From baaa33032b3cabbfc76760e55e1091c3ba22e826 Mon Sep 17 00:00:00 2001
From: Michael Mikonos <127171689+mknos@users.noreply.github.com>
Date: Thu, 14 Mar 2024 13:12:50 +0800
Subject: [PATCH] arithmetic: -r validation (#501)

* Validation code for number range option -r was looking at the wrong variable name
* The intent of the code is for only validated input to be assigned to $range
---
 bin/arithmetic | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/bin/arithmetic b/bin/arithmetic
index de099782..325b0594 100755
--- a/bin/arithmetic
+++ b/bin/arithmetic
@@ -33,7 +33,7 @@ if (defined $opt{'o'}) {
 }
 my $range = 10;
 if (defined $opt{'r'}) {
-    usage() if ($range !~ m/\A[0-9]+\Z/);
+    usage() if ($opt{'r'} !~ m/\A[0-9]+\Z/);
     $range = $opt{'r'};
 }
 # Special case the range of 0. Since the right operator can only be 0,