Clear unused variable in fltimpl.h in cross-compiler way

Author: noloader

basecode.cpp

@@ -225,7 +225,7 @@ size_t Grouper::Put2(const byte *begin, size_t length, int messageEnd, bool bloc
 			}
 
 			size_t len;
-			FILTER_OUTPUT2(2, len = STDMIN(length-m_inputPosition, m_groupSize-m_counter),
+			FILTER_OUTPUT2(2, (len = STDMIN(length-m_inputPosition, m_groupSize-m_counter)),
 				begin+m_inputPosition, len, 0);
 			m_inputPosition += len;
 			m_counter += len;

fltrimpl.h

@@ -1,16 +1,6 @@
 #ifndef CRYPTOPP_FLTRIMPL_H
 #define CRYPTOPP_FLTRIMPL_H
 
-#if CRYPTOPP_MSC_VERSION
-# pragma warning(push)
-# pragma warning(disable: 4100)
-#endif
-
-#if CRYPTOPP_GCC_DIAGNOSTIC_AVAILABLE
-# pragma GCC diagnostic push
-# pragma GCC diagnostic ignored "-Wunused-value"
-#endif
-
 #define FILTER_BEGIN	\
 	switch (m_continueAt)	\
 	{	\
@@ -38,7 +28,7 @@
 #define FILTER_OUTPUT3(site, statement, output, length, messageEnd, channel)	\
 	{\
 	case site:	\
-	statement;	\
+	(void) statement;	\
 	if (Output(site, output, length, messageEnd, blocking, channel))	\
 		return STDMAX(size_t(1), length-m_inputPosition);\
 	}
@@ -56,7 +46,7 @@
 	{\
 	/* fall through */ \
 	case site:	\
-	statement;	\
+	(void) statement;	\
 	if (OutputModifiable(site, output, length, messageEnd, blocking))	\
 		return STDMAX(size_t(1), length-m_inputPosition);\
 	}
@@ -68,20 +58,12 @@
 	{\
 	/* fall through */ \
 	case site:	\
-	statement;	\
+	(void) statement;	\
 	if (modifiable ? OutputModifiable(site, output, length, messageEnd, blocking) : Output(site, output, length, messageEnd, blocking))	\
 		return STDMAX(size_t(1), length-m_inputPosition);\
 	}
 
 #define FILTER_OUTPUT_MAYBE_MODIFIABLE(site, output, length, messageEnd, modifiable)	\
 	FILTER_OUTPUT2_MAYBE_MODIFIABLE(site, 0, output, length, messageEnd, modifiable)
 
-#if CRYPTOPP_MSC_VERSION
-# pragma warning(pop)
-#endif
-
-#if CRYPTOPP_GCC_DIAGNOSTIC_AVAILABLE
-# pragma GCC diagnostic pop
-#endif
-
 #endif