template <float number> struct Value { static const float VALUE = number; };
The crazier part is that they have allowed enough other syntax sugar that you can fake it.. So why not just support it in the first place??
#include <iostream> template <int NUM, int DEN> struct Float { constexpr static float value() { return (float)NUM / (float)DEN; } static constexpr float VALUE = value(); }; template <class GRAD, class CONST> struct LinearFunc { static float func(float x) { return GRAD::VALUE*x + CONST::VALUE; } }; int main() { // Y = 0.333 x + 0.2 // x=2, y=0.866 std::cout << " func(2) = " << LinearFunc<Float<1,3>, Float<1,5> > ::func(2) << std::endl; }
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