Squashed 'src/crc32c/' content from commit 224988680f7673cd7c769963d4035cb315aa3388

git-subtree-dir: src/crc32c
git-subtree-split: 224988680f7673cd7c769963d4035cb315aa3388

1 files changed, 23 insertions, 0 deletions

diff --git a/src/crc32c_internal.h b/src/crc32c_internal.h
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+// Copyright 2017 The CRC32C Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file. See the AUTHORS file for names of contributors.
+
+#ifndef CRC32C_CRC32C_INTERNAL_H_
+#define CRC32C_CRC32C_INTERNAL_H_
+
+// Internal functions that may change between releases.
+
+#include <cstddef>
+#include <cstdint>
+
+namespace crc32c {
+
+// Un-accelerated implementation that works on all CPUs.
+uint32_t ExtendPortable(uint32_t crc, const uint8_t* data, size_t count);
+
+// CRCs are pre- and post- conditioned by xoring with all ones.
+static constexpr const uint32_t kCRC32Xor = static_cast<uint32_t>(0xffffffffU);
+
+}  // namespace crc32c
+
+#endif  // CRC32C_CRC32C_INTERNAL_H_