/Zc (Conformance)
The new home for Visual Studio documentation is Visual Studio 2017 Documentation on docs.microsoft.com.
The latest version of this topic can be found at /Zc (Conformance).
You can use the /Zc compiler option to specify standard or Microsoft-specific compiler behavior. Here are the /Zc compiler options:
For more information about conformance issues in Visual C++, see Nonstandard Behavior.