Andrey Karpov

Tashkent

Writer at Freelance

CMO. Co-founder of PVS-Studio. My company develops the PVS-Studio static code analyzer for C, C++, C#, Java.

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Articles

PVS-Studio 7.36: expanded MISRA support, plugin for Qt Creator 16, enhanced user annotations for C#, and much more

1 week ago | pvs-studio.com | Gleb Aslamov |Andrey Karpov

PVS-Studio 7.36 has been released. This version brings exciting updates, including extended MISRA support, a plugin for Qt Creator 16, enhanced user annotations in C#, and more! See more details in this note. You can download the latest PVS-Studio version here. Specifying the MISRA C & MISRA C++ standard versions Now you can specify the version of MISRA C and MISRA C++ standards in PVS-Studio C and C++ analyzer. Just set it right in the PVS-Studio plugin for Visual Studio.
Breaking down bugs in TDengine to master refactoring, part 3: price of laziness

3 weeks ago | pvs-studio.com | Andrey Karpov |Dmitry Sviridkin |Anton Tretyakov

Get ready for code smells, classic errors, and typos when checking the TDengine project using PVS-Studio. Developers could've prevented many of them if they had carefully designed the code in the first place, kept the logic simple, and avoided macros. Let's break down some of these errors and figure out how refactoring can help eliminate them completely. This time, we'll talk about writing code using the copy-paste method.
Breaking down bugs in TDengine to master refactoring, part 2: stack-consuming macro

1 month ago | pvs-studio.com | Andrey Karpov |Dmitry Sviridkin |Anton Tretyakov

Get ready for code smells, classic errors, and typos when checking the TDengine project using PVS-Studio. Much of this is avoidable if we design code carefully from the beginning, keep the logic simple, and stay away from macros. Let's break down some code snippets and find ways to refactor them to leave bugs no room there. In the previous post, we had a good feed of the sausage code. In this article, I'll use a new example to show why macros are dangerous and why I dislike them.
Breaking down bugs in TDengine to master refactoring, part 1: sausage code

1 month ago | pvs-studio.com | Andrey Karpov |Dmitry Sviridkin |Anton Tretyakov

The analysis of the TDengine project code using PVS-Studio reveals classic errors and typos. Developers could've avoided many of them if they had carefully designed the code in the first place, kept the logic simple, and avoided macros. Let's take a look at these errors and figure out how refactoring can help eliminate them completely. Sausage code This meme is the easiest way to illustrate what I mean. Unfortunately, Java programmers aren't the only ones writing "sausage code".
PVS-Studio 7.35: MISRA C 2023 support, Qt Creator 15 plugin, and more

2 months ago | pvs-studio.com | Gleb Aslamov |Andrey Karpov

PVS-Studio 7.35 has been released. Support for the MISRA C standard, the plugin for Qt Creator 15.x, modified file analysis in Visual Studio, and that's not all! See more details in this note. You can download the latest PVS-Studio version here. MISRA C standard coverage We've begun work to expand the PVS-Studio's coverage of the MISRA C standard. With the release of 7.35, the first eight diagnostic rules have already been implemented, and more are on the way.
Exploring Nau Engine codebase: pt.1

2 months ago | pvs-studio.com | Evgenii Feklin |Andrey Karpov

This article begins a trilogy about the Nau Engine game engine. In the first part, we focus on its functionality and explore three categories of common errors: copy-paste errors, logic flaws, and memory issues. What is Nau Engine? Nau Engine is a game engine designed to streamline the development and maintenance of games. Its developers say that their tool should be suitable for any task, any developer, and any platform. 1.
Distributed build of Unreal Engine projects with Horde and UBA

2 months ago | pvs-studio.com | Andrey Karpov

Want to distribute a large project build across multiple computers? Easy! Let's figure out how to use Unreal Horde, a new tool inside Unreal Engine 5.5. Besides, we'll cover how to run PVS-Studio analysis using it. The Unreal Engine 5.5 game engine has a new tool called Horde—a platform that enables you to use CPU cycles on other machines to distribute the load.
How to crash Minecraft with your mod

2 months ago | pvs-studio.com | Kirill Epifanov |Andrey Karpov

Developing modifications for Minecraft is a fun and enjoyable hobby. In this article, we'll explore errors in mods for our favorite game through the Custom NPC+ project. We'll reproduce them in-game and crash Minecraft. Introduction Anyone who has played Minecraft is well aware of its vibrant modding community. By the way, the author of the article is also an avid modder.
PPSSPP or psp? Uncovering bugs from the past

2 months ago | pvs-studio.com | Andrey Karpov

In the world of video games, emulators have become a real boon for fans of classic projects. Among these, PPSSPP stands out as one of the most popular PlayStation Portable (PSP) emulators, enabling gamers to relive iconic moments on modern devices. However, developers must create well-written emulator code to ensure seamless gaming experience. Introduction This is a sequel to this article.
Bugs and suspicious places in .NET 9 source code

2 months ago | pvs-studio.com | Artem Rovenskii |Andrey Moskalev |Andrey Karpov

Every year, Microsoft releases a new version of .NET, and .NET 9 is already delivered! Like the last time, we dive into hunting errors in .NET source code. Let's see what we uncover this time! Our team, like many C# developers, keeps an eye on .NET releases and new features, so we've put together some content on this topic! I suggest checking out what's been added in .NET 9 and C# 13:What's new in .NET 9?