DeductionFailure.getFirstArg()->getNonTypeTemplateArgumentType();
QualType T2 =
DeductionFailure.getSecondArg()->getNonTypeTemplateArgumentType();
- if (!S.Context.hasSameType(T1, T2)) {
+ if (!T1.isNull() && !T2.isNull() && !S.Context.hasSameType(T1, T2)) {
S.Diag(Templated->getLocation(),
diag::note_ovl_candidate_inconsistent_deduction_types)
<< ParamD->getDeclName() << *DeductionFailure.getFirstArg() << T1
template <typename T> void g(C<A<T>>); // expected-note {{candidate template ignored: deduced type 'C<A<[...], (no argument)>>' of 1st parameter does not match adjusted type 'C<A<[...], int>>' of argument [with T = bool]}}
void h(C<A<bool, int>> &x) { g(x); } // expected-error {{no matching function}}
}
+
+namespace pr39231 {
+ template<typename T, T ...V> struct integer_sequence {};
+
+ template <typename T, T... A, T... B>
+ int operator^(integer_sequence<T, A...> a, // expected-note {{deduced conflicting values for parameter 'A' (<1, 2, 3> vs. <4, 5, 6>)}}
+ integer_sequence<T, A...> b);
+
+ int v = integer_sequence<int, 1, 2, 3>{} ^ integer_sequence<int, 4, 5, 6>{}; // expected-error {{invalid operands}}
+
+ template <typename T, T... A, T... B>
+ integer_sequence<T, A + B...> operator+(integer_sequence<T, A...> a,
+ integer_sequence<T, B...> b);
+ integer_sequence<int, 5, 7, 9> w =
+ integer_sequence<int, 1, 2, 3>{} + integer_sequence<int, 4, 5, 6>{};
+}