SEARCH KEYWORD -- Visual programming language
20 bit operations programmers should know
While talking about bit operation, programmers usually think about its efficiency. In embedded programming and system core optimization, appropriate use of bit operations is always a fascinating. When finding a job, it will help you a lot if you use bit operations when writing codes. Mastering simple bit arithmetic skills is necessary. 1. Get maximum int value int getMaxInt(){ return (1 << 31) - 1;//...
Bit operation, Tips 2012-12-19 12:53:33
bcrypt: Safeguarding Passwords with Strong Hashing and Adaptive Security
Introduction In today's digital world, passwords play a crucial role in protecting personal privacy and information security. Passwords are the most commonly used means of authentication because they are simple yet effective. Password security is the cornerstone of cybersecurity and plays a fundamental role in safeguarding the information security of individuals and organizations. However, with the increasing frequency and complexity of cyberattacks, traditional password hashing algorithms like ...
How big is sizeof structure?
First let's see the codes of a structure: struct node{ int a; int b; }; Question : What's sizeof(node)? The answer is very simple, on a 32 bit machine, an int will take 4 bytes and two ints will take 8 bytes. So sizeof(node) is 8. The answer for the above codes is 8, then how about the following structure: struct node{ char a; int b; }; Question : Then what's sizeof(node) now? int takes 4 bytes, char takes 1 bytes, is the answer 5? Now the answer may not be 5, on some mac...
Data structure alignment, pack 2012-10-29 12:13:37
Preparing for the real costs of cloud computing
Computerworld - At a cloud computing conference in New York in June, a number of speakers pointed out that the cloud is moving past the hype stage and is beginning to deliver tangible benefits to organizations. These improvements include increased flexibility and agility. But moving to the cloud can also mean added costs, some of which might be unexpected, according to IT executives whose organizations have implemented cloud services or are considering them. While these types of costs ...
Cloud computing,Cost,Chanllenges,Platfor 2011-08-23 07:48:24
Linus Torvalds’s Lessons on Software Development Management
If anyone knows the joys and sorrows of managing software development projects, it would be Linus Torvalds, creator of the world's most popular open-source software program: the Linux operating system. For more than 20 years, Torvalds has been directing thousands of developers to improve the open source OS. He and I sat down to talk about effective techniques in running large-scale distributed programming teams – and the things that don’t work, too.Torvalds says there are...
Linux,Software development,Linus Tonalds 2011-09-28 09:16:02
Management Myth #1: The Myth of 100% Utilization
A manager took me aside at a recent engagement. “You know, Johanna, there’s something I just don’t understand about this agile thing. It sure doesn’t look like everyone is being used at 100 percent.â€â€œAnd what if they aren’t being used at 100 percent? Is that a problem for you?â€â€œHeck, yes. I’m paying their salaries! I want to know I’m getting their full value for what I’m paying them!â€â€œWhat if I told you...
Management,Utilization,Efficiency,Innovation 2012-01-05 08:13:41
Are You a Zen Coder or Distraction-Junkie?
What you do when compiling can ruin your life. And not just when compiling, but when waiting for any short computer operation to finish. That time is ridiculously tiny compared to the rest of your workday, yet it can have a huge impact on your productivity and well-being overall. Yes, that’s a big fat claim. And by the way, this article is not just about coders or programmers. It’s about any smart people working with computers. And there will be pictures! Let’s rock and ro...
Programming.Net,ASP.NET,Platform 2012-02-23 07:14:11
Address of a Java Object
In conventional java programming, you will never need address or location of a java object from memory. When you discuss about this in forums, the first question raised is why do you need to know the address of a java object? Its a valid question. But always, we reserve the right to experiment. Nothing is wrong in exploring uncharted areas.I thought of experimenting using a little known class from sun package. Unsafe is a class that belongs to sun.misc package. For some of you the package might ...
Java,Object,Address,Memory,Start address 2011-09-29 11:17:46
Good to Great Python reads
A colÂlecÂtion of python “must readsâ€:The Python yield keyÂword explainedPython’s super() conÂsidÂered super!UnderÂstandÂing Python DecoratorsWhat is a metaÂclass in Python?MetaÂclasses DemystifiedTry/Catch for valÂiÂdaÂtion or speed?Python (and Python C API): __new__ verÂsus __init__Python “self†keywordPython and the PrinÂciÂple of Least AstonishmentA CuriÂous Course on CorouÂtines and Concurr...
Python,Reference,eBook,Reading Material 2011-11-15 11:46:12
What matters in life (and what doesn’t)
I’m probably too young to be writing on this topic but observing countless souls distressed by daily life made me think hard on what is that really matters in life. Undoubtedly, there are happy and sad phases and that’s part-and-parcel of life. But what I’m really bothered about is general, daily bitching about how miserable one’s life has become. You find people complaining about work, commute, relationships, other people’s attitudes & personalit...
Life,Matater,Relationship,Experience,Material possession,Ego 2011-10-24 11:57:27
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