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typedef union
{
struct {int a; int b;} s;
double d;
} T;
int h (T *);
T g (T);
#if COMPILER != 1
h (T *x)
{
if (x->s.a != 0 || x->s.b != 1)
abort ();
}
#endif
#if COMPILER != 2
T
g (T x)
{
if (x.s.a != 13 || x.s.b != 47)
abort ();
x.s.a = 0;
x.s.b = 1;
h (&x);
return x;
}
#endif
#if COMPILER != 1
f ()
{
T x;
x.s.a = 13;
x.s.b = 47;
g (x);
if (x.s.a != 13 || x.s.b != 47)
abort ();
x = g (x);
if (x.s.a != 0 || x.s.b != 1)
abort ();
}
#endif
#if COMPILER != 2
main ()
{
f ();
exit (0);
}
#endif
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