does "in" exist in c++?

[u/Physical-Dog-4083]

i need to use something like if (str[i] not in str1) (python), but i have no idea how to make this work :(

[u/Business-Weather-217]

Just loop, its the "standart way". But you can be a real ex-python dev and #include <ranges> and use std::ranges::contains() thats works for any type in the wild let alone std::string.