Empty character constant

1. How to use empty character constant in C?
2. What is \0 in C?
3. Is there an empty character in C?
4. What is the char value for empty string?

How to use empty character constant in C?

To terminate C-style string use null character '\0'.

What is \0 in C?

\0 is zero character. In C it is mostly used to indicate the termination of a character string. Of course it is a regular character and may be used as such but this is rarely the case. The simpler versions of the built-in string manipulation functions in C require that your string is null-terminated(or ends with \0 ).

Is there an empty character in C?

You can use c[i]= '\0' or simply c[i] = (char) 0 . The null/empty char is simply a value of zero, but can also be represented as a character with an escaped zero.

What is the char value for empty string?

An empty string is a string instance of zero length, whereas a null string has no value at all. An empty string is represented as "" . It is a character sequence of zero characters.