From b5bfc150e3dcd5a7b29f7e8f17c77f20e016820d Mon Sep 17 00:00:00 2001
From: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
Date: Mon, 17 Mar 2008 11:55:46 -0700
Subject: [PATCH] add TypeId::IsChildOf

---
 src/core/type-id.cc | 10 ++++++++++
 src/core/type-id.h  |  2 ++
 2 files changed, 12 insertions(+)

diff --git a/src/core/type-id.cc b/src/core/type-id.cc
index 61a443edb..562cd7513 100644
--- a/src/core/type-id.cc
+++ b/src/core/type-id.cc
@@ -475,6 +475,16 @@ TypeId::GetParent (void) const
   uint16_t parent = Singleton<IidManager>::Get ()->GetParent (m_tid);
   return TypeId (parent);
 }
+bool 
+TypeId::IsChildOf (TypeId other) const
+{
+  TypeId tmp = *this;
+  while (tmp != other && tmp != tmp)
+    {
+      tmp = tmp.GetParent ();
+    }
+  return tmp == other;
+}
 std::string 
 TypeId::GetGroupName (void) const
 {
diff --git a/src/core/type-id.h b/src/core/type-id.h
index 4a4ffe8da..ab649e36c 100644
--- a/src/core/type-id.h
+++ b/src/core/type-id.h
@@ -90,6 +90,8 @@ public:
    */
   TypeId GetParent (void) const;
 
+  bool IsChildOf (TypeId other) const;
+
   /**
    * \returns the name of the group associated to this TypeId.
    */