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Verse using statement |
using { /Verse.org/Verse } |
operator'?'(Value:logic)<decides>:logic
Parameters
operator'?' takes the following parameters:
| Name | Type | Description |
|---|---|---|
Value |
logic |
Attributes, Specifiers, and Effects
Specifiers
The following specifiers determine how you can interact with operator'?' in your programs. For the complete list of specifiers, see the Specifiers Page.
Effects
The following effects determine how operator'?' behaves in your programs. For the complete list of effects, see the Effect Specifers section of the Specifiers Page.
| Effect | Meaning |
|---|---|
decides |
Indicates that the function can fail, and that calling this function is a failable expression. Function definitions with the decides effect must also have the transacts effect, which means the actions performed by this function can be rolled back (as if the actions were never performed), if there's a failure anywhere in the function. |