Web Reference: Nov 14, 2025 · A function pointer is a type of pointer that stores the address of a function, allowing functions to be passed as arguments and invoked dynamically. It is useful in techniques such as callback functions, event-driven programs. Here is how we can declare pointers. Here, we have declared a pointer p of inttype. You can also declare pointers in these ways. Let's take another example of declaring pointers. Here, we have declared a pointer p1 and a normal variable p2. Pointers are an extremely powerful programming tool. They can make some things much easier, help improve your program's efficiency, and even allow you to handle unlimited amounts of data. For example, using pointers is one way to have a function modify a variable passed to it.
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