Editing ANSI C (section)

===C99===
{{Main article|C99}}
In March 2000, ANSI adopted the ISO/IEC 9899:1999 standard.<ref>{{Cite web|url=http://www.iso.org/cms/render/live/en/sites/isoorg/contents/data/standard/02/92/29237.html|title=ISO/IEC 9899:1999|website=ISO|language=en|access-date=2019-01-21}}</ref> This standard is commonly referred to as C99. Some notable additions to the previous standard include:

* New built-in [[C data types|data types]]: <code>long long</code>, <code>_Bool</code>, <code>_Complex</code>, and <code>_Imaginary</code>
* Several new core language features, including static array indices, designated initializers, compound literals, [[variable-length array]]s, [[flexible array member]]s, [[variadic macro]]s, and <code>[[restrict]]</code> keyword
* Several new library headers, including <code>[[stdint.h]]</code>, <code>&lt;tgmath.h&gt;</code>, <code>fenv.h</code>, <code>&lt;complex.h&gt;</code>
* Improved compatibility with several [[C++]] features, including [[inline function]]s, single-line [[Comment (computer programming)|comments]] with <code>//</code>, mixing [[Declaration (computer programming)|declarations]] and code, and universal character names in [[Identifier (computer programming)|identifiers]]
* Removed several dangerous C89 language features such as implicit function declarations and implicit <code>int</code>

Three technical corrigenda were published by ISO for C99:

* ISO/IEC 9899:1999/Cor 1:2001(E)
* ISO/IEC 9899:1999/Cor 2:2004(E)
* ISO/IEC 9899:1999/Cor 3:2007(E), notable for deprecating the standard library function [[gets()|gets]]

This standard has been withdrawn by both ANSI/INCITS<ref>{{cite web|url=https://webstore.ansi.org/Standards/INCITS/INCITSISOIEC98992012|title=INCITS/ISO/IEC 9899-2012|publisher=ANSI}}</ref> and ISO/IEC<ref>{{cite web|url=https://www.iso.org/standard/29237.html|title=ISO/IEC 9899:1999 - Programming Languages -- C|access-date=2012-06-24}}</ref> in favour of C11.