Representing +inf, -inf and nan in mpq_class objects

[Kevin Ryde]

Roberto Bagnara <bagnara at cs.unipr.it> writes:
>
> resorting to normal mpz_class
> operations only for normal values.

Provided your special values don't reach the mpq functions there
shouldn't be any problems.

A few mpq functions will be happy with any values actually, eg.
mpq_set and the input/output routines I think.

> e.g., if the (present or future) implementation
> does too much automatic canonicalization.

There's no plans for anything like that.