ENUM is closely related to the #define preprocessor.
It allows you to define a list of aliases which represent integer numbers. For example if you find yourself coding something like:
#define MON 1 #define TUE 2 #define WED 3You could use enum as below.
enum week { Mon=1, Tue, Wed, Thu, Fri Sat, Sun} days; or enum escapes { BELL = '\a', BACKSPACE = '\b', HTAB = '\t', RETURN = '\r', NEWLINE = '\n', VTAB = '\v' }; or enum boolean { FALSE = 0, TRUE };An advantage of enum over #define is that it has scope This means that the variable (just like any other) is only visable within the block it was declared within.
#define preprocessor.
enum and #define coding error.
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