folly/folly/hash/FarmHash.h

/*
 * Copyright (c) Meta Platforms, Inc. and affiliates.
 *
 * 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 <folly/external/farmhash/farmhash.h>

namespace folly {
namespace hash {
namespace farmhash {

// The values returned by Hash, Hash32, and Hash64 are only guaranteed to
// be the same within the same process.  Fingerpring32 and Fingerprint64
// are fixed algorithms that always give the same result.

// std::size_t Hash(char const*, std::size_t)
using external::farmhash::Hash;

// uint32_t Hash32(char const*, std::size_t)
using external::farmhash::Hash32;

// uint64_t Hash64(char const*, std::size_t)
using external::farmhash::Hash64;

// uint32_t Fingerprint32(char const*, std::size_t)
using external::farmhash::Fingerprint32;

// uint64_t Fingerprint64(char const*, std::size_t)
using external::farmhash::Fingerprint64;

} // namespace farmhash
} // namespace hash
} // namespace folly