use std; import vec; fn vec_equal(v: [T], u: [T], element_equality_test: fn(T, T) -> bool) -> bool { let Lv = vec::len(v); if Lv != vec::len(u) { ret false; } let i = 0u; while i < Lv { if !element_equality_test(v[i], u[i]) { ret false; } i += 1u; } ret true; } fn builtin_equal(a: T, b: T) -> bool { ret a == b; } fn main() { assert (builtin_equal(5, 5)); assert (!builtin_equal(5, 4)); assert (!vec_equal([5, 5], [5], builtin_equal)); assert (!vec_equal([5, 5], [5, 4], builtin_equal)); assert (!vec_equal([5, 5], [4, 5], builtin_equal)); assert (vec_equal([5, 5], [5, 5], builtin_equal)); log_err "Pass"; }