i'v been reading the tutorials on this website until i got to lesson 9: C Strings. it mentions that single characters cannot be passed into functions. the function is expecting char*. what is that? i'v read all the tutorials before it and am pretty sure that none of them mention anything about char*. i know from the pointers tutorial that *char is used to declare pointers, and to access the actual memory address. so what does char* do?