Ting-Yu Lin aethanyc

NOTE: This was first authored on 26 Feb 2014. Things may have changed since then.

C++'s Templates

C++'s templates could be seen as forming a duck typed, purely functional code generation program that is run at compile time. Types are not checked at the initial invocation stage, rather the template continues to expand until it is either successful, or runs into an operation that is not supported by that specific type – in that case the compiler spits out a 'stack trace' of the state of the template expansion.

To see this in action, lets look at a very simple example:

template

Consider the following testcase:

<!DOCTYPE HTML>
<style>
body { font-size: 32pt; margin:0; }
</style>

<div style="color:blue">
<div style="position:absolute; top:calc(100% - 20px); border:1px solid">Hello</div>
 1

	Latency Comparison Numbers (~2012)
	----------------------------------
	L1 cache reference 0.5 ns
	Branch mispredict 5 ns
	L2 cache reference 7 ns 14x L1 cache
	Mutex lock/unlock 25 ns
	Main memory reference 100 ns 20x L2 cache, 200x L1 cache
	Compress 1K bytes with Zippy 3,000 ns 3 us
	Send 1K bytes over 1 Gbps network 10,000 ns 10 us
	Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD

	;;; minimial-cedet-config.el --- Working configuration for CEDET from bzr

	;; Copyright (C) Alex Ott
	;;
	;; Author: Alex Ott <[email protected]>
	;; Keywords: cedet, C++, Java
	;; Requirements: CEDET from bzr (http://cedet.sourceforge.net/bzr-repo.shtml)

	;; Do checkout of fresh CEDET, and use this config (don't forget to change path below)

	adb pull /system/b2g/omni.ja
	rm -rf omni.old
	mv omni omni.old
	mkdir omni
	mv omni.ja omni
	cd omni
	unzip omni.ja
	rm omni.ja
	cd ..

	// ==UserScript==
	// @name Get Wiki format
	// @namespace bugzilla
	// @include https://bugzilla.mozilla.org/show_bug.cgi?id=*
	// @version 1
	// @grant GM_setClipboard
	// ==/UserScript==
	var title = document.getElementById("mode-container");
	var button = document.createElement("button");
	button.type = "button";

	// ==UserScript==
	// @name Get Wiki format for dashboard
	// @namespace bugzilla
	// @include https://bugzilla.mozilla.org/page.cgi?id=mydashboard.html
	// @version 1
	// @require http://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js
	// @require https://gist.github.com/raw/2625891/waitForKeyElements.js
	// @grant GM_setClipboard
	// ==/UserScript==
	$("#query_count_refresh").append("<span>\|</span><input type=button value='To Wiki' id='to-wiki-button' />")

	#!/bin/bash

	# == Arguments ==
	# $1 : date range, exp: "2016-07-01 to 2016-09-30"
	# $2 ~ $n : bug mail list, exp: [email protected]
	#
	# == Output ==
	# Individual standings and sum of standings.

	dateRange="$1"