X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Ftab.c;h=201f0d8221c45f29c3c96391577299561a0dc242;hb=067d02c2b8c591efc368cf5127c497313d7a373f;hp=8afb8f0be0e3793d85675de5dc6fd5d87867e6b2;hpb=06f9ee45954e5e71fa7f6262dbf37defa1dbf996;p=pspp

diff --git a/src/tab.c b/src/tab.c
index 8afb8f0be0..201f0d8221 100644
--- a/src/tab.c
+++ b/src/tab.c
@@ -210,6 +210,12 @@ void
 tab_headers (struct tab_table *table, int l, int r, int t, int b)
 {
   assert (table != NULL);
+  assert (l < table->nc);
+  assert (r < table->nc);
+  assert (t < table->nr);
+  assert (b < table->nr);
+
+
   table->l = l;
   table->r = r;
   table->t = t;
@@ -862,11 +868,12 @@ tab_flags (struct tab_table *t, unsigned flags)
 void
 tab_submit (struct tab_table *t)
 {
-  struct som_table s;
+  struct som_entity s;
 
   assert (t != NULL);
   s.class = &tab_table_class;
   s.ext = t;
+  s.type = SOM_TABLE;
   som_submit (&s);
   tab_destroy (t);
 }
@@ -921,9 +928,11 @@ int tab_hit;
 
 /* Set the current table to TABLE. */
 static void
-tabi_table (struct som_table *table)
+tabi_table (struct som_entity *table)
 {
   assert (table != NULL);
+  assert (table->type == SOM_TABLE);
+
   t = table->ext;
   tab_offset (t, 0, 0);