Re: [C++ PATCH] Implementation of C++0x decltype

[Gabriel Dos Reis <gdr at cs dot tamu dot edu>]

Douglas Gregor <doug.gregor@gmail.com> writes:

| Hello all,
| 
| The attached patches (for gcc, cp, testsuite subdirs) implement the C+
| +0x "decltype" facility, which computes the declared type of an
| arbitrary expression. The latest standard wording, on which this
| patch is based, is available here:
| 
| 	http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2006/n2115.pdf
| 
| Decltype has not yet been voted into the C++0x working draft, but it
| has been approved by the C++ Evolution Working Group and has been
| extensively discussed in the Core Working Group, so it is relatively
| stable (only corner cases are likely to change). It's a highly-
| requested feature in the library writer community. This patch only
| makes decltype available when the experimental C++0x mode is enabled.
| 
| Tested i386-apple-darwin8.8.1, no regressions.
| 
| Okay for mainline?

Thanks for taking the time to implement this.

Procedural comments: Following the policy we all agreed on not so long
ago, I believe the implementation should be in only after adoption in
the WP (which is next meeting in Oxford, April 2007).

I realize I'm co-author of the proposal and you're just helping.
But, I believe the policy holds for everybody :-)


I'd send more technical comments later.

Thanks!

-- Gaby