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This might be a very rudimentary question, but I'm playing around with if statements and the following example won't work with error "The compiler is unable to type-check this expression in reasonable time; try breaking up the expression into distinct sub-expressions". Does anybody know what I'm doing wrong?

let a = 4

let b = 3

let c = 10

let d = 2


if ((sqrt((a - b)^2 + (c - d)^2)) > 100) {
              print("Yes")
        }

Edit: I understood I made a few mistakes and now got it working with: 

var a = 4

var b = 3

var c = 10

var d = 2

var e = (a-b)

var f = (c-d)

var g = (e*e)

var h = (f*f)

var j = Double(g+h)

if (j.squareRoot() > 5) {
              print("Yes")
      }
Markus
  • 131
  • 5

1 Answers1

3

Use better types!

import simd

distance([4, 10] as SIMD2<Double>, [3, 2]) > 100

And if you've really got to work with those integers…

public extension SIMD where Scalar: FloatingPoint {
  init<Integer: BinaryInteger>(_ integers: Integer...) {
    self.init( integers.map(Scalar.init) )
  }
}

distance( SIMD2<Double>(a, c), .init(b, d) ) > 100