std::initializer_list<T>::size

From cppreference.com
Utilities library
size_type size() const noexcept;
(since C++11)
(constexpr since C++14)

Obtains the number of elements in the initializer list.

Parameters

(none)

Return value

std::distance (begin( ), end( ) )

Complexity

Constant

Example

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