Fixes PR41792: Clang assertion failure on templated friend member function
Differential Revision: https://reviews.llvm.org/D69481
/// list.
static bool
DependsOnTemplateParameters(QualType T, TemplateParameterList *Params) {
+ if (!Params->size())
+ return false;
+
DependencyChecker Checker(Params, /*IgnoreNonTypeDependent*/false);
Checker.TraverseType(T);
return Checker.Match;
void f(T);
template<typename T>
-struct A { };
+struct A { }; // expected-note{{template is declared here}}
struct X {
template<> friend void f<int>(int); // expected-error{{in a friend}}
friend void f<float>(float); // okay
friend class A<float>; // okay
};
+
+struct PR41792 {
+ // expected-error@+1{{cannot declare an explicit specialization in a friend}}
+ template <> friend void f<>(int);
+
+ // expected-error@+2{{template specialization declaration cannot be a friend}}
+ // expected-error@+1{{too few template arguments for class template 'A'}}
+ template <> friend class A<>;
+};