Re: [boost] vc_8 and 1.33.1 [regex]

From: George M. Garner Jr. (gmgarner_at_[hidden])
Date: 2005-12-12 16:12:37

John,

> and in any case each element in
> the array is 8-bytes (32-bit pointers) or 16-bytes (64-bit pointers), so 
> the
> alignment and size must be a multiple of 8 even if there are an odd number
> of elements.

Yes.  You're right.  I missed that.  In any event the sizeof operator is 
documented to be aligned on WORD boundaries and your expression is expressly 
documented to work. 
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vclang/html/_pluslang_sizeof_operator.asp.

In any event, the specific line that is generating the warning is the 
following:

BOOST_ASSERT(id < sizeof(masks) / sizeof(masks[0]));

Since the following code does not generate this warning I will need to dig 
further into the boost assert macro to answer the question:

if(id < sizeof(masks) / sizeof(masks[0]))
    return masks[id];
return masks[0];

Regards,

George.