Obtaining an address given a (run time) variable name

matheus matheus at gmail.com
Tue Jan 21 20:26:53 UTC 2025


On Tuesday, 21 January 2025 at 09:34:29 UTC, DLearner wrote:
> ...
> Suppose we have:
> ```
> string str1 = "A" ~ "B";
> ```
>
> Does that produce:
>    str1 == x'41' x'42' x'00' or
>         == x'41' x'00' x'42' x'00' or
>         == x'41' x'00' x'42' x'00' x'00'?
>
> And is str1.length == 2 or
>                    == 3 or
>                    == 4?

void main() {
   string str1 = "A" ~ "B";
   static string s =  "CD";
}

.L.str:
         .asciz  "AB"

immutable(char)[] example.main().s:
         .quad   2
         .quad   .L.str.1

.L.str.1:
         .asciz  "CD"

LDC (GDC seems pretty close).

https://godbolt.org/z/hjn3qKE19

Matheus.


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