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// In this case, the code should compile and should
// succeed at runtime
extern mod std;
use vec::{head, is_not_empty, last, same_length, zip};
fn enum_chars(start: u8, end: u8) -> ~[char] {
assert start < end;
let mut i = start;
let mut r = ~[];
while i <= end { r.push(i as char); i += 1u as u8; }
return r;
}
fn enum_uints(start: uint, end: uint) -> ~[uint] {
assert start < end;
let mut i = start;
let mut r = ~[];
while i <= end { r.push(i); i += 1u; }
return r;
}
fn main() {
let a = 'a' as u8, j = 'j' as u8, k = 1u, l = 10u;
let chars = enum_chars(a, j);
let ints = enum_uints(k, l);
let ps = zip(chars, ints);
assert (head(ps) == ('a', 1u));
assert (last(ps) == (j as char, 10u));
}
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