Pointer Basics

• data_type *pointer_name;

• &variable (address-of operator)

• *pointer (dereference operator)

• Pointer Initialization

• Pointer Assignment

Pointer Arithmetic

• pointer++

• pointer--

• pointer + n

• pointer - n

• pointer1 - pointer2

Pointers and Arrays

• array_name

• array_name[index]

• *array_name

• *(array_name + index)

Pointers and Functions

• function_name(parameter_list)

• *function_pointer(parameter_list)

• return *pointer;

Dynamic Memory Allocation

• malloc()

  • void *malloc(size_t size);

• calloc()

  • void *calloc(size_t nmemb, size_t size);

• realloc()

  • void *realloc(void *ptr, size_t size);

• free()

  • free(pointer);