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Creating Pointers in C++

A pointer is a variable that stores the memory address of another variable. Pointers are essential for dynamic memory management, passing data to functions efficiently, and creating complex data structures.

Syntax of Creating a Pointer

data_type *pointer_name = &variable_name;

Example: Declaring and Initializing a Pointer

#include <iostream>

int main() {
    int age = 40;
    int *ptr = &age;
    
    std::cout << "Memory Address of age: " << ptr << std::endl;
    return 0;
}

Explanation: ptr is a pointer that stores the address of age. Printing ptr outputs the address of age.

Key Takeaways

  • Pointers store memory addresses of other variables.
  • Use the & operator to assign a variable's address to a pointer.
  • They are fundamental in C++ for efficient memory management and data manipulation.
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