From 72045dff4f766d4b8332f126e377ab54a683276e Mon Sep 17 00:00:00 2001
From: Martin Holst Swende <martin@swende.se>
Date: Thu, 5 Sep 2019 13:19:55 +0200
Subject: core/state: optimize some internals during encoding

---
 common/bytes.go | 11 +++++++++++
 1 file changed, 11 insertions(+)

(limited to 'common')

diff --git a/common/bytes.go b/common/bytes.go
index 910c97d3c..fa457b92c 100644
--- a/common/bytes.go
+++ b/common/bytes.go
@@ -134,3 +134,14 @@ func LeftPadBytes(slice []byte, l int) []byte {
 
 	return padded
 }
+
+// TrimLeftZeroes returns a subslice of s without leading zeroes
+func TrimLeftZeroes(s []byte) []byte {
+	idx := 0
+	for ; idx < len(s); idx++ {
+		if s[idx] != 0 {
+			break
+		}
+	}
+	return s[idx:]
+}
-- 
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