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Re: Bridging the new C/C++ grok....() impedance mismatch
On 6 Jul, 2004, at 12.00, Mark Mitchell wrote:
Ziemowit Laski wrote:
No. You could do that, but it would be inefficient; better just to
create the data structures you want in the first place... (Or, if
you really want to be a hero, merge the C and C++ front ends, so
that you don't have to be trying to talk to two front ends...)
Hmm, that's tempting... by "merge the C and C++ front-ends",
hopefully you mean "tweak the C++ front-end to also accept C"? Most
of that work should be fairly trivial, me thinks; the tricky part
will be in handling areas where C++ and C99 differ.
Yes, exactly. And those parts are not terribly hard; for example, the
differing pointer conversion rules should just require loosening a few
tests in C++. Adding K&R support is one of the nastier bits. It's
months of work, but not years.
Having a unified front-end would definitely make my life _way_
easier, but I'm wondering if this is doable in the 3.5 time frame.
What do you think?
Sadly, no, I don't think that's possible.
Yeah, I agree...
However, I'm actually opposed to trying to abstract away more bits
from the two front ends into c-common.c with more langhooks back into
the front ends; to me, that effort should instead go into adding C
support to cc1plus.
That's a reasonable stance to take once we agree to move forward with C
support in cc1plus; prior to that point, however, additional hooks may
be unavoidable.
--Zem
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