From: Jean-Marc Lasgouttes <lasgouttes@lyx.org>
Date: Tue, 29 May 2018 13:18:01 +0000 (+0200)
Subject: Fixup dd79338c: avoid hypothetical division by zero
X-Git-Tag: lyx-2.4.0dev-acb2ca7b~3388
X-Git-Url: https://git.lyx.org/gitweb/?a=commitdiff_plain;h=d1d3f755484d500550d70fc025e3a4a4e6c0a2a8;p=features.git

Fixup dd79338c: avoid hypothetical division by zero

Spotted by Coverity.
---

diff --git a/src/frontends/qt4/GuiView.cpp b/src/frontends/qt4/GuiView.cpp
index 47a56882b1..435738957c 100644
--- a/src/frontends/qt4/GuiView.cpp
+++ b/src/frontends/qt4/GuiView.cpp
@@ -220,7 +220,7 @@ public:
 		}
 		// The longest line in the reference font (for English)
 		// is 180. Calculate scale factor from that.
-		double const wscale = (180.0 / wline);
+		double const wscale = wline > 0 ? (180.0 / wline) : 1;
 		// Now do the same for the height (necessary for condensed fonts)
 		double const hscale = (34.0 / hline);
 		// take the lower of the two scale factors.