fix off-by-one error in String.cstring (#2616)

that could surface if the newly allocated cstring buffer is not set ot 0 completely
ponylang · Mar 31, 2018 · 1190a57 · 1190a57
1 parent 922c028
commit 1190a57
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/packages/builtin/string.pony b/packages/builtin/string.pony
@@ -231,7 +231,7 @@ actor Main
 
     let ptr = Pointer[U8]._alloc(_size + 1)
     _ptr._copy_to(ptr._unsafe(), _size)
-    ptr._update(_size + 1, 0)
+    ptr._update(_size, 0)
     ptr
 
   fun val array(): Array[U8] val =>