Dereferencing a pointer

Dereferencing a pointer means retrieving the actual data of the  pointer. Dereferencing a pointer can be done by writing pointer followed by *.

Example:

float x=25.15;
float *p;
p=&x;

Here p points address of x. Now we can retrieve the value of x as follows:
*p;

Code example:

#include<stdio.h>
int main()
{
    float x=25.15;
    float *p;
    p=&x;
    printf("value of x = %f",*p);
    return 0;
}

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