990525-2.c

this is a gcc file, you can download it and learn its usetility, for further detail please look at t

typedef struct {
    int v[4];
} Test1;

Test1 func2();

int func1()
{
    Test1 test;
    test = func2();

    if (test.v[0] != 10)
      abort ();
    if (test.v[1] != 20)
      abort ();
    if (test.v[2] != 30)
      abort ();
    if (test.v[3] != 40)
      abort ();
}

Test1 func2()
{
    Test1 tmp;
    tmp.v[0] = 10;
    tmp.v[1] = 20;
    tmp.v[2] = 30;
    tmp.v[3] = 40;
    return tmp;
}


int main()
{
    func1();
    exit (0);
}