From: muta...@gmail.com   
      
   Maybe an extension to C90 could be (with FILE *):   
      
   single = combine_stream(in_stream, out_stream);   
      
   split_stream(single, &in_stream, &out_stream);   
      
   If you have a single stream, you can do both input and   
   output on it so long as you fseek first.   
      
   If you have a dual stream, it will need to have a link to   
   its counterpart so that it knows whether it needs to   
   fseek or not.   
      
   BFN. Paul.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)