02/23/84  cancel_cobol_program, ccp

Syntax:  ccp names {-control_arg}


Function: cancels one or more programs in the current COBOL run unit.


Arguments:
names
   are reference names of COBOL programs active in the current run
   unit.


Control arguments:
-retain_data, -retd
   leaves the data segment associated with the program intact for
   debugging purposes (see "Notes").


Notes: The results of this command and the execution of the CANCEL
statement from within a COBOL program are similar.  The only
difference is that if a name argument is not actually a component of
the current run unit, an error message is issued and no action is
taken; for the CANCEL statement no warning is given in such a case.

To preserve program data for debugging purposes, -retain_data should
be used.  The data associated with the canceled program is in its last
used state; it is not restored to its initial state until the next
time the program is invoked in the run unit.


Canceling ensures that the next time the program is invoked within the
run unit its data is in its initial state.  Any files that have been
opened by the program and are still open are closed, and the COBOL data
segment is truncated.

Refer to display_cobol_run_unit (dcr), stop_cobol_run (scr), and
run_cobol for more information.


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Historical Background

This edition of the Multics software materials and documentation is provided and donated
to Massachusetts Institute of Technology by Group BULL including BULL HN Information Systems Inc. 
as a contribution to computer science knowledge.  
This donation is made also to give evidence of the common contributions of Massachusetts Institute of Technology,
Bell Laboratories, General Electric, Honeywell Information Systems Inc., Honeywell BULL Inc., Groupe BULL
and BULL HN Information Systems Inc. to the development of this operating system. 
Multics development was initiated by Massachusetts Institute of Technology Project MAC (1963-1970),
renamed the MIT Laboratory for Computer Science and Artificial Intelligence in the mid 1970s, under the leadership
of Professor Fernando Jose Corbato. Users consider that Multics provided the best software architecture 
for managing computer hardware properly and for executing programs. Many subsequent operating systems 
incorporated Multics principles.
Multics was distributed in 1975 to 2000 by Group Bull in Europe , and in the U.S. by Bull HN Information Systems Inc., 
as successor in interest by change in name only to Honeywell Bull Inc. and Honeywell Information Systems Inc. .

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Permission to use, copy, modify, and distribute these programs and their documentation for any purpose and without
fee is hereby granted,provided that the below copyright notice and historical background appear in all copies
and that both the copyright notice and historical background and this permission notice appear in supporting
documentation, and that the names of MIT, HIS, BULL or BULL HN not be used in advertising or publicity pertaining
to distribution of the programs without specific prior written permission.
    Copyright 1972 by Massachusetts Institute of Technology and Honeywell Information Systems Inc.
    Copyright 2006 by BULL HN Information Systems Inc.
    Copyright 2006 by Bull SAS
    All Rights Reserved