Merge branch '2018-benchmarking'

2018/Cargo.toml

@@ -9,3 +9,10 @@ clap = "2.32"
 regex = "1.1.0"
 chrono = "0.4.6"
 itertools = "0.7.11"
+
+[dev-dependencies]
+bencher = "0.1.5"
+
+[[bench]]
+name = "days"
+harness = false

2018/benches/days.rs

@@ -0,0 +1,77 @@
+extern crate aoc_2018;
+#[macro_use]
+extern crate bencher;
+
+use std::fs::File;
+use std::io::Read;
+
+use bencher::Bencher;
+
+use aoc_2018::get_impl;
+
+fn get_input(day: u32) -> Vec<u8> {
+    let filename = format!("inputs/{:02}.txt", day);
+
+    let mut buf = Vec::new();
+    let mut file = File::open(&filename).unwrap();
+
+    file.read_to_end(&mut buf).unwrap();
+
+    buf
+}
+
+fn test_part1(day: u32, bench: &mut Bencher) {
+    let input = get_input(day);
+    bench.iter(|| {
+        let mut instance = get_impl(day);
+        instance.part1(&mut input.as_slice())
+    })
+}
+
+fn test_part2(day: u32, bench: &mut Bencher) {
+    let input = get_input(day);
+    bench.iter(|| {
+        let mut instance = get_impl(day);
+        instance.part2(&mut input.as_slice())
+    })
+}
+
+macro_rules! day_bench {
+
+    ( $name:ident, $day:expr ) => {
+            pub mod $name {
+                use super::*;
+                pub fn part1(bench: & mut Bencher) {
+                test_part1( $day, bench);
+                }
+                pub fn part2(bench: & mut Bencher) {
+                test_part2( $day, bench);
+                }
+            }
+            benchmark_group!( $name, $name::part1, $name::part2);
+    };
+}
+
+day_bench!(day01, 1);
+day_bench!(day02, 2);
+day_bench!(day03, 3);
+day_bench!(day04, 4);
+day_bench!(day05, 5);
+day_bench!(day06, 6);
+day_bench!(day07, 7);
+day_bench!(day08, 8);
+day_bench!(day09, 9);
+day_bench!(day10, 10);
+day_bench!(day11, 11);
+day_bench!(day12, 12);
+day_bench!(day13, 13);
+day_bench!(day14, 14);
+day_bench!(day15, 15);
+day_bench!(day16, 16);
+day_bench!(day17, 17);
+day_bench!(day18, 18);
+
+benchmark_main!(day01, day02, day03, day04, day05,
+                day06, day07, day08, day09, day10,
+                day11, day12, day13, day14, day15,
+                day16, day17, day18);