Re: [PATCH] Reimplement aligned_alloc

The 05/19/2020 19:41, Sebastian Huber wrote:
> Hello,
> 
> On 19/05/2020 11:52, Szabolcs Nagy wrote:
> > - Failed to set errno on error.
> why should aligned_alloc() set errno on error?

iso c allows standard api calls to set errno
(except not to 0) but usually does not specify
error conditions, however posix does and
requires allocation functions to set errno
to ENOMEM on failure.

posix is not yet aligned with c11 so there is
no errno specification for aligned_alloc but
that does not mean newlib should make it
deliberately inconsistent with other allocation
functions, users will try to use perror or
strerror when calls fail that may internally
use aligned_alloc and expect reasonable error
message.