How to construct a c++ fstream from a POSIX file descriptor?

Question

I\'m basically looking for a C++ version of fdopen(). I did a bit of research on this and it is one of those things that seems like it should be easy, but turns out to be v

Answer 1

There's a good chance your compiler offers a FILE-based fstream constructor, even though it's non-standard. For example:

FILE* f = fdopen(my_fd, "a");
std::fstream fstr(f);
fstr << "Greetings\n";

But as far as I know, there's no portable way to do this.