The #line directive is added by the preprocessor and can then be used to help the developer understand which file and line a particular code fragment in the preprocessed file refers to. The #line directive tells code-processing tools to change the compiler's internally stored line number and filename to a given line number and filename. Subsequent lines will be numbered relative to that position. Explicit preprocessing is mostly used for debugging or by various generators. In any case, a bug breaking this functionality may have a variety of negative effects. One of our users was faced with such a problem in Visual Studio 2019.
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While production gets suspended and companies close down all over the world, software developers keep working remotely. Our team is no exception, and today we are announcing a new release. This time we've been focusing on enhancing stability.
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During the summer of 2019, Huawei gave a series of presentations announcing the Ark Compiler technology. The company claims that this open-source project will help developers make the Android system and third-party software much more fluent and responsive. By tradition, every new promising open-source project goes through PVS-Studio for us to evaluate the quality of its code.
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While Stockholm was holding the 118th Nobel Week, I was sitting in our office, where we develop the PVS-Studio static analyzer, working on an analysis review of the ROOT project, a big-data processing framework used in scientific research. This code wouldn't win a prize, of course, but the authors can definitely count on a detailed review of the most interesting defects plus a free license to thoroughly check the project on their own.
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Celestia is a three-dimensional space simulator. Simulation of the space allows exploring our universe in three dimensions. Celestia is available on Windows, Linux and macOS. The project is very small and PVS-Studio detected few defects in it. Despite this fact, we'd like to pay attention to it, as it's a popular educational project and it will be rather useful to somehow improve it. By the way, this program is used in popular films, series and programs for showing space. This fact, in turns, raises requirements to the code quality.
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The adventures with the Mozilla Thunderbird mail client began with automatic update to version 68.0. More text in pop-up notifications and default dark theme are the notable features of this version. Occasionally I found an error that I immediately craved to detect with static analysis. This became the reason to go for another check of the project source code using PVS-Studio. It so happened that by the time of the analysis, the bug had already been fixed. However, since we've paid some attention to the project, there's no reason not to write about other found defects.
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We welcome any chatting on code quality. Our clients, students, and other users from all corners of the Internet write to us. Regardless of the country, time zone or language. Well, speaking language, not programming. Among programming languages, we are so far interested in a limited set. Right now, it's C, C++, C# and Java. There are many benefits from communication. We implement some users' suggestions immediately, because they are really useful. Often we just lend a hand with someone's project by explaining analyzer warnings, which end up being errors. This note is about such case.
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Summer is not only a holiday season, but also time of fruitful work. Sunny days are so inspiring that there's enough energy both for late walks and large code commits. The second summer PVS-Studio 7.04 release turned out to be quite large, so we suggest for your attention this press release, in which we'll tell you about everything.
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CMake is a cross-platform system for automating project builds. This system is much older than the PVS-Studio static code analyzer, but no one has tried to apply the analyzer on its code and review the errors. As it turned out, there are a lot of them. The CMake audience is huge. New projects start on it and old ones are ported. I shudder to think of how many developers could have had any given error.
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Our attention was recently attracted by the Electronic Arts repository on GitHub. It's tiny, and of the twenty-three projects available there, only a few C++ libraries seemed interesting: EASTL, EAStdC, EABase, EAThread, EATest, EAMain, and EAAssert. The projects themselves are tiny too (about 10 files each), so bugs were found only in the "largest" project of 20 files :D But we did find them, and they do look interesting! As I was writing this post, we were also having a lively discussion of EA games and the company's policy :D
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