From d1fbb8a047100fb8e424f69b2e7e4eb6ac289c53 Mon Sep 17 00:00:00 2001
From: weidai <weidai@57ff6487-cd31-0410-9ec3-f628ee90f5f0>
Date: Mon, 13 Aug 2007 23:55:05 +0000
Subject: fix valgrind issues reported by Chris Morgan

git-svn-id: svn://svn.code.sf.net/p/cryptopp/code/trunk/c5@387 57ff6487-cd31-0410-9ec3-f628ee90f5f0
---
 filters.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'filters.cpp')

diff --git a/filters.cpp b/filters.cpp
index 47a91a3..9f4308b 100644
--- a/filters.cpp
+++ b/filters.cpp
@@ -509,7 +509,8 @@ size_t RandomNumberSink::Put2(const byte *begin, size_t length, int messageEnd,
 
 size_t ArraySink::Put2(const byte *begin, size_t length, int messageEnd, bool blocking)
 {
-	memcpy(m_buf+m_total, begin, STDMIN(length, SaturatingSubtract(m_size, m_total)));
+	if (m_buf+m_total != begin)
+		memcpy(m_buf+m_total, begin, STDMIN(length, SaturatingSubtract(m_size, m_total)));
 	m_total += length;
 	return 0;
 }
-- 
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