From ac7820bdd2fa5dbfe4b0b099f2fd066da9b9de8f Mon Sep 17 00:00:00 2001
From: Igor Kislyuk <igorkislyuk@icloud.com>
Date: Thu, 19 Oct 2017 01:24:49 +0300
Subject: [PATCH] Remove array extensions

---
 CHANGELOG.md                                  |  1 +
 .../Extensions/Array/Array+Extensions.swift   | 46 +------------------
 2 files changed, 3 insertions(+), 44 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index e22137dd..3d0f1a62 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,7 @@
 - **Remove**: String+Extensions
 - **Remove**: UICollectionView+CellRegistration
 - **Remove**: UIStoryboard+InstantiateViewController
+- **Remove**: `Array` extensions with `Set Algebra`
 
 ## 0.5.18
 - **Fix**: EmptyCell first appearance setup fix
diff --git a/Sources/Extensions/Array/Array+Extensions.swift b/Sources/Extensions/Array/Array+Extensions.swift
index edd47dfc..1d3d58e9 100644
--- a/Sources/Extensions/Array/Array+Extensions.swift
+++ b/Sources/Extensions/Array/Array+Extensions.swift
@@ -20,52 +20,10 @@
 //  THE SOFTWARE.
 //
 
-public extension Array where Element: Equatable {
-
-    /// Union array with another arrays, without element duplication
-    func union(values: [Array.Element]...) -> Array {
-        var result = self
-
-        for array in values {
-            for value in array {
-                if !result.contains(value) {
-                    result.append(value)
-                }
-            }
-        }
-
-        return result
-    }
-
-    /// Find common elements among arrays
-    func intersection(values: [Array.Element]...) -> Array {
-        var result = self
-        var intersection = Array()
-
-        for (index, value) in values.enumerated() {
-            if index > 0 {
-                result = intersection
-                intersection = Array()
-            }
-
-            value.forEach { item in
-                if result.contains(item) && !intersection.contains(item) {
-                    intersection.append(item)
-                }
-            }
-        }
-
-        return intersection
-    }
-
-    /// Find unique elements in array compared to other arrays
-    func subtract(values: [Array.Element]...) -> Array {
-        let allValues = values.flatMap { $0 }
-        return filter { !allValues.contains($0) }
-    }
+public extension Array {
 
     // Subscript for safe access to element by index
-    subscript(safe index: Int) -> Element? {
+    subscript(safe index: Index) -> Element? {
         return index < count ? self[index] : nil
     }