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  Eight C++ programming mistakes the compiler won’t catch

C++ is a complex language, full of subtle traps for the unwary. There is an almost infinite number of ways to screw things up. Fortunately, modern compilers are pretty good at detecting a large number of these cases and notifying the programmer via compile errors or warnings. Ultimately, any error that is compiler-detectable becomes a non-issue if properly handled, as it will be caught and fixed before the program leaves development. At worst, a compiler-detectable error results in los...

   C++,Compiler,Error detection     2012-04-08 09:55:20

  The mystery of Duqu Framework solved

The Quest for Identification In my previous blogpost about the Duqu Framework, I described one of the biggest remaining mysteries about Duqu – the oddities of the C&C communications module which appears to have been written in a different language than the rest of the Duqu code. As technical experts, we found this question very interesting and puzzling and we wanted to share it with the community. The feedback we received exceeded our wildest expectations. We got more than 200...

   Duqu,Code mystery,OO C,C++     2012-03-21 09:29:18

  Coding tricks of game developers

If you've got any real world programming experience then no doubt at some point you've had to resort to some quick and dirty fix to get a problem solved or a feature implemented while a deadline loomed large. Game developers often experience a horrific "crunch" (also known as a "death march"), which happens in the last few months of a project leading up to the game's release date. Failing to meet the deadline can often mean the project gets cancelled or even worse, you lose your job. So w...

   Tricks,Advice,Gamedesign,Plan     2012-02-12 04:50:30

  Python Patterns - An Optimization Anecdote

The other day, a friend asked me a seemingly simple question: what's the best way to convert a list of integers into a string, presuming that the integers are ASCII values. For instance, the list [97, 98, 99] should be converted to the string 'abc'. Let's assume we want to write a function to do this. The first version I came up with was totally straightforward: def f1(list): string = "" for item in list: string = string + chr(item) return string ...

   Python,Optimization,Anecdote,Loopup,ASCII     2011-12-18 10:52:49

  Lessons Learned while Introducing a New Programming Language

I've used a lot of languages (professionally) over the years: (off the top of my head) Cold Fusion, HTML, Javascript, php, SQL, CSS, ASP(classic & .net), C#, Ruby, Flex, Java, & Clojure. Each language has pros and cons. Being a programmer, it's easiest to discuss the cons - and in general I believe it was best said:I hate all programming languages - Matt FoemmelI think it's important to start with this in mind. At some point you're going to hate what you're advocating, so imagine h...

   Experience,New language,Tips,Risk     2012-03-05 05:13:59

  Popular Golang JSON libraries evaluation

JSON (Javascript Object Notation), a prevailing data exchange format, is widely used in various platforms and languages. Golang, of course, will never miss the support for JSON. And with its own standard library, such as those interfaces like the REST API from the API Service in Kubernetes, it can easily process JSON. Although Go’s library works great, we can still seek those open-source JSON libs in Github to maximize our efficiency. Then the features, performance, applicability of these ...

   FASTJSON,JSON LIB,JSON LIB COMPARISON,GO-JSON     2021-12-11 23:13:23

  ICO Checklist: How to Launch a Successful Initial Coin Offering

Amongst the many important things that took place in Blockchain industry in 2017, Initial Coin Offerings (ICO) may be considered as the most important of all. ICO helps business/idea owners to pre-sell access to their services or products and in a way to fund the development of those services or products. To help founders/ startups define an effective launch process and provide perspective on everything that they will need on their ICO journey, we have jotted down few points which will serve as...

   INITIAL COIN OFFERING,ICO CHECKLIST,INITIAL COIN OFFERINGS (ICO)     2018-05-28 07:32:53

  Taking C Seriously

Dennis Ritchie, a co-creator of Unix and C, passed away a few weeks ago, and was honored with many online tributes this weekend for a Dennis Ritchie Day advocated by Tim O’Reilly.It should hardly be necessary to state the importance of Ritchie’s work. C is the #2 language in use today according to the TIOBE rankings (which, while criticized in some quarters, are at least the best system we currently have for gauging such things). In fact, TIOBE’s pre...

   C,Efficiency,Memorization,Dennis Ritchie     2011-11-03 13:42:14

  Our Go Cache Library Choices

In Build a Go KV Cache from Scratch in 20 minutes, I walked you through what matters when writing a local cache, and eventually implemented one, whose performance was beaten badly by that of the popular go-cache on Github though. However, the bright side is that we can learn a lot from those excellent Github Go cache products, studying their features, applicable scenarios, and implementations, and extracting what we need. In this article, I will mainly analyze and compare the four...

   GOLANG,CACHE,GO-CACHE,BIGCACHE,GOURPCACHE     2022-04-16 07:48:11

  The trap of the performance sweet spot

This post is about JavaScript performance but I would like to start it by telling a story that might seem unrelated to JS. Please bear with me if you don’t like C.A story of a C programmer writing JavaScriptMr. C. is a C programmer as you can probably guess from his name. Today he was asked by his boss to write a very simple function: given an array of numbered 2d points calculate vector sum of all even numbered points... He opens his favorite text editor and quickly types somet...

   C,JavaScript,Sweet spot,Memory,Low level,Trap     2011-11-06 14:45:01

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