--- a/src/data.cc	Wed Jan 03 20:15:16 2007 +0000
+++ b/src/data.cc	Wed Jan 03 20:59:28 2007 +0000
@@ -1239,6 +1239,25 @@
 
 DEFALIAS (islogical, isbool);
 
+DEFUN (isinteger, args, ,
+  "-*- texinfo -*-\n\
+@deftypefn {Built-in Function} {} isreal (@var{x})\n\
+Return true if @var{x} is an integer object (int8, uint8, int16, etc.).\n\
+Note that @code{isinteger (14)} is false because numeric constants in\n\
+are double precision floating point values.\n\
+@seealso{isreal, isnumeric, class, isa}\n\
+@end deftypefn")
+{
+  octave_value retval;
+
+  if (args.length () == 1)
+    retval = args(0).is_integer_type ();
+  else
+    print_usage ();
+
+  return retval;
+}
+
 DEFUN (iscomplex, args, ,
   "-*- texinfo -*-\n\
 @deftypefn {Built-in Function} {} iscomplex (@var{x})\n\
@@ -1375,7 +1394,6 @@
   return retval;
 }
 
-
 DEFUN (isreal, args, ,
   "-*- texinfo -*-\n\
 @deftypefn {Built-in Function} {} isreal (@var{x})\n\