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Duplicate definition of 'new'
f#

Hello F#'ers!

I'm trying to define a new type ('Date') with two constructors, thus:

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#light
open System
type Date =
  val i : int64 ;
  new(j : DateTime) as this = new Date(j.Ticks)
  new(j: int64) as this = {i=j}

Am I doing something terribly silly? The second overload of 'new' has the error "Duplicate definition of value Date.new.1". I have other types with constructors overloaded in a similar manner, with no problems. What gives?

Thanks!

.

This is because in F# you cannot overload a method with the same number of arguments with specifying an 'OverloadID' attribute. This doesn't have any real purpose other than helping the compiler out and may be removed in future releases of the language. 

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#light
open System
type Date =
  val i : int64 ;
  [<OverloadID("1")>]
  new(j : DateTime) as this = new Date(j.Ticks)
  [<OverloadID("2")>]
  new(j: int64) as this = {i=j}
By on 1/28/2008 4:12 PM ()

That's the ticket, thanks. Irritating, because I read that in the book.

Cheers,
Sam

By on 1/29/2008 5:12 AM ()

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