Changeset fb8ba27 in git

Timestamp:

Nov 22, 2010, 12:36:27 PM (13 years ago)

Author:

Hans Schoenemann <hannes@…>

Branches:

(u'spielwiese', '0d6b7fcd9813a1ca1ed4220cfa2b104b97a0a003')

Children:

8ee38391cff6b773b971b70cff1bfb9273b88add

Parents:

08daea27a84f44a9dbd7b72264d2be8e866b559d

Message:

subtraction of int for 64bit

git-svn-id: file:///usr/local/Singular/svn/trunk@13662 2c84dea3-7e68-4137-9b89-c4e89433aadc

File:

• Singular/iparith.cc (modified) (2 diffs)

Singular/iparith.cc

@@ -698 +698 @@
 static BOOLEAN jjMINUS_I(leftv res, leftv u, leftv v)
 {
-  unsigned int a=(unsigned int)(unsigned long)u->Data();
-  unsigned int b=(unsigned int)(unsigned long)v->Data();
+  void *ap=u->Data(); void *bp=v->Data();
+  int aa=(int)(long)ap;
+  int bb=(int)(long)bp;
+  int cc=aa-bb;
+  unsigned int a=(unsigned int)(unsigned long)ap;
+  unsigned int b=(unsigned int)(unsigned long)bp;
   unsigned int c=a-b;
   if (((Sy_bit(31)&a)!=(Sy_bit(31)&b))&&((Sy_bit(31)&a)!=(Sy_bit(31)&c)))
@@ -705 +709 @@
     WarnS("int overflow(-), result may be wrong");
   }
-  res->data = (char *)((long)c);
+  res->data = (char *)((long)cc);
   return jjPLUSMINUS_Gen(res,u,v);
 }