unicode,ucs-2,ucs-4,utf-8,utf-16,utf-32,big endian,little endian
Of course I know what big endian and little endian are. The problem is I cannot memorize the difference between them. The cause is I misunderstand the meaning of the […]
What is the difference between variable initialization and variable assignment?
What is variable initialization? Variable initialization is giving a value to a variable at the time of defining the variable. There are quite a few methods to give a value […]
qt .pro file parser
The parsing function for .pro file is in QMakeParser::read. It uses two buffers: tokBuff: store the parsed tokens of a .pro file xprBuff: only store a line(or part of a […]
pointers in Locals and Expressions windows of Qt Creator
When debugging in Qt Creator, you can see the real-time values of variables in the Locals window and the Expressions window. In the above example, c is a variable of […]
difference between running another batch script by its name and by using call
You can invoke another batch script from a batch script like this: rem a.bat echo helloa1 b.bat echo helloa2 rem b.bat echo hellob1 exit /b echo hellob2 Here, the batch script a.bat […]
How to get the size of an array in C++?
The answer is using the sizeof operator. The important thing is that sizeof always returns the number of bytes of the operand regardless it is an array or a basic […]
How to start/pause/resume/stop Qt thread?
If you’ve read my post Qt Thread, you should be able to run a task in a new thread now. But you may always want to do some controls on […]
What is WordPress Pingback/Trackback?
As a savvy spammer, I know how to get backlinks from WordPress websites to my site. The simplest way is to comment on posts on other wordpress sites , leaving […]
How to check the version of wordpress installed without login?
You must know a way to check the WordPress version, i.e., login administration dashboard. The version of installed wordpress is shown somewhere on the home page of the administration dashboard. […]
http request headers for firefox, edge, and qtwebengine
An http request issued by firefox has the following headers. GET / HTTP/1.1\r\n Host: google.com\r\n User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:69.0) Gecko/20100101 Firefox/69.0\r\n Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8\r\n Accept-Language: en-US,en;q=0.5\r\n Accept-Encoding: […]