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In particular, would it be possible to have code similar to this c++ code executed at compile time in c#?
template <int N> struct Factorial { enum { value = N * Factorial<N - 1>::value }; }; template <> struct Factorial<0> { enum { value = 1 }; }; // Factorial<4>::value == 24 // Factorial<0>::value == 1 void foo() { int x = Factorial<4>::value; // == 24 int y = Factorial<0>::value; // == 1 }
No, metaprogramming of this complexity is not supported directly by the C# language. However, like @littlegeek said, the Text Template Transformation Toolkit included with Visual Studio will allow you to achieve code generation of any complexity.