Geert Fannes wrote:
[... example code elided ...]
> Unfortunately, this code duplicates the content values of the matrix, it
> has a copy inside the @columns and one inside the @rows and these need
> to be maintained so they stay the same, which is programming and
> execution overhead.

What does your C/C++ program do to get around this difficulty?

-- 
-- Jim Weirich       jweirich / one.net      http://onestepback.org
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"Beware of bugs in the above code; I have only proved it correct,
not tried it." -- Donald Knuth (in a memo to Peter van Emde Boas)