dx-graphics-hlsl-appendix-pre-pragma.md

title	description	ms.assetid	keywords	topic_type	api_name	api_type	ms.topic	ms.date	api_location
pragma Directive	Preprocessor directive that provides machine-specific or operating system-specific features while retaining overall compatibility with the C and C++ languages.	806ddb9b-ae4b-4dd3-a2c4-39c9cb7f3820	pragma Directive HLSL	apiref	pragma Directive	NA	reference	05/31/2018

#pragma Directive

Preprocessor directive that provides machine-specific or operating system-specific features while retaining overall compatibility with the C and C++ languages.

#pragma token-string

Parameters

Item	Description
token-string	Series of characters that gives a specific compiler instruction and arguments. This parameter is subject to macro expansion.

Remarks

If the compiler finds a pragma it does not recognize, it issues a warning, but compilation continues.

The HLSL compiler recognizes the following pragmas:

• def
• message
• pack_matrix
• warning

See also

Preprocessor Directives (DirectX HLSL)