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Function Object ○꠹｜Definition｜1st｜20251122201720-00-⌔

Function object - Wikipedia

Function object

In computer programming, a function object¹ is a construct allowing an object to be invoked or called as if it were an ordinary function, usually with the same syntax (a function parameter that can also be a function). In some languages, particularly C++, function objects are often called functors (not related to the functional programming concept).

Printed 2026-06-28.

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Footnotes

1. In C++, a functionoid is an object that has one major method, and a functor is a special case of a functionoid.${}^{[1]}$ They are similar to a function object, but not the same. ↩

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