1 // Copyright 2014 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution and at
3 // http://rust-lang.org/COPYRIGHT.
5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 // option. This file may not be copied, modified, or distributed
9 // except according to those terms.
12 use std::iter::{FromIterator, repeat};
13 use std::mem::size_of;
14 use std::vec::{Drain, IntoIter};
18 struct DropCounter<'a> {
22 impl<'a> Drop for DropCounter<'a> {
29 fn test_small_vec_struct() {
30 assert!(size_of::<Vec<u8>>() == size_of::<usize>() * 3);
34 fn test_double_drop() {
40 let (mut count_x, mut count_y) = (0, 0);
46 tv.x.push(DropCounter { count: &mut count_x });
47 tv.y.push(DropCounter { count: &mut count_y });
49 // If Vec had a drop flag, here is where it would be zeroed.
50 // Instead, it should rely on its internal state to prevent
51 // doing anything significant when dropped multiple times.
54 // Here tv goes out of scope, tv.y should be dropped, but not tv.x.
57 assert_eq!(count_x, 1);
58 assert_eq!(count_y, 1);
63 let mut v = Vec::new();
64 assert_eq!(v.capacity(), 0);
67 assert!(v.capacity() >= 2);
73 assert!(v.capacity() >= 16);
75 assert!(v.capacity() >= 32);
80 assert!(v.capacity() >= 33)
85 let mut v = Vec::new();
86 let mut w = Vec::new();
102 v.extend(w.clone()); // specializes to `append`
103 assert!(v.iter().eq(w.iter().chain(w.iter())));
107 fn test_extend_ref() {
108 let mut v = vec![1, 2];
109 v.extend(&[3, 4, 5]);
111 assert_eq!(v.len(), 5);
112 assert_eq!(v, [1, 2, 3, 4, 5]);
117 assert_eq!(v.len(), 7);
118 assert_eq!(v, [1, 2, 3, 4, 5, 6, 7]);
122 fn test_slice_from_mut() {
123 let mut values = vec![1, 2, 3, 4, 5];
125 let slice = &mut values[2..];
126 assert!(slice == [3, 4, 5]);
132 assert!(values == [1, 2, 5, 6, 7]);
136 fn test_slice_to_mut() {
137 let mut values = vec![1, 2, 3, 4, 5];
139 let slice = &mut values[..2];
140 assert!(slice == [1, 2]);
146 assert!(values == [2, 3, 3, 4, 5]);
150 fn test_split_at_mut() {
151 let mut values = vec![1, 2, 3, 4, 5];
153 let (left, right) = values.split_at_mut(2);
155 let left: &[_] = left;
156 assert!(&left[..left.len()] == &[1, 2]);
163 let right: &[_] = right;
164 assert!(&right[..right.len()] == &[3, 4, 5]);
171 assert_eq!(values, [2, 3, 5, 6, 7]);
176 let v: Vec<i32> = vec![];
177 let w = vec![1, 2, 3];
179 assert_eq!(v, v.clone());
183 // they should be disjoint in memory.
184 assert!(w.as_ptr() != z.as_ptr())
188 fn test_clone_from() {
190 let three: Vec<Box<_>> = vec![box 1, box 2, box 3];
191 let two: Vec<Box<_>> = vec![box 4, box 5];
193 v.clone_from(&three);
194 assert_eq!(v, three);
197 v.clone_from(&three);
198 assert_eq!(v, three);
205 v.clone_from(&three);
211 let mut vec = vec![1, 2, 3, 4];
212 vec.retain(|&x| x % 2 == 0);
213 assert_eq!(vec, [2, 4]);
217 fn zero_sized_values() {
218 let mut v = Vec::new();
219 assert_eq!(v.len(), 0);
221 assert_eq!(v.len(), 1);
223 assert_eq!(v.len(), 2);
224 assert_eq!(v.pop(), Some(()));
225 assert_eq!(v.pop(), Some(()));
226 assert_eq!(v.pop(), None);
228 assert_eq!(v.iter().count(), 0);
230 assert_eq!(v.iter().count(), 1);
232 assert_eq!(v.iter().count(), 2);
236 assert_eq!(v.iter_mut().count(), 2);
238 assert_eq!(v.iter_mut().count(), 3);
240 assert_eq!(v.iter_mut().count(), 4);
242 for &mut () in &mut v {}
246 assert_eq!(v.iter_mut().count(), 0);
250 fn test_partition() {
251 assert_eq!(vec![].into_iter().partition(|x: &i32| *x < 3),
253 assert_eq!(vec![1, 2, 3].into_iter().partition(|x| *x < 4),
254 (vec![1, 2, 3], vec![]));
255 assert_eq!(vec![1, 2, 3].into_iter().partition(|x| *x < 2),
256 (vec![1], vec![2, 3]));
257 assert_eq!(vec![1, 2, 3].into_iter().partition(|x| *x < 0),
258 (vec![], vec![1, 2, 3]));
262 fn test_zip_unzip() {
263 let z1 = vec![(1, 4), (2, 5), (3, 6)];
265 let (left, right): (Vec<_>, Vec<_>) = z1.iter().cloned().unzip();
267 assert_eq!((1, 4), (left[0], right[0]));
268 assert_eq!((2, 5), (left[1], right[1]));
269 assert_eq!((3, 6), (left[2], right[2]));
273 fn test_vec_truncate_drop() {
274 static mut drops: u32 = 0;
284 let mut v = vec![Elem(1), Elem(2), Elem(3), Elem(4), Elem(5)];
285 assert_eq!(unsafe { drops }, 0);
287 assert_eq!(unsafe { drops }, 2);
289 assert_eq!(unsafe { drops }, 5);
294 fn test_vec_truncate_fail() {
296 impl Drop for BadElem {
298 let BadElem(ref mut x) = *self;
300 panic!("BadElem panic: 0xbadbeef")
305 let mut v = vec![BadElem(1), BadElem(2), BadElem(0xbadbeef), BadElem(4)];
311 let vec = vec![1, 2, 3];
312 assert!(vec[1] == 2);
317 fn test_index_out_of_bounds() {
318 let vec = vec![1, 2, 3];
324 fn test_slice_out_of_bounds_1() {
325 let x = vec![1, 2, 3, 4, 5];
331 fn test_slice_out_of_bounds_2() {
332 let x = vec![1, 2, 3, 4, 5];
338 fn test_slice_out_of_bounds_3() {
339 let x = vec![1, 2, 3, 4, 5];
345 fn test_slice_out_of_bounds_4() {
346 let x = vec![1, 2, 3, 4, 5];
352 fn test_slice_out_of_bounds_5() {
353 let x = vec![1, 2, 3, 4, 5];
359 fn test_swap_remove_empty() {
360 let mut vec = Vec::<i32>::new();
365 fn test_move_items() {
366 let vec = vec![1, 2, 3];
367 let mut vec2 = vec![];
371 assert_eq!(vec2, [1, 2, 3]);
375 fn test_move_items_reverse() {
376 let vec = vec![1, 2, 3];
377 let mut vec2 = vec![];
378 for i in vec.into_iter().rev() {
381 assert_eq!(vec2, [3, 2, 1]);
385 fn test_move_items_zero_sized() {
386 let vec = vec![(), (), ()];
387 let mut vec2 = vec![];
391 assert_eq!(vec2, [(), (), ()]);
395 fn test_drain_items() {
396 let mut vec = vec![1, 2, 3];
397 let mut vec2 = vec![];
398 for i in vec.drain(..) {
402 assert_eq!(vec2, [1, 2, 3]);
406 fn test_drain_items_reverse() {
407 let mut vec = vec![1, 2, 3];
408 let mut vec2 = vec![];
409 for i in vec.drain(..).rev() {
413 assert_eq!(vec2, [3, 2, 1]);
417 fn test_drain_items_zero_sized() {
418 let mut vec = vec![(), (), ()];
419 let mut vec2 = vec![];
420 for i in vec.drain(..) {
424 assert_eq!(vec2, [(), (), ()]);
429 fn test_drain_out_of_bounds() {
430 let mut v = vec![1, 2, 3, 4, 5];
435 fn test_drain_range() {
436 let mut v = vec![1, 2, 3, 4, 5];
437 for _ in v.drain(4..) {
439 assert_eq!(v, &[1, 2, 3, 4]);
441 let mut v: Vec<_> = (1..6).map(|x| x.to_string()).collect();
442 for _ in v.drain(1..4) {
444 assert_eq!(v, &[1.to_string(), 5.to_string()]);
446 let mut v: Vec<_> = (1..6).map(|x| x.to_string()).collect();
447 for _ in v.drain(1..4).rev() {
449 assert_eq!(v, &[1.to_string(), 5.to_string()]);
451 let mut v: Vec<_> = vec![(); 5];
452 for _ in v.drain(1..4).rev() {
454 assert_eq!(v, &[(), ()]);
458 fn test_into_boxed_slice() {
459 let xs = vec![1, 2, 3];
460 let ys = xs.into_boxed_slice();
461 assert_eq!(&*ys, [1, 2, 3]);
466 let mut vec = vec![1, 2, 3];
467 let mut vec2 = vec![4, 5, 6];
468 vec.append(&mut vec2);
469 assert_eq!(vec, [1, 2, 3, 4, 5, 6]);
470 assert_eq!(vec2, []);
474 fn test_split_off() {
475 let mut vec = vec![1, 2, 3, 4, 5, 6];
476 let vec2 = vec.split_off(4);
477 assert_eq!(vec, [1, 2, 3, 4]);
478 assert_eq!(vec2, [5, 6]);
482 fn test_into_iter_as_slice() {
483 let vec = vec!['a', 'b', 'c'];
484 let mut into_iter = vec.into_iter();
485 assert_eq!(into_iter.as_slice(), &['a', 'b', 'c']);
486 let _ = into_iter.next().unwrap();
487 assert_eq!(into_iter.as_slice(), &['b', 'c']);
488 let _ = into_iter.next().unwrap();
489 let _ = into_iter.next().unwrap();
490 assert_eq!(into_iter.as_slice(), &[]);
494 fn test_into_iter_as_mut_slice() {
495 let vec = vec!['a', 'b', 'c'];
496 let mut into_iter = vec.into_iter();
497 assert_eq!(into_iter.as_slice(), &['a', 'b', 'c']);
498 into_iter.as_mut_slice()[0] = 'x';
499 into_iter.as_mut_slice()[1] = 'y';
500 assert_eq!(into_iter.next().unwrap(), 'x');
501 assert_eq!(into_iter.as_slice(), &['y', 'c']);
505 fn test_into_iter_debug() {
506 let vec = vec!['a', 'b', 'c'];
507 let into_iter = vec.into_iter();
508 let debug = format!("{:?}", into_iter);
509 assert_eq!(debug, "IntoIter(['a', 'b', 'c'])");
513 fn test_into_iter_count() {
514 assert_eq!(vec![1, 2, 3].into_iter().count(), 3);
518 fn test_into_iter_clone() {
519 fn iter_equal<I: Iterator<Item = i32>>(it: I, slice: &[i32]) {
520 let v: Vec<i32> = it.collect();
521 assert_eq!(&v[..], slice);
523 let mut it = vec![1, 2, 3].into_iter();
524 iter_equal(it.clone(), &[1, 2, 3]);
525 assert_eq!(it.next(), Some(1));
526 let mut it = it.rev();
527 iter_equal(it.clone(), &[3, 2]);
528 assert_eq!(it.next(), Some(3));
529 iter_equal(it.clone(), &[2]);
530 assert_eq!(it.next(), Some(2));
531 iter_equal(it.clone(), &[]);
532 assert_eq!(it.next(), None);
537 let borrowed: &[_] = &["borrowed", "(slice)"];
538 let owned = vec!["owned", "(vec)"];
539 match (Cow::from(owned.clone()), Cow::from(borrowed)) {
540 (Cow::Owned(o), Cow::Borrowed(b)) => assert!(o == owned && b == borrowed),
541 _ => panic!("invalid `Cow::from`"),
546 fn assert_covariance() {
547 fn drain<'new>(d: Drain<'static, &'static str>) -> Drain<'new, &'new str> { d }
548 fn into_iter<'new>(i: IntoIter<&'static str>) -> IntoIter<&'new str> { i }
552 fn bench_new(b: &mut Bencher) {
554 let v: Vec<u32> = Vec::new();
555 assert_eq!(v.len(), 0);
556 assert_eq!(v.capacity(), 0);
560 fn do_bench_with_capacity(b: &mut Bencher, src_len: usize) {
561 b.bytes = src_len as u64;
564 let v: Vec<u32> = Vec::with_capacity(src_len);
565 assert_eq!(v.len(), 0);
566 assert_eq!(v.capacity(), src_len);
571 fn bench_with_capacity_0000(b: &mut Bencher) {
572 do_bench_with_capacity(b, 0)
576 fn bench_with_capacity_0010(b: &mut Bencher) {
577 do_bench_with_capacity(b, 10)
581 fn bench_with_capacity_0100(b: &mut Bencher) {
582 do_bench_with_capacity(b, 100)
586 fn bench_with_capacity_1000(b: &mut Bencher) {
587 do_bench_with_capacity(b, 1000)
590 fn do_bench_from_fn(b: &mut Bencher, src_len: usize) {
591 b.bytes = src_len as u64;
594 let dst = (0..src_len).collect::<Vec<_>>();
595 assert_eq!(dst.len(), src_len);
596 assert!(dst.iter().enumerate().all(|(i, x)| i == *x));
601 fn bench_from_fn_0000(b: &mut Bencher) {
602 do_bench_from_fn(b, 0)
606 fn bench_from_fn_0010(b: &mut Bencher) {
607 do_bench_from_fn(b, 10)
611 fn bench_from_fn_0100(b: &mut Bencher) {
612 do_bench_from_fn(b, 100)
616 fn bench_from_fn_1000(b: &mut Bencher) {
617 do_bench_from_fn(b, 1000)
620 fn do_bench_from_elem(b: &mut Bencher, src_len: usize) {
621 b.bytes = src_len as u64;
624 let dst: Vec<usize> = repeat(5).take(src_len).collect();
625 assert_eq!(dst.len(), src_len);
626 assert!(dst.iter().all(|x| *x == 5));
631 fn bench_from_elem_0000(b: &mut Bencher) {
632 do_bench_from_elem(b, 0)
636 fn bench_from_elem_0010(b: &mut Bencher) {
637 do_bench_from_elem(b, 10)
641 fn bench_from_elem_0100(b: &mut Bencher) {
642 do_bench_from_elem(b, 100)
646 fn bench_from_elem_1000(b: &mut Bencher) {
647 do_bench_from_elem(b, 1000)
650 fn do_bench_from_slice(b: &mut Bencher, src_len: usize) {
651 let src: Vec<_> = FromIterator::from_iter(0..src_len);
653 b.bytes = src_len as u64;
656 let dst = src.clone()[..].to_vec();
657 assert_eq!(dst.len(), src_len);
658 assert!(dst.iter().enumerate().all(|(i, x)| i == *x));
663 fn bench_from_slice_0000(b: &mut Bencher) {
664 do_bench_from_slice(b, 0)
668 fn bench_from_slice_0010(b: &mut Bencher) {
669 do_bench_from_slice(b, 10)
673 fn bench_from_slice_0100(b: &mut Bencher) {
674 do_bench_from_slice(b, 100)
678 fn bench_from_slice_1000(b: &mut Bencher) {
679 do_bench_from_slice(b, 1000)
682 fn do_bench_from_iter(b: &mut Bencher, src_len: usize) {
683 let src: Vec<_> = FromIterator::from_iter(0..src_len);
685 b.bytes = src_len as u64;
688 let dst: Vec<_> = FromIterator::from_iter(src.clone());
689 assert_eq!(dst.len(), src_len);
690 assert!(dst.iter().enumerate().all(|(i, x)| i == *x));
695 fn bench_from_iter_0000(b: &mut Bencher) {
696 do_bench_from_iter(b, 0)
700 fn bench_from_iter_0010(b: &mut Bencher) {
701 do_bench_from_iter(b, 10)
705 fn bench_from_iter_0100(b: &mut Bencher) {
706 do_bench_from_iter(b, 100)
710 fn bench_from_iter_1000(b: &mut Bencher) {
711 do_bench_from_iter(b, 1000)
714 fn do_bench_extend(b: &mut Bencher, dst_len: usize, src_len: usize) {
715 let dst: Vec<_> = FromIterator::from_iter(0..dst_len);
716 let src: Vec<_> = FromIterator::from_iter(dst_len..dst_len + src_len);
718 b.bytes = src_len as u64;
721 let mut dst = dst.clone();
722 dst.extend(src.clone());
723 assert_eq!(dst.len(), dst_len + src_len);
724 assert!(dst.iter().enumerate().all(|(i, x)| i == *x));
729 fn bench_extend_0000_0000(b: &mut Bencher) {
730 do_bench_extend(b, 0, 0)
734 fn bench_extend_0000_0010(b: &mut Bencher) {
735 do_bench_extend(b, 0, 10)
739 fn bench_extend_0000_0100(b: &mut Bencher) {
740 do_bench_extend(b, 0, 100)
744 fn bench_extend_0000_1000(b: &mut Bencher) {
745 do_bench_extend(b, 0, 1000)
749 fn bench_extend_0010_0010(b: &mut Bencher) {
750 do_bench_extend(b, 10, 10)
754 fn bench_extend_0100_0100(b: &mut Bencher) {
755 do_bench_extend(b, 100, 100)
759 fn bench_extend_1000_1000(b: &mut Bencher) {
760 do_bench_extend(b, 1000, 1000)
763 fn do_bench_push_all(b: &mut Bencher, dst_len: usize, src_len: usize) {
764 let dst: Vec<_> = FromIterator::from_iter(0..dst_len);
765 let src: Vec<_> = FromIterator::from_iter(dst_len..dst_len + src_len);
767 b.bytes = src_len as u64;
770 let mut dst = dst.clone();
771 dst.extend_from_slice(&src);
772 assert_eq!(dst.len(), dst_len + src_len);
773 assert!(dst.iter().enumerate().all(|(i, x)| i == *x));
778 fn bench_push_all_0000_0000(b: &mut Bencher) {
779 do_bench_push_all(b, 0, 0)
783 fn bench_push_all_0000_0010(b: &mut Bencher) {
784 do_bench_push_all(b, 0, 10)
788 fn bench_push_all_0000_0100(b: &mut Bencher) {
789 do_bench_push_all(b, 0, 100)
793 fn bench_push_all_0000_1000(b: &mut Bencher) {
794 do_bench_push_all(b, 0, 1000)
798 fn bench_push_all_0010_0010(b: &mut Bencher) {
799 do_bench_push_all(b, 10, 10)
803 fn bench_push_all_0100_0100(b: &mut Bencher) {
804 do_bench_push_all(b, 100, 100)
808 fn bench_push_all_1000_1000(b: &mut Bencher) {
809 do_bench_push_all(b, 1000, 1000)
812 fn do_bench_push_all_move(b: &mut Bencher, dst_len: usize, src_len: usize) {
813 let dst: Vec<_> = FromIterator::from_iter(0..dst_len);
814 let src: Vec<_> = FromIterator::from_iter(dst_len..dst_len + src_len);
816 b.bytes = src_len as u64;
819 let mut dst = dst.clone();
820 dst.extend(src.clone());
821 assert_eq!(dst.len(), dst_len + src_len);
822 assert!(dst.iter().enumerate().all(|(i, x)| i == *x));
827 fn bench_push_all_move_0000_0000(b: &mut Bencher) {
828 do_bench_push_all_move(b, 0, 0)
832 fn bench_push_all_move_0000_0010(b: &mut Bencher) {
833 do_bench_push_all_move(b, 0, 10)
837 fn bench_push_all_move_0000_0100(b: &mut Bencher) {
838 do_bench_push_all_move(b, 0, 100)
842 fn bench_push_all_move_0000_1000(b: &mut Bencher) {
843 do_bench_push_all_move(b, 0, 1000)
847 fn bench_push_all_move_0010_0010(b: &mut Bencher) {
848 do_bench_push_all_move(b, 10, 10)
852 fn bench_push_all_move_0100_0100(b: &mut Bencher) {
853 do_bench_push_all_move(b, 100, 100)
857 fn bench_push_all_move_1000_1000(b: &mut Bencher) {
858 do_bench_push_all_move(b, 1000, 1000)
861 fn do_bench_clone(b: &mut Bencher, src_len: usize) {
862 let src: Vec<usize> = FromIterator::from_iter(0..src_len);
864 b.bytes = src_len as u64;
867 let dst = src.clone();
868 assert_eq!(dst.len(), src_len);
869 assert!(dst.iter().enumerate().all(|(i, x)| i == *x));
874 fn bench_clone_0000(b: &mut Bencher) {
879 fn bench_clone_0010(b: &mut Bencher) {
880 do_bench_clone(b, 10)
884 fn bench_clone_0100(b: &mut Bencher) {
885 do_bench_clone(b, 100)
889 fn bench_clone_1000(b: &mut Bencher) {
890 do_bench_clone(b, 1000)
893 fn do_bench_clone_from(b: &mut Bencher, times: usize, dst_len: usize, src_len: usize) {
894 let dst: Vec<_> = FromIterator::from_iter(0..src_len);
895 let src: Vec<_> = FromIterator::from_iter(dst_len..dst_len + src_len);
897 b.bytes = (times * src_len) as u64;
900 let mut dst = dst.clone();
903 dst.clone_from(&src);
905 assert_eq!(dst.len(), src_len);
906 assert!(dst.iter().enumerate().all(|(i, x)| dst_len + i == *x));
912 fn bench_clone_from_01_0000_0000(b: &mut Bencher) {
913 do_bench_clone_from(b, 1, 0, 0)
917 fn bench_clone_from_01_0000_0010(b: &mut Bencher) {
918 do_bench_clone_from(b, 1, 0, 10)
922 fn bench_clone_from_01_0000_0100(b: &mut Bencher) {
923 do_bench_clone_from(b, 1, 0, 100)
927 fn bench_clone_from_01_0000_1000(b: &mut Bencher) {
928 do_bench_clone_from(b, 1, 0, 1000)
932 fn bench_clone_from_01_0010_0010(b: &mut Bencher) {
933 do_bench_clone_from(b, 1, 10, 10)
937 fn bench_clone_from_01_0100_0100(b: &mut Bencher) {
938 do_bench_clone_from(b, 1, 100, 100)
942 fn bench_clone_from_01_1000_1000(b: &mut Bencher) {
943 do_bench_clone_from(b, 1, 1000, 1000)
947 fn bench_clone_from_01_0010_0100(b: &mut Bencher) {
948 do_bench_clone_from(b, 1, 10, 100)
952 fn bench_clone_from_01_0100_1000(b: &mut Bencher) {
953 do_bench_clone_from(b, 1, 100, 1000)
957 fn bench_clone_from_01_0010_0000(b: &mut Bencher) {
958 do_bench_clone_from(b, 1, 10, 0)
962 fn bench_clone_from_01_0100_0010(b: &mut Bencher) {
963 do_bench_clone_from(b, 1, 100, 10)
967 fn bench_clone_from_01_1000_0100(b: &mut Bencher) {
968 do_bench_clone_from(b, 1, 1000, 100)
972 fn bench_clone_from_10_0000_0000(b: &mut Bencher) {
973 do_bench_clone_from(b, 10, 0, 0)
977 fn bench_clone_from_10_0000_0010(b: &mut Bencher) {
978 do_bench_clone_from(b, 10, 0, 10)
982 fn bench_clone_from_10_0000_0100(b: &mut Bencher) {
983 do_bench_clone_from(b, 10, 0, 100)
987 fn bench_clone_from_10_0000_1000(b: &mut Bencher) {
988 do_bench_clone_from(b, 10, 0, 1000)
992 fn bench_clone_from_10_0010_0010(b: &mut Bencher) {
993 do_bench_clone_from(b, 10, 10, 10)
997 fn bench_clone_from_10_0100_0100(b: &mut Bencher) {
998 do_bench_clone_from(b, 10, 100, 100)
1002 fn bench_clone_from_10_1000_1000(b: &mut Bencher) {
1003 do_bench_clone_from(b, 10, 1000, 1000)
1007 fn bench_clone_from_10_0010_0100(b: &mut Bencher) {
1008 do_bench_clone_from(b, 10, 10, 100)
1012 fn bench_clone_from_10_0100_1000(b: &mut Bencher) {
1013 do_bench_clone_from(b, 10, 100, 1000)
1017 fn bench_clone_from_10_0010_0000(b: &mut Bencher) {
1018 do_bench_clone_from(b, 10, 10, 0)
1022 fn bench_clone_from_10_0100_0010(b: &mut Bencher) {
1023 do_bench_clone_from(b, 10, 100, 10)
1027 fn bench_clone_from_10_1000_0100(b: &mut Bencher) {
1028 do_bench_clone_from(b, 10, 1000, 100)