> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]
> Behalf Of Jim & Mary Ronback
> Sent: 22 April 2004 19:57
> To: Greenarrow 1
> Cc: Kenneth R. van Wyk; [EMAIL PROTECTED]; James Walden;
> Rod Chapman
> Subject: [SC-L] Anyone looked at security features of D programming
> language compared to Spark?
>
>
> Has anyone compared D with Spark. Spark is the high-integrity
> Ada subset
> which allows a very powerful static analysis, using a tool called the
> Spark Examiner.
Might be interesting; however, I always deeply suspicious of feature comparison lists
because what matters is "are the features useful or appropriate?". You can easily
conclude that an old and battered saloon/sedan car is better than a F1 racing car:
Sedan F1
Number of doors 4 0
Number of windows 6 0
Seats 4 1
Fuel consumption 20 3
etc.
All great fun but not much good if you are going motor racing!
SPARK has a set of features carefully chosen to be suitable and sufficient for serious
work while still allowing fast and very deep static analysis. So your comparison
tables would need some additional rows:
Exact semantics (source code completely predicts compiled behaviour) YES
Complete freedom from implementation dependencies (e.g eevaluation order) YES
Statically verified design by contract YES
Static proof of freedom from all run time errors, array bounds violation etc. YES
and probably quite a few others.
Peter
**********************************************************************
This email and any files transmitted with it are confidential and
intended solely for the use of the individual or entity to whom they
are addressed. If you have received this email in error please notify
the system manager. The IT Department at Praxis Critical Systems can be contacted at
[EMAIL PROTECTED]
This footnote also confirms that this email message has been swept by
MIMEsweeper for the presence of computer viruses.
www.mimesweeper.com
**********************************************************************
________________________________________________________________________
This e-mail has been scanned for all viruses by Star Internet. The
service is powered by MessageLabs. For more information on a proactive
anti-virus service working around the clock, around the globe, visit:
http://www.star.net.uk
________________________________________________________________________
