[Sema] Reject value-initialization of function types

T in the expression T() must be a non-array complete object type or
the void type.  Function types are neither.

This fixes PR24798.

llvm-svn: 247535

1 files changed, 2 insertions, 0 deletions

diff --git a/clang/test/SemaCXX/type-convert-construct.cpp b/clang/test/SemaCXX/type-convert-construct.cpp
index 479af21476b..2dec50abebf 100644
--- a/clang/test/SemaCXX/type-convert-construct.cpp
+++ b/clang/test/SemaCXX/type-convert-construct.cpp
@@ -5,6 +5,8 @@ void f() {
   int v2 = typeof(int)(1,2); // expected-error {{excess elements in scalar initializer}}
   typedef int arr[];
   int v3 = arr(); // expected-error {{array types cannot be value-initialized}}
+  typedef void fn_ty();
+  fn_ty(); // expected-error {{function types cannot be value-initialized}}
   int v4 = int();
   int v5 = int; // expected-error {{expected '(' for function-style cast or type construction}}
   typedef int T;