BUG: realloc(p,0) should be consistent with malloc(0)

[Andreas Schwab]

On Jun 17 2025, Alejandro Colomar wrote:

> RETURN VALUE
>
>         If size is 0,
>         ...
>         either:
>
>             -  A null pointer shall be returned
>                and, if ptr is not a null pointer,
>                errno shall be set to EINVAL.
>
>             -  A pointer to the allocated space shall be returned,
>                and the memory object pointed to by ptr shall be freed.
>                 ...
>

Note that all of this is marked obsolescent.

-- 
Andreas Schwab, SUSE Labs, schwab@suse.de
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