#include <stdio.h>
#include <string.h>
#include <stdlib.h>
 
struct A;
 
typedef void (*func_t)(struct A*);
 
struct A
{
    func_t functionPointerTable[10];
    int value;
};
 
void print_stdout(struct A* a)
{
    printf("stdout: %d\n", a->value);
}
 
void print_stderr(struct A* a)
{
    fprintf(stderr, "stderr: %d\n", a->value);
}
 
int main()
{
    struct A myA = { {print_stdout, print_stderr}, 4 };
 
    myA.functionPointerTable[0](&myA);
    myA.functionPointerTable[1](&myA);
    return 0;
}
 
 

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