On 03/07/2018 01:48 AM, 'Maxi Miller' via deal.II User Group wrote:
Usually the ConditionalOStream-variable is initialized in the constructor of
the object, as for example in
|
template<intdim>
MinimalSurfaceProblem<dim>::MinimalSurfaceProblem(constchar*file_name)
:
mpi_communicator(MPI_COMM_WORLD),
triangulation(mpi_communicator,
typenameTriangulation<dim>::MeshSmoothing(Triangulation<dim>::smoothing_on_refinement
|Triangulation<dim>::smoothing_on_coarsening)),
n_components(1),
dof_handler (triangulation),
fe (FE_Q<dim>(2),n_components *dim),
pcout(std::cout,(Utilities::MPI::this_mpi_process(mpi_communicator)==0)),
{
}
|
Now I would like to do that in a function of the class, instead of the
constructor, so that I am able to write into a log file instead of using
std::cout. I tried the following methods:
> [...]
There is no immediate function that allows you to change the stream and state
of the ConditionalOStream at a later time. But you can of course create the
output log file stream as a member variable and initialize it *before* the
pcout object, and then initialize the pcout object with it.
Alternatively, make your pcout object a *pointer to* a ConditionalOStream
object and set the pointer when you have your stream object ready.
Best
W.
--
------------------------------------------------------------------------
Wolfgang Bangerth email: bange...@colostate.edu
www: http://www.math.colostate.edu/~bangerth/
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