From: Frederik Gladhorn <gladhorn@kde.org>
Date: Tue, 25 Sep 2007 14:03:01 +0000 (+0000)
Subject: prevent grade underflow
X-Git-Tag: v3.94.0~10
X-Git-Url: https://git.rmz.fi/?a=commitdiff_plain;h=2ad9803b76b4004012c5f03f020881ddb06e1119;p=libqmvoc.git

prevent grade underflow

svn path=/trunk/KDE/kdeedu/libkdeedu/; revision=716887
---

diff --git a/keduvocdocument/keduvocgrade.cpp b/keduvocdocument/keduvocgrade.cpp
index e5ce9cb..b5a132c 100644
--- a/keduvocdocument/keduvocgrade.cpp
+++ b/keduvocdocument/keduvocgrade.cpp
@@ -64,8 +64,9 @@ grade_t KEduVocGrade::grade() const
 
 void KEduVocGrade::setGrade( grade_t grade )
 {
-    if ( grade > KV_MAX_GRADE )
+    if ( grade > KV_MAX_GRADE ) {
         grade = KV_MAX_GRADE;
+    }
     d->m_grade = grade;
 }
 
@@ -78,6 +79,9 @@ void KEduVocGrade::incGrade()
 
 void KEduVocGrade::decGrade()
 {
+    if ( grade() == KV_MIN_GRADE ) {
+        return;
+    }
     setGrade( grade() - 1 );
 }