Hi Florian,
Thanks a lot for cleaning up all the things around bits, also in my AFP
entries.
IIRC the int / integer bit operation material in Native_Word ended up in
the entry because I needed them for implementing a symbolic execution
strategy that works with the code generator setup in Native_Word. As
such, the two setups were originally coupled fairly tightly. I do not
know whether that's still the case, but I would suspect so as I haven't
noticed any big changes in this direction. So from a maintenance
perspective, it makes sense to me to keep them in the same place.
Best,
Andreas
Am 26.02.2022 um 20:36 schrieb Florian Haftmann:
Hi Andreas,
after the substantial »disentangling« of bit operations and word types
in the last Isabelle release, I went through the theories in Native_Word
concerning code generation for int / integer to clarify the historically
grown theory names following the naming convention of theories
Code_*.thy from HOL-Library (hg id 700323b3c105).
The situation is still not 100% convincing since – despite the session
name – those theories refer to bit operations on int / integer, not
word, but I do not see an alternative which would be worth the effort,
e. g. moving to the distribution or separating into a dedicated AFP
entry Native_Bit or similar.
What could still be done is to eliminate some reminiscences e. g. to the
now discontinued ancient signed numeral representation, but this will
not be a game changer either.
But maybe you want to have a look at the current matter of affairs which
to your eyes might suggest improvements. No urgency.
Cheers,
Florian
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