2 c=and(rshift(c, 1),0x55555555)+and(c,0x55555555)
3 c=and(rshift(c, 2),0x33333333)+and(c,0x33333333)
4 c=and(rshift(c, 4),0x0f0f0f0f)+and(c,0x0f0f0f0f)
5 c=and(rshift(c, 8),0x00ff00ff)+and(c,0x00ff00ff)
6 c=and(rshift(c,16),0x0000ffff)+and(c,0x0000ffff)
11 for (ret=0,n=split(ip,a,"\."),x=1;x<=n;x++) ret=or(lshift(ret,8),a[x])
15 function int2ip(ip,ret,x) {
18 for(;x<3;ret=and(ip,255)"."ret,ip=rshift(ip,8),x++);