On Tue, Nov 27, 2012 at 2:20 PM, Chris Lattner <clatt...@apple.com> wrote: > On Nov 27, 2012, at 8:00 AM, Diego Novillo <dnovi...@google.com> wrote: >> I admit that I'm partly fishing here, but my proposal is based on the >> following: >> >> * The implementation of PCH in GCC is atrocious and hard to maintain. >> * The next C++ standard is likely to define modules >> (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2012/n3347.pdf) >> * The user-base for PCH is negligibly small (here's where I'm mostly >> guessing). >> * PCH is absolutely useless for C. > > PCH is used extensively in Objective-C code and many C++ applications that > also build for windows. I'm not sure how important these communities are > though...
Ah, thanks. I had forgotten about obj-c. I'm not sure how much usage this feature gets and it doesn't seem like it would be easy to find out (other than do a release without it and wait for the fan mail ;) Diego.
