Fernando Sáenz Pérez <
fernan@...> writes:
> As a user, with respect to those default options, I'd expect not to
> mix incompatible options when I state them and, if mixed, I would
> expect an exception. I dislike to allow to state incompatible or
> overridable options and let the system decide in terms of a given
> criteria (e.g., selecting the rightmost option). For instance:
> [ff,ffc] would raise an exception.
Yes, this sounds good. It is only left to decide which error this is. A
domain error seems sensible, but what should be the culprit? The whole
list, just the two contradicting options, or something else? A
representation error would be justified too since we can regard [ff,ffc]
as a system defined limit: We currently cannot handle such contradicting
options, but something sensible could be done with them. Opinions?
Examples of other predicates that handle contradicting options sensibly?
All the best,
Markus
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