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unsigned int *ptr = (unsigned int *) 0xcfcfcfcf;

Exceptions

INT11-EX1: A null pointer can be converted to an integer; it takes on the value 0. Likewise, a 0 integer can be converted to a pointer; it becomes the null pointer.INT11-EX2: Any valid pointer to void can be converted to intptr_t or uintptr_t and back with no change in value. (This includes the underlying types if intptr_t and uintptr_t are typedefs, and any typedefs that denote the same types as intptr_t and uintptr_t.)

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