================
@@ -0,0 +1,22 @@
+// RUN: %clang_cc1 -fsyntax-only -verify %s
+
+template<class T, class V>
+struct A{
+ A();
+ A(A&);
+ A(A<V, T>); // expected-error{{copy constructor must pass its first
argument by reference}}
+};
+
+void f() {
+ A<int, int> a = A<int, int>(); // expected-note{{in instantiation of
template class 'A<int, int>'}}
+}
+
+template<class T, class V>
+struct B{
+ B();
+ template<class U> B(U); // No error (templated constructor)
+};
+
+void g() {
+ B<int, int> b = B<int, int>(); // should use implicit copy constructor
+}
----------------
Megan0704-1 wrote:
Thanks for the review! I’ll add tests for the A<int, double> case and update
the PR shortly.
https://github.com/llvm/llvm-project/pull/130866
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