[#BloombergLP-bdldfp-hashAppend-0bd]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdldfp.adoc[bdldfp]::hashAppend
:relfileprefix: ../../
:mrdocs:

Pass the specified `object` to the specified `hashAlg`.

== Synopsis

Declared in `<bdldfp_decimal.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<class HASHALG>
void
hashAppend(
    HASHALG& hashAlg,
    xref:BloombergLP/bdldfp/Decimal128.adoc[Decimal128] const& object);
----

== Description

This function integrates with the `bslh` modular hashing system and effectively provides a `bsl::hash` specialization for `Decimal128`. Note that two objects which have the same value but different representations will hash to the same value.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *hashAlg*
| hashing algorithm functor
| *object*
| decimal value to incorporate into the hash
|===


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