Log Message:
-----------
added check for $total==0 to eliminate potential DIV error (bug #855)
Modified Files:
--------------
webwork2/lib/WeBWorK/ContentGenerator:
Grades.pm
Revision Data
-------------
Index: Grades.pm
===================================================================
RCS file: /webwork/cvs/system/webwork2/lib/WeBWorK/ContentGenerator/Grades.pm,v
retrieving revision 1.18
retrieving revision 1.19
diff -Llib/WeBWorK/ContentGenerator/Grades.pm -Llib/WeBWorK/ContentGenerator/Grades.pm -u -r1.18 -r1.19
--- lib/WeBWorK/ContentGenerator/Grades.pm
+++ lib/WeBWorK/ContentGenerator/Grades.pm
@@ -337,7 +337,7 @@
my $avg_num_attempts = ($num_of_problems) ? $num_of_attempts/$num_of_problems : 0;
- my $successIndicator = ($avg_num_attempts) ? ($totalRight/$total)**2/$avg_num_attempts : 0 ;
+ my $successIndicator = ($avg_num_attempts && $total) ? ($totalRight/$total)**2/$avg_num_attempts : 0 ;
push @rows, CGI::Tr(
CGI::td(CGI::a({-href=>$act_as_student_set_url}, WeBWorK::ContentGenerator::underscore2nbsp($setName))),
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