| | | atomic-decf | |
|
| place [delta-form] => new-place-value | [Macro] |
Purpose
Decrement the value stored in place as an
atomic operation.
Package :portable-threads
Module :portable-threads
Arguments and values
| place | A form which is suitable for use as a generalized reference | |
| delta-form | A form that is evaluated to produce a delta value (default is 1). | |
| new-place-value | A number |
Returns
The new value of place.
See also
as-atomic-operation
atomic-delete
atomic-flush
atomic-incf
atomic-pop
atomic-pushnew
Examples
> x 5 > (atomic-decf x) 4 > (atomic-decf x 1.5) 2.5 >
The GBBopen Project
| | | atomic-decf | |