ActiveState Code is a site for learning from and sharing code recipes - with a focus on dynamic languages and languages used for web development.
The recipes you'll find here highlight programming best practices and can be used directly in day-to-day tasks, as a source of ideas, or as a way to learn more about languages or libraries. We invite you to contribute code, comments, and ratings for recipes. The recipes are freely available for review and use.
wxCode is a place where anyone can submit his code snippets for wxWidgets. It's also a place where code may be maintained by anyone interested. Maintainer ship is always decided by the current maintainer or by the project manager. A maintainer may resign anytime so any code snippet will be marked as maintained or not.
PVS-Studio is a static analyzer that detects errors in source code of C/C++/C++11 applications. There are sets of rules included into PVS-Studio:
General-purpose diagnosis
Detection of possible optimizations
Diagnosis of 64-bit errors (Viva64)
Diagnosis of parallel errors (VivaMP)
Lazarus is a free and open source development tool for the FreePascal Compiler. The purpose of the project is to serve as a Code Repository, Wiki Knowledgebase and support site for converting existing components and libraries to work with Lazarus and FPC
Performance is essential for infrastructure software. Modern infrastructure software depends heavily on components. Therefore, writing performant code in this environment requires deep understanding of the characteristics of such components. The course will help programmers to improve performance of their code by learning how to use these existing generic components effectively. In addition, it will teach them to extend the library with new high-performance components. Along the way, participants will learn how to use C++ as a high-performance language.
The course will be taught interactively with the class discussing, discovering, and developing components together.
Yes, you've guessed correctly - the answer is "42". In this article you will find 42 recommendations about coding in C++ that can help a programmer avoid a lot of errors, save time and effort. The author is Andrey Karpov - technical director of "Program Verification Systems", a team of developers, working on PVS-Studio static code analyzer. Having checked a large number of open source projects, we have seen a large variety of ways to shoot yourself in the foot; there is definitely much to share with the readers. Every recommendation is given with a practical example, which proves the currentness of this question. These tips are intended for C/C++ programmers, but usually they are universal, and may be of interest for developers using other languages.
For the purpose of testing our C/C++ analyzer PVS-Studio, we often check various open-source projects and publish reports about bugs we have found. It is obvious that we seek projects of large sizes (hundreds of thousands of code lines), as there is little to be tested and caught in just a few dozens of files. We already had opportunities to test large collections consisting of hundreds of small open-source projects, for example sets of test samples for various SDKs and Frameworks. We are especially interested in checking such collections to see how the analyzer supports various specific code constructs, Visual C++ project subtypes, and so on.
My name is Andrey Karpov. I develop software for developers, and I'm fond of writing articles on code quality issues. In this connection, I have met the wonderful man Walter Bright who has created the D language. In the form of an interview, I will try to learn from him how the D language helps programmers get rid of errors we all make when writing code.
As an experiment, we have decided to offer everyone interested a PVS-Studio registration key for 5 days to study its 64-bit diagnostics more thoroughly.
The PVS-Studio demo version is absolutely full-function. It is sufficient to study the tool and get familiar with its capabilities. The user has up to 200 clicks to navigate through code fragments the analyzer considers to be probably incorrect. We believe it's quite enough for the user to decide if he/she likes the tool or not.
However, that might be insufficient in case you are searching for 64-bit errors. Many of the 64-bit warnings are false positives or are irrelevant to this program, as fragments they point to cannot cause errors. That's why the restriction of 200 messages you can click to navigate through the code may prevent you from forming a definite opinion of the tool.
We have been watching an increasing interest towards development of 64-bit software lately. Perhaps this has to do with the release of Embarcadero RAD Studio XE3 Update 1 that has learned now to compile 64-bit applications. Or maybe it's just that the time has come.
"Qt is a cross-platform application and UI framework that allows developers to write applications once and deploy them across many desktop and embedded operating systems without rewriting the source code. "
ecoder is an open-source web-based code editor, with real-time colour syntax highlighting, which allows multiple documents to be edited directly online at the same time. mecoder made possible thanks to editarea javascript wizardy.requirementsecoder works with most standards compliant browsers which have javascript enabled. internet explorer 6 is not supported.
This website provides tutorials and sample course content so CS students and educators can learn more about current computing technologies and paradigms. In particular, this content is Creative Commons licensed which makes it easy for CS educators to use in their own classes.
The Courses section contains tutorials, lecture slides, and problem sets for a variety of topic areas:
AJAX Programming
Algorithms
Distributed Systems
Web Security
Languages
In the Tools 101 section, you will find a set of introductions to some common tools used in Computer Science such as version control systems and databases.
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