Lisp_Object vector;
Lisp_Object n;
CHECK_SYMBOL (purpose, 1);
- n = Fget (purpose, Qchar_table_extra_slots);
+ /* For a deeper char-table, PURPOSE can be nil. */
+ n = NILP (purpose) ? 0 : Fget (purpose, Qchar_table_extra_slots);
CHECK_NUMBER (n, 0);
if (XINT (n) < 0 || XINT (n) > 10)
args_out_of_range (n, Qnil);
length_in_elts = (XFASTINT (length) + bits_per_value - 1) / bits_per_value;
length_in_chars = length_in_elts * sizeof (EMACS_INT);
- val = Fmake_vector (make_number (length_in_elts), Qnil);
+ /* We must allocate one more elements than LENGTH_IN_ELTS for the
+ slot `size' of the struct Lisp_Bool_Vector. */
+ val = Fmake_vector (make_number (length_in_elts + 1), Qnil);
p = XBOOL_VECTOR (val);
/* Get rid of any bits that would cause confusion. */
p->vector_size = 0;