Programming In C, Rules for specifying a variable name in C Language?
Topic: Programming In C Question 1: What are the rules for specifying a variable name in C Language? Ans: The following are the rules for specifying variable names in c language. A variable name begins with a letter or underscore (_) and may consists of letters, underscores and or digits . The underscore may be used to improve readability of the variable name. For example over_time. There is no restriction in the length of the variable name. However only 31 characters of a variable are significant. Both upper case and lower letters are allowed in a variable name. e.g: AVG, avg, etc Special characters cannot be used as variable name. e.g: @, ? Reserved words of c language such as int , case, etc cannot be used as variable names. There must be no embedded blank in the name of variable. For example ma ss is not correct.