add CRYPTOPP_NO_VTABLE

1 files changed, 3 insertions, 3 deletions

diff --git a/shacal2.h b/shacal2.h
index 8208760e..fedbe79f 100644
--- a/shacal2.h
+++ b/shacal2.h
@@ -17,7 +17,7 @@ struct SHACAL2_Info : public FixedBlockSize<32>, public VariableKeyLength<16, 16
 /// <a href="http://www.weidai.com/scan-mirror/cs.html#SHACAL-2">SHACAL-2</a>
 class SHACAL2 : public SHACAL2_Info, public BlockCipherDocumentation
 {
-	class Base : public BlockCipherBaseTemplate<SHACAL2_Info>
+	class CRYPTOPP_NO_VTABLE Base : public BlockCipherBaseTemplate<SHACAL2_Info>
 	{
 	public:
 		void UncheckedSetKey(CipherDir direction, const byte *userKey, unsigned int length);
@@ -28,13 +28,13 @@ class SHACAL2 : public SHACAL2_Info, public BlockCipherDocumentation
 		static const word32 K[64];
 	};
 
-	class Enc : public Base
+	class CRYPTOPP_NO_VTABLE Enc : public Base
 	{
 	public:
 		void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
 	};
 
-	class Dec : public Base
+	class CRYPTOPP_NO_VTABLE Dec : public Base
 	{
 	public:
 		void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;