Operating system Development Series-explanation typedef void (*int_handler) ();

So I changed the idea to understand this typedef

Let's look at the general variable definition first:

int int//defines a variable of type int named Int. Char *c//defines a char-type pointer variable void (*FUN) (void) named C;//defines a function pointer named fun, with a return value of void, without arguments

After adding a typedef, it can be understood that the original variable name becomes the corresponding type name of itself

such as int represents the int type

C becomes char*.

Fun means "return value is void, function pointer without arguments" type

The key to understanding TypeDef is not to confuse typedef with # define Thinking

Operating system Development Series-explanation typedef void (*int_handler) ();