ftell

Calc Software Package for Number Calc

NAME
    ftell - return a file position

SYNOPSIS
    ftell(fd)

TYPES
    fd		open file stream

    return	non-negative integer or error value

DESCRIPTION
    This function attempts to return the current value of the file position
    indicator for the stream.  This is the number of characters (bytes)
    between the beginning of the file and the position of the
    next character for output in "w" or "w+" mode or for input.

     On failure, this returns an error value.

EXAMPLE
    ; fd = fopen("/tmp/curds", "w")
    ; fputs(fd, "0123456789")
    ; ftell(fd)
	10
    ; fputs(fd, "abcdef")
    ; ftell(fd)
	16
    ; fseek(fd, 20, 0)
    ; ftell(fd)
	20
    ; fputs(fd, "01234")
    ; ftell(fd)
	25
    ; freopen(fd, "r")
    ; fscanf(fd, "%*5c")
	0
    ; ftell(fd)
	5

LIMITS
    none

LINK LIBRARY
    none

SEE ALSO
    fseek, fgetpos, fsetpos, rewind, strerror

## Copyright (C) 1999  Landon Curt Noll
##
## Calc is open software; you can redistribute it and/or modify it under
## the terms of the version 2.1 of the GNU Lesser General Public License
## as published by the Free Software Foundation.
##
## Calc is distributed in the hope that it will be useful, but WITHOUT
## ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
## or FITNESS FOR A PARTICULAR PURPOSE.	 See the GNU Lesser General
## Public License for more details.
##
## A copy of version 2.1 of the GNU Lesser General Public License is
## distributed with calc under the filename COPYING-LGPL.  You should have
## received a copy with calc; if not, write to Free Software Foundation, Inc.
## 59 Temple Place, Suite 330, Boston, MA  02111-1307, USA.
##
## @(#) $Revision: 29.3 $
## @(#) $Id: ftell,v 29.3 2006/05/07 07:25:46 chongo Exp $
## @(#) $Source: /usr/local/src/cmd/calc/help/RCS/ftell,v $
##
## Under source code control:	1995/03/04 11:33:21
## File existed as early as:	1995
##
## chongo <was here> /\oo/\	http://www.isthe.com/chongo/
## Share and enjoy!  :-)	http://www.isthe.com/chongo/tech/comp/calc/