# HG changeset patch
# User Zufu Liu
# Date 1508018757 -39600
# Node ID 2db0528f34b5b79890fd6c04897091474c18839a
# Parent  85f99a613e89325580b2202031b99f88e1c73bb1
Bug [#1978]. Minor undefined behaviour fixed.

diff -r 85f99a613e89 -r 2db0528f34b5 doc/ScintillaHistory.html
--- a/doc/ScintillaHistory.html	Sun Oct 15 08:57:00 2017 +1100
+++ b/doc/ScintillaHistory.html	Sun Oct 15 09:05:57 2017 +1100
@@ -557,6 +557,10 @@
 	<a href="http://sourceforge.net/p/scintilla/bugs/1968/">Bug #1968</a>.
 	</li>
 	<li>
+	Minor undefined behaviour fixed.
+	<a href="http://sourceforge.net/p/scintilla/bugs/1978">Bug #1978</a>.
+	</li>
+	<li>
 	On Cocoa, improve scrolling on macOS 10.12.
 	<a href="http://sourceforge.net/p/scintilla/bugs/1885">Bug #1885</a>.
 	</li>
diff -r 85f99a613e89 -r 2db0528f34b5 src/ViewStyle.cxx
--- a/src/ViewStyle.cxx	Sun Oct 15 08:57:00 2017 +1100
+++ b/src/ViewStyle.cxx	Sun Oct 15 09:05:57 2017 +1100
@@ -192,7 +192,7 @@
 	}
 	maskDrawInText = 0;
 	for (int markBit = 0; markBit < 32; markBit++) {
-		const int maskBit = 1 << markBit;
+		const int maskBit = 1U << markBit;
 		switch (markers[markBit].markType) {
 		case SC_MARK_EMPTY:
 			maskInLine &= ~maskBit;