> > I'll second Vic on this. My experience with converting from VADS to > > GNAT has been that the ONLY noticible cost is the restesting. Even on > > fairly large software suites, the time to get recompiled and up and running > > is less than it takes to talk about it. Third. I have spent less then 45 hours porting 17,000 files from Apex to GNAT. Only two (maybe three) significant* compiler bugs found in that time, and these affected less than 30 files. One of these bugs bit about fifteen files, but for all of them, a slight restructuring of the code was enough to compile. A good portion of those hours was spent repeating things because I didn't have the disk space to do it right the first time. :-) * "significant" meaning the bug took more than a couple of days for ACT to fix it. Now it didn't take 45 hours to talk about that, but we'll tolerate a little exaggeration. :-)