> -----Original Message-----
> From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] On
Behalf Of Olin
> Lathrop
> Sent: 05 July 2010 15:25
> To: Microcontroller discussion list - Public.
> Subject: Re: [OT]:: Anciem Regime
> 
> RussellMc wrote:
> > Variables beginning I...M were implicitly declared as constants
> > unless explicitly declared otherwise.
> 
> No, they were implicitly integers.  I don't remember Fortran having
symbolic
> constants (but it could have, it's been a while).

And AIUI these defaults assumed have been implicated in spacecraft going
missing at critical moments, because someone changed from the default to
Real, and other users of the variable didn't notice/weren't
told/whatever.

The event that I recall may have been the other way, a default real
redeclared as an integer.

Assumed defaults can be real dangerous in critical applications.
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