Re: [Scheme-reports] Seeking review of sets and hash tables proposals

[Evan Hanson <evhan@x>]

On 2013/05/26 07:56P, Alaric Snell-Pym wrote:
> That issue already holds for lists and vectors; one needs to check
> up-front if they contain any closures or other non-printable objects to
> tell if they are printable.

But such a test for printability isn't possible for hash tables as
proposed. As you say, the printability of a list or vector is just a
function of its contents, so Scheme already provides the substrate for
e.g. `list-printable?`. This isn't the case for hash tables, and a way
to interrogate a table about its equivalence would also be needed.

Evan

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