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/C (Preserve Comments During Preprocessing) 

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Preserves comments during preprocessing.

/C

Remarks

This compiler option requires the /E, /P, or /EP option.

The following code sample will display the source code comment.

// C_compiler_option.cpp
// compile with: /E /C /c
int i;   // a variable

This sample will produce the following output.

#line 1 "C_compiler_option.cpp"
int i;   // a variable

To set this compiler option in the Visual Studio development environment

  1. Open the project's Property Pages dialog box. For details, see How to: Open Project Property Pages.

  2. Click the C/C++ folder.

  3. Click the Preprocessor property page.

  4. Modify the Keep Comments property.

To set this compiler option programmatically

See Also

Reference

Compiler Options
Setting Compiler Options
/E (Preprocess to stdout)
/P (Preprocess to a File)
/EP (Preprocess to stdout Without #line Directives)