Fix the check for wrong freq settings

Qucs · May 26, 2018 · 7b8a1e0 · 7b8a1e0
1 parent 70f3d12
commit 7b8a1e0
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/qucs/qucs-wideband-matching/ui.cpp b/qucs/qucs-wideband-matching/ui.cpp
@@ -357,7 +357,7 @@ void ui::go_clicked()
     double fmatching_min = minFEdit->text().toDouble();
     double fmatching_max = maxFEdit->text().toDouble();
 
-    if ((fmatching_min == -1) || (fmatching_max == -1))
+    if ((fmatching_min == -1) || (fmatching_max == -1) || (fmatching_min > fmatching_max))
     {
         QMessageBox::warning(0, QObject::tr("Error"),
                              QObject::tr("Wrong frequency settings"));