test/int_test.rb in bindata-2.4.8 vs test/int_test.rb in bindata-2.4.9

@@ -126,10 +126,10 @@
     # resulting int is guaranteed to be +ve for signed or unsigned integers
     (0 ... @nbytes).inject(0) { |val, i| (val << 8) | ((val + 0x11) % 0x100) }
   end
 
   def int_to_binary_str(val)
-    str = "".force_encoding(Encoding::BINARY)
+    str = "".dup.force_encoding(Encoding::BINARY)
     v = val & ((1 << (@nbytes * 8)) - 1)
     @nbytes.times do
       str.concat(v & 0xff)
       v >>= 8
     end