Hi Edgar,
Yes, clearly something like this will work:
libmesh_example_requires_fun(bool (0),
> "TESTME",
> __FILE__,
> __LINE__);
but you then force the user to manually pass __FILE__ and __LINE__ to every
invocation of the "libmesh_error_msg_fun" function. To me this makes it not
very desirable/useful.
There is also the issue of not being able to "stream" messages into a
function the same way that is possible with macros, for example we often
write code like:
libmesh_error_msg("Invalid shape function index i = " << i);
which is very convenient. If I understand correctly, your original issue
with the macros was that you could not properly "namespace" them, e.g.
libMesh::libmesh_error_msg() does not work, but I think this is a
relatively minor price to pay for the other conveniences that using a macro
provides.
--
John
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