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add some more bit-twiddling words

db4
Doug Coleman 2008-03-04 22:32:42 -06:00
parent e156e0212c
commit 5c93d43aa1
1 changed files with 4 additions and 0 deletions
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extra/math/functions/functions.factor
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@ -34,6 +34,10 @@ M: real sqrt
: set-bit ( x n -- y ) 2^ bitor ; foldable
: bit-clear? ( x n -- ? ) 2^ bitand zero? ; foldable
: bit-set? ( x n -- ? ) bit-clear? not ; foldable
: unmask ( x n -- ? ) bitnot bitand ; foldable
: unmask? ( x n -- ? ) unmask 0 > ; foldable
: mask ( x n -- ? ) bitand ; foldable
: mask? ( x n -- ? ) mask 0 > ; foldable
GENERIC: (^) ( x y -- z ) foldable