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Re: transitivity does not imply type-checking
Jens Axel Søgaard <jensaxel@xxxxxxxxxxxx> writes:
> I was just saying *if* you make that interpretation, you need to
> type check all arguments.
Apologies for harping on about this, but my initial post contained a
counter-example: an implementation of = that meets the criteria of your
interpretation, yet does not type-check all args.
> If you don't you end up with unspecified
> behaviour. In srfi-67 the choice was made to require type-checking of
> arguments to compare functions in order to avoid unspecified
That is fine by me, but it is not the rationale given by the srfi
document, which instead claims that type-checking of all args is implied
by the R5RS requirement for transitivity. The point of this thread was
to ascertain whether the latter is actually the case. It isn't.
I am quite happy to leave it at that. It is only a minor issue that does
not affect the core of the specification. Anyone stumbling across it
will hopefully read this discussion.