Re: [boost] [#pragma once]

Subject: Re: [boost] [#pragma once]
From: Edouard A. (edouard_at_[hidden])
Date: 2009-04-10 10:59:10

> Each one of them supports #pragma once.  Is there any reason to wrap
> this pragma within #ifdefs? Are there any compilers out there today
> that
> don't support this #pragma?

> Could we change this coding pattern so that it no longer looks like
> MSVC
> is being selfish?
> 
[Edouard A.] 

In addition #pragma once may be faster than #ifndef/#endif because the
compiler is not even going to open the file a second time to parse the
#ifndef/#endif.

ICC does support #pragma once as well.

http://software.intel.com/en-us/articles/cdiag1782/

-- 
EA