Programming in Objective-C, Sixth Edition

Type int

An integer constant consists of a sequence of one or more digits. A minus sign preceding the sequence indicates that the value is negative. The values 158, –10, and 0 are all valid examples of integer constants. No embedded spaces are permitted between the digits, and commas can’t be used. (So, the value 12,000 is not a valid integer constant and must be written as 12000.)

Every value, whether it’s a character, an integer, or a floating-point number, has a range of values associated with it. This range has to do with the amount of storage allocated to store a particular type of data. In general, that amount is not defined in the language; it typically depends on the computer you’re running on and is therefore called implementation or ...