ECVT(3)                              BSD                               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
     ecvt converts the value to a null terminated string of ndigit ASCII
     digits and returns a pointer thereto.  The position of the decimal point
     relative to the beginning of the string is stored indirectly through
     decpt (negative means to the left of the returned digits).  If the sign
     of the result is negative, the word pointed to by sign is nonzero;
     otherwise, it is 0.  The low-order digit is rounded.

     fcvt is identical to ecvt, except that the correct digit has been rounded
     for FORTRAN F-format output of the number of digits specified by ndigits.

     gcvt converts the value to a null terminated ASCII string in buf and
     returns a pointer to buf. It attempts to produce ndigit significant
     digits in FORTRAN F format, if possible; otherwise E format, ready for
     printing.  Trailing 0s may be suppressed.

SEE ALSO
     printf(3)

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