# dD, QdD

Same as option -dM, but outputs #define directives in preprocessed source.

## Syntax

Linux: | -dD

macOS: | -dD

Windows: | /QdD

## Arguments

None

## Default

OFF | The compiler does not output #define directives.

## Description

Same as -dM, but outputs #define directives in preprocessed source. To use this option, you must also specify the E option.

## IDE Equivalent

None

## Alternate Options

None

Parent topic: Preprocessor Options