rust/library/core/benches/num/flt2dec/mod.rs

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mod strategy {
mod dragon;
mod grisu;
}
use core::num::flt2dec::MAX_SIG_DIGITS;
use core::num::flt2dec::{decode, DecodableFloat, Decoded, FullDecoded};
use std::io::Write;
use std::vec::Vec;
use test::Bencher;
pub fn decode_finite<T: DecodableFloat>(v: T) -> Decoded {
match decode(v).1 {
FullDecoded::Finite(decoded) => decoded,
full_decoded => panic!("expected finite, got {full_decoded:?} instead"),
}
}
#[bench]
fn bench_small_shortest(b: &mut Bencher) {
let mut buf = Vec::with_capacity(20);
b.iter(|| {
buf.clear();
write!(&mut buf, "{}", 3.1415926f64).unwrap()
});
}
#[bench]
fn bench_big_shortest(b: &mut Bencher) {
let mut buf = Vec::with_capacity(300);
b.iter(|| {
buf.clear();
write!(&mut buf, "{}", f64::MAX).unwrap()
});
}