From 4c7b9c7b7d85c9d41d50763bab08d251b4168d08 Mon Sep 17 00:00:00 2001
From: heister <heister@0785d39b-7218-0410-832d-ea1e28bc413d>
Date: Mon, 11 Nov 2013 18:27:45 +0000
Subject: [PATCH] tests: use deal.II constant for PI, might fix tests on cygwin

git-svn-id: https://svn.dealii.org/trunk@31629 0785d39b-7218-0410-832d-ea1e28bc413d
---
 tests/base/function_parser.cc       | 2 +-
 tests/bits/find_cell_alt_7.cc       | 2 +-
 tests/bits/parsed_function.cc       | 2 +-
 tests/fe/rt_approximation_01.cc     | 2 +-
 tests/multigrid/mg_output.cc        | 2 +-
 tests/multigrid/mg_renumbered_01.cc | 2 +-
 tests/multigrid/mg_renumbered_02.cc | 2 +-
 tests/multigrid/mg_renumbered_03.cc | 2 +-
 tests/multigrid/step-16-02.cc       | 3 ++-
 tests/multigrid/transfer_03.cc      | 2 +-
 10 files changed, 11 insertions(+), 10 deletions(-)

diff --git a/tests/base/function_parser.cc b/tests/base/function_parser.cc
index 10c49aa7d7..c82bc72bf3 100644
--- a/tests/base/function_parser.cc
+++ b/tests/base/function_parser.cc
@@ -38,7 +38,7 @@ int main ()
 
   // Define some constants that will be used by the function parser
   std::map<std::string, double> constants;
-  constants["pi"] = M_PI;
+  constants["pi"] = numbers::PI;
 
   // Define the variables that will be used inside the expressions
   std::string variables = "x,y";
diff --git a/tests/bits/find_cell_alt_7.cc b/tests/bits/find_cell_alt_7.cc
index d141bfff66..be2a769410 100644
--- a/tests/bits/find_cell_alt_7.cc
+++ b/tests/bits/find_cell_alt_7.cc
@@ -40,7 +40,7 @@ void check (Triangulation<2> &tria)
   // Test for a number of points, every ten degrees
   for (unsigned int i=0; i<200; i++)
     {
-      Point<2> p(std::sin((double)i/100.*M_PI), std::cos((double)i/100.*M_PI));
+      Point<2> p(std::sin((double)i/100.*numbers::PI), std::cos((double)i/100.*PI));
       p *= 1.-1e-8;
 
       std::pair<Triangulation<2>::active_cell_iterator, Point<2> > cell
diff --git a/tests/bits/parsed_function.cc b/tests/bits/parsed_function.cc
index 647f052f92..4d17dd742c 100644
--- a/tests/bits/parsed_function.cc
+++ b/tests/bits/parsed_function.cc
@@ -82,7 +82,7 @@ void Test()
               double delta=0.;
               for (unsigned int di=0; di<i; ++di)
                 {
-                  delta = values[j](di) - std::cos(M_PI*(i+1)*vertices[j][di])*t;
+                  delta = values[j](di) - std::cos(numbers::PI*(i+1)*vertices[j][di])*t;
                   if (std::abs(delta) > 1e-10)
                     deallog << "p(" << di << "): " << vertices[j] << ", delta: "
                             << delta << std::endl;
diff --git a/tests/fe/rt_approximation_01.cc b/tests/fe/rt_approximation_01.cc
index 8cd27d1632..04978dbc61 100644
--- a/tests/fe/rt_approximation_01.cc
+++ b/tests/fe/rt_approximation_01.cc
@@ -490,7 +490,7 @@ int main ()
     MappingQ1Eulerian<2> mapping_euler (deformation, *dof_handler_def);
 
     // Try rotating the elements
-    for (double rotat = 0; rotat < 2 * M_PI; rotat += 0.25 * M_PI)
+    for (double rotat = 0; rotat < 2 * numbers::PI; rotat += 0.25 * numbers::PI)
       {
         // Rotate element
         VectorTools::project (*dof_handler_def, hn_constraints_def,
diff --git a/tests/multigrid/mg_output.cc b/tests/multigrid/mg_output.cc
index 39c5e72e06..c82d8560e2 100644
--- a/tests/multigrid/mg_output.cc
+++ b/tests/multigrid/mg_output.cc
@@ -81,7 +81,7 @@ void refine_mesh (Triangulation<dim> &triangulation)
                                      Point<dim>(0,0) :
                                      Point<dim>(0,0,0));
           const double dist = p.distance(origin);
-          if (dist<0.25/M_PI)
+          if (dist<0.25/numbers::PI)
             {
               cell->set_refine_flag ();
               cell_refined = true;
diff --git a/tests/multigrid/mg_renumbered_01.cc b/tests/multigrid/mg_renumbered_01.cc
index d860d13c06..e906286c7b 100644
--- a/tests/multigrid/mg_renumbered_01.cc
+++ b/tests/multigrid/mg_renumbered_01.cc
@@ -439,7 +439,7 @@ void LaplaceProblem<dim>::refine_local ()
                                      Point<dim>(0,0) :
                                      Point<dim>(0,0,0));
           const double dist = p.distance(origin);
-          if (dist<0.25/M_PI)
+          if (dist<0.25/numbers::PI)
             {
               cell->set_refine_flag ();
               cell_refined = true;
diff --git a/tests/multigrid/mg_renumbered_02.cc b/tests/multigrid/mg_renumbered_02.cc
index fda0e5a06b..2a95e8ab48 100644
--- a/tests/multigrid/mg_renumbered_02.cc
+++ b/tests/multigrid/mg_renumbered_02.cc
@@ -317,7 +317,7 @@ void LaplaceProblem<dim>::refine_local ()
                                      Point<dim>(0,0) :
                                      Point<dim>(0,0,0));
           const double dist = p.distance(origin);
-          if (dist<0.25/M_PI)
+          if (dist<0.25/numbers::PI)
             {
               cell->set_refine_flag ();
               cell_refined = true;
diff --git a/tests/multigrid/mg_renumbered_03.cc b/tests/multigrid/mg_renumbered_03.cc
index 9bcb1b87fc..007066aecb 100644
--- a/tests/multigrid/mg_renumbered_03.cc
+++ b/tests/multigrid/mg_renumbered_03.cc
@@ -385,7 +385,7 @@ void LaplaceProblem<dim>::refine_local ()
                                      Point<dim>(0,0) :
                                      Point<dim>(0,0,0));
           const double dist = p.distance(origin);
-          if (dist<0.25/M_PI)
+          if (dist<0.25/numbers::PI)
             {
               cell->set_refine_flag ();
               cell_refined = true;
diff --git a/tests/multigrid/step-16-02.cc b/tests/multigrid/step-16-02.cc
index 66a9e22e6c..60e181bcf9 100644
--- a/tests/multigrid/step-16-02.cc
+++ b/tests/multigrid/step-16-02.cc
@@ -27,6 +27,7 @@
 #include <deal.II/base/function.h>
 #include <deal.II/base/logstream.h>
 #include <deal.II/base/utilities.h>
+#include <deal.II/base/numbers.h>
 
 #include <deal.II/lac/constraint_matrix.h>
 #include <deal.II/lac/vector.h>
@@ -519,7 +520,7 @@ void LaplaceProblem<dim>::refine_grid (const std::string& reftype)
 					 Point<dim>(0,0) :
 					 Point<dim>(0,0,0));
 	      const double dist = p.distance(origin);
-	      if(dist<0.25/M_PI)
+	      if(dist<0.25/numbers::PI)
 		{
 		  cell->set_refine_flag ();
 		  cell_refined = true;
diff --git a/tests/multigrid/transfer_03.cc b/tests/multigrid/transfer_03.cc
index c7c0f700a5..c5bd165476 100644
--- a/tests/multigrid/transfer_03.cc
+++ b/tests/multigrid/transfer_03.cc
@@ -80,7 +80,7 @@ void refine_mesh (Triangulation<dim> &triangulation)
                                      Point<dim>(0,0) :
                                      Point<dim>(0,0,0));
           const double dist = p.distance(origin);
-          if (dist<0.25/M_PI)
+          if (dist<0.25/numbers::PI)
             {
               cell->set_refine_flag ();
               cell_refined = true;
-- 
2.39.5