From 263bbe1207b1c3c9e9014f9f74648e110bc35eae Mon Sep 17 00:00:00 2001
From: Jack Grigg <jack@z.cash>
Date: Tue, 19 Mar 2019 22:11:29 +1300
Subject: [PATCH] Use Iterator::all() in place of Iterator::fold()

---
 zcash_primitives/src/merkle_tree.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/zcash_primitives/src/merkle_tree.rs b/zcash_primitives/src/merkle_tree.rs
index 3608335..0a830ba 100644
--- a/zcash_primitives/src/merkle_tree.rs
+++ b/zcash_primitives/src/merkle_tree.rs
@@ -145,7 +145,7 @@ impl CommitmentTree {
         self.left.is_some()
             && self.right.is_some()
             && self.parents.len() == depth - 1
-            && self.parents.iter().fold(true, |acc, p| acc && p.is_some())
+            && self.parents.iter().all(|p| p.is_some())
     }
 
     /// Adds a note to the tree. Returns an error if the tree is full.