CreateGuid MEX

MEX to create a Globally Unique Identifier GUID

Description

A MEX file to calculate a GUID. A Globally Unique Identifier or GUID is a pseudo-random number used in software applications. Each generated GUID is "statistically guaranteed" to be unique. This is based on the simple principle that the total number of unique keys ( or ) is so large that the possibility of the same number being generated twice is virtually zero.

To compile:

 mex CreateGuid.c rpcrt4.lib

I also tried to implement with .net but I found it to be much slower when needing a lot of GUIDs.

• MATLAB release: MATLAB 7.2 (R2006a)
• Other requirements: Tested under Microsoft Visual Studio 6. I will test and/or develop this under MAC OSX and VS 7.1 when I have the resources available.

[Steve Hoelzer]

Worked as advertised and really useful. I compiled it with MS Visual C++ .NET 2003. Could use a readme file or a few more comments in the code.

[Joseph Burgel]

Had some issues compiling this in Windows 7 an ML 2010a. After a little digging, I found:
x = java.util.UUID.randomUUID()
which worked fine for my purpose. Thanks.

[Tom]

Thanks Joseph ... your solution worked for me (after casting to char)

char(java.util.UUID.randomUUID)