Cleanup stochastics implementation header

Fixes #261 (moved)

sim/src/core/opSimulation/modules/Stochastics/stochastics_implementation.cpp

@@ -16,8 +16,25 @@
 /** @file  stochastics_implementation.cpp */
 //-----------------------------------------------------------------------------
 
+#ifndef BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS
+/// \brief prevents any long double functions from being defined or used with Boost.Math
+/// this will reduce precision slightly, but will typically improve performance on 64-bit hardware
+/// \remark make valgrind working if opimization is set by compiler flags -O2, -O3, or -Og
+/// \sa     https://svn.boost.org/trac10/ticket/10005
+#define BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS
+#endif
+
+#ifndef BOOST_MATH_PROMOTE_DOUBLE_POLICY
+/// Don't use long double in boost math
+///
+/// From boost doc: Determines whether double types get promoted to long double internally to ensure maximum precision
+/// in the result, defaults to true, but can be set to false to turn promotion of double's off.
+#define BOOST_MATH_PROMOTE_DOUBLE_POLICY false
+#endif
+
 #include "stochastics_implementation.h"
 
+#include <boost/math/distributions/lognormal.hpp>
 #include <cmath>
 #include <stdexcept>