std::array<T,N>::front

Returns a reference to the first element in the container.

# Declarations

reference front();

(since C++11) (constexpr since C++17)

const_reference front() const;

(since C++11) (constexpr since C++14)

# Return value

Reference to the first element.

# Notes

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

# Example

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

# See also