// sud not use in c++

In C++, a raw pointer is a type of pointer that holds the memory address of another
variable. It is called a "raw" pointer because it doesn't automatically manage the 
memory it points to, unlike smart pointers.

Here is an example of how to use a raw pointer in C++:

Copy code
int x = 5;
int* ptr = &x;  // ptr is a raw pointer that stores the memory address of x
*ptr = 6;       // change the value of x to 6 through the pointer
std::cout << x; // output: 6

In this example, the variable ptr is a raw pointer that holds the memory address 
of the variable x. The * operator is used to dereference the pointer and access
the value stored at that memory address.

It's important to note that when using raw pointers, the developer is responsible 
for allocating and deallocating memory manually, which can lead to memory leaks if
not done correctly. It is recommended to use smart pointers instead.