Re: [boost] mkl+boost problems

Subject: Re: [boost] mkl+boost problems
From: John B. Turpish (jbturp_at_[hidden])
Date: 2010-11-09 15:40:33

On Tue, Nov 9, 2010 at 11:46 AM, Kevin Heifner <heifnerk_at_[hidden]> wrote:
> On 11/9/2010 10:14 AM, Andrey Asadchev wrote:
> #ifdef P4
>
>> #undef P4 // mkl_types.h defines P4 macro which breaks MPL
>
> #endif
>
> That way if/when mkl_cblas.h fixes their #define it will not break your
> header.

I was under the impression that
#undef NEVER_WAS_DEFINED
was completely harmless, kind of like
delete NULL;