📘 Lesson · Lesson 54

Pointers in C

What is a Pointer?

💡 Note

A pointer is a variable that stores the memory address of another variable.

Example

#include <stdio.h>
int main() {
    int x = 10;
    int *p = &x;       // p stores address of x
    printf("Value: %d\n", *p);   // dereference: 10
    printf("Address: %p\n", p);
    return 0;
}

Output:
Value: 10 Address: 0x7ffe...

Key Operators

&x gives the address of x.
*p gives the value stored at that address (dereference).

Summary

A pointer holds an address; & gets an address, * reads the value there.

Pointer क्या है?

💡 Note

Pointer एक variable है जो दूसरे variable का memory address रखता है।

Example

#include <stdio.h>
int main() {
    int x = 10;
    int *p = &x;       // p, x का address रखता है
    printf("Value: %d\n", *p);   // dereference: 10
    printf("Address: %p\n", p);
    return 0;
}

Output:
Value: 10 Address: 0x7ffe...

मुख्य Operators

&x x का address देता है।
*p उस address पर रखी value देता है (dereference)।

सारांश

Pointer address रखता है; & address देता, * वहाँ की value पढ़ता है।

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