Write position controls

Three types of controls can be used to determine where writing is done in the file.  The symbol @ controls the column number while / skips to a new line and # goes to a specified line number.  The file putex1.gms illustrates the use of @ and /

put 'Run on ' system.date '  using source file  ' system.ifile ///;

loop(Destinaton,

  put 'Report for ' , Destinaton.tl:15

  put @40 '------------  Scenario  ------------' /;

  put @41;

  loop(scenarios,put scenarios.tl:10);

  put /;

  loop(source$sum(scenarios,

        abs(savtransport(Source,Destinaton,scenarios))),

     put 'Incoming From ' source.tl @35;

     loop(scenarios,

       put savtransport(Source,Destinaton,scenarios):10:0);

     put /;

      );

  put 'Quantity demanded ' @35

Notes on each follow.

Skip to a specified column: @

Skip to a new line: /

Skip to a specified row: #