Added mathsym+tcc and boost against all advice

eo/contrib/mathsym/eo_interface/eoSymInit.h

@@ -0,0 +1,64 @@
+/*	    
+ *             Copyright (C) 2005 Maarten Keijzer
+ *
+ *          This program is free software; you can redistribute it and/or modify
+ *          it under the terms of version 2 of the GNU General Public License as 
+ *          published by the Free Software Foundation. 
+ *
+ *          This program is distributed in the hope that it will be useful,
+ *          but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *          MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *          GNU General Public License for more details.
+ *
+ *          You should have received a copy of the GNU General Public License
+ *          along with this program; if not, write to the Free Software
+ *          Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#ifndef EOSYMINIT_H
+#define EOSYMINIT_H
+
+#include <eoInit.h>
+#include <TreeBuilder.h>
+
+/** Default initializer, Koza style */
+template <class EoType>
+class eoSymInit : public eoInit<EoType> {
+    
+    TreeBuilder& builder;
+    
+    double	own_grow_prob;
+    unsigned	own_max_depth;
+    
+    
+    double& grow_prob;
+    unsigned& max_depth;
+
+    public:
+	
+	/** By default build ramped half and half with max depth 6 */
+	eoSymInit(TreeBuilder& _builder) 
+	:   builder(_builder), 
+	    own_grow_prob(0.5), 
+	    own_max_depth(6),
+	    grow_prob(own_grow_prob), 
+	    max_depth(own_max_depth) 
+	{}
+
+	/** Control the grow_prob and max_depth externally */
+	eoSymInit(TreeBuilder& _builder, double& _grow_prob, unsigned& _max_depth) 
+	:   builder(_builder), 
+	    grow_prob(_grow_prob), 
+	    max_depth(_max_depth) 
+	{}
+   
+	/** build the tree */
+	void operator()(EoType& tree) {
+	    int depth_to_use = rng.random(max_depth-2) + 2; // two levels minimum
+	    builder.build_tree(tree, depth_to_use, rng.flip(grow_prob));
+	}
+    
+};
+
+#endif
+