Mercurial > public > cpp-enigma
annotate enigma/enigma_utils.h @ 3:f4e25e6b76c3
Created plugboard class and tests.
| author | Brian Neal <bgneal@gmail.com> |
|---|---|
| date | Sat, 23 Jun 2012 23:28:17 -0500 |
| parents | 1459e74fda3f |
| children | 2792ca4ffa84 |
| rev | line source |
|---|---|
| bgneal@1 | 1 #ifndef CPP_ENIGMA_ENIGMA_UTILS_H |
| bgneal@1 | 2 #define CPP_ENIGMA_ENIGMA_UTILS_H |
| bgneal@1 | 3 // Copyright (C) 2012 by Brian Neal. |
| bgneal@1 | 4 // This file is part of Cpp-Enigma, the Enigma Machine simulation. |
| bgneal@1 | 5 // Cpp-Enigma is released under the MIT License (see License.txt). |
| bgneal@1 | 6 // |
| bgneal@1 | 7 // enigma_utils.h - This file contains common functions used throughout Cpp-Enigma. |
| bgneal@1 | 8 |
| bgneal@1 | 9 namespace enigma |
| bgneal@1 | 10 { |
| bgneal@1 | 11 // This version of mod acts like Python's with respect to negative dividends. |
| bgneal@1 | 12 inline int alpha_mod(int dividend) |
| bgneal@1 | 13 { |
| bgneal@1 | 14 if (dividend < 0) |
| bgneal@1 | 15 { |
| bgneal@1 | 16 dividend += 26; |
| bgneal@1 | 17 } |
| bgneal@1 | 18 return dividend % 26; |
| bgneal@1 | 19 } |
| bgneal@1 | 20 } |
| bgneal@1 | 21 |
| bgneal@1 | 22 #endif |