2D arrays: are all elements in a 2d array guarenteed to be contiguous?

Paul

See topic;

Context:
Passing arrays around in a MPI system(Message Passing Interface-
Parallel Program crap)

Thanks much!
-Paul

Jul 22 '05 #1

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1230

Jack Klein

On Tue, 23 Nov 2004 22:21:29 -0800, Paul <un******@rmci.net> wrote in
comp.lang.c++:

See topic;
Don't do that. There are some newsreaders still in wide use that do
not show the subject line while displaying bodies.
Context:
Passing arrays around in a MPI system(Message Passing Interface-
Parallel Program crap)
The context is immaterial.
Thanks much!
-Paul

In any case, the answer is no, there is no such guarantee, because
there is no such thing as a two (or higher) dimensional array in C++.
There are arrays of arrays, but the behavior is not defined for
accessing them as a single contiguous array with a type other than
unsigned char.

--
Jack Klein
Home: http://JK-Technology.Com
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Jul 22 '05 #2

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