Add C++20 cppdialect for C++ projects #1460
Merged
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What does this PR do?
This PR introduces the C++20 standard dialect option to the cppdialect. It sets the corresponding standard flag for MSC, Make, and XCode.
How does this PR change Premake's behavior?
This changes the behavior of MSC's C++17 dialect value from /std:latest to /std:c++17, which is supported in Visual Studio 2019. When running Premake with
cppdialect
c++20, c++2a, gnu++20, or gnu++2a, this adds the appropriate standard revision to the compilation.Anything else we should know?
Further down the line, the C++ dialect flags for Xcode should be changed to reflect updates to Apple LLVM's compiler flags. This is out of scope of this PR though.