Is it safe to realloc memory allocated with new?

Question

From what is written here, new allocates in free store while malloc uses heap and the two terms often mean the same thing.

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Answer 1

Yes - if new actually called malloc in the first place (for example, this is how VC++ new works).

No otherwise. do note that once you decide to reallocate the memory (because new called malloc), your code is compiler specific and not portable between compilers anymore.

(I know this answer may upset many developers, but I answer depends on real facts, not just idiomaticy).