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Difference between null pointer and dangling pointer?
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Answer Posted / ravi
Both are very different.
NULL macro is
#define NULL 0
it means the macro NULL will be replaced by 0 while
preprocessing
But the NULL pointer means it points to nowhere i.e. contains 0.
It contains 0 means it may be dangerous to use such pointer
without assigning proper address to it otherwise NULL
pointer may try to access reset address may cause the
program to crash.
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