Re: malloc realloc and pointers

"K. Jennings" wrote:

.... snip ...

3) realloc() returns NULL, in which case ptr is pointing to the
unchanged memory region as before.

What happens when ptr is not one returned by a previous
invocation to malloc(), calloc() or realloc()?

Then you know that realloc moved the storage. It doesn't affect
the data held by the pointed to object.

--
Chuck F (cbfalconer at maineline dot net)
<http://cbfalconer.home.att.net>
Try the download section.



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