[TUHS] A few comments on porting the Bourne shell

[Paul Winalski]

On 1/2/23, Clem Cole <clemc at ccc.com> wrote:
>
> FWIW: In my start-up times, under the same rules of being disciplined, as
> VP of Engineering, I insisted, all C and C++ code was required to
> 'flex-e-lint' warning clean.   I gave my folks a 3-week week slip to clean
> everything up.   I was cursed during that time.   But guess what, the
> outstanding bug list dropped to ⅒ of what it had been.  Created quite a few
> true believers.  And we made those 3 weeks back before we were done.

This was also the policy in DEC's compiler and software development
tools groups.  This was mainly VMS stuff and we didn't have flex and
lint, but as Clem can attest the C and C++ compilers had very
extensive warning capabilities.  It was group policy that all code had
to compile cleanly, without triggering diagnostic messages, before
check-in was allowed.  Once you get through the initial cleanup of
existing code, this policy pays back big time in avoidance of nasty
Heisenbugs.

-Paul W.