Re: [Boost-users] generate structs with all combinations of members from a given struct

Subject: Re: [Boost-users] generate structs with all combinations of members from a given struct
From: Larry Evans (cppljevans_at_[hidden])
Date: 2010-02-10 08:09:33

On 02/09/10 16:12, Hicham Mouline wrote:
[snip]
> I have another problem for now.
> 
> PP processing is starting to be slow, I need help to optimize it. Attached
> in the PP code.
> 
> Also, in the above, all the Ss need to be generated only once.
> However, in     multi_array<S..., N>, the N depends on the translation unit.
> I will have like 100 translation units, each with a different N.
> 
> If I were to include the PP code to generate the Ss in each of the 100 trs,
> it would repeat the preprocessing uselessly.
> I need to run the first part of the PP just once, then  the 2nd part of the
> PP that generates the multi_arrays for each of the 100 tr units.
> 
> Is this possible?

What about precompiled headers? Microsoft provides them:

http://msdn.microsoft.com/en-us/library/szfdksca(VS.71).aspx

as well as gcc:

http://gcc.gnu.org/onlinedocs/gcc/Precompiled-Headers.html

HTH.

-Larry