C++ Team Blog

The latest in C++, Visual Studio, VS Code, and vcpkg from the MSFT C++ team

January 2021 - C++ Team Blog

A Year of Conference Talks from the Microsoft C++ Team

January 25, 2021 Jan 25, 2021 01/25/21
Sy Brand
As we learned to adapt to virtual conferences last year we presented more than 20 talks on a wide range of topics. I've collected them all here so you can easily learn about the latest advances in our tooling as well as the cutting edge of C++ features. C++ Europe (February) WSLConf (March) Pure Virtual C++ (April...

Windows ARM64 support for CMake projects in Visual Studio

January 21, 2021 Jan 21, 2021 01/21/21
Erika Sweet
In Visual Studio 2019 version 16.9 Preview 3 we added support for deploying CMake projects to a remote Windows machine and debugging them with the Visual Studio remote tools. CMake developers targeting ARM64 Windows can now cross-compile (with cl or clang-cl), deploy, and debug their projects directly from Visual Studio. You can download and ...

Build Throughput Series: More Efficient Template Metaprogramming

January 19, 2021 Jan 19, 2021 01/19/21
Xiang Fan
In the previous blog post I shared how template specialization and template instantiation are processed in the MSVC compiler. We will now look at some examples from real-world code bases to show some ways to reduce the number of them. Example 1 This example is extracted from our own MSVC compiler code base. The code tries to apply several ...
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C++ with Visual Studio and WSL2

January 14, 2021 Jan 14, 2021 01/14/21
Erika Sweet
Our team released native support for C++ with the Windows Subsystem for Linux (WSL) in Visual Studio in 2019. “Native support” means that all commands are executed locally instead of over a SSH connection. Since then, WSL2 has been announced and we’ve received questions about our support for WSL2 in Visual Studio. The purpose of this ...

Build Throughput Series: Template Metaprogramming Fundamentals

January 14, 2021 Jan 14, 2021 01/14/21
Xiang Fan
Template metaprogramming is popular and seen in many code bases. However, it often contributes to long compile times. When investigating build throughput improvement opportunities in large codebases, our finding is that more than one million template specializations and template instantiations is quite common and often provides optimization ...

Faster C++ Iteration Builds

January 6, 2021 Jan 6, 2021 01/6/21
Russ Keldorph
We made improvements to C++ link time earlier in Visual Studio 2019, and we have more improvements to tell you about. As of version 16.7, we measure up to 5X improvement in some incremental linking and debugging scenarios and up to a 1.5X speedup in full linking. These represent some of the improvements The Coalition saw in their recent ...