[cfe-dev] PTH for C++

[Ted Kremenek]

Quick clarification: PTH is not dead at all, and is currently being actively used by clang to support precompiled headers for C++/Objective-C++.

As Nico points out, Argyrios is working on PCH support for C++, but even when that is in place PTH isn't necessarily going away.  It is extremely useful for doing performance analysis work on the frontend, as it allows one to analyze the timings of parsing/semantic analysis by removing most of the time used for lexing.

On Jun 28, 2010, at 2:57 PM, Nico Weber wrote:

> Hi,
> 
>> I wanted to ask about the existing PTH support in clang, and how well
>> it works for C++.
> 
> I believe PTH is dead and PCH is what's used these days. See
> http://clang.llvm.org/docs/UsersManual.html#precompiledheaders .
> 
> PCH support for C++ isn't there yet, but Argyrios is working on it.
> 
> Nico
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