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Important This document may not represent best practices for current development, links to downloads and other resources may no longer be valid. Current recommended version can be found here.

/C (Preserve Comments During Preprocessing)

Preserves comments during preprocessing.


/C

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

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