Pointers in c++

 What is a pointer?

A pointer is a unique variable that holds the address of other variables. 

syntax or declaration of pointer ->  

pointer_type *pointer_name;

pointer_name = &variable_name;

example: 

int main () {

   int  v=10; 

  int *p=&v; // & sign means (address of) variable v

  cout<<p<<" is  the address of the variable"<<endl;

  cout<<*p<<endl; // prints the value using pointer

   return 0;

}