mixed mode interval expressions, interval/output, and decimal constant to interval conversions

["G. William (Bill) Walster" <bill@xxxxxxxxxxx>]

Like somebody else wrote, I mostly avoid looking at the postings to this 
alias, as they are so depressing.

Has nobody bothered to look at the documentation for the intrinsic 
implementation of interval data types in Sun's Fortran compiler where 
all the issues currently being grappled with have been solved?  For shame!

See:

<http://www.lncc.br/sta/manuais/Fortran95_Prog_Ref.pdf>

<http://docs.oracle.com/cd/E19422-01/819-3695/iapgFusing.html>

and

<http://dsc.sun.com/sunstudio/codesamples/s1scc7_examples/IAF95codesamples.html>

code examples for all the examples in the Programmer's Reference Manual.

I will not watch this alias for additional postings on this matter as 
they are likely to be depressing and I am busy working on more important 
interval matters.

Regards,

Bill Walster





Bill Walster.

On 3/9/13 4:55 PM, Ralph Baker Kearfott wrote:
> Ah, yes.  That is understood.  However, doesn't
> 752-2008 specify that, if a recommended function is
> supplied, it shall have certain properties for it
> to be standard-conforming?
>
> Baker
>
> On 03/09/2013 08:49 AM, Vincent Lefevre wrote:
> > On 2013-03-09 07:48:08 -0600, Ralph Baker Kearfott wrote:
> .
> .
> .
> > First, the C standard mentions the 1985 version. Moreover, even with
> > the 2008 version, the math functions are recommended, not required.
> > So, even though C provides math functions, they are not necessarily
> > correctly rounded. The error bound may not even be known, making all
> > IA implementation impossible from the std library version.