final_project/Interface.cpp
// convert string to lowercase to make input checks less tedious

convert string to lowercase to make input checks less tedious
convert string to lowercase to make input checks less tedious
void to_lower(std::string& str){
        for (char& c : str){
            c = std::tolower(c);
        }
    }
void to_lower ( std :: string & str ) { for ( char & c : str ) { c = std :: tolower ( c ) ; } }
convert string to lowercase to make input checks less tedious
convert string to lowercase to make input checks less tedious