std::extents<IndexType,Extents...>::rank_dynamic - cppreference.com (original) (raw)

| static constexpr rank_type rank_dynamic() const noexcept; | | (since C++23) | | ----------------------------------------------------------- | | ------------- |

Returns the number of dynamic dimensions in extents.

[edit] Parameters

(none)

[edit] Return value

The number of dynamic dimensions.

[edit] Example

#include #include   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:

[edit] See also

| | returns the static rank of an extents (public static member function) [edit] | | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | | obtains the number of dimensions of an array type (class template) [edit] |