[#BloombergLP-bslstl-Optional_Base-05-value_or-07]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslstl.adoc[bslstl]::xref:BloombergLP/bslstl/Optional_Base-05.adoc[Optional_Base]::value_or
:relfileprefix: ../../../
:mrdocs:

`value_or` overloads

== Synopses

Declared in `<bslstl_optional.h>`

Return a copy of the underlying object of a (template parameter) `t_TYPE` if this object is non‐null, and the specified `value` converted to `t_TYPE` otherwise. Note that this method returns _by_ _value_, so may be inefficient in some contexts.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<class t_ANY_TYPE>
t_TYPE
xref:BloombergLP/bslstl/Optional_Base-05/value_or-09.adoc[value_or](t_ANY_TYPE&& value) &&;
----

[.small]#xref:BloombergLP/bslstl/Optional_Base-05/value_or-09.adoc[_» more..._]#

Return a copy of the underlying object of a (template parameter) `t_TYPE` if this object is non‐null, and the specified `value` converted to `t_TYPE` otherwise. Note that this method returns _by_ _value_, so may be inefficient in some contexts.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<class t_ANY_TYPE>
t_TYPE
xref:BloombergLP/bslstl/Optional_Base-05/value_or-04a.adoc[value_or](t_ANY_TYPE&& value) const &;
----

[.small]#xref:BloombergLP/bslstl/Optional_Base-05/value_or-04a.adoc[_» more..._]#

If this object is non‐null, return a copy of the underlying object of a (template parameter) `t_TYPE` created using the provided allocator, and the specified `value` converted to `t_TYPE` using the specified `allocator` otherwise. Note that this method returns _by_ _value_, so may be inefficient in some contexts.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<class t_ANY_TYPE>
t_TYPE
xref:BloombergLP/bslstl/Optional_Base-05/value_or-0a.adoc[value_or](
    std::allocator_arg_t,
    xref:BloombergLP/bslstl/Optional_Base-05/allocator_type.adoc[allocator_type] allocator,
    t_ANY_TYPE&& value) &&;
----

[.small]#xref:BloombergLP/bslstl/Optional_Base-05/value_or-0a.adoc[_» more..._]#

If this object is non‐null, return a copy of the underlying object of a (template parameter) `t_TYPE` created using the provided allocator, and the specified `value` converted to `t_TYPE` using the specified `allocator` otherwise. Note that this method returns _by_ _value_, so may be inefficient in some contexts.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<class t_ANY_TYPE>
t_TYPE
xref:BloombergLP/bslstl/Optional_Base-05/value_or-041.adoc[value_or](
    std::allocator_arg_t,
    xref:BloombergLP/bslstl/Optional_Base-05/allocator_type.adoc[allocator_type] allocator,
    t_ANY_TYPE&& value) const &;
----

[.small]#xref:BloombergLP/bslstl/Optional_Base-05/value_or-041.adoc[_» more..._]#


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