What are the things need to be taken care while dynamic memory allocation?

Question

When i use malloc() or new to allocate memory,it sometimes gives run time errors, how to avoid these errors?

Maybe his Question can help you: http://stackoverflow.com/questions/240212/what-is-the-difference-between-new-delete-and-malloc-free — Jan Hohenheim, Mar 15 '16 at 10:20
When you use `malloc` to allocate memory for an object, instead of `new`, this may lead to the strange errors (object is not initialized). — Gosha U., Mar 15 '16 at 10:20

score 3 · Accepted Answer · answered Mar 15 '16 at 10:19

What you malloc(), you need to free().

What you new, you need to delete.

What you new [], you need to delete [].

Any other combination is undefined behaviour.

Besides, new and new [] actually construct object(s) in the allocated memory (which delete / delete[] call the destructor(s) of), while malloc() / free() don't -- they just handle memory, not objects.

That is as much as I can help you, given the (lack of) information given.

What are the things need to be taken care while dynamic memory allocation?

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