std::extents<IndexType,Extents...>:: static_extent

Returns static extent size of an extents at the rank index i . If the rank index i is a dynamic extent, returns std::dynamic_extent .

Parameters

Return value

The static extent size or std::dynamic_extent value.

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.static_extent(0) << ", " << e1.static_extent(1) << '\n';
    std::cout << (e2.static_extent(0) == std::dynamic_extent) << ", "
              << (e2.static_extent(1) == std::dynamic_extent) << ", "
              << (e2.static_extent(2) == std::dynamic_extent) << '\n';
}

1, 2
0, 1, 1

See also