[cctbxbb] flex and numpy caveats

[James Stroud]

On Apr 4, 2013, at 12:42 PM, James Stroud wrote:
> So, even if numpy-to-flex conversion catches wrongly [1] typed arrays, users still need to know which numpy dtypes to use for which flex constructors. Here is what I have determined:

I realized that it is possible that unqualified specifiers like "numpy.float", etc, may have different meanings on different systems. Therefore, I think a better (i.e. more explicit) mapping is
flex.bool : numpy.bool8
flex.int : numpy.int32
flex.long : numpy.int64
flex.float : numpy.float32
flex.double : numpy.float64
James
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