[#BloombergLP-bslalg-TypeTraitNil]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslalg.adoc[bslalg]::TypeTraitNil
:relfileprefix: ../../
:mrdocs:

Nil trait ‐‐ every type has this trait.

== Synopsis

Declared in `<bslalg_typetraitnil.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
struct TypeTraitNil;
----

== Types

[cols="1,4"]
|===
| Name| Description
| xref:BloombergLP/bslalg/TypeTraitNil/Metafunction.adoc[`Metafunction`] 
| Metafunction that evaluates to `true_type` for any `TYPE`.
| xref:BloombergLP/bslalg/TypeTraitNil/NestedTraitDeclaration.adoc[`NestedTraitDeclaration`] 
| This meta‐function returns `true_type` for any type that is queried for the nil trait.
|===



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