What are pointers in C++?

What are pointers in C++?

Pointers are variables that store the memory address of another variable. They are used for dynamic memory allocation and to manipulate data directly.

How do I declare a pointer?

You declare a pointer by using the asterisk (*) symbol. For example, int *ptr; declares a pointer to an integer.

Can you explain pointer arithmetic?

Pointer arithmetic allows you to perform operations on pointers, such as incrementing or decrementing them to navigate through an array.

What are the common mistakes with pointers?

Common mistakes include dereferencing null or uninitialized pointers, memory leaks from not freeing allocated memory, and pointer type mismatches.