dml/sqllite MDL-19644 - add sql_bitxor compatibility

fixes one unit test

diff --git a/lib/dml/sqlite3_pdo_moodle_database.php b/lib/dml/sqlite3_pdo_moodle_database.php
index 430b18185c3ff6d6eb90acd4323defcbeb54b8b9..2e9cd0cb01534828dcec24db6368d56540bffe9c 100644 (file)
--- a/lib/dml/sqlite3_pdo_moodle_database.php
+++ b/lib/dml/sqlite3_pdo_moodle_database.php
@@ -355,4 +355,16 @@ class sqlite3_pdo_moodle_database extends pdo_moodle_database {
         }
         return implode('||', $elements);
     }
+
+    /**
+     * Returns the SQL text to be used in order to perform one bitwise XOR operation
+     * between 2 integers.
+     *
+     * @param integer int1 first integer in the operation
+     * @param integer int2 second integer in the operation
+     * @return string the piece of SQL code to be used in your statement.
+     */
+    public function sql_bitxor($int1, $int2) {
+        return '( ~' . $this->sql_bitand($int1, $int2) . ' & ' . $this->sql_bitor($int1, $int2) . ')';
+    }
 }