One of the most common applications for using function pointers is in task schedulers. Every embedded system contains some type of task scheduler whether it is a simple round robin loop or a state of ...

And being pointers, we can pretty much treat them like any other pointer. Passing Registers to Functions To a pointer, it doesn’t matter what kind of memory it is pointing to.

So read on! Function Pointers In general, function pointers aren’t any more mysterious than data pointers: the main difference is that one references variables and the other references functions.

I'm trying to cast my function to an int, add an offset, and cast it back to a function pointer (I don't plan on calling the pointers).

IIRC C++ does not allow methods to be passed as function pointers. if b () were outside a class (a global function) it could be passed safely. Static methods might also be callable, but I'm not sure.

VTABLE and Pointers to Functions in C Even though it’s called a “table,” the VTABLE isn’t typically implemented in C as an array but rather as a struct of pointers to the virtual functions, such as ...

When using function pointers, though, it is always a good idea to first verify that the referenced location in memory is not NULL and does exist within the system. Function pointers can be very ...

A callback is a function that is executed through a pointer where the function being pointed to contains application specific code. Callbacks are normally passed into a function and provides the ...