SEARCH KEYWORD -- Function
Getting the most out of your pixels - adapting to view state changes
In Windows 8, your apps run on a variety of screen sizes and under various view states. A user might have your app snapped to the side of a 25-inch desktop monitor, or fill the whole screen of a 10-inch widescreen tablet. In each case, you want your app to take full advantage of the available space. In this post, I show you how you can track the current size and view state of your app in code, and give you tips on how to write your app in the Windows 8 Consumer Preview to handle screen si...
Windos 8,Metro,Resolution,Style 2012-04-23 06:13:02
Getting started with C++ TR1 regular expressions
Overview This article is written for the benefit of someone familiar with regular expressions but not with the use of regular expressions in C++ via the TR1 (C++ Standards Committee Technical Report 1) extensions. Comparisons will be made with Perl for those familiar with Perl, though no knowledge of Perl is required. The focus is not on the syntax of regular expressions per se but rather how to use regular expressions to search for patterns and make replacements. Support for TR1 ext...
Regular expression,Replace,TR1,Extension 2011-08-14 07:25:20
Event Loop Mechanism in JavaScript
Introduction The Event Loop Mechanism The event loop mechanism is the core of how JavaScript handles asynchronous operations. It ensures that the execution order of the code aligns with the expected sequence. JavaScript's Single Thread JavaScript is known for being a single-threaded language, meaning it executes one task at a time. This can lead to a significant issue: if a thread is blocked, the entire program becomes unresponsive. To address this, JavaScript introduced the event loop mechanism...
JAVASCRIPT,EVENT MECHANISM,EVENT LOOP 2024-07-03 08:19:09
Tricks with Direct Memory Access in Java
Java was initially designed as a safe managed environment. Nevertheless, Java HotSpot VM contains a “backdoor†that provides a number of low-level operations to manipulate memory and threads directly. This backdoor – sun.misc.Unsafe – is widely used by JDK itself in packages like java.nio or java.util.concurrent. It is hard to imagine a Java developer that uses this backdoor in any regular development because this API is extremely dangerous...
Java,Directly memory access,Tricks,JVM 2012-02-13 05:31:19
Why I love everything you hate about Java
If you’re one of those hipster programmers who loves Clojure, Ruby, Scala, Erlang, or whatever, you probably deeply loathe Java and all of its giant configuration files and bloated APIs of AbstractFactoryFactoryInterfaces. I used to hate all that stuff too. But you know what? After working for all these months on these huge pieces of Twitter infrastructure I’ve started to love the AbstractFactoryFactories. Let me explain why. Consider this little Scala program. It uses â€...
Java,Comparison,Modularity,API 2011-11-29 08:48:15
Functional Programming in C++
Probably everyone reading this has heard “functional programming†put forth as something that is supposed to bring benefits to software development, or even heard it touted as a silver bullet. However, a trip to Wikipedia for some more information can be initially off-putting, with early references to lambda calculus and formal systems. It isn’t immediately clear what that has to do with writing better software. My pragmatic summary: A large fraction of th...
C++,Functional programming 2012-04-28 06:16:37
What can .htaccess file do?
A .htaccess file is a directory-level configuration file supported by several web servers, that allows for decentralized management of web server configuration. What can a .htaccess file do? We summarized some of them here. Hope it may help you. 1. Timezone settingSometimes when you use date() or mktime() functions in PHP, , it may display some weird information because of the timezone difference. For example, one possible warning is :Warning: date(): It is not safe to rely on the syste...
Be careful about nil check on interface in GoLang
nil check is frequently seen in GoLang code especially for error check since GoLang's special error handling convention. In most cases, nil check is straight forward, but in interface case, it's a bit different and special care needs to be taken. Take a look at below code snippet and guess what the output will be. package main import ( "bytes" "fmt" "io" ) func check(w io.Writer) { if w != nil { fmt.Println("w is not nil") } fmt.Printf("w is %+v\n", w) } func main() { var b *bytes.B...
INTERFACE,GOLANG,NIL CHECK,NIL TYPE,NIL VALUE 2019-04-06 07:47:07
Coming full circle
Experts often end up where they started as beginners.If you’ve never seen the word valet, you might pronounce it like VAL-it. If you realize the word has a French origin, you would pronounce it val-A. But the preferred pronunciation is actually VAL-it.Beginning musicians play by ear, to the extent that they can play at all. Then they learn to read music. Eventually, maybe years later, they realize that music really is about what you hear and not what you see.Beginning computer science stu...
Significance and use of do{...}while(0)
In some Linux kernel and other open source codes, we can see some codes like below: do{ ... }while(0) This code snippet is not a loop, it seems there is no significance of using do...while this way, then why should we use it? In fact, the significance of do{...}while(0) is better than optimizing your code. After some research, we summarize some benefits of it. 1. Help define complex macro to avoid error #define DOSOMETHING()\ foo1();\ foo2(); The me...
do{...}while(0), optimization 2012-10-21 21:13:22
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