godot/thirdparty/manifold/src/hashtable.h

// Copyright 2022 The Manifold Authors.
//
// 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.
#pragma once
#include <stdint.h>

#include <atomic>

#include "./utils.h"
#include "./vec.h"

namespace {
Uint64;
hash_fun_t;
inline constexpr Uint64 kOpen = …;

template <typename T>
T AtomicCAS(T& target, T compare, T val) { … }

template <typename T>
void AtomicStore(T& target, T val) { … }

template <typename T>
T AtomicLoad(const T& target) { … }

// https://stackoverflow.com/questions/664014/what-integer-hash-function-are-good-that-accepts-an-integer-hash-key
inline Uint64 hash64bit(Uint64 x) { … }
}  // namespace

namespace manifold {

template <typename V, hash_fun_t H = hash64bit>
class HashTableD { … };

template <typename V, hash_fun_t H = hash64bit>
class HashTable { … };
}  // namespace manifold