[#bsl-shared_ptr-0c]
= xref:bsl.adoc[bsl]::xref:bsl/shared_ptr-0a.adoc[shared_ptr<ELEMENT_TYPE>]
:relfileprefix: ../
:mrdocs:

Deduce the specified type `ELEMENT_TYPE` corresponding template parameter of the `bslma::ManagedPtr` supplied to the constructor of `shared_ptr`. This guide does not participate in deduction unless the specified `ALLOC` inherits from `bslma::Allocator`.

== Synopsis

Declared in `<bslstl_sharedptr.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<
    class ELEMENT_TYPE,
    class ALLOC>
requires bsl::is_convertible_v<ALLOC *, BloombergLP::bslma::Allocator *>
xref:bsl/shared_ptr-0a.adoc[shared_ptr<ELEMENT_TYPE>](
    xref:BloombergLP/bslma/ManagedPtr-0fa.adoc[BloombergLP::bslma::ManagedPtr<ELEMENT_TYPE>],
    ALLOC*) -> xref:bsl/shared_ptr-0a.adoc[shared_ptr<ELEMENT_TYPE>];
----


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