1 //===----------------------------------------------------------------------===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is dual licensed under the MIT and the University of Illinois Open
6 // Source Licenses. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9
10 #include <assert.h>
11 #include <ext/hash_map>
12 #include <string>
13
main()14 int main()
15 {
16 assert(__gnu_cxx::hash<std::string>()(std::string()) == 0); // error
17 }
18