disallow pointer reuse

mapbox · Oct 4, 2016 · fcd5ada · fcd5ada
1 parent d4cb5a3
commit fcd5ada
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/platform/darwin/src/MGLMultiPoint.mm b/platform/darwin/src/MGLMultiPoint.mm
@@ -90,7 +90,11 @@ - (void)getCoordinates:(CLLocationCoordinate2D *)coords range:(NSRange)range
 
 - (void)setCoordinates:(CLLocationCoordinate2D *)coords range:(NSRange)range
 {
-    if (range.length == 0)
+    if (coords == _coordinates)
+    {
+        [NSException raise:NSRangeException format:@"Reuse of existing coordinates array %p not supported", coords];
+    }
+    else if (range.length == 0)
     {
         [NSException raise:NSRangeException format:@"Empty coordinate range %@", NSStringFromRange(range)];
     }