How does one represent the empty char?

Question

I\'m currently writing a little program but I keep getting this error when compiling

error: empty character constant

I realize i

Answer 1

There is no such thing as the "empty character" ''.

If you need a space character, that can be represented as a space: c[i] = ' ' or as its ASCII octal equivalent: c[i] = '\040'. If you need a NUL character that's c[i] = '\0'.