Function xgboost_sys::XGDMatrixNumCol
source · pub unsafe extern "C" fn XGDMatrixNumCol(
handle: DMatrixHandle,
out: *mut bst_ulong
) -> c_int
Expand description
\brief get number of columns \param handle the handle to the DMatrix \param out The output of number of columns \return 0 when success, -1 when failure happens