iOS:二元运算符 '|=' 不能应用于两个 'Bool' 操作数

Question

我在对两个 bool 值执行按位运算时出错。错误:“二元运算符‘|=’不能应用于两个‘ bool ’操作数”

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

请任何人帮我解决这个问题...

Answer 1

您可以通过重载运算符来自己定义它:

swift 2:

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

swift 3:

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