From cebf19a071df7a9f4e4b214f4c846a2ecc6ddb97 Mon Sep 17 00:00:00 2001
From: Kurt Hindenburg <kurt.hindenburg@gmail.com>
Date: Thu, 27 Nov 2025 17:41:36 -0500
Subject: [PATCH] Fix over/underflowed return value (coverity)

stringWidth() could return a negative value as width() returns
negative on some characters. This fixes by returning 0 at a mininum.
---
 src/characters/Character.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/characters/Character.h b/src/characters/Character.h
index b907f1f04..3cd9cc698 100644
--- a/src/characters/Character.h
+++ b/src/characters/Character.h
@@ -349,7 +349,9 @@ public:
                 w += Hangul::width(c, width(c, ignoreWcWidth), hangulSyllablePos);
             }
         }
-        return w;
+        // Do not return a negative width. width() can be negative and could
+        // make the return value here be negative.
+        return (w < 0) ? 0 : w;
     }
 
     inline static int stringWidth(const QString &str, bool ignoreWcWidth = false)