Re: pool_allocator problems on VC7.1 (real release)

From: John Harris (john.harris_at_[hidden])
Date: 2003-04-23 09:01:21

--- In Boost-Users_at_[hidden], scleary_at_j... wrote:
> > The pool code about which the following warnings complain:
> > 
> > const size_type num_chunks = total_req_size / partition_size +
> >     static_cast<bool>(total_req_size % partition_size);
> > 
> 
> The cast is intentional.  The intent is to add one if the result of 
the
> modulus is non-zero.  I don't know why the compiler is producing 
warnings,
> since I'm using an explicit cast.
> 

It's complaining, I think, because of the mixing of bool and size_t 
in the same calculation.  I verified that it works correctly, 
however.  I was afraid that num_chunks would be 0 or 1 only, but that 
is not the case.  So no really bad problem here.

> > Another test I tried was a map<string,string>, actually declared 
like 
> > this:
> 
> I'm having a hard time deciphering the compiler errors (I'm not 
used to MSVC
> errors), but it looks like it might be a problem in the STL.  Have 
you tried
> this with STLPort?
> 

No.  I want to stick with the standard STL.  Which, I hope, is pretty 
solid by now in VC7.1.  It's changed drastically since VC6.x.

> Is MSVC available for download for non-MSDN subscribers?  If so, I 
can
> download it and try to get it working.

No.  You have to have a universal subscription to get to it.  Maybe 
the SourceForge compiler farm has one.

Thanks for your reply.  It'd be awesome if I could have my own 
separate allocator for my maps.

jh