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digitalmars.D.announce - columnar struct storage template

If you have an array of structs that is primarily accessed by columns (the 
same member in each item) rather than by rows (all members in a given item) 
it can be faster to store the members each in there own array. The Columns 
template automates this for POD struct types.

http://www.dsource.org/projects/scrapple/browser/trunk/columns/columns.d
Dec 13 2008