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This switch enforces C++ standards conformance when using /Gw (Optimize global data). When using /Gw, certain One Definition Rule (ODR) violations are ignored. This flag ensures that the appropriate errors are raised.
Syntax
/Zc:checkGwOdr[-]
Remarks
This switch is off by default.
To see an example of ODR violations that are ignored when using /Gw, see Standards conformance improvements to /Gw.
To set this compiler option in the Visual Studio development environment
Open the project's Property Pages dialog box. For details, see Set C++ compiler and build properties in Visual Studio.
Select the Configuration Properties > C/C++ > Command Line property page.
Modify the Additional Options property to include
/Zc:checkGwOdror/Zc:checkGwOdr-and then choose OK.
See also
/Zc (Conformance)
One Definition Rule (ODR)
Standards conformance improvements to /Gw