March 2020 | C++ Team Blog

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

Mike RousosMarch 30, 2020Mar 30, 202003/30/20

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 ...

Announcing full support for a C/C++ conformant preprocessor in MSVC

Elnar DakeshovMarch 27, 2020Mar 27, 202003/27/20

We are excited to announce full support for a conformant preprocessor in the MSVC toolset starting with Visual Studio 2019 version 16.6 Preview 2. Since the original blog post announcing preprocessor conformance changes, we’ve come a long way and are now ready to announce the completion of the C/C++ conformant preprocessor and its move to...

Doxygen and XML Doc Comment support

Nick UhlenhuthMarch 26, 2020Mar 26, 202003/26/20

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++

Kyle ReedMarch 26, 2020Mar 26, 202003/26/20

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

Daniel DonenfeldMarch 13, 2020Mar 13, 202003/13/20

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

Kevin CadieuxMarch 6, 2020Mar 6, 202003/6/20

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

Sy BrandMarch 2, 2020Mar 2, 202003/2/20

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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