ZLARFX applies a complex elementary reflector H to a complex m by n
 matrix C, from either the left or the right. H is represented in the
 form

       H = I - tau * v * v**H

 where tau is a complex scalar and v is a complex vector.

 If tau = 0, then H is taken to be the unit matrix

 This version uses inline code if H has order < 11.

          SIDE is CHARACTER*1
          = 'L': form  H * C
          = 'R': form  C * H

          M is INTEGER
          The number of rows of the matrix C.

          N is INTEGER
          The number of columns of the matrix C.

          V is COMPLEX*16 array, dimension (M) if SIDE = 'L'
                                        or (N) if SIDE = 'R'
          The vector v in the representation of H.

          TAU is COMPLEX*16
          The value tau in the representation of H.

          C is COMPLEX*16 array, dimension (LDC,N)
          On entry, the m by n matrix C.
          On exit, C is overwritten by the matrix H * C if SIDE = 'L',
          or C * H if SIDE = 'R'.

          LDC is INTEGER
          The leading dimension of the array C. LDA >= max(1,M).

          WORK is COMPLEX*16 array, dimension (N) if SIDE = 'L'
                                            or (M) if SIDE = 'R'
          WORK is not referenced if H has order < 11.