altos/scheme: Allow make-vector value param to be optional

It can default to #f

Signed-off-by: Keith Packard <keithp@keithp.com>

diff --git a/src/scheme/ao_scheme_builtin.c b/src/scheme/ao_scheme_builtin.c
index 1bfe6942b698dfc8ce6148e860a71d214f14842e..4cb8b901e7c425933470dc638576d5a4f0e9e8b8 100644 (file)
--- a/src/scheme/ao_scheme_builtin.c
+++ b/src/scheme/ao_scheme_builtin.c
@@ -1144,12 +1144,12 @@ ao_scheme_do_make_vector(struct ao_scheme_cons *cons)
 {
        int32_t k;
 
-       if (!ao_scheme_check_argc(_ao_scheme_atom_make2dvector, cons, 2, 2))
+       if (!ao_scheme_check_argc(_ao_scheme_atom_make2dvector, cons, 1, 2))
                return AO_SCHEME_NIL;
        k = ao_scheme_arg_int(_ao_scheme_atom_make2dvector, cons, 0);
        if (ao_scheme_exception)
                return AO_SCHEME_NIL;
-       return ao_scheme_vector_poly(ao_scheme_vector_alloc(k, ao_scheme_arg(cons, 1)));
+       return ao_scheme_vector_poly(ao_scheme_vector_alloc(k, ao_scheme_opt_arg(cons, 1, _ao_scheme_bool_false)));
 }
 
 ao_poly