The length of the sequences to compare is the smaller of size() and other.size().

The function compares the two strings as if by calling char_traits<char>::compare(to_string().data(), v.data(), rlen). This means the comparison is performed with percent-decoding applied to the current string.

Negative value if this string is less than the other character sequence, zero if the both character sequences are equal, positive value if this string is greater than the other character sequence