Andrea

```    
//...


  private val nThreads = Runtime.getRuntime.availableProcessors * 2
  private val executorService = Executors.newFixedThreadPool(nThreads)
  implicit val executionContext: ExecutionContextExecutorService = ExecutionContext.fromExecutorService(executorService)

  implicit val cs: ContextShift[IO] = IO.contextShift(ec)
  implicit val timer: Timer[IO] = IO.timer(ec)

Andrea

Keybase proof

I hereby claim:

• I am andrea on github.
• I am roundcrisis (https://keybase.io/roundcrisis) on keybase.
• I have a public key ASAUbUQd7hfqrEnV7duKXBfF0BQxpPdiASYGg75wa8qPCgo

To claim this, I am signing this object:

Andrea

Templates

• Scala Cats sbt new underscoreio/cats-seed.g8
• http4s sbt new http4s/http4s.g8

Andrea

Links

• Scala collections performance update A post explaining the changes comming to the collections on scala 2.13 in more depth, explaining how some of this changes improve the performance, view based design and more.

Listen / Watch

• Design Principles From Functional Programming with Runar Bjarnason In this interview with guest host Adam Bell, Runar explains how writing in a functional style involves limiting side effects, avoiding exceptions and using higher order abstractions

Andrea

type Var = string
  
type Term = 
  | Number of int
  | Pair of (Term * Term) 
  | Variable of Var 

type Subs = (Var * Term ) list
let emptySubs : Subs = [] 

Andrea

open System

type Result =
  | IsPanagram
  | NotPanagram

let (|RightSize|) (s:string) = s.Length > 1 && s.Length < 1000 


let isPanagram (s: string) =

Andrea

let isPrime x =
    match x with
    | 2 | 3 -> true
    | x when x % 2 = 0 -> false
    | _ ->
        let rec superPrimeCheck i =
            match i with
            | i when x % i = 0 -> false
            | i when x < i*i -> true
            | _ -> superPrimeCheck (i + 2)

Andrea

23/10/2015 MADRID PUERTA DE ATOCHA - CADIZ. Departures at 8:30 and arrives at 12:38 hours.

23/10/2015 MADRID PUERTA DE ATOCHA - CADIZ. Departures at 13:30 and arrives at 17:40 hours.

23/10/2015 MADRID PUERTA DE ATOCHA - CADIZ. Departures at 16:15 and arrives at 20:30 hours.

23/10/2015 MADRID PUERTA DE ATOCHA - CADIZ. Departures at 18:35 and arrives at 22:39 hours.

Andrea

Making your programming conference more diverse

• Ensure you have a code of conduct (available in the conference website) all staff for the conference must know and understand how to deal with queries regarding any form of harrasment during the conference.
• Do a Call for presentations
• In the call for presentations, provide information for potential speakers about financial support. Commercial conferences at minimum should aim to provide roundtrip travel and accommodations for the entire conference. If it's a non-profit conference with a smaller budget, inquire with speakers to find out their needs for financial assistance expenses and then find sponsors that can cover them.
• Get a diverse line up ( start inviting early, people who speak are generally booked up many months in advance, particularly in Europe)
• Scholarship for people who can't afford to attend, this means at a minimum you set aside a few tickets for people who want to come but can't afford it and even better try to subsidise trav

Andrea

 Starting: D:\TeamCity9\buildAgent\temp\agentTmp\custom_script3388580896349143851.cmd
[2015-03-20 19:30:42,066] out - in directory: D:\TeamCity9\buildAgent\work\5b9612e40cf3fd7d\BuildSteam
[2015-03-20 19:30:42,076] err - D:\TeamCity9\buildAgent\temp\agentTmp\custom_script3388580896349143851.cmd
[2015-03-20 19:30:45,643] out - 
[2015-03-20 19:30:45,650] out - Unhandled Exception: System.AccessViolationException: Attempted to read or write protected memory. This is often an indication that other memory is corrupt.
[2015-03-20 19:30:45,650] out -    at OpenTK.Graphics.OpenGL.GL.CreateProgram()
[2015-03-20 19:30:45,650] out -    at Duality.Resources.ShaderProgram.AttachShaders(ContentRef`1 v, ContentRef`1 f, ContentRef`1 g) in d:\TeamCity9\buildAgent\work\df69930dfe788c6f\Duality\Resources\ShaderProgram.cs:line 208
[2015-03-20 19:30:45,650] out -    at Duality.Resources.ShaderProgram..ctor(ContentRef`1 v, ContentRef`1 f) in d:\TeamCity9\buildAgent\work\df69930dfe788c6f\Duality\Resources\ShaderProgram.cs:line 188