std::initializer_list<T>::size (3) - Linux Manuals
std::initializer_list<T>::size: std::initializer_list<T>::size
NAME
std::initializer_list<T>::size - std::initializer_list<T>::size
Synopsis
size_type size() const noexcept; (since C++11)
constexpr size_type size() const noexcept; (since C++14)
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