Re: [elm-discuss] Some questions about types.

['Rupert Smith' via Elm Discuss]

On Tuesday, September 20, 2016 at 2:37:29 PM UTC+1, Rupert Smith wrote:
>
> On Tuesday, September 20, 2016 at 2:08:31 PM UTC+1, Joey Eremondi wrote:
>>
>> Both int and float end up as a JS number at the end of the day, so 
>> definitely bounded. Defer to the JS spec?
>>
>
> http://www.w3schools.com/js/js_numbers.asp
>
> Says "Javascript numbers are always 64-bit floating point". 
>
> Which means a 52-bit mantissa, so ints are bit less than 64-bit... bit of 
> a bugger as that means where I have used a 64-bit for an object id, I 
> should really pass as a String and parse into a Data.Integer. Thanks.
>

Or just use a String for that case. I can treat all ids as opaque String 
values.

I can probably also user String for big decimals, since the aim would be to 
capture/display a decimal value such that binary rounding errors are not 
introduced, rather than to perform arithmetic with them.

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Re: [elm-discuss] Some questions about types.

['Rupert Smith' via Elm Discuss]

On Tuesday, September 20, 2016 at 2:08:31 PM UTC+1, Joey Eremondi wrote:
>
> Both int and float end up as a JS number at the end of the day, so 
> definitely bounded. Defer to the JS spec?
>

http://www.w3schools.com/js/js_numbers.asp

Says "Javascript numbers are always 64-bit floating point". 

Which means a 52-bit mantissa, so ints are bit less than 64-bit... bit of a 
bugger as that means where I have used a 64-bit for an object id, I should 
really pass as a String and parse into a Data.Integer. Thanks.

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Re: [elm-discuss] Some questions about types.

[Janis Voigtländer]

http://package.elm-lang.org/packages/javcasas/elm-integer/latest
​

2016-09-20 15:08 GMT+02:00 Joey Eremondi :

> Both int and float end up as a JS number at the end of the day, so
> definitely bounded. Defer to the JS spec?
>
> Not sure about bignum, there's definitely not language support, but there
> might be a library doing it somewhere, and if not, someone should write
> one!
>
> On Sep 20, 2016 10:03 PM, "'Rupert Smith' via Elm Discuss" <
> elm-discuss@googlegroups.com> wrote:
>
>> Is Int unbounded? I mean is it a 'big integer' implementation as per ML,
>> or is it 64-bit or soe other limit?
>>
>> What is the precision of a Float? Is it the same as 64-bit IEEE 754?
>>
>> Is there a 'big decimal' representation?
>>
>> The docs around the basics of syntax don't really cover this:
>> http://elm-lang.org/docs/syntax#type-annotations
>>
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Re: [elm-discuss] Some questions about types.

[Joey Eremondi]

Both int and float end up as a JS number at the end of the day, so
definitely bounded. Defer to the JS spec?

Not sure about bignum, there's definitely not language support, but there
might be a library doing it somewhere, and if not, someone should write
one!

On Sep 20, 2016 10:03 PM, "'Rupert Smith' via Elm Discuss" <
elm-discuss@googlegroups.com> wrote:

> Is Int unbounded? I mean is it a 'big integer' implementation as per ML,
> or is it 64-bit or soe other limit?
>
> What is the precision of a Float? Is it the same as 64-bit IEEE 754?
>
> Is there a 'big decimal' representation?
>
> The docs around the basics of syntax don't really cover this:
> http://elm-lang.org/docs/syntax#type-annotations
>
> --
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[elm-discuss] Some questions about types.

['Rupert Smith' via Elm Discuss]

Is Int unbounded? I mean is it a 'big integer' implementation as per ML, or 
is it 64-bit or soe other limit?

What is the precision of a Float? Is it the same as 64-bit IEEE 754?

Is there a 'big decimal' representation?

The docs around the basics of syntax don't really cover this: 
http://elm-lang.org/docs/syntax#type-annotations

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