From e27fc674f52d900d28037095ef4dc3c80670fd75 Mon Sep 17 00:00:00 2001
From: Jack Grigg <jack@z.cash>
Date: Wed, 22 Aug 2018 23:45:56 +0100
Subject: [PATCH] Tidy up DiversifierIndex::increment()

---
 src/lib.rs | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/src/lib.rs b/src/lib.rs
index b89576f..088a8a1 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -286,19 +286,15 @@ impl DiversifierIndex {
     }
 
     pub fn increment(&mut self) -> Result<(), ()> {
-        let mut k = 0;
-        loop {
+        for k in 0..11 {
             self.0[k] = self.0[k].wrapping_add(1);
             if self.0[k] != 0 {
                 // No overflow
                 return Ok(());
             }
-            // Overflow
-            k += 1;
-            if k == 11 {
-                return Err(());
-            }
         }
+        // Overflow
+        Err(())
     }
 }