[PATCH] Return NULL for zero size allocations

Chris Johns chrisj at rtems.org
Wed May 5 06:58:24 UTC 2021

On 5/5/21 4:52 pm, Sebastian Huber wrote:
> In POSIX, zero size memory allocations are implementation-defined
> behaviour.  The implementation has two options:
> https://pubs.opengroup.org/onlinepubs/9699919799/functions/malloc.html
> https://pubs.opengroup.org/onlinepubs/9699919799/functions/posix_memalign.html
> Linux and FreeBSD return a unique pointer for zero size memory
> allocations.   Return NULL on RTEMS to more likely catch the use of a
> zero size memory area by erroneous applications.
> Update #4390.

Huh? Are we going in circles here [1]?


[1] https://git.rtems.org/rtems/commit/?id=d692c62dfbf834c16ef7f171ea3161b3f3fac06b

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