[#absl-Span-2constructor-0a1]
= xref:absl.adoc[absl]::xref:absl/Span.adoc[Span]::Span
:relfileprefix: ../../
:mrdocs:

Constructors

== Synopses

Declared in `<absl/types/span.h>`

Constructs an empty span.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
constexpr
xref:absl/Span/2constructor-062.adoc[Span]() noexcept;
----

[.small]#xref:absl/Span/2constructor-062.adoc[_» more..._]#

Constructs a span referring to a C array.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<size_t N>
constexpr
xref:absl/Span/2constructor-06a.adoc[Span](T(& a)[]) noexcept;
----

[.small]#xref:absl/Span/2constructor-06a.adoc[_» more..._]#

Constructs a read‐only span from an initializer list.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<
    typename LazyT = T,
    typename = LazyT>
xref:absl/Span/2constructor-08.adoc[Span](std::initializer_list<value_type> v) noexcept;
----

[.small]#xref:absl/Span/2constructor-08.adoc[_» more..._]#

Constructs a mutable span from a container.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<
    typename V,
    typename = xref:absl/Span.adoc[EnableIfConvertibleFrom<V>],
    typename = V,
    typename = span_internal::EnableIfNotIsView<V>>
explicit
xref:absl/Span/2constructor-0a2.adoc[Span](V& v) noexcept;
----

[.small]#xref:absl/Span/2constructor-0a2.adoc[_» more..._]#

Constructs a mutable span from a view type (no lifetime bound).


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<
    typename V,
    typename = xref:absl/Span.adoc[EnableIfConvertibleFrom<V>],
    typename = V,
    span_internal::EnableIfIsView<V> = 0>
explicit
xref:absl/Span/2constructor-04.adoc[Span](V& v) noexcept;
----

[.small]#xref:absl/Span/2constructor-04.adoc[_» more..._]#

Constructs a read‐only `Span<const T>` from a container.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<
    typename V,
    typename = xref:absl/Span.adoc[EnableIfConvertibleFrom<V>],
    typename = V,
    typename = span_internal::EnableIfNotIsView<V>>
constexpr
xref:absl/Span/2constructor-09.adoc[Span](V const& v) noexcept;
----

[.small]#xref:absl/Span/2constructor-09.adoc[_» more..._]#

Constructs a read‐only span from a view type (no lifetime bound).


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<
    typename V,
    typename = xref:absl/Span.adoc[EnableIfConvertibleFrom<V>],
    typename = V,
    span_internal::EnableIfIsView<V> = 0>
constexpr
xref:absl/Span/2constructor-07.adoc[Span](V const& v) noexcept;
----

[.small]#xref:absl/Span/2constructor-07.adoc[_» more..._]#

Constructs a span from a pointer and a length.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
constexpr
xref:absl/Span/2constructor-00.adoc[Span](
    xref:absl/Span/pointer.adoc[pointer] array,
    xref:absl/Span/size_type.adoc[size_type] length) noexcept;
----

[.small]#xref:absl/Span/2constructor-00.adoc[_» more..._]#

== Parameters

[cols="1,4"]
|===
| Name| Description
| *a*
| The array to refer to.
| *v*
| The initializer list whose data the span refers to.
| *array*
| Pointer to the first element.
| *length*
| Number of elements in the span.
|===


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