std::array<T,N>::front - cppreference.com

From cppreference.com

Returns a reference to the first element in the container.

If empty() is true, the behavior is undefined.

(until C++26)

If empty() is true:

(since C++26)

Reference to the first element.

Constant.

For a container c, the expression c.front() is equivalent to *c.begin().

The following code uses front to access the first element of a std::array<char, 4>:

#include <cassert>
#include <array>
 
int main()
{
    std::array<char, 4> letters{'a', 'b', 'c', 'd'};
    assert(letters.front() == 'a');
}

	access the last element (public member function) [edit]
	returns a reverse iterator to the end (public member function) [edit]
	returns an iterator to the beginning (public member function) [edit]
	direct access to the underlying contiguous storage (public member function) [edit]