From f0ea9447ce10b6b5262cedeeabe36ab39aed14f1 Mon Sep 17 00:00:00 2001
From: cheatfate <ka@hardcore.kiev.ua>
Date: Tue, 20 Sep 2016 17:34:36 +0300
Subject: [PATCH] Add define value `nimBurnFree` which allow deallocation
 procedures to fill memory with 0xFF before freeing it.

---
 lib/system/mmdisp.nim | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/system/mmdisp.nim b/lib/system/mmdisp.nim
index 1863491525..63af49e35b 100644
--- a/lib/system/mmdisp.nim
+++ b/lib/system/mmdisp.nim
@@ -21,7 +21,7 @@ const
   alwaysGC = defined(fulldebug) # collect after every memory
                                 # allocation (for debugging)
   leakDetector = false
-  overwriteFree = false
+  overwriteFree = defined(nimBurnFree) # overwrite memory with 0xFF before free
   trackAllocationSource = leakDetector
 
   cycleGC = true # (de)activate the cycle GC