From 3d4f1dc60b954bd266853185b63a488b23287e97 Mon Sep 17 00:00:00 2001
From: Michael Buesch <m@bues.ch>
Date: Mon, 20 May 2019 22:17:45 +0200
Subject: [PATCH] gui: Fix warning: catching polymorphic type by value
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gui/application.cc: In member function ‘virtual bool nextpnr_ice40::Application::notify(QObject*, QEvent*)’:
gui/application.cc:56:32: warning: catching polymorphic type ‘class nextpnr_ice40::assertion_failure’ by value [-Wcatch-value=]
---
 gui/application.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gui/application.cc b/gui/application.cc
index 7751e6f1..8c3db77b 100644
--- a/gui/application.cc
+++ b/gui/application.cc
@@ -53,7 +53,7 @@ bool Application::notify(QObject *receiver, QEvent *event)
     bool retVal = true;
     try {
         retVal = QApplication::notify(receiver, event);
-    } catch (assertion_failure ex) {
+    } catch (const assertion_failure &ex) {
         QString msg;
         QTextStream out(&msg);
         out << ex.filename.c_str() << " at " << ex.line << "\n";