[#BloombergLP-bdlde-Sha1-2constructor-01]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlde.adoc[bdlde]::xref:BloombergLP/bdlde/Sha1.adoc[Sha1]::Sha1
:relfileprefix: ../../../
:mrdocs:

Construct a SHA‐1 digest corresponding to the specified `data` having the specified `length` (in bytes). Note that if `data` is null, then `length` must be 0.

== Synopsis

Declared in `<bdlde_sha1.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
Sha1(
    void const* data,
    std::size_t length);
----


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