CAMLprim value ml_gsl_combination_valid(value vc) { int r; gsl_combination c; combi_of_val(&c, vc); r = gsl_combination_valid(&c); return Val_not(Val_bool(r)); }
CAMLprim value caml_string_notequal(value s1, value s2) { return Val_not(caml_string_equal(s1, s2)); }