Web Reference: Nov 14, 2025 · One of the most useful applications of function pointers is passing functions as arguments to other functions. This allows you to specify which function to call at runtime. Instead of populating and cluttering your code with if-else constructs testing variables, you can code it so that it uses a function pointer, and then you can enable/disable features by changing/assigning the function pointer. Function pointers let you decide which function to run while the program is running, or when you want to pass a function as an argument to another function. Think of it like saving a phone number - the pointer knows where the function lives in memory, so you can "call" it later.
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