In C the you need to read from right to left
char * lol;
lol is pointer to char
char const * lol;
lol is pointer to const char
char * const lol;
lol is const pointer to char
char const * const lol;
lol is const pointer ti const char
system("cls");// system ("clear");
Be portable! Use preprocessor to select command depending on platform (it's still better to not use shell commands at all).