Comments cleanup, remove some more useless code

1 files changed, 4 insertions, 4 deletions

diff --git a/merkle.go b/merkle.go
index 15294bd..ccb348c 100644
--- a/merkle.go
+++ b/merkle.go
@@ -30,9 +30,9 @@ func NewMerkle(mtype string, height int64, fname string) Merkle {
 
 // nodes are stored in BFS order, root node first
 type BFSMerkle struct {
-	height int64
+	height int64 // root counts as height 1, children of root as height 2, etc.
 	*os.File
-	size int64
+	size int64 // maximum label of node = 2^height -2
 }
 
 func NewBFSMerkle(height int64, fname string) *BFSMerkle {
@@ -187,9 +187,9 @@ func (m *PostMerkle) Proof(id int64) [][]byte {
 		if mask&id > 0 { // leaf is in the right subtree of current node
 			m.ReadAt(proof[i], (cur-size)*hashSize) // reading the left child
 			cur -= 1                                // moving to the right subtree
-		} else { // left is in the left subtree of current node
+		} else { // leaf is in the left subtree of current node
 			m.ReadAt(proof[i], (cur-1)*hashSize) // reading the right child
-			cur -= size                          // moving the left subtree
+			cur -= size                          // moving to the left subtree
 		}
 		size = mask
 		mask >>= 1