Why we need Pointer in Programme? tccicomputercoaching.com Any time you need to pass a data structure you need a pointer. You can pass simple data types (char, float, or int) but if you want to get a value back from a function more than just a return value, you need a pointer.
Where you wish to pass a large chunk of memory through a function argument. You would like to change a variable across files and one good practice is to send that variable as a pointer and get modified in called function. Linked lists, where the devices are getting attached and removed at run time. 1.
There are many advantages of pointers such as
They are used to save memory. When two references point to the same memory location. Can be used in the form of parameter passing.
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