From 47e26527a1f459675220ecc9a3934fcab8833457 Mon Sep 17 00:00:00 2001
From: Martin Nolte <mnolte@dune-project.org>
Date: Wed, 4 May 2011 10:43:51 +0000
Subject: [PATCH] A first implementation of Mathematical Constants (for
discussion)
[[Imported from SVN: r6436]]
---
dune/common/Makefile.am | 1 +
dune/common/math.hh | 40 ++++++++++++++++++++++++++++++++++++++++
2 files changed, 41 insertions(+)
create mode 100644 dune/common/math.hh
diff --git a/dune/common/Makefile.am b/dune/common/Makefile.am
index 47698d843..62c9109ab 100644
--- a/dune/common/Makefile.am
+++ b/dune/common/Makefile.am
@@ -57,6 +57,7 @@ commoninclude_HEADERS = \
iteratorfacades.hh \
lcm.hh \
lru.hh \
+ math.hh \
matvectraits.hh \
misc.hh \
mpicollectivecommunication.hh \
diff --git a/dune/common/math.hh b/dune/common/math.hh
new file mode 100644
index 000000000..9dd578c18
--- /dev/null
+++ b/dune/common/math.hh
@@ -0,0 +1,40 @@
+// -*- tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+// vi: set et ts=4 sw=2 sts=2:
+#ifndef DUNE_MATH_HH
+#define DUNE_MATH_HH
+
+#include <cmath>
+
+namespace Dune
+{
+
+ template< class Field >
+ struct MathematicalConstants;
+
+
+
+ // MathematicalConstants for double
+ // --------------------------------
+
+ template<>
+ struct MathematicalConstants< double >
+ {
+ static double e () { return std::exp( 1.0 ); }
+ static double pi () { return std::acos( -1.0 ); }
+ };
+
+
+
+ // MathematicalConstants for float
+ // -------------------------------
+
+ template<>
+ struct MathematicalConstants< float >
+ {
+ static float e () { return std::exp( 1.0f ); }
+ static float pi () { return std::acos( -1.0f ); }
+ };
+
+}
+
+#endif // #ifndef DUNE_MATH_HH
--
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