[#bsl-binary_compose-operator_call-0c]
= xref:bsl.adoc[bsl]::xref:bsl/binary_compose.adoc[binary&lowbar;compose]::operator()
:relfileprefix: ../../
:mrdocs:

Invoke `d&lowbar;fn1(d&lowbar;fn2(x), d&lowbar;fn3(x))` and return the result&period;

== Synopsis

Declared in `&lt;bslstp&lowbar;exfunctional&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:bsl/binary_compose/result_type.adoc[result&lowbar;type]
operator()(xref:bsl/binary_compose/argument_type.adoc[argument&lowbar;type] const& x) const;
----


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