From 98cef98111c4fbbe61b28970ae557d26bc146f37 Mon Sep 17 00:00:00 2001
From: Paul Beckingham <paul@beckingham.net>
Date: Mon, 12 Jul 2010 20:19:02 -0400
Subject: [PATCH] Dependencies - depend on self

- Prevented tasks from being specified as depending on themselves.
---
 src/Task.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/Task.cpp b/src/Task.cpp
index ccf07e789..6b89c02bc 100644
--- a/src/Task.cpp
+++ b/src/Task.cpp
@@ -470,6 +470,9 @@ void Task::removeAnnotations ()
 ////////////////////////////////////////////////////////////////////////////////
 void Task::addDependency (int id)
 {
+  if (id == this->id)
+    throw std::string ("A task cannot be dependent on itself.");
+
   std::string uuid = context.tdb.uuid (id);
   if (uuid == "")
   {