big change, change interface to template, everything still OK

booster/xgboost-inl.hpp

@@ -0,0 +1,33 @@
+#ifndef XGBOOST_INL_HPP
+#define XGBOOST_INL_HPP
+/*!
+ * \file xgboost-inl.hpp
+ * \brief bootser implementations 
+ * \author Tianqi Chen: tianqi.tchen@gmail.com
+ */
+// implementation of boosters go to here 
+#include "xgboost.h"
+#include "../utils/xgboost_utils.h"
+#include "tree/xgboost_tree.hpp"
+#include "linear/xgboost_linear.hpp"
+
+namespace xgboost{
+	namespace booster{
+		/*! 
+		* \brief create a gradient booster, given type of booster
+		* \param booster_type type of gradient booster, can be used to specify implements
+        * \tparam FMatrix input data type for booster
+		* \return the pointer to the gradient booster created
+		*/
+        template<typename FMatrix>
+        inline InterfaceBooster<FMatrix> *CreateBooster( int booster_type ){
+			switch( booster_type ){
+            case 0: return new RegTreeTrainer<FMatrix>();
+            case 1: return new LinearBooster<FMatrix>();
+			default: utils::Error("unknown booster_type"); return NULL;
+			}
+		}
+	};
+};
+
+#endif // XGBOOST_INL_HPP