What is the difference between datatypes and modifiers in c language?

Answer 1

For example 'int' is a data-type, 'short', 'long', 'signed' and 'unsigned' are modifiers, 'extern', 'auto', 'static', 'register' are storage-classes.

The declarations go like this:

storage-class modifiers data-type identifier

example:

static unsigned short int x;