bgneal@1: #ifndef CPP_ENIGMA_ENIGMA_UTILS_H
bgneal@1: #define CPP_ENIGMA_ENIGMA_UTILS_H
bgneal@1: // Copyright (C) 2012 by Brian Neal.
bgneal@1: // This file is part of Cpp-Enigma, the Enigma Machine simulation.
bgneal@1: // Cpp-Enigma is released under the MIT License (see License.txt).
bgneal@1: //
bgneal@1: // enigma_utils.h - This file contains common functions used throughout Cpp-Enigma.
bgneal@1: 
bgneal@4: #include <string>
bgneal@4: 
bgneal@1: namespace enigma
bgneal@1: {
bgneal@1:    // This version of mod acts like Python's with respect to negative dividends.
bgneal@1:    inline int alpha_mod(int dividend)
bgneal@1:    {
bgneal@1:       if (dividend < 0)
bgneal@1:       {
bgneal@1:          dividend += 26;
bgneal@1:       }
bgneal@1:       return dividend % 26;
bgneal@1:    }
bgneal@4: 
bgneal@4:    // Removes spaces from a string and returns the resulting string:
bgneal@4:    std::string remove_spaces(const std::string& s);
bgneal@12: 
bgneal@12:    // Removes spaces & converts to signal numbers:
bgneal@12:    std::string preprocess_ciphertext(const std::string& s);
bgneal@1: }
bgneal@1: 
bgneal@1: #endif