Editing TenDRA Compiler

{{short description|C/C++ compiler for POSIX-compatible operating systems}}
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{{Infobox software
| name                   = TenDRA
| logo                   =
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| author                 =
| developer              =
| released               =
| latest release version = 4.1.2
| latest release date    =
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| frequently updated     =
| programming language   = [[C (programming language)|C]]
| operating system       = [[POSIX]]
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| language               =
| status                 =
| genre                  = [[Compiler]]
| license                = [[BSD license]]
| website                = {{URL|http://www.tendra.org}}
}}
The '''TenDRA Compiler''' is a C/C++ [[compiler]] for [[POSIX]]-compatible [[operating system]]s available under the terms of the [[BSD license]].

It was originally developed by the [[Defence Evaluation and Research Agency]] (DERA) in the [[United Kingdom]]. In the beginning of 2002 TenDRA was actively developed again by Jeroen Ruigrok van der Werven and offered as a BSD-licensed open source project through the website tendra.org.  In the third quarter of 2002 the one-man effort was expanded to a small team.

The [[TenDRA Distribution Format|TDF]] technology behind TenDRA has an academic history dating back to work on [[algebraic code validation]] in the 1970s.<ref>{{cite web |url=http://www.tendra.org/papers/ |title=Academic Papers}}</ref>

In August 2003 TenDRA split into two projects, TenDRA.org and Ten15.org. Both projects seemed to have disappeared from the web around 2006–2007, but actually they are still active.<ref>{{citation |title=The TenDRA project news |url=//www.tendra.org/status/news/index.html |url-status=dead |archive-url=https://web.archive.org/web/20071213212755/http://www.tendra.org/status/news/index.html |archive-date=December 13, 2007 }}</ref><ref>{{citation | title = root/trunk/tendra/NEWS | url = http://www.ten15.org/browser/trunk/tendra/NEWS}}</ref>

The goals of '''TenDRA.org''' are:{{cn|date=March 2022}}
*to continuously produce correct code,
*to ensure code correctness through various means, and
*to continuously improve the performance of the compiler and resulting code, unless it would jeopardize the points above.

The goals of '''Ten15.org''' added:{{cn|date=March 2022}}
*to be a friendly competitor to GCC in order to get a best-of-breed compiler.

Features of both compilers include good error reporting with respect to standards compliance and a smaller code size than the same programs compiled on [[GNU Compiler Collection|gcc]]. C++ support never got as developed as C support, and there was no STL supporting release. TenDRA uses the [[Architecture Neutral Distribution Format]] (ANDF), a specification created by the [[Open Group]], as its [[intermediate language]].

At a point, most of the Alpha [[OSF/1]] kernel could be built with TenDRA C and afterwards there was also a similar effort to port the [[FreeBSD]] kernel.

==Documentation==
TenDRA.org has a comprehensive set of documentation available online at http://www.tendra.org/docs

Manual pages for references to programs and file formats are available at http://www.tendra.org/man

==See also==
{{Portal|Free and open-source software}}
* [[TenDRA Distribution Format]]

==References==
{{Reflist}}

==External links==
{{external links|date=March 2022}}
*{{webarchive |url=https://web.archive.org/web/20071222090240/http://www.tendra.org/about/ |date=December 22, 2007 |title=About - tendra.org }}
*[http://www.tendra.org/ The TenDRA Project]
*[https://github.com/tendra/tendra Page on GitHub]
*[https://bitbucket.org/asmodai/tendra bitbucket copy of the TenDRA src repository]
*{{webarchive |url=https://web.archive.org/web/20110515122552/http://www.ten15.org/ |date=May 15, 2011 |title=ten15.org }}
*[http://www.freshports.org/lang/TenDRA TenDRA in the FreeBSD ports collection]
*[http://packages.debian.org/stable/devel/tendra TenDRA in Debian]
*[https://www.jantar.org/TenDRA/ mirror of the original TenDRA web page from DERA]

{{DEFAULTSORT:Tendra Compiler}}
[[Category:Compilers]]
[[Category:C (programming language) compilers]]
[[Category:C++ compilers]]
[[Category:Free and open source compilers]]
[[Category:History of computing in the United Kingdom]]
[[Category:Science and technology in Hampshire]]
[[Category:Software using the BSD license]]
[[Category:Unix programming tools]]