codice:
#include <stdio.h>
#include <io.h>
#include <fcntl.h>

void main()
{
	char 	filename[30];
	int 	handle;
	long int 	size;

	printf("Inserisci il nome del file: ");
	scanf("%s",filename);
	handle=_open(filename,_O_RDONLY);
	size=_filelength(handle); 
	printf("%d\n",size);
}