1 // RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify %s
2 struct Data { };
3 struct T {
4   Data *begin();
5   Data *end();
6 };
7 
8 struct NoBegin {
9   Data *end();
10 };
11 
12 struct DeletedEnd : public T {
13   Data *begin();
14   Data *end() = delete; //expected-note {{'end' has been explicitly marked deleted here}}
15 };
16 
17 struct DeletedADLBegin { };
18 
19 int* begin(DeletedADLBegin) = delete; //expected-note {{candidate function has been explicitly deleted}} \
20  expected-note 5 {{candidate function not viable: no known conversion}}
21 
22 struct PrivateEnd {
23   Data *begin();
24 
25  private:
26   Data *end(); // expected-note 2 {{declared private here}}
27 };
28 
29 struct ADLNoEnd { };
30 Data * begin(ADLNoEnd); // expected-note 6 {{candidate function not viable: no known conversion}}
31 
32 struct OverloadedStar {
33   T operator*();
34 };
35 
f()36 void f() {
37   T t;
38   for (auto i : t) { }
39   T *pt;
40   for (auto i : pt) { } // expected-error{{invalid range expression of type 'T *'; did you mean to dereference it with '*'?}}
41 
42   int arr[10];
43   for (auto i : arr) { }
44   int (*parr)[10];
45   for (auto i : parr) { }// expected-error{{invalid range expression of type 'int (*)[10]'; did you mean to dereference it with '*'?}}
46 
47   NoBegin NB;
48   for (auto i : NB) { }// expected-error{{range type 'NoBegin' has 'end' member but no 'begin' member}}
49   NoBegin *pNB;
50   for (auto i : pNB) { }// expected-error{{invalid range expression of type 'NoBegin *'; no viable 'begin' function available}}
51   NoBegin **ppNB;
52   for (auto i : ppNB) { }// expected-error{{invalid range expression of type 'NoBegin **'; no viable 'begin' function available}}
53   NoBegin *****pppppNB;
54   for (auto i : pppppNB) { }// expected-error{{invalid range expression of type 'NoBegin *****'; no viable 'begin' function available}}
55 
56   ADLNoEnd ANE;
57   for (auto i : ANE) { } // expected-error{{invalid range expression of type 'ADLNoEnd'; no viable 'end' function available}}
58   ADLNoEnd *pANE;
59   for (auto i : pANE) { } // expected-error{{invalid range expression of type 'ADLNoEnd *'; no viable 'begin' function available}}
60 
61   DeletedEnd DE;
62   for (auto i : DE) { } // expected-error{{attempt to use a deleted function}} \
63 expected-note {{when looking up 'end' function for range expression of type 'DeletedEnd'}}
64   DeletedEnd *pDE;
65 
66   for (auto i : pDE) { } // expected-error {{invalid range expression of type 'DeletedEnd *'; no viable 'begin' function available}}
67 
68   PrivateEnd PE;
69   // FIXME: This diagnostic should be improved, as it does not specify that
70   // the range is invalid.
71   for (auto i : PE) { } // expected-error{{'end' is a private member of 'PrivateEnd'}}
72 
73   PrivateEnd *pPE;
74   for (auto i : pPE) { }// expected-error {{invalid range expression of type 'PrivateEnd *'}}
75   // expected-error@-1 {{'end' is a private member of 'PrivateEnd'}}
76 
77   DeletedADLBegin DAB;
78   for (auto i : DAB) { } // expected-error {{call to deleted function 'begin'}}\
79   expected-note {{when looking up 'begin' function for range expression of type 'DeletedADLBegin'}}
80 
81   OverloadedStar OS;
82   for (auto i : *OS) { }
83 
84   for (auto i : OS) { } // expected-error {{invalid range expression of type 'OverloadedStar'; did you mean to dereference it with '*'?}}
85 
86   for (Data *p : pt) { } // expected-error {{invalid range expression of type 'T *'; did you mean to dereference it with '*'?}}
87   // expected-error@-1 {{no viable conversion from 'Data' to 'Data *'}}
88   // expected-note@4 {{selected 'begin' function with iterator type 'Data *'}}
89 }
90