removed assertment about rtree->root being NULL, so this function can be

Sun Jan 17 17:15:59 1999  Tim Janik  <timj@gtk.org>

        * gtree.c (g_tree_traverse): removed assertment about rtree->root being
        NULL, so this function can be applied to unpopulated trees as well, fix
        provided by Simon Kagedal <sika8225@csd.uu.se>.

10 files changed, 64 insertions, 8 deletions

diff --git a/ChangeLog b/ChangeLog
index 10f5ec23a..0cc27237d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+Sun Jan 17 17:15:59 1999  Tim Janik  <timj@gtk.org>
+
+	* gtree.c (g_tree_traverse): removed assertment about rtree->root being
+	NULL, so this function can be applied to unpopulated trees as well, fix
+	provided by Simon Kagedal <sika8225@csd.uu.se>.
+
 Sun Jan 17 11:17:19 1999 Christopher Blizzard  <blizzard@appliedtheory.com>
 
 	* glib.spec: add packager address
diff --git a/ChangeLog.pre-2-0 b/ChangeLog.pre-2-0
index 10f5ec23a..0cc27237d 100644
--- a/ChangeLog.pre-2-0
+++ b/ChangeLog.pre-2-0
@@ -1,3 +1,9 @@
+Sun Jan 17 17:15:59 1999  Tim Janik  <timj@gtk.org>
+
+	* gtree.c (g_tree_traverse): removed assertment about rtree->root being
+	NULL, so this function can be applied to unpopulated trees as well, fix
+	provided by Simon Kagedal <sika8225@csd.uu.se>.
+
 Sun Jan 17 11:17:19 1999 Christopher Blizzard  <blizzard@appliedtheory.com>
 
 	* glib.spec: add packager address
diff --git a/ChangeLog.pre-2-10 b/ChangeLog.pre-2-10
index 10f5ec23a..0cc27237d 100644
--- a/ChangeLog.pre-2-10
+++ b/ChangeLog.pre-2-10
@@ -1,3 +1,9 @@
+Sun Jan 17 17:15:59 1999  Tim Janik  <timj@gtk.org>
+
+	* gtree.c (g_tree_traverse): removed assertment about rtree->root being
+	NULL, so this function can be applied to unpopulated trees as well, fix
+	provided by Simon Kagedal <sika8225@csd.uu.se>.
+
 Sun Jan 17 11:17:19 1999 Christopher Blizzard  <blizzard@appliedtheory.com>
 
 	* glib.spec: add packager address
diff --git a/ChangeLog.pre-2-12 b/ChangeLog.pre-2-12
index 10f5ec23a..0cc27237d 100644
--- a/ChangeLog.pre-2-12
+++ b/ChangeLog.pre-2-12
@@ -1,3 +1,9 @@
+Sun Jan 17 17:15:59 1999  Tim Janik  <timj@gtk.org>
+
+	* gtree.c (g_tree_traverse): removed assertment about rtree->root being
+	NULL, so this function can be applied to unpopulated trees as well, fix
+	provided by Simon Kagedal <sika8225@csd.uu.se>.
+
 Sun Jan 17 11:17:19 1999 Christopher Blizzard  <blizzard@appliedtheory.com>
 
 	* glib.spec: add packager address
diff --git a/ChangeLog.pre-2-2 b/ChangeLog.pre-2-2
index 10f5ec23a..0cc27237d 100644
--- a/ChangeLog.pre-2-2
+++ b/ChangeLog.pre-2-2
@@ -1,3 +1,9 @@
+Sun Jan 17 17:15:59 1999  Tim Janik  <timj@gtk.org>
+
+	* gtree.c (g_tree_traverse): removed assertment about rtree->root being
+	NULL, so this function can be applied to unpopulated trees as well, fix
+	provided by Simon Kagedal <sika8225@csd.uu.se>.
+
 Sun Jan 17 11:17:19 1999 Christopher Blizzard  <blizzard@appliedtheory.com>
 
 	* glib.spec: add packager address
diff --git a/ChangeLog.pre-2-4 b/ChangeLog.pre-2-4
index 10f5ec23a..0cc27237d 100644
--- a/ChangeLog.pre-2-4
+++ b/ChangeLog.pre-2-4
@@ -1,3 +1,9 @@
+Sun Jan 17 17:15:59 1999  Tim Janik  <timj@gtk.org>
+
+	* gtree.c (g_tree_traverse): removed assertment about rtree->root being
+	NULL, so this function can be applied to unpopulated trees as well, fix
+	provided by Simon Kagedal <sika8225@csd.uu.se>.
+
 Sun Jan 17 11:17:19 1999 Christopher Blizzard  <blizzard@appliedtheory.com>
 
 	* glib.spec: add packager address
diff --git a/ChangeLog.pre-2-6 b/ChangeLog.pre-2-6
index 10f5ec23a..0cc27237d 100644
--- a/ChangeLog.pre-2-6
+++ b/ChangeLog.pre-2-6
@@ -1,3 +1,9 @@
+Sun Jan 17 17:15:59 1999  Tim Janik  <timj@gtk.org>
+
+	* gtree.c (g_tree_traverse): removed assertment about rtree->root being
+	NULL, so this function can be applied to unpopulated trees as well, fix
+	provided by Simon Kagedal <sika8225@csd.uu.se>.
+
 Sun Jan 17 11:17:19 1999 Christopher Blizzard  <blizzard@appliedtheory.com>
 
 	* glib.spec: add packager address
diff --git a/ChangeLog.pre-2-8 b/ChangeLog.pre-2-8
index 10f5ec23a..0cc27237d 100644
--- a/ChangeLog.pre-2-8
+++ b/ChangeLog.pre-2-8
@@ -1,3 +1,9 @@
+Sun Jan 17 17:15:59 1999  Tim Janik  <timj@gtk.org>
+
+	* gtree.c (g_tree_traverse): removed assertment about rtree->root being
+	NULL, so this function can be applied to unpopulated trees as well, fix
+	provided by Simon Kagedal <sika8225@csd.uu.se>.
+
 Sun Jan 17 11:17:19 1999 Christopher Blizzard  <blizzard@appliedtheory.com>
 
 	* glib.spec: add packager address
diff --git a/glib/gtree.c b/glib/gtree.c
index 0fbf62f80..5b4e342bb 100644
--- a/glib/gtree.c
+++ b/glib/gtree.c
@@ -218,7 +218,8 @@ g_tree_traverse (GTree         *tree,
 
   rtree = (GRealTree*) tree;
 
-  g_return_if_fail (rtree->root != NULL);
+  if (!rtree->root)
+    return;
 
   switch (traverse_type)
     {
@@ -253,7 +254,8 @@ g_tree_search (GTree       *tree,
 
   if (rtree->root)
     return g_tree_node_search (rtree->root, search_func, data);
-  return NULL;
+  else
+    return NULL;
 }
 
 gint
@@ -267,7 +269,8 @@ g_tree_height (GTree *tree)
 
   if (rtree->root)
     return g_tree_node_height (rtree->root);
-  return 0;
+  else
+    return 0;
 }
 
 gint
@@ -281,7 +284,8 @@ g_tree_nnodes (GTree *tree)
 
   if (rtree->root)
     return g_tree_node_count (rtree->root);
-  return 0;
+  else
+    return 0;
 }
 
 static GTreeNode*
diff --git a/gtree.c b/gtree.c
index 0fbf62f80..5b4e342bb 100644
--- a/gtree.c
+++ b/gtree.c
@@ -218,7 +218,8 @@ g_tree_traverse (GTree         *tree,
 
   rtree = (GRealTree*) tree;
 
-  g_return_if_fail (rtree->root != NULL);
+  if (!rtree->root)
+    return;
 
   switch (traverse_type)
     {
@@ -253,7 +254,8 @@ g_tree_search (GTree       *tree,
 
   if (rtree->root)
     return g_tree_node_search (rtree->root, search_func, data);
-  return NULL;
+  else
+    return NULL;
 }
 
 gint
@@ -267,7 +269,8 @@ g_tree_height (GTree *tree)
 
   if (rtree->root)
     return g_tree_node_height (rtree->root);
-  return 0;
+  else
+    return 0;
 }
 
 gint
@@ -281,7 +284,8 @@ g_tree_nnodes (GTree *tree)
 
   if (rtree->root)
     return g_tree_node_count (rtree->root);
-  return 0;
+  else
+    return 0;
 }
 
 static GTreeNode*