Function xgboost_sys::XGDMatrixCreateFromFile

pub unsafe extern "C" fn XGDMatrixCreateFromFile(
    fname: *const c_char,
    silent: c_int,
    out: *mut DMatrixHandle
) -> c_int

\brief load a data matrix \param fname the name of the file \param silent whether print messages during loading \param out a loaded data matrix \return 0 when success, -1 when failure happens