An object-oriented superset of ANSI C by Brad Cox, Productivity Products. Its additions to C are few and are mostly based on Smalltalk. Objective C is implemented as a preprocessor for C. Its syntax is a superset of standard C syntax, and its compiler accepts both C and Objective C source code (filename extension “.m”).
It has no operator overloading, multiple inheritance, or class variables. It does have dynamic binding. It is used as the system programming language on the NeXT. As implemented for NEXTSTEP, the Objective C language is fully compatible with ANSI C.
Objective C can also be used as an extension to C++, which lacks some of the possibilities for object-oriented design that dynamic typing and dynamic binding bring to Objective C. C++ also has features not found in Objective C.
Versions exist for MS-DOS, Macintosh, VAX/VMS and Unix workstations. Language versions by Stepstone, NeXT and GNU are slightly different.
There is a library of (GNU) Objective C objects by R. Andrew McCallum with similar functionality to Smalltalk’s Collection objects. It includes: Set, Bag, Array, LinkedList, LinkList, CircularArray, Queue, Stack, Heap, SortedArray, MappedCollector, GapArray and DelegateList. Version: Alpha Release. (ftp://iesd.auc.dk/pub/ObjC/).
See also: Objectionable-C.
[“Object-Oriented Programming: An Evolutionary Approach”, Brad Cox, A-W 1986].
- Objective caml
language (Originally “CAML” – Categorical Abstract Machine Language) A version of ML by G. Huet, G. Cousineau, Ascander Suarez, Pierre Weis, Michel Mauny and others of INRIA. CAML is intermediate between LCF ML and SML [in what sense?]. It has first-class functions, static type inference with polymorphic types, user-defined variant types and product types, and […]
noun 1. (def 2a). [uh b-jek-tiv] /əbˈdʒɛk tɪv/ noun 1. something that one’s efforts or actions are intended to attain or accomplish; purpose; goal; target: the objective of a military attack; the objective of a fund-raising drive. 2. Grammar. 3. Also called object glass, object lens, objective lens. Optics. (in a telescope, microscope, camera, or […]
noun 1. .
noun, Literature. 1. a completely depicted situation or chain of events that objectifies a particular emotion in such a way as to produce or evoke that emotion in the reader.
- Objective danger
noun 1. (mountaineering) a danger, such as a stone fall or avalanche, to which climbing skill is irrelevant