/usr/share/calc/help/fseek is in apcalc-common 2.12.4.4-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 | NAME
fseek - set a file position
SYNOPSIS
fseek(fd, offset [, whence])
TYPES
fd open file stream
pos integer
whence 0, 1 or 2, defaulting to 0
return null or error value
DESCRIPTION
This function sets the file position indicator for the stream by
adding offset to zero, the current value, or the size of the
file, according as whence is 0, 1 or 2. The effect is equivalent to
moving the signed distance offset from the beginning, the current
position, or the end of the file.
The function also clears the end-of-file flag and flushes any
buffered data waiting to be output to the stream.
An implementation-defined error occurs if the effect would be to
give a negative value to the position indicator; on some systems, the
file position will be set to end-of-file.
The file position indicator may have a value greater than the file
size. If characters are then written to the file, the gap is
filled by null ('\0') characters.
EXAMPLE
; fd = fopen("/tmp/curds", "w")
; fputs(fd, "0123456789abcdef")
; freopen(fd, "r")
; fsize(fd)
16
; fseek(fd, 5)
; fgets(fd)
"56789abcdef"
; fseek(fd, 0)
; fscanf(fd, "%*5c")
0
; fseek(fd, 5, 1)
; fgets(fd)
"abcdef"
; ftell(fd)
16
; fseek(fd, -5, 2)
; fgets(fd)
"bcdef"
; fseek(fd, -2)
System error 22
; ftell(fd)
16
The results for the last four lines may be different for different systems.
LIMITS
Some details of the operation of this function may be implementation-
dependent, particularly for older systems.
LINK LIBRARY
none
SEE ALSO
ftell, 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.
## 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
##
## @(#) $Revision: 30.1 $
## @(#) $Id: fseek,v 30.1 2007/03/16 11:10:42 chongo Exp $
## @(#) $Source: /usr/local/src/cmd/calc/help/RCS/fseek,v $
##
## Under source code control: 1995/03/04 11:33:20
## 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/
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