1 // RUN: %clang_cc1 -fsyntax-only -std=c++11 -verify %s
2 
3 int a<::> = { 1, 2, 3 };
4 int b = a<:::a<:0:>:>;
5 bool c = a<:0:><::b;
6 
7 template<int &n> void f() {}
8 template void f<::b>();
9 
10 #define x a<:: ## : b :>
11 int d = x; // expected-error {{pasting formed ':::', an invalid preprocessing token}} expected-error {{expected unqualified-id}}
12 
13 const char xs[] = R"(\
14 ??=\U0000)";
15 static_assert(sizeof(xs) == 12, "did not revert all changes");
16