Hi Patrick,
On Monday, 2009-12-21 08:36:22 -0500, Patrick Durusau wrote:
>>> Just so I remember to capture it, under the various bit operators,
>>> not that there is a portability constraint but then under semantics,
>>> an implementation must support at least up to 48 bits. No mention of
>>> portability.
>>>
>>
>> There are portable constraints 0 <= x < 2^48
>>
>>
>>> (Yes, I will change "implementation" but this sounds like, looks
>>> like, walks like a constraint on evaluators and not on expressions.
>>>
>>
>> It is a constraint of the expression to be portable, an evaluator shall
>> support at least 48 bits.
>>
>>
> You mean that in order to support the portability of a certain class of
> expressions, evaluators are constrained to support a minimal set of
> values.
Yes, though instead of "constrained to support a minimal set" I'd say
"required to support a minimal set", I might be wrong but to me
constrained sounds like restricted.
Eike
--
Automatic string conversions considered dangerous. They are the GOTO statements
of spreadsheets. --Robert Weir on the OpenDocument formula subcommittee's list.
