numbers that can be stored in an integer constant or variable is different for each numeric type. An Int8 constant or variable can store numbers between -128 and 127, whereas a UInt8 constant or variable UInt8 can't store negative numbers, and so this will report an error 3 let tooBig: Int8 = Int8.max + 1 4 // Int8 can't store a number larger than its maximum value, 5 // and so this will also report exactly the same way as for unsigned integers, counting upwards from 0. Here’s how the bits inside an Int8 look for the number 4: The sign bit is 0 (meaning “positive”), and the seven value bits are just

numbers that can be stored in an integer constant or variable is different for each numeric type. An Int8 constant or variable can store numbers between -128 and 127, whereas a UInt8 constant or variable UInt8 cannot store negative numbers, and so this will report an error 3 let tooBig: Int8 = Int8.max + 1 4 // Int8 cannot store a number larger than its maximum value, 5 // and so this will also report exactly the same way as for unsigned integers, counting upwards from 0. Here’s how the bits inside an Int8 look for the number 4: The sign bit is 0 (meaning “positive”), and the seven value bits are just

past and that needed to interact with C or Objective-C, and you must be aware that we have them: Int8 is an integer with 8 bits Int16 is an integer with 16 bits Int32 is an integer with 32 bits