blob: 21d965626c0fd7f0d9d3674543cc9e1634f8f6b7 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
|
/*
* Copyright 2017 WebAssembly Community Group participants
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef WABT_HASH_UTIL_H_
#define WABT_HASH_UTIL_H_
#include <cstdlib>
#include <functional>
namespace wabt {
typedef std::size_t hash_code;
inline hash_code HashCombine() { return 0; }
inline hash_code HashCombine(hash_code seed) { return seed; }
hash_code HashCombine(hash_code x, hash_code y);
template <typename T, typename... U>
inline hash_code HashCombine(const T& first, const U&... rest) {
return HashCombine(HashCombine(rest...), std::hash<T>()(first));
}
template <typename It>
inline hash_code HashRange(It first, It last) {
hash_code result = 0;
for (auto iter = first; iter != last; ++iter) {
result = HashCombine(result, *iter);
}
return result;
}
} // namespace wabt
#endif // WABT_HASH_UTIL_H_
|
