[#BloombergLP-bslx-MarshallingUtil-putInt64]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslx.adoc[bslx]::xref:BloombergLP/bslx/MarshallingUtil.adoc[MarshallingUtil]::putInt64
:relfileprefix: ../../../
:mrdocs:

Store an eight‐byte integer into the specified `buffer`.

== Synopsis

Declared in `<bslx_marshallingutil.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
static
void
putInt64(
    char* buffer,
    xref:BloombergLP/bsls/Types/Int64.adoc[bsls::Types::Int64] value);
----

== Description

Load into the specified `buffer` the eight‐byte, two's complement integer (in network byte order) comprised of the least‐significant eight bytes of the specified `value` (in host byte order). The behavior is undefined unless `buffer` has sufficient capacity. Note that this function applies equally to unsigned 64‐bit values.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *buffer*
| destination buffer in network byte order
| *value*
| host‐order eight‐byte integer to write
|===


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