Remove character from array where spaces and punctuation marks are found [duplicate]

Answer 1

Edit: the answer is no longer relevant now that the OP has edited the question. Leaving up for posterity's sake.

If you're wanting to add a null character, use '\0'. If you're wanting to use a different character, using the appropriate character for that. You can't assign it nothing. That's meaningless. That's like saying

int myHexInt = 0x;

or

long long myIndeger = L;

The compiler will error. Put in the value you wanted. In the char case, that's a value from 0 to 255.