[#XCHECK]
= XCHECK
:mrdocs:

Assert that a condition is true.

== Synopsis

Declared in `<folly/logging/xlog.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
#define XCHECK(cond, ...)

----

== Description

This crashes the program with an XLOG(FATAL) message if the condition is false. Unlike assert() CHECK statements are always enabled, regardless of the setting of NDEBUG.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *cond*
| The condition expression that must evaluate to true.
|===


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