Assignment from initializer lists in xsemantics

[SylvainCorlay]

Since we have nested initializer list constructors for containers, having an overloaded assignment operator with the same nested initializer list would probably make sense.

[JohanMabille]

I agree with having such an operator. However, this operator should be in xcontainer. Assignment operators in xsemantics should be mathematical assignments only.

[SylvainCorlay]

Woudn't it prevent to assign an initializer list to an xview?

[JohanMabille]

xview can provide this operator too.

After more thoughts on that, which interface should provide the assignment from initializer lists depends on whether we want to provide computed assignment from initializer list. If so, we can consider initializer lists as a specific shortcut for xexpression, and all assignment operators should be provided by the semantic classes. Otherwise, there should be a simple assignment operator in container and view classes.

[wolfv]

I have just added a initializer from a C array to xtensor fixed -- therefore I am not sure how that would play with an initializer_list assign in the semantics.

However, it would still be cool to be able to use initializer_list with xview.