assertion-failed-dialog-box.md

title	Assertion Failed Dialog Box
description	Learn about the Assertion Failed dialog box, which is a dialog box that you might encounter in the debugging user interface of Visual Studio.
ms.date	11/04/2016
ms.topic	ui-reference
f1_keywords	vs.debug.assertions
dev_langs	CSharp VB FSharp C++
helpviewer_keywords	debugging assertions assertions, debugging assertions, assertion failures Assertion Failed dialog box
author	mikejo5000
ms.author	mikejo
ms.subservice	debug-diagnostics

Assertion Failed Dialog Box

An assertion statement specifies a condition that you expect to hold true at some particular point in your program. If that condition does not hold true, the assertion fails, execution of your program is interrupted, and this dialog box appears.

Click	To
Retry	Debug the assertion or get help on asserts.
Ignore	Ignore the assertion and continue running the program.
Abort	Halt execution of the program and end the debugging session.

See also

• C/C++ Assertions