Copy data from fstream to stringstream with no buffer?

Question

Is there anyway I can transfer data from an fstream (a file) to a stringstream (a stream in the memory)?

Currently, I\'m using a buffer, but th

Answer 1

// need to include  and , and of course  and 
ifstream fin("input.txt");
ostringstream sout;
copy(istreambuf_iterator(fin),
     istreambuf_iterator(),
     ostreambuf_iterator(sout));