1 /*
2 TEST_OUTPUT:
3 ---
4 fail_compilation/cppmangle.d(10): Error: invalid zero length C++ namespace
5 fail_compilation/cppmangle.d(14): Error: expected valid identifer for C++ namespace but got `0num`
6 fail_compilation/cppmangle.d(18): Error: string expected following `,` for C++ namespace, not `)`
7 ---
8 */
9 
10 extern(C++, "")
11 {
12 }
13 
14 extern(C++, "0num")
15 {
16 }
17 
18 extern(C++, "std", )
19 {
20 }
21