Use for-loops in setup_pairs

niklasf · Apr 17, 2015 · c90932a · c90932a
1 parent 56bb201
commit c90932a
Showing 1 changed file with 2 additions and 6 deletions.
diff --git a/chess/syzygy.py b/chess/syzygy.py
@@ -498,14 +498,10 @@ def setup_pairs(self, data_ptr, tb_size, size_idx, wdl):
 
         d.base = [0 for _ in range(h)]
         d.base[h - 1] = 0
-        i = h - 2
-        while i >= 0:
+        for i in range(h - 2, -1, -1):
             d.base[i] = (d.base[i + 1] + self.read_ushort(d.offset + i * 2) - self.read_ushort(d.offset + i * 2 + 2)) // 2
-            i -= 1
-        i = 0
-        while i < h:
+        for i in range(h):
             d.base[i] <<= 64 - (min_len + i)
-            i += 1
 
         d.offset -= 2 * d.min_len