Objective-C

Objective-C is an object-oriented superset of by  and Tom Love of  (later Productivity Products International). Its additions to the C programming language are few and are mostly based on. Objective C is implemented as a for C. Its  is a superset of standard C syntax, and its compiler accepts both C and Objective C source code (filename extension ".m").

Description
Objective-C has no operator overloading, multiple inheritance, or class variables. It does have dynamic binding. It is used as a primary system programming language by NeXT and its successor, Apple Inc. As implemented for NeXTSTEP and its derivatives, Mac OS X (now macOS), iPadOS, and iOS, the Objective C language is fully compatible with.

Objective-C can also be used as an extension to, which lacks some of the possibilities for object-oriented design that and  bring to Objective C. C++ also has features not found in Objective C.

Versions exist for MS-DOS, Macintosh, / and Unix workstations. Language versions by, NeXT, and are slightly different.