computer programming, a function object is a construct allowing an object to be invoked or called as if it were an ordinary function, usually with the same...

keyboards Function model, a structured representation of processes in a system Function object or functor or functionoid, a concept of object-oriented...

function object in a decorator pattern. In pseudocode, this can be expressed as follows: function construct-memoized-functor (F is a function object parameter)...

dBL[clarification needed], and C) and object-oriented programming languages (such as C++, C#, and D). The simplest implementation of a function (or subroutine) pointer...

Object-oriented programming (OOP) is a programming paradigm based on the concept of objects. Objects can contain data (called fields, attributes or properties)...

In object-oriented (OO) and functional programming, an immutable object (unchangeable object) is an object whose state cannot be modified after it is...

retrieve the function as a value: (function foo) evaluates to a function object. #'foo exists as a shorthand notation. To apply such a function object, one must...

In object-oriented programming such as is often used in C++ and Object Pascal, a virtual function or virtual method is an inheritable and overridable function...

of a function object for every declaration. The object CalculusVer2 uses the std::result_of object to derive the return type of the function object: template<...

with languages where functions are first-class objects, in which functions can be returned as results from higher-order functions, or passed as arguments...

open/closed principle in object-oriented programming and software engineering. In essence, the visitor allows adding new virtual functions to a family of classes...

writing a new function object, simply by combining predefined function objects and function object adaptors. The class template std::function provided by...

languages, subtyping allows a function to be written to take an object of a certain type T, but also work correctly, if passed an object that belongs to a type...

In object-oriented programming, a factory is an object for creating other objects; formally, it is a function or method that returns objects of a varying...

grammar cannot distinguish between the creation of an object parameter and specification of a function's type. In those situations, the compiler is required...

be overloaded as Print(text_object T); Print(image_object P). If we write the overloaded print functions for all objects our program will "print", we...

fdefinition 'f to a new function object. fdefinition is a global function definition for the function named f. #' is an abbreviation for function special operator...

Perl and PHP, allow a function object to be passed. CLI languages such as C# and VB.NET provide a type-safe encapsulating function reference known as delegate...

ECMAScript standard. It has dynamic typing, prototype-based object-orientation, and first-class functions. It is multi-paradigm, supporting event-driven, functional...

library functions to support classes and class-based objects. In JavaScript, object creation is prototype-based instead: an object creating function can have...

In object-oriented programming, object copying is creating a copy of an existing object, a unit of data in object-oriented programming. The resulting object...

The point spread function (PSF) describes the response of a focused optical imaging system to a point source or point object. A more general term for...

when a function of an object is referenced as an object (freeing it from having any knowledge of its enclosing host object) the new function object can be...

escape the enclosing function, for example if functions are first class objects and a nested function is passed to another function or returned from the...

plane. Functions are widely used in science, engineering, and in most fields of mathematics. It has been said that functions are "the central objects of investigation"...

print CLOS objects. Instead the programmer may write a method on the generic function print-object, this will be invoked when the object is printed....

computer science, a higher-order function (HOF) is a function that does at least one of the following: takes one or more functions as arguments (i.e. a procedural...

hardware, and data-management functions like data replication and data distribution at object-level granularity. Object storage systems allow retention...

graphical objects. A graphical object may have a generic width function. The border-mixin would add a border around an object and has a method computing its...

Polymorphic function wrapper (function) – can store any callable function (function pointers, member function pointers, and function objects) that uses...