Re: when can realloc fail?

Nelu wrote:

.... snip ...

In C99 it only returns NULL when it fails. If it returns non-null
and the size is 0 then it will return an address to a block of
memory of zero size. The address *will not be NULL* and you will
have to free it using free().

Not so. C99 specifically allows a successfull realloc(p, 0) or
malloc(0) to return NULL. I consider systems that use this to be
flawed, yet portable code has to allow for it.

--
Chuck F (cbfalconer at maineline dot net)
Available for consulting/temporary embedded and systems.
<http://cbfalconer.home.att.net>


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