gistfile1.txt

$ cat foo.c; gcc foo.c; ./a.out 
#include <stdio.h>

static
void print_bitmask(int a) {
	int i;
	for (i=0;i<(sizeof(int) * 8);i++) {
		if(a& ((int)1<<i)) putchar('1');
		else          putchar('0');
		if((i+1)%8 ==0) putchar(' ');
	}
}
main() {
	int i = 16777343;
	char *a = (unsigned char *)&i;
	print_bitmask(i);
	printf("IP: %d er %hhu.%hhu.%hhu.%hhu.\n",i, a[0], a[1], a[2], a[3]);

	unsigned int foo2 = 0;
	foo2 |= 127;
	foo2 = foo2 << 8;
	foo2 |= 0;
	foo2 = foo2 << 8;
	foo2 |= 0;
	foo2 = foo2 << 8;
	foo2 |= 1;

	printf("foo2: %u\n", foo2);
}
11111110 00000000 00000000 10000000 IP: 16777343 er 127.0.0.1.
foo2: 2130706433