実験コード

#include <stdio.h>

struct DATA {
    int i1;
    int i2;
    int i3;
    char c1;
    char c2;
    char c3;
    double d1;
    double d2;
    double d3;
};

int main()
{
    struct DATA mydata;
    printf("address of i1 is %p\n", &(mydata.i1));
    printf("address of i2 is %p\n", &(mydata.i2));
    printf("address of i3 is %p\n", &(mydata.i3));
    printf("address of c1 is %p\n", &(mydata.c1));
    printf("address of c2 is %p\n", &(mydata.c2));
    printf("address of c3 is %p\n", &(mydata.c3));
    printf("address of d1 is %p\n", &(mydata.d1));
    printf("address of d2 is %p\n", &(mydata.d2));
    printf("address of d3 is %p\n", &(mydata.d3));

    printf("address of mydata is %p\n", &mydata);
}

実行結果

address of i1 is 0022FEF8
address of i2 is 0022FEFC
address of i3 is 0022FF00
address of c1 is 0022FF04
address of c2 is 0022FF05
address of c3 is 0022FF06
address of d1 is 0022FF08
address of d2 is 0022FF10
address of d3 is 0022FF18
address of mydata is 0022FEF8