--- loncom/homework/default_homework.lcpm	2001/12/21 21:37:26	1.44
+++ loncom/homework/default_homework.lcpm	2002/01/30 17:32:05	1.45
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA 
 # used by lonxml::xmlparse() as input variable $safeinit to Apache::run::run()
 #
-# $Id: default_homework.lcpm,v 1.44 2001/12/21 21:37:26 matthew Exp $
+# $Id: default_homework.lcpm,v 1.45 2002/01/30 17:32:05 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -101,6 +101,11 @@ sub caparesponse_check {
     $sig_ubound =15; #SIG_UB_DEFAULT
   } else {
     ($sig_lbound,$sig_ubound) = split /,/,$sig;
+    if (!$sig_lbound) {
+      $sig_lbound = 0; #SIG_LB_DEFAULT
+      $sig_ubound =15; #SIG_UB_DEFAULT
+    }
+    if (!$sig_ubound) { $sig_ubound=$sig_lbound; }
   }
   my $result = &caparesponse_capa_check_answer($response,$answer,$type,
 					       $tol_type,$tol,
@@ -238,6 +243,7 @@ sub random {
     srand($external::randomseed);
     $hidden::RANDOMINIT=1;
   }
+  if (!defined($step)) { $step=1; }
   my $num=1+int(($end-$start)/$step);
   my $result=$start + int(rand() * $num)*$step;
   return $result;