Re: [Boost-users] [release] Boost 1.62.0 Release Candidate 1

Subject: Re: [Boost-users] [release] Boost 1.62.0 Release Candidate 1
From: Edward Diener (eldiener_at_[hidden])
Date: 2016-09-27 22:14:03

On 9/27/2016 9:24 PM, Marshall Clow wrote:
>
>
> On Mon, Sep 26, 2016 at 5:52 PM, Marshall Clow <mclow.lists_at_[hidden]
> <mailto:mclow.lists_at_[hidden]>> wrote:
>
>     On Mon, Sep 26, 2016 at 7:36 AM, Rene Rivera <grafikrobot_at_[hidden]
>     <mailto:grafikrobot_at_[hidden]>> wrote:
>
>         The release candidates for the 1.62.0 release are now available at:
>
>
>     [snip]
>
>
>
>     Now to run some tests....
>
>     -- Marshall
>
>
> The test "vmd/test/test_doc_modifiers_return_type.cpp" hangs clang.
> Reported as https://llvm.org/bugs/show_bug.cgi?id=30546

Evidently clang runs out of memory. Note that with VC++ and gcc the test 
passes.

I don't know why clang would run out ot memory while VC++ and gcc do not 
but I have not queried the clang mailing list further about it. An 
educated guess is that clang calculates some fixed size for the 
preprocessor and when macro expansions cause that fixed size to overrun 
you get an out of memory condition. I can hardly believe that the 
preprocessor is really running out of virtual memory, no matter how 
complicated the preprocessor code gets in VMD.