Remote Processing CAMBASIC - Manual (Page 77)

Comm ands - 44
ERR
System Variable
SYNTAX: n = ERR
PURPOSE: To return the error code associated with an error.
REMARK S: The function returns the error code for the last error. It is usually used in conjunction with the ERL
function.
Error trapping is essential in control applications, where a halt in execution is not tolerable.
See the Err or M essages Chapter for a list of error codes and messag es.
RELATED: ERL, ON ER R, R ESUM E, ERR statement
EXAMPLE: 10 ON ERR GOTO 50 : ’enable error trapping
20 INPUT"Enter a number to divide by. (0 will cause error) : ",A
30 B=10 / A
40 GOTO 20
50 PRINT"Error#" ; ERR ; "occurred on line#";ERL
60 ON ERR GOTO 50 : ’re-enable error trapping
70 RESUME NEXT : ‘resume at next statement after error
ERROR: none