boostorg / boostorg/multi_array
Performance issue on resize
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描述
When I use `boost::multi_array` with `boost::fortran_storage_order()`, and I want to `.resize` by only the latest (rightmost) dimension, the current implementation is a nested `N` function call (`std::copy`), one by dimension.
The same functionality can be reached with one `std::copy` on the storage.
This minimal example shows the problem:
https://godbolt.org/z/GWbxcM14h
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