C++ Team Blog

C++ tutorials, C and C++ news, and information about Visual Studio, Visual Studio Code, and Vcpkg from the Microsoft C++ team.

Step Back – Going Back in C++ Time

Step Back for C++ In the most recent, 15.9, update to Visual Studio 2017 Enterprise Edition, we’ve added “Step Back” for C++ developers targeting Windows 10 Anniversary Update (1607) and later. With this feature, you can now return to a previous state while debugging without having to restart the entire process. It’s installed as part...

C++ Core Checks in Visual Studio 2017 15.7 Preview 2

This post was written by Sergiy Oryekhov. The C++ Core Guidelines Check extension received several new rules in Visual Studio 2017 15.7 Preview 2. The primary focus in this iteration was on the checks that would make it easier to adopt utilities from the Guidelines Support Library. Below is a quick summary of these additions. For more ...

C++ Code Analysis Improvements for Visual Studio 2017 15.7 Preview 1

点这里看中文版 We're making it easier to configure and use the C++ code analysis features with a set of changes targeting 15.7. In the first 15.7 preview we've cleaned up the UI, fixed our documentation links and, most importantly, simplified the way analysis extensions are configured.  If you're not familiar with C++ Core Check, it's...

Arithmetic overflow checks in C++ Core Check

点这里看中文版 We've improved the C++ Code Analysis toolset with every major compiler update in Visual Studio 2017. Version 15.6, now in Preview, includes a set of arithmetic overflow checks. This article discusses those checks and why you’ll want to enable them in your code. If you’re just getting started with C++ Code Analysis ...

Image Watch is now available for Visual Studio 2017

点这里看中文版 Image Watch is a Visual Studio extension that provides a watch window for viewing in-memory bitmaps when debugging native C++ code. It comes with built-in support for OpenCV image types (e.g. cv::Mat, cv::Mat_<> , etc.). We know that, for many of you, this is an important part of your C++ debugging experience. We...

Broken Warnings Theory

Перевод статьи на русском The "broken warnings theory" is a fictional theory of the norm-setting and signaling effect of coding practices and bug-checking techniques in 3rd party libraries on new bugs and design anti-patterns. The theory states that maintaining and monitoring warning levels to prevent small problems ...

Diagnostic Improvements in Visual Studio 2017 15.3.0

This post as well as described diagnostics significantly benefited from the feedback by Mark, Xiang, Stephan, Marian, Gabriel, Ulzii, Steve and Andrew. Visual Studio 2017 15.3.0 release comes with a number of improvements to the Microsoft Visual C++ compiler's diagnostics. Most of these improvements are in response to the diagnostics ...

Format Specifiers Checking

By popular request, in Visual Studio 2015 RTM, we’ve implemented the checking of arguments given to printf/scanf and their variations in the C standard library. You can try the examples from this post in our online compiler.SummaryHere is a list of all the formatting warnings that were introduced:Example 1Consider the following snippet ...

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