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1 // RUN: %clang_cc1 -fsyntax-only -verify %s -DMAX=128 -foperator-arrow-depth 128
2 // RUN: %clang_cc1 -fsyntax-only -verify %s -DMAX=2 -foperator-arrow-depth 2
3 // RUN: %clang -fsyntax-only -Xclang -verify %s -DMAX=10 -foperator-arrow-depth=10
4 
5 template<int N> struct B;
6 template<int N> struct A {
7   B<N> operator->(); // expected-note +{{'operator->' declared here produces an object of type 'B<}}
8 };
9 template<int N> struct B {
10   A<N-1> operator->(); // expected-note +{{'operator->' declared here produces an object of type 'A<}}
11 #if MAX != 2
12   // expected-note-re@-2 {{(skipping {{120|2}} 'operator->'s in backtrace)}}
13 #endif
14 };
15 
16 struct X { int n; };
17 template<> struct B<1> {
18   X *operator->();
19 };
20 
21 A<MAX/2> good;
22 int n = good->n;
23 
24 B<MAX/2 + 1> bad;
25 int m = bad->n; // expected-error-re {{use of 'operator->' on type 'B<{{2|10|128}} / 2 + 1>' would invoke a sequence of more than {{2|10|128}} 'operator->' calls}}
26                 // expected-note@-1 {{use -foperator-arrow-depth=N to increase 'operator->' limit}}
27