On Thu, 29 Mar 2018, Niels Möller wrote: > Richard Biener <rguent...@suse.de> writes: > > > I would be surprised if that wouldn't work everywhere - any reason > > you have doubts? To clarify, allocation would work like > > > > void *ptr = malloc (... + sizeof (size_t)); > > ->_mp_d = (char *)ptr + sizeof (size_t); > > size_t *size = ptr; > > That would give bad alignment in the case that limbs are 64 bits but > size_t only 32 bits (and the x86_64 "x32" abi is something like that, > right?).
Yes. Make it ->_mp_d = (char *)ptr + MAX(sizeof (size_t), alignof (limb_t)); and adjust the access accordingly. Richard. > Regards, > /Niels > > -- Richard Biener <rguent...@suse.de> SUSE LINUX GmbH, GF: Felix Imendoerffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nuernberg) _______________________________________________ gmp-devel mailing list gmp-devel@gmplib.org https://gmplib.org/mailman/listinfo/gmp-devel
