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Alex Rivera
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I know some POD variables are initialized by default to a meaningful value but others are not. (POD types include int , float , pointers, unions, arrays of POD types, structs of POD types, etc.) How does scope and storage class affect initialization of POD types? Specifically, which of the following will be initialized implicitly to a known value (e.g., 0 for integer types) (i.e., value initialization) and which are defined with an indeterminate value (i.e., default initialization): Local variables with automatic storage Static local variables Static global variables External variables Variables allocated with new POD members of a class (without explicit initialization in a constructor) I know there are existing questions relating to some of these situations, but none comprehensive (they only address specific situations).
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