[#BloombergLP-bdlb-ScopeExit-0e-2constructor-06]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlb.adoc[bdlb]::xref:BloombergLP/bdlb/ScopeExit-0e.adoc[ScopeExit]::ScopeExit
:relfileprefix: ../../../
:mrdocs:

Create a `ScopeExit` object, which, upon its destruction will invoke the specified `function` (or functor) unless its `release` method was called. If `function` is copied into the `EXIT_FUNC` member, and that copy throws an exception, invoke `function` and rethrow the exception. If `EXIT_FUNC_PARAM` cannot be move converted to `EXIT_FUNC` via no‐throw means (either because such conversion does not exist or it is not marked as non‐throwing), `function` will always be copied into the member. This constructor participates in overload resolution only if `EXIT_FUNC_PARAM` is neither `EXIT_FUNC` nor `bdlb::ScopeExit<EXIT_FUNC>` and `EXIT_FUNC_PARAM` is convertible to `EXIT_FUNC`. The behavior is undefined if `function` or the member instance of `EXIT_FUNC` throws an exception upon invocation.

== Synopsis

Declared in `<bdlb_scopeexit.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<class EXIT_FUNC_PARAM>
explicit
ScopeExit(
    EXIT_FUNC_PARAM&& function,
    void* = 0)
requires bsl::is_constructible<  // Copy construct
            EXIT_FUNC,
            const typename MoveUtil::Decay<EXIT_FUNC_PARAM>::type&
        >::value                                                             ||
        bsl::is_constructible<  // Move construct
            EXIT_FUNC,
            bslmf::MovableRef<typename MoveUtil::Decay<EXIT_FUNC_PARAM>::type>
        >::value;
----


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