code: public static int cusolverDnSgeqrf_bufferSize(
          cusolverDnHandle handle, 
          int m, 
          int n, 
          Pointer A, 
          int lda, 
          int[] lwork)
      {
          return checkResult(cusolverDnSgeqrf_bufferSizeNative(handle, m, n, A, lda, lwork));
      }
docs: QR factorization