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BOLT 7: clarify how to decode empty arrays #729

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BOLT 7: clarify how to decode empty arrays #729

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2 changes: 2 additions & 0 deletions 07-routing-gossip.md
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Expand Up @@ -575,6 +575,8 @@ Encoding types:

This encoding is also used for arrays of other types (timestamps, flags, ...), and specified with an `encoded_` prefix. For example, `encoded_timestamps` is an array of timestamps than can be either compressed (with a `1` prefix) or uncompressed (with a `0` prefix).

An empty encoded data buffer always decodes to an empty array, no matter what the encoding type is set to.

Note that a 65535-byte zlib message can decompress into 67632120
bytes<sup>[2](#reference-2)</sup>, but since the only valid contents
are unique 8-byte values, no more than 14 bytes can be duplicated
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