Perhaps they're not in the standard library, but they're readily available on Boost, POCO and many other well known mature libraries. Check the Boost C++ strin

Perhaps they're not in the standard library, but they're readily available on Boost, POCO and many other well known mature libraries. Check the Boost C++ string algorithms library. https://www.boost.org/doc/libs/1_74_0/doc/html/string_algo/usage.html#id-1.3.3.5.9 https://www.boost.org/doc/libs/1_74_0/doc/html/string_algo/u...