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Home/ Questions/Q 6683271
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Editorial Team
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Editorial Team
Asked: May 26, 20262026-05-26T04:48:08+00:00 2026-05-26T04:48:08+00:00

Is it possible to match the last byte in a binary using pattern matching.

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Is it possible to match the last byte in a binary using pattern matching. Something like:

<<Rest/binary, 45>> = BinaryToMatch 
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  1. Editorial Team
    Editorial Team
    2026-05-26T04:48:08+00:00Added an answer on May 26, 2026 at 4:48 am

    In short, no (at least not in R14B01). You must also know the size of the binary.

    Skip = byte_size(BinaryToMatch) - 1,
    <<_:Skip/binary, 45>> = BinaryToMatch.
    
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