[#BloombergLP-bdlb-BitStringUtil-insert1]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlb.adoc[bdlb]::xref:BloombergLP/bdlb/BitStringUtil.adoc[BitStringUtil]::insert1
:relfileprefix: ../../../
:mrdocs:

Insert 1 bits into a bit string&period;

== Synopsis

Declared in `&lt;bdlb&lowbar;bitstringutil&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
static
void
insert1(
    uint64&lowbar;t* bitString,
    std::size&lowbar;t initialLength,
    std::size&lowbar;t dstIndex,
    std::size&lowbar;t numBits);
----

== Description

Insert the specified `numBits` 1 bits into the specified `bitString` having the specified `initialLength` beginning at the specified `dstIndex`&period; Bits at or above `dstIndex` are shifted up by `numBits` index positions and the length of `bitString` is increased by `numBits`&period; The behavior is undefined unless `dstIndex &lt;&equals; initialLength` and `bitString` has a capacity of at least `initialLength &plus; numBits`&period;

== Parameters

[cols="1,4"]
|===
| Name| Description
| *bitString*
| bit string to modify
| *initialLength*
| length of `bitString` before insertion
| *dstIndex*
| bit position at which to insert
| *numBits*
| number of 1 bits to insert
|===


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