This is the mail archive of the
gcc-patches@gcc.gnu.org
mailing list for the GCC project.
Re: [PATCH][C++] Fix PR29433, make C++ use a lot less time/memory
- From: Gabriel Dos Reis <gdr at integrable-solutions dot net>
- To: Mark Mitchell <mark at codesourcery dot com>
- Cc: Richard Guenther <rguenther at suse dot de>, gcc-patches at gcc dot gnu dot org, mrs at apple dot com
- Date: 01 Dec 2006 17:22:43 +0100
- Subject: Re: [PATCH][C++] Fix PR29433, make C++ use a lot less time/memory
- References: <Pine.LNX.4.64.0611281700370.30849@zhemvz.fhfr.qr> <456FD641.3070409@codesourcery.com>
Mark Mitchell <mark@codesourcery.com> writes:
[...]
| template <int I>
| void f() {
| ... C<I> ... // error here
| }
|
| and gets an error about "C<J>" that's very confusing -- especially if
| there's another "J" in scope. I like the EDG approach of saying "C<#1>
| [#1 = I]" in this kind of situation.
We already have the de Bruijn notation for template parameters in
place, so if that is needed, it should be no-brainer. A small issue
is that our canonical notation includes both the level and the index.
We would just strip out the level if not needed, e.g. when it is 1.
-- Gaby