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What's the difference between equal?, eql?, ===, and ==?
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You might be familiar with === as an equality operator in Javascript and PHP, but this just not an equality operator in Ruby and has fundamentally different semantics.
So what does === do?
=== is the pattern matching operator!
=== matches regular expressions
=== checks range membership
=== che...
Map Tiling Algorithm
...le:Object, degrees:uint):void
{
// http://www.flash-db.com/Board/index.php?topic=18625.0
var midPoint:int = tileDimension/2;
var point:Point=new Point(tile.x+midPoint, tile.y+midPoint);
var m:Matrix=tile.transform.matrix;
m.tx -= point.x;
m.ty -= point.y;
m.rotate (degree...
The Definitive C Book Guide and List
...an download the latest version as pdf here: icube-icps.unistra.fr/img_auth.php/d/db/ModernC.pdf (BTW, seems the author is updating & publish the book at above link as need)
– Eric Wang
Aug 10 '19 at 18:36
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Algorithm to compare two images
...).
http://en.wikipedia.org/wiki/RGB_color_space
http://upvector.com/index.php?section=tutorials&subsection=tutorials/colorspace
Another example involves something called the Hough Transform. This transform essentially decomposes an image into a set of lines. You can then take some of the '...
How do I properly clean up Excel interop objects?
...remeVBTalk .NET Office Automation forum, here: xtremevbtalk.com/showthread.php?t=303928.
– Mike Rosenblum
Jan 24 '09 at 15:15
2
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Why would one use the Publish/Subscribe pattern (in JS/jQuery)?
...es sense. I am familiar with the MVC pattern as I use it all the time with PHP, but I hadn't thought about it in terms of event-driven programming. :)
– Maccath
Nov 22 '12 at 13:44
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Regex Pattern to Match, Excluding when… / Except between
...er-Known Variation
There is a variation using syntax specific to Perl and PHP that accomplishes the same. You'll see it on SO in the hands of regex masters such as CasimiretHippolyte and HamZa. I'll tell you more about this below, but my focus here is on the general solution that works with all reg...
Difference between a SOAP message and a WSDL?
...rks such as the Internet. In other words, Windows applications can talk to PHP, Java and Perl applications and many others, which in normal circumstances would not be possible.
How Do Web Services Work?
Because different applications are written in different programming languages, they often c...
TLSF源码及算法介绍 - 开源 & Github - 清泛网 - 专注C/C++及内核技术
...操作系统的内存分配算法，时间复杂度 O(1)，在内存碎片问题上表现良好，可以将它看做是一个动态管理内存的内存池，提供分配及回收内存的方法，并能够进行内存碎片化整理。它的特点在于：
可以预期的分配执行时间，无...
Are Stored Procedures more efficient, in general, than inline statements on modern RDBMS's? [duplica
...nd off since for almost a decade (along with application development in C, PHP, PL/SQL, C#.NET, and Ruby). So, I have no particular axe to grind in this (sometimes) holy war.
The historical performance benefit of stored procs have generally been from the following (in no particular order):
Pre-p...