grep help Post: 302288081

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LEARN ABOUT BSD

gcvt

ECVT(3) 						     Library Functions Manual							   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 non-zero, otherwise it is zero.  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 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)