Handbook
Glossary
2tri@ ( u v w x y z quot -- )
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tri@ ( x y z quot -- )
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both? ( x y quot -- ? )
Vocabulary
kernel
Inputs
u
an
object
v
an
object
w
an
object
x
an
object
y
an
object
z
an
object
quot
a
quotation
with stack effect
( obj1 obj2 -- ... )
Outputs
None
Word description
Applies the quotation to
u
and
v
, then to
w
and
x
, and then to
y
and
z
.
Examples
The following two lines are equivalent:
[ p ] 2tri@ [ [ p ] 2dip p ] 2dip p
The following two lines are also equivalent:
[ p ] 2tri@ [ p ] [ p ] [ p ] 2tri*
Definition
IN:
kernel
:
2tri@
( u v w x y z quot -- )
dup
dup
2tri*
;
inline