[#BloombergLP-bdlb-Guid-2constructor-0a]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlb.adoc[bdlb]::xref:BloombergLP/bdlb/Guid.adoc[Guid]::Guid
:relfileprefix: ../../../
:mrdocs:

Constructors

== Synopses

Declared in `<bdlb_guid.h>`

Construct a zero‐initialized guid object. Note that a zero‐ initialized guid object is not a GUID according to RFC 4122.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:BloombergLP/bdlb/Guid/2constructor-04.adoc[Guid]();
----

[.small]#xref:BloombergLP/bdlb/Guid/2constructor-04.adoc[_» more..._]#

Construct a guid object from the specified `buffer`.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
explicit
xref:BloombergLP/bdlb/Guid/2constructor-0b.adoc[Guid](unsigned char const(& buffer)[]);
----

[.small]#xref:BloombergLP/bdlb/Guid/2constructor-0b.adoc[_» more..._]#

Construct a guid object from RFC 4122 field values.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:BloombergLP/bdlb/Guid/2constructor-07.adoc[Guid](
    unsigned long timeLow,
    unsigned short timeMid,
    unsigned short timeHiAndVersion,
    unsigned char clockSeqHiRes,
    unsigned char clockSeqLow,
    xref:BloombergLP/bsls/Types/Uint64.adoc[bsls::Types::Uint64] node);
----

[.small]#xref:BloombergLP/bdlb/Guid/2constructor-07.adoc[_» more..._]#

== Parameters

[cols="1,4"]
|===
| Name| Description
| *buffer*
| byte array; first byte is most significant
| *timeLow*
| RFC 4122 `time_low` field
| *timeMid*
| RFC 4122 `time_mid` field
| *timeHiAndVersion*
| RFC 4122 `time_hi_and_version` field
| *clockSeqHiRes*
| RFC 4122 `clk_seq_hi_res` field
| *clockSeqLow*
| RFC 4122 `clk_seq_low` field
| *node*
| RFC 4122 `node` field; only the least significant 48 bits are used
|===


[.small]#Created with https://www.mrdocs.com[MrDocs]#