title Selection Statements (C++) | Microsoft Docs ms.custom ms.date 11/04/2016 ms.reviewer ms.suite ms.technology cpp-language ms.tgt_pltfrm ms.topic index-page dev_langs C++ helpviewer_keywords selection statements [C++], syntax selection statements ms.assetid 2ce662fc-5e62-461b-ac31-2c159d8ef33b caps.latest.revision 6 author mikeblome ms.author mblome manager ghogen Selection Statements (C++) The C++ selection statements, if and switch, provide a means to conditionally execute sections of code. The __if_exists and __if_not_exists statements allow you to conditionally include code depending on the existence of a symbol. See the individual topics for the syntax for each statement. See Also Overview of C++ Statements