infix operator <<= { associativity right precedence 90 assignment } Declarations func <<=(inout: Int, rhs: Int) Declaration func <<=(inout lhs: Int, rhs: Int) func <<=(inout: Int8, rhs: Int8) Declaration func <<=(inout lhs: Int8, rhs: Int8) func <<=(inout: Int16, rhs: Int16) Declaration func <<=(inout lhs: Int16, rhs: Int16) func <<=(inout: Int32, rhs: Int32) Declaration func <<=(inout lhs: Int32, rhs: Int32) func <<=(inout: Int64, rhs: Int64) Declaration func <<=(inout lhs: Int64, rhs: Int64) func <<=(inout: UInt, rhs: UInt) Declaration func <<=(inout lhs: UInt, rhs: UInt) func <<=(inout: UInt8, rhs: UInt8) Declaration func <<=(inout lhs: UInt8, rhs: UInt8) func <<=(inout: UInt16, rhs: UInt16) Declaration func <<=(inout lhs: UInt16, rhs: UInt16) func <<=(inout: UInt32, rhs: UInt32) Declaration func <<=(inout lhs: UInt32, rhs: UInt32) func <<=(inout: UInt64, rhs: UInt64) Declaration func <<=(inout lhs: UInt64, rhs: UInt64)