Extracting bytes in C

Question

I\'m making a program in C. I am to extract bytes. un8 extractbyte (int r, int pos) should return byte number pos from number r. As example, I use as input: <

Answer 1

#include 

char extractbyte(int number, int v) {
    char *x=(char *)&number;
    return x[3-v];
}

int main() {

    int n=0x7788aabb;
    int i;
    for (i=0; i<4; i++) {
        printf("%d) %x\n",i,(unsigned char)extractbyte(n,i));
    }
    return 0;
}