How Can I Efficiently Find Byte Patterns in Byte Arrays?

Search for byte pattern in byte array

Finding a specific byte pattern in a large byte array is a common task in programming. This article discusses a search algorithm designed to improve efficiency and flexibility.

The

method in the ByteArrayRocks class provides a straightforward approach without unnecessary data conversion or unsafe code. It takes the following steps: Locate

Verify that the input array is not empty and the pattern length does not exceed the source array length.
Initialize a list to store matching positions.
Traverse the source array, starting from the first candidate position.
If the pattern matches the current location, add it to the list.
Convert list to array for faster access.
The

method performs the actual pattern matching via byte-by-byte comparison. IsMatch Method checks for invalid input and empty array. IsEmptyLocate A usage example is provided in the

method that demonstrates how to search for a pattern in a byte array. Main

This approach outperforms other solutions in terms of execution time. Benchmarking over millions of iterations shows that the

approach is significantly faster: Locate

方案	执行时间
Locate	00:00:00.7714027
FindAll	00:00:03.5404399
SearchBytePattern	00:00:01.1105190
MatchBytePattern	00:00:03.0658212

This algorithm provides an efficient and convenient way to find byte patterns in byte arrays, making it suitable for a variety of applications.

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