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Numeric Literals
f#

Hi,

I been trying to get Numeric Literals working on the May CTP, but don't seem to have the right syntax. Here's my best effort (based on FSharp.Core/math/z.fs)

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[<Measure>] type year

[<AutoOpen>]
module NumericLiterals =
    [<AutoOpen>]
    module NumericLiteralY =
        let FromInt32(x:int)    =  float x * 1.<year>
        let FromDouble(x:float) = x * 1.<year>

let a = 1Y // Error: This is not a valid numeric literal. Sample formats include 4, 0x4, ...

Has anyone been using these literals?

regards,

Danny

.

This is not a feature I've ever tried to use, and it's apparently not in the spec yet. :) Rooting through the compiler source, it seems like only the suffixes in the set "INZQRG" are supported. And the code below seems to work (using 'G').

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[<Measure>] type year
[<AutoOpen>]
module NumericLiterals =
    [<AutoOpen>]
    module NumericLiteralG =
        let FromOne()           =  1.<year>
        let FromInt32(x:int)    =  float x * 1.<year>
        let FromDouble(x:float) = x * 1.<year>
let a = 1G 
let b = 2G
By on 6/13/2009 10:13 AM ()

Rooting through the compiler source, it seems like only the suffixes in the set "INZQRG" are supported.  

Ha :) And that's an acronym for...? 

By on 6/14/2009 1:12 AM ()

Is the plan to allow an extended set of suffixes in the future?

By on 6/16/2009 4:19 AM ()

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