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Help with a function to return the 'age' of itself

• To: mathgroup at smc.vnet.net
• Subject: [mg61392] Help with a function to return the 'age' of itself
• From: "heycarnut" <heycarnut at gmail.com>
• Date: Tue, 18 Oct 2005 02:44:33 -0400 (EDT)
• Sender: owner-wri-mathgroup at wolfram.com

I'm trying to create a function, that when instantiated, keeps a 'copy'
of say the current absolute time, but when the instance is called, it
returns the delta between this 'copy' of the time and the current
absolute time. I have done this:


In[47]:= tt:=Hold[AbsoluteTime[]]-AbsoluteTime[];
         y=tt;
         N[Release[y]]
         Pause[10]
         N[Release[y]]


Out[49]=0.

Out[51]=10.

But I don't want to have to do an explicit release, i'd like to just be
able to evaluate y, in this case, and get the current value.
Help?

Thanks in advance,
Rob

• Follow-Ups:
  • Re: Help with a function to return the 'age' of itself
    • From: "Carl K. Woll" <carl@woll2woll.com>