difference between declaring char variable with '' or "" in c

Question

what is the difference between

char name='chiheb';

char name="chiheb";

I'm also confused about how char can allow many characters .what is the difference then between string and char;

Answer 1

In the first declaration on object of the type char is initialized by a multi-byte integer character constant the value of which is implementation defined.

For the second declaration the compiler will issue a message that you are trying to convert a pointer to an integer because the string literal used as an initializer is converted to pointer to its first element of the type char *.

A valid declaration will look like for example

char name = "chiheb"[0]; // or some other used valid index

or

char name = *"chiheb";

or

char *name = "chiheb";