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 are two ways to do the same instruction, that is, an empty string. The first way is to allocate an empty string on static memory:

char* my_variable = "";

or, if you want to be explicit:

char my_variable = '\0';

The way posted above is only for a character. And, the second way:

#include 
char* my_variable = strdup("");

Don't forget to use free() with this one because strdup() use malloc inside.