C++ Team Blog

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

March 2020 - C++ Team Blog

Porting a C++/CLI Project to .NET Core

March 30, 2020 Mar 30, 2020 03/30/20
Mike Rousos
One of the new features of Visual Studio 2019 (beginning with version 16.4) and .NET Core 3.1 is the ability to build C++/CLI projects targeting .NET Core. This can be done either directly with cl.exe and link.exe (using the new /clr:netcore option) or via MSBuild (using <CLRSupport>NetCore</CLRSupport>). In this post, I'll walk ...

Doxygen and XML Doc Comment support

March 26, 2020 Mar 26, 2020 03/26/20
Nick Uhlenhuth
Whether you’re using Doxygen or XML Doc Comments, Visual Studio version 16.6 Preview 2 provides automatic comment stub generation as well as Quick Info, Parameter Help, and Member List tooltip support. Stub Generation By default, the stub generation is set to XML Doc Comments. The comment stub can be generated by typing a triple slash...

IntelliSense Code Linter for C++

March 26, 2020 Mar 26, 2020 03/26/20
Kyle Reed
Introducing the IntelliSense Code Linter for C++; a preview of "as-you-type" code analysis with fixups. Try it out today in Visual Studio 2019 16.6 Preview 2.

More Spectre Mitigations in MSVC

March 13, 2020 Mar 13, 2020 03/13/20
Daniel Donenfeld
In a previous blog post, Microsoft described the Spectre mitigations available under /Qspectre. These mitigations, while not significantly impacting performance, do not protect against all possible speculative load attacks, described in industry research as Load Value Injection. We are now adding two new switches /Qspectre-load and /Qspectre-...

Analyze your builds programmatically with the C++ Build Insights SDK

March 6, 2020 Mar 6, 2020 03/6/20
Kevin Cadieux
We're happy to announce today the release of the C++ Build Insights SDK, a framework that gives you access to MSVC build time information via C and C++ APIs. To accompany this release, we are making vcperf open source on GitHub. Because vcperf itself is built with the SDK, you can use it as a reference when developing your own tools. We’re ...

The Performance Benefits of Final Classes

March 2, 2020 Mar 2, 2020 03/2/20
Sy Brand
The final specifier in C++ marks a class or virtual member function as one which cannot be derived from or overriden. For example, consider the following code:  If we attempt to write a new class which derives from `derived` then we get a compiler error:  The final specifier is useful for expressing to readers of the code that a ...

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