Power.swift
1.77 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
// Copyright (c) 2014–2015 Mattt Thompson (http://mattt.me)
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
import Accelerate
// MARK: Power
public func pow(_ x: [Float], y: [Float]) -> [Float] {
var results = [Float](repeating: 0.0, count: x.count)
vvpowf(&results, x, y, [Int32(x.count)])
return results
}
public func pow(_ x: [Double], y: [Double]) -> [Double] {
var results = [Double](repeating: 0.0, count: x.count)
vvpow(&results, x, y, [Int32(x.count)])
return results
}
public func pow(_ x: [Float], _ y: Float) -> [Float] {
let yVec = [Float](repeating: y, count: x.count)
return pow(yVec, y: x)
}
public func pow(_ x: [Double], _ y: Double) -> [Double] {
let yVec = [Double](repeating: y, count: x.count)
return pow(yVec, y: x)
}