Changeset 4def554 in git

Timestamp:

Jan 25, 2013, 5:21:43 PM (10 years ago)

Author:

Hans Schoenemann <hannes@…>

Branches:

(u'jengelh-datetime', 'ceac47cbc86fe4a15902392bdbb9bd2ae0ea02c6')(u'spielwiese', 'a800fe4b3e9d37a38c5a10cc0ae9dfa0c15a4ee6')

Children:

687272a659feb32db61b3cd8137d48231f1d95a8

Parents:

511f2dc03c6243e6c3215c95cb05254f3cea69b7

Message:

opt.: int power with +/-1'(Singular/iparith.cc)

File:

• Singular/iparith.cc (modified) (1 diff)

Singular/iparith.cc

@@ -524 +524 @@
     {
       rc=(e==0);
+    }
+    else if ((e==0)||(b==1))
+    {
+      rc= 1;
+    }
+    else if (b== -1)
+    {
+      if (e&1) rc= -1;
+      else     rc= 1;
     }
     else