Re: reading text file data

From:
"Tom Serface" <tom.nospam@camaswood.com>
Newsgroups:
microsoft.public.vc.mfc
Date:
Fri, 11 May 2007 10:51:14 -0700
Message-ID:
<7FCAC9BA-5029-4229-AE1F-11632B2ED5AB@microsoft.com>
To add to David's comment you will want to get the response from fread (the
number of bytes actually read) and pass that to fwrite instead of the fixed
size. The last block you read may be considerable smaller. Also, I agree
with David. If you want an exact file use rb and wb instead of rt and wt.

Since you are posting in MFC group, you may want to consider using CFile
instead. It will make the process a lot easier to code.

Tom

"Ed" <eddie@hvc.rr.com> wrote in message news:X511i.7$rT6.4@trndny08...

I have the folowing code I snippet to open and read an existing txt file to
a char string.

 FILE *in, *out;
 char gro[10000];
 CString Tpath = "C:\\temp1\\";
 Tpath += "template.gro";
 in=fopen(Tpath, "rt");
 fread (gro, 6159, 1, in);
 fclose (in);

I have the following code to write the same file data to a different name.

 CString Opath = "C:\\temp2\\";
 Opath += "1.gro";
 out=fopen(Opath, "wt");
 fwrite (gro, 6159, 1, out);
 fclose (out);

For some reason the saved file is more than 6159 bytes and the extra data
is junk.
Any ideas?

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