# std::initializer_list<T>::size

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< cpp‎ | utility‎ | initializer list

size_type size() const noexcept; |  | (since C++11) (until C++14)
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

### Example

Run this code

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

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