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Initialization of variables • A variable may also be initialized in its declaration • Syntax: type name = expression; • Examples: char esc = '\\'; int i = 7*8; int limit = MAXSIZE+1; float eps = 1.0e-5; char msg[] = "warning: "; • For not automatic variables: the initialization is done once, ”before the program starts” - the initializer must be a constant expression • An explicitly initialized automatic variable is initialized each time the function or block it is in is entered - the initializer may be any expression • External and static variables are initialized to zero • Non-initialized automatic variables have undefined (garbage) values • The qualifier const can be applied to the declaration of any variable to specify that its value will not be changed: const double pi = 3.1415926535897932; • For an array, the const qualifier means that the elements will not be changed
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