[#BloombergLP-bdlc-operator_lshift-0683]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlc.adoc[bdlc]::operator<<
:relfileprefix: ../../
:mrdocs:

Left shift operators

== Synopses

Declared in `<bdlc_bitarray.h>`

Write the value of the specified `array` to the specified output `stream` in a single‐line format, and return a reference providing modifiable access to `stream`. If `stream` is not valid on entry, this operation has no effect. Note that this human‐readable format is not fully specified and can change without notice.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<class TYPE>
std::ostream&
xref:BloombergLP/bdlc/operator_lshift-00.adoc[operator<<](
    std::ostream& stream,
    xref:BloombergLP/bdlc/PackedIntArray-0b.adoc[PackedIntArray<TYPE>] const& array);
----

[.small]#xref:BloombergLP/bdlc/operator_lshift-00.adoc[_» more..._]#

Return the value of the specified `array` left‐shifted by the specified `numBits` positions, having filled the lower‐index positions with zeros. The behavior is undefined unless `numBits <= array.length()`. Note that the length of the result equals the length of the original array, and that the highest‐order `numBits` are discarded in the result.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:BloombergLP/bdlc/BitArray.adoc[bdlc::BitArray]
xref:BloombergLP/bdlc/operator_lshift-0688.adoc[operator<<](
    xref:BloombergLP/bdlc/BitArray.adoc[BitArray] const& array,
    std::size_t numBits);
----

[.small]#xref:BloombergLP/bdlc/operator_lshift-0688.adoc[_» more..._]#

Format the bits in the specified `rhs` bit array to the specified output `stream` in a single‐line format, and return a reference to `stream`.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
std::ostream&
xref:BloombergLP/bdlc/operator_lshift-0f.adoc[operator<<](
    std::ostream& stream,
    xref:BloombergLP/bdlc/BitArray.adoc[BitArray] const& rhs);
----

[.small]#xref:BloombergLP/bdlc/operator_lshift-0f.adoc[_» more..._]#

Write the value of the specified `array` to the specified output `stream` in a single‐line format, and return a reference providing modifiable access to `stream`. If `stream` is not valid on entry, this operation has no effect. Note that this human‐readable format is not fully specified and can change without notice.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<class TYPE>
std::ostream&
xref:BloombergLP/bdlc/operator_lshift-0d3.adoc[operator<<](
    std::ostream& stream,
    xref:BloombergLP/bdlc/CompactedArray.adoc[CompactedArray<TYPE>] const& array);
----

[.small]#xref:BloombergLP/bdlc/operator_lshift-0d3.adoc[_» more..._]#

Write the value of the specified `map` to the specified output `stream` in a single‐line format, and return a reference providing modifiable access to `stream`. If `stream` is not valid on entry, this operation has no effect. Note that this human‐readable format is not fully specified and can change without notice.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<
    class KEY,
    class VALUE,
    class HASH,
    class EQUAL>
std::ostream&
xref:BloombergLP/bdlc/operator_lshift-04.adoc[operator<<](
    std::ostream& stream,
    xref:BloombergLP/bdlc/FlatHashMap.adoc[FlatHashMap<KEY, VALUE, HASH, EQUAL>] const& map);
----

[.small]#xref:BloombergLP/bdlc/operator_lshift-04.adoc[_» more..._]#

Write the specified `queue` to the specified output `stream` and return a reference to the modifiable `stream`.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<class T>
std::ostream&
xref:BloombergLP/bdlc/operator_lshift-08.adoc[operator<<](
    std::ostream& stream,
    xref:BloombergLP/bdlc/Queue.adoc[Queue<T>] const& queue);
----

[.small]#xref:BloombergLP/bdlc/operator_lshift-08.adoc[_» more..._]#

Write the specified `rhs` index clerk to the specified output `stream` in some single‐line (human‐readable) format, and return a reference to the modifiable `stream`.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
std::ostream&
xref:BloombergLP/bdlc/operator_lshift-0d5.adoc[operator<<](
    std::ostream& stream,
    xref:BloombergLP/bdlc/IndexClerk.adoc[IndexClerk] const& rhs);
----

[.small]#xref:BloombergLP/bdlc/operator_lshift-0d5.adoc[_» more..._]#

Write the value of the specified `set` to the specified output `stream` in a single‐line format, and return a reference providing modifiable access to `stream`. If `stream` is not valid on entry, this operation has no effect. Note that this human‐readable format is not fully specified and can change without notice.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<
    class KEY,
    class HASH,
    class EQUAL>
std::ostream&
xref:BloombergLP/bdlc/operator_lshift-0c.adoc[operator<<](
    std::ostream& stream,
    xref:BloombergLP/bdlc/FlatHashSet.adoc[FlatHashSet<KEY, HASH, EQUAL>] const& set);
----

[.small]#xref:BloombergLP/bdlc/operator_lshift-0c.adoc[_» more..._]#


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