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 #ifndef TEST_HASH_H 11 #define TEST_HASH_H 12 13 #include <cstddef> 14 #include <type_traits> 15 16 template <class C> 17 class test_hash 18 : private C 19 { 20 int data_; 21 public: 22 explicit test_hash(int data = 0) : data_(data) {} 23 24 std::size_t 25 operator()(typename std::add_lvalue_reference<const typename C::argument_type>::type x) const 26 {return C::operator()(x);} 27 28 bool operator==(const test_hash& c) const 29 {return data_ == c.data_;} 30 }; 31 32 #endif // TEST_HASH_H 33
