expired? ( c-ptr -- ? )
Factor handbook » C library interface » Passing data between Factor and C » Passing pointers to C functions » Alien addresses » Alien expiry


Vocabulary
alien

Inputs
c-ptra c-ptr


Outputs
?a boolean


Word description
Tests if the alien is a relic from an earlier session. A byte array is never considered to have expired, whereas passing f always yields true.

Definition
IN: alien

GENERIC: expired? ( c-ptr -- ? ) flushable


Methods
USING: accessors alien ;

M: alien expired? expired>> ;


USING: alien kernel ;

M: f expired? drop t ;