On Dec5, 2013, at 15:44 , Andres Freund <and...@2ndquadrant.com> wrote: > There might be some ugly compiler dependent magic we could do. Depending > on how we decide to declare offsets. Like (very, very roughly) > > #define relptr(type, struct_name, varname) union struct_name##_##varname{ \ > type relptr_type; \ > Offset relptr_off; > } > > And then, for accessing have: > #define relptr_access(seg, off) \ > typeof(off.relptr_type)* (((char *)seg->base_address) + off.relptr_off) > > But boy, that's ugly.
Well, uglyness we can live with, especially if it's less ugly than the alternatives. But I'm afraid is also unportable - typeof() is a GCC extension, not a part of ANSI C, no? best regards, Florian Pflug -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers