1 files changed, 89 insertions, 0 deletions
diff --git a/test/SemaCXX/for-range-dereference.cpp b/test/SemaCXX/for-range-dereference.cpp
new file mode 100644
index 000000000000..bf3187da30e2
--- /dev/null
+++ b/test/SemaCXX/for-range-dereference.cpp
@@ -0,0 +1,89 @@
+// RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify %s
+struct Data { };
+struct T {
+  Data *begin();
+  Data *end();
+};
+
+struct NoBegin {
+  Data *end();
+};
+
+struct DeletedEnd : public T {
+  Data *begin();
+  Data *end() = delete; //expected-note {{function has been explicitly marked deleted here}}
+};
+
+struct DeletedADLBegin { };
+
+int* begin(DeletedADLBegin) = delete; //expected-note {{candidate function has been explicitly deleted}} \
+ expected-note 5 {{candidate function not viable: no known conversion}}
+
+struct PrivateEnd {
+  Data *begin();
+
+ private:
+  Data *end(); // expected-note 2 {{declared private here}}
+};
+
+struct ADLNoEnd { };
+Data * begin(ADLNoEnd); // expected-note 6 {{candidate function not viable: no known conversion}}
+
+struct OverloadedStar {
+  T operator*();
+};
+
+void f() {
+  T t;
+  for (auto i : t) { }
+  T *pt;
+  for (auto i : pt) { } // expected-error{{invalid range expression of type 'T *'; did you mean to dereference it with '*'?}}
+
+  int arr[10];
+  for (auto i : arr) { }
+  int (*parr)[10];
+  for (auto i : parr) { }// expected-error{{invalid range expression of type 'int (*)[10]'; did you mean to dereference it with '*'?}}
+
+  NoBegin NB;
+  for (auto i : NB) { }// expected-error{{range type 'NoBegin' has 'end' member but no 'begin' member}}
+  NoBegin *pNB;
+  for (auto i : pNB) { }// expected-error{{invalid range expression of type 'NoBegin *'; no viable 'begin' function available}}
+  NoBegin **ppNB;
+  for (auto i : ppNB) { }// expected-error{{invalid range expression of type 'NoBegin **'; no viable 'begin' function available}}
+  NoBegin *****pppppNB;
+  for (auto i : pppppNB) { }// expected-error{{invalid range expression of type 'NoBegin *****'; no viable 'begin' function available}}
+
+  ADLNoEnd ANE;
+  for (auto i : ANE) { } // expected-error{{invalid range expression of type 'ADLNoEnd'; no viable 'end' function available}}
+  ADLNoEnd *pANE;
+  for (auto i : pANE) { } // expected-error{{invalid range expression of type 'ADLNoEnd *'; no viable 'begin' function available}}
+
+  DeletedEnd DE;
+  for (auto i : DE) { } // expected-error{{attempt to use a deleted function}} \
+expected-note {{when looking up 'end' function for range expression of type 'DeletedEnd'}}
+  DeletedEnd *pDE;
+
+  for (auto i : pDE) { } // expected-error {{invalid range expression of type 'DeletedEnd *'; no viable 'begin' function available}}
+
+  PrivateEnd PE;
+  // FIXME: This diagnostic should be improved, as it does not specify that
+  // the range is invalid.
+  for (auto i : PE) { } // expected-error{{'end' is a private member of 'PrivateEnd'}}
+
+  PrivateEnd *pPE;
+  for (auto i : pPE) { }// expected-error {{invalid range expression of type 'PrivateEnd *'}}
+  // expected-error@-1 {{'end' is a private member of 'PrivateEnd'}}
+
+  DeletedADLBegin DAB;
+  for (auto i : DAB) { } // expected-error {{call to deleted function 'begin'}}\
+  expected-note {{when looking up 'begin' function for range expression of type 'DeletedADLBegin'}}
+
+  OverloadedStar OS;
+  for (auto i : *OS) { }
+
+  for (auto i : OS) { } // expected-error {{invalid range expression of type 'OverloadedStar'; did you mean to dereference it with '*'?}}
+
+  for (Data *p : pt) { } // expected-error {{invalid range expression of type 'T *'; did you mean to dereference it with '*'?}}
+  // expected-error@-1 {{no viable conversion from 'Data' to 'Data *'}}
+  // expected-note@4 {{selected 'begin' function with iterator type 'Data *'}}
+}