From: David Wells <drwells@email.unc.edu>
Date: Wed, 24 Aug 2022 20:21:55 +0000 (-0400)
Subject: Forward declare ParameterHandler.
X-Git-Tag: v9.5.0-rc1~979^2~2
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e07beb1000a4d1375eeda9745baab4d2262936f3;p=dealii.git

Forward declare ParameterHandler.
---

diff --git a/examples/step-34/step-34.cc b/examples/step-34/step-34.cc
index 4332ff5c4b..9f14326848 100644
--- a/examples/step-34/step-34.cc
+++ b/examples/step-34/step-34.cc
@@ -27,6 +27,7 @@
 #include <deal.II/base/convergence_table.h>
 #include <deal.II/base/quadrature_lib.h>
 #include <deal.II/base/quadrature_selector.h>
+#include <deal.II/base/parameter_handler.h>
 #include <deal.II/base/parsed_function.h>
 #include <deal.II/base/utilities.h>
 
diff --git a/include/deal.II/base/parsed_convergence_table.h b/include/deal.II/base/parsed_convergence_table.h
index c79805758b..3147e596eb 100644
--- a/include/deal.II/base/parsed_convergence_table.h
+++ b/include/deal.II/base/parsed_convergence_table.h
@@ -21,7 +21,6 @@
 #include <deal.II/base/convergence_table.h>
 #include <deal.II/base/function.h>
 #include <deal.II/base/function_parser.h>
-#include <deal.II/base/parameter_handler.h>
 #include <deal.II/base/quadrature_lib.h>
 
 #include <deal.II/dofs/dof_handler.h>
@@ -36,6 +35,10 @@
 
 DEAL_II_NAMESPACE_OPEN
 
+#ifndef DOXYGEN
+class ParameterHandler;
+#endif
+
 /**
  * @brief The ParsedConvergenceTable class
  *
diff --git a/include/deal.II/base/parsed_function.h b/include/deal.II/base/parsed_function.h
index 092aa2650b..8df356c1dd 100644
--- a/include/deal.II/base/parsed_function.h
+++ b/include/deal.II/base/parsed_function.h
@@ -21,10 +21,13 @@
 
 #include <deal.II/base/auto_derivative_function.h>
 #include <deal.II/base/function_parser.h>
-#include <deal.II/base/parameter_handler.h>
 
 DEAL_II_NAMESPACE_OPEN
 
+#ifndef DOXYGEN
+class ParameterHandler;
+#endif
+
 namespace Functions
 {
   /**
diff --git a/include/deal.II/gmsh/utilities.h b/include/deal.II/gmsh/utilities.h
index 466bf0ff3b..40519c97fd 100644
--- a/include/deal.II/gmsh/utilities.h
+++ b/include/deal.II/gmsh/utilities.h
@@ -30,12 +30,14 @@
 #    include <TopoDS_Vertex.hxx>
 #  endif
 
-#  include <deal.II/base/parameter_handler.h>
-
 #  include <deal.II/grid/tria.h>
 
 DEAL_II_NAMESPACE_OPEN
 
+#  ifndef DOXYGEN
+class ParameterHandler;
+#  endif
+
 /**
  * A collection of %Gmsh related utilities and classes.
  */
diff --git a/include/deal.II/grid/grid_generator.h b/include/deal.II/grid/grid_generator.h
index 59bc5a25d9..0647536143 100644
--- a/include/deal.II/grid/grid_generator.h
+++ b/include/deal.II/grid/grid_generator.h
@@ -21,7 +21,6 @@
 
 #include <deal.II/base/exceptions.h>
 #include <deal.II/base/function.h>
-#include <deal.II/base/parameter_handler.h>
 #include <deal.II/base/point.h>
 #include <deal.II/base/table.h>
 
@@ -35,6 +34,10 @@
 
 DEAL_II_NAMESPACE_OPEN
 
+#ifndef DOXYGEN
+class ParameterHandler;
+#endif
+
 /**
  * This namespace provides a collection of functions for generating
  * triangulations for some basic geometries.
diff --git a/include/deal.II/numerics/dof_output_operator.h b/include/deal.II/numerics/dof_output_operator.h
index 152afd7f75..6293fe7f01 100644
--- a/include/deal.II/numerics/dof_output_operator.h
+++ b/include/deal.II/numerics/dof_output_operator.h
@@ -23,7 +23,6 @@
 #include <deal.II/algorithms/operator.h>
 
 #include <deal.II/base/event.h>
-#include <deal.II/base/parameter_handler.h>
 
 #include <deal.II/dofs/dof_handler.h>
 
@@ -33,6 +32,10 @@
 
 DEAL_II_NAMESPACE_OPEN
 
+#ifndef DOXYGEN
+class ParameterHandler;
+#endif
+
 namespace Algorithms
 {
   /**
diff --git a/include/deal.II/numerics/dof_output_operator.templates.h b/include/deal.II/numerics/dof_output_operator.templates.h
index f41bce7152..53c2daf4ec 100644
--- a/include/deal.II/numerics/dof_output_operator.templates.h
+++ b/include/deal.II/numerics/dof_output_operator.templates.h
@@ -19,6 +19,8 @@
 
 #include <deal.II/base/config.h>
 
+#include <deal.II/base/parameter_handler.h>
+
 #include <deal.II/numerics/dof_output_operator.h>
 
 DEAL_II_NAMESPACE_OPEN
diff --git a/source/algorithms/operator.cc b/source/algorithms/operator.cc
index 056556e1d1..bfff74799b 100644
--- a/source/algorithms/operator.cc
+++ b/source/algorithms/operator.cc
@@ -19,7 +19,6 @@
 #include <deal.II/algorithms/theta_timestepping.templates.h>
 
 #include <deal.II/base/logstream.h>
-#include <deal.II/base/parameter_handler.h>
 
 #include <deal.II/lac/block_vector.h>
 #include <deal.II/lac/la_parallel_block_vector.h>
diff --git a/source/base/parsed_function.cc b/source/base/parsed_function.cc
index c751c702b2..e5692f6c4e 100644
--- a/source/base/parsed_function.cc
+++ b/source/base/parsed_function.cc
@@ -13,11 +13,10 @@
 //
 // ---------------------------------------------------------------------
 
+#include <deal.II/base/parameter_handler.h>
 #include <deal.II/base/parsed_function.h>
 #include <deal.II/base/utilities.h>
 
-#include <cstdio>
-
 DEAL_II_NAMESPACE_OPEN
 
 namespace Functions
diff --git a/source/gmsh/utilities.cc b/source/gmsh/utilities.cc
index 7609abfcf0..fedc13e86d 100644
--- a/source/gmsh/utilities.cc
+++ b/source/gmsh/utilities.cc
@@ -13,6 +13,8 @@
 //
 // ---------------------------------------------------------------------
 
+#include <deal.II/base/parameter_handler.h>
+
 #include <deal.II/gmsh/utilities.h>
 
 #include <deal.II/grid/grid_in.h>
diff --git a/source/grid/grid_generator.cc b/source/grid/grid_generator.cc
index ac3307101b..bcd356c50b 100644
--- a/source/grid/grid_generator.cc
+++ b/source/grid/grid_generator.cc
@@ -14,6 +14,7 @@
 // ---------------------------------------------------------------------
 
 #include <deal.II/base/ndarray.h>
+#include <deal.II/base/parameter_handler.h>
 
 #include <deal.II/distributed/fully_distributed_tria.h>
 #include <deal.II/distributed/shared_tria.h>
diff --git a/tests/base/parsed_convergence_table_01.cc b/tests/base/parsed_convergence_table_01.cc
index a26cf331b6..18ed5d8ac3 100644
--- a/tests/base/parsed_convergence_table_01.cc
+++ b/tests/base/parsed_convergence_table_01.cc
@@ -16,6 +16,7 @@
 // Test the functionality of the ParsedConvergenceTable class
 
 #include <deal.II/base/function_lib.h>
+#include <deal.II/base/parameter_handler.h>
 #include <deal.II/base/parsed_convergence_table.h>
 
 #include <deal.II/dofs/dof_handler.h>
diff --git a/tests/base/parsed_convergence_table_02.cc b/tests/base/parsed_convergence_table_02.cc
index e0d8c61e17..467c2dff47 100644
--- a/tests/base/parsed_convergence_table_02.cc
+++ b/tests/base/parsed_convergence_table_02.cc
@@ -15,6 +15,7 @@
 
 // Output standard parameters for ParsedConvergenceTable class
 
+#include <deal.II/base/parameter_handler.h>
 #include <deal.II/base/parsed_convergence_table.h>
 
 #include "../tests.h"
diff --git a/tests/base/parsed_convergence_table_03.cc b/tests/base/parsed_convergence_table_03.cc
index 9bbecf63e3..73db77a786 100644
--- a/tests/base/parsed_convergence_table_03.cc
+++ b/tests/base/parsed_convergence_table_03.cc
@@ -17,6 +17,7 @@
 // non scalar functions.
 
 #include <deal.II/base/function_lib.h>
+#include <deal.II/base/parameter_handler.h>
 #include <deal.II/base/parsed_convergence_table.h>
 
 #include <deal.II/dofs/dof_handler.h>
diff --git a/tests/base/parsed_convergence_table_04.cc b/tests/base/parsed_convergence_table_04.cc
index ddf690b162..2404d5c9d8 100644
--- a/tests/base/parsed_convergence_table_04.cc
+++ b/tests/base/parsed_convergence_table_04.cc
@@ -17,6 +17,7 @@
 // vector functions, single component
 
 #include <deal.II/base/function_lib.h>
+#include <deal.II/base/parameter_handler.h>
 #include <deal.II/base/parsed_convergence_table.h>
 
 #include <deal.II/dofs/dof_handler.h>
diff --git a/tests/base/parsed_convergence_table_05.cc b/tests/base/parsed_convergence_table_05.cc
index d356111b06..f5acdedd2f 100644
--- a/tests/base/parsed_convergence_table_05.cc
+++ b/tests/base/parsed_convergence_table_05.cc
@@ -17,6 +17,7 @@
 // vector function + scalar function
 
 #include <deal.II/base/function_lib.h>
+#include <deal.II/base/parameter_handler.h>
 #include <deal.II/base/parsed_convergence_table.h>
 
 #include <deal.II/dofs/dof_handler.h>
diff --git a/tests/base/parsed_convergence_table_06.cc b/tests/base/parsed_convergence_table_06.cc
index b4af189c1f..3d70783fcd 100644
--- a/tests/base/parsed_convergence_table_06.cc
+++ b/tests/base/parsed_convergence_table_06.cc
@@ -17,6 +17,7 @@
 // vector function + scalar function, ignore second component
 
 #include <deal.II/base/function_lib.h>
+#include <deal.II/base/parameter_handler.h>
 #include <deal.II/base/parsed_convergence_table.h>
 
 #include <deal.II/dofs/dof_handler.h>
diff --git a/tests/base/parsed_convergence_table_07.cc b/tests/base/parsed_convergence_table_07.cc
index a8194fc145..16de03a4c9 100644
--- a/tests/base/parsed_convergence_table_07.cc
+++ b/tests/base/parsed_convergence_table_07.cc
@@ -17,6 +17,7 @@
 // custom error computations
 
 #include <deal.II/base/function_lib.h>
+#include <deal.II/base/parameter_handler.h>
 #include <deal.II/base/parsed_convergence_table.h>
 
 #include <deal.II/dofs/dof_handler.h>
diff --git a/tests/base/parsed_convergence_table_08.cc b/tests/base/parsed_convergence_table_08.cc
index 2d0be867b6..e0cc8becab 100644
--- a/tests/base/parsed_convergence_table_08.cc
+++ b/tests/base/parsed_convergence_table_08.cc
@@ -17,6 +17,7 @@
 // custom error computations, with no extra columns.
 
 #include <deal.II/base/function_lib.h>
+#include <deal.II/base/parameter_handler.h>
 #include <deal.II/base/parsed_convergence_table.h>
 
 #include <deal.II/dofs/dof_handler.h>
diff --git a/tests/base/parsed_convergence_table_09.cc b/tests/base/parsed_convergence_table_09.cc
index db0c0aad23..338773425a 100644
--- a/tests/base/parsed_convergence_table_09.cc
+++ b/tests/base/parsed_convergence_table_09.cc
@@ -17,6 +17,7 @@
 // custom error computations, time rates
 
 #include <deal.II/base/function_lib.h>
+#include <deal.II/base/parameter_handler.h>
 #include <deal.II/base/parsed_convergence_table.h>
 
 #include <deal.II/dofs/dof_handler.h>
diff --git a/tests/base/parsed_convergence_table_10.cc b/tests/base/parsed_convergence_table_10.cc
index d217a138df..3b3ae0b895 100644
--- a/tests/base/parsed_convergence_table_10.cc
+++ b/tests/base/parsed_convergence_table_10.cc
@@ -17,6 +17,7 @@
 // custom error computations, writing to files
 
 #include <deal.II/base/function_lib.h>
+#include <deal.II/base/parameter_handler.h>
 #include <deal.II/base/parsed_convergence_table.h>
 
 #include <deal.II/dofs/dof_handler.h>
diff --git a/tests/base/parsed_convergence_table_11.cc b/tests/base/parsed_convergence_table_11.cc
index 1ce9182ddd..99d5942ea6 100644
--- a/tests/base/parsed_convergence_table_11.cc
+++ b/tests/base/parsed_convergence_table_11.cc
@@ -17,6 +17,7 @@
 // between finite element solutions
 
 #include <deal.II/base/function_lib.h>
+#include <deal.II/base/parameter_handler.h>
 #include <deal.II/base/parsed_convergence_table.h>
 
 #include <deal.II/dofs/dof_handler.h>