Changing a variable from inside a function.
One of the most confusing topics for beginners. The book explains how arrays and pointers are intimately related, how array indexing works via pointer arithmetic, and the crucial differences between them. Changing a variable from inside a function
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Kanetkar provides a detailed explanation of how arithmetic operations (addition, subtraction) work on pointers. Unlike regular integers, incrementing a pointer moves it to the next memory address based on the type of data it points to. D. Pointers and Arrays Pointers and Arrays