NetNews Offline 2/NetNews Offline Volume 2.iso/news/comp/lang/c++-part1/9764

Internet Message Format | 1996-08-05 | 1.6 KB

Path: lantana.singnet.com.sg!usenet
From: [e-mail] (Mikhail Choo W.M.)
Newsgroups: comp.lang.c++
Subject: how to delete data in file? help
Date: Tue, 05 Mar 1996 03:53:11 GMT
Organization: Singapore Telecom Internet Service
Message-ID: <4helpk$[e-mail]>
NNTP-Posting-Host: ts900-2823.singnet.com.sg
X-Newsreader: Forte Free Agent 1.0.82

HI there,
   I know this may seem like a real stupid question, but I had to ask. If say
for example I needed to delete a string of data form a file, how do I go about
doing it. I can't just write over the data to delete, because the result would
be a file of the same length with white space chracters. So how does one delete
the data in such a way that once the data segment is deleted, the rest of the
data would neatly pack themselves over the deleted area to  ensure a release of
space. I know one way to solve the problem, but it seems very long-winded. The
method involves reading all the data in the file to memory, deleteing the
unwanted area, and the re-write the data back to clean file. I am currently
using Borland C++ 4.5, and I can't find any function that does the job. OK OK,
to summerise, the problem is that I can't seem to find a way to directly delete
a data segment form a file, without reading into memory first. So any ideas, and
help would be greatly appreciated. Thanks in advance .
--------------------------------------------------------
Yours, Mikhail Choo W. M.
                                   Carpedium!
E-Mail: [e-mail]        sieze the day...
        [e-mail]
--------------------------------------------------------