[#BloombergLP-bslh-hashAppend-0a]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslh.adoc[bslh]::hashAppend
:relfileprefix: ../../
:mrdocs:

Pass the specified `input` to the specified `hashAlgorithm` hashing algorithm of the (template parameter) type `HASH_ALGORITHM`. Note that this function violates the BDE coding standard, adding a function for a namespace for a different package, and none of the function parameters are from this package either. This is necessary in order to provide an implementation of `bslh::hashAppend` for the (native) standard library `array` type as we are not allowed to add overloads directly into namespace `std`, and this component essentially provides the interface between `bsl` and `std` array types.

== Synopsis

Declared in `<bslstl_array.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<
    class HASH_ALGORITHM,
    class TYPE,
    size_t SIZE>
void
hashAppend(
    HASH_ALGORITHM& hashAlgorithm,
    std::array<TYPE, SIZE> const& input);
----


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