From d3f5e34d088dd1b1c0b6b84d3ae09dc9a9eed2c3 Mon Sep 17 00:00:00 2001
From: Leonardo de Moura <leonardo@microsoft.com>
Date: Thu, 18 Jul 2013 17:44:05 -0700
Subject: [PATCH] Add numerics/numeric_traits.cpp

Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
---
 src/numerics/numeric_traits.cpp | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 src/numerics/numeric_traits.cpp

diff --git a/src/numerics/numeric_traits.cpp b/src/numerics/numeric_traits.cpp
new file mode 100644
index 000000000..f4befa294
--- /dev/null
+++ b/src/numerics/numeric_traits.cpp
@@ -0,0 +1,24 @@
+/*
+Copyright (c) 2013 Microsoft Corporation. All rights reserved. 
+Released under Apache 2.0 license as described in the file LICENSE.
+
+Author: Leonardo de Moura 
+*/
+#include <cfenv>
+#include <cmath>
+#include "numeric_traits.h"
+
+namespace lean {
+
+void set_processor_rounding(bool plus_inf) { 
+    if (plus_inf)
+        std::fesetround(FE_UPWARD);
+    else
+        std::fesetround(FE_DOWNWARD);
+}
+
+void double_power(double & v, unsigned k) {
+    v = std::pow(v, k);
+}
+
+};