From 87c7f0cefb67ab171ed0d5dda401267f1bb4b231 Mon Sep 17 00:00:00 2001
From: Raatty <me@raatty.club>
Date: Wed, 5 Dec 2018 22:22:39 +1300
Subject: [PATCH] a negative answer no longer crashes the program

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

diff --git a/src/main.rs b/src/main.rs
index 167dde8..66152d8 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -27,8 +27,8 @@ impl Calc {
         self.display();
     }
     fn eval(&mut self) {
-        let left = self.left.parse::<u32>().unwrap_or(0);
-        let right = self.right.parse::<u32>().unwrap_or(0);
+        let left = self.left.parse::<i32>().unwrap_or(0);
+        let right = self.right.parse::<i32>().unwrap_or(0);
         let ans = match self.operator {
             Some(Operators::PLUS) => left + right,
             Some(Operators::MINUS) => left - right,