iOS:Binary operator '|=' cannot be applied to two 'Bool' operands

Question

I got an error while performing a bitwise operation on two boolean values. Error :"Binary operator '|=' cannot be applied to two 'Bool' operands"

func checkAvailability(available:Bool) -> Bool{
    var bChanged = false
    bChanged |= available //"Binary operator '|=' cannot be applied to two 'Bool' operands"
    return bChanged  
}

Please any one help me to solve the problem...

Answer 1

You could define it yourself by overloading the operator:

Swift 2:

func |= (inout left: Bool, right: Bool) {
   left = left || right
}

Swift 3:

func |= (left: inout  Bool, right: Bool) {
   left = left || right
}

Answer 2

This is a simple expansion of Lew's answer to include the other two "missing" operators.

// A couple of operators that exist in C# and Java but are missing from Swift.

public func |= (leftSide : inout Bool, rightSide : Bool) {
   leftSide = leftSide || rightSide
}

public func &= (leftSide : inout Bool, rightSide : Bool) {
   leftSide = leftSide && rightSide
}

public func ^= (leftSide : inout Bool, rightSide : Bool) {
   leftSide = leftSide != rightSide
}