Changeset 5d258e9 in git

Timestamp:

Aug 23, 2013, 5:02:40 PM (10 years ago)

Author:

Janko Boehm <boehm@…>

Branches:

(u'jengelh-datetime', 'ceac47cbc86fe4a15902392bdbb9bd2ae0ea02c6')(u'spielwiese', 'f875bbaccd0831e36aaed09ff6adeb3eb45aeb94')

Children:

d55b3c24490789ff86cd0aeefd67f1eda2fd8ccf

Parents:

12f6ce0e6bfb8dc07844936aaca9a865a3593bf3

git-author:

Janko Boehm <boehm@mathematik.uni-kl.de>2013-08-23 17:02:40+02:00

git-committer:

Janko Boehm <boehm@mathematik.uni-kl.de>2013-09-03 19:36:12+02:00

Message:

fixed problem of diff with cancellation of rational function NULL

File:

• libpolys/polys/ext_fields/transext.cc (modified) (2 diffs)

libpolys/polys/ext_fields/transext.cc

@@ -772 +772 @@
   poly f = p_Copy(DEN(fa), ntRing);
   poly dg =p_Diff(g,k,ntRing);
-
   if (DENIS1(fa)) {
 
@@ -789 +788 @@
   DEN(result) = p_Mult_q(p_Copy(f,ntRing), f, ntRing);
   COM(result) = COM(fa) + COM(fa) + DIFF_COMPLEXITY;
+  if (NUM(result)==NULL) return(NULL);
   heuristicGcdCancellation((number)result, cf);