C++ *

General-purpose programming language. It has imperative, object-oriented and generic programming features, while also providing facilities for low-level memory manipulation

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MrROBUST May 31 2021 at 14:39

PVS-Studio Team: Switching to Clang Improved PVS-Studio C++ Analyzer's Performance

4 min

1.1K

PVS-Studio corporate blogC++*Build automation*

From the earliest days, we used MSVC to compile the PVS-Studio C++ analyzer for Windows - then, in 2006, known as Viva64, version 1.00. With new releases, the analyzer's C++ core learned to work on Linux and macOS, and we modified the project's structure to support CMake. However, we kept using the MSVC compiler to build the analyzer's version for Windows. Then, in 2019, on April 29th, Visual Studio developers announced they had included the LLVM utilities and Clang compiler in the IDE. And just recently we've gotten around to try it.

vkhanieva Mar 29 2021 at 08:41

MacOS Kernel, How Good Is This Apple?

19 min

1.6K

PVS-Studio corporate blogC++*Open source*Development for MacOS*

0818_XNU_MacOS_Kernel/image1.png

At the very beginning of this year, Apple released the source code for macOS – Big Sur. It includes XNU, the kernel of the macOS operating system. A few years ago, PVS-Studio has already checked the kernel source code. It coincided with the analyzer release on macOS. It's been a while since then. The new kernel source code has been released. A second check? Why not?

Andrey2008 Mar 22 2021 at 12:07

One Useful Comment

2 min

1.1K

PVS-Studio corporate blogPerfect code*Programming*C++*C*

One Useful Comment

Most influential programmers say that code must be self-documenting. They find comments useful only when working with something uncommon. Our team shares this opinion. Recently we came across a code snippet that perfectly proves it.

Andrey2008 Feb 16 2021 at 18:02

Date Processing Attracts Bugs or 77 Defects in Qt 6

24 min

1.6K

PVS-Studio corporate blogC++*Qt*Information Security*Programming*

PVS-Studio & Qt 6

The recent Qt 6 release compelled us to recheck the framework with PVS-Studio. In this article, we reviewed various interesting errors we found, for example, those related to processing dates. The errors we discovered prove that developers can greatly benefit from regularly checking their projects with tools like PVS-Studio.

Andrey2008 Jan 20 2021 at 12:49

Espressif IoT Development Framework: 71 Shots in the Foot

28 min

1.1K

PVS-Studio corporate blogInformation Security*C++*C*IOT

0790_Espressif_IoT_Development_Framework/image1.png
One of our readers recommended paying heed to the Espressif IoT Development Framework. He found an error in the project code and asked if the PVS-Studio static analyzer could find it. The analyzer can't detect this specific error so far, but it managed to spot many others. Based on this story and the errors found, we decided to write a classic article about checking an open source project. Enjoy exploring what IoT devices can do to shoot you in the foot.

SvyatoslavMC Dec 21 2020 at 05:04

Did It Have to Take So Long to Find a Bug?

2 min

1.8K

PVS-Studio corporate blogC++*Game development*Development Management*

Have you ever wondered which type of project demonstrates higher code quality – open-source or proprietary? Our blog posts may seem to suggest that bugs tend to concentrate in open-source projects. But that's not quite true. Bugs can be found in any project, no matter the manner of storage. As for the code quality, it tends to be higher in those projects where developers care about and work on it. In this small post, you will learn about a bug that took two years to fix, although it could have been done in just five minutes.

Andrey2008 Dec 1 2020 at 17:27

The Code Analyzer is wrong. Long live the Analyzer

6 min

716

PVS-Studio corporate blogC++*Programming*

Foo(std::move(buffer), line_buffer - buffer.get());

Combining many actions in a single C++ expression is a bad practice, as such code is hard to understand, maintain, and it is easy to make mistakes in it. For example, one can instill a bug by reconciling different actions when evaluating function arguments. We agree with the classic recommendation that code should be simple and clear. Now let's look at an interesting case where the PVS-Studio analyzer is technically wrong, but from a practical point of view, the code should still be changed.

GGribkov Nov 30 2020 at 08:42

How static code analysis helps in the GameDev industry

7 min

1.4K

PVS-Studio corporate blogC#*C++*Unity3D*Unreal Engine*

The gaming industry is constantly evolving and is developing faster than a speeding bullet. Along with the growth of the industry, the complexity of development also increases: the code base is getting larger and the number of bugs is growing as well. Therefore, modern game projects need to pay special attention to the code quality. Today we will cover one of the ways to make your code more decent, which is static analysis, as well as how PVS-Studio in practice helps in the game project development of various sizes.

Andrey2008 Oct 27 2020 at 11:36

Checking Clang 11 with PVS-Studio

10 min

757

PVS-Studio corporate blogCompilers*Information Security*Open source*C++*

Every now and then, we have to write articles about how we've checked another fresh version of some compiler. That's not really much fun. However, as practice shows, if we stop doing that for a while, folks start doubting whether PVS-Studio is worth its title of a good catcher of bugs and vulnerabilities. What if the new compiler can do that too? Sure, compilers evolve, but so does PVS-Studio – and it proves, again and again, its ability to catch bugs even in high-quality projects such as compilers.

GGribkov Jul 6 2020 at 12:20

PVS-Studio is now in Compiler Explorer

4 min

1.1K

PVS-Studio corporate blogProgramming*Compilers*C++*C*

Not so long ago, a landmark event has happened: PVS-Studio appeared in Compiler Explorer! Now you can quickly and easily analyze the code for errors right on the godbolt.org site (Compiler Explorer). This feature opens up a large number of new possibilities – from quenching curiosity about the analyzer's abilities to being able to quickly share check results with a friend. This article will cover the topic on how to use these features. Caution – large GIFs!

MrDvorak Dec 19 2019 at 12:52

Top 10 Bugs Found in C++ Projects in 2019

8 min

PVS-Studio corporate blogC*C++*

Another year is drawing to an end, and it's a perfect time to make yourself a cup of coffee and reread the reviews of bugs collected across open-source projects over this year. This would take quite a while, of course, so we prepared this article to make it easier for you. Today we'll be recalling the most interesting dark spots that we came across in open-source C/C++ projects in 2019.

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