Thread: Pointers

Hi everyone,

I learn type casting of pointers.

Could someone explain me why the last printf prints 0.00? I expect to print 10. What I am doing wrong?

Code:

#include <stdio.h>


int main()
{


    int a, *Pa;
    float b, *Pb;
    double c, *Pc;
    char d, *Pd;


    Pa = &a; // Pa points the address of a
    Pb = &b; // Pa points the address of b
    Pc = &c; // Pa points the address of b
    a = 10;
    b = 2.25;


    printf("The address of a is %d\n", Pa);
    printf("The value of a is %d\n", *Pa);
    printf("The address of Pa is %d\n", &Pa);


    // What is we want to assign the value of Pa to Pb? Pa is a variable of type int while Pb is a variable of type float
    // We have to use type-casting


    Pb = (float *)Pa;
    
    printf("The value of b is %.2f\n", *Pb); // Dereferencing Pb to read the value stored in the address the Pb pointer points


    return 0;
}