From 8aa206ef95c817db56e5108df57790493e582eca Mon Sep 17 00:00:00 2001
From: Chris Forbes <chrisf@ijw.co.nz>
Date: Wed, 4 May 2011 14:28:06 +1200
Subject: [PATCH] fix bogus copy in Blast.cs

---
 OpenRA.FileFormats/FileFormats/Blast.cs | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/OpenRA.FileFormats/FileFormats/Blast.cs b/OpenRA.FileFormats/FileFormats/Blast.cs
index 961287d5f6..443b04874c 100644
--- a/OpenRA.FileFormats/FileFormats/Blast.cs
+++ b/OpenRA.FileFormats/FileFormats/Blast.cs
@@ -123,7 +123,12 @@ namespace OpenRA.FileFormats
 						
 						len -= copy;
 						next += (ushort)copy;
-						Array.Copy(outBuffer, source, outBuffer, dest, copy);
+
+						// copy with old-fashioned memcpy semantics
+						// in case of overlapping ranges. this is NOT
+						// the same as Array.Copy()
+						while( copy-- > 0 )
+							outBuffer[dest++] = outBuffer[source++];
 						
 						// Flush window to outstream
 						if (next == MAXWIN)