| //===----------------------------------------------------------------------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is dual licensed under the MIT and the University of Illinois Open |
| // Source Licenses. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // UNSUPPORTED: c++98, c++03, c++11, c++14 |
| |
| // <fstream> |
| |
| // plate <class charT, class traits = char_traits<charT> > |
| // class basic_fstream |
| |
| // void open(const filesystem::path& s, ios_base::openmode mode = ios_base::in|ios_base::out); |
| |
| #include <fstream> |
| #include <filesystem> |
| #include <cassert> |
| #include "platform_support.h" |
| |
| int main() { |
| std::filesystem::path p = get_temp_file_name(); |
| { |
| std::fstream stream; |
| assert(!stream.is_open()); |
| stream.open(p, |
| std::ios_base::in | std::ios_base::out | std::ios_base::trunc); |
| assert(stream.is_open()); |
| double x = 0; |
| stream << 3.25; |
| stream.seekg(0); |
| stream >> x; |
| assert(x == 3.25); |
| } |
| std::remove(p.c_str()); |
| { |
| std::wfstream stream; |
| assert(!stream.is_open()); |
| stream.open(p, |
| std::ios_base::in | std::ios_base::out | std::ios_base::trunc); |
| assert(stream.is_open()); |
| double x = 0; |
| stream << 3.25; |
| stream.seekg(0); |
| stream >> x; |
| assert(x == 3.25); |
| } |
| std::remove(p.c_str()); |
| } |