Casts result of SafeGetCharAt so that it is treated as unsigned.

1 files changed, 3 insertions, 2 deletions

diff --git a/src/StyleContext.h b/src/StyleContext.h
index d34c89422..36b50f914 100644
--- a/src/StyleContext.h
+++ b/src/StyleContext.h
@@ -104,7 +104,7 @@ public:
 		return currentPos - styler.GetStartSegment();
 	}
 	int GetRelative(int n) {
-		return styler.SafeGetCharAt(currentPos+n);
+		return static_cast<unsigned char>(styler.SafeGetCharAt(currentPos+n));
 	}
 	bool Match(char ch0) {
 		return ch == ch0;
@@ -134,7 +134,8 @@ public:
 			return false;
 		s++;
 		for (int n=2; *s; n++) {
-			if (*s != tolower((styler.SafeGetCharAt(currentPos+n))))
+			if (*s !=
+				tolower(static_cast<unsigned char>(styler.SafeGetCharAt(currentPos+n))))
 				return false;
 			s++;
 		}