factor/basis/io/streams/byte-array/fast/fast.factor

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531 B
Factor

! Copyright (C) 2010 Slava Pestov.
! See http://factorcode.org/license.txt for BSD license.
USING: alien byte-vectors io kernel libc math sequences ;
IN: io.streams.byte-array.fast
! This is split off from io.streams.byte-array because it uses
! memcpy, which is a non-core word that only works after the
! optimizing compiler has been loaded.
M: byte-vector stream-write
[ dup byte-length tail-slice ]
[ [ [ byte-length ] bi@ + ] keep lengthen ]
[ drop byte-length ]
2tri
[ >c-ptr swap >c-ptr ] dip memcpy ;