LOCATE

 The  LOCATE  procedure  positions  a  random-access  file  at  a
 particular  component  so that the next PUT procedure can modify
 that component.

 Syntax:

    LOCATE( file_variable, component-number 
       [[, ERROR := error-recovery]] );


 The 'file_variable' is the name of the file variable  associated
 with the file to be positioned.

 The  'component-number'  is  a   positive   integer   expression
 indicating  the relative component number of the component to be
 found.

 The 'error-recovery' specifies the action  to  be  taken  if  an
 error occurs during execution of the routine.  By default, after
 the first error, the error message is printed and  execution  is
 stopped.

 The file can be in any mode before LOCATE is called.   The  mode
 is set to generation after the procedure's execution.

 The LOCATE procedure positions the file so  that  the  next  PUT
 procedure  writes  the  contents  of  the  file  buffer into the
 selected  component.   After  LOCATE  has  been  performed,  UFB
 returns TRUE and EOF is undefined.

 See the "HP  Pascal  Language  Reference  Manual"  for  complete
 information on the LOCATE procedure.