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