From 2d076ff5b906ac73f5c07123be815c3ab95c9099 Mon Sep 17 00:00:00 2001
From: Bert Peters <bert@bertptrs.nl>
Date: Fri, 18 Dec 2020 18:52:08 +0100
Subject: [PATCH] Fix clippy warnings

---
 2020/src/day18.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/2020/src/day18.rs b/2020/src/day18.rs
index 5edd067..eae729f 100644
--- a/2020/src/day18.rs
+++ b/2020/src/day18.rs
@@ -72,7 +72,7 @@ fn compute_value(expression: &str) -> u64 {
             _ => panic!("Not a valid expression part {}", part),
         }
 
-        let pos = pos.map(|n| n + 1).unwrap_or(remainder.len());
+        let pos = pos.map(|n| n + 1).unwrap_or_else(|| remainder.len());
         remainder = &remainder[pos..];
     }
 
@@ -123,7 +123,7 @@ fn compute_value2(expression: &str) -> u64 {
             _ => panic!("Not a valid expression part {}", part),
         }
 
-        let pos = pos.map(|n| n + 1).unwrap_or(remainder.len());
+        let pos = pos.map(|n| n + 1).unwrap_or_else(|| remainder.len());
         remainder = &remainder[pos..];
     }