std::span<T,Extent>::data - cppreference.com

From cppreference.com

constexpr pointer data() const noexcept;

(since C++20)

Returns a pointer to the beginning of the underlying sequence.

Return value

data_

Example

#include <iostream>
#include <span>

int main()
{
    constexpr char str[] = "ABCDEF\n";
    
    const std::span sp{str};
    
    for (auto n{sp.size()}; n != 2; --n)
        std::cout << sp.last(n).data();
}

Output:

ABCDEF
BCDEF
CDEF
DEF
EF
F

See also