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div()                    General Function                   div()




Perform integer division

#iinncclluuddee <ssttddlliibb.hh>
ddiivv_tt ddiivv(_n_u_m_e_r_a_t_o_r, _d_e_n_o_m_i_n_a_t_o_r)
iinntt _n_u_m_e_r_a_t_o_r, _d_e_n_o_m_i_n_a_t_o_r;

ddiivv divides  _n_u_m_e_r_a_t_o_r by _d_e_n_o_m_i_n_a_t_o_r. It  returns a structure of
the type ddiivv_tt, which is structured as follows:


        typedef struct {
                int quot;
                int rem;
        } div_t;


ddiivv writes the quotient into qquuoott and the remainder into rreemm.

The  sign  of  the quotient  is  positive  if  the  signs of  the
arguments  are the  same;  it is  negative  if the  signs of  the
arguments differ.   The sign of the remainder is  the same as the
sign of the numerator.

If the  remainder is non-zero,  the magnitude of  the quotient is
the  largest integer  less than  the  magnitude of  the algebraic
quotient.  This is not guaranteed by the operators / and %, which
merely do what the machine implements for divide.

***** See Also *****

ggeenneerraall ffuunnccttiioonnss, llddiivv

***** Notes *****

The  ANSI Standard  includes  this function  to  permit a  useful
feature found in most versions  of FORTRAN, where the sign of the
remainder will  be the same as the sign  of the numerator.  Also,
on most  machines, division produces a  remainder.  This allows a
quotient  and remainder  to be  returned from  one machine-divide
operation.

If the  result of division  cannot be represented  (e.g., because
_d_e_n_o_m_i_n_a_t_o_r is  set to zero),  the behavior of  ddiivv is undefined.
_C_a_v_e_a_t _u_t_i_l_i_t_o_r.












COHERENT Lexicon                                           Page 1

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