@ctfeonly

[Walter Bright]

On 12/7/2017 5:30 PM, Manu wrote:
> I tried this, and was surprised it didn't work:
> 
> int ctfeOnly(int x)
> {
> static assert(__ctfe);
> return x + 1;
> }

The error is:

test2.d(3): Error: variable __ctfe cannot be read at compile time
test2.d(3):        while evaluating: static assert(__ctfe)

because static asserts are evaluated when the function is semantically analyzed, 
not when it is executed.