1 // RUN: %clang_cc1 -std=c++14 -fsyntax-only -verify %s
2
3 using nullptr_t = decltype(nullptr);
4
5 template<typename T>
6 struct Base {
7 T inner;
8 };
9
10 int z;
11
12 template<typename T>
13 struct X : Base<T> {
14 static int z;
15
16 template<int U>
17 struct Inner {
18 };
19
fX20 bool f(T other) {
21 // A pair of comparisons; 'inner' is a dependent name so can't be assumed
22 // to be a template.
23 return this->inner < other > ::z; // expected-warning {{comparisons like 'X<=Y<=Z' don't have their mathematical meaning}}
24 }
25 };
26
use_x(X<int> x)27 void use_x(X<int> x) { x.f(0); } // expected-note {{requested here}}
28
29 template<typename T>
30 struct Y {
31 static int z;
32
33 template<int U>
34 struct Inner; // expected-note {{declared here}}
35
fY36 bool f(T other) {
37 // We can determine that 'inner' does not exist at parse time, so can
38 // perform typo correction in this case.
39 return this->inner<other>::z; // expected-error {{no template named 'inner' in 'Y<T>'; did you mean 'Inner'?}}
40 }
41 };
42
43 template<typename T>
44 template<int U>
45 struct Y<T>::Inner : Y { };
46
operator intQ47 struct Q { constexpr operator int() { return 0; } };
use_y(Y<Q> x)48 void use_y(Y<Q> x) { x.f(Q()); }
49