How do I declare and initialize pointers in C?

How do I declare and initialize pointers in C?

To declare a pointer in C, you use the syntax type *pointerName;. For example, int *ptr; declares a pointer to an integer.

How do I initialize that pointer?

You can initialize a pointer by assigning it the address of a variable using the & operator. For example, if you have int a = 10;, you can initialize the pointer with ptr = &a;.

What if I want to allocate memory for the pointer?

You can use the malloc function to allocate memory dynamically. For example, ptr = (int *)malloc(sizeof(int)); allocates memory for an integer.

How do I free the memory allocated for the pointer?

You should use the free function to release the allocated memory. For example, free(ptr); frees the memory that was allocated.