Extending the mpn interface

[bodrato at mail.dm.unipi.it]

Ciao!

A comment about roinit...

Il Sab, 23 Febbraio 2013 5:45 pm, Niels Möller ha scritto:
> +mpz_srcptr
> +mpz_roinit_n (mpz_ptr x, mp_srcptr xp, mp_size_t xs)
> +{
> +  ALLOC (x) = 0;
> +  SIZ (x) = xs;
> +  PTR (x) = xp;
> +  return x;
> +}

This function trusts the caller with regards to normalisation. I'm not
sure I like this. I think we should:
 - normalize (same code as mpz_limbs_finish) before setting SIZ, or
 - add an ASSERT (xs == 0 || xp[ABS (xs)] != 0), and add a "normalize"
function or macro to the documented interface.

Regards,
m

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