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Get offsets of struct members using offsetof
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
typedef struct
{
int x;
short y[3];
long long z;
} data_t;
int main(int argc, char* argv[])
{
printf("x %d\n", offsetof(data_t, x));
printf("y %d\n", offsetof(data_t, y));
printf("y[1] %d\n", offsetof(data_t, y[1]));
printf("z %d\n", offsetof(data_t, z));
return EXIT_SUCCESS;
}
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