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Avoid allocations when parsing strings by line

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Bert Peters
2020-12-05 13:37:21 +01:00
parent b38a1ddff9
commit 26c7d67077
3 changed files with 58 additions and 21 deletions
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5
2020/src/day05.rs
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@@ -1,7 +1,6 @@
use std::io::BufRead;
use std::io::BufReader;
use std::io::Read;
use crate::common::Lines;
use crate::Solution;
fn seat_id(boarding_pass: &str) -> u32 {
@@ -11,7 +10,7 @@ fn seat_id(boarding_pass: &str) -> u32 {
}
fn seat_iter<'a>(input: &'a mut dyn Read) -> impl Iterator<Item = u32> + 'a {
BufReader::new(input).lines().map(|s| seat_id(&s.unwrap()))
Lines::new(input).map(|s| seat_id(&s))
}
#[derive(Default)]