use new sorting function SCIPsortRealPtrPtr()

Author: pfetsch

src/scip/cons_cardinality.c

@@ -3745,21 +3745,11 @@ SCIP_RETCODE SCIPcreateConsCardinality(
       /* check weights */
       if( weights != NULL )
       {
-         int* dummy;
-
          /* store weights */
          SCIP_CALL( SCIPduplicateBlockMemoryArray(scip, &consdata->weights, weights, nvars) );
 
-         /* create dummy array to make code compatible with SCIP 3.2.0
-          * (the function SCIPsortRealPtrPtr() is not available) */
-         SCIP_CALL( SCIPallocBufferArray(scip, &dummy, nvars) );
-         for( v = 0; v < nvars; ++v )
-            dummy[v] = 0;
-
          /* sort variables - ascending order */
-         SCIPsortRealPtrPtrInt(consdata->weights, (void**)consdata->vars, (void**)consdata->indvars, dummy, nvars);
-
-         SCIPfreeBufferArray(scip, &dummy);
+         SCIPsortRealPtrPtr(consdata->weights, (void**)consdata->vars, (void**)consdata->indvars, nvars);
       }
    }
    else