From 22ed2aab35005df30d946e04d2ca2581d1cc9f36 Mon Sep 17 00:00:00 2001
From: Araq <rumpf_a@web.de>
Date: Thu, 26 Nov 2015 21:20:10 +0100
Subject: [PATCH] fixes memory leak for getAppFilename on Windows

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

diff --git a/lib/pure/os.nim b/lib/pure/os.nim
index 7c14c46cfe..1e00f92b12 100644
--- a/lib/pure/os.nim
+++ b/lib/pure/os.nim
@@ -1361,7 +1361,7 @@ proc getAppFilename*(): string {.rtl, extern: "nos$1", tags: [ReadIOEffect].} =
   # /proc/<pid>/file
   when defined(windows):
     when useWinUnicode:
-      var buf = cast[WideCString](alloc(256*2))
+      var buf = newWideCString("", 256)
       var len = getModuleFileNameW(0, buf, 256)
       result = buf$len
     else: