Bill Abt
92 lines
2.5 KiB
Swift
92 lines
2.5 KiB
Swift
//
|
|
// LinuxMain.swift
|
|
// BlueSocket
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
//
|
|
|
|
import XCTest
|
|
import Glibc
|
|
@testable import SocketTests
|
|
|
|
// http://stackoverflow.com/questions/24026510/how-do-i-shuffle-an-array-in-swift
|
|
|
|
#if swift(>=4.1)
|
|
|
|
extension MutableCollection {
|
|
mutating func shuffle() {
|
|
let c = count
|
|
guard c > 1 else { return }
|
|
|
|
srand(UInt32(time(nil)))
|
|
for (firstUnshuffled, unshuffledCount) in zip(indices, stride(from: c, to: 1, by: -1)) {
|
|
let d: Int = numericCast(random() % numericCast(unshuffledCount))
|
|
guard d != 0 else { continue }
|
|
let i = index(firstUnshuffled, offsetBy: d)
|
|
swapAt(firstUnshuffled, i)
|
|
}
|
|
}
|
|
}
|
|
|
|
#else
|
|
|
|
#if swift(>=4)
|
|
|
|
extension MutableCollection {
|
|
mutating func shuffle() {
|
|
let c = count
|
|
guard c > 1 else { return }
|
|
|
|
srand(UInt32(time(nil)))
|
|
for (firstUnshuffled, unshuffledCount) in zip(indices, stride(from: c, to: 1, by: -1)) {
|
|
let d: IndexDistance = numericCast(random() % numericCast(unshuffledCount))
|
|
guard d != 0 else { continue }
|
|
let i = index(firstUnshuffled, offsetBy: d)
|
|
swapAt(firstUnshuffled, i)
|
|
}
|
|
}
|
|
}
|
|
|
|
#else
|
|
|
|
extension MutableCollection where Indices.Iterator.Element == Index {
|
|
mutating func shuffle() {
|
|
let c = count
|
|
guard c > 1 else { return }
|
|
|
|
srand(UInt32(time(nil)))
|
|
for (firstUnshuffled, unshuffledCount) in zip(indices, stride(from: c, to: 1, by: -1)) {
|
|
let d: IndexDistance = numericCast(random() % numericCast(unshuffledCount))
|
|
guard d != 0 else { continue }
|
|
let i = index(firstUnshuffled, offsetBy: d)
|
|
swap(&self[firstUnshuffled], &self[i])
|
|
}
|
|
}
|
|
}
|
|
|
|
#endif
|
|
|
|
#endif
|
|
|
|
extension Sequence {
|
|
func shuffled() -> [Iterator.Element] {
|
|
var result = Array(self)
|
|
result.shuffle()
|
|
return result
|
|
}
|
|
}
|
|
|
|
XCTMain([
|
|
testCase(SocketTests.allTests.shuffled())
|
|
])
|