On Tue, Aug 14, 2012 at 4:40 PM, Jed Brown <jedbrown@mcs.anl.gov> wrote:

On Tue, Aug 14, 2012 at 3:35 PM, Matthew Knepley <knepley@gmail.com> wrote:

I guess I do not understand. What is the context set API? Why can't you pass NULL?

You can, but the setter routines interpret NULL as "ignore", i.e.

if (func) ctx->func = func;

Does this make sense to anyone? Can we remove that if?

Matt

--
What most experimenters take for granted before they begin their experiments is infinitely more interesting than any results to which their experiments lead.
-- Norbert Wiener