| slovo | definícia |
polymorphic
(encz) | polymorphic,mnohotvárný adj: Zdeněk Brož |
polymorphic
(encz) | polymorphic,polymorfní adj: Zdeněk Brož |
Polymorphic
(gcide) | Polymorphic \Pol`y*mor"phic\, a.
Polymorphous.
[1913 Webster] |
polymorphic
(wn) | polymorphic
adj 1: relating to the crystallization of a compound in two or
more different forms; "polymorphous crystallization"
[syn: polymorphous, polymorphic]
2: relating to the occurrence of more than one kind of
individual (independent of sexual differences) in an
interbreeding population; "a polymorphic species" [syn:
polymorphic, polymorphous]
3: having or occurring in several distinct forms; "man is both
polymorphic and polytypic"; "a polymorphous god" [syn:
polymorphic, polymorphous] |
polymorphic
(foldoc) | polymorphism
polymorphic
The ability to leave parts of a type in a
typed language unspecified. The term has three distinct uses:
* Parametric polymorphism refers to the use of type variables in
a strongly typed language.
* Overloading, sometimes called ad-hoc polymorphism, means
using the same syntax for different types.
* object-oriented polymorphism allows a variable to refer
to objects whose class is not known at compile time.
(2014-01-05)
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| | podobné slovo | definícia |
Polymorphic
(gcide) | Polymorphic \Pol`y*mor"phic\, a.
Polymorphous.
[1913 Webster] |
polymorphic lambda-calculus
(foldoc) | polymorphic lambda-calculus
System F
(Or "second order typed lambda-calculus",
"System F", "Lambda-2"). An extension of {typed
lambda-calculus} allowing functions which take types as
parameters. E.g. the polymorphic function "twice" may be
written:
twice = /\ t . \ (f :: t -> t) . \ (x :: t) . f (f x)
(where "/\" is an upper case Greek lambda and "(v :: T)" is
usually written as v with subscript T). The parameter t will
be bound to the type to which twice is applied, e.g.:
twice Int
takes and returns a function of type Int -> Int. (Actual type
arguments are often written in square brackets [ ]). Function
twice itself has a higher type:
twice :: Delta t . (t -> t) -> (t -> t)
(where Delta is an upper case Greek delta). Thus /\
introduces an object which is a function of a type and Delta
introduces a type which is a function of a type.
Polymorphic lambda-calculus was invented by Jean-Yves Girard
in 1971 and independently by John C. Reynolds in 1974.
["Proofs and Types", J-Y. Girard, Cambridge U Press 1989].
(2005-03-07)
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