std::inplace_vector<T,N>::capacity - cppreference.com (original) (raw)

| static constexpr size_type capacity() noexcept; | | (since C++26) | | ------------------------------------------------ | | ------------- |

Returns the capacity of the internal (inplace) storage. Equivalent to: return N;.

[edit] Parameters

(none)

[edit] Return value

The maximum number of elements the container is able to hold.

[edit] Complexity

Constant.

[edit] Notes

Because each std::inplace_vector<T, N> is a fixed-capacity container, the value returned by capacity equals N (which is also the value returned by max_size()).

[edit] Example

#include   int main() { constexpr std::inplace_vector<int, 4> v1; static_assert(v1.capacity() == 4 && v1.max_size() == 4);   constexpr std::inplace_vector<int, 0> v2; static_assert(v2.capacity() == 0 && v2.max_size() == 0); }

[edit] See also

| | returns the maximum possible number of elements (public static member function) [edit] | | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | | returns the number of elements (public member function) [edit] | | | changes the number of elements stored (public member function) [edit] | | | checks whether the container is empty (public member function) [edit] | | | reserves storage (public static member function) [edit] |