add CRYPTOPP_NO_VTABLE

1 files changed, 3 insertions, 3 deletions

diff --git a/skipjack.h b/skipjack.h
index 0f6fe94a..99e19fc2 100644
--- a/skipjack.h
+++ b/skipjack.h
@@ -17,7 +17,7 @@ struct SKIPJACK_Info : public FixedBlockSize<8>, public FixedKeyLength<10>
 /// <a href="http://www.weidai.com/scan-mirror/cs.html#SKIPJACK">SKIPJACK</a>
 class SKIPJACK : public SKIPJACK_Info, public BlockCipherDocumentation
 {
-	class Base : public BlockCipherBaseTemplate<SKIPJACK_Info>
+	class CRYPTOPP_NO_VTABLE Base : public BlockCipherBaseTemplate<SKIPJACK_Info>
 	{
 	public:
 		void UncheckedSetKey(CipherDir direction, const byte *userKey, unsigned int length);
@@ -28,7 +28,7 @@ class SKIPJACK : public SKIPJACK_Info, public BlockCipherDocumentation
 		FixedSizeSecBlock<byte[256], 10> tab;
 	};
 
-	class Enc : public Base
+	class CRYPTOPP_NO_VTABLE Enc : public Base
 	{
 	public:
 		void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
@@ -37,7 +37,7 @@ class SKIPJACK : public SKIPJACK_Info, public BlockCipherDocumentation
 		static const word32 Te[4][256];
 	};
 
-	class Dec : public Base
+	class CRYPTOPP_NO_VTABLE Dec : public Base
 	{
 	public:
 		void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;