Determine if CTFE or RT

[Stefan Koch]

On Sunday, 24 June 2018 at 18:21:09 UTC, rjframe wrote:
> On Sun, 24 Jun 2018 14:43:09 +0000, Mr.Bingo wrote:
>
>> let is(CTFE == x) mean that x is a compile time constant. 
>> CTFE(x)
>> converts a x to this compile time constant. Passing any 
>> compile time
>> constant essentially turns the variable in to a compile time
>> constant(effectively turns it in to a template with template 
>> parameter)
>> 
>
> You can use __ctfe:
>
> static if (__ctfe) {
>     // compile-time execution
> } else {
>     // run-time execution
> }

no that will not work.
it cannot be a static if.
it has to be an if.