description	Learn more about: Null directive
title	Null directive
ms.date	08/29/2019
helpviewer_keywords	preprocessor directives, Null null directive preprocessor directives preprocessor, directives
ms.assetid	df59990f-b420-43f3-b415-5c25493abeee

Null directive

The null preprocessor directive is a single number sign (#) alone on a line. It has no effect.

Syntax

#

See also

Preprocessor directives