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| author | Felix Lange <fjl@twurst.com> | 2015-06-27 10:26:26 +0800 |
|---|---|---|
| committer | Jeffrey Wilcke <geffobscura@gmail.com> | 2015-06-30 00:51:48 +0800 |
| commit | 8743cc1c1ce6b78a02cd29cc06eed3a85ea74209 (patch) | |
| tree | 7e85effa55ae199c7ed96040a2e7960d46b55d19 | |
| parent | a0566c10585cd19b12b40127597e310f4b7bfa67 (diff) | |
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rlp: add ListSize
| -rw-r--r-- | rlp/encode.go | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/rlp/encode.go b/rlp/encode.go index a9f80d448..b418fb501 100644 --- a/rlp/encode.go +++ b/rlp/encode.go @@ -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. |