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    <p>This is technically possible, it's just very very ugly. Here's a sample that generates a string literal for an unsigned int. It does not (yet) create a string of the form "1 2 3 ... i-1", however I'm sure it is possible if you're willing to spend the effort.</p> <pre><code>#include &lt;iostream&gt; #include &lt;string&gt; #include &lt;limits&gt; /////////////////////////////////////////////////////////////////////////////// // exponentiation calculations template &lt;int accum, int base, int exp&gt; struct POWER_CORE : POWER_CORE&lt;accum * base, base, exp - 1&gt;{}; template &lt;int accum, int base&gt; struct POWER_CORE&lt;accum, base, 0&gt; { enum : int { val = accum }; }; template &lt;int base, int exp&gt; struct POWER : POWER_CORE&lt;1, base, exp&gt;{}; /////////////////////////////////////////////////////////////////////////////// // # of digit calculations template &lt;int depth, unsigned int i&gt; struct NUM_DIGITS_CORE : NUM_DIGITS_CORE&lt;depth + 1, i / 10&gt;{}; template &lt;int depth&gt; struct NUM_DIGITS_CORE&lt;depth, 0&gt; { enum : int { val = depth}; }; template &lt;int i&gt; struct NUM_DIGITS : NUM_DIGITS_CORE&lt;0, i&gt;{}; template &lt;&gt; struct NUM_DIGITS&lt;0&gt; { enum : int { val = 1 }; }; /////////////////////////////////////////////////////////////////////////////// // Convert digit to character (1 -&gt; '1') template &lt;int i&gt; struct DIGIT_TO_CHAR { enum : char{ val = i + 48 }; }; /////////////////////////////////////////////////////////////////////////////// // Find the digit at a given offset into a number of the form 0000000017 template &lt;unsigned int i, int place&gt; // place -&gt; [0 .. 10] struct DIGIT_AT { enum : char{ val = (i / POWER&lt;10, place&gt;::val) % 10 }; }; struct NULL_CHAR { enum : char{ val = '\0' }; }; /////////////////////////////////////////////////////////////////////////////// // Convert the digit at a given offset into a number of the form '0000000017' to a character template &lt;unsigned int i, int place&gt; // place -&gt; [0 .. 9] struct ALT_CHAR : DIGIT_TO_CHAR&lt; DIGIT_AT&lt;i, place&gt;::val &gt;{}; /////////////////////////////////////////////////////////////////////////////// // Convert the digit at a given offset into a number of the form '17' to a character // Template description, with specialization to generate null characters for out of range offsets template &lt;unsigned int i, int offset, int numDigits, bool inRange&gt; struct OFFSET_CHAR_CORE_CHECKED{}; template &lt;unsigned int i, int offset, int numDigits&gt; struct OFFSET_CHAR_CORE_CHECKED&lt;i, offset, numDigits, false&gt; : NULL_CHAR{}; template &lt;unsigned int i, int offset, int numDigits&gt; struct OFFSET_CHAR_CORE_CHECKED&lt;i, offset, numDigits, true&gt; : ALT_CHAR&lt;i, (numDigits - offset) - 1 &gt;{}; // Perform the range check and pass it on template &lt;unsigned int i, int offset, int numDigits&gt; struct OFFSET_CHAR_CORE : OFFSET_CHAR_CORE_CHECKED&lt;i, offset, numDigits, offset &lt; numDigits&gt;{}; // Calc the number of digits and pass it on template &lt;unsigned int i, int offset&gt; struct OFFSET_CHAR : OFFSET_CHAR_CORE&lt;i, offset, NUM_DIGITS&lt;i&gt;::val&gt;{}; /////////////////////////////////////////////////////////////////////////////// // Integer to char* template. Works on unsigned ints. template &lt;unsigned int i&gt; struct IntToStr { const static char str[]; }; template &lt;unsigned int i&gt; const char IntToStr&lt;i&gt;::str[] = { OFFSET_CHAR&lt;i, 0&gt;::val, OFFSET_CHAR&lt;i, 1&gt;::val, OFFSET_CHAR&lt;i, 2&gt;::val, OFFSET_CHAR&lt;i, 3&gt;::val, OFFSET_CHAR&lt;i, 4&gt;::val, OFFSET_CHAR&lt;i, 5&gt;::val, OFFSET_CHAR&lt;i, 6&gt;::val, OFFSET_CHAR&lt;i, 7&gt;::val, OFFSET_CHAR&lt;i, 8&gt;::val, OFFSET_CHAR&lt;i, 9&gt;::val, NULL_CHAR::val }; /////////////////////////////////////////////////////////////////////////////// // Tests int _tmain(int argc, _TCHAR* argv[]) { std::wcout &lt;&lt; IntToStr&lt;17&gt;::str &lt;&lt; std::endl; std::wcout &lt;&lt; IntToStr&lt;173457&gt;::str &lt;&lt; std::endl; std::wcout &lt;&lt; IntToStr&lt; INT_MAX &gt;::str &lt;&lt; std::endl; std::wcout &lt;&lt; IntToStr&lt;0&gt;::str &lt;&lt; std::endl; std::wcout &lt;&lt; IntToStr&lt;1&gt;::str &lt;&lt; std::endl; std::wcout &lt;&lt; IntToStr&lt;-1&gt;::str &lt;&lt; std::endl; return 0; } </code></pre>
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    1. COThe OP's problem calls for an array with size that is at least proportional to the template argument value. I think that's impossible to do in portable standard C++ at the static init phase (although trivial at the dynamic init phase). But I could be wrong... :-) Cheers,
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      1. USCheers and hth. - Alf
    2. CO@Alf in C++0x it's trivial to do for static init phase to. Too bad we are still in 2010!
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      1. USJohannes Schaub - litb
 

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