2021 is coming to an end, which means it's time to sum up the year! Today we'll tell you about the new features we added to PVS-Studio in the past year. Buckle up and let's go!

In 2021 we published several articles and showed you errors found in open-source projects. The year 2021 ends, which means it's time to present you the traditional top 10 of the most interesting bugs. Enjoy!

The .NET 6 turned out to be much-awaited and major release. If you write for .NET, you could hardly miss such an event. We also couldn't pass by the new version of this platform. We decided to check what interesting things we can find in the sources of .NET libraries.

Flipper Zero is an open-source multi-tool for geeks and penetration testers. It so happened that the Flipper Zero project and the PVS-Studio analyzer crossed paths. A philosophical question: should we check the project, if the project developers have already started fixing errors? Let's try to do this.

It's freezing outside, everyone has already decorated the Christmas tree and bought tangerines. New Year is coming! So, it's time to meet the Top 10 interesting bugs found by the PVS-Studio C++ analyzer in 2021.

Six years ago, we first checked Umbraco with the PVS-Studio static analyzer for C#. Today, we decided to go where it all started and analyze the Umbraco CMS source code.

This is the latest release of PVS-Studio in 2021. With it, the PVS-Studio team accomplishes several important goals. Now, PVS-Studio supports Visual Studio 2022, the .NET 6 platform and C# 10.0. We implemented all diagnostics categorized as Mandatory in MISRA C.

The main purpose of the static analyzer is to detect and report errors in code - so that you can fix them afterwards. However, reporting errors is not as simple as it may seem. Those just starting out to work with static analysis - and even experienced developers - may encounter a number of problems. In this article I'll talk about these problems and how to deal with them.

We often check large projects because it's easier to find bugs there. What if we try PVS-Studio on a small project? In this article we analyze Blend2D — a library for vector 2D graphics. Let's look at what we found.

Introduction

It's no secret that large projects have fascinating errors. It's not just "the larger the codebase is – the more errors we can find". It's also a known fact that the density of errors grows along with the codebase. That's why we love checking large projects — to treat you with a variety of "yummy" and tricky errors and typos. Besides, it's always interesting to search through a huge project with lots of dependencies, legacy code, and other stuff.

Today I'm moving away from this tradition. I decided to take a small project and see what PVS-Studio can find there. I chose Blend2D — branch master, commit c484790.

We dust off the irregular series of articles about the Chromium project check. Let's look at the code quality in the latest Chromium release and check the new features of the PVS-Studio analyzer.

This article investigates why the standard library needs a way to deduce a common type, how it is implemented and how it works.

In different programming languages, the behavior of virtual functions differs when it comes to constructors and destructors. Incorrect use of virtual functions is a classic mistake. Developers often use virtual functions incorrectly. In this article, we discuss this classic mistake.

Today, we discuss C# code quality and a variety of errors by the example of CMS DotNetNuke. We're going to dig into its source code. You're going to need a cup of coffee...

It's cool when enthusiastic developers create a working clone of a famous game. It's even cooler when people are ready to continue the development of such projects! In this article, we check TheXTech with PVS-Studio. TheXTech is an open implementation of the game from the Super Mario universe.

One of the mechanisms of static analysis is method annotations of popular libraries. Annotations provide more information about functions during errors detecting. CARLA is an impressive open-source project in C++ that helped us implement this mechanism to our analyzer. Subsequently, the simulator became a test-target for the improved PVS-Studio static analyzer.

The .NET Foundation is an independent organization, created by Microsoft, to support open-source projects around the DotNet platform. Currently, the organization gathered many libraries under its wing. We have already tested some of these libraries with the help of PVS-Studio. The next project to check with the analyzer - LINQ to DB.

RPCS3 is an interesting project that emulates the PS3 console. It is actively evolving. Recently we heard the news that the emulator learned how run all the games from the console's catalog. That's a good excuse to analyze the project. We'll see which errors remained after new fixes were added to the project.

People often see work in support as something negative. Today we'll look at it from a different perspective. This article is about a real communication of 100+ messages, exceptions, the analysis that didn't complete in three days...

Tools to improve and control code quality can be a key success factor in a complex software project implementation. Static analyzers belong to such tools. Nowadays, you can find various static analyzers: from free open-source to cross-functional commercial solutions. On the one hand, it's great – you can choose from many options. On the other hand – you have to perform advanced research to find the right tool for your team.

The PVS-Studio developers often check open-source projects and write articles about that. Sometimes, when writing an article, we come across interesting situations or epic errors. Of course, we want to write a small note about it. This is one of those cases.