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Re: restricted hashes, and other readonlyness (was "clamp...")

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Nick Ing-Simmons
November 3, 2001 05:37
Re: restricted hashes, and other readonlyness (was "clamp...")
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Paul Johnson <> writes:
>On Fri, Nov 02, 2001 at 02:44:20PM -0500, Michael G Schwern wrote:
>> They're just two levels of deletion which we find handy.  It allows
>> one to cram FOUR meanings into an individual hash value:
>>     1) There is a true value here
>>     2) There is a false value here
>>     3) There is an undefined value here
>>     4) There is no value here
>Why stop at four?  VHDL has a nine valued logic type.  How are we going
>to properly describe hardware without it?

Coincidentally ;-) 
The class(es) I have that would be ideally suited to the 
non-deletable form of restricted hashes are part of my hardware 
describing package.

Nick Ing-Simmons

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