ECVT(3)                                                                ECVT(3)



NAME
       ecvt, fcvt, gcvt - output conversion

SYNOPSIS
       char *ecvt(value, ndigit, decpt, sign)
       double value;
       int ndigit, *decpt, *sign;

       char *fcvt(value, ndigit, decpt, sign)
       double value;
       int ndigit, *decpt, *sign;

       char *gcvt(value, ndigit, buf)
       double value;
       char *buf;

DESCRIPTION
       _E_c_v_t  converts  the  _v_a_l_u_e  to a null-terminated string of _n_d_i_g_i_t ASCII
       digits and returns a pointer thereto.   The  position  of  the  decimal
       point  relative  to  the  beginning  of the string is stored indirectly
       through _d_e_c_p_t (negative means to the left of the returned digits).   If
       the sign of the result is negative, the word pointed to by _s_i_g_n is non-
       zero, otherwise it is zero.  The low-order digit is rounded.

       _F_c_v_t is identical to _e_c_v_t, except  that  the  correct  digit  has  been
       rounded  for  Fortran F-format output of the number of digits specified
       by _n_d_i_g_i_t_s.

       _G_c_v_t converts the _v_a_l_u_e to a null-terminated ASCII string  in  _b_u_f  and
       returns  a  pointer  to _b_u_f_.  It attempts to produce _n_d_i_g_i_t significant
       digits in Fortran F format if possible, otherwise E format,  ready  for
       printing.  Trailing zeros may be suppressed.

SEE ALSO
       printf(3)

BUGS
       The  return values point to static data whose content is overwritten by
       each call.



7th Edition                      May 15, 1985                          ECVT(3)