[#BloombergLP-balcl-CommandLineOptionsHandle-the-0e] = xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/balcl.adoc[balcl]::xref:BloombergLP/balcl/CommandLineOptionsHandle.adoc[CommandLineOptionsHandle]::the :relfileprefix: ../../../ :mrdocs: 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()`). == Synopsis Declared in `<balcl_commandline.h>` [source,cpp,subs="verbatim,replacements,macros,-callouts"] ---- template<class TYPE> TYPE const& the(std::size_t index) const; ---- [.small]#Created with https://www.mrdocs.com[MrDocs]#