Remove useless casts to Pointer

in arguments of memcpy() and memmove() calls

Reviewed-by: Chao Li <li.evan.chao@gmail.com>
Reviewed-by: Bertrand Drouvot <bertranddrouvot.pg@gmail.com>
Discussion: https://www.postgresql.org/message-id/4154950a-47ae-4223-bd01-1235cc50e933%40eisentraut.org

contrib/bloom/blutils.c

@@ -336,7 +336,7 @@ BloomPageAddItem(BloomState *state, Page page, BloomTuple *tuple)
 	/* Copy new tuple to the end of page */
 	opaque = BloomPageGetOpaque(page);
 	itup = BloomPageGetTuple(state, page, opaque->maxoff + 1);
-	memcpy((Pointer) itup, (Pointer) tuple, state->sizeOfBloomTuple);
+	memcpy(itup, tuple, state->sizeOfBloomTuple);
 
 	/* Adjust maxoff and pd_lower */
 	opaque->maxoff++;

contrib/bloom/blvacuum.c

@@ -94,8 +94,7 @@ blbulkdelete(IndexVacuumInfo *info, IndexBulkDeleteResult *stats,
 			{
 				/* No; copy it to itupPtr++, but skip copy if not needed */
 				if (itupPtr != itup)
-					memmove((Pointer) itupPtr, (Pointer) itup,
-							state.sizeOfBloomTuple);
+					memmove(itupPtr, itup, state.sizeOfBloomTuple);
 				itupPtr = BloomPageGetNextTuple(&state, itupPtr);
 			}
 

src/backend/access/gin/ginxlog.c

@@ -212,7 +212,7 @@ ginRedoRecompress(Page page, ginxlogRecompressDataLeaf *data)
 			if (tailCopy)
 			{
 				Assert(writePtr + segsize < PageGetSpecialPointer(page));
-				memcpy(writePtr, (Pointer) oldseg, segsize);
+				memcpy(writePtr, oldseg, segsize);
 			}
 			writePtr += segsize;
 			oldseg = GinNextPostingListSegment(oldseg);

src/backend/utils/adt/multirangetypes.c

@@ -629,7 +629,7 @@ write_multirange_data(MultirangeType *multirange, TypeCacheEntry *rangetyp,
 		}
 		flags[i] = *((Pointer) ranges[i] + VARSIZE(ranges[i]) - sizeof(char));
 		len = VARSIZE(ranges[i]) - sizeof(RangeType) - sizeof(char);
-		memcpy(ptr, (Pointer) (ranges[i] + 1), len);
+		memcpy(ptr, ranges[i] + 1, len);
 		ptr += att_align_nominal(len, elemalign);
 	}
 }