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mysql – connection example
Mysql is a database, and to gain access to the data within C++ you will need to be able to “talk†to the database via queries (just like on the mysql command line interface e.g. select * from tablename), the connection process is very similar to the command line interface you will need to supply connection details as in hostname (localhost normally), username, password, database to use and also there are other details that you can pass e.g port number more information can be gained f...
C++,Database,MySQL,Connection,Example 2011-10-29 00:42:10
sorting in C++: 3 times faster than C.
If you don't know C++ well, you might be surprised how fast C++ can be sometimes. This is especially true when code involved is small, because then inlining - which is what C++ is very good at - and templating, which makes excessive inlining possible in the first place - has the most effect. The following code compares C and C++ sorting: #include <iostream>#include <algorithm>#include <vector>#include "stop_watch.inl" // see https://...
C++,Sorting,C,faster,efficiency 2012-03-17 12:59:45
Apache Tomcat Installation and Configuration
When you want to install Apache Tomcat on Windows System. You may find that there are some tricky parts. Next I will elaborate the steps to install and configure Tomcat. If you want to install Tomcat as a service without GUI. You need to download the 32-bit Windows.zip from http://tomcat.apache.org/download-70.cgi. After downloading this zip file. You need to unzip this file to the directory which you want to put this software to. After unzipping, you can go to the bin directory and find t...
Tomcat 7,Windows,Apache,Install,Configur 2011-04-10 14:17:21
A collection of color schemes for some famous websites in China
Each website has a color scheme which identifies itself. By looking at one color, we can know which website it is for. These color schemes can be identified from their logos, nav-bars, background etc. We collect some color schemes for some famous Chinese websites. Alibaba (#f90) Baidu (#0000cc) Huawei (#e30a12) HTC (#69b40f) JD (#c91623) Renren (#105ba3) Sina (#e4351e) Sohu (#fdd000) Taobao (#ff4400) Tencent (#0397de) Tmall (#...
Website,Color scheme,China 2013-08-21 12:32:14
JavaScript JVM runs Java
The world of software is made slightly crazy because of the huge flexibility within any computer language. Once you have absorbed the idea of a compiler written in the language it compiles what else is there left to gawp at? But... a Java Virtual Machine JVM written in JavaScript seems like another level of insanity.In fact it is a quite reasonable idea which is only made mad by the usual positions that Java, the top dog, and JavaScript the underling, usually occupy. Java is compiled not to mach...
JavaScript,JVM,BicaVM,Cross platform,JavaScript written JVM 2011-11-22 02:51:38
Will PHP __autoload() function really affect performance?
IntroductionRegarding to PHP performance, the most frequently discussed is the __autoload() function. Many people say that this function will affect the performance very much, some other people say that opcode will affect __autoload() as well. So we will have some tests on these two.EnvironmentPHP 5.3.9 -- Launch under fastcgi modeNginx 1.1.12eAccelerator 0.9.6.1ScreenshotsLaunch pageeAccelerator(In php.ini) configurationFile structure(each Test file has over 6000 lines of code)Testing With e...
PHP,__autoload(),opcode,performance 2012-05-09 11:25:26
Creating Dynamic PDF files using HTML and PHP
There always arise a need for converting content from one file format to another one. Some may need to convert some text into HTML and some may need to convert some HTML content to an image format. The main reason for the need to convert from one file format to another is because the target file format is best suited for targeted medium where the content need to be displayed. The targeted medium may be an email, a printed hard copy or a web browser. The text format is best suited for sending ema...
PHP,HTML,PDF,Conversion,Generate,Library 2011-11-18 12:10:53
Get the 48×48 or 256×256 icon of a file on Windows
Getting the 16×16 and 32×32 icons on Windows is relatively easy and is often as simple as one call to ExtractIconEx. However, getting the extra large (48×48) and jumbo (256×256) icons introduced respectively by XP and Vista is slighly more complex. This is normally done by: Getting the file information, in particular the icon index, for the given file using SHGetFileInfoRetrieving the system image list where all the icons are storedCasting the image list to an IImageList interf...
File icon,File extension,Association,Large icon,Windows 2012-03-23 09:35:17
How Many C Programs Are There?
If I choose a size S, can you tell me how many valid C programs exist that are no larger than that size? I’m actually interested in the answer — it’ll help me make a point in a paper I’m writing. Shockingly, the Internet (or at least, the part of it that I looked at based on a few searches) does not provide a good answer. Let’s start with a few premises: Since it would be exceedingly difficult to construct the exact answer, we’re looking for a respe...
C Progra,Number,Statistic,Calculation 2012-02-22 05:18:32
Productivity is just work
The other day, I wrote a post declaring that I will no longer try to increase my productivity. This doesn't mean I won't read productivity blogs, and tweak things, and manage my "system". It means I no longer think about any of that stuff as having anything to do with productivity. Productivity is what happens when you're doing work. Enhancing your productivity is what happens when you do a lot of work, for long enough to get better at it. Look, throw all your stuff in Dropbox, live yo...
Productivity,Work,Enhancement 2012-01-05 08:18:36
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