https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87683
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |accepts-invalid,
| |diagnostic, documentation
Status|UNCONFIRMED |NEW
Last reconfirmed| |2018-10-22
Ever confirmed|0 |1
--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
You cannot use alloc_align on posix_memalign, alloc_align only works for
functions that _return_ the allocated pointer (likewise alloc_size).
We should probably diagnose this based on the return value being 'int'
and not a pointer. Confirmed as diagnostic issue.
Quoting docs:
item alloc_size
@cindex @code{alloc_size} function attribute
The @code{alloc_size} attribute is used to tell the compiler that the
function return value points to memory, where the size is given by
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@item alloc_align
@cindex @code{alloc_align} function attribute
The @code{alloc_align} attribute is used to tell the compiler that the
function return value points to memory, where the returned pointer minimum
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
