On 2 July 2022 14:47:01 CEST, Mikael Morin <morin-mik...@orange.fr> wrote: >Le 02/07/2022 à 13:18, Thomas Koenig a écrit : >> >> One thought: If we have to bite the bullet and break the ABI, why not go >> all the way and use the C descriptors in ISO_Fortran_binding.h as >> gfortran's native format? >> >As far as I know, CFI descriptors are mutually exclusive with >non-negative array indexes. > >CFI descriptors' base_addr field points to the first element in >descriptor indexing order, so they can be indexed negatively and we >can’t safely use array indexing with them. > >With an additional offset field it would be possible though (with a >different semantics for the base_addr field). Or we just keep the >different semantics of the base_addr field and assume that there is an >implicit offset with value sum(extent * max(-sm, 0)). > >Anyway, this is the long-delayed array descriptor reform, right? Any
I think so, yes. >one remembers how far we are from it? We have a wiki page with notes IIRC.
