[#BloombergLP-bslma-ManagedPtr_TraitConstraint]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslma.adoc[bslma]::ManagedPtr_TraitConstraint
:relfileprefix: ../../
:mrdocs:

This `struct` is an empty type that exists solely to enable constructor access to be constrained by type trait.

== Synopsis

Declared in `<bslma_managedptr.h>`

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