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TenDRA Compiler
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<p>The TenDRA Compiler is a C/C++ <a href="/facts/Compiler/WNfCDFJe">compiler</a> for <a href="/facts/POSIX/mQkSt234">POSIX</a>-compatible <a href="/facts/Operating_system/8XTuvMh2">operating systems</a> available under the terms of the <a href="/facts/BSD_license/XLtmLp5x">BSD license</a>. </p><p>It was originally developed by the <a href="/facts/Defence_Evaluation_and_Research_Agency/RyyEXFCr">Defence Evaluation and Research Agency</a> (DERA) in the <a href="/facts/United_Kingdom/kuPAILt2">United Kingdom</a>. 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. </p><p>The <a href="/facts/TenDRA_Distribution_Format/JT8xQxwN">TDF</a> technology behind TenDRA has an academic history dating back to work on algebraic code validation in the 1970s. </p><p>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. </p><p>The goals of TenDRA.org are: </p> <ul><li>to continuously produce correct code,</li> <li>to ensure code correctness through various means, and</li> <li>to continuously improve the performance of the compiler and resulting code, unless it would jeopardize the points above.</li></ul> <p>The goals of Ten15.org added: </p> <ul><li>to be a friendly competitor to GCC in order to get a best-of-breed compiler.</li></ul> <p>Features of both compilers include good error reporting with respect to standards compliance and a smaller code size than the same programs compiled on <a href="/facts/GNU_Compiler_Collection/t07jh01k">gcc</a>. C++ support never got as developed as C support, and there was no STL supporting release. TenDRA uses the <a href="/facts/Architecture_Neutral_Distribution_Format/9q9UQgKU">Architecture Neutral Distribution Format</a> (ANDF), a specification created by the <a href="/facts/Open_Group/uRoDdEae">Open Group</a>, as its <a href="/facts/Intermediate_language/s0qRrbfh">intermediate language</a>. </p><p>At a point, most of the Alpha <a href="/facts/OSF%2f1/mck5Bgyq">OSF/1</a> kernel could be built with TenDRA C and afterwards there was also a similar effort to port the <a href="/facts/FreeBSD/RKsFTm7F">FreeBSD</a> kernel. </p>