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// { dg-do run }
// Test to see that primary bases are selected correctly.
// Origin: Mark Mitchell <mark@codesourcery.com>
#if defined (__GXX_ABI_VERSION) && __GXX_ABI_VERSION >= 100
// S1 is a nearly-empty base.
struct S1
{
virtual void f ()
{
}
};
// S2 is a dynamic, but not nearly-empty, base.
struct S2
{
virtual void g ()
{
}
int i;
};
// S1 should be the primary base.
struct T1 : public S1, public S2
{
};
// S2 should be the primary base.
struct T2 : public S2, public S1
{
};
// S2 should be the primary base.
struct T3 : virtual public S1, public S2
{
};
// S1 should be the primary base.
struct T4 : virtual public S1, virtual public S2
{
};
// Check that Y is the primary base for X. Otherwise, return N.
#define CHECK_PRIMARY_BASE(X, Y, N) \
{ \
X x; \
if ((void*) &x != (void *) (Y*) (&x)) \
return N; \
}
int main ()
{
CHECK_PRIMARY_BASE (T1, S1, 1);
CHECK_PRIMARY_BASE (T2, S2, 2);
CHECK_PRIMARY_BASE (T3, S2, 3);
CHECK_PRIMARY_BASE (T4, S1, 4);
}
#else /* !(defined (__GXX_ABI_VERSION) && __GXX_ABI_VERSION >= 100) */
int main ()
{
}
#endif /* !(defined (__GXX_ABI_VERSION) && __GXX_ABI_VERSION >= 100) */
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