Re: function

Bill Cunningham wrote:
"Joachim Schmitz" <nospam.jojo@xxxxxxxxxxxxxxxxxx> wrote in message
news:g1rpes$mp7$1@xxxxxxxxxxxx
[OT]
dd if=/dev/zero of=<your file> count=<your size>
[/OT]

Ah. The easy way out :)
Jep 8-) Why reinventing the wheel...

#include <stdio.h>
#include <stdlib.h>

int
main (int argc, char *argv[])
{
if (argc != 3)
{
puts ("usage error");
exit (EXIT_FAILURE);
}
char a = '0';
char a = '\0';

Why the termination string character?
It's not just that, it also is the nul character, a byte with all bits
unset.

Do you mean to replace my
line or are you adding one?
Replacing. Do you want zeros in the file or the ascii representation of the
charcter 0? I believe the earlier.

int b, num;
FILE *fp;
num = atoi (argv[2]);
fp = fopen (argv[1], "wb");

I am thinking that I would need a for loop involved here
somewhere. I am not sure what to put in the body.

while (num--)
fputc(a, fp);
fclose(fp);
return 0;
}

Still needs some error checking (num>=0, fp != NULL, fclose and fput
worked)

I can get that part. I think.
Yep, left as an excercise to the reader 8-)

Bill
Bye, Jojo


.

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