std::extents<IndexType,Extents...>::rank_dynamic
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std::extents
extents::rank_dynamic
static constexpr rank_type rank_dynamic() const noexcept;
(since C++23)
Returns the number of dynamic dimensions in extents.
Contents
[edit] Parameters
(none)
[edit] Return value
The number of dynamic dimensions.
[edit] Example
Run this code
#include <iostream> #include <mdspan> int main() { std::extents <int, 1, 2> e1; std::extents <int, 3, 4, std::dynamic_extent > e2(5); std::extents <int, std::dynamic_extent, 7, std::dynamic_extent > e3(6, 8); std::cout << e1.rank_dynamic() << ", " << e2.rank_dynamic() << ", " << e3.rank_dynamic() << '\n'; }
Output:
0, 1, 2