[#BloombergLP-bdlf-Bind_Evaluator-01]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlf.adoc[bdlf]::xref:BloombergLP/bdlf/Bind_Evaluator-0b.adoc[Bind_Evaluator]<xref:BloombergLP/bdlf/PlaceHolder.adoc[PlaceHolder<t_INDEX>], t_ARG_TUPLE>
:relfileprefix: ../../
:mrdocs:

This partial specialization of `Bind_Evaluator` provides an argument evaluator that substitutes the place‐holder at position `t_INDEX` with the corresponding element in the specified `t_ARG_TUPLE`.

== Synopsis

Declared in `<bdlf_bind.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<
    int t_INDEX,
    class t_ARG_TUPLE>
struct xref:BloombergLP/bdlf/Bind_Evaluator-0b.adoc[Bind_Evaluator]<xref:BloombergLP/bdlf/PlaceHolder.adoc[PlaceHolder<t_INDEX>], t_ARG_TUPLE>;
----

== Type Aliases

[cols="1"]
|===
| Name
| xref:BloombergLP/bdlf/Bind_Evaluator-01/ReturnType.adoc[`ReturnType`] 
|===


== Static Member Functions

[cols="1,4"]
|===
| Name| Description
| xref:BloombergLP/bdlf/Bind_Evaluator-01/eval-04.adoc[`eval`] 
| `eval` overloads
|===



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