std::extents<IndexType,Extents...>::extent
Min standard notice:
Returns dynamic extent size of an extents at a certain rank index.
# Declarations
constexpr index_type extent( rank_type i ) const noexcept;
(since C++23)
# Parameters
i: The rank index to get the extent size of
# Return value
The dynamic extent size of an extents at a certain rank index.
# Example
#include <iostream>
#include <mdspan>
int main()
{
std::extents<int, 1, 2> e1;
std::extents<int, 3, std::dynamic_extent, std::dynamic_extent> e2(4, 5);
std::cout << e1.extent(0) << ", " << e1.extent(1) << '\n';
std::cout << e2.extent(0) << ", " << e2.extent(1) << ", " << e2.extent(2) << '\n';
}