copying file using fstream

[rajhansk]

I know that this code is available on reference programs on this site, I am posting this program to know meaning from line 10 to 18.

what is inbuf,outbuf,sbumpc ??
can anybody explain this a little more ?

  // copy a file using file stream buffers
#include <fstream>      // std::filebuf, std::fstream
#include <cstdio>       // EOF

int main () {
  std::fstream src,dest;
  src.open ("test.txt");
  dest.open ("copy.txt");

  std::filebuf* inbuf  = src.rdbuf();
  std::filebuf* outbuf = dest.rdbuf();

  char c = inbuf->sbumpc();
  while (c != EOF)
  {
    outbuf->sputc (c);
    c = inbuf->sbumpc();
  }

  dest.close();
  src.close();

  return 0;
}

[coder777]

I would think there are pretty good explanation with examples:

http://www.cplusplus.com/reference/fstream/filebuf/?kw=filebuf
http://www.cplusplus.com/reference/streambuf/streambuf/sbumpc/

inbuf,outbuf are classes of type filebuf which have the member like sbumpc() and sputc(). For more info click the links above.