X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fgrob-array-scheme.cc;h=2f472af3e45e7945a83a9f5b536aff14c4c17228;hb=5b4b0d6e9a197e8f9eb085b7c2ad78b8be3e5cfc;hp=e408a39b36ccf20c43e54c55b9ba8fbac1398038;hpb=7ba314d34db2c69e7b87bb926705863c80aeb99f;p=lilypond.git

diff --git a/lily/grob-array-scheme.cc b/lily/grob-array-scheme.cc
index e408a39b36..2f472af3e4 100644
--- a/lily/grob-array-scheme.cc
+++ b/lily/grob-array-scheme.cc
@@ -3,7 +3,7 @@
 
   source file of the GNU LilyPond music typesetter
 
-  (c) 2005 Han-Wen Nienhuys <hanwen@xs4all.nl>
+  (c) 2005--2008 Han-Wen Nienhuys <hanwen@xs4all.nl>
 
 */
 
@@ -13,10 +13,11 @@
 LY_DEFINE (ly_grob_array_length, "ly:grob-array-length",
 	   1, 0, 0,
 	   (SCM grob_arr),
-	   "Return the grob_array length.")
+	   "Return the length of @var{grob-arr}.")
 {
+  LY_ASSERT_SMOB (Grob_array, grob_arr, 1);
+
   Grob_array *me = unsmob_grob_array (grob_arr);
-  SCM_ASSERT_TYPE (me, grob_arr, SCM_ARG1, __FUNCTION__, "Grob_array");
   return  scm_from_int (me->size ());
 }
 
@@ -24,17 +25,15 @@ LY_DEFINE (ly_grob_array_length, "ly:grob-array-length",
 LY_DEFINE (ly_grob_array_ref, "ly:grob-array-ref",
 	   2, 0, 0,
 	   (SCM grob_arr, SCM index),
-	   "Retrieve the @code{index} element of @code{grob-arr}.")
+	   "Retrieve the @var{index}th element of @var{grob-arr}.")
 {
   Grob_array *me = unsmob_grob_array (grob_arr);
-  SCM_ASSERT_TYPE (me, grob_arr, SCM_ARG1, __FUNCTION__, "Grob_array");
-  SCM_ASSERT_TYPE (scm_is_integer (index), index, SCM_ARG2, __FUNCTION__, "integer");
-
-  int i = scm_to_int (index);
-  if (i < 0 || i >= me->size ())
-    {
-      scm_out_of_range (NULL, scm_from_int (i)); 
-    }
+  LY_ASSERT_SMOB (Grob_array, grob_arr, 1);
+  LY_ASSERT_TYPE (scm_is_integer, index, 2);
+
+  vsize i = scm_to_unsigned (index);
+  if (i == VPOS || i >= me->size ())
+    scm_out_of_range (NULL, scm_from_unsigned (i)); 
   
   return me->grob (i)->self_scm ();
 }