pezkuwichain
c5461f2a87
- arrayvec.rs: Use concrete return types ([T], slice::Iter, slice::IterMut) instead of Self::Target/Self::IntoIter to avoid E0223 ambiguity introduced by the Receiver trait in Rust 1.87+ - char.rs: Explicitly import Result/Ok/Err from core for target_os=none where the standard prelude is not auto-injected
91 lines
1.9 KiB
Rust
91 lines
1.9 KiB
Rust
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extern crate arrayvec;
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#[macro_use] extern crate bencher;
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use arrayvec::ArrayString;
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use bencher::Bencher;
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fn try_push_c(b: &mut Bencher) {
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let mut v = ArrayString::<512>::new();
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b.iter(|| {
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v.clear();
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while v.try_push('c').is_ok() {
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}
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v.len()
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});
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b.bytes = v.capacity() as u64;
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}
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fn try_push_alpha(b: &mut Bencher) {
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let mut v = ArrayString::<512>::new();
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b.iter(|| {
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v.clear();
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while v.try_push('α').is_ok() {
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}
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v.len()
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});
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b.bytes = v.capacity() as u64;
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}
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// Yes, pushing a string char-by-char is slow. Use .push_str.
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fn try_push_string(b: &mut Bencher) {
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let mut v = ArrayString::<512>::new();
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let input = "abcαβγ“”";
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b.iter(|| {
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v.clear();
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for ch in input.chars().cycle() {
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if !v.try_push(ch).is_ok() {
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break;
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}
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}
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v.len()
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});
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b.bytes = v.capacity() as u64;
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}
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fn push_c(b: &mut Bencher) {
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let mut v = ArrayString::<512>::new();
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b.iter(|| {
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v.clear();
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while !v.is_full() {
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v.push('c');
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}
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v.len()
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});
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b.bytes = v.capacity() as u64;
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}
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fn push_alpha(b: &mut Bencher) {
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let mut v = ArrayString::<512>::new();
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b.iter(|| {
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v.clear();
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while !v.is_full() {
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v.push('α');
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}
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v.len()
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});
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b.bytes = v.capacity() as u64;
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}
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fn push_string(b: &mut Bencher) {
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let mut v = ArrayString::<512>::new();
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let input = "abcαβγ“”";
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b.iter(|| {
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v.clear();
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for ch in input.chars().cycle() {
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if !v.is_full() {
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v.push(ch);
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} else {
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break;
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}
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}
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v.len()
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});
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b.bytes = v.capacity() as u64;
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}
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benchmark_group!(benches, try_push_c, try_push_alpha, try_push_string, push_c,
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push_alpha, push_string);
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benchmark_main!(benches);
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