1 files changed, 2 insertions, 2 deletions
diff --git a/misc.h b/misc.h
index 8425c53..7f32b86 100644
--- a/misc.h
+++ b/misc.h
@@ -580,13 +580,13 @@ CRYPTOPP_DLL void CRYPTOPP_API UnalignedDeallocate(void *p);
 template <class T> inline T rotlFixed(T x, unsigned int y)
 {
 	assert(y < sizeof(T)*8);
-	return T((x<<y) | (x>>(sizeof(T)*8-y)));
+	return y ? T((x<<y) | (x>>(sizeof(T)*8-y))) : x;
 }
 
 template <class T> inline T rotrFixed(T x, unsigned int y)
 {
 	assert(y < sizeof(T)*8);
-	return T((x>>y) | (x<<(sizeof(T)*8-y)));
+	return y ? T((x>>y) | (x<<(sizeof(T)*8-y))) : x;
 }
 
 template <class T> inline T rotlVariable(T x, unsigned int y)