Is it well-defined to use a pointer pointing to one-past-malloc? – stackoverflow.com

Is it well-defined to use a pointer pointing to one-past-malloc? – stackoverflow.com

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In C, it is perfectly well to make a pointer that points to one past the last element of an array and use it in pointer arithmetics, as long as you don't dereference it: int a[5], *p = a+5, diff = ...

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