1 files changed, 123 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.old-deja/g++.other/dyncast1.C b/gcc/testsuite/g++.old-deja/g++.other/dyncast1.C
new file mode 100644
index 000000000..6feec30e6
--- /dev/null
+++ b/gcc/testsuite/g++.old-deja/g++.other/dyncast1.C
@@ -0,0 +1,123 @@
+// { dg-do run  }
+// Author: Alfred Miniarik <a8601248@unet.univie.ac.at>
+// test of dynamic_cast
+// runtime detecting of nonpublic
+// inheritance within a cast
+// and therefor failing with result 0.
+
+extern "C" void abort();
+extern "C" int printf (const char *, ...);
+
+static int errors = 0;
+void error(int i)
+{
+  printf("Error %i\n",i);
+  errors++;
+}
+
+// 1. downcast
+
+// 1.1. single inheritance case
+
+struct A {virtual ~A(){}};
+struct AA : A {};
+struct B : A {};
+struct BB : B {};
+class C : B {};
+struct D : C {};
+
+struct CC : B {};
+class DD : CC {};
+
+class CCC : protected B {};
+class DDD : protected CCC {};
+
+void 
+test01 ()
+{
+  D d;
+  if(dynamic_cast<D*> ((A*)&d)) error(1);
+  if(dynamic_cast<D*> ((B*)&d)) error(2);
+  if(&d != dynamic_cast<D*> ((C*)&d)) error(3); //counter example
+  if(dynamic_cast<C*> ((B*)&d)) error(4);
+	
+  DD dd;
+  if(dynamic_cast<DD*> ((A*)&dd)) error(5);
+  if(dynamic_cast<DD*> ((B*)&dd)) error(6);
+
+  DDD ddd;
+  if(dynamic_cast<DDD*> ((A*)&ddd)) error(7);
+  if(dynamic_cast<DDD*> ((B*)&ddd)) error(8);
+  if(dynamic_cast<CCC*> ((B*)&ddd)) error(9);
+}		
+
+// 1.2. multiple inheritance case
+// 1.2.1. all bases are public
+ 
+struct E : D, CC {};
+struct EE : CC, D {}; //Will search in reverse order.
+
+void 
+test02 ()
+{
+  E e;
+  if(dynamic_cast<E*> ((A*)(D*)&e)) error(10);
+  if(dynamic_cast<E*> ((B*)(D*)&e)) error(11);
+  if(&e != dynamic_cast<E*> ((C*)(D*)&e)) error(12); //counter example
+  if(&e != dynamic_cast<E*> ((B*)(CC*)&e)) error(13); //counter example
+  if((CC*)&e != dynamic_cast<CC*> ((B*)(CC*)&e)) error(14); //counter example
+  
+  EE ee;
+  if(dynamic_cast<EE*> ((A*)(D*)&ee)) error(15);
+  if(dynamic_cast<EE*> ((B*)(D*)&ee)) error(16);
+  if(&ee != dynamic_cast<EE*> ((C*)(D*)&ee)) error(17); //counter example
+  if(&ee != dynamic_cast<EE*> ((B*)(CC*)&ee)) error(18); //counter example
+  if((CC*)&ee != dynamic_cast<CC*> ((B*)(CC*)&ee)) error(19); //counter example
+}		
+
+// 1.2.2 one or more branches are nonpublic
+
+struct X : private BB, E {};
+struct Y : AA, private B {};
+
+class XX : BB, E {};
+
+void 
+test03 ()
+{
+  X x;
+  if(&x != dynamic_cast<X*>((B*)(CC*)(E*)&x)) error(20); //counter example
+  XX xx;
+  if(dynamic_cast<XX*>((B*)(CC*)(E*)&xx)) error(21);	
+  Y y;
+  if(dynamic_cast<Y*>((B*)&y)) error (22);
+  if(dynamic_cast<Y*>((A*)(B*)&y)) error (23);
+}
+
+// 2. crosscast
+
+struct J {virtual ~J(){}};
+struct K : CC, private J {}; 
+class KK : J, CC{};
+		
+void 
+test04 ()
+{
+  E e;
+  if(dynamic_cast<CC*> ((B*)(D*)&e)) error(24);
+  if((CC*)&e != dynamic_cast<CC*> ((C*)(D*)&e)) error(25); //counter example
+  K k;
+  if(dynamic_cast<J*> ((B*)&k)) error(26);
+  KK kk;
+  if(dynamic_cast<J*> ((CC*)&kk)) error(27);
+}
+
+int 
+main ()
+{
+  test01();
+  test02();
+  test03();
+  test04();
+  return errors ? 1 : 0;
+}