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Category:C: Difference between revisions
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{{language|C}}{{Codepad}}<div class="messagebox">Due to technical limitations, the link [[C sharp|C#]] points to here in some articles. To correct this issue, replace <nowiki>[[C#]] with [[C sharp|C#]]</nowiki>. Additionally, a bug in mod_rewrite causes some C++ links to redirect here. Try [http://rosettacode.org/w/index.php?title=C%2B%2B this link] instead.</div>
'''C''' is a general-purpose, [[procedural programming|procedural]], [[imperative programming|imperative]] computer programming language developed in 1972 by Dennis Ritchie at the [[Bell Labs|Bell Telephone Laboratories]] for use with the [[UNIX]] operating system. It has since spread to many other [[:Category:Platforms|platforms]], and is now one of the most widely used programming languages. C has also greatly influenced many other popular languages, such as [[C++]] and [[Objective-C]], which were originally designed as enhancements to C. People are so familiar with its syntax that many other languages such as [[AWK]], [[PHP]], [[Java]], [[JavaScript]], [[D]], and [[C Sharp|C#]] deliberately used its "look and feel". C is the most commonly used programming language for writing system software, though it is also widely used for writing applications. [[C]] is the ''lingua franca'' of the [[open source]] community.
==Versions==
* '''K&R C''' was the first widely-used form of C. It was originally documented in ''The C Programming Language'', published in 1978. It is named for the authors, Brian Kernighan and Dennis Ritchie (also the language's creator). Code in this style is virtually nonexistent today.
* '''C89''' (often called '''[[ANSI]] C''') is the version of C standardized by ANSI in 1989. It is the most commonly used and supported version of the language. The term "C" usually refers to C89 or C90.
* '''C90''' (often called '''[[ISO]] C''') is a minor improvement to C89, standardized by ISO in 1990. Most C compilers support it by default.
* '''C99''' is a significant improvement, adopting many features of [[C++]] and standardizing common compiler extensions. It was standardized by ISO in 1999, and by ANSI in 2000. It is not completely supported by most, if any, compilers, but many of its features are available in [[GCC]].
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