Re: Why function template 'among' is of complexity O(1) and not O(n)?

[Jakob Ovrum]

On Thursday, 20 February 2014 at 13:40:38 UTC, anonymous wrote:
When the value is not needed at compile time, the optimizer may 
go for it, but that's not guaranteed.

That's not really true. The optimizer will never try CTFE because 
of the halting problem. Runtime is runtime, compile-time is 
compile-time - they are clearly separated by the context of the 
expression alone.