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by richardwhiuk 2805 days ago
Being implementation defined is hardly well defined.
2 comments
apankrat 2805 days ago
Well, it's the return value in realloc(ptr, 0) case that is implementation-specific, but its behavior _is_ well-defined - it is expected to "deallocate the old object".

My point was that in reality the behavior varies. "Undefined" in a common tongue sense, not in the terms of the C standard.

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tom_ 2805 days ago
No... maybe? It's probably arguable, even if it's not an interesting argument.

Either way, realloc's behaviour is well-defined when the pointer is null.

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