Pointers in C++ are powerful and versatile variables that store memory addresses. They allow direct manipulation of memory, dynamic memory allocation, and efficient access to data structures. Here are some basics of pointers in C++:
Declaration: Pointers are declared using the asterisk (*) symbol followed by the data type of the variable they will point to. For example:
int *ptr; // Pointer to an integer float *ptr2; // Pointer to a float
Initialization: Pointers can be initialized with the address of another variable using the address-of operator (&). For example:
int num = 10; int *ptr = # // Pointer ptr now holds the address of num
Dereferencing: Dereferencing a pointer means accessing the value stored at the memory address it points to. It is done using the dereference operator (*) followed by the pointer variable. For example:
That is all.
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