| description | Learn more about: _DEBUG | ||
|---|---|---|---|
| title | _DEBUG | ||
| ms.date | 11/04/2016 | ||
| helpviewer_keywords |
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| ms.assetid | a9901568-4846-4731-a404-399d947e2e7a |
The compiler defines _DEBUG when you specify the /MTd or /MDd option. These options specify debug versions of the C run-time library.
For more information, see CRT debugging techniques.