Alias sets

[Mark Mitchell]

>>>>> "Richard" == Richard Henderson <rth@cygnus.com> writes:

    Richard> I don't think it's that unreasonable to ask for a
    Richard> function that just returns zero.  We already have a
    Richard> half-dozen other functions that absolutely must exist,
    Richard> even if empty...

I agree.  But, one issue here is that (as in the C/C++ case), you
might well want to have a function used by a simpler language (C),
that is piggy-backed on by a more complex language (C++).  With
function pointers, its easy to chain these things together; if they're
all functions called lang_get_alias_set it's not so easy.

--
Mark Mitchell                   mark@codesourcery.com
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