1 files changed, 26 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/template/spec23.C b/gcc/testsuite/g++.dg/template/spec23.C
new file mode 100644
index 000000000..3d401f00e
--- /dev/null
+++ b/gcc/testsuite/g++.dg/template/spec23.C
@@ -0,0 +1,26 @@
+// Copyright (C) 2005 Free Software Foundation, Inc.
+// Contributed by Nathan Sidwell 2 Apr 2005 <nathan@codesourcery.com>
+
+// PR 20723
+// Origin: Andrew Pinski <pinskia@gcc.gnu.org>
+//         Nathan Sidwell <nathan@gcc.gnu.org>
+
+struct Foo
+{
+  template <typename T>
+  Foo (const T &); // { dg-message "T = Bar" }
+};
+
+struct Bar
+{
+  template <typename T>
+  operator T () const;   // { dg-message "T = Foo" }
+};
+
+Foo Quux (Bar const &b)
+{
+  return b; // { dg-error "ambiguous" }
+  // { dg-message "candidate" "candidate note" { target *-*-* } 22 }
+}
+
+