qcompare_index(): simplified

src/remap_store_link.cc

@@ -24,17 +24,13 @@ is_sorted_list(size_t n, const size_t *list)
 static int
 qcompare_index(const void *a, const void *b)
 {
-  size_t x = ((const IndexWeight *) a)->index;
-  size_t y = ((const IndexWeight *) b)->index;
-  return ((x > y) - (x < y)) * 2 + (x > y) - (x < y);
+  return (((const IndexWeight *) a)->index < ((const IndexWeight *) b)->index);
 }
 
 static int
 qcompare_index4(const void *a, const void *b)
 {
-  size_t x = ((const IndexWeight4 *) a)->index;
-  size_t y = ((const IndexWeight4 *) b)->index;
-  return ((x > y) - (x < y)) * 2 + (x > y) - (x < y);
+  return (((const IndexWeight4 *) a)->index < ((const IndexWeight4 *) b)->index);
 }
 
 static void