[glib] g_object_new(): skip varargs for simple calls

[Benjamin Otte <otte src gnome org>]

commit f4ccd96ea1a137eb0c533f177ff87290a84ee0d5
Author: Kamal Mostafa <kamal whence com>
Date:   Fri Jan 1 20:36:28 2010 -0800

    g_object_new(): skip varargs for simple calls
    
    g_object_new() avoids useless varargs processing for simple calls with no
    properties.  Fixes https://bugzilla.gnome.org/show_bug.cgi?id=605883

 gobject/gobject.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/gobject/gobject.c b/gobject/gobject.c
index 58554c3..bd63152 100644
--- a/gobject/gobject.c
+++ b/gobject/gobject.c
@@ -1087,6 +1087,10 @@ g_object_new (GType	   object_type,
   
   g_return_val_if_fail (G_TYPE_IS_OBJECT (object_type), NULL);
   
+  /* short circuit for calls supplying no properties */
+  if (!first_property_name)
+    return g_object_newv (object_type, 0, NULL);
+
   va_start (var_args, first_property_name);
   object = g_object_new_valist (object_type, first_property_name, var_args);
   va_end (var_args);