Diferences while saving int value through fwrite

[wehs]

Hi

Following code

#include <stdio.h>

int main(int argc, char** argv)
{
	int i = 9;
	FILE* fp;
	if((fp = fopen("data.dat","w")) == NULL)
	{
		perror("blad\n");
	}
	fwrite(&i,sizeof(int),1,fp);
	fclose(fp);
	return 0;
}

saves in file following data (hex): 09 00 00 00
but when I change i initialization from 9 to 10 then in file I have this:
0D 09 00 00 00

Can someone describe why there is "0D" at the beginning?

P.S. I'm using Microsoft Windows XP Sp3, Visual C++ 2005 EE

Thanks
Wehs

[jsmith]

If you mean 0D 0A 00 00 00

it is because you need to open the file in binary mode ("wb")
because it is treating as text and converting your unix newline
(0x0a) into a DOS newline (0x0d 0x0a).

[wehs]

Yes, there should be "0D 0A 00 00 00".

Thanks
Wehs