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Posts
Posts: articles
Text Broadcast of CppCast 267: Performance Matters
CppCast
Episode 267 of CppCast was recorded on September 30th, 2020. Hosts Rob Irving and Jason Turner talked to Emery Berger, a Professor in the College of Information and Computer Science at the University of Massachusetts Amherst. They discussed New C++ features in GCC 10 and Pattern Matching from September C++ ISO Mailing. They talked about performance issues in C++ and garbage collectors' usage. They also chat about DieHard, an error-resistant memory allocator; Stabilizer, a compiler transformation and runtime library for dynamic memory layout randomization and Coz, a new kind of profiler.
05.11.2021
PVS-Studio Learns What strlen is All About
Andrey Karpov
Somehow, it so happens that we write about our diagnostics, but barely touch upon the subject of how we enhance the analyzer's internal mechanics. So, for a change, today we'll talk about a new useful upgrade for our data flow analysis.
04.27.2021
Roslyn API: Why PVS-Studio Was Analyzing the Project So Long
Valery Komarov
How many of you have used third-party libraries when writing code? It's a catchy question. Without third-party libraries the development of some products would be delayed for a very, very long time. One would have to reinvent the wheel to solve each problem. When you use third-party libraries you still stumble upon some pitfalls in addition to obvious advantages. Recently PVS-Studio for C# has also faced one of the deficiencies. The analyzer could not finish analyzing a large project for a long time. It was due to the use of the SymbolFinder.FindReferencesAsync method from the Roslyn API in the V3083 diagnostic.
04.22.2021
Finally! PVS-Studio Supports .NET 5 Projects
Nikita Lipilin
On November 10th, 2020, Microsoft released a new version of .NET Core - .NET 5. The updated platform presents many new enhancements. For example, it allows C# developers to use features the new C# 9 offers: records, relational pattern matching, etc. Unfortunately, there was a disadvantage: PVS-Studio could not analyze these projects. However (and here's the good news)... That used to be the case :) Our next release, PVS-Studio 7.13, will support projects that target .NET 5.
04.21.2021
Perl Script Instead of Blame-notifier on Linux OS
Irina Polynkina
As you know, our clients are developers. Sometimes developers can surprise you. For example, one of our users wrote his own script. It allows configuring emails about errors found by PVS-Studio. The difference between this script and our blame-notifier is that it does not require .NET Core on Linux. We decided to write a short note about this Perl script, because we believe that it can be useful to someone.
04.08.2021
Hidden Reefs in String Pool, or Another Reason to Think Twice Before Interning Instances of String Class in C#
Ilya Gainulin
As software developers, we always want our software to work properly. We'll do everything to improve the software quality. To find the best solution, we are ready to use parallelizing or applying any various optimization techniques. One of these optimization techniques is the so-called string interning. It allows users to reduce memory usage. It also makes string comparison faster. However, everything is good in moderation. Interning at every turn is not worth it. Further, I'll show you how not to slip up with creating a hidden bottleneck in the form of the String.Intern method for your application.
04.06.2021
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