free() and delete

[Michael]

Hi,

free() and delete are both used to release ptr memory. Any difference.
When shall I use which?

Thanks in advance,
Michael

 

[Noah Roberts]

Hi,

free() and delete are both used to release ptr memory. Any difference.
When shall I use which?

Use new/delete unless you have a really good reason to use
malloc/realloc/free.

Use delete when you used new, use free when you used malloc.

 

[Noah Roberts]

Hi,

free() and delete are both used to release ptr memory. Any difference.
When shall I use which?

Oh, and delete calls a destructor, if any, and free does not.

 

[Thomas J. Gritzan]

Hi,

free() and delete are both used to release ptr memory. Any difference.
When shall I use which?

Simple rules:

- Memory allocated with malloc() has to be freed with free(),
- Objects that are new'ed have to be delete'd,
- Arrays of Objects, created with new[], must be destroyed with delete[].

Some guidelines:

- In C++, don't ever use malloc() or free(),
- Instead of new[] you are safer using a container (std::vector<> for
example)