C programming question

[Juan J. Martínez]

El lun, 04-04-2005 a las 11:43 -0700, Matt escribió:
> [...]
> Can someone break down these declarations (if that's what they are)?  Is 
> this a form of typecasting?  Thanks for your help.

Those are declarations of pointers to functions.

/* real function */
void dumb(int a) { return a; }
...

/* here follows a declaration of func pointer */
int (*func_ptr)(int);
int a;

/* assign it */
func_ptr=dumb;

/* use it */
a=func_ptr(123);

Any good book about C should cover this. Look for OOP in C also, it's
frequent use pointers to functions + structs to add classes to C.

regards,

Juanjo

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