CTFE write message to console

Carl Sturtivant sturtivant at gmail.com
Thu Apr 4 15:04:41 UTC 2024


On Thursday, 4 April 2024 at 14:06:19 UTC, Richard (Rikki) Andrew 
Cattermole wrote:
>
> ```d
> static assert(0, "message");
> ```
>
> Or if it is known to be CTFE'd
>
> ```d
> assert(0, "message");
> ```
>
> Just a warning, its a one time use only for both.
>
> No other way to do it.

That's ... unfortunate.

Some search of the forum led me to some [decade plus old 
discussion](https://forum.dlang.org/post/j1n1m2$24p0$1@digitalmars.com) of a possible CTFE writeln function that would be a no-op at runtime, which to my surprise led me to find [core_builtins.__ctfeWrite](https://dlang.org/phobos/core_builtins.html#.__ctfeWrite) but when I tried it out, it compiled yet output no text to the console. Given your remarks I suppose I should have expected this.


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