Re: Data Structure Reorganizing Optimizations

dsiebert@icaen.uiowa.edu (Doug Siebert) writes:
>why not use a C keyword to indicate when the optimizations *can* be done?
>This allows the optimizations to be done, without causing any problems for
>older code. Unfortunately, a good keyword doesn't exist, but we can pick one
>from the list of reserved words. Maybe a 'void struct'?


Well, a struct-or-union-specifier has a tag `slot' where one could put
extra keywords if so inclined. How about


typedef struct foo static { ... } foo;


to indicate a structure type whose layout can be optimized for the
current compilation unit; using |static| even makes some sort of
sense. (This is the same position that base class specifiers occupy in
C++, but I think that ``our'' extension will fit before the colon.)


Lars Mathiesen (U of Copenhagen CS Dep) <thorinn@diku.dk> (Humour NOT marked)
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