assert(false) and GC

[Ali Çehreli]

On 7/8/21 11:11 AM, DLearner wrote:
> Hi
> 
> Please confirm that:
> `
>     assert(false, __FUNCTION__ ~ "This is an error message");
> `
> 
> Will _not_ trigger GC issues, as the text is entirely known at compile 
> time.
> 
> Best regards

One way of forcing compile-time evaluation in D is to define an enum 
(which means "manifest constant" in that use). I used @nogc to prove 
that there is no GC allocation as well:

@nogc
void main() {
   enum msg = __FUNCTION__ ~ "This is an error message";
   assert(false, msg);
}

Ali