Subj : Re: Rollback Functions
To   : comp.programming
From : Dave
Date : Wed Oct 12 2005 11:48 am

Jon Harrop wrote:
> Phlip wrote:
> 
>>Research "Test Driven Development". Prevention is better than a cure.
> 
> 
> Better still, ditch "test driven development" and use OCaml for its static
> checking to avoid most of the problems in the first place and its
> time-reversible debugger that already implements Yao's suggestion.
> 

Switching to a different language won't stop bugs happening.  A company 
I worked for a few years ago analysed a project at the end of its 
development cycle that was written half in C and half in Ada.  The study 
revealed NO SIGNIFICANT DIFFERENCE in the number and complexity of bugs 
in the C and Ada halves.

Some debuggers already implement rollback; not Visual Studio, 
unfortunately, afaik.  It could sometimes really help when stepping 
through stuff to be able to back up a few steps and rerun them, and the 
only way of doing that at present is to set a breakpoint back a bit, 
then restart the debug, which is tedious.

.