IB Statements/noexcp

From CometWiki

< IB Statements(Difference between revisions)
Jump to: navigation, search
(explained use of noexcp better)
 
(3 intermediate revisions not shown)
Line 30: Line 30:
For information about handling specific exceptions, see Exception Handling.  
For information about handling specific exceptions, see Exception Handling.  
-
Also see [[IB_Statements/excpsub|ExcpSub]]  
+
Note that the EXCP variable will still contain the last exception encountered, and will not be set to zero. This allows a form of "goto less programming"
 +
 
 +
Also see [[IB_Statements/excpsub|ExcpSub]]
 +
 
 +
'''Example:'''
 +
 +
EXCP=0
  ERASE file$ dir=dir$ NOEXCP
  ERASE file$ dir=dir$ NOEXCP
 +
CREATE file$ dir=dir$ NOEXCP
 +
Close(LUN) & OPEN(LUN)file$ dir=dir$ NOEXCP
 +
if EXCP ne 0 print 'got an error ';EXCP;' creating ';file$
 +
-
See system variables and [[ib_Statements/EXCP|Excp]] for more information.
+
See [[System_Variables|System Variables]] and [[IB_Statements/EXCP|Excp]] for more information.

Latest revision as of 18:07, 4 June 2016

NOEXCP option on file system statements

Parameter: NOEXCP

Discussion: Introduced with Comet32 this parameter may be used in file system statements to specify that if a non-fatal runtime exception occurs it should be ignored.
This option is available for:

ERASE,
ENTER,
EXTRACT,
CREATE,
CREATEKEY,
DELETE,
INPUT,
INPUTFILE,
INQUIRE,
INSERT,
POSITION,
PRINTFILE,
PRINT,
OPEN,
UPDATE,
READ,
RENAME,
REWRITE,
RUN,
LOCK,
UNLOCK,
WRITE.

For information about handling specific exceptions, see Exception Handling.

Note that the EXCP variable will still contain the last exception encountered, and will not be set to zero. This allows a form of "goto less programming"

Also see ExcpSub

Example:

EXCP=0
ERASE file$ dir=dir$ NOEXCP
CREATE file$ dir=dir$ NOEXCP
Close(LUN) & OPEN(LUN)file$ dir=dir$ NOEXCP
if EXCP ne 0 print 'got an error ';EXCP;' creating ';file$


See System Variables and Excp for more information.

Personal tools