Primary expression errorYou have to give arguments for the function. Just restating what the types are and such achieves abs...
Accepting Specific stringsFor one, your line 7 should be cin >> cat; But when I compile the program after that fix, there ar...
Compiling for linuxIf his code is at all demanding to compile, it won't go well in a virtual machine. Setting up a cro...
keypress / if (char c == 'd')Wouldn't using something like SDL make more sense for a task like this?