xref: /llvm-project/libcxx/test/std/containers/test_hash.h (revision bbd717b9a3b22c6cba1535018dae2ebcee95fc9b)
1 //===----------------------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 #ifndef TEST_HASH_H
10 #define TEST_HASH_H
11 
12 #include <cstddef>
13 #include <utility>
14 
15 template <class T>
16 class test_hash
17 {
18     int data_;
19 public:
data_(data)20     explicit test_hash(int data = 0) : data_(data) {}
21 
operator()22     std::size_t operator()(const T& x) const
23         {return std::hash<T>()(x);}
24 
25     bool operator==(const test_hash& c) const
26         {return data_ == c.data_;}
27 };
28 
29 #endif // TEST_HASH_H
30