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What is Pointer operator * in C++?
C++ provides two pointer operators, which are Address of Operator (&) and Indirection Operator (*). A pointer is a variable that contains the address of another variable or you can say that a variable that contains the address of another variable is said to "point to" the other variable. A variable can be any data type including an object, structure or again pointer itself.
The indirection Operator (*), and it is the complement of &. It is a unary operator that returns the value of the variable located at the address specified by its operand. For example,
Example
#include <iostream> using namespace std; int main () { int var; int *ptr; int val; var = 3000; // take the address of var ptr = &var; // take the value available at ptr val = *ptr; cout << "Value of var :" << var << endl; cout << "Value of ptr :" << ptr << endl; cout << "Value of val :" << val << endl; return 0; }
Output
When the above code is compiled and executed, it produces the following result −
Value of var : 3000 Value of ptr : 0xbff64494 Value of val : 3000
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