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extern crate arrayvec;
#[macro_use] extern crate bencher;
use arrayvec::ArrayString;
use bencher::Bencher;
fn try_push_c(b: &mut Bencher) {
let mut v = ArrayString::<[u8; 512]>::new();
b.iter(|| {
v.clear();
while v.try_push('c').is_ok() {
}
v.len()
});
b.bytes = v.capacity() as u64;
}
fn try_push_alpha(b: &mut Bencher) {
let mut v = ArrayString::<[u8; 512]>::new();
b.iter(|| {
v.clear();
while v.try_push('α').is_ok() {
}
v.len()
});
b.bytes = v.capacity() as u64;
}
// Yes, pushing a string char-by-char is slow. Use .push_str.
fn try_push_string(b: &mut Bencher) {
let mut v = ArrayString::<[u8; 512]>::new();
let input = "abcαβγ“”";
b.iter(|| {
v.clear();
for ch in input.chars().cycle() {
if !v.try_push(ch).is_ok() {
break;
}
}
v.len()
});
b.bytes = v.capacity() as u64;
}
fn push_c(b: &mut Bencher) {
let mut v = ArrayString::<[u8; 512]>::new();
b.iter(|| {
v.clear();
while !v.is_full() {
v.push('c');
}
v.len()
});
b.bytes = v.capacity() as u64;
}
fn push_alpha(b: &mut Bencher) {
let mut v = ArrayString::<[u8; 512]>::new();
b.iter(|| {
v.clear();
while !v.is_full() {
v.push('α');
}
v.len()
});
b.bytes = v.capacity() as u64;
}
fn push_string(b: &mut Bencher) {
let mut v = ArrayString::<[u8; 512]>::new();
let input = "abcαβγ“”";
b.iter(|| {
v.clear();
for ch in input.chars().cycle() {
if !v.is_full() {
v.push(ch);
} else {
break;
}
}
v.len()
});
b.bytes = v.capacity() as u64;
}
benchmark_group!(benches, try_push_c, try_push_alpha, try_push_string, push_c,
push_alpha, push_string);
benchmark_main!(benches);
|
