Category Error Handling Functions

Home › All Categories › Error Handling Functions

Error Handling Functions

Grouped by task. Errors and missing values lists them beside the rest of the area.

Catch runtime errors in a handler

Function	What it does	From
On Error	Sets a label to jump to when a runtime error happens; On Error Goto 0 turns it off.	built-in
Local	Marks an On Error handler as belonging to the procedure it is set in.	built-in

Find out what went wrong

Function	What it does	From
Err	Returns the number of the last runtime error, or sets it without jumping.	built-in
Erl	Returns the source line of the last runtime error, or 0 if there was none.	built-in
Erfn	Returns a pointer to the name of the failing procedure; null unless built with -exx.	built-in
Ermn	Returns a pointer to the name of the source file where the last error happened.	built-in

Raise an error yourself

Function	What it does	From
Error	Raises a runtime error by number: jumps to the handler, or ends the program.	built-in

Also in this category

• Error Handling Functions

---

Home · Keyword Index