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m →Compile-time class generation: "... 0 and 4" to match the order in the example |
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// factorial(4) would yield 24.
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The code above will execute at run time to determine the factorial value of the literals
By using template metaprogramming and template specialization to provide the ending condition for the recursion, the factorials used in the program—ignoring any factorial not used—can be calculated at compile time by this code:
<syntaxhighlight lang=cpp>
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