add "volatile" to prevent compiler optimizing away code

git-svn-id: svn://svn.code.sf.net/p/cryptopp/code/trunk/c5@482 57ff6487-cd31-0410-9ec3-f628ee90f5f0

1 files changed, 1 insertions, 1 deletions

diff --git a/hex.cpp b/hex.cpp
index b6484a5..5731df5 100644
--- a/hex.cpp
+++ b/hex.cpp
@@ -28,7 +28,7 @@ void HexDecoder::IsolatedInitialize(const NameValuePairs &parameters)
 
 const int *HexDecoder::GetDefaultDecodingLookupArray()
 {
-	static bool s_initialized = false;
+	static volatile bool s_initialized = false;
 	static int s_array[256];
 
 	if (!s_initialized)