Copyright Digital Equipment Corp. All rights reserved.

FIND

 The FIND procedure positions a file at  a  specified  component.
 The  file  must  be  open  for  direct  access  and must contain
 fixed-length components.

 Syntax:

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


 The 'file_variable' is the name of the file variable  associated
 with a file that is open for direct access.

 The 'component-number' is a  positive  integer  expression  that
 indicates  the  component at which the file is to be positioned.
 If the component number is zero or negative,  a  run-time  error
 occurs.

 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 FIND procedure allows direct access to the components  of  a
 file.   You  can  use  the  FIND  procedure  to  move forward or
 backward in a file.

 After execution of the FIND procedure, the file is positioned at
 the  specified  component.  The file buffer variable assumes the
 value of the component, and the file mode is set to  inspection.
 If   the  file  has  relative  organization,  the  current  file
 component is locked.  If there  is  no  file  component  at  the
 selected  position,  the  file  buffer is undefined (UFB becomes
 TRUE) and the mode becomes undefined.  After any call  to  FIND,
 the value of EOF is undefined.

 You can use the FIND procedure only when reading a file that was
 opened  by the OPEN procedure.  If the file is open because of a
 default open (that is, with EXTEND, RESET, or REWRITE),  a  call
 to  FIND  results in a run-time error because the default access
 method is sequential.

 See the "HP Pascal Language Reference  Manual"  for  a  complete
 description of the FIND procedure.