From ebc20070a2114a88cbb82ee3857de551e8b5674f Mon Sep 17 00:00:00 2001
From: Daniel Arndt <arndtd@ornl.gov>
Date: Sun, 12 Apr 2020 19:44:59 -0400
Subject: [PATCH] Hide internal functions and specializations

---
 include/deal.II/fe/fe_enriched.h          |  4 +++-
 include/deal.II/matrix_free/type_traits.h |  3 ++-
 source/base/mpi.inst.in                   |  2 ++
 source/base/quadrature.cc                 | 13 ++++++++-----
 source/base/quadrature_lib.cc             |  4 ++--
 source/numerics/histogram.cc              |  3 ++-
 6 files changed, 19 insertions(+), 10 deletions(-)

diff --git a/include/deal.II/fe/fe_enriched.h b/include/deal.II/fe/fe_enriched.h
index 0737d05002..748f42fa86 100644
--- a/include/deal.II/fe/fe_enriched.h
+++ b/include/deal.II/fe/fe_enriched.h
@@ -735,6 +735,7 @@ namespace ColorEnriched
   using predicate_function = std::function<bool(
     const typename Triangulation<dim, spacedim>::cell_iterator &)>;
 
+#ifndef DOXYGEN
   namespace internal
   {
     /**
@@ -922,7 +923,8 @@ namespace ColorEnriched
         &fe_enriched, // FE multiplied by enrichment function
       const FE_Nothing<dim, spacedim> &fe_nothing,
       hp::FECollection<dim, spacedim> &fe_collection);
-  } // namespace internal
+  }    // namespace internal
+#endif // DOXYGEN
 
 
 
diff --git a/include/deal.II/matrix_free/type_traits.h b/include/deal.II/matrix_free/type_traits.h
index 70d784d954..c9a55d25f5 100644
--- a/include/deal.II/matrix_free/type_traits.h
+++ b/include/deal.II/matrix_free/type_traits.h
@@ -28,7 +28,7 @@
 
 DEAL_II_NAMESPACE_OPEN
 
-
+#ifndef DOXYGEN
 namespace internal
 {
   //
@@ -322,6 +322,7 @@ namespace internal
 
 
 } // namespace internal
+#endif
 
 DEAL_II_NAMESPACE_CLOSE
 
diff --git a/source/base/mpi.inst.in b/source/base/mpi.inst.in
index 73572aea05..633c44b057 100644
--- a/source/base/mpi.inst.in
+++ b/source/base/mpi.inst.in
@@ -65,6 +65,7 @@ for (S : MPI_SCALARS)
                          const MPI_Comm &,
                          const ArrayView<S> &);
 
+#ifndef DOXYGEN
     // The fixed-length array (i.e., things declared like T(&values)[N])
     // versions of the functions above live in the header file mpi.h since the
     // length (N) is a compile-time constant. Those functions all call
@@ -84,6 +85,7 @@ for (S : MPI_SCALARS)
       const ArrayView<const S> &,
       const MPI_Comm &,
       const ArrayView<S> &);
+#endif
   }
 
 
diff --git a/source/base/quadrature.cc b/source/base/quadrature.cc
index 2560832e71..389f4a29c8 100644
--- a/source/base/quadrature.cc
+++ b/source/base/quadrature.cc
@@ -97,7 +97,7 @@ Quadrature<dim>::Quadrature(const Point<dim> &point)
 }
 
 
-
+#ifndef DOXYGEN
 template <>
 Quadrature<1>::Quadrature(const Point<1> &point)
   : quadrature_points(std::vector<Point<1>>(1, point))
@@ -112,6 +112,7 @@ Quadrature<0>::Quadrature(const SubQuadrature &, const Quadrature<1> &)
 {
   Assert(false, ExcImpossibleInDim(0));
 }
+#endif // DOXYGEN
 
 
 
@@ -160,7 +161,7 @@ Quadrature<dim>::Quadrature(const SubQuadrature &q1, const Quadrature<1> &q2)
 }
 
 
-
+#ifndef DOXYGEN
 template <>
 Quadrature<1>::Quadrature(const SubQuadrature &, const Quadrature<1> &q2)
   : quadrature_points(q2.size())
@@ -180,7 +181,7 @@ Quadrature<1>::Quadrature(const SubQuadrature &, const Quadrature<1> &q2)
       ++present_index;
     }
 
-#ifdef DEBUG
+#  ifdef DEBUG
   if (size() > 0)
     {
       double sum = 0;
@@ -191,7 +192,7 @@ Quadrature<1>::Quadrature(const SubQuadrature &, const Quadrature<1> &q2)
       // near that.
       Assert((sum > 0.999999) && (sum < 1.000001), ExcInternalError());
     }
-#endif
+#  endif
 }
 
 
@@ -215,6 +216,7 @@ Quadrature<1>::Quadrature(const Quadrature<0> &)
   // copy constructor in 1d...
   Assert(false, ExcImpossibleInDim(1));
 }
+#endif // DOXYGEN
 
 
 
@@ -324,7 +326,7 @@ Quadrature<dim>::get_tensor_basis() const
 }
 
 
-
+#ifndef DOXYGEN
 template <>
 std::array<Quadrature<1>, 1>
 Quadrature<1>::get_tensor_basis() const
@@ -335,6 +337,7 @@ Quadrature<1>::get_tensor_basis() const
 
   return std::array<Quadrature<1>, 1>{{*this}};
 }
+#endif
 
 
 
diff --git a/source/base/quadrature_lib.cc b/source/base/quadrature_lib.cc
index 875f519e65..680486bb08 100644
--- a/source/base/quadrature_lib.cc
+++ b/source/base/quadrature_lib.cc
@@ -136,7 +136,7 @@ namespace internal
 } // namespace internal
 
 
-
+#ifndef DOXYGEN
 template <>
 QGaussLobatto<1>::QGaussLobatto(const unsigned int n)
   : Quadrature<1>(n)
@@ -157,7 +157,7 @@ QGaussLobatto<1>::QGaussLobatto(const unsigned int n)
       this->weights[i]              = 0.5 * w[i];
     }
 }
-
+#endif
 
 
 template <>
diff --git a/source/numerics/histogram.cc b/source/numerics/histogram.cc
index 4ee42cb262..ffe1696993 100644
--- a/source/numerics/histogram.cc
+++ b/source/numerics/histogram.cc
@@ -308,7 +308,7 @@ Histogram::memory_consumption() const
 }
 
 
-
+#ifndef DOXYGEN
 // explicit instantiations for float
 template void
 Histogram::evaluate<float>(const std::vector<Vector<float>> &values,
@@ -331,5 +331,6 @@ template void
 Histogram::evaluate<double>(const Vector<double> &values,
                             const unsigned int    n_intervals,
                             const IntervalSpacing interval_spacing);
+#endif
 
 DEAL_II_NAMESPACE_CLOSE
-- 
2.39.5