c++ can count primes at compile time if the sieve size is known at compile time

[werto87]

c++ constexpr example "https://gist.github.com/werto87/e59883c731ece4926a6a212d920961e9"

I get in 5 seconds:
passes: 98510" with debug build
passes: 307252277" with release build (I think the compiler optimizes the calculation in the loop away)

[Guiorgy]

Yeah, but how do the compiled file sizes compare? You could probably achieve simmilar results if you manually precalculated all primes and listed them in the source, but that's not the point of this Repo