Setup Tips for Your Next Programming Project

K&R C

• Everything before standardization is generally called “K&R C”
• the C language from 1972-1989 (first edition)

ANSI C

• first C standard was released in 1989 nationally in USA, by their national standard institute ANSI (American National Standards Institute)
• This release is called C89 or ANSI-C this was “the C language” (second edition released 1988)
• The year after, this was internationally and published by ISO. This released is called C90. Technically, it is same standard as C89/ANSI-C
• Since 1989 ANSI haven’t had anything to do with the C language, other than as one of many instances working on the ISO standard.
• ISO “owns” the C language, through the standard ISO 9899.

C95

• minor update
• The main change was introduction of wide character support

C99

• Major revision
• “the C language” from 1999-2011

C11

• New features like Generic, Static_assert and thread support were added to the language. The update had a lot of focus on multi-core, multi-processing and expression sequencing.
• “the C language” from 2011-2017

C17