Justin Riddell b81761068b Check range_begin is dereferenceable (#3964) ...

Fixes issue #3839
An Eigen 3.4 2x2 matrix has a begin member function that returns void
Be more strict checking that the result of calling *begin() is valid
See input_or_output_iterator concept notes about void

2024-05-20 16:11:07 -07:00

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fmt

Check range_begin is dereferenceable (#3964)

2024-05-20 16:11:07 -07:00