For a C/C++ Project With Existing Sources, the Configure Code Assistance wizard lets you specify how your code will be parsed by the built-in parser used for the code assistance features of the IDE.
The View Configuration page displays the options you have defined. These options are stored in the project properties for the active configuration of your project.
Click Finish to complete the wizard.
When you finish the wizard, you can view the Project Properties dialog box to see the include directories and preprocessor definitions that will be used for parsing the project. Right-click the project and choose Properties, and expand the Code Assistance node. Select the C compiler or C++ compiler.