C++ libraries can optimize smaller strings and store them on the stack. It's commonly known as short string optimization. I'm not sure how many libraries actual

C++ libraries can optimize smaller strings and store them on the stack. It's commonly known as short string optimization. I'm not sure how many libraries actually use SSO, but I think the three major vendors use something similar. https://stackoverflow.com/questions/10315041/meaning-of-acronym-sso-in-the-context-of-stdstring/10319672 https://stackoverflow.com/questions/10315041/meaning-of-acro... https://stackoverflow.com/questions/21694302/what-are-the-mechanics-of-short-string-optimization-in-libc https://stackoverflow.com/questions/21694302/what-are-the-me...