> Also notes the usage of "unspecified". "Unspecified" means 
> the standard does
> not say anything about the implementation, and, IMHO, the 
> implementors are
> free to choose the best practices. 

... or to not implement anything at all.

> I think it is obviously a 
> good way to
> follow BSD.

Possibly.
The better way for application developers is to follow the Single UNIX Specification.
Any application relying on results that are explicitely marked as "unspecified" in the 
SUS standard can be considered non-portable.

>From the SUSv3 documentation:

APPLICATION USAGE
For applications portability, the time() function should be used to determine the 
current time instead of ftime().

Karsten

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