Function overloading: Difference between revisions

Revision as of 09:30, 29 January 2025

Revision as of 07:25, 27 May 2025

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In some [[programming language]]s, '''function overloading''' or '''method overloading''' is the ability to create multiple [[subprogram|functions]] of the same name with different implementations. Calls to an overloaded function will run a specific implementation of that function appropriate to the context of the call, allowing one function call to perform different tasks depending on context.

== Basic definition ==

For example, {{mono|doTask()}} and {{nowrap|{{mono|doTask(object o)}}}} are overloaded functions. To call the latter, an [[object (computer science)|object]] must be passed as a [[parameter (computer science)|parameter]], whereas the former does not require a parameter, and is called with an empty parameter field. A common error would be to assign a default value to the object in the second function, which would result in an ''ambiguous call'' error, as the [[compiler]] wouldn't know which of the two methods to use.

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* [[Python (programming language)|Python]]

Languages whichthat doesdo not support function overloading include [[C (programming language)|C]], [[Rust (programming language)|Rust]] and [[Zig (programming language)|Zig]].

==Rules in function overloading==