James Coglan jcoglan

benchmark: `reduce()`, `filter()`, `map()`, transducers and `for` loops

reduce()        10            x 574,156 ops/sec ±1.34% (86 runs sampled)
reduce()       100            x 42,746 ops/sec ±1.99% (88 runs sampled)
reduce()     1,000            x 781 ops/sec ±1.61% (88 runs sampled)

filter() & map()        10    x 128,652 ops/sec ±1.21% (87 runs sampled)
filter() & map()       100    x 9,537 ops/sec ±1.22% (90 runs sampled)
filter() & map()     1,000    x 256 ops/sec ±1.07% (81 runs sampled)

filter() & map() 10,000 x 67.54 ops/sec ±2.56% (68 runs sampled)

Rust types reference

Prelude

std::borrow::ToOwned
std::boxed::Box
std::clone::Clone
std::cmp::{PartialEq, PartialOrd, Eq, Ord}
std::convert::{AsRef, AsMut, Into, From}
std::default::Default

	def combos(items, k, s = 0, combo = [])
	return [combo] if k == 0

	(s .. items.size - k).flat_map do \|i\|
	combos(items, k - 1, i + 1, combo + [items[i]])
	end
	end

	combos([:a, :b, :c, :d, :e, :f], 3).each do \|combo\|
	p combo

	input_path = File.expand_path('../input.txt', __FILE__)
	masses = File.read(input_path).lines.map(&:to_i)

	def fuel(mass)
	(mass / 3.0).floor - 2
	end

	p masses.reduce(0) { \|s, m\| s + fuel(m) }

	def required_fuel(init)

	require_relative "./base"
	require_relative "../diff"
	require_relative "../rev_list"

	module Command
	class Blame < Base

	def run
	@lines = []
	@commits = []

	require "set"

	mods = Class.ancestors +
	Method.ancestors +
	UnboundMethod.ancestors

	reserved = %i[
	==
	===
	=~

	#!/bin/bash

	cd ~/src
	dir="git-long-uninteresting-branch"

	git init $dir > /dev/null
	cd $dir

	export GIT_COMMITTER_DATE="1600000000"

	o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o---o o o---o o o o o o o o o o o o o o o o o o o o
	\| \| \| \|
	o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o---o---

	.................................................................................................\|...............................................................#....#..................
	........#........................................................................................\|...............................................................#....#..................
	........#.............#..........................................................................\|...............................................................#....#..................
	........#.............#..........................................................................\|...............................................................#....#..................
	........#.............#..........................................................................\|...#....#......................................................#....#..................
	........#.............#.......................................................................

	module Pack
	module Numbers

	module VarIntLE
	def self.write(size, shift)
	bytes = []
	mask = 2 ** shift - 1

	until size <= mask
	bytes << (0x80 \| size & mask)

James Coglan jcoglan

benchmark: reduce(), filter(), map(), transducers and for loops

Rust types reference

Prelude

benchmark: `reduce()`, `filter()`, `map()`, transducers and `for` loops