betterC and CTFE

[Max Samukha]

On Saturday, 7 January 2023 at 02:09:00 UTC, Walter Bright wrote:

> So, making some experiments, I found it usually worked. 
> Searching bugzilla, I found one case that didn't:
>
>   https://issues.dlang.org/show_bug.cgi?id=20101
>
> and fixed it:
>
>   https://github.com/dlang/dmd/pull/14789
>

Simple test cases still don't compile:

string foo()()
{
     string a, b;
     return a ~ b;
}

enum s = foo();

./dmd -c -betterC test.d
test.d(4): Error: array concatenation of expression `a ~ b` 
requires the GC which is not available with -betterC