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#include <stdio.h>
#include <stddef.h>
typedef void (*FuncPtr)(void);
typedef struct {
int a;
FuncPtr func;
double b;
} MyStruct;
void myFunction(void) {
printf("Function called!\n");
}
int main() {
printf("Offset of a: %zu\n", offsetof(MyStruct, a)); // Should be 0
printf("Offset of func: %zu\n", offsetof(MyStruct, func)); // Should be sizeof(int)
printf("Offset of b: %zu\n", offsetof(MyStruct, b)); // Should be sizeof(int) + sizeof(FuncPtr)
// Example usage
MyStruct s;
s.func = myFunction;
s.func(); // Should print "Function called!"
return 0;
}
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