1 files changed, 48 insertions, 0 deletions
diff --git a/clang/test/SemaObjCXX/objc-pointer-conv.mm b/clang/test/SemaObjCXX/objc-pointer-conv.mm
new file mode 100644
index 0000000..611b7bc
--- /dev/null
+++ b/clang/test/SemaObjCXX/objc-pointer-conv.mm
@@ -0,0 +1,48 @@
+// RUN: %clang_cc1 -fsyntax-only -verify -Wno-objc-root-class %s
+
+typedef const void * VoidStar;
+
+typedef struct __CFDictionary * CFMDRef;
+
+void RandomFunc(CFMDRef theDict, const void *key, const void *value);
+
+@interface Foo
+- (void)_apply:(void (*)(const void *, const void *, void *))func context:(void *)context;
+- (void)a:(id *)objects b:(id *)keys;
+@end
+
+@implementation Foo
+- (void)_apply:(void (*)(const void *, const void *, void *))func context:(void *)context {
+	id item;
+	id obj;
+    func(item, obj, context);
+}
+
+- (void)a:(id *)objects b:(id *)keys {
+    VoidStar dict;
+	id key;
+    RandomFunc((CFMDRef)dict, key, objects[3]);
+}
+@end
+
+@interface I
+- (void) Meth : (I*) Arg; // expected-note{{passing argument to parameter 'Arg' here}}
+@end
+
+void Func (I* arg);  // expected-note {{candidate function not viable: no known conversion from 'const I *' to 'I *' for 1st argument}}
+
+void foo(const I *p, I* sel) {
+  [sel Meth : p];	// expected-error {{cannot initialize a parameter of type 'I *' with an lvalue of type 'const I *'}}
+  Func(p);		// expected-error {{no matching function for call to 'Func'}}
+}
+
+@interface DerivedFromI : I
+@end
+
+void accept_derived(DerivedFromI*);
+
+void test_base_to_derived(I* i) {
+  accept_derived(i); // expected-warning{{incompatible pointer types passing 'I *' to parameter of type 'DerivedFromI *'}}
+  DerivedFromI *di = i; // expected-warning{{incompatible pointer types initializing 'DerivedFromI *' with an expression of type 'I *'}}
+  DerivedFromI *di2 = (DerivedFromI *)i;
+}