lib/tiff.rb in exifr-1.0.2 vs lib/tiff.rb in exifr-1.0.3

@@ -509,11 +509,11 @@
 
     private
       def sign_byte(n)
         (n & 0x80) != 0 ? n - 0x100 : n
       end
-      
+
       def sign_short(n)
         (n & 0x8000) != 0 ? n - 0x10000 : n
       end
 
       def sign_long(n)
@@ -538,10 +538,11 @@
         @pos = 0
 
         case self[0..1]
         when 'II'; @short, @long = 'v', 'V'
         when 'MM'; @short, @long = 'n', 'N'
-        else; raise 'no II or MM marker found'
+        else
+          raise MalformedTIFF, "no byte order information found"
         end
       end
 
       def [](pos)
         unless pos.respond_to?(:begin) && pos.respond_to?(:end)