Initial commit

venv/lib/python3.10/site-packages/pyarrow/include/arrow/util/crc32.h

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+// 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.
+
+#include <cstddef>
+#include <cstdint>
+
+#include "arrow/util/visibility.h"
+
+namespace arrow {
+namespace internal {
+
+/// \brief Compute the CRC32 checksum of the given data
+///
+/// This function computes CRC32 with the polynomial 0x04C11DB7,
+/// as used in zlib and others (note this is different from CRC32C).
+/// To compute a running CRC32, pass the previous value in `prev`,
+/// otherwise `prev` should be 0.
+ARROW_EXPORT
+uint32_t crc32(uint32_t prev, const void* data, size_t length);
+
+}  // namespace internal
+}  // namespace arrow