mpz_limbs_modify doesn't clear new limbs

Vincent Lefevre vincent at vinc17.net
Thu Jan 2 11:07:41 CET 2025


Hi,

On 2025-01-02 10:31:55 +0100, Ivo maffei wrote:
> In both cases, the most significant limb might not be zero.
> So, is this a bug or mpz_limbs_modify was never meant to zero the new limbs?

Note that not all *allocated* limbs are used, and I don't think
that unused limbs are required to be zero. See

  16.1 Integer Internals

and _mp_size vs _mp_alloc.

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Vincent Lefèvre <vincent at vinc17.net> - Web: <https://www.vinc17.net/>
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