Ada 2012 Approved
Ada 2012 Approved
Written by Kay Ewbank   
Thursday, 27 December 2012

The ISO has published a new standard for Ada, the language originally developed for the US Department of Defense. The new version, Ada 2012, has enhancements for contract-based programming.

According to  the Ada Resource Association (ARA), the features added for this purpose include the ability to specify preconditions and postconditions for subprograms, and invariants for private (encapsulated) types. These take the form of Boolean expressions that can be interpreted as run-time conditions to be checked. The contract-based programming features have been designed to support the type substitutabilty guidance that has been developed as a supplement to the new avionics software safety standard DO-178C / ED-12C.




Other new features in Ada 2012 include enhancements to the containers library, additional expressiveness through features such as conditional expressions and more powerful iterators, and support for multicore platforms. The support for multicore includes task affinities, and the extension of Ada’s support for high-integrity real-time systems to multiprocessor and multicore environments.

A technical summary of Ada 2012, along with an explanation of the language’s benefits and a set of links to further information, is available at The info includes a comparison chart that shows the evolution of the major features of the language and this  video covering the new features of Ada 2012.


Ada, named in honour of Ada Lovelace who is widely recognized as the first computer programmer. was first developed from 1977 to 1983 by a team at CII Honeywell Bull under contract to the United States Department of Defense (DoD). At the time, the DoD used hundreds of programming languages and Ada was intended to be the sole replacement. This pedigree led to many forecasting that Ada would become the dominant programming language overall, but it has largely remained within government-led sectors such as avionics and space travel. Even so it has been in the top 20 languages according to the Tiobe index for the last couple of years.



More Information

Ada 2012

Related Articles

Ada Lovelace, the first programmer

The Top Languages of 2011


To be informed about new articles on I Programmer, install the I Programmer Toolbar, subscribe to the RSS feed, follow us on, Twitter, Facebook, Google+ or Linkedin,  or sign up for our weekly newsletter.


blog comments powered by Disqus



Google Doodle For Boole 200

You might have guessed that Google would celebrate the 200th birthday of George Boole, the man who invented the logic that computers and programmers use, with a Doodle. This one is Boolean logic and a [ ... ]

The Allen Institute's Semantic Scholar

A new tool has been launched, one that applies the power of AI to searching through scientific papers.

More News

Last Updated ( Thursday, 27 December 2012 )

RSS feed of news items only
I Programmer News
Copyright © 2015 All Rights Reserved.
Joomla! is Free Software released under the GNU/GPL License.