bucket_util.h

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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 <cstdint>
#include <span>
 
#include "iceberg/iceberg_export.h"
#include "iceberg/result.h"
#include "iceberg/type_fwd.h"
 
namespace iceberg {
 
class ICEBERG_EXPORT BucketUtils {
 public:
  static inline int32_t HashInt(int32_t value) {
    return HashLong(static_cast<int64_t>(value));
  }
 
  static int32_t HashLong(int64_t value);
 
  static int32_t HashBytes(std::span<const uint8_t> bytes);
 
  static Result<int32_t> BucketIndex(const Literal& literal, int32_t num_buckets);
};
 
}  // namespace iceberg