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https://github.com/kidfromjupiter/nearby.git
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43 lines
1.5 KiB
C++
43 lines
1.5 KiB
C++
// Copyright 2020 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef PLATFORM_BASE_BYTE_UTILS_H_
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#define PLATFORM_BASE_BYTE_UTILS_H_
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#include <cstdint>
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#include <string>
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#include "internal/platform/byte_array.h"
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// TODO(edwinwu): Remove this namespace and move all the functions into
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// ByteArray class.
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namespace nearby::byte_utils {
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// Generates a four-digit numeric string representation of a byte array.
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std::string ToFourDigitString(const ByteArray& bytes);
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// Converts a ByteArray to a 32-bit integer in big-endian format.
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// It reads min(4, bytes.size()) bytes from input ByteArray; bytes[0] is
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// read as MSB, bytes[1] as second byte, and so on. If bytes.size() < 4,
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// bytes will be read to high order bytes of result and low order bytes
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// will be 0.
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int32_t BytesToInt(const ByteArray& bytes);
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// Converts a 32-bit integer to a 4-byte ByteArray in big-endian format.
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ByteArray IntToBytes(int32_t value);
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} // namespace nearby::byte_utils
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#endif // PLATFORM_BASE_BYTE_UTILS_H_
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