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 14int main() 15{ 16 assert(__gnu_cxx::hash<std::string>()(std::string()) == 0); // error 17} 18