How to avoid repeated names?

[shuisheng]

Dear All,

Assume each objects in my code has its own name. And they cannot be the
same. Is there any good way to avoid the repeated names?

Bests,

Shuisheng

[Victor Bazarov]

shuisheng wrote:

Assume each objects in my code has its own name. And they cannot be
the same. Is there any good way to avoid the repeated names?

Have a name generator based on date/time/counter and use it. Your
name generator has to be a singleton.

If you're not talking of naming your run-time objects, then I am
not sure what you're talking about.

V
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[jolz]

Have a name generator based on date/time/counter and use it. Your

name generator has to be a singleton.

I wouldn't suggest time. Those computers can be really fast and time
may not guarantee unique names. Counter should work well (unless it is
something like
int name_suffix = last_name_suffix++;
with no synchronization and more than 1 thread).

[Jim Langston]

"shuisheng" <sh*********@yahoo.comwrote in message
news:11**********************@b28g2000cwb.googlegr oups.com...

Dear All,

Assume each objects in my code has its own name. And they cannot be the
same. Is there any good way to avoid the repeated names?

Bests,

Shuisheng

If you really need a unique name/key consider using a GUID. This gets
generated based on a number of things ( date, time, mac address ) with no
two being the same if generated on your computer. In theory a GUID is
supposed to be unique from any other GUID anywhere, but the fact is that
although MAC addresses (your network cards identifer) are supposed to be
unique, I knew one company that reused them.

Pain in the neck, put in a nic card and not have it be able to obtain an IP
from the DHCP server, go to the server, it says that there are 2 computers
on the network with the same MAC address. Call the company, they replaced
the card with another one with a different MAC address.

Anyway, you should be able to use a GUID and your computer should even have
a generator for it that you can tie into. You'll need to look at your OS
documentation or google.