[#BloombergLP-bslmf-InvokeResult_FuncPtrImp-0c-checkLvalue-0e]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslmf.adoc[bslmf]::xref:BloombergLP/bslmf/InvokeResult_FuncPtrImp-0c.adoc[InvokeResult_FuncPtrImp<bslmf::VoidType<decltype(InvokeResult_ImpUtils::myDeclval<t_FN>()(
                    InvokeResult_ImpUtils::myDeclval<t_ARGTYPES>()...))>::type, t_FN, t_ARGTYPES...>]::checkLvalue
:relfileprefix: ../../../
:mrdocs:

`checkLvalue` overloads

== Synopses

Declared in `<bslmf_invokeresult.h>`

Tag whether the first argument is an lvalue (declared only).


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
static
xref:BloombergLP/bslmf/Tag-0b.adoc[bslmf::Tag<false>]
xref:BloombergLP/bslmf/InvokeResult_FuncPtrImp-0c/checkLvalue-00.adoc[checkLvalue](/* implementation-defined */ arg, ...);
----

[.small]#xref:BloombergLP/bslmf/InvokeResult_FuncPtrImp-0c/checkLvalue-00.adoc[_» more..._]#

Return `bslmf::Tag<true>()` if the first argument is an lvalue.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
static
xref:BloombergLP/bslmf/Tag-0b.adoc[bslmf::Tag<true>]
xref:BloombergLP/bslmf/InvokeResult_FuncPtrImp-0c/checkLvalue-0d.adoc[checkLvalue](
    /* implementation-defined */ arg,
    int unused);
----

[.small]#xref:BloombergLP/bslmf/InvokeResult_FuncPtrImp-0c/checkLvalue-0d.adoc[_» more..._]#

== Parameters

[cols="1,4"]
|===
| Name| Description
| *arg*
| expression whose value category is being tested
| *unused*
| literal `int` used to prefer this overload
|===


[.small]#Created with https://www.mrdocs.com[MrDocs]#