How to query a constexpr std::tuple at compile time?

Question

In C++0x, one can create a constexpr std::tuple, e.g. like

#include 
constexpr int i = 10;
constexpr float f = 2.4f;
constexpr double d = -10.4;         


        

Answer 1

I have not yet worked with C++0x, but it seems to me that std::get() is a function, rather than expression the compiler can directly interpret. As such, it has no meaning except at runtime, after the function itself has been compiled.