Hi Andreas, On Wed, Jun 18, 2025 at 05:42:40PM +0200, Andreas Schwab wrote: > 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.
Note that it's marked obsolescent because ISO C has turned this into UB. If ISO C defines the behavior again, then the obsolescence of this could be reverted. Have a lovely day! Alex -- <https://www.alejandro-colomar.es/>
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