Question on debugging memory use

[Ethan M. <merritt@u.washington.edu>]

I would like to audit the memory allocation and deallocation
for strings during a gnuplot run, to make sure there are no
memory leaks.

The existence of the routine gp_alloc(mem,"tag label") suggests that
some such facility was intended, but since there is no corresponding
routine gp_free I don't see how to use it for this purpose.  
Is there some clever way of asking for a dump of the currently
allocated memory chunks?  It would be nice to see the tag labels
as well, but I can worry about that later if indeed it proves necessary
to trace down a memory leak.

I see some code in alloc.c marked
   #ifdef CHECK_HEAP_USE
but it is not obvious to me how to use it.

-- 
Ethan A Merritt       merritt@u.washington.edu
Biomolecular Structure Center
Mailstop 357742
University of Washington, Seattle, WA 98195