Thread: A doubt regarding FILE * pointer

Hello everyone,

While learning C File I/O I tried the following code :

Code:

#include<stdio.h>

int main()
{
        FILE *fp;
        fp=fopen("source.txt","rb");
        printf("fp = %p\n",fp++);
        printf("fp = %p\n",fp);
        return 0;
}

#gcc prg.c
#./a.out
Gives the following output :

fp = 0x8e2a008
fp = 0x8e2a09c

On incrementing fp and printing the values there is a difference of 0X94 or 148. How does the difference come to 148?

Thank you.