genner thing

test

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module thingy =

  let isSumPossible (target :int) (ints : int list)= 
    let head, tail = 
      match ints with 
      | x::xs -> x,xs
      | [] -> 0,List.empty
    let combos = 
      tail 
      |> List.map (fun i -> head,i )
      |> List.filter (fun (i,j) -> (i+j) = target)
    combos 
    |> List.length 
    |> (<>) 0

  let testRandom () =
    let rand = new System.Random()
    let amount = rand.Next(100);
    let sum = rand.Next();	
    let ints = List.init amount (fun i -> rand.Next())
    ints
    |> isSumPossible sum

val isSumPossible : target:int -> ints:int list -> bool

Full name: Script.thingy.isSumPossible

val target : int

Multiple items
val int : value:'T -> int (requires member op_Explicit)

Full name: Microsoft.FSharp.Core.Operators.int

--------------------
type int = int32

Full name: Microsoft.FSharp.Core.int

--------------------
type int<'Measure> = int

Full name: Microsoft.FSharp.Core.int<_>

val ints : int list

type 'T list = List<'T>

Full name: Microsoft.FSharp.Collections.list<_>

val head : int

val tail : int list

val x : int

val xs : int list

Multiple items
module List

from Microsoft.FSharp.Collections

--------------------
type List<'T> =
  | ( [] )
  | ( :: ) of Head: 'T * Tail: 'T list
  interface IEnumerable
  interface IEnumerable<'T>
  member Head : 'T
  member IsEmpty : bool
  member Item : index:int -> 'T with get
  member Length : int
  member Tail : 'T list
  static member Cons : head:'T * tail:'T list -> 'T list
  static member Empty : 'T list

Full name: Microsoft.FSharp.Collections.List<_>

val empty<'T> : 'T list

Full name: Microsoft.FSharp.Collections.List.empty

val combos : (int * int) list

val map : mapping:('T -> 'U) -> list:'T list -> 'U list

Full name: Microsoft.FSharp.Collections.List.map

val i : int

val filter : predicate:('T -> bool) -> list:'T list -> 'T list

Full name: Microsoft.FSharp.Collections.List.filter

val j : int

val length : list:'T list -> int

Full name: Microsoft.FSharp.Collections.List.length

val testRandom : unit -> bool

Full name: Script.thingy.testRandom

val rand : System.Random

namespace System

Multiple items
type Random =
  new : unit -> Random + 1 overload
  member Next : unit -> int + 2 overloads
  member NextBytes : buffer:byte[] -> unit
  member NextDouble : unit -> float

Full name: System.Random

--------------------
System.Random() : unit
System.Random(Seed: int) : unit

val amount : int

System.Random.Next() : int
System.Random.Next(maxValue: int) : int
System.Random.Next(minValue: int, maxValue: int) : int

val sum : int

val init : length:int -> initializer:(int -> 'T) -> 'T list

Full name: Microsoft.FSharp.Collections.List.init

Raw view Test code New version

More information

Link:	http://fssnip.net/q5
Posted:	9 years ago
Author:	chet
Tags:	meh