Question

What is the difference between

char str1[32] = '\0'; 

and

char str2[32] = ''; 

Answer 1

Since you already declared the sizes, the two declarations are exactly equal. However, if you do not specify the sizes, you can see that the first declaration makes a larger string:

char a[] = 'a\0'; char b[] = 'a';  printf('%i %i\n', sizeof(a), sizeof(b)); 

prints

3 2 

This is because a ends with two nulls (the explicit one and the implicit one) while b ends only with the implicit one.