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std::initializer_list<T>:: size

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

Obtains the number of elements in the initializer list.

Contents

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() {}