Stack Implementation in swift


public struct Stack{
private var array:[T]
public var maxSize:Int?

public init(){
array = []
}

 

//MARK: isEmpty
public var isEmpty:Bool{
return array.count == 0
}

//MARK: count
public var count:Int{
return array.count
}
//MARK: PUSH
public mutating func push(element:T){
if (maxSize != nil){
if array.count >= maxSize{
print(“OverFlow”)
}
}
array.append(element)
}
//MARK: POP
public mutating func pop()->T?{
if isEmpty{
return nil
}
return array.removeLast()
}

//MARK: get Peek element
public func peek()->T?{
return array.last
}
}

//use this stack
var myStack = Stack()
myStack.push(10)
myStack.pop()


 

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