From 5255100dac824343e140b04365954c4612e29b2c Mon Sep 17 00:00:00 2001
From: Tim Hunt <T.J.Hunt@open.ac.uk>
Date: Wed, 9 Nov 2011 12:51:01 +0000
Subject: [PATCH] MDL-30199 qtype numerical etc. Don't require tolerance for
 answer *.

---
 question/type/numerical/edit_numerical_form.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/question/type/numerical/edit_numerical_form.php b/question/type/numerical/edit_numerical_form.php
index 512f6949581..2775ef0b8d5 100644
--- a/question/type/numerical/edit_numerical_form.php
+++ b/question/type/numerical/edit_numerical_form.php
@@ -264,7 +264,7 @@ class qtype_numerical_edit_form extends question_edit_form {
                 if ($data['fraction'][$key] == 1) {
                     $maxgrade = true;
                 }
-                if (!is_numeric($data['tolerance'][$key])) {
+                if ($answer !== '*' && !is_numeric($data['tolerance'][$key])) {
                     $errors['tolerance['.$key.']'] =
                             get_string('mustbenumeric', 'qtype_calculated');
                 }