important change to regrank interface, need some more test

python/xgboost_python.h

@@ -7,37 +7,51 @@
  *      use c style interface
  */
 #include "../booster/xgboost_data.h"
-/*! \brief type of row entry */
-typedef xgboost::booster::FMatrixS::REntry XGEntry;
-
-/*! 
- * \brief create a data matrix 
- * \return a new data matrix
- */
-void* XGDMatrixCreate(void);
-/*! 
- * \brief free space in data matrix
- */
-void XGDMatrixFree(void *handle);
-/*! 
- * \brief load a data matrix from text file or buffer(if exists)
- * \param handle a instance of data matrix
- * \param fname file name 
- */
-void XGDMatrixLoad(void *handle, const char *fname);
-/*!
- * \brief load a data matrix into binary file
- * \param handle a instance of data matrix
- * \param fname file name 
- */
-void XGDMatrixSaveBinary( void *handle, const char *fname );
-/*! 
- * \brief add row 
- * \param handle a instance of data matrix
- * \param fname file name 
- * \return a new data matrix
- */
-//void XGDMatrixPush( void *handle, const std::pair<int,> );
+extern "C"{
+    /*! \brief type of row entry */
+    typedef xgboost::booster::FMatrixS::REntry XGEntry;
+    
+    /*! 
+     * \brief create a data matrix 
+     * \return a new data matrix
+     */
+    void* XGDMatrixCreate(void);
+    /*! 
+     * \brief free space in data matrix
+     */
+    void XGDMatrixFree(void *handle);
+    /*! 
+     * \brief load a data matrix from text file or buffer(if exists)
+     * \param handle a instance of data matrix
+     * \param fname file name 
+     * \param silent print statistics when loading
+     */
+    void XGDMatrixLoad(void *handle, const char *fname, int silent);
+    /*!
+     * \brief load a data matrix into binary file
+     * \param handle a instance of data matrix
+     * \param fname file name 
+     * \param silent print statistics when saving
+     */
+    void XGDMatrixSaveBinary(void *handle, const char *fname, int silent);
+    /*! 
+     * \brief add row 
+     * \param handle a instance of data matrix
+     * \param fname file name 
+     * \return a new data matrix
+     */
+    void XGDMatrixPush(void *handle, const XGEntry *data, int len);
+    
+    /*! 
+     * \brief create a booster
+     */
+    void* XGBoostCreate(void);
 
+    /*! 
+     * \brief create a booster
+     */
+    void* XGBoost(void);
+    
+};
 #endif