C# equivalent of C++ ostream::tellp for size limit on diskette

Question

Is there a C# equivalent for StreamWriter of the C++ ostream::tellp? I am porting over some old C++ code to C#, but the client still wants to keep using diskettes (read: old equipment), so I need to find a way to find the file pointer position or to find how much I've written to disk already.

Below is the method that I've created so far:

 private bool isDisketteBoundary(ref StreamWriter swOutput, int nCurrentDisketteNo) {
      // Get current file pointer position
      // long filePosition = nOStream.tellp(); <-- C++ code
      long filePosition = 0; // <-- needs to change to find file pointer position

      // Valid?
      if(filePosition != -1) {
           // Is the new size over a boundary?
           float numDiskettes = (float)((float)filePosition / (float)Constants.DisketteSize);
           int disketteCount = Convert.ToInt32(Math.Ceiling(numDiskettes));

           // Is the diskette count larger than the current index?
           return (nCurrentDisketteNo < disketteCount) ? true : false;
      }
      else {
           throw new Exception("Unable to get file pointer from StreamWriter");
      }
 }

Answer 1

I think you are looking for

swOutput.BaseStream.Position

see MSDN: http://msdn.microsoft.com/en-us/library/system.io.stream.position.aspx .