Re: [cctbxbb] scitbx without numpy - still supported?

Hi, I may be digressing here but my understanding is that newer versions of boost no longer contain the boost/python/numeric.hpp file and therefore the scitbx/array_family/boost_python/numpy_bridge.hpp cannot compile with newer versions of boost. I'm making very tiny steps compiling with the VS2017 compiler on Windows which I believe is required for C++11 compliance. So far the problem seems that older versions of boost do not like this compiler and scitbx (or rather numpy_bridge.hpp) do not like newer versions of boost. I guess that if numpy_bridge.hpp was adapted to not #include that would solve the problem. Rob On 24/04/2018 17:05, Nicholas Devenish wrote:

Hi,

On Tue, Apr 24, 2018 at 4:10 PM, Nicholas Sauter mailto:[email protected]> wrote:

It was always the intention to support flex arrays in the absence of Numpy.  If there is some refactoring to be done, this principle should be preserved:  that Numpy is an optional rather than required dependency.

 Good to know - some of this code seems a little crusty (and I've found a couple of bugs just trying to verify that it still works correctly).

Not sure about the wording in your second sentence.  At the time we developed flex, branching was not a code development mechanism we used. Furthermore, not sure why you say Numpy is "exclusively" used in the flex constructors? Certainly there are numerous flex constructors that do not involve Numpy?

I meant a code branch e.g. "if", or a preprocessor "#ifdef" in this case.

I think I've gotten confused by some of the indirection in the class definitions - the top level only adds the numpy constructor, and then everything else is put in several levels down - and in some of my tests it looked like the numpy routine was mistakenly doing all of the construction (which ended in much the same results).

Nick

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