- ERROR is always enabled.
- An error message is issued if no ON-unit is active when the ERROR condition arises, or if the ON-unit does not use a GOTO (to exit the block) to recover from the condition.
- Cause and syntax
- The ERROR condition is the implicit action for many conditions.
This provides a common condition that can be used to check for a number
of different conditions, rather than checking each condition separately.
The ERROR condition is raised under the following circumstances:
- As a result of the implicit action for a condition, which is to raise the ERROR condition
- As a result of the normal return action for some conditions, such as SUBSCRIPTRANGE CONVERSION or when no retry is attempted
- As a result of an error (for which there is no other PL/I-defined condition) during program execution
- As a result of a SIGNAL ERROR statement
- Implicit action
- The message is printed and the FINISH condition is raised.
- Normal return
- The implicit action is taken.
- Condition codes
- All codes 1000 and above are ERROR conditions.