c++ - Getting a FILE* from a std::fstream - Stack Overflow There is a way to get file descriptor from fstream and then convert it to FILE* (via fdopen) Personally I don't see any need in FILE*, but with file descriptor you may do many interesting things such as redirecting (dup2)
std::basic_fstream - cppreference. com The class template basic_fstream implements high-level input output operations on file based streams It interfaces a file-based streambuffer (std::basic_filebuf) with the high-level interface of (std::basic_iostream)
C++ fstream fstream class - W3Schools Definition and Usage The fstream class (short for "file stream") is used to read and write into files The fstream class is defined in the <fstream> header file To open a file, pass the file path into the constructor:
Obtaining a file descriptor - C++ Forum Josuttis has given an example of creating a user-defined stream buffer that can be initialized with a file descriptor, so as to write to an arbitrary destination, which may be a file, socket, etc
File Handling in C++ - GeeksforGeeks For file operations, C++ provides file stream classes in the <fstream> header such as ofstream, ifstream, fstream Before reading from or writing to a file, we first need to open it Opening a file loads that file in the RAM
std::basic_fstream - cppreference. net implements high-level input output operations on file based streams It interfaces a file-based streambuffer ( std::basic_filebuf ) with the high-level interface of ( std::basic_iostream )
File Based Streams - GCC, the GNU Compiler Collection C++ is no different from C in this respect: I O must be done at the byte level If you're trying to read or write a few bits at a time, you're going about it the wrong way
cpptips. com use fstream::rdbuf() to get the filebuf then filebuf::fd() to get the file descriptor cout << "file descriptor = " << (f rdbuf())->fd() << endl; return 0;