[Haskell-cafe] Response to unexpected doubt in haskell-cafe (was: Doubting Haskell)

[Albert Y. C. Lai]

Alan Carter wrote:
>   if((fp = fopen(...)) != NULL)
>   {
>     if(fgets(...) != NULL)
>     {
>       printf(...);
>     }
> 
>     fclose(...)
>   }

This reminds me of a 1976 article written by David Parnas and Harald 
Würges: Response to undesired events in software systems. Since it's 
old, it is harder to find, but here are a few things to try:

If you have download privilege on ACM Digital Library,
http://portal.acm.org/citation.cfm?id=800253.807717

(If not, you can still see the full citation, the abstract, etc.)

The paper is also collected in this book full of Parnas's papers:
Software Fundamentals: collected papers by David L. Parnas. Edited by 
Daniel M. Hoffman and David M. Weiss.

Someone else made slides to present this paper:
http://www.cs.virginia.edu/~wh5a/personal/Quals/misc/ParnasPaper%20on%20stanley/ResponseToUndesiredEvents.ppt