How to break up this expression into distinct sub-expressions?

Asked Aug 14 '16 at 12:05

Active Aug 14 '16 at 12:25

Viewed 148 times

Expression was too complex to be solved in reasonable time; consider breaking up the expression into distinct sub-expressions

public func SKTTimingFunctionExtremeBackEaseInOut(t: CGFloat) -> CGFloat {
  if t < 0.5 {
    let f = 2.0 * t
    return 0.5 * (f * f - sin(f * π)) * f
  } else {
    let f = 2.0 * (1.0 - t)
    return 1.0 - 0.5 * (f * f - sin(f * π)) * f
  }
}

return 1.0 - 0.5 * (f * f - sin(f * π)) * f

This line caused the crash. It error after I update to swift 3. How would I rewrite it?

edited Aug 14 '16 at 12:25

Martin R

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asked Aug 14 '16 at 12:05

Prim

2

How did you define `π` ? – Martin R Aug 14 '16 at 12:12
Did you define `π`? [Relevant Q&A](http://stackoverflow.com/a/26324067/335858) – Sergey Kalinichenko Aug 14 '16 at 12:15
I defined π in CGFloatExtensions with let π = CGFloat(M_PI) – Prim Aug 14 '16 at 15:14
1

With that definition I cannot reproduce the problem, and your code compiles without problems. – Martin R Aug 14 '16 at 17:34
Is your platform 32 or 64-bit? CGFloat has the same width as your platform – Code Different Aug 15 '16 at 01:56

How to break up this expression into distinct sub-expressions?

0 Answers0