Re: casting types

[brbarkstrom@gmail.com]

On Monday, October 6, 2014 8:03:44 PM UTC-4, Jeffrey Carter wrote:
> On 10/06/2014 04:36 PM, brbarkstrom@gmail.com wrote:
> 
> > 
> 
> > First, to be safe in doing any floating point arithmetic, you should
> 
> > use the Ada type long_float.
> 
> 
> 
> No, you shouldn't. First, Long_Float is optional; there is no guarantee that a
> 
> compiler implements it, so if you want your code to be portable you'll avoid it.
> 
> Even if it is defined, it need not be any different from Float. Second, given
> 
> that McCormick identified modeling scalars (using user-defined numeric and
> 
> enumeration types) as the main Ada feature that allowed his students to be
> 
> successful, advice to always use a predefined type should rightly be regarded
> 
> with suspicion.
> 
> 
> 
> If you have an application that needs the maximum precision the compiler can
> 
> give you, you should define a floating-point type using System.Max_Digits.
> 
> 
> 
> >    return (Result);
> 
> 
> 
> There is no need for parentheses here.
> 
> 
> 
> -- 
> 
> Jeff Carter
> 
> "I was hobbling along, minding my own business, all of a
> 
> sudden, up he comes, cures me! One minute I'm a leper with
> 
> a trade, next minute my livelihood's gone! Not so much as a
> 
> 'by your leave!' You're cured, mate. Bloody do-gooder!"
> 
> Monty Python's Life of Brian
> 
> 76
Thanks for the correction.