crash on __gmpz_init

[Vincent Lefevre]

On 2024-01-22 15:01:24 +0100, Vincent Lefevre wrote:
> I'm just surprised that GCC doesn't emit any warning
> (even with -O2 -Wall -Wextra), as some pointers are obviously
> incorrect.

The missing warning seems clearly a bug in GCC (I get a warning in
similar code, but not for the combination of malloc() and a loop),
which I've just reported:

  https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113540

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