[Patch, Fortran] PR 40877: memory leaks with gfc_charlen

[Jerry DeLisle]

On 08/06/2009 04:11 AM, Janus Weil wrote:
> Hi all,
>
> this patch fixes a number of memory leaks with gfc_charlen. All
> gfc_charlen structures are normally put into a linked list in their
> respective namespace (ns->cl_list). When the namespace is cleaned up
> in the end, this list of gfc_charlen's is also freed. Any gfc_charlen
> which is not inside such a list will be a memory leak, since it is
> never deallocated.
>
> When working on PR 40822 (where I introduced a function
> 'gfc_new_charlen' which makes sure the charlen is correctly put into a
> ns->cl_list), I noticed a couple of places where a gfc_charlen is not
> put into such a list. I checked these, and concluded that indeed all
> of them seem to be memory leaks. This patch plugs these leaks and adds
> a new argument to 'gfc_new_charlen', so that this function can also be
> used to create a new gfc_charlen as a copy of an existing one.
>
> Regtested on x86_64-unknown-linux-gnu. Ok for trunk?
>
OK, thanks for patch.

Jerry