int32_t ref;
if (!ao_scheme_check_argc(_ao_scheme_atom_string2dref, cons, 2, 2))
return AO_SCHEME_NIL;
if (!ao_scheme_check_argt(_ao_scheme_atom_string2dref, cons, 0, AO_SCHEME_STRING, 0))
return AO_SCHEME_NIL;
ref = ao_scheme_arg_int(_ao_scheme_atom_string2dref, cons, 1);
int32_t ref;
if (!ao_scheme_check_argc(_ao_scheme_atom_string2dref, cons, 2, 2))
return AO_SCHEME_NIL;
if (!ao_scheme_check_argt(_ao_scheme_atom_string2dref, cons, 0, AO_SCHEME_STRING, 0))
return AO_SCHEME_NIL;
ref = ao_scheme_arg_int(_ao_scheme_atom_string2dref, cons, 1);