[#BloombergLP-balcl-CommandLineOptionsHandle-the-02]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/balcl.adoc[balcl]::xref:BloombergLP/balcl/CommandLineOptionsHandle.adoc[CommandLineOptionsHandle]::the
:relfileprefix: ../../../
:mrdocs:

`the` overloads

== Synopses

Declared in `<balcl_commandline.h>`

Return a `const` reference to the value of the option at the specified `index`. Template parameter `TYPE` must be one of the supported types (see {Supported Types}). The behavior is undefined unless `index < numOptions()`, the option has the (template parameter) `TYPE` (i.e., `OptionType::TypeToEnum<TYPE>::value == type(index)`), and the option has a value (i.e., `false == value(index).isNull()`).


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<class TYPE>
TYPE const&
xref:BloombergLP/balcl/CommandLineOptionsHandle/the-0e.adoc[the](std::size_t index) const;
----

[.small]#xref:BloombergLP/balcl/CommandLineOptionsHandle/the-0e.adoc[_» more..._]#

Return a `const` reference to the value of the option having the specified `name`. Template parameter `TYPE` must be one of the supported types (see {Supported Types}). The behavior is undefined unless this handle object has a `name` option (i.e., `0 <= index(name)`), the option has (template parameter) `TYPE` (i.e., `OptionType::TypeToEnum<TYPE>::value == type(name)`), and the option has a value (i.e., `false == value(name).isNull()`).


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<class TYPE>
TYPE const&
xref:BloombergLP/balcl/CommandLineOptionsHandle/the-08.adoc[the](std::string_view const& name) const;
----

[.small]#xref:BloombergLP/balcl/CommandLineOptionsHandle/the-08.adoc[_» more..._]#


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