73 lines
1.7 KiB
Rust
73 lines
1.7 KiB
Rust
// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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// xfail-fast
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#[legacy_modes];
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use cmp::Eq;
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fn iter<T>(v: ~[T], it: fn(T) -> bool) {
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let mut i = 0u, l = v.len();
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while i < l {
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if !it(v[i]) { break; }
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i += 1u;
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}
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}
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fn find_pos<T:Eq Copy>(n: T, h: ~[T]) -> Option<uint> {
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let mut i = 0u;
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for iter(copy h) |e| {
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if e == n { return Some(i); }
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i += 1u;
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}
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None
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}
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fn bail_deep(x: ~[~[bool]]) {
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let mut seen = false;
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for iter(copy x) |x| {
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for iter(copy x) |x| {
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assert !seen;
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if x { seen = true; return; }
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}
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}
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assert !seen;
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}
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fn ret_deep() -> ~str {
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for iter(~[1, 2]) |e| {
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for iter(~[3, 4]) |x| {
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if e + x > 4 { return ~"hi"; }
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}
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}
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return ~"bye";
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}
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fn main() {
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let mut last = 0;
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for vec::all(~[1, 2, 3, 4, 5, 6, 7]) |e| {
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last = *e;
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if *e == 5 { break; }
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if *e % 2 == 1 { loop; }
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assert *e % 2 == 0;
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};
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assert last == 5;
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assert find_pos(1, ~[0, 1, 2, 3]) == Some(1u);
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assert find_pos(1, ~[0, 4, 2, 3]) == None;
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assert find_pos(~"hi", ~[~"foo", ~"bar", ~"baz", ~"hi"]) == Some(3u);
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bail_deep(~[~[false, false], ~[true, true], ~[false, true]]);
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bail_deep(~[~[true]]);
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bail_deep(~[~[false, false, false]]);
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assert ret_deep() == ~"hi";
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}
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