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rlp: add ListSize

This commit is contained in:
Felix Lange 2015-06-27 04:26:26 +02:00 committed by Jeffrey Wilcke
parent a0566c1058
commit 8743cc1c1c
1 changed files with 6 additions and 0 deletions
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6
rlp/encode.go
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@ -29,6 +29,12 @@ type Encoder interface {
EncodeRLP(io.Writer) error
}
// ListSize returns the encoded size of an RLP list with the given
// content size.
func ListSize(contentSize uint64) uint64 {
return uint64(headsize(contentSize)) + contentSize
}
// Encode writes the RLP encoding of val to w. Note that Encode may
// perform many small writes in some cases. Consider making w
// buffered.