std::initializer_list<T>::size

size_type size() const noexcept;

constexpr size_type size() const noexcept;

Returns the number of elements in the initializer list, i.e. std::distance(begin(), end()).

Parameters

(none).

Return value

the number of elements in the initializer list.

Complexity

Constant.

Example

#include <initializer_list>
int main() { static_assert(std::initializer_list{1,2,3,4}.size() == 4); }