CentralNotice ANSI C From Wikipedia, the free encyclopedia Jump to: navigation , search This article is about the programming language standard. For the paper size, see Paper size#ANSI paper sizes . This article needs additional citations for verification . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed. (July 2010) ANSI C , also known as C89 and C90 depending on the year of ratification, refers to the family of successive standards published by the American National Standards Institute (ANSI) for the C programming language . Software developers writing in C are encouraged to conform to the standards, as doing so aids portability between compilers. 1 History and outlook 1.1 C89 1.2 C90 1.3 C95 1.3.1 Most important additions to C95 1.3.2 Preprocessor Test for C95 compatib...