[#BloombergLP-bdlb-BitUtil-withBitSet-00]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlb.adoc[bdlb]::xref:BloombergLP/bdlb/BitUtil.adoc[BitUtil]::withBitSet
:relfileprefix: ../../../
:mrdocs:

Return the result of replacing the bit at the specified `index` in the specified `value` with 1, transferring all other bits from `value` unchanged. The behavior is undefined unless `0 <= index < sizeInBits(value)`.

== Synopsis

Declared in `<bdlb_bitutil.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
static
unsigned int
withBitSet(
    unsigned int value,
    int index);
----


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