Am Thu, 25 Aug 2016 11:45:40 +0000 schrieb Cauterite <cauter...@gmail.com>:
> - if a function is pure and called with constexpr parameters, the > compiler could potentially execute that call in the CTFE engine > (automatically), as part of the constant-folding phase I guess. > Such a technique will hopefully one day be practical, once the > CTFE engine's performance improves. Just a note on where compiler technology stands right now: Const-folding after inlining will have this effect for small pure functions. I've also seen GCC duplicate functions to remove one of the arguments with a constant if it figured it could optimize the function around that argument. This is effectively the same as having a 2nd version of the function that takes the run-time argument as a compile-time argument. -- Marco
