Tests using pointer operations on a data structure to evaluate its members.

test_pointer_op.c

/**
 * @brief Tests using pointer operations on a data structure to evaluate its members.
 * 
 * @author pavl_g
 */
#include <stdio.h>

struct Test {
  int x;
  int y;
  int z;
};

int main() {
    struct Test test;
    int* ptr = (int*) &test;
    *(ptr) = 2;
    *(ptr+1) = 3;
    *(ptr+2) = 5;
    printf("%lld\n", (test.x));
    printf("%lld\n", (test.y));
    printf("%lld\n", (test.z));
    printf("%lld\n", *((int*) &test));
    printf("%lld\n", &(test.x));
    printf("%lld\n", &(test.y));
    printf("%lld\n", &(test.z));
    return 0;
}

Output:

/tmp/DkO3Sh7ycx.o
2
3
5
2
140731634115948
140731634115952
140731634115956