Add support for conversions from a pointer-to-derived to a
pointer-to-base. Also, add overload ranking for pointer conversions
(for both pointer-to-void and derived-to-base pointer conversions).
Note that we do not yet diagnose derived-to-base pointer conversion
errors that stem from ambiguous or inacessible base classes. These
aren't handled during overload resolution; rather, when the conversion
is actually used we go ahead and diagnose the error.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@58017 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/SemaCXX/overload-call.cpp b/test/SemaCXX/overload-call.cpp
index 3036e67..1bd6496 100644
--- a/test/SemaCXX/overload-call.cpp
+++ b/test/SemaCXX/overload-call.cpp
@@ -185,3 +185,32 @@
quals_rank3(pq);
}
+// Test overloading based on derived-to-base conversions
+class A { };
+class B : public A { };
+class C : public B { };
+class D : public C { };
+
+int* derived1(A*);
+char* derived1(const A*);
+float* derived1(void*);
+
+int* derived2(A*);
+float* derived2(B*);
+
+int* derived3(A*);
+float* derived3(const B*);
+char* derived3(C*);
+
+void test_derived(B* b, B const* bc, C* c, const C* cc, void* v, D* d) {
+ int* d1 = derived1(b);
+ char* d2 = derived1(bc);
+ int* d3 = derived1(c);
+ char* d4 = derived1(cc);
+ float* d5 = derived1(v);
+
+ float* d6 = derived2(b);
+ float* d7 = derived2(c);
+
+ char* d8 = derived3(d);
+}