Changeset 56aaae in git for libpolys/polys/monomials/ring.cc

Timestamp:

Oct 28, 2013, 3:39:36 PM (10 years ago)

Author:

Hans Schoenemann <hannes@…>

Branches:

(u'spielwiese', 'fe61d9c35bf7c61f2b6cbf1b56e25e2f08d536cc')

Children:

d302d07c56cde53a3680353cb3985baaa2572f53

Parents:

215353e5dbc6e1393f0f2107ee3615f129b47538

Message:

fix: handle undefined rings in ssi (from master)

File:

• libpolys/polys/monomials/ring.cc (modified) (1 diff)

libpolys/polys/monomials/ring.cc

@@ -729 +729 @@
 char * rString(ring r)
 {
-  char *ch=rCharStr(r);
-  char *var=rVarStr(r);
-  char *ord=rOrdStr(r);
-  char *res=(char *)omAlloc(strlen(ch)+strlen(var)+strlen(ord)+9);
-  sprintf(res,"(%s),(%s),(%s)",ch,var,ord);
-  omFree((ADDRESS)ch);
-  omFree((ADDRESS)var);
-  omFree((ADDRESS)ord);
-  return res;
+  if (r!=NULL)
+  {
+    char *ch=rCharStr(r);
+    char *var=rVarStr(r);
+    char *ord=rOrdStr(r);
+    char *res=(char *)omAlloc(strlen(ch)+strlen(var)+strlen(ord)+9);
+    sprintf(res,"(%s),(%s),(%s)",ch,var,ord);
+    omFree((ADDRESS)ch);
+    omFree((ADDRESS)var);
+    omFree((ADDRESS)ord);
+    return res;
+  }
+  else
+    return omStrDup("NULL");
 }