Re: Assertions in principle

From:
"=?iso-8859-1?q?Kirit_S=E6lensminde?=" <kirit.saelensminde@gmail.com>
Newsgroups:
comp.lang.c++
Date:
4 Mar 2007 22:43:29 -0800
Message-ID:
<1173077009.222446.229700@j27g2000cwj.googlegroups.com>
On Mar 4, 6:36 pm, "Gavin Deane" <deane_ga...@hotmail.com> wrote:

On 4 Mar, 10:29, rpbg...@yahoo.com (Roland Pibinger) wrote:

On Sun, 04 Mar 2007 23:14:14 +1300, Ian Collins rote:

I am describing using asserts to enforce the contract between the
application and its operating environment. If a device or library
specification specifies a valid set of output values, assert is a good
sanity check.


Is a contract violation a bug or an expected runtime scenario? IMO,
the latter.


How do you engineer a reliable product if you expect third party
components (software or hardware) not to adhere to their interface
specifications? If you expect them to do that you need to change
supplier.


Isn't the ability to do just that what we strive to do? To write
reliable software even in the face of the unexpected?

I always looked at everything that I've done to try to engineer better
software as being able to cope with every more error cases and faulty
systems (and users) with the minimum of problems.

K

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