================
@@ -0,0 +1,18 @@
+// RUN: %clang_cc1 -std=c++26 -fsyntax-only -verify %s
+
+auto&& f1() {
+ return 42; // expected-error{{returning reference to local temporary object}}
+}
+const double& f2() {
+ static int x = 42;
+ return x; // expected-error{{returning reference to local temporary object}}
+}
+auto&& id(auto&& r) {
+ return static_cast<decltype(r)&&>(r);
+}
+auto&& f3() {
+ return id(42); // OK, but probably a bug
+}
+
+static_assert(__is_convertible(int, const int &));
+static_assert(__is_nothrow_convertible(int, const int &));
----------------
yronglin wrote:
Agree to keep these 2 lines and I'll add more test in type-traits.cpp
https://github.com/llvm/llvm-project/pull/89942
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