[#beman-optional-make_optional-02]
= xref:beman.adoc[beman]::xref:beman/optional.adoc[optional]::make_optional
:relfileprefix: ../../
:mrdocs:

`make_optional` overloads

== Synopses

Declared in `<beman/optional/optional.hpp>`

Creates an optional holding a decayed copy of the given value.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<
    int = 0,
    class T>
constexpr
xref:beman/optional/optional-03.adoc[optional<std::decay_t<T>>]
xref:beman/optional/make_optional-05.adoc[make_optional](T&& t) noexcept(/* see-below */)
requires std::is_constructible_v<std::decay_t<T>, T>;
----

[.small]#xref:beman/optional/make_optional-05.adoc[_» more..._]#

Creates an optional<T> constructing the value in‐place from the given arguments.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<
    typename T,
    typename... Args>
constexpr
xref:beman/optional/optional-03.adoc[optional<T>]
xref:beman/optional/make_optional-00.adoc[make_optional](Args&&... args) noexcept(/* see-below */)
requires std::is_constructible_v<T, Args...>;
----

[.small]#xref:beman/optional/make_optional-00.adoc[_» more..._]#

Creates an optional<T> constructing the value in‐place from an initializer list and arguments.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<
    typename T,
    typename U,
    typename... Args>
constexpr
xref:beman/optional/optional-03.adoc[optional<T>]
xref:beman/optional/make_optional-0f.adoc[make_optional](
    std::initializer_list<U> il,
    Args&&... args) noexcept(/* see-below */)
requires std::is_constructible_v<T, std::initializer_list<U>&, Args...>;
----

[.small]#xref:beman/optional/make_optional-0f.adoc[_» more..._]#

== Return Value

* An engaged optional whose contained value is constructed from `t.`
* An engaged optional<T> holding the in‐place constructed value.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *t*
| The value to store in the returned optional.
| *args*
| The arguments forwarded to the constructor of `T.`
| *il*
| The initializer list forwarded to the constructor of `T.`
|===


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