Jason Rhinelander 8657f3083a Fix eigen copying of non-standard stride values ... Some Eigen objects, such as those returned by matrix.diagonal() and matrix.block() have non-standard stride values because they are basically just maps onto the underlying matrix without copying it (for example, the primary diagonal of a 3x3 matrix is a vector-like object with .src equal to the full matrix data, but with stride 4). Returning such an object from a pybind11 method breaks, however, because pybind11 assumes vectors have stride 1, and that matrices have strides equal to the number of rows/columns or 1 (depending on whether the matrix is stored column-major or row-major). This commit fixes the issue by making pybind11 use Eigen's stride methods when copying the data.		2016-08-04 13:21:39 -04:00
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pybind11	Fix eigen copying of non-standard stride values	2016-08-04 13:21:39 -04:00