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    <p>You won't be able to define an <code>enum</code> externally. In C++11 you can forward declare an <code>enum</code>, however:</p> <pre><code>enum class Items: char; </code></pre> <p>... and later define it:</p> <pre><code>enum class Items: char { PAC = 'C', GHOST = '@', FRUIT = 'o', POINTS = '.', WALL = '#', EMPTY = ' ', UNDEFINED = '+' }; </code></pre> <p>Note, however, that you can use the enumerator tags only where the definition was seen.</p> <p>Based on your comment about multiple definitions, you don't have include guards in your header and the same header gets included multiple times. That is, seems you could have a header something like this:</p> <pre><code>// items.h #ifndef INCLUDED_ITEMS #define INCLUDED_ITEMS enum Items { ... }; #endif </code></pre> <p>From the looks of it, you are trying to fold the representation of the game into into the definition of their names. That probably doesn't work too well, especially as they may change appearance (you might want to have <code>PAC</code> alternate between <code>C</code> and <code>O</code>, for example). Most likely the actual code will talk about these names and you'll have the in multiple places. Just use an <code>enum</code> to define the different items not defining any value for them and define their representation elsewhere:</p> <pre><code>enum Items { PAC, GHOST, FRUIT, POINTS, WALL, EMPTY, UNDEFINED }; extern char ItemDisplay[]; // elsewhere char ItemDisplay[] = { 'C', '@', 'o', '.', '#', ' ', '+' }; </code></pre> <p>... and then just use <code>ItemDisplay[item]</code> whenever you need to draw an <code>item</code>.</p>
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    1. USDietmar Kühl
    1. USDietmar Kühl
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    1. COHm, i'm not using c++ 11. I just want to have the enum in the config.h. But if i define it there it tells me i have multiple definitions. I tried solving this by declare it extern and define it in a config.cpp :(
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      1. USAnnoyedGuy
    2. CO@AnnoyedGuy: I understand that you want to separate some declaration from its definition. However, it is unclear what you are actually trying to achieve! If your goal is to configure the `char` used to represent the different game figures, you'd use a different approach, for example.
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      1. USDietmar Kühl
    3. COyes the enums should represent the game figures. What approach would i use for them?
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