 fs >> x; 60 assert(x == 3.25); 61 } 62 std::remove(temp.c_str()); 63 64 { 65 std::basic_fstream<wchar_t, operator_hijacker_char_traits<wchar_t> > fs( 66 temp, std::ios_base::in | std::ios_base::out | std::ios_base::trunc); 67 std::basic_string<wchar_t, operator_hijacker_char_traits<wchar_t> > x; 68 fs << L"3.25"; 69 fs.seekg(0); 70 fs >> x; 71 assert(x == L"3.25"); 72 } 73 std::remove(temp.c_str()); 74 #endif 75 76 return 0; 77 } 78