🚀 go-pugleaf

> : >>I need a DOS Modula-2 compiler that will pack subranges, for example,
> : >>[0..255] would be stored in 1 BYTE.  The compiler that I ues store it as
> : 
> : Problem is I'm doing cross platform development and my code already takes
> : advantage of subrange packing on the Mac side.
> 
> Most DOS compilers should -- for one I know that the TopSpeed
> compilers pack all data types into the smallest possible memory.  You

I checked when I saw the posting and JPI V3.02 does not seem to pack CARDINALs
which have a subrange of <= 255
It does pack BITSET and this is very useful for sets of flags, particularly
when the underlying data has to exactly match a binary file.

Personally I am nervous about relying on particular optimisations used by a
compiler because of just this sort of problem.

Maintenance might be easier if an explicit cast is used at some point instead
of a completely hidden side effect?

  TC. 
    E-mail: tchannon@black.demon.co.uk or tchannon@cix.compulink.co.uk
                                nu.c