error(msg: utf8) → never
Category: [control](builtinscontrol)_
Abort evaluation with an error message.
| Parameter | Type | Description | Remarks |
|---|---|---|---|
| msg | utf8 | The error message to report. | — |
| returns | never | Never returns — aborts evaluation. | — |
wcl
error("unreachable state") // abort evaluation with a message → (aborts)