Created
February 17, 2011 22:56
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The simplest thing that can possibly work.
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| -module(n2c). | |
| -export([n2c/1]). | |
| n2c("255.255.255.255") -> 32; | |
| n2c("255.255.255.254") -> 31; | |
| n2c("255.255.255.252") -> 30; | |
| n2c("255.255.255.248") -> 29; | |
| n2c("255.255.255.240") -> 28; | |
| n2c("255.255.255.224") -> 27; | |
| n2c("255.255.255.192") -> 26; | |
| n2c("255.255.255.128") -> 25; | |
| n2c("255.255.255.0") -> 24; | |
| n2c("255.255.254.0") -> 23; | |
| n2c("255.255.252.0") -> 22; | |
| n2c("255.255.248.0") -> 21; | |
| n2c("255.255.240.0") -> 20; | |
| n2c("255.255.224.0") -> 19; | |
| n2c("255.255.192.0") -> 18; | |
| n2c("255.255.128.0") -> 17; | |
| n2c("255.255.0.0") -> 16; | |
| n2c("255.254.0.0") -> 15; | |
| n2c("255.252.0.0") -> 14; | |
| n2c("255.248.0.0") -> 13; | |
| n2c("255.240.0.0") -> 12; | |
| n2c("255.224.0.0") -> 11; | |
| n2c("255.192.0.0") -> 10; | |
| n2c("255.128.0.0") -> 9; | |
| n2c("255.0.0.0") -> 8; | |
| n2c("254.0.0.0") -> 7; | |
| n2c("252.0.0.0") -> 6; | |
| n2c("248.0.0.0") -> 5; | |
| n2c("240.0.0.0") -> 4; | |
| n2c("224.0.0.0") -> 3; | |
| n2c("192.0.0.0") -> 2; | |
| n2c("128.0.0.0") -> 1; | |
| n2c("0.0.0.0") -> 0. |
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