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// Copyright 2017 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
use std::collections::VecDeque;
use test::{Bencher, black_box};
#[bench]
fn bench_new(b: &mut Bencher) {
b.iter(|| {
let ring: VecDeque<i32> = VecDeque::new();
black_box(ring);
})
}
#[bench]
fn bench_grow_1025(b: &mut Bencher) {
b.iter(|| {
let mut deq = VecDeque::new();
for i in 0..1025 {
deq.push_front(i);
}
black_box(deq);
})
}
#[bench]
fn bench_iter_1000(b: &mut Bencher) {
let ring: VecDeque<_> = (0..1000).collect();
b.iter(|| {
let mut sum = 0;
for &i in &ring {
sum += i;
}
black_box(sum);
})
}
#[bench]
fn bench_mut_iter_1000(b: &mut Bencher) {
let mut ring: VecDeque<_> = (0..1000).collect();
b.iter(|| {
let mut sum = 0;
for i in &mut ring {
sum += *i;
}
black_box(sum);
})
}
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