| 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 | // UNSUPPORTED: c++03, c++11, c++14 |
| 10 | |
| 11 | // UNSUPPORTED: availability-filesystem-missing |
| 12 | |
| 13 | // <fstream> |
| 14 | |
| 15 | // plate <class charT, class traits = char_traits<charT> > |
| 16 | // class basic_fstream |
| 17 | |
| 18 | // void open(const filesystem::path& s, ios_base::openmode mode = ios_base::in|ios_base::out); |
| 19 | |
| 20 | #include <fstream> |
| 21 | #include <filesystem> |
| 22 | #include <cassert> |
| 23 | #include "test_macros.h" |
| 24 | #include "platform_support.h" |
| 25 | |
| 26 | int main(int, char**) { |
| 27 | std::filesystem::path p = get_temp_file_name(); |
| 28 | { |
| 29 | std::fstream stream; |
| 30 | assert(!stream.is_open()); |
| 31 | stream.open(s: p, |
| 32 | mode: std::ios_base::in | std::ios_base::out | std::ios_base::trunc); |
| 33 | assert(stream.is_open()); |
| 34 | double x = 0; |
| 35 | stream << 3.25; |
| 36 | stream.seekg(0); |
| 37 | stream >> x; |
| 38 | assert(x == 3.25); |
| 39 | } |
| 40 | std::remove(filename: p.string().c_str()); |
| 41 | |
| 42 | #ifndef TEST_HAS_NO_WIDE_CHARACTERS |
| 43 | { |
| 44 | std::wfstream stream; |
| 45 | assert(!stream.is_open()); |
| 46 | stream.open(s: p, |
| 47 | mode: std::ios_base::in | std::ios_base::out | std::ios_base::trunc); |
| 48 | assert(stream.is_open()); |
| 49 | double x = 0; |
| 50 | stream << 3.25; |
| 51 | stream.seekg(0); |
| 52 | stream >> x; |
| 53 | assert(x == 3.25); |
| 54 | } |
| 55 | std::remove(filename: p.string().c_str()); |
| 56 | #endif |
| 57 | |
| 58 | return 0; |
| 59 | } |
| 60 |