[#BSLALG_DECLARE_NESTED_TRAITS]
= BSLALG_DECLARE_NESTED_TRAITS
:mrdocs:

Associate the specified `TRAIT` tag with the specified `T` class.

== Synopsis

Declared in `<bslalg_typetraits.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
#define BSLALG_DECLARE_NESTED_TRAITS(T, TRAIT)

----

== Description

This macro must be invoked only within the public part of the definition of class `T`. `TRAIT` must name a class such that `TRAIT::NestedTraitDeclaration<T>` designates a class derived from `bslmf::DetectNestedTrait`.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *T*
| class with which to associate the trait
| *TRAIT*
| trait tag to associate with `T`
|===


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