std::span<T,Extent>::end, std::span<T,Extent>::cend

Since C++20

Returns an iterator to the element following the last element of the span.

# Declarations

constexpr iterator end() const noexcept;

(since C++20)

constexpr const_iterator cend() const noexcept;

(since C++23)

# Return value

Iterator to the element following the last element.

# Example

#include <iostream>
#include <span>
 
void print(std::span<const int> array)
{
    std::cout << "array = ";
    for (auto it = array.begin(); it != array.end(); ++it)
        std::cout << *it << ' ';
    std::cout << '\n';
}
 
void set_first_element(std::span<int> sp, int new_value)
{
    if (!sp.empty())
    {
        std::cout << "old *begin = " << *sp.begin() << '\n';
        *sp.begin() = new_value;
        std::cout << "new *begin = " << *sp.begin() << '\n';
    }
}
 
int main()
{
    int array[]{1, 3, 4, 5};
    print(array);
    set_first_element(array, 2);
    print(array);
}

# See also