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-rw-r--r--src/core/math/crc64.hh9
1 files changed, 9 insertions, 0 deletions
diff --git a/src/core/math/crc64.hh b/src/core/math/crc64.hh
index 3ece0df..f593dc9 100644
--- a/src/core/math/crc64.hh
+++ b/src/core/math/crc64.hh
@@ -1,3 +1,10 @@
+// SPDX-License-Identifier: BSD-2-Clause
+// Copyright (c) 2025 Kirill Dmitrievich
+// File: crc64.hh
+// Description: Client-server synchronized CRC64
+
+#ifndef CORE_MATH_CRC64_HH
+#define CORE_MATH_CRC64_HH
#pragma once
namespace math
@@ -7,3 +14,5 @@ std::uint64_t crc64(const std::vector<std::byte>& buffer, std::uint64_t combine
std::uint64_t crc64(const std::string& buffer, std::uint64_t combine = UINT64_C(0));
std::uint64_t crc64(std::string_view buffer, std::uint64_t combine = UINT64_C(0));
} // namespace math
+
+#endif