#define and structs

This is a discussion on #define and structs within the C Programming forums, part of the General Programming Boards category; I'm working on an enigma machine simulator. I'd supposed to do a #define for each one of the rotors and ...

  1. #1
    Registered User
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    Nov 2009
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    13

    #define and structs

    I'm working on an enigma machine simulator. I'd supposed to do a #define for each one of the rotors and reflectors. How do you do a #define for a char string? I have the program partially functional without using #define, so I'd like there to be as little changes as possible after using #define.

    Code:
    /*reflectors*/
    char B_ref_rotor[27] = "YRUHQSLDPXNGOKMIEBFZCWVJAT";
    char C_ref_rotor[27] = "FVPJIAOYEDRZXWGCTKUQSBNMHL";
    
    
    /* rotors */
    char rotor[5][27] = { 
    		"EKMFLGDQVZNTOWYHXUSPAIBRCJ",
    		"AJDKSIRUXBLHWTMCQGZNPYFVOE",
    		"BDFHJLCPRTXVZNYEIWGAKMUSQO",
    		"ESOVPZJAYQUIRHXLNFTGKDCMWB",
    		"VZBRGITYUPSDNHLXAWMJQOFECK",
    };
    After I get that figured out, I need to use structs and typedefs for whenever I want to access the rotor strings. I think it will be something like the following, but I'm not exactly sure.

    Code:
    struct rotors {
    	char rotor[5][27];
    };
    typedef struct rotors Rotor;
    Thanks everyone.

  2. #2
    ATH0 quzah's Avatar
    Join Date
    Oct 2001
    Posts
    14,826
    Why do you think you need a #define? Do you want:
    Code:
    #define FOO "thisisastringthatwillbewhereveryouuseFOO"
    Or what?


    Quzah.
    Hope is the first step on the road to disappointment.

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