c-ptr
Factor handbook » C library interface » Passing data between Factor and C » Passing pointers to C functions

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>c-ptr ( obj -- c-ptr )

Vocabulary
alien

Class description
Class of objects consisting of aliens, byte arrays and f. These objects all can be used as values of pointer C types.

Definition

USING: byte-arrays ;

IN: alien

UNION: c-ptr alien POSTPONE: f byte-array ;

Methods

USING: alien ;

M: c-ptr >c-ptr ; inline


USING: alien alien.strings io io.encodings io.streams.memory
kernel ;

M: c-ptr alien>string
    [ <memory-stream> ] [ <decoder> ] bi*
    "\0" swap stream-read-until drop ;


USING: alien alien.strings kernel ;

M: c-ptr string>alien drop ;