On Monday, 1 June 2015 16:09:13 UTC+2, TIANJIAO SUN wrote:
>
> /.../
> Can someone shed some light on why it is done this way? Thanks vm.
>

I think it's mostly because people have been working with contiguous arrays 
(e.g. NumPy arrays).
Even though multidimensional arrays in C offer great flexibility, the 
associated pointer
indirection often makes it hard/impossible for compilers to do all their 
optimizations
(e.g. autovectorization etc.).

If you have a use case for pointer-to-potiner-to... type of arrays in C you 
may want to introduce a
keyword argument to ccode enabling this behaviour.

Note that you may want to base your work on this PR: 
https://github.com/sympy/sympy/pull/9314

Best,
Björn

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