//===----------------------------------------------------------------------===// // // 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_ofstream // void open(const filesystem::path& s, ios_base::openmode mode = ios_base::out); #include <fstream> #include <filesystem> #include <cassert> #include "platform_support.h" namespace fs = std::filesystem; int main() { fs::path p = get_temp_file_name(); { std::ofstream fs; assert(!fs.is_open()); char c = 'a'; fs << c; assert(fs.fail()); fs.open(p); assert(fs.is_open()); fs << c; } { std::ifstream fs(p.c_str()); char c = 0; fs >> c; assert(c == 'a'); } std::remove(p.c_str()); { std::wofstream fs; assert(!fs.is_open()); wchar_t c = L'a'; fs << c; assert(fs.fail()); fs.open(p); assert(fs.is_open()); fs << c; } { std::wifstream fs(p.c_str()); wchar_t c = 0; fs >> c; assert(c == L'a'); } std::remove(p.c_str()); }