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/options:strict (Unrecognized compiler options are errors)

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The /options:strict compiler option tells the compiler to return an error code if a compiler option isn't recognized.

Syntax

/options:strict

Remarks

The /options:strict compiler option causes the compiler driver cl.exe to exit with an error code after all command-line options are parsed if another command-line option or argument isn't recognized. The compiler emits error D8043 for any command-line option or argument that isn't recognized.

The /options:strict option is available starting in Visual Studio 2022 version 17.0. In earlier versions of the compiler, or if /options:strict isn't specified, the compiler doesn't exit on an unrecognized option. It emits warning D9002, ignores the unrecognized option, and continues processing.

To set this compiler option in Visual Studio

  1. Open the project's Property Pages dialog box. For details, see Set C++ compiler and build properties in Visual Studio.

  2. Select the Configuration Properties > C/C++ > Command Line property page.

  3. Add /options:strict to the Additional options: pane.

See also

/Zc (Conformance)