[#BloombergLP-bdlc-BitArray-toggle-0db]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlc.adoc[bdlc]::xref:BloombergLP/bdlc/BitArray.adoc[BitArray]::toggle
:relfileprefix: ../../../
:mrdocs:

Complement `numBits` bits in this array beginning at `index`.

== Synopsis

Declared in `<bdlc_bitarray.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
void
toggle(
    std::size_t index,
    std::size_t numBits);
----

== Description

Complement the values of each of the specified `numBits` in this array, beginning at the specified `index`. The behavior is undefined unless `index + numBits <= length()`.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *index*
| starting bit position to complement
| *numBits*
| number of bits to complement
|===


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